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REVIEWED BLD2023-0170+Manufacturer_Specifications_and_Installation_Instructions+2.10.2023_7.58.23_AM+3362691RECEIVED Feb 10 2023 TRANS® Submittal TYoPEDMoNDS DEVELOPMENT SERVICES DEPARTMENT Prepared For: MacDonald Miller BLD2023-0170 Date: February 01, 2023 Job Name: MMFS/SMC-Edmonds SCI RAID ONCOL Building Trane U.S. Inc. is pleased to provide the following submittal for your review and approval. Product Summary Qty Product 4 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A (13WC) Contractor to confirm adapter curb. REVIEWED BY CITY OF EDMONDS The attached information describes the equipment we propose to furnish for this project and is submitted for your approval. Submittal acceptance and return is a critical step, so please ensure submittals are returned with approval to release to production within 14 days of submittal date. Product performance and submittal data is valid for a period of 6 months from the date of submittal generation. If six months or more has elapsed between submittal generation and equipment release, the product performance and submittal data will need to be verified. It is the customer's responsibility to obtain such verification. © 2023 Trane Technologies All rights reserved MMFSSMC-Edmonds SCI RAD ONCOL Building S2 Heat Pump Option 02-01- 2023.docx Table of Contents ProductSummary...........................................................................................................................................................1 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A (13WC) (items Al - A3).......................................................................3 TagData....................................................................................................................................................................... 3 ProductData.................................................................................................................................................................3 ProductReport..............................................................................................................................................................4 MechanicalSpecifications............................................................................................................................................ 7 DimensionalDrawings.................................................................................................................................................. 9 Weight, Clearance & Rigging.....................................................................................................................................15 Field Installed Options - Part/Order Number Summary ..................................................Error! Bookmark not defined. 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A..............................................................Error! Bookmark not defined. MMFS/SMC-Edmonds SCI RAID ONCOL Building Tag Data - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A (13WC) (Qty: 4) February 01, 2023 Item Tag(s) Qty Description Model Number Al AHU-1 HP, AHU-2 HP 2 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A 4WCZ5024*1000 A2 AHU-3 HP 1 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A 4WCZ5048*1000 A3 AHU-4 HP 1 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A 4WCY5030*1000 Product Data - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A (13WC) All Units 208-230/1 /60 Single power entry kit (Field Installed) 1-2" Filter frame (Field Installed) Crankcase heater (Field Installed) Evaporator defrost control (Field Installed) Lifting lug kit (Field Installed) 1st yr Labor warranty whole unit Item: Al Qty: 2 Tag(s): AHU-1 HP, AHU-2 HP XL15 2 speed convertible package HP 2 Tons, 14 SEER 3.76/5.Okw 208/240/1 (Field Installed) Item: A2 Qty: 1 Tag(s): AHU-3 HP XL15 2 speed convertible package HP 4Tons, 14 /16 SEER 6.0/8.Okw 208/240/1 (Field Installed) Item: A3 Qty: 1 Tag(s): AHU-4 HP R-410A convertible heat pump 15 SEER 2.5 Tons, 14 SEER 3.76/5.Okw 208/240/1 (Field Installed) Equipment Submittal Page 3 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Product Report - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: Al Qty: 2 Tag(s): AHU-1 HP, AHU-2 HP /�`a Bddirg e: MMFS(SMC-Edmantls SCI RA00NCOL Project Name: S 2 H eat P ump Option UnitName. 13WC Result Name: AHU-1 HP Ship cycle Standard ship cycleM WW Refrigerant XL15 2 speed convertible package HP Cooling Capacity 2 Tons, 14 SEER ® LElectrical characteristics 208-230/1/60 Auxiliary gas heat Input el sea level No option selected ' Single phase heaters 3.76/5.Okw 208/240171 Three phase heaters No option selected t Wingle power entry kit Single power entry kit , Filter frame 1-2" Filter frame t Eputside air options Without fresh air , Crankcase heater Crankcase heater ,Mfionornizer relay kit No option selected , Evaporator defrost control kit Evaporator defrost control Lifting lug kit FV Lifting lug kit Thermostats No option selected Compressor parts warranty -A None ' Labor whole unit - first year 1 st yr Labor warranty whole unit Parts Less Compressor None Equipment Submittal Page 4 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Product Report - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A2 Qty: 1 Tag(s): AHU-3 HP /�`a Bddirg e: MMFS(SMC-Edmantls SCI RA00NCOL Project Name: S 2 H eat P ump Option UnitName. 13WC Result Name: AHU-3 HP Ship cycle Standard ship cycleM WW Refrigerant XL15 2 speed convertible package HP Cooling Capacity 4Tons, 14 /16 SEER ® LElectrical characteristics 208-230/1/60 Auxiliary gas heat Input el sea level No option selected ' Single phase heaters 6.018.Okw 208/240/1 Three phase heaters No option selected t Wingle power entry kit Single power entry kit Filter frame 1-2" Filter frame t Eputside air options Without fresh air A Crankcase heater Crankcase heater ,Mfionomizer relay kit No option selected Evaporator defrost control kit Evaporator defrost control Lifting lug kit FV Lifting lug kit Thermostats No option selected Compressor parts warranty None ' Labor whole unit - first year 1 st yr Labor warranty whole unit Parts Less Compressor None Equipment Submittal Page 5 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Product Report - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A3 Qty: 1 Tag(s): AHU-4 HP /�`a Bddirg e: MMFS(SMC-Edmantls SCI RA00NCOL Project Name: S 2 H eat P ump Option UnitName. 13WC Result Name: AHU-4 HP Ship cycle Standard ship cycleI WW Refrigerant XL15 Converrtible package heat Pump PKU Cooling Capacity 2.5 Tons, 14 SEER ® LElectrical characteristics 208-230/1/60 Auxiliary gas heat Input el sea level No option selected ' Single phase heaters 3.76/5.Okw 208/240171 Three phase heaters No option selected t Wingle power entry kit Single power entry kit , Filter frame 1-2" Filter frame t Eputside air options Without fresh air , Crankcase heater Crankcase heater ,MfiDnomizer relay kit No option selected , Evaporator defrost control kit Evaporator defrost control Lifting lug kit FV Lifting lug kit A Thermostats No option selected Compressor parts warranty None ' Labor whole unit - first year 1 st yr Labor warranty whole unit Parts Less Compressor None Equipment Submittal Page 6 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Mechanical Specifications - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: Al - A3 Qty: 4 Tag(s): AHU-1 HP, AHU-2 HP, AHU-3 HP, AHU-4 HP Single Source Power Entry This accessory when used with electric heat accessory shall allow single source power connection to unit and heater combination. Single source power entry kits shall have specific matching heaters(s). Kit shall include high voltage terminal blocks, fuse blocks and fuses, cut -to -length interconnecting wiring, and junction box (if required) to provide power sources with fuse protection as required for both the unit and accessory heater. Kit components shall install within the unit cabinet in the heater access section. Single source branch power circuit shall be protected and wired in accordance with local codes. 4WCZ5 General The units shall be horizontal airflow as shipped and convertible to downflow. All units shall be factory assembled, piped, internally wired and fully charged with refrigerant. Units shall be UL listed and carry a UL label. All units shall be factory run tested to check cooling operation, fan and blower rotation and control or TXV sequence. Units shall be designed to operate at ambient temperatures between 115 F and 55 F in cooling as manufactured. Cooling performance shall be rated in accordance with AHRI standards. 4WCZ5 Unit Casing All components shall be mounted in a weather -resistant steel cabinet with an enamel finish. Access panels shall be provided for unit controls and indoor coil and fans. Indoor air section compartment shall be completely insulated with fireproof, permanent, odorless glass fiber material. Knockouts shall be provided for utility and control connections. Drain connections shall be provided to accommodate indoor water runoff. 4WCZ5 Condenser Fan Direct -drive, draw thru propeller type. Weather -proofed permanent split capacitor fan motor shall have built-in thermal overload and permanently lubricated motor bearings. 4WCZ5 Compressor The compressor shall be hermetically sealed, high efficiency Climatuff two -stage compressors. Internal overcurrent and over temperature protection, internal pressure relief shall be standard. 4WCZ5 Indoor Coil Coils shall be internally finned or smooth bore 3/8" copper tubes mechanically bonded to configured aluminum plate fin as standard. Evaporator coil leak and pressure tested to 200 psig; condenser coil tested to 450 psig. 4WCZ5 Condenser Coil The Spine Fin condenser coil shall be continuously wrapped, corrosion resistant all aluminum with minimum brazed joints. This coil is 3/8" O.D. seamless aluminum tubing glued to a continuous aluminum fin. Coils are lab tested to withstand 2000.0 lb of pressure per square inch. The outdoor coil provides low airflow resistance and efficient heat transfer. The coil is protected on all four sides by louvered panels. 4WCZ5 Indoor Air Fan Direct -drive, forwardcurved, centrifugal wheel in a Composite Vortica Blower housing. Motor shall have thermal overload protection. Permanently lubricated motor bearings. Motor/blower assembly isolated from unit with rubber mounts. 4WCZ5 Refrigeration System All units shall have TXV in cooling and TXV in heating. Service pressure tap ports, and a refrigerant line filter dryer shall be standard. 