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APPROVED PLN BLD BLD2021-0671+Mechanical_Plan+5.14.2021_9.29.11_AM+2196969Major Applicable Codes: DK Systems, Inc. PO Box 886 Burlington, WA 98233 PH 360-755-1555 FX 360-588-2418 C403.2 System design. Mechanical systems shall be designed to comply with Sections C403.2.1 and C403.2.2_ Where elements of a building's mechanical systems are addressed in Sections C403.3 through C403.13, such elements shall comply with the applicable provisions of those sections. C403.2.2 Ventilation and exhaust C403.2.2.1 Ventilation. Ventilation, either natural or mechanical, shall be provided in accordance with Chapter 4 of the Intemational hfechanical Code. Where mechanical ventilation is provided, the system shall be configured to provide no greater than 150 percent of the minimum outdoor air required by Chapter 4 of the lydernalional Mechanical Code or other applicable code or standard, whichever is greater. C403.3 Equipment selection. Heating and coding equipment installed in mechanical systems shall be sized in accordance with Section C403.3.1 and shall be not less efficient in the use of energy than as specified in Section C403.3.2. C403.3.1 Equipment and system sizing. The output rapacity of heating and cooling equipment shall be not greater than that of the smallest available equipment size that exceeds the loads calculated in accordance With Section C403.1.2. A single piece of equipment providing both heating and cooling shall satisfy this provision for one function with the capacity for the other function as small as possible, within available equipment options. Exceptions: 1. Required standby equipment and systems provided with controls and devices that allow such systems or equipment to operate automatically only when the primary equipment is not operating. 2. M u Itiple u n its .of the same equipment type with combined capacities exceed ing the design load and Provided with controls that are configured to sequence the operation of each unit based on load_ C403.3.2 HVAC equipment performance requirements. Equipment shall meet the minimum efficiency requirements of Tables C403.3.2(1) through C403.3.2(12) when tested and rated in accordance with the applicable test procedure. Plate -type liquid -to -liquid heat exchangers shall meet the minimum requirements of Table C40.3.2(10). Gas-fred and oil -Fred forced air furnaces with input ratings of 225,000 Btulh (65 kW) or greater and all unit heaters shall also have an intermittent ignition or interrupted device (IID), and have either mechanical draft (including power venting) or a flue damper. A vent damper is an acceptable alternative to a flue damper for fumaces where combustion air is drawn from the conditioned space. AI furnaces with input ratings of 225,000 Btulh (65 kW) or greater, includirg electric furnaces, that are not located within the conditioned space shall have jacket losses not exceeding 0.75 percent of the input rating. C403.4 HVAC system controls. HVAC systems shall be provided wth controls in accordance with Sectors C403.4.1 through C 403.4.1 1 and shall be capable of and configured to implement all required control functions in this code. C403.4.1 Thermostatic controls. The supply of heating and cooling energy to each zone shall be controlled by individual thermostatic controls capable of responding to temperature within the mire_ Controls in the same mire or in neighboring zones connected by openings larger than 10 percent of the floor area of either zone shall not allow for simultaneous heating and cooling. At a minimum, each floor of a building shall be considered as a separate zone. Controls on systems required to have economizers and serving single zones shall have multiple cooling stage capability and activate the econom Izer when appropriate as the first stage of cooling. See Section C403.5 for further economizer requirements_ W here humidification or dehumidification or both is provided, at least one humidity control device shall be provided for each humidity control system. Exceptions: 1. Independent perimeter systems that are designed to offset only building envelope heat losses or gains or both serving one or more perimeter zones also served by an interior system provided: 1.1. The perimeter system includes at least one thermostatic control zo,c for each building exposure having exterior walls facing only one orientation (within +1-45 degrees) (0.8 