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REVIEWED BLD2023-0233+Manufacturer_Specifications_and_Installation_Instructions+2.22.2023_1.34.21_PM+3382905REVIEWED BY CITY OF EDMONDS NE TECHNOLOGIES CITY OF LYNNWOOD TECHNICAL SPECIFICATIONS FOR: RECEIVED Feb 22 2023 BLD2023-0233 Wastewater Treatment Plant Aeration Blower Upgrades Trane Technologies 2333 158`h Court NE Bellevue, WA 98008 Phone: (425) 586-1622 Greg Stinson Project No. 210305.00.0002 WINTER 2022 RH2 Engineering, Inc 22722 29`h Drive SE, Suite 210 Bothell, WA 98021 Phone: (509) 886-6784 Contact: Eric Smith, PE TRANS TECHNOLOGIES CITY OF LYNN WOOD TECHNICAL SPECIFICATIONS FOR: Wastewater Treatment Plant Aeration Blower Upgrades Project No. 210305.00.0002 WINTER 2022 THE CONTENT OF THIS DOCUMENT, AS A MEANS OF PROFESSIONAL SERVICE, IS PROTECTED BY 17 U.S.C. 4 101, ET SEQ. AS SUCH, IT SHALL NOT BE USED, IN WHOLE OR IN PART, FOR ANY OTHER PROJECT OR PURPOSE WITHOUT WRITTEN AUTHORIZATION FROM RH2 ENGINEERING. © 2022 RH2 ENGINEERING, INC. Signed: 02/25/2022 Table of Contents DIVISION 1 GENERAL..........................................................................................................................................1-1 1.10 GENERAL.......................................................................................................................................................... 1-1 1.10.16 Definitions............................................................................................................................................ 1-1 1.11.00 Summary of Work................................................................................................................................ 1-1 1.11.02 Reuse of Documents............................................................................................................................. 1-1 1.11.03 Electronic Data..................................................................................................................................... 1-2 1.13 Permits and Licenses................................................................................................................................. 1-2 1.14 Work Restrictions...................................................................................................................................... 1-3 1.14.19 Use of Site............................................................................................................................................ 1-3 1.33 Submittals................................................................................................................................................. 1-3 1.33.23 Shop Drawings, Product Data, and Samples........................................................................................ 1-3 1.40 QUALITY REQUIREMENTS..................................................................................................................................... 1-5 1.42.19 Reference Standards............................................................................................................................ 1-5 1.60 PRODUCT REQUIREMENTS.................................................................................................................................... 1-5 1.61.31 Integrated (or Package) Products........................................................................................................ 1-5 1.70 EXECUTION AND CLOSEOUT REQUIREMENTS............................................................................................................ 1-6 1.75 Testing....................................................................................................................................................... 1-6 1.75.01 General Phasing................................................................................................................................... 1-6 1.75.02 General Testing Requirements............................................................................................................. 1-6 1.75.03 Scheduling and Notification of Testing................................................................................................ 1-7 1.75.16.40 Electrical and Control Systems Testing........................................................................................... 1-8 1.78 Closeout Submittals.................................................................................................................................. 1-8 1.78.23 Operation and Maintenance Data....................................................................................................... 1-8 1.78.39 Project Record Documents................................................................................................................. 1-10 1.79 Demonstration and Training................................................................................................................... 1-10 1.79.10 Training.............................................................................................................................................. 1-10 1.80 PERFORMANCE REQUIREMENTS.......................................................................................................................... 1-10 1.81 Facility Performance Requirements........................................................................................................ 1-10 1.81.30 Seismic Restraint and Anchorage....................................................................................................... 1-10 1.81.45 Location Designations........................................................................................................................ 1-11 DIVISION3 CONCRETE........................................................................................................................................3-1 3.00 GENERAL.......................................................................................................................................................... 3-1 3.05 Common Work for Concrete...................................................................................................................... 3-1 3.10 FORMING AND ACCESSORIES................................................................................................................................. 3-3 3.11 Formwork.................................................................................................................................................. 3-3 3.11.13 Structural Cast in Place Forming.......................................................................................................... 3-3 3.15.19 Concrete Anchors................................................................................................................................. 3-4 3.20 REINFORCING.................................................................................................................................................... 3-5 3.21 Reinforcement Bars................................................................................................................................... 3-5 3.21.11 Plain Steel Reinforcement Bars............................................................................................................ 3-5 3.30 CAST -IN -PLACE CONCRETE................................................................................................................................... 3-6 3.30.05 Common Work for Cast in Place Concrete........................................................................................... 3-6 3.31 Structural Concrete................................................................................................................................... 3-8 3.35 Concrete Finishing..................................................................................................................................... 3-9 Table of Contents 3.35.05 Common Work for Surface Finishing.................................................................................................... 3-9 3.35.54 Floated Finish....................................................................................................................................... 3-9 3.39 Concrete Curing......................................................................................................................................... 3-9 3.60 GROUTING...................................................................................................................................................... 3-10 3.62 Non -Shrink Grouting............................................................................................................................... 3-10 3.62.13 Non -Metallic Non -Shrink Grout.......................................................................................................... 3-10 DIVISION 11 EQUIPMENT..................................................................................................................................11-1 11.00 GENERAL...................................................................................................................................................... 11-1 11.05 Common Work for Equipment.............................................................................................................. 11-1 11.70 BLOWERS...................................................................................................................................................... 11-1 11.70.55.11—TURBO BLOWER................................................................................................................................ 11-1 PART1 - GENERAL................................................................................................................................................... 11-1 Summary......................................................................................................................................................... 11-1 PART2 — PRODUCTS —TURBO BLOWER....................................................................................................................... 11-3 PART3 — EXECUTION................................................................................................................................................ 11-9 11.70.55.31 ROTARY SCREW BLOWERS.................................................................................................................... 11-10 Summary....................................................................................................................................................... 11-10 PART 2 — PRODUCTS — SCREW BLOWER..................................................................................................................... 11-13 PART3 — EXECUTION.............................................................................................................................................. 11-16 DIVISION 15 MECHANICAL................................................................................................................................15-1 15.00 GENERAL...................................................................................................................................................... 15-1 15.05 Common Work for Mechanical............................................................................................................. 15-1 15.20 PIPE AND FITTINGS......................................................................................................................................... 15-2 15.21 Common Work for Pipe and Fittings..................................................................................................... 15-2 15.22 Metal Pipe and Fittings......................................................................................................................... 15-3 15.22.02 Ductile Iron Pipe and Fittings........................................................................................................... 15-3 15.22.05 Galvanized Steel Pipe....................................................................................................................... 15-3 15.22.08 Brass/Bronze Pipe and Fittings........................................................................................................ 15-4 15.30 VALVES......................................................................................................................................................... 15-4 15.31 Common Work for Valves..................................................................................................................... 15-4 15.32Isolation Valves..................................................................................................................................... 15-5 15.32.03 Butterfly Valves Class 150................................................................................................................ 15-5 15.40 PIPING SPECIALTIES......................................................................................................................................... 15-6 15.40.03 Pipe, Valve, and Conduit Supports................................................................................................... 15-6 15.40.04 Dielectric Fittings and Adapters....................................................................................................... 15-8 15.60 PRESSURE MEASUREMENT............................................................................................................................... 15-9 15.60.01 Common Work for Pressure Measurement...................................................................................... 15-9 15.61 Pressure Gauges.................................................................................................................................. 15-10 DIVISION 16 ELECTRICAL...................................................................................................................................16-1 16.00 GENERAL...................................................................................................................................................... 16-1 16.05 Common Work for Electrical................................................................................................................. 16-1 16.30 BASIC PANEL EQUIPMENT AND DEVICES.............................................................................................................. 16-6 16.31 Operating and Indicating Devices......................................................................................................... 16-6 Table of Contents 16.31.4 Indicating Lights................................................................................................................................. 16-6 16.31.5 Selector Switch................................................................................................................................... 16-7 16.31.6 Pushbuttons....................................................................................................................................... 16-7 16.32 Panel Relays.......................................................................................................................................... 16-8 16.32.1 Control Relays.................................................................................................................................... 16-8 16.32.3 Time Delay Relays.............................................................................................................................. 16-8 16.35 Control Panel Accessories..................................................................................................................... 16-9 16.35.1 Terminal Blocks.................................................................................................................................. 16-9 16.35.2 Nameplates........................................................................................................................................ 16-9 16.40 LOW VOLTAGE MOTOR CONTROL EQUIPMENT.................................................................................................. 16-10 16.41.1 Motor Control Center....................................................................................................................... 16-10 16.45 Variable Frequency Drive.................................................................................................................... 16-11 16.55 Switches and Protective Devices......................................................................................................... 16-27 16.55.1 Common Work for Switches and Protective Devices........................................................................ 16-27 16.55.16 Molded Case Circuit Breakers........................................................................................................ 16-28 16.60 CONDUCTORS.............................................................................................................................................. 16-28 16.61 Low Voltage Wire and Cable............................................................................................................... 16-28 16.63 Signal Cable......................................................................................................................................... 16-30 16.70 RACEWAYS, BOXES, AND FITTINGS................................................................................................................... 16-31 16.71 Raceways............................................................................................................................................ 16-31 16.72 Boxes and Enclosures.......................................................................................................................... 16-33 16.72.2 Outlet and Junction Boxes................................................................................................................ 16-33 16.72.3 Watertight Enclosures...................................................................................................................... 16-34 16.75 Wiring Devices.................................................................................................................................... 16-35 16.75.1 Common Work for Wiring Devices................................................................................................... 16-35 16.95.3 Conductor Test Report..................................................................................................................... 16-37 Division 1 General 1.10 GENERAL Sections in these specifications titled "Common Work for . . ." shall apply to all following subsections whether directly referenced or not. Sections in these specifications titled "Related Sections" shall be read as integral to the specification as if they were fully detailed within. All work and materials described in such sections shall be provided and performed by the Contractor. 1.10.16 Definitions Approximate: Generally as shown or described, but has not been verified, or may require adjustment. No level of accuracy is implied or should be assumed. Or Equal (Or Approved Equal): An alternate product, assembly, or method that the Owner's Representative has reviewed based on information provided by the Contractor and determined to provide functional equivalence, or better, than that specified. Such determination does not relieve the Contractor from responsibility should the product, process, or method fail to perform as needed. Owner's Representative: Person(s) authorized by the Owner to observe the work, administer the contract, approve tests, make decisions, and otherwise act as an agent of the Owner. The terms Engineer, Owner's Observer, Owner's Inspector, and Owner are generally interchangeable with the term Owner's Representative. Proposed: The word refers to work that is part of the Contract, to be performed by the Contractor. The word "proposed" does not need to show up to indicate work by the Contractor. Unless work is specifically noted to be performed by others, all work is to be performed by the Contractor. 1.11.00 Summary of Work The City of Lynnwood (City) Wastewater Treatment Plant (WWTP) Aeration Blowers Upgrade covers the replacement of two existing aeration blowers with a new blower package consisting of one turbo blower and two rotary screw blowers. This specification applies to the supply and installation of the proposed blowers and their associated appurtenances, including services for testing and start-up of the equipment, such that the City is provided with a complete and fully operable system. 1.11.02 Reuse of Documents Contractor and any Subcontractor or Supplier shall not: 1. Have or acquire any title to or ownership rights in any of the Drawings, Specifications, or other documents (or copies of any thereof) prepared by or bearing the seal of Engineer or its consultants, including electronic media editions; or 2. Reuse any such Drawings, Specifications, other documents, or copies thereof on extensions of the Project or any other project without written consent of Owner and Engineer and specific written verification or adaptation by Engineer. 1-1 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 2/25/22 1:16 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 3. The prohibitions of this Paragraph will survive final payment, or termination of the Contract. Nothing herein shall preclude Contractor from retaining copies of the Contract Documents for record purposes. 1.11.03 Electronic Data 1. Unless otherwise stated in the Supplementary Conditions, the data furnished by Owner to Contractor, or by Contractor to Owner, that may be relied upon are limited to the printed copies (also known as hard copies). Files in electronic media format of text, data, graphics, or other types are furnished only for the convenience of the receiving party. Any conclusion or information obtained or derived from such electronic files will be at the user's sole risk. If there is a discrepancy between the electronic files and the hard copies, the hard copies govern. 2. Because data stored in electronic media format can deteriorate or be modified inadvertently or otherwise without authorization of the data's creator, the party receiving electronic files agrees that it will perform acceptance tests or procedures within 30 days, after which the receiving party shall be deemed to have accepted the data thus transferred. Any errors detected within the 30-day acceptance period will be corrected by the transferring party. 3. When transferring documents in electronic media format, the transferring party makes no representations as to long term compatibility, usability, or readability of documents resulting from the use of software application packages, operating systems, or computer hardware differing from those used by the data's creator. 4. Computer Aided Design (CAD) files will not be made available to the Contractor. This includes AutoCADTM, Civil3DTM, or other similar file types. Only printed hard copies or electronic representations of hard copies (e.g. PDF) will be provided. 1.13 Permits and Licenses The Owner will pay all costs for (unless stated otherwise) and secure the following permits: • Mechanical Permit The Contractor shall acquire and pay all costs for all other necessary permits which may include: • Disposal Permit • City of Lynnwood Electrical Permit A copy of permits the Owner has acquired are available at the City WWTP office for examination by bidders. Conform to the requirements of these permits and all other permits issued for this project. Permits the Owner will acquire after the bid opening will be made available when received by the Owner. 1-2 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 2/25/22 1:16 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 1.14 Work Restrictions WWTP Operations Staff shall be in control of the plant at all times. WWTP working hours are 7:00 AM to 7:00 PM Monday through Friday. Work is permitted on Saturday with minimum 48-hours' notice with approval from the City of Lynnwood Mayor. No work is permitted on Sunday. Contractor working hours shall coincide with times when City staff are on site. There shall be no noise generated from construction equipment before 7:00 AM. If a shutdown of the aeration system is required for any portions of the improvements, the Contractor shall coordinate this shutdown with the WWTP Supervisor at least forty-eight hours in advance. 1.14.19 Use of Site The Contractor shall not perform work activities, store materials or equipment, move equipment through, or disturb in any way the areas outside the Blower Room, shown unless approved by the Owner in writing. Building construction limits may be occupied throughout the duration of the contract. 