4WCZ5 System Controls System controls include condenser fan, evaporator fan and compressor contactors. Electric Heaters Each heater assembly shall include power supply fusing if over 48 amps, automatic resetting limit switches and heat limiter for thermal protection. Heaters shall be provided with polarized plugs for quick connection to unit low voltage wiring. Electric heat modules shall be UL listed. 4WCY5 - General Equipment Submittal Page 7 of 22 MMFS/SMC-Edmonds SCI RAID ONCOL Building February 01, 2023 The units shall be horizontal airflow as shipped and convertible to downflow. All units shall be factory assembled, piped, internally wired and fully charged with refrigerant. Units shall be certified to UL Standard 1995. All units shall be factory run tested to check cooling operation, fan and blower rotation and control or TXV sequence. Units shall be designed to operate at ambient temperatures between 115.0 F and 55.0 F in cooling as manufactured. Cooling performance shall be rated in accordance with AHRI standards. 4WCY5 - Unit Casing All components shall be mounted in a weather -resistant steel cabinet with an enamel finish. Access panels shall be provided for unit controls and indoor coil and fans. Indoor air section compartment shall be completely insulated with fireproof, permanent, odorless fiber material. Knockouts shall be provided for utility and control connections. Drain connections shall be provided to accommodate indoor water runoff. 4WCY5 - Compressor The compressor shall be hermetically sealed, high efficiency scroll compressors. Internal overcurrent and over temperature protection, internal pressure relief shall be standard. Other features include centrifugal oil pump, low vibration and noise. 4WCY5 - Refrigeration System All units shall have refrigerant control. Service pressure tap ports and a refrigerant line filter shall be standard 4WCY5 - Evaporator Coil Internally enhanced 3/8" OD seamless copper tubing mechanically bonded to aluminum fins, factory pressure and leak tested at 480 - 650 psig. All units have TXV to control refrigerant flow. 4WCY5 - Condenser Coil The Spine Fin TM condenser coil shall be continuously wrapped, corrosion resistant all aluminum with minimum brazed joints. This coil is 3/8" OD seamless aluminum tubing glued to a continuous aluminum fin. Coils are lab tested to withstand 2000.0 lb of pressure per square inch. The outdoor coil provides low airflow resistance and efficient heat transfer. The coil is protected on all four sides by louvered panels. 4WCY5 - Indoor Air Fan Constant Torgue, forward -curved, centrifugal wheel in a Composite Vortica ® Blower housing. Motor shall have thermal overload protection and permanently lubricated motor bearings. Motor/blower assembly isolated from unit with rubber mounts. 4WCY5 - Outdoor Fan One direct -drive, statically and dynamically balanced propeller fan shall be used in a draw -through vertical discharge configuration. Permanently lubricated weather proof motor shall have built-in thermal overload protection. 4WCY5 - System Controls System controls include condenser fan, evaporator fan and compressor contactors. Accessories Roof 4WCY5 - Electric Heaters Each heater assembly shall include power supply fusing if over 48 amps, automatic resetting limit switches and heat limiters for thermal protection. Heaters shall be provided with polarized plugs for quick connection to unit low voltage wiring. Electric heat modules shall be UL listed. 4WCY5 - Single Source Power Entry This accessory when used with electric heat accessory shall allow single source power connection to unit and heater combination. Single source power entry kits shall have specific matching heater(s). Kit shall include high voltage terminal blocks, fuse blocks and fuses, cut -to -length interconnecting wiring, and junction box (if required) to provide power sources with fuse protection as required for both the unit and accessory heater. Kit components shall install within the heater cabinet in the heater access section. Single source branch power circuit shall be protected and wired in accordance with local codes. Equipment Submittal Page 8 of 22 MMFS/SMC-Edmonds SCI RAID ONCOL Building February 01, 2023 Dimensional Drawings - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: Al Qty: 2 Tag(s): AHU-1 HP, AHU-2 HP 71" 56" SECTION Y-Y TYPICAL (8) SIDES OF DOWNFLOW DUCT OPENINGS 3 8" 3 UNIT- BOTTOM PENETRATION VIEW I 171W 1 3/16" UNIT- BACK AND PENETRATION VIEW r )R <0.75—In» FEMALE NPT UNIT - LEFT SIDE VIEW 24V ENTRY 143/16" i I 11 3/8" 8 7/8" 70" SECTION X X TYPICAL (8) SIDES OF SIDEFLOW DUCT OPENINGS 4 5/8"J \5/16�"01 ER ENTRY 1 1/4"DIA. HOLE 1 3/8" DIA. KNOCKOUT " DIA. KNOCKOUT 4 1/4" OWER ENTRY 1 1/4" DIA. KNOCKOUT 5 13/8" DIA. KNOCKOUT 1 5/8" DIA. KNOCKOUT SINGLE POINT ENTRY 1 3/8" DIA. KNOCKOUT 1 5/8" DIA. KNOCKOUT 2 7/16" DIA. KNOCKOUT UNIT - RIGHT SIDE VIEW Equipment Submittal Page 9 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Dimensional Drawings - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: Al Qty: 2 Tag(s): AHU-1 HP, AHU-2 HP ELECTRICAL / GENERAL DATA POWER CONNECTION COMPRESSOR Model: 4 WCZ5024E1 Voltage Range: 208-230/1A60 Min. Circuit Am pacify: 19.5 Number 1 Max. Circuit Breaker 30.0 Phase: 1 Prot. Rtg. Recrnd: 30.0 Rated Load Amps: 11 7 EER/SEER 416 Locked RolorAmps: 58.3 EER2/SEER: 11.0/15.0 HSPF2 7.25 Noise Rating # : 66.8 OUTDOOR MOTOR INDOOR MOTOR REFRIGERANT Number: '1 Number: 05 Type: Horsepower: 0.08 Horsepower. VARIABLE Factory Charge Phase 1 Motor Speed (RPM): Circuit#t: Full Load Amps: 0.54 Phase 4 3 Locked RotorAmps: 0.82 Full Load Amps: 4 3 Locked Rotor Amps: HEATER SINGLE CIRCUIT POWER AMPACITY AND OVER CURRENT PROTECTION Model: BAYHTRV105 Single Power Entry Kit BAYSPEK061 Voltage: 208/240 Minimum CircuitAmpacity 52.0 Phase: 1 Maximum Over -Current Device 60.0 Heater Capacity (Kw): 3.76/5.0 Heater (Btu): 128000117100 Stage # 1: 3.76/5.0 Stage # 2: - MCA: 23126 1. Single Circuit Power fuses are supplied if required for unit and / or heater. MBS: 25130 2. Wiring requirements if unit and electric heaters are operated from a single circuit using a single power entry kit. NOTES: UNIT ONLY 1. Rated in accordance with A.H.R.I. Standard 210/240. 2. Rated in accordance with D.O.E. test procedure. 3. Rated in accordance with A.H.R.I. Standard 270. ELECTRIC HEATER ACCESSORY ONLY 4. Any powersuppty and circuits must be wired and protected in accordance with local electrical codes. 5. The MCAvalues listed are for electric heater only. 6. The MCAvalues listed are for electric heater only. 7. Field wire must be rated at least 75 C. 8. The HACR circuit breaker is for U.S.A. installations only. 9. For Canada installations reference only. Equipment Submittal Page 10 of 22 MMFS/SMC-Edmonds SCI RAID ONCOL Building February 01, 2023 Dimensional Drawings - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A2 Qty: 1 Tag(s): AHU-3 HP UNIT- TOP VIEW 11/ 6 T 1411/16" SECTION YY TYPICAL (8) SIDES OF DOWNFLOW DUCT OPENINGS 2 5/16" 3 3/8" 6" UNIT- BOTTOM PENETRATION VIEW X lute- 207/8" SECTION X-X TYPICAL (8) SIDES OF SIDEFLOW DUCT OPENINGS SUPPLY RETURN X 615/16" I--1711/16"--j j-1711/16-1-1215/1 UNIT - BACK AND PENETRATION VIEW 6" 3 3/4" FEMALE NPT UNIT - LEFT SIDE VIEW 24V 14 1/8" 11 5/16" 8 7/8" 1 4 5/8" 4 3/16" - \ `POWER ENTRY 1 1/8" DIA. HOLE 1 3/8" DIA. KNOCKOUT \ 1 5/8"DIA. KNOCKOUT OWER ENTRY 1 1/8"DIA. HOLE 1 3/8" DIA. KNOCKOUT 5 7/8" 1 5l8"DIA. KNOCKOUT SINGLE POINT ENTRY 1 3/8" DIA. HOLE 1 5/8" DIA. KNOCKOUT 2 7/16" DIA. KNOCKOUT UNIT - RIGHT SIDE VIEW Equipment Submittal Page 11 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Dimensional Drawings - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A2 Qty: 1 Tag(s): AHU-3 HP ELECTRICAL / GENERAL DATA POWER CONNECTION COMPRESSOR Model: 4 WCZ5048E1 Voltage Range: 208-230/1i60 M n. Circuit Am pacify: 34.2 Number 1 Max. Circuit Breaker 50.0 Phase: 1 Prot. Rtg. Recrnd: 50.0 Rated Load Amps: 21.2 EER/SEER 416.0 Locked RolorAmps: 96.0 EER2/SEER: 11.0/15.0 HSPF2 6.7 Noise Rating # : 71 OUTDOOR MOTOR INDOOR MOTOR REFRIGERANT Number: '1 Number: 0 Type. R-410A Horsepower: 0.16 Horsepower. .7575 LE VARIAB1 Factory Charge Phase 1 Motor Speed (RPM): Circuit #1: 8.8lb Full Load Amps: 0.9 Phase 6.8 Locked RotorAmps: 1.62 Full Load Amps: 6.8 Locked Rotor Amps: HEATER Model: BAYHTRV108 Voltage: 208/240 Phase: 1 Heater Capacity (Kw): 6.0/8.0 Heater (Btu): 20500/27300 Stage # 1: 6.0/8.0 Stage # 2: - MCA: 36141 MBS: 40/45 SINGLE CIRCUIT POWERAMPACITY AND OVER CURRENT PROTECTION Single Power Entry Kit BAYSPEK062 Minimum CircuitAmpacity 76.0 Maximum Over -Current Device 80.0 1. Single Circuit Power fuses are supplied if required for unit and / or heater. 2. Wiring requirements if unit and electric heaters are operated from a single circuit using a single power entry kit. NOTES: UNIT ONLY 1. Rated in accordance with A.H.R.I. Standard 210/240. 2. Rated in accordance with D.O.E. test procedure. 3. Rated in accordance with A.H.R.I. Standard 270. ELECTRIC HEATER ACCESSORY ONLY 4. Any powersuppty and circuits must be wired and protected in accordance with local electrical codes. 5. The MCAvalues listed are for electric heater only. 6. The MCAvalues listed are for electric heater only. 7. Field wire must be rated at least 75 C. 8. The HACR circuit breaker is for U.S.A. installations only. 9. For Canada installations reference only. Equipment Submittal Page 12 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Dimensional Drawings - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A3 Qty: 1 Tag(s): AHU-4 HP 1v1s 3/4" 9/16" SECTION Y-Y TYPICAL (8) SIDES OF DOWNFLOW DUCT OPENINGS 3 )R <0.75-In» FEMALE NPT UNIT - LEFT SIDE VIEW 16" 3 UNIT - BOTTOM PENETRATION VIEW I 171W 1 3/16" UNIT- BACK AND PENETRATION VIEW 24V ENTRY. 3" 143116" Y 11 3/8" 8 7/8" 4 5/8" 3 3/8"- 11/18 1 SECTION X X TYPICAL (8) SIDES OF SIDEFLOW DUCT OPENINGS POWER ENTRY 7/8" DIA. HOLE 1 3/8- DIA. KNOCKOUT 1 5/8" DIA. KNOCKOUT -POWER ENTRY 7/8" DIA. KNOCKOUT -5 1/16" 1 3/8" DIA. KNOCKOUT 1 5/8" DIA. KNOCKOUT SINGLE POINT ENTRY 1 3/8" DIA. KNOCKOUT 1 5/8" DIA. KNOCKOUT 2 7/16" DIA. KNOCKOUT UNIT - RIGHT SIDE VIEW Equipment Submittal Page 13 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Dimensional Drawings - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A3 Qty: 1 Tag(s): AHU-4 HP ELECTRICAL / GENERAL DATA POWER CONNECTION COMPRESSOR Model: 4 WCY5030A1 Voltage Range: 208-230/1A60 M n. Circuit Am pacity: 22.8 Number 1 Max. CircuitBreaker 35.0 Phase: 1 Prot. Rtg. Rec md: 35.0 Rated Load Amps: 141 EER/SEER - Locked RotorAmps: 73.0 Noise Rating # : 12.00/15.00 70.0 OUTDOOR MOTOR INDOOR MOTOR REFRIGERANT Number: '1 Number: 05 Type: 1,.10A Horsepower: 0.18 Horsepower VARIABLE Factory Charge Phase 1 Motor Speed (RPM): Circuit#1: 7.2 lb Full Load Amps: 0.9 Phase 4 3 Locked RotorAmps: 1.7 Full Load Amps: Locked Rotor Amps: HEATER SINGLE CIRCUIT POWER AMPACITY ANDOVER CURRENT PROTECTION Model: BAYHTRV105 Single Power Entry Kit BAYSPEK60 Voltage: 208240 Minimum CircuitAmpacity 49.0 Phase: 1 Maximum Over -Current Device 50.0 Heater Capacity (Kw): 3.7/5.0 Heater (Btu): 12,800/17,100 # of Stages: 1 Stage # 1: 3.7615.0 Stage # 2: N/A 1. Single Circuit Power fuses are supplied if required for unit and / or heater. MCA: 23.026.0 2. Wring requirements if unit and electric heaters are operated from a single circuit MBS: 25.0/30.0 using a single power entry kit. NOTES: UNIT ONLY 1. Rated in accordance with A.H.R.I. Standard 210/240. 