rad) for more than 50 contiguous feet (15,240 mm); 1.2. The perimeter system heating and cooling supply is controlled by a thermostat located within the zones served by the system; and 1.3. Controls are configured to prevent the perimeter system from operating in a dOerent heating or cooling made from the Other equipment within the zones or from neighboring zones connected by openings larger than 10 percent of the floor area of either zone. 2. Any interior zone open t0 a perimeter zone shall have set points and dead bands coordinated so that coding in the interior zone shall not operate while the perimeter zone is in heating until the interior zone temperature is 5'F (2.8'C) higher than the perimeter zone temperature, unless the interior and perimeter zones are separated by a partition whose permanent openings are smaller than 10 percent of the perimeter zone floor area. 3. Dedicated outdoor air units that provide ventilation air, make-up air or replacement eir-for exhaust systems are permitted to be controlled based on supply air temperature. The supply air temperature shall be controlled to a maximum of 65'F (18.3'C) in heating and a minimum of 72'F (2 2'C) in cooling unless the supply air temperature is being reset based on the status of cooling or heating in the zones served or it being reset based on outdoor air temperature_ C403.4.1.1 Heat pump supplementary heat Unitary air cooled heat pumps shall include microprocessor controls that minimize supplemental heat usage during start up, set up, and defrost conditions. These controls shall anticipate need for heat and use compression heating as the first stage d heat. Controls shall indicate when supplemental heating is being used through visual means (e_g_, LED indicators). Heat pumps equipped with supplementary heaters shall be installed with controls that prevent supplemental heater operation above 40'F (4.4'C). Exception: Packaged terminal heat pumps (PTHPs) of less than 2 tons (24.000 Btulhr) cooling rapacity provided with controls that prevent supplementary heater operation above 40'F. C403.4.1.2 Dead band, Where used to control both heating and cooling, zone thermostatic controls shall be configured to provide a temperature range or dead band of at least 5'F (2.8"Cj within which the supply of heating and cooling energy to the zone is shut off or reduced to a minimum. C403A.1.3 Set paint overlap restriction. Where a zone has a separate heating and a separate cooling thermostatic control located within the zone, a limit switch, mechanical stop or direct digital control system with software programming shall be configured to prevent the heating set point from exceeding the cooling set point and to maintain a dead band in accordance with Section C403.4.1.2. C403.4.1,4 Heated or cooled vestibules. The heating system for heated vestibules and air curtains with integral heating shall be provided with controls configured tD shut off the source of heating when the outdoor air temperature is greater than 45'F (i°C). Vestibule heating and coaling systems shall be controlled by a thermostat located in the vestibule configured to limit heating tO a temperature not greater than 60'F (I G'C) and cooling to a temperature not less than 85'F (29'C). Exceptions: 1. Control of heating Or cooling provided by transfer air that would otherwise be exhausted_ 2. Vestibule heating only systems are permitted to be controlled without an outdoor air temperature lockout when controlled by a thermostat located in the vestibule configured to limit heating to a temperature not greater than 45'F (7'0) where required for freeze protection of piping and sprinkler heads located in the vestibule. C403.4.1.5 Hot water boiler outdoor temperature setback control. Hot water boilers that supply heat to the building through one- OF two -pipe heating systems shall have an outdoor setback control that lowers the boiler water temperature based on the Outdoor temperature. C403.4.1.6 Door switches for HVAC system thermostatic control. Doos that open to the outdoors from a conditioned space must have controls configured to do the following once doors have been open for 5 minutes: 1. Disable the mechanical heating tO the zone or reset the space heating temperature set pointto 55 'F or less within 5 minutes of the door open enable signal_ 2. Disable the mechanical cooling to the zone or reset the space cooling temperature set point to 85 "F or more within 5 minutes of the door open enable signal. Exceptions: 1. Building entrances with vestibules. 