1.33 Submittals 1.33.23 Shop Drawings, Product Data, and Samples Submittals are required for all items installed on this contract. Address submittals to: RH2 Engineering, Inc. 22722 29th Drive SE, STE 210 Bothell, WA 98021 Attn: Dan Mahlum Email: dmahlum@rh2.com Submittals may be provided in electronic (PDF) format with bookmarks and entirely word searchable. Owner reserves the right to require the Bidder to provide hard -copy submittals at no additional cost to the Owner. When hard -copy submittals are provided, submit up to three (3) copies at the request of the Owner. Electronic submittal via email is acceptable, however the Contractor shall follow up with the Owner to verify that the submittal was received. The Owner assumes no responsibility for emails that do not make it to the recipient. In the case of electronic submittals, only one copy will be returned to the Contractor, either electronically or hard copy at the Owner's discretion. Submittal data shall contain sufficient information on each item to determine if it complies with the contract requirements. Submittal cutsheets and datasheets shall be annotated by the Contractor to clearly indicate the equipment and materials that will be provided, including any options or additive items. No generic cutsheets or datasheets will be accepted. Items installed in the work that have not been approved through the submittal process shall be removed and an approved product shall be furnished, all at the Contractor's expense. Shop drawing review will be limited to general design requirements only and shall not relieve the Contractor from responsibility for errors or omissions, or responsibility for consequences 1-3 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 2/25/22 1:16 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 due to deviations from the contract documents. No changes may be made in any submittal after it has been reviewed except with written notice and approval from the Owner. Shop drawings shall be submitted on 8/2-inch by 11-inch, 11-inch by 17-inch, or 22-inch by 34-inch sheets and shall contain the following information: • Project Name as it appears on the Document Cover. • Prime Contractor and Applicable Subcontractor. • RH2 Engineering. • Owner's Name (City of Lynnwood). • Applicable Specification and Drawings Reference. • A stamp or statement that the Contractor has checked the equipment for conformance with the contract requirements, coordination with other work on the job, and dimensional suitability. • A place for the Engineer to respond. (Engineer may elect to respond using the Engineer's standard forms.) Submittals that do not comply with these requirements may be returned to the Contractor for re -submittal. The Contractor shall revise and resubmit as necessary. Acceptable submittals will be reviewed as promptly as possible and transmitted to the Contractor not later than 10 working days after receipt by the Engineer. Delays caused by the need for re -submittal shall not be a basis for an extension of contract time or delay damages. Shop drawings and submittals shall contain the following information: 1. Drawings, dimensions, and weights. 2. Catalog information. 3. Model number, including descriptions for option and accessory codes. 4. Manufacturer's specifications. 5. Special handling instructions. 6. Maintenance requirements. 7. Wiring and control diagrams. S. List of contract exceptions. For integrated or package systems (see also 1.61.31), the components, shop drawings, instructions, and other elements may be submitted and reviewed individually. But the initial submittal must include the complete proposed system, and the final submittal must also be for the complete system clearly indicating all changes made during the submittal process. The Contractor warrants that they have determined and verified all field measurements, field construction criteria, materials, catalog numbers, and similar data, and have checked and coordinated each submittal with the requirements of the work and of the contract documents. 1-4 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 2/25/22 1:16 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 The Owner will pay the costs and provide review services for a first and second review of each submittal item. Additional reviews shall be paid by Contractor by deducting up to $200 for each hour of review time from the next scheduled payment. The Contractor is responsible for identifying the shop drawings and submittals required for this project. Specific submittal requirements may be listed in each section of these specifications. Contractor shall keep a complete and up to date copy of all submittals and review responses at the job site readily available to the Owner for inspection. 1.40 QUALITY REQUIREMENTS 1.42.19 Reference Standards Certain other referenced standards used in this specification are from the latest editions of: • City of Lynnwood Municipal Code • City of Lynnwood Electrical Code • IBC International Building Code • UPC Uniform Plumbing Code • IMC International Mechanical Code • IFC International Fire Code • NEC National Electrical Code • AWWA American Water Works Association • ANSI American National Standards Institute • ASA American Standards Association • ASTM American Society for Testing and Materials • WSEC Washington State Energy Code 1.60 PRODUCT REQUIREMENTS 1.61.31 Integrated (or Package) Products Products specified as integrated or packaged must be administered with a single point of responsibility from a producer who regularly furnishes such products and is qualified to address and resolve issues during submittals, fabrication, installation, commissioning, and operation. These responsibilities will not be transferred to any other party without written approval by the Engineer. Products that fall under this category may include but are not limited to the following (when specified as packaged or integrated). • Blowers 1-5 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 0 2022 RH2 Engineering Inc. 2/25/22 1:16 PM City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 1.70 EXECUTION AND CLOSEOUT REQUIREMENTS 1.75 Testing 1.75.01 General Phasing Testing of the new aeration blowers and associated equipment is intended to progress as follows: 1. Inspect, start-up and test the new turbo blower. Refer to 11.70.50.11, Part 3 regarding the Manufacturer's site visit for this purpose. 2. Inspect, start-up and test the two new screw blowers. Refer to 11.70.50.31, Part 3 regarding the Manufacturer's site visit for this purpose. 3. Once the master telemetry system is operable and capable of automatic control of all blowers, Manufacturer's shall make site visits to verify blower control and staging functions correctly and to recommend any necessary changes. This will occur no less than two weeks after all blowers have been installed as noted in 1.75.03. Two site visits total, one per type of blower as specified in 11.70.50.11, Part 3 and 11.70.50.31, Part 3, are allocated for this purpose. 1.75.02 General Testing Requirements See the Automatic Control section for control system startup. Technically qualified product representatives shall be present for the testing. All representatives shall be trained, qualified, and have experience in troubleshooting and fixing field issues. Authorized manufacturer's representatives shall be provided for the following items: • High Speed Turbo Blowers and associated electrical equipment • Rotary Screw Blowers and associated electrical equipment Additional representatives required may be identified elsewhere in these specifications. The Contractor shall arrange for all materials, supplies, and labor necessary to efficiently complete the testing. Measuring devices must be functional, accurate, legible, and scaled appropriately for the test. The Owner has the right to reject or require verification for any measuring device the Owner suspects in its accuracy. At a minimum, the Contractor shall provide: • Calibrated pressure gauge(s) (max scale of 120% to 200% of test pressure) • Voltmeter • Amp meter. • Sound Level (dB) measuring device • Vibration measuring device (inches per second and inch peak to peak) 1-6 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 0 2022 RH2 Engineering Inc. 2/25/22 1:16 PM City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 All piping shall be tested as required by specifications and applicable codes. Tests on individual items of equipment shall be as necessary to show proper system operation. During testing, the Contractor shall correct any defective work discovered. 1.75.03 Scheduling and Notification of Testing Testing and startup shall not occur on a Saturday, Sunday, Monday, Friday, on an Owner recognized holiday, or the day before or after an Owner recognized holiday unless approved in advance by the Owner. The Contractor shall conduct all testing. Testing shall not be a cause for claims for delay by the Contractor and all expenses for testing shall be incidental to this contract. Not less than 14 calendar days before the anticipated time for beginning testing, the Contractor shall notify and submit to the Owner for approval, a complete plan for the following: 1. Schedules for tests: A. High Speed Turbo Blower, including communication with City's control system and testing of VFD. B. Rotary Screw Blowers, including communication with City's control system and testing of VFD. 2. Detailed testing procedures as recommended by the equipment Manufacturers. 3. Complete schedule of events to be accomplished during testing. 4. An outline of work remaining under the contract. 5. The Contractor shall incorporate 2 weeks into his schedule for the programming and testing of the master telemetry system by others for the automated control of all new blowers. The Contractor shall provide notification two working days and two working hours (to confirm readiness) of the scheduled test(s) to the Owner confirming that the Contractor has successfully completed all preliminary testing and that all equipment, tools, materials, labor, subcontractors, manufacturer's representatives, and all other items required for witnessed testing are available and fully functional. Failure to provide advance notification and confirmation or meet any of the testing requirements will constitute a failed test in accordance with the section Inspection and Tests of the General Conditions. If testing requires downtime in order to perform repairs due to failed test, the Contractor shall pay the Owner in the amount of $200 per hour per Owner Representative on site (minimum of $400 per scheduled visit) for downtime lasting longer than 2-hours required to complete repairs to verify the complete construction is ready for startup and operation. This amount will be deducted from the appropriate bid item that relates to the finished construction and documented by the Owner at their discretion. The Contractor must have all systems pre -tested prior to calling the Owner for formal testing. Failure to provide proper notification to the Owner may lead to liquidated damages if schedule cannot be maintained. If rescheduling is required because components are not ready for testing, the notification requirements are reset as needed to provide 14 calendar days advance notice to reserve the Owner Representatives' time. 1-7 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 2/25/22 1:16 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 1.75.16.40 Electrical and Control Systems Testing See also the applicable electrical sections for electrical system testing. See also the applicable automation sections for automatic control system testing. The following is a list of components that shall be tested prior to project completion. This list is intended as a general guide and is not necessarily complete: • Pressure sensors and alarms • Local control • Automatic control • Variable speed drives 1.78 Closeout Submittals 1.78.23 Operation and Maintenance Data Failure to provide acceptable final documentation including operation and maintenance (O&M) manuals and as -built drawings will result in non-payment of the appropriate bid item in the schedule of prices. See also the Automatic Controls section for additional requirements for automatic control systems manuals. Detailed requirements for specific equipment and systems may also be included in their respective specification sections. Remove and preserve all tags and instructions that come packaged with or attached to equipment. Deliver all such documents to the Owner bound in a three-ring binder or with the O&M Manual. Insert documents in sleeves if they cannot be punched. Scan all such documents to Adobe PDF format and provide with the O&M Manual. Prior to the receipt of payment for more than 90 percent of the work, deliver to the Owner acceptable manufacturer's instructions covering equipment and systems O&M procedures, for coatings furnished under this contract, and any additional items indicated by the Owner. The operating and maintenance instructions shall include, as a minimum, the following data for each coating and equipment item: Products A. Identification including brand name, model number, and serial numbers. B. Date of manufacture and date of installation on job site. C. Complete as -built elementary wiring and one -line diagrams. D. Complete parts list, by generic title and identification number, complete with exploded views of each assembly. Maintenance A. Recommended spare parts. 1-8 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 0 2022 RH2 Engineering Inc. 2/25/22 1:16 PM City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 B. Lubrication schedule including the applicable lubricant designation available from the Standard Oil Company of California. C. Recommended preventive maintenance procedures and schedules. Schedule shall be provided for daily, weekly, monthly, quarterly, semi-annually and annually maintenance. D. Disassembly and re -assembly instructions including parts identification and a complete parts breakdown for all equipment. E. Weights of individual components of each item of equipment weighing over 50 pounds. F. Name, location, and telephone number of the nearest suppliers and spare parts warehouses. G. All manufacturers' warranties. Include name, address, and telephone number of the manufacturer's representative to be contacted for warranty, parts, or service information. H. Cleaning, repair, and maintenance instructions for each coating system. I. Provide USB flash drive or DVDs utilized in the manufacturer's instruction program. Operation A. Recommended trouble -shooting and startup procedures. B. Recommended step-by-step operating procedures. C. Emergency operation modes, if applicable. D. Normal shutdown procedures. E. Long term shutdown (mothballing) procedures. F. Equipment specifications and guaranteed performance data. G. General manuals which describe several items not in the contract will not be accepted unless all references to irrelevant equipment are neatly eradicated or blocked out. Provide 4 hard copies of O&M manuals (2 for Owner, 1 for Trane, 1 for RH2) as well as a PDF copy. A duplicate USB or DVD copy may be provided but shall not substitute for a hard copy unless approved by the Owner. Bind each set of instructions into multiple volumes; each volume to be complete with an index and bound in a suitable, hard -covered binder. Binders shall be hardback construction with full-length metal hinge. 3-inch to 5-inch width as appropriate for the quantity of O&M documentation. More than one binder may be required for large projects. Binders equal to Wilson Jones WLJ344 series or WLJ369 series or Specialty Loose Leaf models 87784, 98085, 98086, or 98984. Manuals shall be assembled and indexed so that information on each coating and piece of equipment can be readily found. The Contractor shall secure and deliver to the Owner all equipment warranties and other warranties and guarantees required for all equipment and processes. Delivery shall be done at 1-9 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 2/25/22 1:16 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 one time covering all major and minor equipment warranties. Copies of the warranties shall be included in each O&M Manual. See Division 1.43.20 for details regarding required warranties for specific components. 1.78.39 Project Record Documents Prior to receiving final payment for the work, deliver a complete set of "As -Constructed" records (also called as -built, or record plans) to the Owner. The Owner has sole discretion to determine if the records provided are legibly and accurately presented and may request revisions, which shall be provided by the Contractor at no additional cost. Records shall be made as follows or as approved by the Owner: • Yellow markings or highlights = deleted items Red markings = new or modified items Records shall be provided in PDF format. Provide "as -constructed" information on all items and work shown on the plans showing details of the finished product including dimensions, locations, outlines, changes, manufacturers, etc. The information must be in sufficient detail to allow the Owner's personnel to locate, maintain, and operate the finished product and its various components. 1.79 Demonstration and Training 1.79.10 Training See the Automatic Control section for automatic control systems training. At the time that the facility is ready to be put into operation, the Contractor is to conduct an operation and maintenance training meeting with the Owner to explain in detail the operation and maintenance requirements of each of the facility's components. The training meeting shall not occur on the same days as a startup. Operation of the facility shall commence immediately after completion of testing, startup, and training and after satisfactory repairs and adjustments have been made. 1.80 PERFORMANCE REQUIREMENTS 1.81 Facility Performance Requirements 1.81.30 Seismic Restraint and Anchorage Contractor shall furnish seismic restraint for all equipment, machinery, piping, valves, conduit, and other mechanical and electrical components. Seismic restraint shall be designed to meet IBC (ASCE 7 Chapter 13 — "Seismic Design Requirements for Nonstructural Components") code requirements. The following design values shall be used in calculating seismic forces: = 1.5 I Sds = 1.031 I Seismic Design Catevory = D A complete seismic restraint system shall be provided including struts, straps, bolts, nuts, washers, etc. as required for secure attachment to foundations, pads, ceilings, floors, and/or walls. 1-10 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 0 2022 RH2 Engineering Inc. 2/25/22 1:16 PM City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 1 Contractor shall submit either of the following in accordance with ASCE 7, 13.2.1 for all components: 1. Project -specific design and documentation prepared and submitted by a registered design professional. 2. Submittal of the manufacturer's certification that the component is seismically qualified by a. Analysis b. Testing in accordance with the alternative set forth in ASCE 7, Section 13.2.5. c. Experience data in accordance with the alternative set forth in ASCE 7, Section 13.2.6. Special Certifications are required for the following systems for Seismic Design Categories C, D, E, and F. Systems shall be certified in accordance with ASCE 7, 13.2.2. 1. Mechanical and electrical equipment that must remain operable following the design earthquake. All mechanical and electrical equipment installed under this project falls under this category. 2. Components with hazardous contents. All materials and fabrication shall be as required in these specifications. Contractor shall submit this information to the Owner for review prior to fabrication and installation. Install seismic restraints when called for in the contract or recommended by the product manufacturer. Install in accordance with the manufacturer's requirements as applicable. Seismic restraint systems shall be installed so as not to interfere with normal operations and maintenance of the equipment and other components as shown on the plans. Interference with normal operations and maintenance shall be as determined by the Owner. Drilled -in anchors for non -rotating equipment shall be Concrete Anchors unless otherwise specified. 1.81.45 Location Designations The following location designations shall be used except where otherwise noted on the plans: Dry Locations: Indoor continually dry areas including office, laboratory, blower, and electrical rooms. Wet Locations: All locations exposed to the weather, whether under a roof or not, or within channels, basins or tanks. Damp Locations: Process areas; areas containing pumps, valves, and major piping; all spaces wholly or partially underground, or having a wall or ceiling forming part of a channel or tank, unless otherwise designated on the Plans. Any areas which do not fall within the definitions for dry, wet, or corrosive shall be considered damp. Corrosive Locations: Areas where chlorine gas under pressure, sulfuric acid, or liquid polymer are stored or processed, sewer wetwells and sewer manholes. Immersed or Submerged Locations: Areas which are periodically, or continuously submerged in, or contain a liquid. \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\1 General.docx 2/25/22 1:16 PM 0 2022 RH2 Engineering Inc. Division 3 Concrete 3.00 GENERAL. Sections in these specifications titled "Common Vork for..." apply to all following subsections whether directly referenced or not. 3.05 Common Work for Concrete Part 1 - General This division covers that work necessary for furnishing and installing all concrete as described in these specifications and as shown on the Plans. References Materials shall conform to the following standards: • Cement - ASTM C150 • Coarse aggregate - ASTM C33 • Fine aggregate - ASTM C33 • Admixtures - ASTM C494 • Air -entraining admixtures — ASTM C260 Submittals Submittal information shall be provided to the Owner for the following items: • Concrete mix design including aggregate gradation and substantiating strength data. • Admixture Data • Construction Joint Plan • Concrete anchors • Concrete anchor installer certification per ACl/CRSI Adhesive Anchor Installer Certification Program. • Schedule of surface finishes • Rebar mill certifications • Rebar placement shop drawings • Schedule of form inserts • Grouts Concrete mix designs shall be submitted to the engineer for approval a minimum of two weeks prior to placing any concrete. The mix design shall include the amounts of cement, fine and coarse aggregate, water and admixtures, as well as the water cement ratio, slump, concrete yield, aggregate gradation, and substantiating strength data in accordance with ACI 318, Chapter 5. A batch plant inspection may be required, the cost of which shall be paid by the Contractor. Review of mix submittals by the engineer of record indicates only that information 3-1 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 presented conforms generally with contract documents. Contractor or supplier maintains full responsibility for specified performance. Part 2 - Products Components Nominal maximum size for aggregates is the smallest standard sieve opening through which the entire amount of aggregate is permitted to pass. Provide intermediate aggregate grades as required to achieve a well -graded mix. All concrete surfaces exposed to weather or standing water shall be air entrained. Total air content shall be in accordance with IBC requirements unless specified otherwise herein. Air shall be measured at the truck, unless otherwise agreed to. Water used in concrete shall be potable. Fly ash may be substituted for up to 15 percent of the required cement, except where noted. Mixes Concrete shall be mixed, conveyed, and proportioned in accordance with IBC section 1905. The concrete mix shall include the amount of cement, fine and coarse aggregate, including aggregate gradations, water, and admixtures as well as water cement ratio, slump, concrete yield, and sustaining strength data in accordance with these specifications, the requirements of the International Building Code Section 1905, and the requirements of ACI 318. Finishes Coat all aluminum in contact with concrete as specified. Part 3 - Execution Inspection See Statement of Special Inspections on the Drawings for special inspection requirements. Provide two (2) full working day notice to Owner prior to needing the required inspections. Also comply with local building department and permit requirements for inspection and notification. The Contractor shall repair, replace or modify, as appropriate, any items noted in the Special Inspector's inspection or the building department inspection. Testing Concrete strength tests shall be performed per section 1905.6 of the IBC and per the requirements noted herein. The Owner will provide and pay all costs of concrete testing. The Engineer shall be furnished with copies of all inspection reports and test results. Cylinders used for concrete strength tests shall be 6 by 12. Four by 8 cylinders may be used for mixes with maximum aggregates less than 1-inch, however the testing lab must apply a 0.94 multiplier to the compressive strength test results unless data acceptable to the Engineer is presented that would justify a higher multiplier. All mixes utilizing aggregates over 1 inch shall be tested using 6 by 12 cylinders. 3-2 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 When 4 by 8 cylinders are utilized AASHTO T23 requirements shall be followed, and the retainer used with neoprene pads when testing for compressive strength shall be constructed according to ASTM C1231. The Contractor will coordinate all concrete testing with the testing agency. Costs will be paid by the Owner. Give the Owner and testing agency 48-hour notice prior to concrete placement. If Contractor fails to provide the required notice, the Owner may elect to cancel the affected concrete placement. Contractor shall be responsible for costs and delays due to improper notification. If the Contractor schedules a concrete placement and does not notify the Owner and testing agency of a cancellation within 24 hours of the scheduled placement, the Contractor shall pay the testing agency costs for an unnecessary trip. If the Contractor fails to provide the testing agency with adequate notification and testing agency cannot attend concrete placement, Contractor shall reschedule placement. Contractor shall be responsible for all associated delays. The Contractor shall provide all assistance and cooperation necessary to testing personnel to obtain the required concrete tests. Contractor and Owner will have access to testing results as soon as they are available. The testing agency shall take a minimum of four samples for every 50 yards of concrete placed (and a minimum of four per pour); one for a 7-day test, two for 28-day tests, and one for backup testing in case the other two samples do not meet design strength. Additional samples may be taken to verify strength prior to form removal at the Contractor's expense. 