2. Rated in accordance with D.O.E. test procedure. 3. Rated in accordance with A.H.R.I. Standard 270. ELECTRIC HEATER ACCESSORY ONLY 4. Any powersuppy, and circuits must be wired and protected in accordance with local electrical codes. 5. The MCAvalues listed are for electric heater only. 6. The MCAvalues listed are for electric heater only. 7. Field wire must be rated at least 75 C. 8. The HACR circuit breaker is for U.S.A. installations only. 9. For Canada installations reference only. Equipment Submittal Page 14 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Weight, Clearance & Rigging - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: Al Qty: 2 Tag(s): AHU-1 HP, AHU-2 HP NEV Wz W5 FR (lF (,RG\/ITV UNIT WEIGHT CORNER WEIGHT CENTER OF GRAVITY SHIPPING NET W1 W2 W3 W4 A B 442.0Ib W2.0Ib 134.0Ib '84.0 Ib 60.0Ib 94" '15 3116" 20" CLEARANCE TO COMBUSTIBLE MATERIAL RECOMMENDED SERVICE CLEARANCES/18" BOTTOM 0 UNIT WITH O.A. DAMPER/ECON. WITH 2 POS. DAMPER BACKSIDE 1" BACKSIDE 12" 30" LEFT SIDE 6" LEFT SIDE 36" 42" RIGHT SIDE 6" RIGHT SIDE 24" FRONT SIDE 12" FRONT SIDE 30" TOP 36" LIFTING LUG KITS FOUR REUSABLE LUGS IN EACH KIT ALLOW UNITS TO BE EASILY LIFTED TO ROOFTOP INSTALLATIONS. THESE LUGS SNAP (NO SCREWS REQUIRED) INTO SLOTS IN THE UNIT DRIP LIP CHANNEL. Equipment Submittal Page 15 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Weight, Clearance & Rigging - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A2 Qty: 1 Tag(s): AHU-3 HP NEV Wz W5 FR (lF (,RG\/ITV UNIT WEIGHT CORNER WEIGHT CENTER OF GRAVITY SHIPPING NET W1 W2 W3 W4 A B 665.0Ib '479.0Ib 152.0Ib '90.0 Ib 68.0Ib 115.0 Ib '16 5/16" 25" any CLEARANCE TO COMBUSTIBLE MATERIAL RECOMMENDED SERVICE CLEARANCE BOTTOM 0 UNIT WITH O.A. DAMPER/ECON. WITH 2 POS. DAMPER BACKSIDE 1" BACKSIDE 12" 30" LEFT SIDE 6" LEFT SIDE 36" 42" RIGHT SIDE 6" RIGHT SIDE 24" FRONT SIDE 12" FRONT SIDE 30" TOP 36" LIFTING LUG KITS FOUR REUSABLE LUGS IN EACH KIT ALLOW UNITS TO BE EASILY LIFTED TO ROOFTOP INSTALLATIONS. THESE LUGS SNAP (NO SCREWS REQUIRED) INTO SLOTS IN THE UNIT DRIP LIP CHANNEL. Equipment Submittal Page 16 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building February 01, 2023 Weight, Clearance & Rigging - 1.5-5 Ton Pkgd. Heat Pump Rooftop R-410A Item: A3 Qty: 1 Tag(s): AHU-4 HP W3 W4 FR (lF (,RG\/ITV UNIT WEIGHT CORNER WEIGHT CENTER OF GRAVITY SHIPPING I NET W1 W2 W3 W4 A B 468.0Ib '372.0Ib 134.0Ib '84.0Ib 60.0Ib 94.0Ib '1513/16" '20" CLEARANCE TO COMBUSTIBLE MATERIAL RECOMMENDED SERVICE CLEARANCE BOTTOM 0 UNIT WITH O.A. DAMPER/ECON. WITH 2 POS. DAMPER BACKSIDE 1" BACKSIDE 12" 30" LEFT SIDE 6" LEFT SIDE 36" 42" RIGHT SIDE 6" RIGHT SIDE 24" FRONT SIDE 12" FRONT SIDE 42" TOP 36" LIFTING LUG KITS FOUR REUSABLE LUGS IN EACH KITALLOW UNITS TO BE EASILY LIFTED TO ROOFTOP INSTALLATIONS. THESE LUGS SNAP (NO SCREWS REQUIRED) INTO SLOTS IN THE UNIT DRIP LIP CHANNEL. Equipment Submittal Page 17 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building AHU-1 AND AHU-2 LOW LEAK ECONOMIZER February 01, 2023 Weight: 83lbs (US) 37.65kg (Metric) Part Number ECC-IMP28GA-DYEB oMicrolmed" RTLJ AHU-1 & AHU-2 Submitted to: Approved by: Motes Economizer - Economizer - Ultra Low Leak Economizer, Convertible Orientation, Belimo Zip - Single/Multiple Speed Electromechanical, Enthalpy Sensor, Belimo Actuator. Painted Rain Hood With Aluminum Filter, Barometric Relief, All Necessary Panels And Hardware Included. Filters Are Field Supplied. Number of Filters Needed - (1) 25e x 16" X 1' Or (1) 25" x 16" x 2"- For Differential Return Air Enthalpy Sensor Please Order 9901-0345 (ECON-ZIP-TH) Sensor and a 1002-PRC- RA_13 Harness. Fke, Rod Ferd^ plied Filer 'I Bro„aHMc R 4N Hood RA Carper ro, RIN AIVI Hinged Q'APsserrCly N:noNell C�i pa.nuaa HOPES• certlllesthot the models 1- Fitter Racks Supplied 1Mrfl Economizer. GR1 aM N51 0- • Iarai-- rce—1 1� l— Fi Filters Are Feld Supplied the AMCA Seal. 2. For Heat Pump Applications A Field Supplied And Installed The rllling6 61MWll ar8 dosed nn txs+x and 24VaG - Spst Normally Open Relay Will Be Needed. . poced,res Ne,IMr„aw I„ - MicroMed Part Numbers: ecrordence wl,h AMCA (1) Relay - 99t11-5030 PubliwHon 511 a,d (4) Wre Leads - 9901-0134 of v,e AMCA CerUfieAen� "ALLOH' FCR 36N.OF CLE.4RArJGE'. T1w A e Progoma. T11r PMC,A C4rtIrRH I.'aringx h� l a1MA— toAF Leakage end Air VFR 1 h:Al 0R1FN rAr ION Pertomwnce rwtings, HON1LON rAL OHIEN IAI ION 14 ARY 1d91' 21250' 1I-SOT iTkOmmrcIISTMP gaMaMVNIof CdraMMnllM is ANo,[d llom lr•E`�CmEllm i,ul TM G—ft rill Nol 90 ]stles of O, Jmu—A M1-14 slIMnn OonfuM Maier Rerisim Owl PBpB Rgf&O'I OD01A M VNAM Resa.osTMagelZ OlsmMn�u.O, ClunpeAlMyTmo$atlro,Ibnsd Qfs4TS W1Rw1AM M-^n±o Fu.Miq Odnplov Indlanapolls_3035 N- BNadeland Ave., Indianapolis, IN 45226_800. Ir1MC.HVAC- Sparks_905 Southern Way, Sparks, MV 89431_900.W4.4MMC •• Longvlew_201 Kodak Blvd.. Longvltrw, TX 75602_903.248.4800 Equipment Submittal Page 18 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building AHU-3 LOW LEAK ECONOMIZER February 01, 2023 gMicroMed DaW Weight: "Itis (US) 37.E5kg (Metric)�I Par Number: ECG-IMP2SCA-DYEB RTV: Submitted to: Approved by: Noses: Economizer - Economizer - Ultra Low Leak Economizer, Convertible Orientation, Selimo Zip - SingleJMultiple Speed Electromechanical, Enthalpy Sensor- Belima Actuator. Painted Rain Hood With Aluminum Filter, Barometric Relief, All Necessary Panels And Hardware Included. Filters Are Field Supplied. Number of F- tcrs Needed . (1) 25" x 16" X 1' Or (1) 25" x 16" x 2". For Differential Return Air Enthalpy Sensor Please Order 9901-0345 tECOWZIPJH) Sensor and a 1002-PRC- RA_B Harness - rye, R—k FIEW&pplied Filer arunxyr¢ RIW Hood WAEanper N uGrcgu M Y-0b� m Higed C,AAeee" M,,tr %., C�hpa.nrian NOTES, certllles thin the models 1- Filler Racks Supplied wish Economizer. GR7 and N57 elroxn • IK,��n :ar�r�:ens�xl hu lwa, Fi hers Arc Feld Supplied me AMCA 4eel. 2. For Heat Pump Applications A Field Supplied And Installed based on Yg and 24Vac - Spst Normally Open Relay Will Be Needed- p1 • prrxed,res e,1o,r,red Ir, - MicroMed Part Numbers: —d—e wl,h AMCA (1)Relay -9901-5030 Publication51 and (4) Wire Leads - 9901-0134 1—MAYwink r�rlL111 x of me AMCA C.miN d "PLLOlh' FOR YAN. OF CLEARANCE" Retln9a Pr.W e, The AMCACartiRed hating. ho l aJm li— iaAir Leakage and Alr WERII[:At ORIFNIAHON Perfamtonca ratings, HOMONTAL ORIENTATION 14 dOtF 1-491' 21.251T 17.9ar TH GxmoHls TM1OP 000iq O' Nasser Rea . pp01A Pegg Rev- 0001A ...... indlanapolhs_3035 N. Snadeland Ave., Indianapolis, IN 46226_80a.MMG.HVAC -• Sparks 905 Southem Way, Sparks. NV 89431 800884.4MMC •- Longalew_201 Kodak BIYd., Longylew, TX 75602_903.248AB0a Equipment Submittal Page 19 of 22 MMFS/SMC-Edmonds SCI RAD ONCOL Building AHLI-4 LOW LEAK ECONOMIZER February 01, 2023 MicrvMetl Weight: 92lbs (US) 41.73kg (Metric) Number: ECC-IMP21LCA-DYE13 Rate AHU-4 Submitted to Approved by. INotes: Economizer - Economizer - Ultra Low Leak Economizer, Convertible Orientation, Belimo Zip - SinglelMultiple Speed Electromechanical, Enthalpy Sensor, Belimo Actuator. Painted Rain Hood With Aluminum Filter, Barometric Relief, All Necessary Panels And Hardware Included. Filters Are Field Supplied. Number of Filters Needed : (1 ) 20" x 18" x 1" & (1) 18" x 18" x 1" Or (1 ) 20" x 18" x 2" & (1 ) 18" x 1 a" x 2". For Differential Return Air Enthalpy Sensor Please Order 9901-0345 (ECON-ZIP-TH) Sensor and a 1002-PRC-RA_B Harness. Pd. wd, Reid ^ W.d Fli ter Hronxvr¢ Reber Hood RIAID—per NV-1r, Hinged Q'AAe rby NivolAnl C.,Potato. NOTES, eertllles thw d...dale 1- Fiber Racks Supplied LVidl Economizer. • GR1 And K51 41roNil Imrcle w� rr:en,I i., I,enr Fi hers Are Field S u ppl ied the AMCA 4eel. 2- For Heat Pump Applications A Field Supplied And Installed The mange etwwn era based on and 24Wac - Spst Normally Open Relay Mil Be Needed. a . pp p.oceu,rr arlwnied I., - MicroMed Part Numbers: .-.donee wIh AMCA (1) Relay -9AJ01-5030 P.Nicanon and (4) Wire Leads- 990"134 rlt off hre AMCACehlf de —ALLOW FOR 9fi1N. OF CLEARANCE" Ratinge Prrgi.s. The AHCACarOFed basing, Seal uN,licx to Air Leakage and Air VER M AL OHIFN FA F IGH HO W ONTAL OHIEN IAI ION Perfar.ence ratings. Z ld ddiT l d91' 21.2ST 17.5a7' Tra omnnwiornoammm O'Naovst copera�xai000r.o�muoennme:omccomnY mxTnocom�mc nr wi ee aseoweowoe u�ma.i vcmumcunnw comni. uahef R°„'lr", 0001A titaouo,n .o..no ngniwuera,w.-, o. core. a:m..mo.soPora as xsnrewma.cwrnn�r�.,..,n oya+ram. PmRawmo 0001A Indianapolis_3035 N. Shadeland Ave., iwianapoliS, IN 4CZ28_800.MMC.KVA0•- Sparks 905 Southern Way, SparlcS, NY 80431_800.884.411N1MC — L.ongview_201 Kodak Blvd., Longview, TX 15602_k3.248.4800 Equipment Submittal Page 20 of 22 N O N O T 16 i N LL >z_ Q ry m ry U ry LLJ H Q Q Q z Q N Q I Q Altru Tag: Approval: EXISTING CI_ 35 ors• — 24 1f8'- 10 SP8 4114' t, 1f4" �ruRN I� 53 118, — I a• � REw151orv5 DESCRIPTION INITIAL DRA W ING UPDATE NEW DD's 38 112' F -------------- ------------- ---------------- 12" �3511Y� .Y CURB SHOWN IS COI STANDARD CONFIGURATION COI RESERVES THE RIGHT TO CHANGE LAYOUT WITHOUT NOTIFICATION. IF CURB IS NEEDED IN A DIFFERENT CONFIGURATIONRwmovcR CDI MUST BE NOTIFIED PRIOR TO PLACING AN ORDER. OPERATIONAL HEIGHT OF CDI ADAPTER 15 3" LESS THAN OVERALL CURB HEIGHT SHOWN. iuFoiiiiailoi�c°"Ro`vsruusinieuEo«iixc_-3rtsltaxa s uosrxeuRrn. inc. 19 m��E 1-3025-3040 wEWY slusnxs euneoo 'VERIFY SIIPPiYAx6Pf111RN OPENING6 �NRwy Wtxnnces m�aa "" �� `` r•r-�* COM]CE'l1E® r ��"•; �I xwx.M�cuRFs.eerR , - f......�u_ 1886-2]LSP01 RRFRoryuue [URRYAEIGM G-RSI 52.10 Rye '� .� 1:11 �7 S WHRM (]iIRFI ArJAP7FRR07O('KK C:u RRS HFMN-8f19fi-.9MI]-HFMI N O N cz T i N LL m IY U IY w I— I Q Q M Q Attn: Tag: proval: �:S &4" 3M' Mans^ 3s,v,s" 33 9f16" d7 28 Wr- 2i n" 3' as ens" RC Itslq� DE$ jRP11ON CURB SHOWN IS COI STANDARD CONFIGURATION CDI RESERVES THE RIGHT TO CHANGE LAYOUT WITHOUT NOTIFICATION. IF CURB IS NEEDED IN A DIFFERENT CONFIGURATION CDI MUST BE NOTIFIED PRIOR TO PLACING AN ORDER. TM "n u lclOF . =a1or=„ ,K"� "y �r TME,svcric' ii OFMSla Ta DisTrsia KINC. AIL iIGFTSRE M9 rPr�nP� t l 1t n'����� -303�1-��41 `o " 1pk c�r— OPERATIONAL HEIGHT OF CDI ADAPTER IS 3" LESS THAN OVERALL CURB HEIGHT 5HOYYN. •VERIFY R ISTING CURB Co VERIFY SLP LYM! RETURNOPE"wes •ncT=AHYCHANQW rMs.�cLLe`accicRifolANIMa0OK •^•tla �� Ca11aCt uS + t -ik cps •-rdi�res.ro., ■!...