2. Aterationsto existing buildings. 3. Loading docks. C403,4.2 Off -hour controls. For all occupancies other than Group R, each zone shall be provided with thermostatic setback controls that are controlled by either art autonNdx time Clock Or programmable control system. 2018 International Building Code with Washington State Amendments 2018 International Mechanical code with Washington State Amendments 2018 International Fire Code with Washington State Amendments 2018 International Fuel Gas Code with Washington State Amendments 2018 Washington State Energy Code 2018 Washington Energy Code Notes C403,4,2.1 Thermostatic setback. Thermostatic setback controls shall be configured to set back or temporarily operate the system to maintain zone temperatures down to 55'F (13'0) or up to 85'F (29'C). Exceptions: C403d.2.2 Automatic setback and shutdown. Ai domatic time clock or programmable controls shall be 1. Gravity (nonmallorized) dampers are not required to be tested to verify the air leakage rating when capable of starting and stopping the system for seven different daily schedules per week and retaining their installed in exhaust systems where the exhaust capacity does not exceed 400 cfm (189 Lls) and programming and time setting during a loss of powerfor at least 10 hours. Additionally, the controls shall the gravity damper is provided with a gasketed seal. have a manual override that allows temporary operation of the system for up to 2 hours; a manually 2. Motorized dampers on return air openings in unitary packaged equipment that have the minimum operated timer configured to operate the system for up to 2 hours; or an occupancy sensor. leakage rate available from the manufacturer. C403.42.3 Autocratic start and stop. Automatic start and stop controls shall be provided for each HVAC C403.7.8.4 Damper actuation. Outdoor air intake, relief and exhaust shutoff dampers shall be installed system. The automatic sled controls shall be configured to automatically adjust the daily y start time oithe with automatic controls configured fi4 to close when the systems ors Paoes served are not in use Of during HVAC system in order to bring each space to the desired occupied temperature immediately prior to unoccupied period warm-up and setback operation, unless the systems served require outdoor or exhaust scheduled occupancy. The automatic stop controls shall be configured to reduce the HVAC system's air in accordance with the lrhlemationai Mechanicai Cade or the dampers are opened to provide intentional heating temperature set point and increase the cooling temperature set point by at least 2'F (1.1'C) before economizer coding. Stairway and elevator hoistway shaft vent dampers shall be installed with automatic scheduled unoccupied periods based upon the thermal lag and acceptable drift in space temperature that is controls configured to open upon the activation of any fire alarm initiating device of the building's fire alarm within comfort limits_ At a minimum, the controls shalt be a function of the space temperature, occupied and system orthe interruption of power to the damper. unoccupied temperatures, and the amount of time prior to scheduled occupancy. C403.8,5 Fan controls. Controls shall be provided for fans in accordance with Section C403.8.5.1 and as C403.42,4 Exhaust system off -hour controls. For all occupancies other than Group R, exhaust systems required for specific systems provided in Section C403. serving spaces within the conditioned envelope shall be controlled by either an adomadc time dock, C403.8.5.1 Fan airflow control. Each coaling system listed in Table C403.8.5.1 shall be designed to vary thermostatic controls or programmable control system to operate on the same schedule as Ilia HVAC the indoor fan airflow as a function of load and shall comply with the following requirements: systems providing (heir makeup air. Exceptions: 1. Direct expansion (DX) and chilled water cooling units that cc" the capacity ofthe mechanical 1. Exhaust systems requiring continuous operation. cooling directly based on space temperature shall have not fewer than two stages Of fan control. Low 2. Exhaust systems that are controlled by occupancy sensor control configured with adornatic on and or minimum speed shall not be greater than 66 percent of full speed_ At low or minimum speed, the automatic