3.10 FORMING AND ACCESSORIES 3.11 Formwork 3.11.13 Structural Cast in Place Forming Part 1— General The Contractor shall submit a construction joint plan to the Engineer for review prior to formwork and rebar installation if altered from that shown on the Plans. Modifications to the construction joints shall be submitted to the Engineer no less than 7 working days prior to placing the forms and rebar. Part 2 — Products Materials Unless otherwise directed, coat contact surface of forms with colorless, non -staining, mineral oil that is free from kerosene, or other approved suitable material, to permit satisfactory removal of forms without concrete damage. Form -release agent for interior of potable water storage structures shall be National Sanitation Foundation Standard (NSF) No. 61 approved for use in direct contact with potable water. Form construction for surfaces covered with backfill shall be made of steel, plywood, or dressed, matched lumber. Form construction for exposed surfaces shall be made of new plywood or steel without surface markings. 3-3 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 Form ties for use in liquid containment structures shall be standard plastic cone snap -ties with 3/4-inch diameter neoprene waterstop washer or removable taper ties. Use Greenstreak X- plugs with removable taper ties or equal. Contractor shall submit to the Engineer form ties to be used for review prior to installation. Part 3 - Execution Installation/ Construction Concrete forms shall be sufficiently tight to prevent leakage of concrete or mortar and shall be properly braced or tied together to maintain desired position and shape until removed. Conduits, pipes and sleeves of any material not harmful to concrete and within the limitations of ACI 318, Section 6.3 are permitted to be embedded in concrete with approval of the Engineer. Provide a 3/4-inch chamfer or radius at all exposed corners and edges, unless specifically stated otherwise on the Plans. Forms shall remain in place until the concrete has developed sufficient strength to withstand imposed loads without damage or deflection. Wall and slab forms shall remain in place for a minimum of 24 hours after completion of the pour. Forms for beams and suspended slabs shall remain in place for a minimum of 14 days AND until concrete has developed 28-day design strength, unless approved by the Engineer. The Contractor shall coordinate with the testing lab to verify concrete strength prior to form removal. Do not allow water to flow through areas where forms are to be placed. During form construction and prior to placement of concrete, keep footings and floor slab areas free of standing water. Field Quality Control Variations from plumb, specified grade, conspicuous lines, and walls shall not exceed plus or minus 1/4-inch in any 10-foot length, and shall not exceed one inch over the entire length. Variations from dimensions shall not exceed plus or minus '/2-inch. Closer tolerances shall be achieved by the Contractor as necessary to accommodate equipment and other permanent materials. 3.15.19 Concrete Anchors Part 1 - General Quality Assurance Installation of adhesive anchors shall be performed by personnel certified in accordance with the ACl/CRSI Adhesive Anchor Installer Certification Program. In lieu of certification the installer shall attend on -site training held by the adhesive manufacturer prior to the installation of adhesive anchors. Part 2 - Products Materials Concrete Anchors shall be Hilti HIT 500-V3, Simpson SET-XP, or Powers PE1000+ Adhesive Anchors. 3-4 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 CMU Anchors shall be Simpson SET-XP Adhesive Anchors. Anchorage into non -grouted, hollow masonry cells is not allowed unless specifically called out on plans. Where allowed, anchors in unreinforced masonry cells shall be Simpson SET-XP epoxy adhesive in conjunction with the Simpson Optimesh screen. Threaded rod shall be stainless steel except in dry locations. For wall mounted equipment weighing less than 250 pounds in grouted or non -grouted CMU cells, Simpson Titen-HD Screw Anchors may be used. Screw anchors may not be used for securing items subject to cyclic loads, such as walking surfaces or machinery. Part 3 - Execution Installation Install in accordance with Manufacturer's recommendations. Special Inspection in accordance with IBC, Section 17, must be provided. Provide a minimum of 48 hours' notice to Engineer prior to starting installation. Concrete anchors shall not be used to resist tension or fatigue loading without Owner's evaluation and approval. Use threaded rod or reinforcing bar as shown on the drawing, and meeting Manufacturer's recommendations. Provide minimum embedment as shown. Holes shall be drilled with carbide -tipped drill bit. Holes shall be cleaned of dust and debris. Adhesive shall be inserted with a mixing nozzle. 3.20 REINFORCING 3.21 Reinforcement Bars 3.21.11 Plain Steel Reinforcement Bars Part 1 - General References ACI — American Concrete Institute- latest edition CRSI Manual of Standard Practice — latest edition Part 2 - Products Materials Grade — ASTM A706, Grade 60 ASTM A615, Grade 60 shall be permitted if: (a) The actual yield strength based on mill tests does not exceed fy by more than 18,000 psi; and, (b) The ratio of actual tensile strength to the actual yield strength is not less than 1.25. Detailing - ACI 318 and ACI 315 Lap requirements - See schedule on Plans or as required by ACI 318 3-5 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 0 2022 RH2 Engineering Inc. 2/24/22 3:53 PM City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 Tie wire - 16 gauge minimum Bar supports shall conform to "Bar Support Specification" CRSI Manual of Standard Practice, MSP-1-80. Provide Class 1, plastic protected bar supports. Use pre -cast concrete blocks to support bars off ground. Bar supports in water holding and buried structures shall be non- metallic. Bar supports for the bottom rebar mat of suspended slabs or beams in water holding structures must be point supports (chairs or dobbies), not continuous. Part 3 - Execution Installation Reinforcing steel shall be detailed in accordance with ACI 315 and 318. Provide corner bars at all wall and footing intersections. Bend wire bar ties away from formwork to provide the same concrete clearance as shown on the Plans to the bars. Welding of reinforcing steel shall not be performed unless specifically approved by the Engineer. If approved, Contractor will arrange and pay for all required Special Inspections associated with welding of reinforcing steel. Field Quality Control Reinforcing steel shall be free of rust and loose scale at time of concrete placement. Bars with kinks, improper bends, or reduced cross-section due to any cause will not be used. Bars shall not be field bent. Bars may not be tack -welded or otherwise heated. If, within the project warranty period, rust spots appear on the concrete due to failure to achieve proper clearance on the rebar or wire ties, the Contractor shall grind out and patch the areas using a method satisfactory to the engineer. 3.30 CAST -IN -PLACE CONCRETE 3.30.05 Common Work for Cast in Place Concrete Part 1 - General Delivery Concrete shall be transported in a truck mixer to the jobsite and discharged within 1.5 hours after cement has been added to water or aggregates. Rejected concrete will be at Contractor's expense. Part 2 - Products Components If allowed, curing materials shall conform to ASTM C171 and liquid membrane -forming compounds shall conform to ASTM C309. When concrete is to be coated or stained, use UV - dissipating form release and curing compounds. 3-6 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 Part 3 - Execution Preparation Do not place concrete during rain, sleet, or snow until water and freezing protection is provided. Position embedded items accurately, and support against displacement or movement during placement. Fill voids in sleeves, insets, anchor slots, etc., temporarily with readily removable materials to prevent entry of concrete into voids. Before beginning placement of concrete, remove hardened concrete and foreign materials from inner surface of mixing and conveying equipment. Before depositing concrete, remove debris from space to be occupied by the concrete. Secure reinforcement in position to prevent movement during concrete placement. At the beginning of the concrete pour for walls taller than 8 feet, place a 11/2 to 2'/2-inch thick grout pad prior to placing the concrete for the wall. Grout mix shall consist of fine aggregates, concrete and water in the same ratios as used in the wall concrete. The placement of the concrete shall proceed immediately after the grout placement so as to prevent any cold joints. At construction joints, thoroughly clean surface of existing concrete to remove laitance. Roughen existing concrete surface to expose aggregate uniformly and apply approved bonding agent to existing concrete in accordance with manufacturer's recommendations. Prior to placing fresh concrete, dampen joint and coat with grout mixture in accordance with ACI 301, Section 8.5. Installation Placement shall be in accordance with IBC, Section 1905. Place no concrete when air temperature is below or expected to be below 40 degrees during the 28-day curing period unless a low temperature concrete mix has been approved by the Owner. Provide adequate equipment for heating materials and protecting concrete during freezing or near freezing weather. Keep materials, reinforcement, forms, and ground in contact with concrete free from frost at time of placement. Heat mixing water as required. Use no materials containing ice. Place no concrete when air temperature exceeds or is expected to exceed 85 degrees during the 28-day curing period unless a high temperature placement plan has been approved, and unless adequate precautions are taken to protect work. Cool ingredients prior to mixing. Flake ice or crushed ice of a size that will melt completely during mixing may be substituted for all or part of water. Cool forms and reinforcing prior to placing concrete. Handle concrete from mixer, ready -mixed truck, or from transporting vehicle to place of final deposit by methods which prevent separation or loss of ingredients. Under no circumstances shall concrete that has partially hardened be deposited. Place concrete in maximum lifts of 3 feet. Deposit concrete continuously so that no concrete will be deposited on concrete which has hardened sufficiently to cause formation of seams and planes of weakness within the section. If a section cannot be placed continuously, locate 3-7 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 and reinforce construction joints at points as provided for in the Plans or as approved by the Owner. Maximum concrete drop shall be 5 feet. Consolidate concrete by vibration, supplemented by hand spading, rodding, forking, or tamping. Thoroughly work concrete around reinforcement, around embedded items, and into corners of forms to eliminate air or rock pockets which may cause honeycombing, pitting, or planes of weakness. Insert and withdraw internal vibrators at points approximately 18 inches in each direction and extend into the lower concrete lifts. At each insertion, the duration shall be sufficient to consolidate the concrete; but not sufficient to cause segregation. Do not use vibrators to transport concrete within forms. Consolidate slabs by utilizing vibrating screeds, roller pipe screeds, internal vibrators, or other approved methods. Have a spare vibrator available at jobsite during concrete placing operations. After removal of forms, cut out and patch defects in concrete surfaces. Remove form tie cones. Cut or snap off form ties to a depth of 3/4-inch. Chip out rock pockets, holes from form tie removal, and other defects to solid concrete. Repair defects in accordance with 3.01.30.71. Curing See section 3.39. 3.31 Structural Concrete Part 1 - General Summary All concrete shown in the contract documents including below -grade structures, ringwalls, and all other concrete items not specifically called out otherwise. Hydraulic Concrete may be substituted. Performance Requirements 28-day compressive strength — 4,500 psi minimum 3-day compressive strength — 4,000 psi minimum Slump - Without plasticizers; 4 inches for floor and roof slabs, 7 inches for walls. With plasticizers, maximum 9 inches or as desired for placement. Use water reducers as required to achieve slump. Part 2 - Products Mixes Water/cement ratio - 0.40 maximum Nominal maximum aggregate size — 3/4-inch (AASHTO Grading No. 67) Entrained air ratio — 3.5 percent minimum to 6.5 percent maximum Entrained air ratio — 4.5 percent minimum to 7.5 percent maximum WE \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 3.35 Concrete Finishing 3.35.05 Common Work for Surface Finishing Part 2 - Products Finishes Each concrete area that requires finishing shall conform to one of the following requirements: • Equipment Pads - Floated Part 3 - Execution Preparation Do not place concrete which requires finishing until the materials, tools, and labor necessary for finishing the wet concrete are on the job and acceptable to the Owner. If rainfall is possible, tent the work area prior to the pour and maintain protection until the concrete is cured sufficiently to resist damage. 3.35.54 Floated Finish Part 3 - Execution Construction Consolidate, strike off, and level concrete; but do not work further until ready for floating. Begin floating when water sheen has disappeared and surface has stiffened sufficiently to permit floating operations. Consolidate surface with power -driven floats. Hand floating may be used if area is small or inaccessible to power units. Field Quality Control Check surface planeness during or after first floating. Cut down high spots and fill low spots to produce surface with tolerance of 1/4-inch in 10 feet in any direction. Refloat to a uniform, smooth, sandy texture immediately after leveling. 3.39 Concrete Curing Part 2 - Products Materials Curing compounds are not permitted on surfaces that will receive coatings. Part 3 - Execution Installation All concrete for structures, sidewalks, drives, curbs, shotcrete (see section 3.37), and where directed by the Owner, shall be water -cured in accordance with ACI 308.1 unless approved in advance by the Owner. If allowed, curing compound shall be applied immediately after finishing or form removal. When plastic or burlap covers are used to augment or protect curing, extend sheeting beyond the edges of the concrete and secure against wind lift. Inspect and adjust curing systems daily, including over weekends and holidays. 3-9 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 All exposed surfaces of mass concrete structures shall be cured using an approved curing compound. Curing compound shall be sprayed on the concrete surface in a uniform manner and according the manufacturer's recommendations immediately after the concrete has reached sufficient strength to support a person's weight without creating a visible footprint. 3.60 GROUTING 3.62 Non -Shrink Grouting 3.62.13 Non -Metallic Non -Shrink Grout Part 1 - General Summary Use Precision Non -Shrink Grout for grouting all equipment base plates, pipe supports, and base plates for metalwork. Precision Non -Shrink grout may also be used for all other non - shrink grouting operations. General Purpose Non -Shrink grout may be used for any applications other than those noted for Precision Non -shrink Grout. Non -shrink grout shall be used to seal all new pipe and conduit penetrations (watertight) into and out of all concrete and CMU block walled structures. Storage and Handling Stockpile grout to prevent contamination from foreign materials and store admixtures to prevent contamination or damage from excess temperature change Part 2 - Products Materials Precision Non -Shrink Grout: Provide a high -precision, fluid, non -shrink, quartz or non -catalyzed metallic aggregate grouting material. Provide a ready -to -use grout that hardens free from bleeding, settlement, or drying shrinkage when mixed, placed and cured at any consistency — fluid, flowable, plastic or damp -pack. Provide precision, non -shrink natural aggregate grout that when cured produces the following properties: A. Compressive Strength at fluid consistency (ASTM C109-Modified): 3500 psi (24 MPa) at 1 day, 7500 psi (52 MPa) at 28 days. B. Passes ASTM C1107 as a grade B grout when tested as temperature minimum and maximums of 45 degrees Fahrenheit to 90 degrees Fahrenheit (8 degrees Celsius to 32 degrees Celsius) at a working time of 30 minutes. Grout must be tested at a fluid consistency per ASTM C939 and remain fluid at temperature range minimum and maximums for the 30-minute working time. All materials including water must be mixed and tested at temperature minimum/maximums. C. Modulus of Elasticity at 28 days at fluid consistency (ASTM C469): 3.0 x 106 psi (20.7 GPa) minimum, 3.9 x 106 (27.0 GPa) maximum. 3-10 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 D. Coefficient of Thermal Expansion for fluid consistency (ASTM C531): 7.5 x 10-'/ degrees Fahrenheit maximum (13.5 x 10-'/ degrees Celsius). E. Flexural strength at 28 days for fluid consistency (ASTM C78): 1300 psi (7.9 MPa). F. Resistance to rapid freezing — thawing (ASTM C666, Procedure A): 300 cycles- min RDF 90 percent. G. Split tensile strength at 28 days at fluid consistency (ASTM C496): 450 psi (3.1 MPa). H. Pass 24-hour grout test under stated temperature, time and fluidity constraints. See MBT Protection and Repair 24-hour Grout Form. Precision non -shrink grout shall be MasterFlow 928 or 885 Grout or approved equal. General Purpose Non -Shrink Grout: General Purpose Non -shrink grout shall meet the compressive strength and nonshrink requirements of CRD-C 621, Grades B and C; Corp of Engineers Specification for Non -shrink grout; and ASTM C1107, Grades B and C. General Purpose Non -shrink grout shall be MasterFlow 713, Dayton Superior 1107 Advantage, or approved equal. Provide curing compounds as recommended by the grout manufacturer. Water to be used in mixing the grout shall be potable. Mixes Comply with grout manufacturer's recommendations for mixing procedures. Adjust water temperature to keep mixed grout temperature in the range of 45 degrees Fahrenheit (7 degrees Celsius) and 90 degrees Fahrenheit (32 degrees Celsius) minimum/maximum. Use cold or iced water to extend working time in hot weather or in large placements. Use warm water in cold conditions to achieve minimum as mixed temperatures. Part 3 - Installation Preparation Mechanically remove unsound concrete within the limits of the grout placement. Remove at least I/4-inch (6mm) of existing concrete facing and continue removal as required to expose sound aggregate. Thoroughly clean the roughened surface of dirt, loose chips, and dust. Maintain substrate in a saturated condition for 24 hours prior to grouting. Surface should be saturated surface dry at time of grouting. Clean baseplates and other metal surfaces to be grouted to obtain maximum adhesion. Remove loose rust and scale by grinding or sanding. Comply with grout manufacturer's recommendations for form construction. Construct forms to be liquid tight. 3-11 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 3 Installation Place grout mixture into prepared areas from one side to the other. Avoid placing grout from opposite sides in order to prevent voids. Work material firmly into the bottom and sides to assure good bond and to eliminate voids. Ensure that foundation and baseplate are within maximum/minimum placement temperatures. Shade foundation from summer sunlight under hot conditions. Warm foundation when foundation temperature is below 45 degrees Fahrenheit (7 degrees Celsius). Wet cure exposed shoulders for 48 hours followed by two coats of curing compound for best results. The minimal requirement is to wet cure until grout has reached final set, followed by two coats of curing compounds. 3-12 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\3 Concrete.docx 2/24/22 3:53 PM 0 2022 RH2 Engineering Inc. Division 11 Equipment 11.00 GENERAL Sections in these specifications titled "Common Vork for..." apply to all following subsections whether directly referenced or not. 11.05 Common Work for Equipment Part 1 - General Related Sections • Division 1.81.30 Seismic Restraint Requirements Submittals Provide submittal information to the Owner for the following items: • Blowers and Motors • Blower Anchor Bolts 11.70 BLOWERS 11.70.55.11- TURBO BLOWER PART 1 - GENERAL Summary This specification applies to equipment and appurtenances related to the turbo blower, including services for testing and start-up of the equipment. The blower equipment must be able to be installed in the Blower Room without significant disassembly of the blower package. There is a double door to the blower room with a limiting dimension of 65 inches in width through which the blower must pass. Minor disassembly, such as removal of normal removable panels and connections, will be allowed if required for the blower to pass into the room. The entire blower package and its components shall comply with all applicable safety and environmental regulations. This specification does not limit the responsibility of the Bidder, who is expected to supply high quality equipment. All electrical components including VFD's and control panel components shall meet the requirements of Division 16. Refer to sections 16.30 Basic Panel Equipment and Devices and 16.45 Variable Frequency Drive. Design Criteria All of the equipment specified herein is intended to be standard equipment for use in an activated sludge wastewater treatment process diffused aeration system. The turbo blower shall meet the following design criteria: 11-1 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 1. Building Finished Floor Elevation 2. Design Inlet Pressure 3. Air Source 4. Electrical Service 5. Average inlet temperature range 6. Relative humidity: 7. Quantity of Blowers: 8. Motor Horsepower: Performance Requirements 39.75 feet above sea level 14.7 psia Blower Room 480V, 3-phase 40OF to 80OF 50% 1 150 hp Each blower must meet the following performance requirements at the stated design criteria. 1. Minimum Flow: 2. Maximum Flow: 1500 SCFM at 11 PSI 2400 SUM at 12 PSI 3. Blower Package Free Feed Noise Pressure: 83 dB(A) maximum at 3 feet* *Does not include system piping noise. Blowers shall be in accordance with ISO 2151, +/- 3 dB(A) tolerance 4. The vibration level as measured at the casing, in the X/Y planes of the bearings, shall not exceed 0.3 "/sec RMS when operating at the specified operating pressure and speed. The vibration level shall be checked at start-up and documented in the field start up report. Source Quality Control Factory Blower Performance Testing and Certification: In the event that the testing specified herein fails to meet the performance requirements specified, the Manufacturer shall modify the equipment and re -test to meet the performance requirements. Equipment modifications and additional tests beyond the first test shall be borne by the Manufacturer and result in no additional cost to the City. The turbo blower shall be factory tested as followed: Blower shall be factory tested per ASME PTC-13 performance test to verify flow and wire power at minimum and maximum operating conditions. The acceptance criteria are +5% tolerance on power and -5% tolerance on flow regardless of the size of the machine. Submittals Submittal and O&M items shall be provided in accordance with Division 1. Schedule The following schedule requirements shall be met: 1. Preliminary submittal documents as required to accompany the bid proposal are due at the time of bid submission. 11-2 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 2. Full submittal package due to the City shall be provided within four (4) weeks of notice to proceed. 3. Equipment and preliminary O&M manual delivery to City WWTP shall be within twenty (20) weeks of approved submittals. 