- `...r �eazae-,aot Lu eF e6. 8fl.21 rv.•, Q >r N a LU Installation and Operations Manual Single Packaged Heat Pump, 15 SEER2 Two Stage, Convertible, 2 - 5 Ton, R-410A 4WCZ5024E1000A 4WCZ5036E1000A 4WCZ5036E3000A 4WCZ5036E4000A 4WCZ5048E1000A 4WCZ5048E3000A 4WCZ5048E4000A 4WCZ506OE1000A 4WCZ506OE3000A 4WCZ506OE4000A Note: "Graphics in this document are for representation only. Actual model may differ in appearance. " Note: "Unit specific Service Facts available online." Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment. May 2022 18-BB42D1-1 A -EN SAFETY SECTION Important— This document contains a wiring diagram, a parts list, and service information. This is customer property and is to remain with this unit. Please return to service information pack upon completion of work. HAZARDOUS VOLTAGE! Failure to follow this Warning could result in property damage, severe personal injury, or death. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. SAFETY AND ELECTRICAL HAZARD! Failure to follow this Warning could result in property damage, severe personal injury, or death. These servicing instructions are for use by qualified personnel only. To reduce the risk of electrical shock, do not perform any servicing other than that contained in these operating instructions unless you are qualified to do so. GROUNDING REQUIRED! Failure to inspect or use proper service tools may result in equipment damage or personal injury. Reconnect all grounding devices. All parts of this product that are capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened. UNIT CONTAINS R-410A REFRIGERANT! Failure to use proper service tools may result in equipment damage or personal injury. R-410A operating pressure exceeds the limit of R- 22. Proper service equipment is required. Service using only R-410A Refrigerant and approved POE compressor oil. SAFETY HAZARD! Operating the unit without the access panels properly installed may result in severe personal injury or death. Do not operate the unit without the evaporator fan access panel or evaporator coil access panel in place. ARNING! This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Important: Wear appropriate gloves, arm sleeve protectors and eye protection when servicing or maintaining this equipment. Important: Air filters and media wheels or plates shall meet the test requirements in UL 900. © 2 0 2 2 18-BB42D1-1A-EN Table of Contents Introduction, Unit Inspection and Specification ............................... 4 Introduction .............................. 4 Inspect Shipment ......................... 4 Product Specification ..................... 5 Charging in Cooling above 55°F OD Ambient ................................. 6 Determine Unit Clearances ................. 7 Review Location and Recommendation Information ................................. 9 Unit Installation ........................... 10 Ground Level Installation ................. 10 Rooftop Installation — Curb Mounting .............................. 10 Lifting and Rigging ................... 11 Rooftop Installation — Frame Mounting ............................... 12 Rooftop Installation — No Curb/ Frame .................................. 12 Ductwork Installation .................... 15 Attaching Downflow Ductwork to Roof Curb ........................... 15 Attaching Downflow Ductwork to Roof Frame............................... 15 Attaching Horizontal Ductwork to Unit ................................. 15 Condensate Drain Piping ................. 15 Air Filter Installation ..................... 15 Electrical Wiring ......................... 16 Unit Startup ............................... 18 Pre -Start Quick Checklist ................. 18 Starting the Unit in Cooling Mode......... 18 Starting the Unit in Heating Mode......... 18 Sequence of Operation ................... 19 Final Installation Checklist ............ 21 Maintenance ............................ 21 Owner Maintenance .................. 21 Service Maintenance ................. 21 Fault Detection ....................... 21 Pressure Curves ......................... 24 Indoor Fan Performance .................. 28 Refrigerant Circuit ....................... 30 Troubleshooting Chart ................... 31 Important Product Information ........... 32 18-BB42D1-1A-EN 3 Introduction, Unit Inspection and Specification Introduction Read this manual carefully before attempting to install, operate, or perform maintenance on this unit. Installation and maintenance should be performed by qualified service technicians only. This unit is listed by Underwriters Laboratory. Packaged units are designed for outdoor mounting with a vertical condenser discharge. They can be located either at ground level or on a roof in accordance with local codes. Each unit contains an operating charge of refrigerant as shipped. Extreme mounting kits are available for slab (BAYEXMK003A), utility curb (BAYEXMK00213) and perimeter curb (BAYEXMK001A) mountings. Inspect Shipment 1. Check for damage after the unit is unloaded. Report promptly to the carrier any damage found to the unit. Do not drop the unit. Important: To prevent damage to the sides and top of the unit when hoisting, use "spreader bars" see, "Rooftop Installation — No Curb/Frame," p. 12. 2. Check the unit's nameplate to determine if the unit is correct for the intended application. The power supply must be adequate for both the unit and all accessories. 3. Check to be sure the refrigerant charge has been retained during shipment. Remove the Compressor access panel to access the 1/4" flare pressure taps. 4. If this unit is being installed on a curb, verify that the correct curb is provided with the unit. • 4WCZ5024-036 use model BAYCURB050A, • 4WCZ5048-060 use model BAYCURB051A 5. If the unit is being hoisted, accessory kit BAYLIFT002A is recommended. It includes a kit of four (4) lifting lugs and instructions. Notes: • If practical, install any internal accessories to the unit at the shop. • The packaged units have been evaluated in accordance with the Code of Federal Regulations, Chapter XX, Part 3280 or the equivalent. "SUITABLE FOR MOBILE HOME USE. " 18-BB42D1-1A-EN Introduction, Unit Inspection and Specification Product Specification Model 4WCZ5O24E*OOOA 4WCZ5O36E*OOOA I 4WCZ5O48E*OOOA 4WCZ5O6OE*OOOA RATED Volts/PH/Hz * (1) 208-230/1/60, (3) 208-230/3/60, (4) 460/3/60 Performance Cooling BTUH(a) 23800 35200 47500 56500 Indoor Airflow (CFM) 800 1110 1625 1175 Power Input (KW) 1.98 3.03 4.12 5.12 EER2 / SEER2 BTU/Watt-Hr(b) 11.0/15.0 11.0/14.65 Sound Power Rating [d6(A)](c) 66.8 70.0 72 74 PERFORMANCE HEATING (High Temp.) BTUH (High/Low) 22800/16300 31000/22400 43000/32000 55500/37600 Power Input (KW) 1.89 / 1.40 2.75 / 2.02 3.48 / 2.49 4.62 / 3.26 (Low Temp.) BTUH (High/Low) 13600/7900 19400/11200 32000/17300 37600/19400 Power Input (KW) 1.70 / 1.31 2.64 / 2.09 3.20 / 2.44 4.20 / 3.15 HSPF2 (BTUH/Watt-Hr) 7.25 6.7 6.7 7.45 POWER CONN. - V/Ph/Hz * (1) 208-230/1/60, (3) 208-230/3/60, (4) 460/3/60 Min. Brch. Cir. Ampacity(d) LOCATED ON UNIT NAMEPLATE Fuse Size - Max. (amps) LOCATED ON UNIT NAMEPLATE Fuse Size - Recmd. (amps) LOCATED ON UNIT NAMEPLATE COMPRESSOR 2 STAGE SCROLL VOLTS/PH/HZ * (1) 208-230/1/60, (3) 208-230/3/60, (4) 460/3/60 R.L. Amps - L.R. Amps LOCATED ON UNIT NAMEPLATE OUTDOOR COIL - TYPE SPINE FIN Rows/F.P.I 2 / 24 Face Area (sq. ft.) 15.49 15.49 1 23.57 23.57 Tube Size (in.) 3/8 Refrigerant Control EXPANSION VALVE INDOOR COIL - TYPE PLATE FIN Rows/ F P.I 4/ 15 4/ 15 4/ 15 4/ 15 Face Area (sq. ft.) 3.5 3.5 5.0 5.0 Tube Size (in.) 3/8 Refrigeration Control EXPANSION VALVE Drain Conn. Size (in.) 3/4 FEMALE NPT OUTDOOR FAN - TYPE PROPELLER DIA. (IN.) 23.4 23.4 1 28.2 28.2 DRIVE/NO. SPEEDS DIRECT/ 1 CFM @ 0.0 in. w.g.(e) 2550 3020 4220 4700 Motor - HP/R. P. M 1/12 /810 1/6 /830 1/6 /830 1/4 /830 Volts/Ph/Hz * (1 or 3) 208-230/1/60, (4) 460/1/60 F.L. Amps/L.RAmps LOCATED ON UNIT NAMEPLATE INDOOR FAN - TYPE CENTRIFUGAL Dia. x Width (in.) 1Ox10 1Ox10 10x10 11x10 Drive/No. Speeds DIRECT/ VARIABLE CFM @ 0.0 in. w.g.(f) SEE FAN PERFORMANCE TABLE Motor - HP / R.P.M. 1/2 / VARIABLE 1 3/4 / VARIABLE 1 / VARIABLE Volts/Ph/Hz 208-230/1/60 F.L. Amps LOCATED ON UNIT NAMEPLATE FILTER/ FURNISHED NO Type Recommended THROWAWAY Recmd. Face Area (sq. ft)(9) 4.0 4.0 1 5.3 5.3 REFRIGERANT R-410 Charge (lbs.) LOCATED ON UNIT NAMEPLATE Subcooling 8° F 1100 F (a) Rated in accordance with AHRI Standard 210/240. (b) Rated in accordance with D.O.E. test procedure. (c) Sound Power values are not adjusted for AHRI 270-95 tonal corrections. (d) Calculated in accordance with currently prevailing Nat'l Electrical Code. (e) Standard Air - Dry Coil - Outdoor. (f) Standard Air - Dry Coil - Indoor (g) Filters must be installed in return air stream. Square footages listed are based on 300 f.p.m. face velocity. If permanent filters are used size per manufacturer's recommendation with a clean resistance of 0.05" W.C. 18-131342D1-1A-EN Introduction, Unit Inspection and Specification Charging in Cooling above 55°F OD Ambient If servicing the equipment requires system evacuation, then re -charge the system to the weight specified on the nameplate. Verify the system subcooling using the Subcooling Charging Table and, if necessary, adjust the charge using the procedure below. 1. For best results — the indoor temperature should be kept between 70°F to 80°F. Add system heat if needed. 2. Whenever charge is removed or added, the system must be operated for a minimum of 20 minutes to stabilize before accurate measurements can be made. 3. Measure Liquid Line Temperature and Refrigerant Pressure at service valved in the compressor compartment. 4. Locate your liquid line temperature in the left column of the table, and the intersecting liquid line pressure under the subcool value column, Add refrigerant to raise the pressure to match the table, or remove refrigerant to lower the pressure. Again, wait 20 minutes for the system conditions to stabilize before adjusting charge again. Note_ System charge shall never be more than 110% or less than 90% of nameplate charge. If specified subcooling cannot be achieved within those charge bounds, contact your Field Service Representative. 5. When system is correctly charged, you can refer to System Pressure Curves to verify typical performance. CHARGING BELOW 550F Evacuate system and weigh in nameplate charge or use factory charge. Correct subcooling may be verified when the temperature is above 55°F. R-410A Subcooling Charging Table Liquid Temperature Liquid Pressure g (OF) 10 (OF) (OF) PSIG 55 179 185 60 194 200 65 210 217 R-410A Subcooling Charging Table Liquid Temperature Liquid Pressure g (OF) 10 (OF) (OF) PSIG 70 228 235 75 246 254 80 266 274 85 286 295 90 308 317 95 330 340 100 354 364 105 379 390 110 406 417 115 434 445 120 463 475 125 493 506 Charging Below 550F OD Ambient in Heating Only 1. The Subcool Charging Method in cooling is NOT recommended below 55°F outdoor ambient. 