shutoff w thin 15 minutes after occupants have left the space_ fan system shall draw not more than 40 percent of the fan power at full fan speed. Low or minimum speed shall be used during periods of low cooling load and ventilation -only operation_ C403A.11 Direct digital control systems. Direct digital control (DDC) shall be required as specified in 2_ Other units including DX coaling units and chilled water units that control the space temperature by Sections C403.4.11.1 through C403.4.11.3. modulating the airflow to the space shall have modulating fan control. Minimum speed shall be not C4113.4.11.1 DDC applications. DDC shall be provided in the applications and qualifications listed in Table greater than 50 percent of full speed. At minimum speed, the fan system shall draw no more than 30 C403.4.11_1_ percent of the power at full fan speed. Low or minimum speed shall be used during periods of low C403A.112 DDC controls. Where DDC is required by Section C403A_11.1. the DDC system shall be Cooling load and ventilation -only operation. caable of all of the following, as required to provide the system and zone control required in Sections p 3_ Units that include an airside economizer in accordance with Section C403.5 shall have not fewer than two speeds of fan control during economizer operation_ C403.2, C403.4.3, C403.5, and C403.6.3- 1. Monitoring zone and system demand for fan pressure, pump pressure, heating and coding. Exceptions: 2. Transferring zone and system demand information from zones to air distribution system controllers 1_ Modulating fan control is not required for chilled water and evaporative cooling units with fan and from air distribution systems to heating and cooling plant controllers. motors of less than 1 hp (0.746 kW) where the units are nit used to provide ventgation air and the indoor fan cycles with the load. C403A.I1.3 DDC display. Where DDC is required by Section C403.4.11.1 for new buildings, the DDC 2. Where the volume of outdoor air required to comply with the ventilation requirements of the system shall be capable of trending and graphically displaying input and output points. lnterrtafional Mechanical Code at low speed exceeds the air that would be delivered at the minimum speed defined in Section C403.8.5, the minimum speed shall be selected to provide the C403.5.1 Integrated economizer control. Economizer systems shall be integrated with the mechanical required ventilation air. coaling system and be configured to provide partial coding even where additional mechanical caolirig is required to provide the remainder of the cooling load. Controls shall not be capable of creatirg a false load in Table C403.8.5.1 the mechanical cooling system by limiting or disabling the economizer or any other means, such as hot gas Fan Control bypass, except at the lowest stage of mechanxaI cooling. Units that include an air economizer shall comply with the following: 1. Unit controls shall have the mechanical cooling capacity control interlocked with the air economizer controls such that the outdoor air damper is at the 100 percent open position when mechanical coaling is on and the outdoor air damper does not begin to close to prevent coil freezing due to minimum compressor run time until the leaving air temperature is less than 45'F (TC). 2. Direct expansion (DX) units with cooling capacity 65.000 Btu1H (19 kW) or greater of rated capacity Mechanical Cooling System Fan Motor Cooling Type Size Capacity DX cooling An t 42,DOD Btd h Chilled water and evaporative 2'/ hp Any coaling shall comply with the following: 2.1. DX units that control the capacity of the mechanical cooling directly based on occupied space temperature shall have not fewer than two stages of mechanical cooling capacity. C403.10 Construction of HVAC system elements. Ducts, plenums, piping and other elements that are part of 2.2. Other DX units, including those that control space temperature by modulating the airflow to the an HVAC system shall be constructed and irhsulated in accordance with Sections C403.10.I through space, shall be in accordance with Table C403.5.1. C403.10.3.1 C403.5.3. Air economizers. Air economizers shall comply with Sections C403.5.3.1 through C403.5.3.5. C403.10.1 Duct and plenum insulation and sealing, C403.5.3.1 Design capacity. Air economizer systems shall be configured to modulate euddoorad-and return air dampers to provide up to 100 percent Of the design