4. Final O&M manual including start-up certifications within four (4) weeks of successful start-up. Extra Materials Provide a list of typical spare parts and a typical repair schedule with the O&M manual(s). At a minimum, furnish one (1) set of spare air filter elements and one (1) set of special tools required for complete assembly or disassembly of blower system components for the type and size of blower specified, together with a neat metal box (or boxes) for the same. This tool kit shall be sufficiently complete to permit normal repair and maintenance of the turbo blower furnished under this project. PART 2 - PRODUCTS - TURBO BLOWER Manufacturers The following turbo blower manufacturer and model is selected for this project. • Aerzen AT 150-1.OS G5plus Manufactured Units The turbo blower package shall comply with UL standards, using a Nationally Recognized Testing Laboratory (NRTL), factory assembled, high speed, air foil bearing blower system. The packaged blower system shall be complete, including blower, motor, integrated variable frequency drive, control panel, programmable logic controller, inlet air filter/silencers, blow - off valve, flexible connectors and other appurtenances as specified herein, and as needed for a complete and operational system. Complete blower package shall be UL compliant, with no exception. NRTL listing nameplate to be on package exterior. NRTL listing must be for the complete package. Blowers shall be capable of variable speed operation with an integral variable frequency drive. Each blower shall be capable of operating continuously and satisfactorily at any point between the required minimum and maximum flows without any surge, vibration, hunting, or excessive heating of bearings or motor. Blowers shall be designed to operate at optimum specific speed in order to maximize adiabatic efficiency and reduce motor speed. Blower shall be designed to maintain a minimum rise to surge margin of 2.5 psig away from surge at any point in its capacity range. The blower shall be flanged to the motor housing with a labyrinth style seal between the blower unit and the motor. The blower shaft shall be supported with oil -free radial bearings. Radial bearings shall be at each shaft end and there shall be an axial bearing at the motor end. Blowers shall be of the air bearing type and shall not require oils or lubricants for adequate operation. Leaf or layered style bearings are unacceptable. The rotation of the blower shaft shall create a 11-3 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 hydrodynamic support for a bump -style bearing design. The bearings shall be coated with a Teflon coating and rated for 80,000 on/off cycles. Blower impellers shall be of the backswept three-dimensional (313) high efficiency configuration designed using Computational Fluid Dynamics (CFD) milled from forged aluminum alloy or cast stainless steel, with first lateral critical speed at least 110 percent of the maximum allowable operating speed. The impeller shall be mounted directly to the motor shaft and shall be statically and dynamically balanced. Blower shall be supplied with a sound enclosure covering the entire blower package. The sound enclosure shall be designed for easy inspection and maintenance of all blower package components. Quick release panels shall provide easy and quick access for routine maintenance of the blower and the package components. Hinged doors must be supplied for all panels heavier than 50 lbs. The blower package enclosure shall protect against falling water, condensation and dust. Electrical components, instrumentation and instrument connections shall not be mounted or interface with moving panels of the sound enclosure. The blower package shall be configured in a manner to allow heat generated by the motor and VFD to be sufficiently exhausted out of the package. All cooling shall be by air cooling and no external cooling devices, such as liquid or glycol cooling, are acceptable. Inlet cooling air shall be filtered. Components and materials shall be rated above the highest temperature they will be exposed to and be based on a blower inlet temperature of 100°F. Blower shall be supplied with built in vibration isolating mounts. The blower manufacturer shall be responsible for attenuating noise and vibration in the blower package such that no special installation base shall be required nor shall any vibration from the blower package be transmitted to the floor or intake and discharge base or the piping. The package shall be able to be able to be installed to a concrete floor, connected with concrete anchors to the feet of the blower frame. The manufacturer shall provide seismic restraint calculations per Division 1, anchorage design and include concrete anchors with the blower package. All equipment, supports, anchors and fasteners shall be of adequate strength to withstand loads associated with starting, turbulence, thrusts, thermal expansion and contraction and other loads encountered under normal operating conditions. Blower package shall include an EPDM flexible connector, shipped loose to be installed on the discharge piping by the Contractor. The flexible connector shall be sized for a standard pipe diameter of the blower discharge and shall prevent the transmission of noise and vibrations and allow for slight misalignments on the pipe work between the blower package and the piping. The flexible connector shall be suitable for the maximum operating temperature and pressure ratings of the equipment in the air stream. Blower shall be equipped with an integrated blow -off valve. Blow off valve shall not require any wiring connection in the field. The blow -off valve discharge shall be supplied with a properly sized blow -off silencer appropriate for the blow off valve design and operating conditions. Blower shall be provided with an integrated combination intake/inlet filter system for blower intake air from the Blower Room. The entire intake assembly performance losses shall be included by the manufacturer in the blower performance calculation. The intake system shall 11-4 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 be integrated into the overall blower and enclosure design and shall fit within the enclosure. Filter element shall be removable without disconnecting the inlet duct. Shipment of flexible connector, blow -off valve, blow -off silencer and discharge cone loose from the blower package is acceptable. Delivery shall be on the same day. Installation shall be by the Contractor per the Manufacturer's recommendations. A discharge check valve will be provided and installed separately by the Contractor as shown on the plans. Electrical and Controls All turbo blower electrical components shall meet Washington State Administrative Code (WAC) 296-46B Electrical safety standards, administration, and installation. Manufacturer or Manufacturer approved equipment supplier is responsible for ensuring these requirements are met. Blower shall be supplied with a high efficiency, high-speed Permanent Magnet Synchronous Motor (PMSM) driven by a variable frequency drive operating on 460/480 Volts, 3 Phase, 60 Hertz input power. Induction or Brushless DC Motors shall not be acceptable. The motor shall be compliant with UL standards. The motor shall have a 1.15 service factor. The motor shall be able to start under the starting conditions required. Blower manufacturer shall be responsible for coordinating the starting torque requirement of the blower and the motor. Certified tests shall be submitted to the City prior to shipment of the equipment. Blower motor shall have no physical connection between stator and shaft, therefore eliminating brushes, slip rings or break resistors. The PMSM must be combined with a Sine Wave Filter (Sinus Filter) if required, and passive harmonic filter. Additional requirements for the blower motor are: 1. Enclosure: TE (Totally Enclosed). 2. Insulation: Epoxy coated Class H rated to 180' C (356' F). 3. Stator Temperature monitoring: internal thermocouple embedded in motor windings with triple redundancy. 4. Maximum Ambient temperature: 110' F. 5. Minimum Ambient temperature: 20' F. 6. Duty: Continuous. 7. Standards: Conform to latest issue of IEEE, ANSI, and NEMA. 8. Grounding: There shall be a grounding lug attached to the blower scroll. Controls and Instrumentation General: 1. Blower package shall have an integral variable speed drive and controls. All components in the control panel shall be completely factory wired and shall include all necessary controls for both the manual and automatic operation as indicated in this Specification. All external control connection points (power and control connections) shall terminate on terminal blocks. The terminal strip shall have box -type connectors 11-5 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 and all terminals shall be clearly marked for easy identification. A ground terminal strip shall also be provided. At least ten (10) percent of terminals supplied shall be spare. 2. Existing incoming power provided to the panel will 480 volt, 3-phase. 3. Power shall be fed from the panel to all system equipment and appurtenances. 4. Surge protective devices (SPD) shall be provided to protect the electrical and control components from excessive voltage and current: type 1 SPD to protect the 480V loads (VFD) and type 2 SPD to protect the 120V loads (PLC controller box). The SPD locations shall be strategically selected to have surge immunity and the MCOV shall be not less than 115% of nominal voltage. Supply each VFD with a passive harmonic filter in compliance with IEEE 519. 5. Wiring shall comply with of the National Electrical Code. 6. Equipment and controls furnished by other manufacturers shall be provided in accordance with their instructions, where applicable. 7. The system shall have an Allen Bradley CompactLogix PLC -based or microprocessor (industrial CPU) based control system for the operation, adjustment and monitoring of the system equipment and appurtenances. Blower shall be equipped with the following integrated instrumentation. 1. Inlet differential pressure sensors for filter monitoring 2. Discharge differential pressure sensor 3. Inlet and discharge temperature sensors 4. Bearing temperature sensor 5. Motor temperature sensor 6. Vibration sensor Miscellaneous electrical devices: A 115 VAC to 24 VDC power supply shall be provided to power the programmable controller inputs and other 24 VDC powered devices. The use of the programmable controllers' on -board power supply for this purpose is not acceptable. The power supply shall have a 0 — 6.5-amp output rating, a voltage adjustment, LED indicator for power on, a built-in noise filter and a built in over current protection with automatic reset. 2. Provide noise filter, wide band with high attenuation (150kHz 30MHz), 2 stage filter to provide clean, noise -free power to programmable controllers. Operator Interface (provide the following indicators on the operator interface): 1. Blower Status (RUN/STOPPED) 2. Operator Mode Selection 3. System pressure display 4. Blower Local / Remote Control 11-6 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 5. Blower Speed Indication Status 6. Blower Run Times (hours) 7. Blower Amp Draw (amps) 8. System Pressure 9. System Flow Operator interface device: 1. The device shall include the following displays: a. History: displays history of sequential alarms with date and time of occurrence. b. Status: One -touch access to display current system operating status. When the system is running, the display shall show the set point pressure, actual pressure, flow and speed (0-100%). c. Alarm Information: Last alarms recorded in memory are displayed with related detailed information on the alarm including time of occurrence, date, and blower's main operating parameters at the time of alarm and how to correct the alarm condition. Each log shall include individual blower run status, VFD mode, flow and alarm type. d. Alarm List: One -touch access to an Alarm List of all possible alarms and their current status. e. Daily Log/Total: Displays the individual equipment run times and run times since last reset. f. Scroll Key: Used to scroll up and down through data. 2. Provide Setup Menu system for adjusting all alarm set points, dead band, delays, etc. Display and adjust flow and pressure set points and time delays. Set equipment alternation to manual or automatic. Set the hour of the day for automatic alternation. Restore all factory defaults. Protect adjustable settings with a password. Alarm systems: 1. Local indication of alarm conditions shall be provided on the face of the control panel via a general amber alarm light. Specific alarm messages shall be provided on the operator interface screen. 2. All alarm conditions shall be displayed at the operator Panel View 600 HMI or LS Industrial System XGT terminal and shall provide output capability to display all alarm conditions at future SCADA system. SCADA System: 1. The following outputs shall be provided to the plant PLC and SCADA system via Ethernet/IP communication: a. All alarms b. All equipment status (On/Off, In Remote/Not in Remote, Off) 11-7 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 c. All parameters displayed at the operator interface (blower PLC) d. Motor speed e. Airflow f. Discharge pressure g. Blower run: output h. Blower stop: output i. Blower fault: output j. Remote on: output, enabled when touch screen is placed in remote 2. The following inputs shall be provided from the plant PLC and SCADA system: a. Remote Command: 4-20 mA input for remote control of blower speed b. Remote start: input c. Remote stop: input d. Remote Emergency stop: input System Function: 1. Blower shall be equipped with an integrated PLC or CPU control system physically located inside the blower enclosure with the following: a. Local Control Panel (LCP) 1) Controller (PLC or CPU) with Multifunctional Display capability. 2) The LCP shall provide control, monitoring, and diagnostic capability. b. Blower controls shall provide real time monitoring via discharge pressure vs. suction air flow graph indicating current operating point and boundaries. c. Each blower shall have the ability to be controlled in four (4) different modes: constant speed, constant pressure, constant flow or dissolved oxygen. d. Blower controls shall include intuitive, user friendly fault menus for ease of monitoring diagnostics and troubleshooting. e. Each blower shall include built in automatic surge protection. f. Blower controls shall include built in measurement for the following parameters: 1) flow 2) speed 3) vibration 4) temperature 5) pressure 6) sensors with associated data display and adjustment capability for each of the above 11-8 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 g. Integrated control system shall control the blow -off valve for each blower. h. Integrated control system shall be accessible through a touch screen control panel. i. All integrated controls shall be enclosed. j. Blower PLC shall be capable for communication through Ethernet /IP communication protocol. Finishes The blower enclosure shall be painted in Manufacturer's standard color and shall be anti- corrosive. Painted cast iron and carbon steel shall be primed and coated with the manufacturer's standard coating system. Aluminum, stainless steel, and brass shall not be painted. PART 3 - EXECUTION Delivery, Storage and Handling The Manufacturer shall furnish and deliver to the City WWTP site the specified equipment complete with appurtenances. At time of delivery, the blower equipment shall be newly manufactured and in satisfactory condition without damage to the equipment during shipment. All equipment shall be completely factory assembled and the equipment, material and spare parts shall be shipped complete except where partial disassembly is required by transportation regulations or for the protection of components. All exposed flanges shall be covered and sealed with shrink-wrap to prevent entrance of moisture. Any finished iron or steel surfaces not coated shall be properly protected to prevent rust and corrosion. Spare parts shall be packed in containers bearing labels clearly designating contents and pieces of equipment for which they are intended. The Contractor will be responsible for unloading and protecting the blower equipment per the Manufacturer's recommendations for storage at the WWTP. Equipment that has been damaged prior to arrival at the WWTP shall be fixed or replaced at the cost of the Manufacturer or Manufacturer approved equipment supplier. Access to the WWTP site is restricted to weekdays during normal hours and the access road is narrow. The Contractor will schedule with the City, at least 48 hours in advance, the delivery and offloading of the blower equipment. Installation Manufacturer shall provide touch-up paint and detailed instructions for the Contractor to perform touch-up painting for all shipping damage to factory painting that is discovered at the time of equipment unloading by the Contractor. The Contractor shall install the blower equipment in accordance with the manufacturer's recommendations. 11-9 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 Field Quality Control The Contractor will schedule Manufacturer -trained personnel that are qualified for onsite installation inspection, field testing, start-up assistance and operator training upon completion of installation by the Contractor. The Manufacturer shall include in his budget (2) trips to the WWTP site for one eight (8) hour day each to perform this work. Prior to the first trip, the Manufacturer shall provide a pre -start-up checklist for the Owner and Contractor to complete prior to the Manufacturer visit. The first trip will include inspection of the installed equipment once it is capable of being operated. Once installation inspection is complete, the Manufacturer's personnel shall certify that the equipment is ready for start-up. It is anticipated that the equipment may be operated manually during this visit as master control system programming may not be completed and tested during prior to this visit. The Manufacturer's personnel shall witness start-up and field-testing of the equipment. Field-testing shall be performed for up to a four (4) hour duration over the design performance range to adjust, balance, calibrate and verify that the equipment, safety devices, controls and process system operate within the design conditions. Troubleshoot and fix unintended alarms and shutdowns. Air flow rate; discharge pressure and temperature; power draw; and vibration levels shall all be measured during field-testing. Equipment installation inspection and field- testing shall ensure that all blower package components are properly assembled and aligned, the blower operates properly, and that vibration levels are within acceptable limits. The Manufacturer's personnel shall provide operator training for City personnel. The Manufacturer's personnel shall include in his budget a second site visit to witness the equipment operation once the master telemetry system is automatically controlling the blower equipment. During this visit, the Manufacturer's personnel can also provide follow-up operator training, any necessary equipment adjustment, and potentially assist the operators with any initial maintenance procedures for the equipment. The Owner will schedule this visit at their discretion within 12 months of the equipment start-up. 11.70.55.31 ROTARY SCREW BLOWERS PART 1- GENERAL Summary This specification applies to equipment and appurtenances related to the (2) rotary screw blowers, including services for testing and start-up of the equipment. The blower equipment must be able to be installed in the Blower Room without significant disassembly of each blower package. There is a double door to the blower room with a limiting dimension of 65 inches in width through which the blowers must pass. Minor disassembly, such as removal of normal removable panels and connections, will be allowed if required for the blower to pass into the room. The entire blower package and its components shall comply with all applicable safety and environmental regulations. This specification does not limit the responsibility of the Bidder, who is expected to supply high quality equipment. 11-10 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 All electrical components including VFD's and control panel components shall meet the requirements of Division 16. Refer to sections 16.30 Basic Panel Equipment and Devices and 16.45 Variable Frequency Drive. Design Criteria All of the equipment specified herein is intended to be standard equipment for use in an activated sludge wastewater treatment process diffused aeration system. The screw blowers shall meet the following design criteria: 1. Building Finished Floor Elevation 2. Design Inlet Pressure 3. Air Source 4. Electrical Service 5. Average inlet temperature range 6. Relative humidity: 7. Quantity of Blowers: 8. Motor Horsepower: Performance Requirements 39.75 feet above sea level 14.7 psia Blower Room 480V, 3-phase 40OF to 80OF 50% 2 125 hp Each blower must meet the following performance requirements at the stated design criteria. 1. Minimum Flow: 550 SCFM at 11 PSI 2. Maximum Flow: 1750 SUM at 12 PSI 3. Blower Package Free Feed Noise Pressure: 78 dB(A) maximum at 3 feet* *Does not include system piping noise. Blowers shall be in accordance with ISO 2151, +/- 3 dB(A) tolerance 4. The vibration level as measured at the casing, in the X/Y planes of the bearings, shall not exceed 0.3 "/ sec RMS when operating at the specified operating pressure and speed. The vibration level shall be checked at start-up and documented in the field start up report. Source Quality Control All blowers and appurtenances furnished under this Section shall be furnished by a single manufacturer who is fully experienced, reputable and qualified in the manufacture of the equipment to be furnished. Manufacturer shall also provide a written warranty for the blower and blower package and shall state that they have reviewed the design and application and that the equipment has not been misapplied or the package been poorly designed. The equipment shall be designed, constructed and installed in accordance with the best practices and methods and shall operate satisfactorily when installed as shown on the Plans. \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 Factory Testing Motor tests shall be performed in accordance with American National Standards Institute, Institute of Electrical and Electronic Engineers (ANSI/IEEE) Standard 112 and ANSI C52.1. Parts 12 and 20 [National Electrical Manufactures Association (NEMA) No. MG11. Each blower block shall be factory performance tested in accordance with ISO 1217 standards to verify flow and brake horsepower at maximum operating conditions. A slip test shall not be acceptable. The acceptance criteria are +5% tolerance on power and —5% tolerance on flow regardless of the size of the machine. In the event that the testing specified herein fails to meet the performance requirements specified, the Manufacturer shall modify the equipment and re -test to meet the performance requirements. Equipment modifications and additional tests beyond the first test shall be borne by the Manufacturer and result in no additional cost to the City. Submittals Submittal and O&M items shall be provided in accordance with Division 1. Schedule The following schedule requirements shall be met: 1. Preliminary submittal documents as required to accompany the bid proposal are due at the time of bid submission. 2. Full submittal package due to the City shall be provided within four (4) weeks of notice to proceed. 3. Equipment and preliminary O&M manual delivery to City WWTP shall be within twenty (20) weeks of approved submittals. 4. Final O&M manual including start-up certifications within four (4) weeks of successful start-up. Extra Materials Provide manufacturer recommended spare parts for all items likely to be replaced in the first 5 years of operation and provide typical repair schedule with the O&M manual(s). At a minimum, provide the following for each blower provided: 1. One (1) filter element for integral inlet silencer per blower 2. Lubrication for first year of operation 3. One (1) belt set 4. Two (2) filter mats for blower control cabinet 5. One (1) tube of motor grease See Part 2 — Products for specific spare parts and special tools to be provided for each type of blower specified herein. 