2. The only recommended method of charging at outdoor ambients below 55°F, is to weigh in the charge in the heating mode. 3. Use Nameplate charge. 4. Check liquid line temperature and pressure (at the OD valves) to obtain a minimum of the subcooling shown in the subcooling table. 5. Add charge if the minimum subcooling as shown in the table is not obtained with the nameplate charge. 6. It is important to return in the spring or summer to accurately charge the system in the cooling mode at outdoor ambients above 55°F. CONTAINS REFRIGERANTI Failure to follow proper procedures can result in personal illness or injury or severe equipment damage. System contains oil and refrigerant under high pressure. Recover refrigerant to relieve pressure before opening system. 18-BB42D1-1A-EN Determine Unit Clearances Figure 1. Space on Sides Requirements n.TB [I I'll, SECTION X-X TYPICAL (8) SIDES OF SIDEFLOW DUCT OPENINGS J- 18.03 18.29 [23/321 [23/32] 14.2 19/161 25.40 [I] SECTION Y-Y TYPICAL (8) SIDES OF DOWNFLOW DUCT OPENINGS 19.0 [3/41 FEMALE NPT LEFT SIDE 2 - 3 TON Units 3.5 - 5 TON Units RECOMMENDED SERVICE CLEARANCE mm Inches W/ ECONOMIZER W/ ECONOMIZER BACK SIDE 305 [121 762 [301 305 [121 762 [301 LEFT SIDE 762 [301 914 [361 914 [361 1067 [421 RIGHTSIDE 610 [241 610 [241 - FRONT SIDE 1067 [42] 762 [301 - CLEARANCE TO COMBUSTIBLE MATERIAL mm Inches BOTTOM 0 0 BACK SIDE 25 [11 25 [11 LEFT SIDE 152 [61 152 [61 RIGHT SIDE 152 [61 152 [61 FRONT SIDE 305 [121 305 [121 TOP 914 [361 914 [361 DIMENSIONS mEn Inches A HEIGHT OF UNIT - TABLE NEXT PAGE BB CENTER OF GRAVITY - TABLE NEXT PAGE CC CENTER OF GRAVITY - TABLE NEXT PAGE DD -Depth 1093.72 [43-1/16] 1173.99[46-1/41 EE -Width 1284.99 [50-5/8] 1 1535.94 [60-1/21 FF 497.8 [19-5/8] 1 576.00 [22-11/161 M I Ur JIL.lC CENTER OF GRAVITY OUTLET FRONT SIDE BOTTOM SIDE 18-131342D1-1A-EN 7 Determine Unit Clearances Figure 2. Bottom and Back Duct Openings 1.9 X BOTTOM DUCT OPENINGS 24V ENTR 359.79 [141/32] 288.42 225.68 [11 I'1/32] [8-7/8] E 17.73 \-POWER ENTRY [4-5/81 28.58 [I I/8] DIA. KNOCKOUT 107.44 OWER ENTRY [ 4-I/4l 18.58 [I-I/81 DIA. KNOCKOUT I50 .30 4.93 [1-3/8]DIA. KNOCKOUT 0.01 [I-31/32] DIA. KNOCKOUT [5-15/I61 SINGLE POINT ENTRY RIGHT SIDE 5o'0 [1- 31832111 DIANNNNOC KOUT 62.71 [2-15/32] DIA. KNOCKOUT BACK DUCT OPENINGS (SURFACE AREA) BACK SIDE Height mm in PHYSICAL DIMENSIONS mm (in) A B C D E F G H I J K L M N 4WCZ5024 949.33 (37.37) 304.80 (12.0) 92.33 (3.63) 66.51 (2.62) 406.40 (16.0) 167.89 (6.61) 173.46 (6.83) 304.80 (12.0) 48.35 (1.90) 398.22 (15.67) 176.07 (6.93) 176.68 (6.95) 296.62 (11.67) 1155.45 (45.49) 4W CZ5036 381.00 4WCZ5048 1050.93 (41.37) 457.20 (18.0) 82.16 (3.23) 82.16 (3.23) (15.0) 244.09 (9.61) 325.49 (12.80) 381.00 (15.0) 86.25 (3.39) 449.02 (17.67) 176.07 (6.93) 329.58 (12.97) 372.82 (14.67) 1351.95 (53.22) 457.20 4WCZ5060 (18.0) Comer Weights KGILBS SHIPPING WEIGHT KG/LBS UNIT WEIGHT KG/LBS Center Of Gravity mm[nch] W1 W2 W3 W4 BB CC 4WCZ5024 60.8 [134] 38.1 [841 27.2 [601 42.6 [94] 200.5 [442] 168.7 [372] 401.3 [15.81 508 [201 4WCZ5036 60.8 [134] 38.1 [841 27.2 [601 42.6 [94] 200.5 [442] 168.7 [372] 401.3 [15.81 508 [201 4WCZ5048 1 68.9 [152] 40.8 [901 30.8 [681 52.2 [115] 275.6 [607] 217.5 [479] 414.0 [16.31 635 [251 4WCZ5060 1 80.3 [177] 47.6 [1051 35.8 [791 60.8 [134] 282.8 [623] 224.5 [495] 414.0 [16.31 635 [251 8 18-BB42D1-1A-EN Review Location and Recommendation Information Horizontal Airflow Units 1. Location of the unit must allow service clearance around it to ensure adequate serviceability, maximum capacity, and peak operating efficiency. 2. These units are designed for outdoor installation. They may be installed directly on a slab, wood flooring, or on Class A, B, or C roof covering material. The discharge air from the condenser fans must be unrestricted for a minimum of 3 feet above the unit. 3. Exhaust vents or other sources of contaminated air should not be near the unit's air inlet if outside air is to be introduced as make-up air or a ventilation feature is to be used. Contamination from exhaust vents or chimneys may also foul the condenser causing degraded performance. 4. Check the handling facilities to ensure the safety of personnel and the unit(s). 5. The unit must be mounted level for proper drainage of water through the drain holes in the base pan. 6. The unit should not be exposed to direct roof water runoff. 7. Flexible duct connectors must be of aflame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 8. Holes through exterior walls or roof must be sealed in accordance with local codes. 9. All fabricated outdoor ducts should be as short as possible. Clearances 1. The recommended clearances for single -unit installations are illustrated in "Determine Unit Clearances," p.7. 2. Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. 3. See the unit's nameplate for the absolute minimum clearance between the unit and any combustible surfaces. Down Airflow Units 1. Location of the unit must allow service clearance around it to ensure adequate serviceability, maximum capacity, and peak operating efficiency. 2. Refer to the Installation section for instruction on converting the supply and return airflow covers to down airflow. 3. The field assembled Roof Mounting Curb (BAYCURB050A or BAYCURB051A) or a field fabricated curb should be in place before the unit is hoisted to the roof top. The Roof Mounting Curb (frame) must be installed on a flat, level section of the roof (maximum of 1/4" per foot pitch) and provide a level mounting surface for the unit. Also, be sure to provide sufficient height above the roof to prevent water from entering the unit. 4. Be sure the mounting curb spans structural members (trusses) of the roof, thereby providing sufficient support for the weight of the unit, the curb, the duct(s), and any factory or field installed accessories. 5. The unit must be mounted level for proper drainage of water through the drain holes in the base pan. 6. Be sure the hole in the structure for the ducts is large enough to accommodate the fabricated ducts and the insulation surrounding them. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 7. Holes through exterior walls or roof must be sealed in accordance with local codes. 8. These units are design certified for outdoor installation. They may be installed directly on a slab, wood flooring, or on Class A, B, or C roof covering material. The discharge air from the condenser fans must be unrestricted for a minimum of 3 feet above the unit. 9. Exhaust vents or other sources of contaminated air should not be near the unit's air inlet if outside air is to be introduced as make-up air or a ventilation feature is to be used. Contamination from exhaust vents or chimneys may also foul the condenser causing degraded performance. 10. Check the handling facilities to ensure the safety of personnel and the unit(s). rIPArnnrPS 1. The recommended clearances for single -unit installations are illustrated in "Determine Unit Clearances," p.7. 2. Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. 3. See the unit's nameplate for the absolute minimum clearance between the unit and any combustible surfaces. 18-131342D1-1A-EN Unit Installation Note: The factory ships this unit for horizontal installation. Ground Level Installation 1. Place the unit on a pad the size of the unit or larger. The unit must be mounted level for proper drainage of water through the holes in the base pan. To attach the unit securely to the slab, use extreme mounting kit, BAYEXMK003A. The pad must not come in contact with the structure. Be sure the outdoor portion of the supply and return air ducts are as short as possible. Unit requires vibration support as indicated in Table 1, p. 12 2. Location of the unit must allow service clearance around it. Clearance of the unit must be given careful consideration. See "Determine Unit Clearances," p.7. Note: Any reduction of the unit clearances indicated in these illustrations may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. Important: 1 "clearance to combustible material for first three feet of air outlet duct length is required for 4WCZ506OE4 460V unit when an electrical heater is installed, see unit nameplate for details. For the other units, a minimum 0" clearance to combustible material shall be maintained on air outlet duct. the structure with at least two (2) inches of insulation and weatherproof. There must be a weatherproof seal where the duct enters the structure. 5. Do not expose the unit to direct roof water runoff. 6. Seal all holes through exterior walls in accordance with local codes. 7. Continue with the following installation sections to complete the installation: Ductwork, Filter and Electrical Wiring. Rooftop Installation — Curb Mounting Convert Horizontal Airflow to Down Airflow The factory ships the unit for horizontal airflow. Perform this procedure to convert it to down airflow: 1. Remove the three (3) sheet metal screws securing the supply air cover and the four (4) sheet metal screws securing the return air cover from the base of the unit. Remove the covers from the base. 2. Place the covers over the horizontal supply and return openings (painted side out). Align the screw holes, and secure using the same screws removed in step 1. Install Full Perimeter Roof Mounting Curb 1. Verify that the roof mounting curb is correct for the unit. There are two curbs depending on the unit cabinet sizes: • 4WCZ5024-036 use model BAYCURB050A, 3. Attach the supply and return air ducts to the unit as ' 4WCZ5048-060 use model BAYCURB051A explained in the ductwork Installation section. 2. Assemble and install the curb following the 4. Flexible duct connectors must be of aflame instructions in the Installer's Guide included with retardant material. Insulate any ductwork outside of the appropriate curb. Figure 3. Typical Ground Level Application Note: Use the extreme mounting kit BAYEXMKO02AA, to secure the unit to the slab. SIDING - RETURN SUPPLY - AIR DUCT AIR DUCT 1i EXTERIOR WALL INSULATE WEATHERPROOF OR RAIN SHIELD FLEXIBLE DUCT CONNECTORS OUTDOOR AIR DISCHARGE 0 SUPPORT PAD FOUNDATION 3/4" VIBRATION ISOLATORS, USE 7 ISOLATORS 10 18-BB42D1-1A-EN Unit Installation Figure 4. Converting Horizontal to Down Airflow HORIZONTAL SUPPLY SHEET , AIR COVER METAL SCREWS HORIZONTAL RETURN, AIR COVER Lifting and Rigging IMPROPER UNIT LIFT! Failure to properly lift unit could result in death or serious injury or possible equipment or property - only damage. Test lift unit approximately 24 inches to verify proper center of gravity lift point. To avoid dropping of unit, reposition lifting point if unit is not level. Important. Do not lift the unit without test lifting for balance and rigging. Do not lift the unit in windy conditions or above personnel. Do not lift the unit by attaching clevis, hooks, pins, or bolts to the unit casing, casing hardware, corner lugs, angles, tabs, or flanges. Failure to observe these warnings may result in equipment damage. 