supply air quantity as outdoor air for cooling. C403.5.32 Control signal. Economizer controls and dampers shall be configured to sequence the dampers C403.10,1,1 Ducts conveying outdoor air. Ducts, shafts and plenums conveying Outdoor airfrom the with mechanical coding equipment and shall nit be controlled by only mixed airtemperature. Air exterior of the building to the mechanical system shall meet all air leakage and building envelope insulation economizers on systems with cooling capacity greater than 65,000 Btulh shall be configured to provide requirements of Section C402, plus building envelope vapor control requirements from the iinterriafione; partial cooling even when additional mechanical cooling is required to meet the remainder of the cooling Suilding Code, extending continuously from the building extericirto an automatic shutoff damper or heating bad or ooelin i equipment. For the purposes of building envelope insulation requirements, duct surfaces shall be Exception: The use of mixed air temperature limit control shall be permitted for systems that are both i mulated with the minimum insulation values in Table C403.10.1.1- Duct surfaces included as part of the controlled from space temperature (such as single zone systems) and having cooling capacity less than building envelope shall not be used in the calculation of maximum glazing area as descri bed in Section 65.000 Btulh. C402.4.1. C403.5.3.3 Highaimit shutoff. Air economizers shall be configured to automatically reduce ouddoorair Exceptions: intake to the design minimum outdoor air quantity when outdoor air intake will no longer reduce coaling 1. Outdoor air ducts serving individual supply air units with less than 2,800 cfm of total su pply air energy usage_ Higlrlimit shutoff control types shall be chosen from Table C403.5.3.3. High -limit shutoff capacity, provided these are insulated to the minimum insulation values in Table C403.10.1.1_ control settings forthese control types shall be those specified in Table C403.5.3.3. 2. Unheated equipment moms with combustion air louvers, provided they are isolated from C403.5.3,4 Relief of excess outdoor air. Systems shall be capable of relieving excess outdoor airduriag conditioned space at sides, top and bollom of the room with R-11 nominal insulation. air economizer operation to prevent over -pressurizing the building_ The relief air outlet shall be located to avoid recirculation into the building. TABLE C403.10.1.1 C403.5.3.5Economizer dampers. Return, exhausVrelief and ouldcorairdampers used in economizers OUTDOOR AIR DUCTWORK INSULATION shall comply with Section C403.7.8. C403.5.5 Economizer faur detection and diagnostics (FDD). Air�_ooled unitary direct -expansion units with a cooling rapacity of 54,000 Btulh or greater listed in Tables C403.32(1) through C403.3.2(3) that are equipped with an economizer in accordance with Section C403.5 shall include a fault detection and diagnostics (FDD) system_ C403.7 Ventilation and exhaust systems. In addition to other requirements of Section C403 applicable to the provisions of ventilation air or the exhaust of air, ventilation and exhaust systems shall be in accordance with Sections C403.7.1 through C403.7.6. C403.7.8 Shutoff dampers, Mechanical openings shall be provided with shutoff dampers in accordance with Sections C403.7.8.1 t1hroughC403.7.8.4. C403.7.8,1 Shutoff dampers for building isolation. Outdoor air supply, exhaust openings and relief outlets and stairway and elevator hoistway shaft vents shall be provided with Class I motorized dampers. See Sections C403.10.1 and C403.10.2 for ductwork insulation requirements upstream and downstream of the shutoff damper_ Exceptions; 1. Gravity (nonmotoized) dampers shall be permitted in lieu of motorized dampers as follows: I.1. Relief dampers serving systems less than 5,000 cfm total supply shall be permitted in buildings less than three stories in height 1.2 Gravity (nonmotoized) dampers where the design outdoor air intake or exhaust capacity does rot exceed 400 cfhn (189 Lis). 1.3. Systems serving areas which require continuous operation for 24f7 occupancy schedules. 2. Shutoff dampers are not required in: 2.1. Combustion air intakes. 2.2. Systems serving areas which require continuous operation in animal hospitals, kennels and pounds, laboratories, and Group H, I and R occupancies. 