11-12 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 PART 2 - PRODUCTS - SCREW BLOWER Manufacturers The following screw blower manufacturer and models is selected for this project. • Aerzen D 52S Blower Manufactured Units All blower equipment in this specification shall be rotary screw type, belt driven, oil -free and skid -mounted in a sound reducing enclosure. Manufacturer shall guarantee that the blower shall provide oil -free operation and be certified to ISO 8573-1 Class Zero. The rotors shall be of one-piece construction, machined with precision tolerance, and designed to operate without rubbing or a wear -prone surface coating. Each rotor shall be of the "stiff' design with first lateral critical speed at least 120% of the maximum allowable operating speed. Open rotors are not acceptable. Rotors shall be statically and dynamically balanced per ISO1940/ANSI S2.19 G2.5. The casing shall be of one-piece construction, with separate side plates of close -grained cast iron suitably ribbed to prevent distortion under the specified operating conditions. Each impeller/shaft shall be supported by anti -friction bearings, and fixed to control the axial location of the impeller/shaft in the unit. Regardless of theoretical bearing life calculations, the bearings shall be sized for a minimum expected life of five (5) years between overhauls. The timing gears for the rotors shall have hardened and ground teeth and a minimum AGMA service factor of 1.70. The timing gears and the bearings shall be oil lubricated. Grease lubrication shall be not acceptable. An oil sight glass shall be provided on the exterior of the noise enclosure so the operator can easily view the oil level. Sight glasses inside the enclosure or that cannot be easily viewed by the operator are not acceptable. No additional oil cooler, oil pump or oil filter in the oil circuit is acceptable. All oil lines shall be industrial -quality hydraulic hose and fittings. Each blower shall receive its initial oil filling at the factory. Oil to be fully synthetic and rated for 16,000 hours of operation between change intervals. Each blower shall have one seal assembly per rotor end. Seals shall be designed to prevent lubricant from leaking into the air stream as well as to prevent oil from leaking out of the machine. The rotor shaft shall be protected by a shaft sleeve. An O-ring shall be provided under the shaft sleeve to prevent oil migration along the shaft into the air conveying chamber. Blower package shall be supplied with a sound enclosure covering the entire blower package. The enclosure shall be designed so as to be able to install multiple blowers side -by -side with all maintenance done from the front or back of the package. The base frame is to be constructed from welded carbon steel that shall be designed to maintain alignment of the blower internal components and the drive during operation. It shall be designed to resist distortion while being installed on vibration isolating mounts. Enclosure panels shall be made of galvanized steel sheet, powder coated. The enclosure and the blower package must be both mounted on a skid / oil -drip pan designed for meeting environment protection standards and for easy transportation and installation. A grounding method shall be provided by the 11-13 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 Manufacturer from the blower base and the package skid to bypass any vibration isolating mounts for grounding continuity. Quick release panels, each less than 50 lbs. must provide easy and quick access for routine maintenance of the blower and the package components. To prevent possible operator damage, electrical components, instrumentation and instrument connections shall not be mounted or interface with moving panels of the sound enclosure. A ventilation fan shall be provided for cooling the sound enclosure. The fan shall be sized for sufficient heat removal from the sound enclosure. Provide a simple 460v/60Hz feed to the controller and a built-in starter to feed power to the fan. The manufacturer shall provide wiring with the enclosure as well as a safety interlock that will shut down the main motor if the cooling fan stops operating. Components and materials shall be rated above the highest temperature they will be exposed to be based on a blower inlet temperature of 80oF. Each blower package shall be supplied with one (1) combination inlet filter and silencer. The filter media efficiency must meet the requirements of ASHRAE 52.2 MERV7 50-70% @3-10 microns corresponding to EN779 G4. The inlet filter and silencer shall be mounted directly to the inlet of the blower. The silencer portion shall be located upstream of the inlet filter. The filter element shall be designed to trap dirt on the inside so that upon changing, dirt does not fall into the machinery. Filter and silencer performance losses (clean element) shall be included in the entire package performance calculation. Blower package shall be supplied with one (1) combination base frame / discharge silencer. The silencer shall be a chamber type design for maximum sound attenuation and shall not use internally any absorption materials of any kind (fibrous or otherwise). Fabricated of a single shell of pressure vessel quality steel with continuous welds, the silencer must be subject to a pressure test for tightness and strength at a minimum of 1.65 times the maximum design pressure. The silencer shall bolt directly to the discharge flange of the rotary lobe compressor, with no intermediary or interconnecting pieces. Insulation shall be provided surrounding the discharge silencer to reduce the heat loss within the sound enclosure and keep the air temperature at the inlet of the compressor as low as possible therefore contributing to a high compression efficiency. Discharge silencer performance losses shall be included in the entire package pressure calculation. Blower package shall be provided with a flexible ANSI style discharge connector. It shall prevent the transmission of noise and vibrations from the blower package into the piping. The flexible connector shall be Proco Style FS-111 or equal, with a standard ANSI flange connection. Blower package shall be supplied with a WEG manufactured TEFC NEMA premium efficiency motor that shall operate on 460/480 Volts, 3-Phase, 60 Hertz current, 3600 RPM. The motor will be mounted on a pivoting base to provide automatic tensioning of the belts. The motor shall have a 1.15 service factor and designed for inverter duty operation with a minimum 4 to 1 turndown. The motor shall be compliant with UL standards. Manufacturer shall be responsible for coordinating the starting torque requirement of the blower and the motor. Certified tests shall be submitted to the City prior to shipment of the equipment. Should an unloading valve be required, the manufacturer shall supply it. It shall be 11-14 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 an automatic type pneumatically operated valve requiring no electrical nor compressed air connections mounted upstream of the check valve. Blower package shall be supplied with a V-belt drive that shall be of the high capacity type, oil and heat resistant. Drive shall be designed for a minimum service factor of 1.4 times operating power (BHP), or 1.1 times the motor nameplate HP, whichever is larger to allow a minimum of 1.4-service factor based on the maximum blower BHP. Belt tensioning shall be automatic without the use of any spring devices or interaction on the part of the operator. Slide rails shall not be used as a tensioning device. Sheaves shall be dynamically balanced regardless of the operating speed and hydraulically mounted on the compressor drive shaft. Blower package shall be supplied with vibration isolating feet with a minimum efficiency of 80%. The Manufacturer shall be responsible for attenuating noise and vibration in the package such that no special installation base shall be required, nor shall any additional measures be required to reduce vibrations from the package being transmitted to the base or the piping. The package shall be able to be able to be installed to a concrete floor, connected with concrete anchors to the feet of the blower frame. The manufacturer shall provide seismic restraint calculations per Division 1, anchorage design and include concrete anchors with the blower package. Anchor points shall be easily accessible. The belt drive shall be guarded in compliance with OSHA regulations. Portions of the guard shall be easily removable allowing for belt inspection and replacement. Guard material shall be perforated galvanized carbon steel. Blower package shall be supplied with a single pressure safety valve on the discharge side of the blower mounted downstream of the discharge silencer and upstream of the check valve. The safety valve shall be set to protect the machine from exceeding its maximum pressure rating, and shall be sized to pass 100% of the design flow. The valve shall be field adjustable, spring loaded, and have a certificate of conformity to PED if operating above 15 psig. If the package is supplied with a sound enclosure, the pressure safety valve shall also be housed inside and attenuated by the sound enclosure. The safety valve shall relieve hot air into a segmented and sealed section of the sound enclosure so that the hot air cannot re-enter the inlet of the machine. Blower package shall be supplied with one check valve that shall be installed on the discharge line. It shall be of the full -bore low pressure -drop, flapper type design with a steel body, and steel flap embedded in EPDM with full -contact seal. The valve shall be easily removable without disturbing the piping. Pressure losses produced by the check valve shall be included in the entire package performance calculation. Electrical and Controls All screw blower electrical components shall meet Washington State Administrative Code (WAC) 296-46B Electrical safety standards, administration, and installation. Manufacturer or Manufacturer approved equipment supplier is responsible for ensuring these requirements are met. The WWTP telemetry system will control the blower operation or will communicate to the Manufacturer -provided control panel for each blower. If a Manufacturer -provided control panel is required to control the blower and ventilation fan, the Manufacturer shall provide this 11-15 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 for each blower, either mounted on the blower equipment assembly or in a separate, wall mounted enclosure. The allocated space for control panels is shown on the preliminary Plans. The Manufacturer -provided control panels shall include associated VFDs, controls and HMI mounted to the front of the control panel facing the Blower Room and any other control equipment to fully control the blower equipment based on speed setpoints provided by the WWTP telemetry system. Installation and connections to the control panels will be made in the separate construction bid. Alternatively, the Manufacturer can provide the blower package without separate control panels. In this case, VFDs housed in separate control panel(s) and controlled by the WWTP telemetry system will be provided and installed by the Contractor in the separate construction bid package. The additional design and construction cost associated with the 2" option will be factored into this evaluated bid. PART 3 - EXECUTION Delivery, Storage and Handling The Manufacturer shall furnish and deliver to the City WWTP site the specified equipment complete with appurtenances. At time of delivery, the blower equipment shall be newly manufactured and in satisfactory condition without damage to the equipment during shipment. All equipment shall be completely factory assembled and the equipment, material and spare parts shall be shipped complete except where partial disassembly is required by transportation regulations or for the protection of components. All exposed flanges shall be covered and sealed with shrink-wrap to prevent entrance of moisture. Any finished iron or steel surfaces not coated shall be properly protected to prevent rust and corrosion. Spare parts shall be packed in containers bearing labels clearly designating contents and pieces of equipment for which they are intended. The Contractor will be responsible for unloading and protecting the blower equipment per the Manufacturer's recommendations for storage at the WWTP. Equipment that has been damaged prior to arrival at the WWTP shall be fixed or replaced at the cost of the Manufacturer or Manufacturer approved equipment supplier. Access to the WWTP site is restricted to weekdays during normal hours and the access road is narrow. The Contractor will schedule with the City, at least 48 hours in advance, the delivery and offloading of the blower equipment. Installation Manufacturer shall provide touch-up paint and detailed instructions for the Contractor to perform touch-up painting for all shipping damage to factory painting that is discovered at the time of equipment unloading by the Contractor. The Contractor shall install the blower equipment in accordance with the manufacturer's recommendations. 11-16 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 11 Field Quality Control The Contractor will schedule Manufacturer -trained personnel that are qualified for onsite installation inspection, field testing, start-up assistance and operator training upon completion of installation by the Contractor. The Manufacturer shall include in his budget (2) trips to the WWTP site for one eight (8) hour day each to perform this work. Prior to the first trip, the Manufacturer shall provide a pre -start-up checklist for the Owner and Contractor to complete prior to the Manufacturer visit. The first trip will include inspection of the installed equipment once it is capable of being operated. Once installation inspection is complete, the Manufacturer's personnel shall certify that the equipment is ready for start-up. It is anticipated that the equipment may be operated manually during this visit as master control system programming may not be completed and tested during prior to this visit. The Manufacturer's personnel shall witness start-up and field-testing of the equipment. Field-testing shall be performed for up to a four (4) hour duration over the design performance range to adjust, balance, calibrate and verify that the equipment, safety devices, controls and process system operate within the design conditions. Troubleshoot and fix unintended alarms and shutdowns. Air flow rate; discharge pressure and temperature; power draw; and vibration levels shall all be measured during field-testing. Equipment installation inspection and field- testing shall ensure that all blower package components are properly assembled and aligned, the blower operates properly, and that vibration levels are within acceptable limits. The Manufacturer's personnel shall provide operator training for City personnel. The Manufacturer's personnel shall include in his budget a second site visit to witness the equipment operation once the master telemetry system is automatically controlling the blower equipment. During this visit, the Manufacturer's personnel can also provide follow-up operator training, any necessary equipment adjustment, and potentially assist the operators with any initial maintenance procedures for the equipment. The Owner will schedule this visit at their discretion within 12 months of the equipment start-up. 11-17 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\11 Equipment.docx 2/25/22 9:39 AM 0 2022 RH2 Engineering Inc. Division 15 Mechanical 15.00 GENERAL This division covers the work necessary for furnishing and installing mechanical appurtenances and accessories as described in these Specifications and shown on the Plans. Sections in these specifications titled "Common Work for ..." shall apply to all following subsections whether directly referenced or not. 15.05 Common Work for Mechanical Part 1 - General Summary Provide the necessary piping, plumbing, fittings, and appurtenances to make all piping systems complete, tested, and ready for operation as specified herein and as shown on the Plans. Some fittings that are necessary for the complete piping system installation and operation may not have been shown. Provide fittings, pipe, and appurtenances necessary, whether shown on the Plans or not, to make all piping systems complete, tested, and ready for operation. Some pipe supports, thrust blocking, and tie rods are not shown on the Plans. Provide pipe supports, thrust blocking, and tie rods for pipes as required by accepted design criteria to support and restrain the loads encountered. Related Sections • Division 1.81.30 Seismic Restraint and Anchorage Submittals Submittal information shall be provided to the Owner for the following items: • Ductile iron pipe • Ductile iron fittings • Steel pipe and fittings • Pressure gauges • Other mechanical components listed in this division or required by the Engineer Part 2 — Products Materials All valves, meters, hydrants, specialties, appurtenances, and other such mechanical and plumbing components that are of similar purpose shall be of a single manufacturer and model line. Do not "mix and match" unless specifically stated otherwise or allowed by the Engineer. The intention of this requirement is to maintain consistency across all components installed on the project for function, maintenance, aesthetics, and details of installation. 15-1 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 Part 3 - Execution Field Quality Control Pressure gauges used for testing and commissioning shall be in good working order and scaled appropriately for the test. Scale range shall not exceed 200% of the test pressure. For example, for a 250 psi test, the gauge scale shall not exceed 500 psi. The Owner has the right to reject any gauges that are suspect in their accuracy. If any components that have been approved by the Owner are not rated for the specified system test pressure, remove or isolate those components during pressure testing in a method acceptable to the Owner. Said components must still be pressure tested in their permanent configuration at their individual test pressure rating. 15.20 PIPE AND FITTINGS 15.21 Common Work for Pipe and Fittings Part 2 - Products Components Under no circumstance shall the fasteners be of lesser strength or higher corrosive potential than the materials being connected. If dissimilar metals are adjacent (for example: stainless steel flange connecting to ductile iron flange) a dielectric insulation kit shall be used. Fasteners for pipe and fittings: Per AWWA standards unless otherwise specified. All relevant subsections of AWWA C100, C200, and C500. All bolts and studs shall be long enough so that no less than two threads extend beyond the face of the nut. Non -submerged flange bolts to be ASTM A307 Grade A, zinc plated. Finishes For conditions other than submerged, all nuts and bolts shall be zinc plated, and suitable for above and below grade locations as required. Where above grade/exposed piping is specially coated, the connecting nuts and bolts shall be coated using the same system unless directed otherwise by the Owner. Part 3 - Execution Construction All piping and related equipment to be joined shall be connected as shown on the Plans, specifications, as recommended by the manufacturer or as required by standard industry practices if not otherwise specified. 15-2 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 15.22 Metal Pipe and Fittings 15.22.02 Ductile Iron Pipe and Fittings Part 1 - General Design Requirements Ductile iron pipe shall be Class 53. Part 2 - Products Manufactured Units Aeration Air (AA) ductile iron piping and fittings: All AA piping shall be unlined (bare interior of pipe and fittings). Exposed piping and fittings shall be externally coated with high temperature epoxy primer and external coating system equal to Tnemec and shall be suitable for high temperature (275 degrees F) service with a minimum final coating thickness of 8 Mil DFT. Flanged joints shall conform to ANSI Standard B16.1. Gaskets shall be Viton. When requested, furnish certification from the manufacturer of the pipe and gasket being supplied that inspection and all of the specified tests have been made, and the results comply with requirements of this standard. Ductile Iron Fittings All fittings shall be ductile iron where possible. Ductile iron fittings shall be short -body, cement -lined. Metal thickness and manufacturing processes shall conform to applicable portions of ANSI Standards A21.20, A21.11, B16.2, and B16.4. Flanged pipe spools shall be fabricated from minimum Class 53 wall thickness pipe and conform to ANSI/AWWA C115/A21.15 with the exception that flanges shall be fabricated from ductile iron unless otherwise specified in the Contract Documents. Ductile iron flange (FL) fittings shall be in accordance with AWWA C110 and fabricated from ductile iron unless otherwise specified in the Contract Documents with a bolt pattern to match adjacent pipe. Gaskets shall be a minimum 1/8-inch thick. 15.22.05 Galvanized Steel Pipe Part 1 - General Design Requirements Galvanized steel pipe shall conform to ASTM A53/A53M. Hot dip galvanizing shall be completed in conformance with ASTM A123/A123M. Piping shall be sized as shown on the Plans and capable of the hydrostatic working and testing pressures as indicated in the pressure section above. 15-3 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 Part 2 - Products Components Wrap pipe if buried below grade. Provide dielectric couplings and bonding as shown on the Plans or as required by the Owner's standard details. Provide dielectric coupling or gasket bolt and washer kit for any connection between galvanized steel and brass, bronze or copper. 15.22.08 Brass/Bronze Pipe and Fittings Part 1 - General References Brass to be low -lead content in compliance with NSF/ANSI 372 to have no more than 0.25 percent lead content. Brass nipples: ASTM B687 Brass fittings: ANSI/ASME B16.15 (threaded) Class 125 lb. (up to 200 psi water), 250 lb. (up to 400 psi water); B16.18 (soldered). Part 2 - Products Materials Brass pipe, nipples, and fittings to have threaded ends. 15.30 VA.vEs 15.31 Common Work for Valves Part 1— General Design and Performance Requirements Valves noted on the Plans or in other parts of the Specifications shall meet the requirements herein. Valves shall be designed for the intended service. Valve suppliers shall review the design and certify that the valve provided in the submittal is appropriate for the application and will operate as shown and described. Any discrepancies from the design and the valves shall be brought to the Engineer's attention during the bidding process. Valves that do not operate as specified and per normal industry standards shall be replaced or modified so that they operate within the design parameters at the Contractor's expense. Part 2 — Products Components If shear pins are installed with any valve, the manufacturer shall certify the shear pin(s) to fail between 95 to 99 percent of the operator shaft failure torque. Provide concrete supports for operators where required, as shown on the Plans. Buried valves shall be equipped with an AWWA 2-inch wrench nut with a minimum of 10 turns required to close the valve, unless otherwise noted on the Plans. Exposed valves shall 15-4 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 be equipped with lever actuator for valves 3 inches and smaller, or handwheel actuator for valves 4 inches and larger, unless otherwise noted on Plans. Valves located at elevations higher than 6 feet above the finished floor shall be equipped with chainwheel operator. Part 3 - Execution Installation Install valves in strict accordance with the manufacturer's instructions and as shown on the Plans. Verify alignment and adjustments after installation. 15.32 Isolation Valves 15.32.03 Butterfly Valves Class 150 Part 1— General Design Requirements Butterfly valves shall be tight -closing rubber seat type with a minimum 150 psi working pressure rating. Valves 3-inch and larger must meet full requirements of AWWA Standard C504. Valve components shall withstand an operator input torque of 300 foot-pounds without damage. Part 2 — Products Manufacturers • Dezurik BAW Manufactured Units Three-inch and larger valve bodies shall be cast iron ASTM A-126 Class B or ductile iron. Provide valve disc constructed of cast iron ASTM A48 Class 40, cast iron ASTM A126 Class C, or ductile iron ASTM 536 Grade 65-45-12. The disc seating edge shall be solid stainless steel. Sprayed mating seat surfaces are not acceptable. The seat shall be appropriate for aeration service to 275 degrees F. Valve bearings shall be sleeve -type and corrosion -resistant. Valve bearings shall be of traveling nut type and shall open left. Supply valves with the valve operator on the side of the valve shown on the Plans. Provide fusion bonded epoxy or two-part liquid epoxy coating to all internal and external surfaces suitable for service at 275 degrees F. Part 3 — Execution Installation Install per manufacturer's instructions. If the disc does not operate freely, install valve spacers to provide clearance. Beveling the interior of the pipe will only be allowed if approved by the Engineer. All butterfly valves shall be test operated in the presence of the Owner's representative to prove full open and closing capability. Testing procedure: Close the valve prior to applying 15-5 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 test pressure. Do not operate the valve under test pressure. Bleed off pressure to below the working pressure rating prior to operating the valve. 15.40 PIPING SPECIALTIES 15.40.03 Pipe, Valve, and Conduit Supports Part 1 - General Summary This section includes providing pipe supports, hangers, guides, and anchors. Related Sections • Division 1.81.30 Seismic Restraint • Division 5.05.23 Bolts and other Connectors References Pipe supports furnished under this section shall comply in all respects with the requirements of the following standards. • ANSI/ASME B31.1 • ANSI/MSS SP-58 Manufacture • ANSI/MSS SP-69 Performance Standards Power Piping Pipe Hangers and Supports - Materials, Design and Pipe Hangers and Supports - Selection and Application Piping systems, including connections to equipment, shall be properly supported to prevent deflection and stresses. Supports shall comply with ANSI/ASME B31.1, except as otherwise indicated. Size hanger rods, supports, clamps, anchors, brackets, and guides in accordance with ANSI/MSS SP 58 and SP 69. Support plumbing drainage and vents in accordance with the Uniform Plumbing Code. Submittals Pipe Hanger/Support Design Calculations Shop drawings of engineered pipe hangers/supports, including details of concrete inserts. Drawings shall include location plan showing location of the hanger/support in relation to the structure and/or equipment. Part 2 — Products Manufacturers Pipe supports, hangers, guides, and anchors shall be Anvil, Unistrut, Tolco, Standon, or equal. 15-6 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 Flange supports shall be equal to Standon Adjustable Model S89 Flange Support. Pipe supports shall be equal to Standon Adjustable Model S92 Pipe Support. Both flange and pipe supports shall be equal to those manufactured by Material Resources, Hillsboro, Oregon. Components Provide and install all equipment necessary for compete support systems including, but not limited to, base, riser pipe, anchor bolts, hanger rod, support cradle or clamp, and fasteners. Except as otherwise noted, pipe support components shall comply with the types in ANSI/MSS SP-58. Engineered Supports: Pipe hangers, supports for piping and conduits (raceways), and all spring support assemblies shall be completely engineered. Heat Transmission: Supports, hangers, anchors, and guides shall be designed and insulated so that excessive heat shall not be transmitted to the structure or other equipment. Freestanding Piping: Freestanding pipe connections to equipment, including chemical feeders and pumps, shall be firmly attached to fabricated steel frames made of angles, channels or I - beams anchored to the structure. Exterior, freestanding overhead piping shall be supported on fabricated pipe stands, consisting of pipe columns anchored to concrete footings, with horizontal, welded steel angles, and U-bolts or clamps installed to secure piping. Noise Reduction: To reduce noise transmissions in the piping systems, copper tubes shall be wrapped with a 2-inch-wide strip of rubber fabric at each pipe support, bracket, clip, and hanger. Finishes Unless otherwise noted, all fabricated pipe supports shall be blast -cleaned after fabrication and hot -dip galvanized in accordance with ASTM 123. Part 3 - Execution Installation Piping shall be rigidly anchored to walls, slabs, and ceilings by means of suitable pipe supports, wall brackets, or pipe hangers. Pipe supports, hangers, brackets, anchors, guides, and inserts shall be installed in accordance with the manufacturer's installation instructions and ANSI/ASME B31.1. All concrete inserts for pipe hangers and supports shall be coordinated with the formwork. Stand -on Pipe Support: Adjust support, secure to pipe and secure to floor as recommended by the manufacturer. Riser Supports: Risers shall be supported on each floor with riser clamps and lugs, independent of the connected horizontal piping. Support Spacing: Pipe supports shall be placed to meet the following maximum spacing, unless otherwise noted or shown on the Plans: maximum vertical support spacing of 5 feet, and maximum horizontal support spacing of 10 feet. Support shall be provided at horizontal bends, base of risers (vertical bends), floor penetrations, connections to pumps, blowers, and other equipment, valves and appurtenances. Support spacing shall meet the local plumbing 15-7 J:\Data\Txane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 code where applicable. Support spacing may be increased from that noted above provided adequate calculations are provided supporting the change. Support Anchorage: Concrete anchors shall be as specified in Division 3, Concrete Anchors. All channel strut type supports shall have a minimum of 2 anchors per support. Suspend pipe hangers from hanger rods, secure with double nuts. Securely anchor plastic pipe, valves and headers to prevent movement during operation of valves. Anchor plastic pipe between expansion loops and direction changes to prevent axial movement through anchors. Provide ductile iron elbows or tees supported from floors with base fittings. Support base fittings with metal supports, or when indicated on the Plans, concrete piers. Do not use chains, plumbers' straps, wire, or similar devices for suspending, supporting or restraining pipes. Install riser clamps at floor penetrations and where indicated on the Plans. Field Quality Control Pipe supports and hangers shall be positioned in such a way as to produce an orderly, neat piping system. All hanger rods shall be vertical, without offsets. Hangers shall be adjusted to line up groups of pipes at the proper grade for drainage and venting, as close to ceilings or roofs as possible, without interference with other work. Properly support, suspend or anchor exposed pipe, fittings, valves and appurtenances to prevent sagging, overstressing or movement of piping and to prevent thrusts or loads on or against connected pumps, blowers or other equipment. 