1. Before preparing the unit for lifting, check the unit dimension drawings for center of gravity for lifting safety ("Determine Unit Clearances," p. 7). Because of placement of internal components, the unit's weight may be unevenly distributed. Approximate unit weights are also provided in the unit drawings. Note: Unit rigging and hoisting requires accessory kit BAYLIFT002BA. It includes a kit of four (4) lifting lugs. 2. Insert the four lifting lugs in the openings provided in the drip lip on each end of the unit. A tap or jerk to the lug will overcome the interference that arises due to the dimple on the lug. IN mlmmmq_�� 3. When hoisting the unit, be sure that a proper method of rigging is used. Use slings and spreader bars for protection during lifting. Always test -lift the unit to determine the exact unit balance and stability before hoisting it to the installation location. 4. When the curb and air ducts have been properly installed, the unit is ready to be hoisted to the roof and set in position. Important: • To prevent damage to the sides and top of the unit when hoisting use "spreader bars". • The unit must be lowered into position. The P.V.C. rubber tape on the curb flange permits the unit to be repositioned if required without destroying the P.V.C. rubber seals affixed to the mounting curb. Placing the Unit on the Mounting Curb 1. The unit is designed with a perimeter drip lip that is lower than the unit base pan, see Table 2, p. 13. 2. Position the unit drip lip down over and in contact with the outside corner of the curb.. Continue to lower the unit on top of the curb, with the unit drip lip astraddle, and in contact with, both the end and side rail of the curb. The unit should now rest on top of the curb. Use the extreme mounting kit, BAYEXMK001A, to add additional hold down strength to the mounting. Note: The ductwork is installed as part of the curb installation. Do not attach ductwork to the unit and lower the unit with ductwork onto the curb. 18-131342D1-1A-EN 11 Unit Installation Table 1. Vibration Isolators/Snow Feet Locations Note: These views represent the base as viewed looking up from underneath the unit. Important: Unit requires vibration isolator support in the general areas shown. Locate 3/4"thick vibration isolators on the bottom of the basepan as illustrated by black dots for ground level pad applications. Modify vibration isolator location as necessary for frame and rail applications. Small Cabinet ****4024 - 4036 Rooftop Installation — Frame Mounting For rooftop applications using field fabricated frame and ducts use the following procedure: 1. Locate and secure the frame to the roof by bolting or welding. Frame must provide adequate center support via a cross member centrally located channel rail. See Table 5, p. 14. Vibration isolators should be installed as indicated in Table 1, p. 12, adjust as necessary for your frame. The isolators must be placed on base pan, not drip lip. Add flashing as required. Flashing must conform to local building codes. 2. Prepare the hole in the roof in advance of installing the unit. 3. Secure the horizontal or down airflow ducts to the roof. Refer to the previous Convert from Horizontal Airflow to Down Airflow section if conversion is needed. 4. All fabricated outdoor ducts should be as short as possible. 5. Place the unit on the frame. 6. The unit must be mounted level for proper drainage of water through the holes in the base pan. 7. Secure the unit to the frame. 8. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and then weatherproof. There must be a weatherproof seal where the duct enters the structure. 9. The unit should not be exposed to direct roof water runoff. 10. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings."Determine Unit Clearances," p 7 provide unit dimensions. Medium Cabinet ****4042 - 4060 12. Continue with the following installation sections to complete the installation: Ductwork, Filter, and Electrical Wiring. Rooftop Installation — No Curb/ Frame For roof top applications using field fabricated ducts and sleeper rails rather than a curb or frame, use the following procedure: 1. Locate and secure the sleeper rails to the roof by bolting (three (3) rails required). One on each end to support the edges of the unit and one across the center of the unit. The center rail must run inside both drip lips. Vibration isolators should be installed, adjust as necessary for your sleeper rails. The isolators must be placed on base pan, not drip lip. Add flashing as required. Flashing must conform to local building codes. 2. Prepare the hole in the roof in advance of installing the unit. 3. Secure the horizontal or down airflow ducts to the roof. Refer to the previous Convert from Horizontal Airflow to Down Airflow section if conversion is needed. 4. All fabricated outdoor ducts should be as short as possible. 5. Place the unit on the rails. 6. The unit must be mounted level for proper drainage of water through the holes in the base pan. 7. Secure the unit to the rails. 8. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and then weatherproof. There must be a weatherproof seal where the duct enters the structure. 9. No exposure to direct roof water runoff. 10. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 12 18-BB42D1-1A-EN Unit Installation 11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings. "Determine Unit Clearances," p. 7 provide unit dimensions. Table 2. Lifting and Rigging Table 3. Curb Dimensions -C- MAX. CURB WIDTH 12. Continue with the following installation sections: Ductwork, Filter and Electrical Wiring. Base of unit Drip lip on rest On top of perimeter of curb rails unit Spreader Bars „A„ Gasket Seal Drip Lip BAYLIFT002A Dimple Lift!n Lu 5 A —J—E gHL II II UNIT DOWNFLOW UNIT DOWNFLOW F RETURN OPENING K SUPPLY OPENING II II r7 II �II I-J— 1- (RECOMMENDED PERIMETER CURB RECESS) II II I �r X 1" RECOMMENDED FIELD CURB I I I / MTER IT0 TOP CURB FLANGE)-4 PLACES R— — — — — — — — — — — — — 2-7/8- G B - 2-7/8 `--FIELD CURB `—UNIT BASE PAN \-.8/8 X 1-5/8 UNIT ''D"" MAX. CURB LENGTH MITER 14 CORNERS) TOP VIEW OF UNIT BASE PAN VATH FIELD CURB BELOW FRM FROM W7462 REFERENCE ILLUSTRATION FOR A CUSTOMER SUPPLIED ROOF CURB MODEL A B C D I E I F G 1 H J I K I L 4 TC«,YC «,WC«,DC«018,024,030,03648-3/8 40-7/8 38-7/8 46-3/8 16 12 6-5/8 6-7/8 12 16 4 TC«,YC«,WC«,DC«042,048,060 1 58 143-718141-7/81 56 1 18 1 15 1 18 1 9-5/8 12-1/2 15 This drawing was prepared by the manufacturer in order to provide detail regarding job layout only. This drawing is not intended to be used as a basis to construct, build or modify the item depicted in the drawing. The manufacturer is not responsible for the unauthorized use of this drawing and expressly disclaims any liability for damages resulting from such unauthorized use. 18-BB42D1-1A-EN 13 Unit Installation Table 4. Typical Rooftop Horizontal Airflow Application with Frame Supply Air Return Air ` c \ Roof Flashing �\ Channel Iron Center ` Support (Center Support � �� Angle Iron Frame required on all frame applications). \ \� Table 5. Typical Rooftop Down Airflow Application with Frame - 5 5 5 - �5:,; ww �� Return Air / supply Air Roof Flashing Roof Flashing Channel Iron Center Support (center support required on all ,< frame applications). Angle Iron Frame 14 18-BB42D1-1A-EN Unit Installation Ductwork Installation Attaching Downflow Ductwork to Roof Curb Supply and return air flanges are provided on the roof curb for easy duct installation. All ductwork must be run and attached to the curb before the unit is set into place. Attaching Downflow Ductwork to Roof Frame Follow these guidelines for ductwork construction: Connections to the unit should be made with three (3) inch canvas connectors to minimize noise and vibration transmission. Elbows with turning vanes or splitters are recommended to minimize air noise and resistance. The first elbow in the ductwork leaving the unit should be no closer than two (2) feet from the unit, to minimize noise and resistance. To prevent leaking, do not attach the ductwork to the bottom of the unit base. Refer to the bottom example in the figure below. Figure 5. Attaching Down Airflow Ductwork AIR PROOF THIS SEAM UNIT BASE FIELD DUCT UNIT DUCT FLANGE AIR PROOF THIS SEAM UNIT DUCT FLANGE UNIT BASE FIELD DUCT AIR PROOF THIS SEAM UNIT BASE FIELD DUCT UNIT DUCT FLANGE UNIT BASE UNIT DUCT FLANGE WATERPROOF SEAM WITH BUTYL OR SILICONE NOT RECOMMENDED tFIELD DUCT Attaching Horizontal Ductwork to Unit All conditioned air ductwork should be insulated to minimize heating and cooling duct losses. Use a minimum of two (2) inches of insulation with a vapor barrier. The outside ductwork must be weatherproofed between the unit and the building. When attaching ductwork to a horizontal unit, provide a flexible watertight connection to prevent noise transmission from the unit to the ducts. The flexible connection must be indoors and made out of heavy canvas. Note: Do not draw the canvas taut between the solid ducts. Figure 6. Attaching Horizontal Airflow Ductwork UNIT EXTERIOR WEATHERPROOF THIS SEAM FIELD DUCT UNIT EXTERIOR WEATHERPROOF THIS SEAM FIELD DUCT Condensate Drain Piping A 3/4-inch female NPT condensate drain connection is provided on the evaporator access panel end of the unit. Provide a trap and fill it with water before starting the unit to avoid air from being drawn through. Follow local codes and standard piping practices when running the drain line. Pitch the line downward away from the unit. Avoid long horizontal runs. See Figure 7, p. 15. Note: Do not use reducing fittings in the drain lines. The condensate drain must be: • Made of 3/4" pipe size • Pitched 1/4" per foot to provide free drainage to convenient drain system • Trapped • Must be connected to a closed drain system unless the trap is properly vented Figure 7. Typical Condensate Drain Piping 3/4" PVC OR COPPER TUBING AND FITTINGS 1-1/2" MIN. 1-1/2" MIN. i a Air Filter Installation The packaged unit requires an air filter. The unit does not come with a factory installed filter rack in it, however, two filter frame accessories are offered that will allow the installation of a filter within the unit, BAYFLTR101 & BAYFLTR201. Otherwise afield supplied filter rack must be installed by the installer in the return duct work. Refer to table for field supplied filter racks. 