2.3. Subduct exhaust systems or other systems that are required to operate continuously by tithe fniemaldorral Mechanical Code. 2.4. Type I grease exhaust systems or other systems where dampers are prohibited by the IntemarlorrW Mechanical Cade to be in the airstream. 2.5. Unconditioned stairwells or unconditioned elevator hoistway shafts tt►at are only connected to unconditioned spaces. C403.7.8.2 Shutoff dampers for return air. Return air openings used for airside economizer operation shall be equipped with Class I motorized dampers. C403.7.8.3 Damper leakage rating. Class I dampers shall have a maximum leakage rate of 4 cfmfftw (20.3 Lis x m2) at 1.0 inch water gauge (w.g.) (24-9 Pa) when tested in accordance with AMCA 5WD and shall be labeled by an approved agency for such purpose. Gravity (nonmotorized) dampers shall have an air leakage rate not greater than 20 cfmlg2 where not less than 24 inr-hes (610 mm) in either dimension and 40 dm.Tt2 where less than 24 inches in either dimension. The rate of air leakage shall be determined at 1.0 inch w.g. (249 Pa) when tested in accordance with AMCA 5000 for such purpose. The dampers shall be labeled by an approve agency. Gravity dampers for ventilation air intakes shall be protected from direct exposure to wind. Port of Edmonds - 120 Building 120 West Dayton Edmonds, WA Minimum Duct Duct Location and Climate Installed system Use Zone Airflow f Insulation- Nodes R-value •n Inside conditioned See Section C403.10.1.1 space and upstream of 4C and for additional Outdoor Air automalk shutoff 56 2 2860 CFM R 1B requirements damper Inside conditioned space and downstream Outdoor Air of aummah'cshutoff 4C 2 21300 CFM R-8 damper to HVAC unit or room See Exception 1 to Outdoor Air inside conditioned space 4C and 56 , 2D04 CFM R1`7 Section C403.10.1.1 for additional details C4103.10.1.2 Other supply and return ducts. All other supply and return air ducts and plenums shall be insulated with a minimum of R-6 insulation where located in unhconditioned spaces, and where located outside the building with a minimum of R-13 insulation in Climate Zone 4 and R-12 insulation in Climate Zone 5. Where located within a building envelope assembly, the duct or plenum shall be separated from the building exterior or unconditioned or exempt spaces by minimum insulation value as required for exterior walls. by Section C402.1.3. Exceptions: 1. where located within equipment. 2. Supply and return ductwork located in unconditioned spaces where the design temperature difiereace between the interior and exterior of the duct or plenum does not exceed 15'F (B'C) and insulated in accodance with Table C403.I0.1.2. Where located within conditioned space, supply ducts which convey supply air at temperatures less than 55'F or greater than 105'F shall be insulated with a minimum insulation Rvalue in accordance with Table G703.10.1.2. Exception: Ductwork exposed to view within a zone that serves that zone is not required to be insulated. Where located within conditioned space, return or exhaust air ducts that convey return or exhaust air downstream of an energy recovery media shall be insulated with a minimum f7-value in accordance with Table C403.10.1.2. All ducts, air handlers, and filter boxes shall be sealed. Joints and seams shall comply with Section 603.9 of the lrlfemationai Mechanical Cade. SIZE FSCM NO TABLE C403.10.1.2 SUPPLY, RETURN, FXHAUST, and RELIEFAIR DUCTWORK INSULATIDN Minimum Climate Installed Duct systern Duct Location and Use Duct Notes Zone Insulation Ryalue 0 Supply Air or Return Outside the building (outdoors and R� See Section C403.16.1.2 for Air exposed to weather)r details Supply Air or Return Unconditioned space (enclosed but 4C and See Section C403-10.1.2 for Air not in the building canditimed 56 R-a details envelope) Unconditioned space where the duct See IMC Section 603.12 for Supply Air or Return conveys air that is within 1VF of the 4C and R-3 3 additional requirements for Air air temperature of the surrounding 5B condensatim control at uncmditioned space ductwork Where located in a building envelope Duct or plenum is separated Supply Air or Return assembly 4C and R 1d from building envelope Air 56 assembly with the minimum insulation value Within conditioned space where the 4C and See Section C403-10.1.2 for Supply Air supply duct cmmys air that is less 5B R-3.3 de,a ils than 55`F or greater than 105'F Within oondhianed space that the duct See Section C403. 