15.40.04 Dielectric Fittings and Adapters Part 2 — Products Dielectric Isolating (Insulating) Flange Joints Flange insulation shall include a full -face insulating gasket, a full-length insulating sleeve for each bolt, and two insulating washers and two steel bearing washers for each flange bolt. Sleeves and Dashers Insulating sleeves and washers shall be Pyrox G-10. Both the insulating washers and the steel washers shall fit over the outside diameter of the sleeve and shall fit within the bolt facing of the flange. Gaskets Gaskets shall be full faced Styrene Butadiene Rubber (SBR), Nitrile (Buna-N), Neoprene, polytetrafluoroethylene (PTFE), or compressed vegetable fiber. Gaskets shall have adequate dielectric properties, 200V/mil minimum, and shall be suitable for the operating and test pressures of the pipe system. Gaskets shall NSF-61 approved. No hard rigid gasket (e.g. phenolic or epoxy -fiberglass (G-10)), even if full-faced elastomeric coated (e.g. neoprene - coated phenolic) or with elastomeric sealing element such as an O-ring or flat band. 15-8 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 For gaskets used at ductile iron pipe flange joints, provide American Toruseal Flange Gasket (yellow only) has sufficient dielectric characteristics to meet the 200V/mil minimum requirement. Dielectric Isolation Joint Assembly An insulating joint assembly shall consist of 2 flange by plain end or 2 flange by mechanical joint (FLG x PE or FLG x MJ) adapters, a full face insulating gasket, with full length insulating sleeves, 2 insulating washers, and 2 steel bearing washers for each flange bolt. Flange Connection Submittals for flange connections shall address suitability of gasket, bolts, washers, nuts, and flange characteristics for the specified pipe type and pressure, considering gasket compression, bolt strength, and required torque. Part 3 - Execution Installation Provide dielectric adapters between dissimilar types of metal pipes, valves and fittings (e.g. copper to stainless steel). Flange isolating kits shall be used when dissimilar metal flanged pipe is connected. The following connections do NOT require dielectric isolators. Metal Connecting to Bronze/brass Copper or ductile iron Ductile iron Mild steel, bronze or brass 15.60 PRESSURE MEASUREMENT 15.60.01 Common Work for Pressure Measurement Part 1— General Related Sections Design Requirements Pressure and level measurement devices shall be scaled and rated for the application. Part 3 — Execution Installation All devices shall be installed to be field serviceable without taking the facility out of service. Readouts shall be positioned to be easily read from a standing position and central to the room, unless otherwise allowed by the Engineer. 15-9 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 15.61 Pressure Gauges Part 1— General References • ASME B40.100 (B40.1 Analog, B40.7 Digital) Performance Requirements Analog: Grade 2A (±0.5 percent of span) unless stated otherwise in the Products section. Digital: Grade 2A (±0.5 percent of span) or AR (±1 percent of reading) unless stated otherwise in the Products section. Submittals Provide catalog sheets showing dimensions, pressure range, accuracy and optional accessories. Part 2 — Products Manufacturers Marsh, 3D Instruments, or approved equal. Materials Provide gauges per the table below. Gauges completely suitable for measuring potable water with wetted parts of brass, bronze, or stainless steel. Turbo/Screw Blower Screw Blower 1 Location 2 Combined Discharge Discharge Full Scale 0-30 psi 0-30 psi Normal Operating 10-15 psi 10-15 psi Range Analog or Analog Analog Digital Surface or Stem Stem Stem Mount Connection 0.25" or 0.5" 0.25" or 0.5" Size Accuracy Grade See Per£ Req'ts See Per£ Req'ts Glycerin fill Glycerin Glycerin or Dry Face Size 4.5" 4.5" 2.5" or 4.5" 15-10 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blower Upgrades Division 15 For pressure gauges used in applications other than clean water, provide a diaphragm protector suitable for the contact fluid. Diaphragm equal to Marsh 13040, stainless steel with flushing port. Part 3 - Execution Installation Install gauges where shown on the Plans. Support gauges adequately. Tighten only with the connection hex nut, do not twist the case. Field Quality Control Where a new gauge is connected directly to the plumbing of a pressure transmitter, the gauge must read within its accuracy grade compared to the transmitter, unless the transmitter is proven faulty. If the Engineer suspects any gauge is inaccurate, provide a calibrated gauge for comparison, or other method of verification acceptable to the Engineer. Replace or calibrate gauges that do not meet the accuracy requirements. 15-11 J:\Data\Trane\21-0305\30 Specs\Technicals\15 Mechanical.docx 2/25/22 3:14 PM 0 2022 RH2 Engineering Inc. Division 16 Electrical 16.00 GENERAL The Contractor shall provide all labor, material, tools, equipment and services required to complete the furnishing, installation, wiring, connection, calibration, adjustment, testing and operation of all electrical equipment, devices and components as indicated and implied by the plans and specifications. Sections in these specifications titled "Common Wlork for..." shall apply to all following sections whether directly referenced or not. The Contractor shall reference Division 1.25 regarding substitutes and "or -equals". 16.05 Common Work for Electrical Part 1 - General Summary Plans are diagrammatic and indicate general arrangements of systems and equipment, except when specifically, dimensioned or detailed. The intention of the plans is to show size, capacity, approximated location, direction and general relationship of one work phase to another, but not exact detail or arrangement. Regulatory Requirements The Contractor shall coordinate and provide all permits, licenses, approvals, inspections by the authority having jurisdiction and other arrangements for work on this project and all fees shall be paid for by the Contractor. The Contractor shall include these fees in the bid price. Related Sections See the following sections for items that may be provided and/or installed with other electrical equipment. • Division 11.70 Blowers • Division 17 Automatic Control Codes and Standards Provide all electrical work in accordance with latest edition of National Electrical Code, National Electrical Safety Code, Washington State Electrical, and local ordinances. If any conflict occurs between government adopted code rules and these specifications, the codes are to govern. All electrical products shall bear a label from a certified testing laboratory recognized by the State of Washington. Recognized labels in the State of Washington are UL, ETL, and CSA-US. Definitions Dry Locations: All those indoor areas which do not fall within the definitions below for wet, damp, or corrosive locations and which are not otherwise designated on the Plans. 16-1 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Wet Locations: All locations exposed to the weather, whether under a roof or not, unless otherwise designated on the Plans. Design Requirements Unless otherwise noted, provide enclosures as follows: 1. Indoors Unclassified Locations: NEMA Type 12 2. Electrical Rooms: NEMA Type 1 Submittals Provide submittals of each item specified in this division to engineer for approval in accordance with Division 1 of these specifications. Submittals for motor control centers, motor control panels, control panels, instrumentation panels, and pump control panels shall include at a minimum: a wiring diagram or connection schematic, and an interconnection diagram. Wiring Diagram or Connection Schematic 1. Include all devices in a system and show their physical relationship to each other including terminals and interconnecting wiring in assembly. This diagram shall be in a form showing interconnecting wiring only by terminal designations (wireless diagram). Interconnection Diagram Show all external connections between terminals of equipment and outside points, such as motors and auxiliary devices. Show references to all connection diagrams which interface to the interconnection diagrams. Interconnection diagrams shall be of the continuous line type. Show bundled wires on a single line with the direction of entry/exit of the individual wires clearly shown. Identify all devices and equipment. Show terminal blocks as actually installed and identified in the equipment complete with individual terminal identification. All jumpers, shielding and grounding termination details not shown on the equipment connection diagrams shall be shown on the interconnection diagrams. Show spare wires and cables. Provide submittal information for the following items: 1. Circuit Breakers 2. Variable Frequency Drives 3. Basic Panel Equipment and Devices 4. Conduit and Fittings 5. Outlet and Junction Boxes 6. Wire and Cables 7. Other Electrical Components listed in this Division and/or required by the Engineer. 16-2 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Project Conditions Contractor shall keep all power shutdown periods to a minimum. Carry out shutdowns only after a shutdown schedule has been submitted and approved by both the Owner and the Engineer. Construction Power See Division 1.51 Part 2 - Products Source Quality Control Provide adequate space and fit for the electrical installation, including, but not limited to, determination of access -ways and doorways, shipping sections, wall and floor space, and space occupied by mechanical equipment. Provide electrical equipment that fits in the areas shown on the Plans. All equipment shall be readily accessible for maintenance, shall have electrical clearances in accordance with National Electric Code (NEC) and shall be installed in locations which will provide adequate cooling. Do not use equipment exceeding dimensions indicated or equipment or arrangements that reduce required clearances or exceed specified maximum dimensions unless approved by the Owner. Identification of Listed Products Electrical equipment and materials shall be listed for the purpose for which they are to be used, by an independent testing laboratory. When a product is not available with a testing laboratory listing for the purpose for which it is to serve, the inspection authority may require the product to undergo a special inspection at the manufacturer's place of assembly. All costs and expenses incurred for such inspections shall be included in the original contract price. Materials Use equipment, materials and wiring methods suitable for the types of locations in which they will be located, as defined in Definitions above. All materials and equipment specified herein shall, within the scope of UL Examination Services, be approved by the Underwriter's Laboratories for the purpose for which they are used and shall bear the UL label. Components Fasteners for securing equipment to walls, floors, and the like shall be either hot -dip galvanized after fabrication or stainless steel. Provide stainless steel fasteners in corrosive locations. When fastening to existing walls, floors, and the like, provide capsule anchors, not expansion shields. Size capsule anchors to meet load requirements. Minimum size capsule anchor bolt is %-inch. Accessories Wire Identification 1. Identify each wire or cable at each termination and in each pull -box using numbered and lettered wire markers. All electrically common conductors shall have the same number. 16-3 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Each electrically different conductor shall be uniquely numbered. Identify panelboard circuits using the panelboard identification and circuit number. Identify motor control circuits using the equipment identification number assigned to the control unit by the motor control center manufacturer and the motor control unit terminal number. Identify other circuits as approved by the Engineer. Identify each wire or cable in each pull -box with plastic sleeves having permanent markings. Conductors between terminals of different numbers shall have both terminal numbers shown at each conductor end. The terminal number closest to the end of the wire shall be the same as the terminal number. Finishes Refer to each electrical equipment section of these specifications for painting requirements of equipment enclosures. Part 3 - Execution Installation General 1. Complete the wiring, connection, adjustment, calibration, testing and operation of mechanical equipment having electrical motors and/or built-in or furnished electrical components in accordance with electrical code, UL listing requirements and manufacturer's instructions. Install electrical components that are furnished with mechanical equipment. 2. Provide the size, type and rating of motor control devices, equipment and wiring necessary to match the ratings of motors furnished with mechanical equipment. 3. Complete the procurement, installation, wiring, connection, calibration, adjustment, testing and operation of all electrical devices, components accessories and equipment which is not shown or specified but which is nonetheless required to make the systems shown and specified properly functional. Workmanship 1. Assign a qualified representative who shall supervise the electrical construction work from beginning to completion and final acceptance. 2. Provide all labor using qualified craftsmen, who have had experience on similar projects. 3. Ensure that all equipment and materials fit properly in their installations. Field Services 1. Provide field services of qualified technicians to supervise and check out the installation of the equipment, to supervise and check out interconnecting wiring, to conduct start-up and operation of the equipment, and to correct any problems which occur during testing and start-up. Installing Equipment 1. Provide the required inserts, bolts and anchors, and securely attach all equipment and materials to their supports. 16-4 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 2. Install all floor -mounted equipment on 3/2-inch high reinforced concrete pads. 3. Install all equipment and junction boxes to permit easy access for normal maintenance. Cutting, Drilling, and Welding Provide any cutting, drilling, and welding that is required for the electrical construction work. 2. Structural members shall not be cut or drilled, except when approved by the Engineer. Use a core drill wherever it is necessary to drill through concrete or masonry. Perform patch work with the same materials as the surrounding area and finish to match. Metal Panels Mount all metal panels, which are mounted on, or abutting concrete walls in damp locations or any outside walls '/4-inch from the wall and paint the back side of the panels with a high build epoxy primer with the exception of stainless -steel panels. Film thickness shall be 10 Mils minimum. Field Quality Control Minor Deviations 1. The electrical plans are diagrammatic in nature and the location of devices, fixtures, and equipment is approximate unless dimensioned. Based on this, the right is reserved by the owner to provide for minor adjustments and deviations from the locations shown on the Plans without any extra cost. Deviations from the Plans and/or specifications required by code shall also be done, subsequent to Owner's approval, without extra cost. 2. Plans indicate the general location and number of the electrical equipment items. When raceway, boxes, and ground connections are shown, they are shown diagrammatically only and indicate the general character and approximate location. Layout does not necessarily show the total number of raceways or boxes for the circuits required. Furnish, install, and place in satisfactory condition all raceways, boxes, conductors, and connections, and all of the materials required for the electrical systems shown or noted in the contract documents complete, fully operational, and fully tested upon the completion of the project. Project Record Plans 1. A set of Plans shall be maintained at the job site showing any deviations in the electrical systems from the original design. A set of electrical Plans, marked in red to indicate the routing of concealed conduit runs and any deviations from the original design, shall be submitted to the Owner for review prior to final acceptance. 2. After testing and acceptance of the project the Contractor shall furnish in the O&M manuals an accurate connection schematic and interconnection diagram for every service entrance panel, pump control panel, motor control center, and instrumentation panel provided this project. Cleanup and Equipment Protection Equipment Protection 16-5 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 1. Always exercise care after installation of equipment, motor control centers, control panels, etc., to keep out foreign matter, dust debris, and moisture. Use protective sheet metal covers, canvas, heat lamps, etc., as needed to ensure equipment protection. Cleaning Equipment 1. Thoroughly clean all soiled surfaces of installed equipment and materials upon completion of the project. Clean out and vacuum all construction debris from the bottom of all equipment enclosures. Pasnttn� 1. Repaint any electrical equipment or materials scratched or marred in shipment or installation, using paint furnished by the equipment manufacturer. Final Cleanup 1. Upon completion of the electrical work, remove all surplus materials, rubbish, and debris that accumulated during the construction work. Leave the entire area neat, clean and acceptable to the Owner. 2. Lamps and fluorescent tubes shall be cleaned, and defective units replaced at the time of final acceptance. 16.30 BASIC PANEL EQUIPMENT AND DEVICES 16.31 Operating and Indicating Devices Part 1 - General Operating and indicating devices minimum rating shall be NEMA 13. Operator devices mounted in outdoor panels, corrosive areas or where exposed to moisture shall be NEMA 4X. 16.31.4 Indicating Lights Manufacturers Heavy -Duty, Watertight, and Corrosion -Resistant Type: • Eaton/Cutler-Hammer, Type E34 • Square D Co., Type SK • Allen Bradley, Type 800H • General Electric Co., Type CR 104P Manufactured Units Indicating lights shall be NEMA type 4/4X/13, corrosion resistant, water -tight, oil -tight, full voltage, push -to -test, high visibility 28 chips LED type. Pilot lights shall be rated for the proper operating voltage. Appropriate lens caps shall be provided as shown on Plans. 16-6 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 16.31.5 Selector Switch Manufacturers Heave -Duty, Watertight, and Corrosion -Resistant Type: • Eaton/Cutler-Hammer, Type E34 • Square D Co., Type SK • Allen Bradley, Type 800H • General Electric Co., Type CR 104P Manufactured Units Selector switches shall be NEMA type 4/4X/13, corrosion-resistant/watertight/oil-tight, type selector switches with contacts rated for 10 amperes continuous at proper operating voltage. Operators shall be black knob type. Units shall have the number of positions and contact arrangements and spring return function (if any) as shown on Plans. Units shall be single -hole mounting, accommodating panel thicknesses from '/16-inch minimums to '/4-inch maximum. 16.31.6 Pushbuttons Manufacturers Heavy -Duty, Watertight, and Corrosion -Resistant Type: • Eaton/Cutler-Hammer, Type E34 • Square D Co., Type SK • Allen Bradley, Type 800H • General Electric Co., Type CR 104P Manufactured Units Pushbuttons shall be NEMA type 4/4X/13, corrosion-resistant/watertight/oil-tight, type push buttons with momentary contacts rated for 10-ampere continuous at proper operating voltage. Button color shall be as specified in control panels and shall have a full guard. Pushbutton contact arrangements shall be as shown on Plans. Size of pushbuttons as indicated on the Plans. Special Functions Pushbutton for "emergency stop" applications shall have maintained contacts and red mushroom head operators. 16-7 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 16.32 Panel Relays Part 1— General General Relays shall be provided as necessary to perform switching functions required of control panels and other control circuits as shown on the Plans and described in the technical specifications. Appropriate relay type and associated contacts shall be selected based on the application from the control wiring diagrams or the functional description. Where timing relays and control relays require additional contacts, provide auxiliary control relays properly sized for the application. All contacts and relays shall be NENIA rated and UL recognized. The electrical life expectancy for the relay shall be over 500,000 operations at 120V AC, 10 amp; (over 200,000 operations at 120V AC, 10 amp for SPDT, 3PDT, and 4PDT). The mechanical life expectancy for the relay shall be over 50,000,000 operations. 16.32.1 Control Relays Manufacturers • Square D Class 8501, Type K or R • Allen Bradley 700 Type HA or HB • IDEC RH Series; or equal Manufactured Units Relays for general purpose use shall be DPDT or 3PDT,10-amp contacts with the appropriate coil voltage for the application. Relays shall be plug-in type with matching socket. All relays shall have LED indicators to signal when the coil is energized. Relay coils shall be rated for continuous duty. 16.32.3 Time Delay Relays Manufacturers • Allen-Bradley 700 Type HR • IDEC GE1, RTE or GT3 Series; or equal Manufactured Units Time delay relays shall be multi -function, multi -range with plug-in base, pin style terminations timing and timed out LED indicators, and calibrated scales. Relays shall have minimum 0.5 seconds to 60 minutes, 8 selectable timing ranges, 5-amp contacts. Select coil voltage for the application. Units shall be sealed to prevent entry of contamination in the form of dust, dirt, or moisture. Appropriate relay shall be selected based on application from the control wiring diagrams. Minimum accuracy (plus or minus) shall be as follows: 16-8 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 1. Repeat accuracy —'/2 percent. 2. Timing change over full voltage range —'/2 percent change over full temperature range. 3. Scale tolerance — 5-percent. 16.35 Control Panel Accessories 16.35.1 Terminal Blocks Part 2 — Products Manufactured Units Terminal blocks shall be one-piece, molded, plastic blocks with screw -type terminals and barriers rated for 600 volts. Terminals shall be double -sided and supplied with removable covers to prevent accidental contact with live circuits. Terminals shall have permanent, legible identification, clearly visible with the protection cover removed. Part 3 — Execution Installation All wires between panel -mounted equipment and other equipment shall be terminated at terminal blocks. Switches shall be terminated at the terminal blocks with crimp -type, pre -insulated, ring -tongue lugs. Lugs shall be of the appropriate size for their terminal block screws and for the number and size of the wires terminated. All wires shall be labeled with the circuit number and common function. 16.35.2 Nameplates Part 2 — Products Manufactured Units Standard nameplates shall be made of '/, -inch thick machine engraved laminated phenolic having black letters not less than 3/16-inch high on white background. One -inch high lettering shall be used for the large nameplates required for the control panels and motor control centers. Part 3 — Execution Installation Nameplates shall be provided on all electrical devices including but not limited to motor control equipment, MCC cubicles, control stations, junction boxes, panels, motors, instruments, switches, indicating lights, meters, and all electrical equipment enclosures. Each motor control center compartment and control panel shall have a nameplate designating the equipment and its identifying number and size or rating. Data shall be as shown on the Plans and reviewed via the submittal process. Nameplates shall have name, number and/or function as is applicable for clear identification. 16-9 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Provide one large nameplate for each motor control center and/or control panel identifying the equipment as indicated on the Plans. Nameplates on steel panels shall be secured with stainless steel drive screws. Where it is proposed that nameplates will be secured with pressure sensitive tape or bonding cement, the process and samples shall be submitted to the Engineer for acceptance. Nameplates shall be provided for identifying all operator interface (lights, switches, etc.) and other devices that are located outside or inside the panels. Nameplates shall be provided for identifying all relays and devices that are located inside the panels. Special Functions Provide warning nameplates on all panels and equipment, which contain multiple power sources. Lettering shall be white on red background. 