10.1.2 for Supply Air directly serves where the supply duct 4C and None dets ils conveys air that is less than 55'F or 5B greaser than 105'F Within conditioned space where the Supply Air supply dud ccmmys air that is 55 'F 4 5and None or greater and 105'F or less Within crJrditioned space. Return or Exhaust downstream of an energy recovery 4C R-8 Air media, upstream of an abtamahc shutoff damper Relief or Exhaust Air Conditimed space and downstream of 4C and R-lfr an automate shutoff damper 58 C403,10,2 Duct construction, Ductwork shall be constructed and erected in accordance with the International Mechanical Code. C403.10.2,1 Low-pressure duct systems. Longitudinal and transverse joints, seams and connections of supply and return ducts operating at a static pressure less than or equal to 2 inches water gauge (w.g.) (500 Pa) shall be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic -plus embedded - fabric systems Or tapes installed in accordance with the manufacturer's installation instructions. Pressure classifications specific to the duct system shall be clearly indicated on the construction documents in accordance with the intematbnea A?ectandeal Code. Exception: Continuously welded and locking -type longitudinal joints and seams on ducts operating at static pressures less than 2 inches water gauge (w.g.) (5W Pa) pressure classification. C403.10.3.1 Protection of piping insulation. Piping insulation exposed to weather shall be protected from damage, including that due to sunlight, moisture, equipment maintenance and wind, and shall provide shielding from solar radiation that can cause degradation of the material. Adhesives tape shall not be permitted. C403.13 (Commissioning. Mechanical systems shall be commissioned in accordance with Section C408 .. .'r . Daley 51 2 Braakett's Harrison House Daley SL 524 AV,. Landing .#� ,I_, q i Dernetris ,. 52d S� . 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M�Is Hemlock St Edmonhis Crty Park 4 In `I' Hemlock Way Hemlock Way 11.1 %, Erben Or The Mural 'A Laurel c 0Po- Seamont Ln Works, Inc. 15 3 _ Vicinity Map Equipment Schedule Tag Make Model Voltage PhaseHeatIng BTU output Cooling BTU output Min DA Max0A Design Airflow Efficency ESP Min ckt amp. Max potection Area Serving Filters Weight Ex. RTU-2-2 Remor RPD-200 208 1 160.000 NA Note 513,000 Note 5 3.000 - Note 4 Existing ex. 20 Atrium Existing 534 New RTU-2-2 Remor RDH-200 208 1 162.000 NA Note 513.000 Note 5 3.000 - Note 4 81�� 0.5 11.06 15 Atrium Z merV8 552 Ex. RTU-2-3 Carrier 50YC124 208 1 2 ton unit 2 ton unit Note 5 Note 5 800 - Note 4 Existing ex. 30130 C3 merV8 320 New RTU2-3 Trane 4,JVCC4024.A1000.A 208 1 22.000 24.600 Note 5 170 Note 51 80 800 - Note 4 14 Seer18 HSPF 0.5 19.4123 30125 C3 2" merV8 328 Ex. RTU-2-4 Carrier 50YC124 208 1 2 ton unit 2 ton unit Note 5 Note 5 800 - Note 4 Existing ex. 30130 B8 merV8 320 New RTU 2-4 Trane 4WCC4024.A1000.A 208 1 22.000 24.600 Note 5 170 Note 51 80 800 - Note 4 14 Seer18 HSPF 0.5 19.4123 30125 B8 2 merV8 328 Ex. RTU-2-5 Carrier 50YC124 208 1 2 ton unit 2 ton unit Note 5 Note 5 800 - Note 4 Existing ex. 30130 Boardroom merV8 320 New RTU 2-5 Trane 4WCC4024.A1000.A 208 1 22.000 24.600 Note 5 170 Note 51 80 800 - Note 4 14 Seer18 HSPF 0.5 19.4123 30125 Boardroom 2 rn 8 328 Ex. RTU-2-6 Carrier 50YC124 208 1 2 ton unit 2 ton unit Note 5 Note 5 800 - Note 4 Existing ex. 30130 B4 merV8 320 INew RTU 2-6 Trane 4:11.fCC4024.A1000.A 208 1 22.000 24.600 Note 5 170 Note 51 80 800 - Note 4 14 Seer18 HSPF 0.5 19.4123 30125 B4 2 merV8 328 Note 1: New rooftop units 2-3, 2-4. 2-5, and 2-6 are heat pumps with high efficient, low leak, modulating economizers - Rooftop unit 2-2 is a JI0F° outside air indirectfired gas make up air unit for atrium 'Ventilation Note 2: During occupied mode the outside air damperwill be at min. position. During unoccupied mode the outdoor air damper will be closed Note 3: Functional test all systems and provide a commissioning report as per WSNREC section C408 Note 4, Air balance main air flow to within +-10% of existing KvAC unit- Confirm existing before removing Note 5. Air balance outside airflow to within +10% of existing KV.AC unit - Confirm existing before removing Note 6: Install P trap on condensate drain Note 7:.All new equipment will have an economizer with low leak damper and pressure relief damper (title 24 economizer) Note 8. Per 2018 International existing building code, 706.2 .Addition or replacment of roofing or replacement of equipment- New HV.AC equipment weight increase is no more than 5� Note 9: Existing RTU-2-2 weight 534 lbs. New RTU-2-2 weight 552 lbs. APPROVED BY PLANNING Note 10: Existing RTUs -2-3. 2-4. 2-5. 2-6 weight 320 lbs. New RTU-2-3, 2-4. 2-5. 2-6 weight 328 lbs. K 1'�', _� 0 T: New Thermostat for all replaced RTUs - 7 day programmable thermostat with min. 5 degree deadband May 27 2021 Outside air calks: RTU-2-3. 2-4. 2-5. 2-6 - Office 600 square feet x .06 min. ventilation rate + 6 person x 5 CPO per person = 66 CHA total outside air each min. APPROVED PLANS MUST BE ON JOB SITE ALL WORK SUBJECT TO FIELD INSPECTION FOR CODE COMPLIANCE DWG NO M-1 City Of Edmonds Building Department Work MECHANICAL - 5 ROOFTOP UNITS Address 120 WEST DSYTON Owner PORT OF EDMONDS Approved Date 5-27-2021 Building Official Erit, C1a-� Permit Number BLD2021-0671 REV IDRAWN Kevin ISSUED 4-30-2021 1 SCALE 1 /411 = 1 r-Orr HVAC Notes/Schedules SHEET 1 OF 3 RECEIVED May 14 2021 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT DK Systems, Inc. PO Box 886 Burlington, WA 98233 PH 360-755-1555 FX 360-588-2418 IF�J HVAC Roof Plan Existing Roof Access Parking Parking Existing 40" parapet Existing HVAC no work Existing 40" parapet Existing HVAC no work Existing Equipment No Work Existir g Equipment — No Work Existing 40" parapet Parking Parking Existing 40" parapet Existing E Existing HVAC no work ipment — No rk Existing 40" parapet RTU-2-5 Be sure fresh air vents are at least 10' from plumbing and exhaust vents Disconnect/Remove existing HVAC unit —Install new HVAC Parking Unit — Reconnect to existing high voltage electrical and low voltage electrical — Replace thermostat i n space — Condensate drain per local code RTU-2-6 Be sure fresh air vents are at least 10' from plumbing and exhaust vents Disconnect/Remove existing HVAC unit — Install new HVAC Unit — Reconnect to existing high voltage electrical and low voltage electrical — Replace thermostat in space —Condensate drain per local code RTU-2-4 Be sure fresh air vents are at least 10' from plumbing and exhaust vents Disconnect/Remove existing HVAC unit — Install new HVAC Unit — Reconnect to existing high voltage electrical and low voltage electrical — Replace thernostat in space — Condensate drain per local code Existing Equipment — no work RTU-2-3 Be sure fresh air vents are at least 10' from plumbing and exhaust ® vents Disconnect/Remove existing HVAC unit — Install new HVAC Unit — Reconnect to existing high voltage electrical and low voltage electrical — Replace thermostat in space — Condensate drain per local code RTU-2-2 Be sure fresh air vents are at least 10' from plumbing and exhaust vents Disconnect/Remove existing HVAC unit — Install new HVAC Unit — Reconnect to existing high voltage electrical and low voltage electrical — Disconnect/reconnect existing gas piping - Replace thermostat in space Existing Equipment — No Work M,A Existing 40" parapet Parking Existing Equipment — no work Existing 40" parapet HVAC RTU NOTES: ATTACH MOUNTING BRACKET TO ROOF CURB BEFORE MOUNTING EQUIP. ATTACH MOUNTING BRACKET TO INSIDE TOP OF ROOF CURB A5 SHOWN USING 4 TEK 5CREW5. AFTER MOUNTING EQUIPMENT ON ROOF CURB, ATTACH BOTTOM OF BRACKET TO BASE RAIL OF EQUIP. A5 5HONN USING 4 TEK SCREW HARpWARE PACKAGE: 1 (4) 10 GAUGE STEEL ATTACHMENT BRACKETS A5 MANUFACTURED BY AES-INC. PHONE: 800-�86-0402 OR EQUIVALENT. (52) #10 TEK 5GREN5 (2) BRAGKFT5 ON EACH LONG SIDE OF CURB, EOUALLY SPACED. BRACKET LOGATIOP (TYPICAL OF 4) 56REN LOGATION5 (TYPIGAL OF 8) EQUIPMENT PLAN ROOFTOP UNIT OR FAN NEOPRENE 6A5KET HOOD NAILER TEK SCREW (TYPICAL) HOLD DOWN BRACKET, 5EE BLOW-UP BELOW ROOF CURB ROOF MEMBRANE 4 INSULATION. '—ROOF DECK BRACKET BLOW-UP RTU HOLD llOVIN E3RAGKET REV. I ate: oaiOlno R1 E3UILDINO I e � : �r� _rye MEGHAN.IGAL PLAN N ` Mechanical and ' 1 IM2.1 Electrical Engineers© PraiM-7g824 VV PFZ9ADE TP P VIENT RS:;IJIFED BY CDE RG TOP UNIT — STAY CLEI ,AAR C4E R FOR GLEAKIN s PANELS-SER ICE AV_E51- PITGR WITH ROff SLOPE TEFV+TE A5 PIPE SUf F'ORr Rt-MIF�ED BY LOCAL ADAY5T AS RE6I0IfZED FEE_XCME P5PPEIDIG4LAR_ LIRE ROOFTOP} UNIT COMDEK5ATE PIF M-5 DETAIL ti7 1O SCSALE Gas to Equipment Piping Detail Ball Union To Valve I� Appliance or Sediment Trap Equipment ISSUED 4-30-2021 SCALE 1 /8" = 1'-0't HVAC Plan SHEET 20F3 - er, __Awdd `71F !I F- irF AWL% - D F z - IP % 06 ■ XW_ ks dr- map. Wk AXA L ­k A.' k -7 Now= �A W pr -dill. LLJ IN" A NN - V:z AMbbs qfta• rt R w4k JNL - - L is 14r F OMEM 4%C