16.40 LOW VOLTAGE MOTOR CONTROL EQUIPMENT 16.41.1 Motor Control Center Part 1 - General Description of Work The electrical contractor shall furnish and install the motor control center modifications including all related equipment as shown on the Plans and specified herein. Related Sections • Division 16.30 Basic Panel Equipment and Devices References The equipment shall be constructed to meet or exceed the requirements within NEMA ICS3-322 and UL845 for motor control centers. Each MCC section shall bear the UL label. Coordination The contractor shall coordinate with the manufacturer of the existing motor control center to replace the motor control center buckets with the proposed equipment shown on the Plans. The UL listing the motor control center shall remain intact either by pre -fabrication of the equipment, or field inspections by a Washington State recognized agency. Design Requirements The equipment shown on the Plans shall either be installed by the Contractor or pre -fabricated by the motor control center manufacturer for installation by the Contractor. Submittals Provide submittals for all components. 16-10 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Part 2 — Products Manufacturers The existing equipment is a General Electric 8000 Motor Control Center. All motor control center parts shall be provided by the original manufacturer. Contractor shall field -verify equipment dimensions and construction and coordinate with manufacturer as needed. Finishes Surfaces shall be painted according to the manufacturer's standard color scheme. All unpainted parts shall be plated for resistance to corrosion. Components Vertical Sections 1. Each vertical section shall be approximately 90 inches high and 20 inches deep. Vertical sections shall have internal base mounting angles at the bottom and external lifting angles at the top running continuously within each shipping block. 2. To minimize the chance of fault propagation to adjacent sections, each vertical section shall have side sheets extending the full height and depth of the section. Unit Disconnect Operator Mechanism 1. A door -mounted operator mechanism shall be provided for operating all feeder breakers provided with the MCC. The operator shall extend through an opening in the unit door and shall clearly indicate whether the disconnect is ON, OFF, or TRIPPED. 2. With the disconnect in the ON position, a mechanical interlock shall prevent opening of the unit door. This interlock shall be provided with a defeater so that authorized personnel may gain access to the compartment without interrupting service. 3. The operator mechanism design shall allow padlocking the disconnect in the OFF position with up to four padlocks. 16.45 Variable Frequency Drive Part 1 - General Summary The Variable Frequency Drive (VFD) system shall contain all components required to meet the performance, protection, safety, and certification criteria of this specification. Related Sections • Division 11.70 Blowers • Division 16.30 Basic Panel Equipment and Devices • Division 16.41 Motor Control Center • Division 17 Automatic Control 16-11 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 References • National Fire Protection Association - NFPA 70 - US National Electrical Code. • National Electrical Manufacturers Association - NEMA 250 - Enclosures for Electrical Equipment. • Underwriters Laboratory Inc. — UL 508. • Canadian Standards Association International — CAN/CSA-C22.2 No. 14-05. • International Electrical Code - IEC 146. • Institute of Electrical and Electronics Engineers, Inc. - IEEE 519 - IEEE Standard Practices and Requirements for Harmonic Control in Electrical Power Systems. • Seismic Standards ASCE 7-10, IBC, CBC, ICC—ESAC156, IEEE 693 and California OSHPD. Submittals Submit under provisions of Sections 1.33 and 16.05. Shop Drawings - Approval 1. Elevation Drawings: Include dimensional information and conduit routing locations. 2. Unit Descriptions: Include amperage ratings, enclosure ratings, fault ratings, nameplate information, and so on, as required for approval. 3. Wiring Diagrams: a) Power Diagram: Include amperage ratings, circuit breaker frame sizes, circuit breaker continuous amp ratings, and so on, as required for approval. b) Control Diagram: Include disconnect devices, pilot devices, and so on. 4. Major components list. Product Data Sheets 1. VFD and Operator Interface publications. 2. Data sheets and publications on all major components including, but not limited to, the following: a) Contactors b) Circuit breaker and fuse (power and control) c) Control power transformers d) Pilot devices e) Relays/Timers Test procedures shall be per the manufacturer's standards. 16-12 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Closeout Submittals (Operation and Maintenance Manuals) Submit under provisions of Sections 1.79.2 and 17.94. Shop Drawings — Final as shipped 1. Elevation Drawings: Include dimensional information and conduit routing locations. 2. Unit Descriptions: Include amperage ratings, enclosure ratings, fault ratings, nameplate information, and so on, as required for approval. 3. Wiring Diagrams: a) Power Diagram: Include amperage ratings, circuit breaker frame sizes, circuit breaker continuous amp ratings, and so on, as required for approval. b) Control Diagram: Include disconnect devices, pilot devices, and so on. c) Diagrams shall updated based on field modifications and shall be accurate depicting point-to-point wiring. 4. Major components list. Product Data Sheets 1. VFD and Operator Interface publications. 2. Data sheets and publications on all major components including, but not limited to, the following: a) Contactors b) Circuit breaker and fuse (power and control) c) Control power transformers d) Pilot devices e) Relays/Timers Test procedures shall be per the manufacturer's standards. Operation and Maintenance Data 1. Service and Contact information 2. VFD and Operator Interface User Manuals 3. Troubleshooting / Service Manuals Quality Assurance Qualifications: 1. Manufacturers: a) The VFD and all associated optional equipment shall be UL listed or recognized. b) The VFD shall contain a UL label attached on the inside of the enclosure cabinet. 2. Suppliers: 16-13 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 a) All inspection and testing procedures shall be developed and controlled under the guidelines of the Supplier's quality system and must be registered to ISO 9001 and regularly reviewed and audited by a third -party registrar. b) The VFD shall be factory pre -wired, assembled and tested as a complete package. Delivery, Storage, and Handling Contractor shall coordinate the shipping of equipment with the manufacturer. Contactor shall store the equipment in a clean and dry space at an ambient temperature range of -25 degrees Celsius to 55 degrees Celsius (-13 degrees Fahrenheit to 130 degrees Fahrenheit). The Contractor shall protect the units from dirt, water, construction debris, and traffic. Design Requirements Drive(s) shall be of the size, capacity and quantity as shown on the Plans. VFD supplier shall confirm motor HP, amperage, service factor and operating requirements with motor supplier. The VFD motor controller shall convert 480 Volt, 3-phase, 60 Hertz utility power to adjustable voltage (0 - 460V) and frequency (0 - 60 Hz.) 3-phase, AC power for stepless motor speed control with a capability of 10:1 speed range. All general options and modifications shall mount within the standard adjustable frequency controller enclosure. The controller(s) shall be suitable for use with any standard NEMA-B squirrel -cage induction motor(s) having a 1.15 Service factor. At any time in the future, it shall be possible to substitute any standard motor (equivalent horsepower, voltage, and current) in the field. The variable frequency control shall operate satisfactorily when connected to a bus supplying other solid-state power conversion equipment which may be causing up to 10 percent total harmonic voltage distortion and commutation notches up to 36,500-volt microseconds, or when other VFDs are operated from the same bus. Manufacturers shall certify at submittal time that their equipment will function satisfactorily under these circumstances. Individual or simultaneous operation of the VFDs shall not add more than 5 percent total harmonic current distortion to the normal bus, nor more than 10 percent while operating from standby generator per IEEE 519, 2014. Prior to project completion, the Contractor shall provide verification through both measurement and calculations that the system is compliant with IEEE 519, 2014. VFDs may be variable torque or constant torque rated depending on the motor being operated. The VFD supplier shall review the appropriate Division 11 specifications coordinate with the equipment manufacturer of the motor being operated to ensure that the VFD supplied has a torque rating compatible with the motor. Part 2 — Products Manufacturers The VFD's shall be an Allen-Bradley Powerflex 753 or 755 model VFD with EtherNet/IP communication interface. All drives shall be supplied by one manufacturer. 16-14 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Manufactured Units The variable frequency control shall include transient voltage suppression to allow reliable operation on a typical industrial or commercial power distribution system. Hardware 1. Utilize diode bridge or SCR bridge on the input rectifier. 2. Utilize DC bus inductor on all six -pulse VFDs only. 3. Utilize switching logic power supply operating from the DC bus. 4. Incorporate phase to phase and phase to ground MOV protection on the AC input line. 5. Microprocessor based inverter logic shall be isolated from power circuits. 6. Utilize latest generation IGBT inverter section. 7. Battery receptacle for Lithium battery power to the Real Time Clock. 8. Additional DPI port for handheld and remote HIM options. 9. Dedicated Digital Input for hardware enable. 10. Conformal coated printed circular boards. 11. Informal coated printed circuit boards. 12. Optional onboard 24V DC Auxiliary Control Power Supply. 13. The drive shall have the following specific features to enable integration with a Rockwell Automation ControlLogixTM or CompactLogixTM Automation Controller. a) Shall have Add on Profile available for use with Rockwell Automation Studio 5000 programming software. b) Shall support Rockwell Automation controller's Automatic Device Configuration functionality. Control Logic 1. Ability to operate with motor disconnected when in V/Hz mode. 2. Provide a controlled shut down, when properly protected, with no component failure in the event of an output phase to phase or phase to ground short circuit. Provide annunciation of the fault condition. 3. Provide multiple programmable stop modes including Ramp, Coast, DC -Brake, Ramp -to -Hold, Fast Braking, and Current Limit Stop. 4. Provide multiple acceleration and deceleration rates. 5. Adjustable output frequency up to 650 Hz. 6. Ability to control outputs and manage status information locally within the VFD. 7. Ability to function stand-alone or complementary to supervisory control. S. Ability to provide scaling, selector switches, or other data manipulations not already built into the VFD. 16-15 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Motor Control Modes 1. Selectable Sensorless Vector, Flux Vector, V/Hz, and Adjustable Voltage Control modes selectable through programming. 2. The drive shall be supplied with a Start-up and Auto -tune mode. 3. The V/Hz mode shall be programmable for fan curve or full custom patterns. 4. Capable of Open Loop V/Hz. Current Limit 1. Programmable current limit from 20 percent to 160 percent of rated output current. 2. Current limit shall be active for all drive states: accelerating, constant speed and decelerating. 3. The drive shall employ PI regulation with an adjustable gain for smooth transition in and out of current limit. Acceleration / Deceleration 1. Accel/Decel settings shall provide separate adjustments to allow either setting to be adjusted from 0 to 3600 seconds. 2. A second set of remotely selectable accel/decel settings shall be accessible through digital inputs. 3. S Curve profiles shall be adjustable. Adjustments 1. A digital interface can be used for all set-up, operation and adjustment settings. 2. All adjustments shall be stored in nonvolatile memory (EEPROM). 3. No potentiometer adjustments shall be required. 4. EEPROM memory for factory default values shall be provided. 5. Software must be available for trending and diagnostics, as well as online and offline programming functionality. Process PID Control 1. The drive shall incorporate an internal process PI regulator with proportional and integral gain adjustments as well as error inversion and output clamping functions. 2. The feedback shall be configurable for normal or square root functions. If the feedback indicates that the process is moving away from the set -point, the regulator shall adjust the drive output until the feedback equals the reference. 3. Process control shall be capable of being enabled or disabled with a hardwire input. Transitioning in and out of process control shall be capable of being tuned for faster response by preloading the integrator. 4. Protection shall be provided for a loss of feedback or reference signal. 16-16 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Skip Frequencies 1. Three adjustable set points that lock out continuous operation at frequencies which may produce mechanical resonance shall be provided. 2. The set points shall have a bandwidth adjustable from Maximum Reverse Speed to Maximum Forward Speed. Fault Memory 1. The last 100 fault codes shall be stored and time stamped in a fault buffer. 2. Information about the drive's condition at the time of the last fault such as operating frequency, output current, do bus voltage and twenty-seven other status conditions shall be stored. 3. A power -up marker shall be provided at each power -up time to aid in analyzing fault data. 4. The last 100 alarm codes shall be stored and time stamped for additional troubleshooting reference. Fault Reset / Run 1. The drive shall provide up to nine automatic fault reset and restarts following a fault condition before locking out and requiring manual restart. 2. The automatic mode shall not be applicable to a ground fault, shorted output faults and other internal microprocessor faults. 3. The time between restarts shall be adjustable from 0.5 seconds to 30 seconds. Run on Power Up 1. A user programmable restart function shall be provided to allow restart of the equipment after restoration of power after long duration power outages. Restart time dependent on presence of incoming signal. Overload Protection 1. The drive shall provide internal class 10 adjustable overload protection. 2. Overload protection shall be speed sensitive and adjustable. 3. A viewable parameter shall store the overload usage. Auto Economizer 1. An auto economizer feature shall be available to automatically reduce the output voltage when the drive is operating in an idle mode (drive output current less than programmed motor FLA). The voltage shall be reduced to minimize flux current in a lightly loaded motor thus reducing kW usage. 2. When the load increases, the drive shall automatically return to normal operation. Terminal Blocks 1. Separate terminal blocks shall be provided for control and power wiring. 16-17 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 2. I/O terminal blocks shall be removable with wiring in place. 3. For frames 8 to 10 power wiring is landed on robust L-brackets behind the drive unit. This wiring remains in -place if the drive unit is removed. Flying Start 1. The drive shall be capable of determining the speed and direction of a spinning motor and adjust its output to "pick-up" the motor at the rotating speed. This feature is disabled by default. Inputs and Outputs 1. The Input / Output option modules shall consist of both analog and digital I/O. 2. No jumpers or switches shall be required to configure digital inputs and outputs. 3. All digital input and output functions shall be fully programmable. 4. The control terminal blocks shall be rated for 115V AC. 5. Inputs shall be optically isolated from the drive control logic. 6. The control interface card shall provide input terminals for access to fixed drive functions that include start, stop, external fault, speed, and enable. 7. The VFD shall be capable of supporting up to 7 analog inputs, 7 analog outputs, 21 digital inputs, 7 relay outputs, 7 transistor outputs, and 3 positive temperature coefficient (PTC) inputs. 8. The Input / Output option modules shall have the following features: a) Analog Inputs: i. Quantity two (2) differentially isolated, ±10V (bi-polar), 88k ohm input impedance, 4-20 mA, 11 bit plus sign. ii. Analog inputs shall be user programmable for a variety of uses including frequency command and process loop input. Analog inputs shall be user programmable for function scaling (including invert), offset, signal loss detect, and square root. b) Analog Outputs: i. Quantity two (2) ±10V (bi-polar) / 11 bit and sign, 2 k ohm minimum load, 4-20 mA, 11 bit plus sign, 400 ohm maximum load. ii. The analog output shall be user programmable to be proportional to one of fourteen process parameters including output frequency, output current, encoder feedback, output power. iii. Programming shall be available to select either absolute or signed values of these Parameters. c) Digital Inputs: i. Quantity of six (6) digital inputs rated 24V DC/ 115V AC. 16-18 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 ii. All inputs shall be individually programmable for multiple functions including: Start, Run, Stop, Auxiliary Fault, Speed Select, Jog and Process PI functions. d) Digital Outputs: i. At least one (1) relay output (N.O. or N.C.). ii. For 240V AC or 24V DC, N.O. contact output ratings shall be 2-amp maximum, general purpose (inductive)/resistive. N.C. contact output ratings shall be 2-amp maximum, resistive only. iii. Relays shall be programmable to multiple conditions including: Fault, Alarm, At Speed, Drive Ready, and PI Excess Error. iv. Timers shall be available for each output to control the amount of time, after the occurring event, that the output relay actually changes state. V. At least one (1) transistor output. vi. For 24V DC, transistor output rating shall be 1-amp maximum, Resistive. Reference Signals 1. The drive shall be capable of using the following input reference signals: a) Analog Inputs b) Preset Speeds c) Remote Potentiometer d) Digital MOP e) Human Interface Module f) Communication Modules Loss of Reference 1. The drive shall be capable of sensing reference loss conditions. 2. In the event of loss of the reference signal, the drive shall be user programmable to the following: a) Fault the drive and coast to stop. b) Issue a minor fault - allows the drive to continue running while some types of faults are present. c) Alarm and maintain last reference. 3. When using a communications network to control the drive, the communications adapter shall have these configurable responses to network disruptions and controller idle (fault or program) conditions: a) Fault b) Stop c) Zero Data 16-19 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 d) Hold Last State e) Send Fault Configuration Metering 1. At a minimum, the following parameters shall be accessible through the Human Interface Module, if installed: a) Output Current in Amps b) Output Voltage in Volts c) Output Power in kW d) Elapsed MWh e) DC Bus Voltage fl Frequency g) Heatsink Temperature h) Last eight (32) faults i) Elapsed Run Time j) IGBT Temperature k) Blown fuses, including specific fuse locations communicated to the host system Faults 1. At a minimum, the following faults shall be accessible through the Human Interface Module: a) Power Loss b) Undervoltage c) Overvoltage d) Motor Overload e) Heat Sink Over -temperature fl Maximum Retries g) Phase to Phase and Phase to Ground Faults Predictive Maintenance Features 1. At a minimum, the following predictive diagnostic features shall be provided, and a parameter showing the remaining lifetime expressed as hours of the following components will be available: a) Relay Output Life Cycles based on load type and amps. b) Hours of Fan Life based on load and ambient temperature. c) Motor Bearing life based on expected hours of use. 16-20 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 d) Motor Lubrication schedule based on hours of use. e) Machine Bearing life based on expected hours of use. fl DC Bus Capacitors based on actual use (temperature, current, and ripple). g) IGBTs based on actual load and temperature. h) LCL filter Capacitors based on actual use. Real -Time Clock 1. Shall be capable of providing time stamped events. 2. Shall have the ability to be set locally or via a remote controller. 3. Shall provide the ability to be programmable for month, day, year and local time zones in HH:MM:SS. VFD Packaged System Basic Features 1. Ratings a) Voltage i. Capable of accepting nominal power of 480V AC at 60 Hz. ii. The supply input voltage tolerance shall be + 10 percent of nominal line voltage. b) Displacement Power Factor i. Six -pulse VFD shall be capable of maintaining a minimum true power factor (Displacement P.F. X Distortion P.F.) of 0.95 or better at rated load and nominal line voltage, over the entire speed range. c) Efficiency i. A minimum of 96.5 percent (+/- 1 percent) at 100 percent speed and 100 percent motor load at nominal line voltage. ii. Control power supplies, control circuits, and cooling fans shall be included in all loss calculations. d) Operating ambient temperature range without derating: 0 degrees Celsius to 40 degrees Celsius (32 degrees Fahrenheit to 104 degrees Fahrenheit). e) Operating relative humidity range shall be 5 percent to 95 percent non -condensing. fj Operating elevation shall be up to 1,000 Meters (3,300 ft) without derating. 2. Sizing a) Systems rated at Normal Duty loads shall provide 110 percent overload capability for up to one minute and 150 percent for up to 3 seconds. b) Systems rated at Heavy Duty loads shall provide 150 percent overload capability for up to one minute and 180 percent for up to 3 seconds. 16-21 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 3. Auto Reset/Run a) For faults other than those caused by a loss of power or any other non -critical fault, the drive system shall provide a means to automatically clear the fault and resume operation. 4. Ride -Through a) The VFD system shall attempt to ride through power dips up to 20 percent of nominal. The duration of ride -through shall be inversely proportional to load. For outages greater than 20 percent, the drive shall stop the motor and issue a power loss alarm signal to a process controller, which may be forwarded to an external alarm signaling device. 5. Run on Power Up a) The VFD system shall provide circuitry to allow for remote restart of equipment after a power outage. Unless indicated in the contact drawings, faults due to power outages shall be remotely resettable. The VFD system shall indicate a loss of power to a process controller, which may be forwarded to an external alarm signaling device. Upon indication of power restoration the process controller will attempt to clear any faults and issue a run command, if desired. 6. Communications a) VFD shall be capable of communicating on multiple networks. b) The VFD shall provide a Dual Port EtherNet/IP interface. c) VFD shall be capable of supporting the following network options: i. DeviceNet ii. EtherNet/IP ill. ControlNet Coax iv. ControlNet Fiber v. Interbus vi. CANopen vii. Modbus/TCP viii. Modbus RTU ix. Profibus DP x. RS-485 DF1 xi. RS-485 HVAC xii. Remote I/O 7. Enclosure Door Mounted Human Interface Module (HIM) a) VFD shall provide a HIM with integral LCD display, operating keys and programming keys. 16-22 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 b) An enclosure door -mounted HIM, rated NEMA/UL Type 12, shall be provided. c) The HIM shall have the following features: i. A seven (7) line by twenty-one (21) character backlit LCD display with graphics capability. ii. Shall indicate drive operating conditions, adjustments, and fault indications. iii. Shall be configured to display in the following three distinct zones: a. The top zone shall display the status of direction, drive condition, fault / alarm conditions, and Auto / Manual mode. b. The middle zone shall display drive output frequency. c. The bottom zone shall be configurable as a display for either programming menus / information or as a two-line user display for two additional values utilizing scaled units. iv. Shall provide digital speed control. v. The keypad shall include programming keys, drive operating keys (Start, Stop, Direction, Jog, and Speed Control), and numeric keys for direct entry. Enclosure 1. Shall be rated NEMA/UL Type 12. 2. Shall be painted per the manufacturer's standard. 3. Shall provide entry and exit locations for power cables. 4. Shall contain a label for UL508. 5. The drive system nameplate shall be marked with system Short Circuit Current Rating (SCCR). Drive Enclosure Input Disconnect 1. Provide an enclosure door interlocked disconnect with thermal magnet circuit breaker. 2. Operator Handles a) Provide externally operated main disconnect handle. b) Handles shall be lockable with up to three lockout / tagout padlock positions. Branch Circuit Protection 1. Input fusing, motor circuit protector (MCP), or inverse time circuit breaker shall be provided. Control Power Transformer 1. Provide a control power transformer mounted and wired inside of the drive system enclosure. 2. The transformer shall be rated for the VFD power requirements. Harmonic Mitigation Techniques 16-23 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 1. The drive system shall be compliant with IEEE 519-2014 standards at the input VFD terminals based upon the input power phase imbalance within 0.5 percent of nominal line voltage and under full VFD output current ratings 2. Passive Harmonic Filter a) VFDs shown with passive harmonic line filters shall be supplied with an input AC line harmonic filter compensated reactor with minimum 5 percent impedance unless noted otherwise on the one -line diagram. Line reactor shall be designed to address performance issues of NEMA MG1-20.55 and to provide proper transient protection of the VFD input power devices. Harmonic line filters shall be MTE Matrix Series AP Harmonic Filters or equal, with Capacitor Contactor for disconnecting the filter capacitor bank when the drive is not running. Auxiliary Relays 1. Provide relays for Drive Alarm, Drive Ready, Drive Fault, Drive Run, and System Status Faults (as required). 2. See section 16.32.1 Relays. Control Interface 1. The control terminals shall berated for 115V AC. 2. The control interface shall provide input terminals for access to VFD functions that include start, stop, external fault, speed select, and enable, as required. Hand/Off/Auto Selector Switch 1. Provide a "HAND/OFF/AUTO" selector switch, mounted on the enclosure door. 2. The "HAND/OFF/AUTO" selector switch shall start the drive in the "HAND" mode and stop the drive in the "OFF" mode. 3. In the "AUTO" mode the drive shall be started and stopped from a remote "RUN" contact. 4. In all modes, Auxiliary and Enable inputs to the drive control interface board must be present before the drive will start. 5. When a HIM is present, the stop function shall always be available to stop the drive regardless of the selected mode ("HAND" or "AUTO"). The HIM will be non-functional (except for the display and programming) when the switch is in "OFF" mode. The HIM shall stop the drive if the switch is in the "AUTO" mode with the remote start contact initiated. 6. The drive speed reference shall be controlled from the HIM, unless a separate door - mounted potentiometer is provided, when in "HAND" mode (factory default setting). 7. The drive speed reference shall be controlled by a remote 4...20 mA input when in "AUTO" mode. S. See section 16.31.5 Selector Switch. 16-24 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Drive Disable Mushroom Push Button 1. Provide a maintained mushroom style push button, mounted on the enclosure door that when pushed, will open the drive enable input. 2. See section 16.31.4 Pushbuttons. Pilot Lights 1. Provide LED pilot lights, mounted on the enclosure door, for indication of the following status: a) Run b) Drive Fault c) Control Power On d) Motor Fault 2. See section 16.31.6 Indicating Lights. Motor Run Time Meter 1. Provide a digital, non-resettable, door -mounted elapsed time meter. 2. The meter shall be electrically interlocked with the Drive Run relay and Bypass contactor to indicate actual motor operating hours. 3. See section 16.31.2 Run Time Meters. Output Filtering 1. 5 percent output line reactor Part 3 — Execution Setup VFD Manufacturer shall program: 1. All fault settings to reset after fault condition returns to normal 2. Minimum and maximum motor speeds provided by motor manufacturer. 3. Hertz change per second. 4. Hand speed control shall be set to 95 percent of full range for panel mounted HOA switch. 5. EtherNet/IP and HIM module communication faults/alarms to "No Action". Communication errors should not shut down the VFD. 6. Parameter 150 (Digital In Cfg) to "Run Level", not "Run Edge". 7. Parameter 292 and I/O card parameters 106 and 116 (Life Event Parameter Settings) to "No Action" so that these life event alarms do not fault the VFD. VFD Supplier shall provide documentation on how to control the drive over EtherNet/IP. This information should include a unique list of parameter, relay, setpoint, input/output, and control addressing as shown on the Plans and detailed in these specifications. A generic list 16-25 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 does not meet this requirement. An Add -on -instruction or profile compatible with Rockwell Automation Studio 5000 programming would meet this requirement. Examination Verify that location is ready to receive equipment. Verify that the building environment can be maintained within the service conditions required by the manufacturer of the VFD. Testing This equipment shall be tested and placed into operation by a qualified factory representative trained in start-up and troubleshooting procedures for equipment being installed. All components shall be factory tested both by the manufacturer at the manufacturer's facility and in the presence of the Engineer by the manufacturer or manufacturer's representative at the manufacturer's facility or at a Control System Integrator's shop located within 100 miles of the job site. Factory testing shall be witnessed by the Engineer. If factory witness testing is to occur at the manufacturer's facility, the manufacturer's facility where testing takes place shall be located within the United States of America. Shipment of VFD to the job site shall not be allowed until the Engineer has witnessed factory testing and approved the VFD for shipment to the job site. Installation Installation shall be in compliance with all manufacturer requirements, instructions, and drawings. Startup At a minimum, the start-up service shall include: 1. Perform pre -Power Check 2. Megger Motor Resistances: Phase -to -Phase and Phase -to -Ground 3. Verify system grounding per manufacturer's specifications 4. Verify power and signal grounds 5. Check connections 6. Check environment Drive Power -up and Commissioning: 1. Measure Incoming Power Phase -to -Phase and Phase -to -Ground 2. Measure DC Bus Voltage 3. Measure AC Current Unloaded and Loaded 4. Measure Output Voltage Phase -to -Phase and Phase -to -Ground 5. Verify input reference signal All measurements shall be recorded. 16-26 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Drive shall be tuned for system operation. Drive parameter listing shall be provided. The line side converter shall be configured and tuned for the local input power conditions. The motor side inverter shall be tuned for system operation. Training Manufacturer to provide a quantity of one 4-hour sessions of on -site instruction. The instruction shall include the operational and maintenance requirements of the variable frequency drive. The basis of the training shall be the variable frequency drive, the engineered drawings and the user manual. At a minimum, the training shall: 1. Review the engineered drawings identifying the components shown on the drawings. 2. Review starting / stopping and speed control options for the controller. 3. Review operation of the HIM for programming and monitoring of the variable frequency drive. 4. Review the maintenance requirements of the variable frequency drive. 5. Review safety concerns with operating the variable frequency drive. 16.55 Switches and Protective Devices 16.55.1 Common Work for Switches and Protective Devices Part 1 - General Design Requirements Overcurrent devices shall be NEMA rated. Extra Materials Provide one fuse for each ungrounded conductor and a minimum of one spare fuse per phase of each ampacity and voltage used on the project. Deliver fuses to Owner at the completion of the project. Part 3 — Execution Installation Overcurrent protection devices and safety switches shall be centered 60 inches above the finished floor unless noted otherwise on the Plans. 16-27 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 16.55.16 Molded Case Circuit Breakers Part 1 - General Design Requirements Breakers shall have the interrupting rating and trip rating indicated on the Plans. All breakers shall be calibrated for operation in an ambient temperature of 40 degrees Celsius. Part 2 - Products Manufactured Units Molded case circuit breakers shall be quick -make and quick -break type with wiping type contacts. Each breaker shall be provided with arc chutes and individual trip mechanisms on each pole consisting of both thermal and magnetic trip elements. Two and three pole breakers shall be common trip. Molded case circuit breakers shall be trip -free. Each breaker shall have trip indication independent of the "ON" or "OFF" positions. 16.60 CONDUCTORS 16.61 Low Voltage Wire and Cable Part 1 - General Design Requirements This section is for power and control conductors for 600 volts or less. All conductors shall be copper. Wire or cable not shown on the Plans or specified, but required, shall be of the type and size required for the application and in conformance with the applicable code. Part 2 - Products Materials Conductors 1. Solid and stranded copper wire shall be 600-volt Type THW, THWN, or THHW, Class B stranding, sizes #14 AWG, #12 AWG, and #10 AWG only. Use of THHN insulation shall not be allowed. Aluminum conductors shall not be allowed. 2. Stranded copper wire shall be 600-volt Type XHHW, Class B stranding, sizes #8 AWG and larger. Aluminum conductors shall not be allowed. Splices 1. For Lighting Systems and Power Outlets: Wire nuts shall be twist -on type insulated connectors utilizing an outer insulating cover and a means for connecting and holding the conductors firmly. 2. All Equipment: Crimp type connectors shall be insulated type, suitable for the size and material of the wires and the number of wires to be spliced and for use with either solid or stranded conductors. 16-28 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 3. Division 16 Equipment and Power Conductors: Bolted pressure connectors shall be suitable for the size and material of the conductors to be spliced. 4. All Equipment: Epoxy splice kits shall include epoxy resin, hardener, mold, and shall be suitable for use in wet and hazardous locations. Terminations 1. Crimp type terminals shall be self -insulating sleeve type, with ring or rectangular type tongue, suitable for the size and material of the wire to be terminated, and for use with either solid or stranded conductors. 2. Terminal lugs shall be split bolt or bolted split sleeve type in which the bolt or set screw does not bear directly on the conductor. 3. Wire Markers shall be plastic sleeve type. Wire numbers shall be permanently imprinted on the markers. Finishes Color Coding: Provide color coding for all circuit conductors. Insulation color shall be white for neutrals and green for grounding conductors. An isolated ground conductor shall be identified with an orange tracer in the green body. Ungrounded conductor colors shall be as follows: 1. 120/208 Volt, 3 Phase: Red, black and blue. 2. 277/480 Volt, 3 Phase: Yellow, brown and orange. 3. 120/240 Volt, 1 Phase: Red and black. Part 3 — Execution Location (Installment) Schedule Provide the following conductors for the following applications: 1. Use stranded copper conductors for all power and control circuits unless noted otherwise on plans or below. Size as noted on the Plans. 2. Contractor may use solid copper conductors for lighting and receptacle circuits using screw -type terminals. Size as noted on the Plans. 3. Size #14 AWG wire or smaller shall not be allowed on power circuits. Installation Conductor Splices 1. Splices: Install all conductors without splices unless necessary for installation, as determined by the Engineer. Splices when permitted shall be completed using an approved splice kit intended for the type of conductor and the application. The splice shall be in accordance with the splice kit manufacturer's instructions. 2. Underground Splices: All underground outdoor splices when approved by Engineer shall be completed in an accessible pullbox or handhole using an approved watertight epoxy 16-29 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 resin splice kit rated for the application up to 600 volts. Splices will not be allowed to be direct buried. Conductor Identification Except for interior lighting and receptacle circuits, identify each wire or cable at each termination and in each pullbox, junction box, handhole, and manhole using numbered and lettered wire markers. All electrically common conductors shall have the same number. Each electrically different conductor shall be uniquely numbered. Identify panelboard circuits using the panelboard identification and circuit number. Identify motor control circuits using the equipment identification number assigned to the control unit by the motor control center manufacturer and the motor control unit terminal number. Identify other circuits as shown in the circuit schedule as favorably by the Engineer. 2. Conductors between terminals of different numbers shall have both terminal numbers shown at each conductor end. The terminal number closest to the end of the wire shall be the same as the terminal number. Testing Insulation Resistance Tests: For all circuits 150 volts to ground or more and for all motor circuits over'/2 horsepower, test cables per NETA Paragraph 7.3.1. The insulation resistance shall be 20 megohms or more. Submit results to Engineer for review. 16.63 Signal Cable Part 2 - Products Materials Twisted Shielded Pairs (:ESL?) Cable shall conform to IEEE 383, UL 13, and UL 83 and shall be type PLTC cable suitable for direct burial. Each TSP shall consist of two #16 AWG, 7-strand copper conductors per ASTM B8 with 15 Mils PVC insulation and individual conductor jacket of nylon. Conductors shall be twisted with 2-inch or shorter lay, with 100 percent foil shielding and tinned copper drain wires. The cable shall have an overall PVC jacket with a thickness of 35 Mils. The insulation system shall be rated at 90 degrees Celsius and for operation at 600 volts. Cat 5E Ethernet Cable The Ethernet cable shall be shielded 600V UL rated. The use of a 300V rated cable is not acceptable. All Ethernet cable terminating outside of a telemetry panel shall be grounded at the telemetry panel only. 2. Ethernet cables shall be industrial type Ethernet cable and UL listed for installation in the Motor Control Center. Ethernet cables shall be Allen-Bradley Ethernet Cable with metal In -cabinet RJ45 Connectors, no substitutions. 16-30 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Part 3 - Execution Installation Cable Installation 1. Cables shall be continuous from initiation to termination without splices. 2. Cable shielding shall be grounded at one end of the cable only. Bonding shall be to a single ground point only. Bonding from cable to cable in multiple run installations shall not be permitted. 3. Install instrumentation cables in separate raceway systems with voltages not to exceed 30 volts DC. Conductor Identification 1. Except for interior lighting and receptacle circuits, identify each wire or cable at each termination and in each pullbox, junction box, handhole, and manhole using numbered and lettered wire markers. All electrically common conductors shall have the same number. Each electrically different conductor shall be uniquely numbered. Identify panelboard circuits using the panelboard identification and circuit number. Identify motor control circuits using the equipment identification number assigned to the control unit by the motor control center manufacturer and the motor control unit terminal number. Identify other circuits as shown in the circuit schedule as determined by the Engineer. 2. Conductors between terminals of different numbers shall have both terminal numbers shown at each conductor end. The terminal number closest to the end of the wire shall be the same as the terminal number. Testing Insulation Resistance Tests: Perform insulation resistance on all circuits. Make these tests before any equipment has been connected. Test the insulation with a 500 Vdc insulation resistance tester with a scale reading 100 mega ohms. The insulation resistance shall be 20 mega ohms or more. Submit results to Engineer for review. 16.70 RACEWAYS, BOXES, AND FITTINGS 16.71 Raceways Part 1— General Design Requirements Conduit sizes not noted on Plans shall be in accordance with NEC requirements for the quantities and sizes of wire installed therein. Grounding of the raceway, junction boxes, fittings and any other boxes is the responsibility of the Contractor. Ground conductors, bushings, connections, clamps and other materials as needed to ground the raceway system is the responsibility of the Contractor. All raceways shall be grounded in accordance with the NEC. 16-31 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Part 2 — Products Components Conduit and Fittings 1. Galvanized Rigid Steel (GRS): Rigid conduit shall be steel, hot dipped galvanized inside and out. The GRS must meet USA Standards Institute C80-1 Underwriters Laboratories Standard UL6 and carry a UL label. Use cast threaded hub fittings and junction boxes for all rigid conduit except in locations not permitted by the NEC. Conduit and Cable Supports 1. Conduit Supports: Hot dipped galvanized framing channel shall be used to support groups of conduit. Individual conduit supports shall be one -hole galvanized malleable iron pipe straps used with galvanized clamp backs and nesting backs where required. Conduit support for PVC or PVC coated rigid steel shall be one -hole PVC or epoxy coated clamps or PVC conduit wall hangers. 2. Ceiling Hangers: Ceiling hangers shall be adjustable galvanized carbon steel rod hangers. Unless otherwise specified, hanger rods shall be 1/2-inch all -thread rod and shall meet ASTM A193. Hanger rods in corrosive areas and those exposed to weather or moisture shall be stainless steel. Conduit Sealants Moisture Barrier Types: Sealant shall be a non -toxic, non -shrink, non -hardening, putty type hand applied material providing an effective barrier under submerged conditions. 2. Fire Retardant Types: Fire stop material shall be a reusable, non -toxic, asbestos -free, expanding, putty type material with a 3-hour rating in accordance with UL 1479. Provide products indicated by the manufacturer to be suitable for the type and size of penetration. Part 3 - Installation Raceway Applications Galvanized Rigid Steel (GRS) conduit shall be used in all locations unless noted otherwise below or on the Plans. Installation All conduits shall be concealed in the floor, walls, ceiling slab, or beneath the floor slab. Surface mounted conduit will not be accepted unless noted otherwise on the construction Plans. Size of Raceways: 1. Raceway sizes as shown on the Plans, if not shown on the Plans, then size in accordance with NFPA 70. 2. Unless specifically indicated otherwise, the minimum raceway size shall be: a) Conduit: '/4-inch All raceways shall contain a separate grounding conductor. Spare conduits shall contain one 3/16 inch diameter nylon pull rope. 16-32 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Conduit routing is shown diagrammatic on the Plans. Contractor is responsible for routing the conduits in a neat manner, parallel and perpendicular to walls and ceilings. Location of conduit ends are shown approximately. Contractor is responsible for ending conduits in location that will not conflict with electrical equipment. Route conduit ends to facilitate ease of equipment maintenance. Conduits extending from the floor to a device shall be located as close as possible to avoid creating a hazard. Conduit shall not be routed on exterior of structures except as specifically indicated on the Plans. Where water cannot drain to openings, provide drain fittings in the low spots of the conduit run. Securely fasten raceways at intervals and locations required by NEC, or the type of raceway employed. Provide all required openings in walls, floors and ceilings for conduit penetration. 1. Do not install one (1) inch and larger raceways in or through structural members (beams, slabs, etc.) unless approved by Engineer. 2. New Construction: Avoid cutting openings, where possible, by setting sleeves or frames in masonry and concrete, and by requesting openings in advance. 3. Existing Construction: Core drill openings in masonry and concrete. Avoid structural members and rebar. Conduit encasement or embedment in the earth shall be separated from the earth by at least 3-inches of concrete unless otherwise shown on the Plans. Plastic conduit spacers shall be located five feet on centers. The spacers shall be secured to the conduits by wire ties. The conduits shall be watertight. Analog signal conduits shall be separated from power or control conduits. The separation shall be a minimum of 12-inches for metallic conduits and 24-inches for nonmetallic conduits. Install explosion -proof seal -offs in hazardous areas shown on the Plans and as required by the NEC. Plastic raceway joints shall be solvent cemented in accordance with recommendations of raceway manufacturer. All conduit openings not encased in a panel shall be sealed with duct seal. 16.72 Boxes and Enclosures 16.72.2 Outlet and Junction Boxes Part 1- General Design Requirements In corrosive areas, all junction boxes shall be NEA A 4X. Outlet boxes and switch boxes shall be designed for mounting flush wiring devices. 16-33 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 Outlet boxes shall not be less than 4-inch square and 1'/2-inch deep. Ceiling boxes shall withstand a vertical force of 200 pounds for five minutes. Wall boxes shall withstand a vertical downward force of 50 pounds for five minutes. Part 2 — Products Materials Use cast boxes with threaded hubs for all rigid and intermediate conduits. Steel boxes may be used with rigid and intermediate conduits where cast boxes are not allowed by the NEC. All boxes shall be of proper size to accommodate devices, connectors, and number of wires present in the box. Boxes shall be readily accessible. Cast box bodies and cover shall be cast or malleable iron with a minimum wall thickness of '/8-inch at every point, and not less than'/4-inch at tapped holes for rigid conduit. Bosses are not acceptable. Mounting lugs shall be provided at the back or bottom corners of the body. Covers shall be secured to the box body with No. 6 or larger brass or bronze flathead screws. Boxes shall be provided with neoprene cover gaskets. Outlet boxes shall be of the FS types. Boxes shall conform to FS W-C-586C and UL 514. Sheet metal boxes shall conform to UL 50, with a hot -dipped galvanized finish conforming to ASTM A123. Boxes and box extension rings shall be provided with knockouts. Boxes shall be formed in one piece from carbon -steel sheets. Non-metallic boxes shall be hot -compressed fiberglass, one-piece, molded with reinforcing of polyester material, with a minimum wall thickness of/s-inch. Finishes Where only cast aluminum is available for certain types of fixture boxes, an epoxy finish shall be provided. 16.72.3 Watertight Enclosures Part 2 — Products Manufacturers The watertight enclosure shall be equal to Hoffman. Materials Watertight enclosures for vault electrical outlets shall be molded from fiberglass reinforced polyester material. A hinged cover shall be gasketed and opened with quick release latches. The conduit penetrations shall be sealed watertight. Part 3 — Execution Installation An epoxy plug shall be installed in the conduit to prevent the migration of water into the conduit. The enclosure shall be NEMA rated and installed per all applicable codes. 16-34 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 16.75 Wiring Devices 16.75.1 Common Work for Wiring Devices Part 3 - Execution Installation Wiring Devices 1. Position of Outlets: All outlets shall be centered with regard to building lines, furring and trim, symmetrically arranged in the room or outside the structure. Device outlets shall be set plumb and shall extend flush to the finished surface of the wall, ceiling or floor without projecting beyond the same. 2. Unless otherwise noted, wall mounted outlet devices shall generally be 24-inches above the floor,18 inches in architecturally treated areas, above process piping near process valve boards. Switches shall be 48 inches above the finished floor unless otherwise noted. Installation of Wall Plates Interior Dry Locations: Install plates so that all four edges are in continuous contact with the finished wall surfaces. Plaster filled will not be permitted. Do not use oversize plates or sectional plates. 2. Exterior and/or Wet Locations: Install plates with gaskets on wiring devices in such a manner as to provide a rain tight weatherproof installation. For receptacle devices, these plates shall maintain the weatherproof rating with an attachment plug inserted and be rated extra -duty. Cover type shall match box type. Testing After installation of receptacles, circuits shall be energized, and each receptacle tested for proper ground continuity, reversed polarity, and/or open neutral condition. GFI receptacles shall be tested with the circuits energized. Devices shall be tested with a portable GFI receptacle tester capable of circulating 7.5 milliamperes of current, when plugged in, between the "hot" line and "ground" to produce tripping of the receptacle. Resetting and tripping shall be checked at least twice at each GFI receptacle. Submit results of all field testing to the Engineer for review. 16-35 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 16-36 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc. City of Lynnwood Winter 2022 WWTP Aeration Blowers Upgrade Division 16 16.95.3 Conductor Test Report Conductor Test Report Page 1 of 1 PROJECT: OWNER: Contractor Co. Name: Tested by: Phone Number: Test Date: Race- V C way Label 1 (2) (3) VAB Operating Load Voltage VCB VCA VAN VBN VCN Insulation Resistance - OHMS A-B B-C GA A-G B-G C-G A B C D E F G Refer to raceway and wire schedule and one -line diagram for description of feeder identified by label shown on this report 2. Visual Inspection — Check when completed 3. Continuity Test — Check when completed 16-37 \\corp.rh2.com\Projects\Project\Data\Trane\21-0305\30 Specs\Technicals\16 Electrical.doc 2/24/22 4:04 PM 0 2022 RH2 Engineering Inc.