18-BB42D1-1A-EN 15 Unit Installation Table 6. Filter Sizes (field supplied filter rack) Table 7. Power Wiring NOMINAL FILTER (a) SIZE FILTER UNIT CFM (Sq Ft) RESISTANCE ("W. C. ) 4WCZ5024 800 2.67 0.08 4WCZ5036 1200 4.00 0.08 4WCZ5048 11600 15.33 10.08 4WCZ5060 1 2000 1 6.67 1 0.08 a) Filters must be installed in the return air system. The above square footages are based on 300 F.P.M. face velocity. If permanent filters are used, size per mfg. Recommendation with clear resistance of 0.05"W C. Electrical Wiring Note: This unit is factory wired for 230V. See wiring diagram for 208V conversion. Electrical Connections Electrical wiring and grounding must be installed in accordance with local codes or, in the absence of local codes, with the National Electrical Code ANSI/NFPA 70, Latest Revision. Electrical Power It is important that proper electrical power be available for the unit. Voltage variation should remain within the limits stamped on the unit nameplate. Disconnect Switch Provide an approved weatherproof disconnect within close proximity and within sight of the unit. If disconnect must be mounted to the cabinet, the location shown in Table 9, p. 16 should be the only one considered. Over Current Protection The branch circuit feeding the unit must be protected as shown on the unit's rating plate. Power Wiring The power supply lines must be run in weather -tight conduit to the disconnect and into the side of the unit control box. Provide strain relief for all conduit with suitable connectors. Provide flexible conduit supports whenever vibration transmission may cause a noise problem within the building structure. 1. Remove the Control/Heat access panel. Pass the power wires through the Power Entry hole in the end of the unit. See Table 7, p. 16. 2. Connect the high voltage wires to the appropriate contactor terminals. Connect the ground to the ground lug on the chassis. See Table 9, p. 16. Ensure all connections are tight. Table 8. Power Connections Table 9. Mounted Disconnect Location 16 18-BB42D1-1A-EN Unit Installation PACKAGED HEAT PUMP UNIT UNIT CONT UNIT HEATER ARE I — 3 ------, 3--I I I I _ PO pAR IZED LUG I T C eozlre L I, T�— --- eu R ITLI r COMMON IDST STncE COMPRESSOR BK — — — ttLrADI V2 2ND STAGE COMPRESSOR PR BL Wt IST STAGE HEAT RD BR WH GR WH — — -- IWHI W2 IORI 01 2 STAGE HEAT YL R NIT LOW VOLTAGE A,EA Sw CHOV VALVE 24 VOLTSER OR D 3 PH 3PH P- TO— N.11 IH FIG. 1 a SINGLE POWER ENTRY --T-- ACCESSORY CONNECTIONS -- VxITDm xaL uxlr nEArEx AxcA I xxscTE TNI` r}}}}t c°ONCOO PR ROx _ NIREs CONTROL Li__________ _________ II II I I III III I Ir.R — , F SES — 1 sss I I I W. IK. Rr L_I IT _ SINGLE HPWWER ENTRY -- -- -- I F IG.2 1AT1R, TO, UNIT L. EA rE NOTE 7.8 our Iwxl wt I F IL AY T TO AL Control Wiring (Class II) I OUTDOOR THERMOSTAT ACCESSORY CONNECTIONS Low voltage control wiring should not be run in conduit with power wiring unless Class 1 wire of proper voltage rating is used. Route the thermostat cable or equivalent single leads of No. 18 AWG colored wire from the thermostat subbase terminals through the rubber grommet on the unit. See "Determine Unit Clearances," p. 7 for the control entry (24V Entry) location. Make connections as shown on the wiring diagrams. Do not short thermostat wires since this will damage the control transformer. Refer to the table below for recommended wire sizes and lengths for installing the unit thermostat. The total resistance of these low voltage wires must not exceed one (1) ohm. Any resistance in excess of 1 ohm may NOTES: 1. FUSED DISCONNECT SIZE, POWER WIRING AND GROUNDING OF EQUIPMENT MUST COMPLY WITH CODES. 2. BE SURE POWER SUPPLY AGREES WITH EQUIPMENT AND HEATER NAMEPLATE. 3. LOW VOLTAGE WIRING TO BE 18 AWG MINIMUM CONDUCTOR. 4. SEE HEATER NAMEPLATE FOR CURRENT RATING OF HEATER USED. 5. SEE UNIT AND HEATER DIAGRAM FOR ELECTRICAL CONNECTION DETAILS. 6. IF ELECTRIC HEATER ACCESSORY IS NOT INSTALLED OMIT THE ELECTRIC HEATER, ASSOCIATED POWER WIRES AND THE X2 THERMOSTAT WIRES. 7. FIG. 2 DEMONSTRATES CONNECTION OF THE OUTDOOR THERMOSTAT ACCESSORY ONLY. FOR FURTHER UNIT CONNECTION DETAILS REFER TO THE OTHER FIGURES. 8. THE W1 (WH) WIRE IS FIRST STAGE ELECTRIC HEAT. IF THE ELECTRIC HEATER ACCESSORY HAS TWO HEATING STAGES THE W2 (WH) WIRE IS SECOND STAGE ELECTRIC HEAT. 9. THE BAYSTAT033A OUTDOOR THERMOSTAT ACCESSORY KIT CONTAINS A THERMOSTAT AND A RELAY. THE RELAY IS NOT REQUIRED TO BE USED IN THIS APPLICATION. -LATER—COMPONENT WIRING I -- LINE V.l WIRINGr 24V. FIELD LINE V. WIRING rOUTDOOR WIRE ABBR COLOR COLOR DESIGNATION ABBR COLOR BK BLACK PR PURPLE BL BLUE RD RED SR BROWN WH WHITE GR GREEN YL YELLOW OR ORANGE cause the control to malfunction because of the excessive voltage drop. Table 10. Thermostat Wire Size and Maximum Length Wire Size Maximum Length (Ft) 18 75 16 125 14 200 Important_ Upon completion of wiring, check all electrical connections, including factory wiring within the unit, and make sure all connections are tight. Replace and secure all electrical box covers and access panels before leaving the unit or turning on the power to the unit. 18-131342D1-1A-EN 17 Unit Startup Pre -Start Quick Checklist ❑ Is the unit properly located and level with the proper clearances? See, "Determine Unit Clearances," p.7. ❑ Is the duct work correctly sized, run, taped, insulated, and weatherproofed with proper unit arrangement as shown in the ductwork installation section? ❑ Is the condensate line properly sized, run, trapped, and pitched and shown in the Condensate Drain Piping section? ❑ Is the filter of the correct size and quantity? Is it clean and in place? See Air Filter Installation section. ❑ Is the wiring properly sized and run according to the unit wiring diagram? ❑ Are all the wiring connections, including those in the unit tight? ❑ Has the unit been properly grounded and fused with the recommended fuse size? ❑ Is the thermostat well located, level, and correctly wired? See Electrical Wiring section ❑ Have the air conditioning systems been checked at the service ports for charge and leak tested if necessary? ❑ Do the condenser fan and indoor blower turn free without rubbing and are they tight on the shafts? ❑ Has all work been done in accordance with applicable local and national codes? ❑ Are all covers and access panels in place to prevent air loss and safety hazards? Starting the Unit in Cooling Mode Note_ See the section on Sequence of Operation for a description of the cooling operating sequence. To start the unit in the cooling mode, set the comfort control to COOL and to a setting below room temperature. The condenser fan motor, compressor and evaporator fan motor will operate automatically. Continuous fan mode during Cooling operation may not be appropriate in humid climates. If the indoor air exceeds 60% relative humidity or simply feels uncomfortably humid, it is recommended that the fan only be used in the AUTO mode. Operating Pressure Checks After the unit has operated in the cooling mode for a short period of time, install pressure gauges on the gauge ports of the discharge and suction line valves (behind the Compressor access panel). Check the suction and discharge pressures and compare them to the normal operating pressures provided in the unit's SERVICE FACTS. Note: Do not use the PRESSURE CURVES from the unit's SERVICE FACTS to determine the unit refrigerant charge. The correct charge is shown on the unit nameplate. To charge the system accurately, weigh in the charge according to the unit nameplate and check subcooling against the Subcooling Charging Table in the SERVICE FACTS. Voltage Check With the compressor operating, check the line voltage at the unit (contactor is located behind the Control access panel). The voltage should be within the range shown on the unit nameplate. If low voltage is encountered, check the size and length of the supply line from the main disconnect to the unit. The line may be undersized for the length of the run. Cooling Shut Down Set the comfort control to OFF or to a setting above room temperature. Important: De -energize the main power disconnect ONLY when servicing the unit. Power may be required to keep the heat pump compressor warm and to boil off refrigerant in the compressor. Starting the Unit in Heating Mode Note: See the section on Sequence of Operation for a description of the heat pump heating operating sequence. Check that all grills and registers are open and all unit access panels are closed before start-up. Set the comfort control above room temperature until achieving a first stage call for heat and set the fan to AUTO or ON. Heating Shut Down Set the comfort control to OFF or at a setting below room temperature. 18 18-BB42D1-1A-EN Unit Startup Sequence of Operation General Operation of the unit heating and cooling cycles is automatic when the system is set to HEAT or COOL (the optional automatic changeover thermostat, when set to AUTO, automatically changes to heat or cool with an appropriate room temperature change). The fan can be set to ON, causing continuous evaporator (indoor) fan operation or set to AUTO causing fan operation to coincide with heating or cooling run cycles. Continuous fan mode during cooling operation may not be appropriate in humid climates. If the indoor air exceeds 60% relative humidity or simply feels uncomfortably humid, it is recommended that the fan only be used in the AUTO mode. With the thermostat set to ON current is supplied to the control transformer (on 460v models the outdoor fan relay (ODF) is energized through normally closed contacts on the defrost control (DFC). COOLING MODE Thermostat call for cooling (2-stage thermostat) Call for 1st stage cooling only: With the room thermostat set to COOL and the fan set to AUTO, power is supplied from the room thermostat "0" terminal to the unit switchover valve coil (SOV) and the "0" terminal on the ECMC board. This energizes the switch -over valve (SOV) placing it in the position for cooling (it is in the position for heating when de - energized). On a call for cooling, power is supplied to the unit from the room thermostat (Y1) and (G) terminal. (Y1) provides power to the compressor contactor (CC), the defrost control (DFC) and the electronically commutated motor control (ECMC). (G) provides power to the (ECMC) for low speed (IDM) indoor fan motor operation. The energized compressor contactor (CC) completes the circuit to the compressor for 1 st stage (Low) operation and the outdoor single speed fan motor (ODM). The (G) signal energizes the (ECMC) for the indoor fan motor (ECM) to operate on low speed. The thermostat will continue to cycle the compressor and fans to maintain the desired temperature. Call for 2nd stage after 1st stage On a call for 2nd stage cooling, power is supplied from the room thermostat (Y2) terminal to the A/C rectifier (ACR) and the (ECMC). This energizes the (ACR) switching the compressor to 2nd stage (High) operation. The (ECMC) is energized for indoor fan motor (ECM) high speed fan operation. The room thermostat will continue to cycle the system between 1st and 2nd stage to maintain the desired temperature. HEATING MODE Thermostat call for heat (2-stage thermostat) Call for 1st stage heating only: With the room thermostat set to HEAT and the fan set to AUTO, no power is supplied from the room thermostat "0" terminal to the unit switchover valve coil (SOV) and the "0" terminal on the ECMC board. This leaves the switch -over valve (SOV) in the normal position for heating and is the signal for the (ECMC) to run at indoor fan speeds designed for heating. On a call for heating, power is supplied to the unit from the room thermostat (Y1) and (G) terminal. (Y1) provides power to the compressor contactor (CC), the defrost control (DFC) and the electronically commutated motor control (ECMC). (G) provides power to the (ECMC) for low speed (ECM) indoor fan motor operation. The energized compressor contactor (CC) completes the circuit to the compressor for 1 st stage (Low) operation and the outdoor single speed fan motor (ODM). The indoor fan motor (ECM) will operate on low speed. The room thermostat will continue to cycle the compressor and fans to maintain the desired temperature. Call for 2nd stage after 1st stage On a call for 2nd stage heating, power is supplied from the room thermostat (Y2) terminal to the compressor rectifier (ACR) and the (ECMC). This energizes the (ACR) switching the compressor to 2nd stage (High) operation. The (ECMC) is energized for indoor fan motor (ECM) high speed fan operation. The room thermostat will continue to cycle the system between 1st and 2nd stage to maintain the desired temperature. Supplementary Heat The supplementary electric heat is brought on when the indoor temperature drops below the thermostat setting. The thermostat provides power from the "W" terminal to the supplementary heater control circuit. Note that the fan relay (F) must have been energized. An outdoor thermostat may have been added to disallow the second stage (if provided) of electric heat above a selected outdoor temperature. If the outdoor temperature falls below the setting on the outdoor thermostat, this additional heater stage will come on. When the outdoor air temperature rises, and the outdoor T-stat setpoint is reached, the system will revert back to first stage electric heating. When the indoor ambient is satisfied, "W" contacts will open and the unit will revert back to the compressor only heating mode and then off. For emergency heat (use of supplementary electric heat only), an emergency (EMERG) heat switch is provided within the thermostat. When placed in the emergency heat position, it will disable the compressor, bypass the outdoor thermostats, if provided, and engage the supplementary electric heaters and indoor fan. Demand Defrost Operation 18-BB42D1-1A-EN 19 Unit Startup During the heating cycle, the outdoor coil may require a defrost cycle which is determined by the demand defrost control (DFC). This control continuously measures the outdoor coil temperature (CBS) and the outdoor ambient temperature (ODS-B) and calculates the difference or delta-T measurement. When the calculated delta-T is met, the demand defrost control (DFC) opens the circuit to the outdoor fan motor (ODM) and energizes the switch -over valve (SOV), placing the unit in the cooling mode to defrost the outdoor coil (on SCROLL bearing units only, the control will stop the compressor for a minimum of thirty (30) seconds). The outdoor coil temperature sensor (CBS) terminates the defrost cycle, or it times off after twelve (12) minutes in defrost, the (DFC) energizes the outdoor fan motor (ODM) and twelve seconds later de -energizes the (SOV), which returns the unit to the heating mode. Supplementary electric heat, if provided, is brought on to control indoor temperature during the defrost cycle. During this defrost cycle the indoor fan will run at the speed designated for 2nd stage cooling. Defrost Control The demand defrost control measures heat pump outdoor ambient temperature with a sensor located outside the outdoor coil. A second sensor located on the outdoor coil is used to measure the coil temperature. The difference between the ambient and the colder coil temperature is the difference or delta-T measurement. This delta-T measurement is representative of the operating state and relative capacity of the heat pump system. Measuring the change in delta-T determines the need for defrost. The coil sensor also senses outdoor coil temperature for termination of the defrost cycle. ECM Fan Motor Adjustments If the airflow needs to be increased or decreased, see the Airflow Table in the Service Facts. Information on changing the speed of the blower motor is in the Blower Performance Table. Blower speed changes are made on the ICM Fan Control mounted in the control box. The ICM Fan Control controls the variable speed motor. There is a bank of 8 dip switches located at the upper left side of the board. The dip switches work in pairs to match the cooling/heat airflow (CFM/TON), Fan off - delay options, and electric heat airflow adjustment. The switches appear as shown in Figure 8, p. 20. Figure 8. ECM Fan Control CFM SELECTION DIP LIGHT svvl I uHtzb 21C800796POI# CNT03600 00 1iiiiei J CFM FAN Y Y LO00 � FMBN R R O W3 (2 i1 Y YLO B G R W3 W2 )VI 44 3 Table 11. Cooling Off -Delay Options SWITCH SETTNGS SELECTION NOMINAL AIRFLOW 5 - OFF 6 - OFF NONE SAME 5-ON 6 - OFF 45 SECONDS 100%* 5 - OFF 6-ON 1.5 MINUTES 50% 5-ON 6-ON ** 50 -100% * -This setting is equivalent to the BAY24XO45 relay benefit. ** -This ENHANCED MODE selection provides a ramping up and ramping down of the blower speed to provide improved comfort, quietness, and potential energy savings. The graph below show the ramping process. 100% if necessary 2 Dehumidify z a 50 i 4 W a Z z Fast Coil Cooling a and Heating OFF 1 ��� ►� as required 1 ' 7.5 minute minutes s0 i Efficiency I- OFF f 3 minutes 20 18-BB42D1-1A-EN Unit Startup Final Installation Checklist Important. Perform a final unit inspection to be sure that factory tubing has not shifted during shipment. Adjust tubing if necessary so tubes do not rub against each other when the unit runs. Also be sure that wiring connections are tight and properly secured. ❑ Does the unit run and operate as described in the Sequence of Operation section in response to the room thermostat? ❑ Are the condenser fan and indoor blower operating correctly with proper rotation and without undue noise? ❑ Is the compressor operating correctly and has the system been checked with a charging chart? ❑ Has the voltage and running current been checked to determine if it is within limits? ❑ Has the thermostat been checked for calibration and the air discharge grills adjusted to balance the system? ❑ Has the ductwork been checked for air leaks and condensation? ❑ Has the furnace manifold pressure been checked and adjusted if necessary? ❑ Has the heating air temperature rise been checked? ❑ Has the unit been checked for tubing and sheet metal rattles? Are there any other unusual noises to be checked? ❑ Are all covers and panels in place and properly fastened? ❑ Has the owner been instructed on the proper operation and maintenance of the unit? Be sure to leave this manual with the owner. Maintenance Owner Maintenance Some of the periodic maintenance functions of the unit can be performed by the owner; this includes replacing the disposable or cleaning the permanent air filters, cleaning the unit cabinet, cleaning the condenser coil, and conducting a general unit inspection on a regular basis. Filters When the system is in constant operation, inspect the filters at least once each month. If the unit has disposable -type filters, replace them with new filters of the same type and size. Do not attempt to clean disposable filters. Note: It may be necessary to replace permanent filters annually if washing fails to clean the filter or if the filter shows signs of deterioration. Be sure to use the same type and size as was originally installed. Condenser Coil Be sure to keep all vegetation and debris away from the condenser coil area. Service Maintenance Cooling Season To keep the unit operating safely and efficiently, the manufacturer recommends that a qualified service technician check the entire system at least once each year or sooner if needed. The service technician should examine these areas of the unit: • filters (for cleaning or replacement) • motors and drive system components • economizer gaskets (for possible replacement) • safety controls (for mechanical cleaning) • electrical components and wiring (for possible replacement and connection tightness) • condensate drain (for proper sealing and cleaning) • unit duct connections (to see that they are physically sound and sealed to the unit casing) • unit mounting support (for structural integrity) • the unit (for obvious unit deterioration) Heating Season Complete the following unit inspections and service routines at the beginning of each heating season. • Visually inspect the unit to ensure that the airflow required for combustion and condenser coil is not obstructed from the unit. • Inspect the control panel wiring to verify that all electrical connections are tight and that the wire insulation is intact. Indoor Fan Motor Speed Tap Setting The units are factory set to medium speed. Fault Detection A fault condition is indicated by the flashing light on the defrost control board located inside the heat pump control box. In normal operation, the defrost control light will flash once each second. If the light is flashing more than once per second or not at all, refer to the Demand Defrost Control Checkout table. Permanent -type filters can be cleaned by washing them PIN Identification with a mild detergent and water. Make sure that the 1. TEST —COMMON (Shorting any of the other pins to filters are thoroughly dry before reinstalling them in this pin causes the function of the other pin to be the unit (or duct system). executed. Leaving this pin open results in the normal mode of operation.) 18-131342D1-1A-EN 21 Unit Startup 2. TST = Test (Shorting TEST —COMMON to this pin speeds up all defrost board timings.) 3. FRC_DFT = Forced Defrost (Short TEST_COMMON to this pin for two (2) seconds to initiate a forced defrost. Remove the short after defrost initiates.) Defrost Control Checkout Normal operation requires: • LED on board flashing 1 time/second. • 24V AC between R & B • 24V AC between Y & B with unit operating • Defrost initiation when FRC_DFT pin is shorted to TEST —COMMON pin. If a defrost control problem is suspected, proceed to the Demand Defrost Control Checkout table. 0 � e P/N LAeELA 0 P � BAR DDDC Oil 012 °J3C C M o 000 O FRC-DFT KEA . FF O TEST COM OO O TEST COIL ® ® 0 AMBIENT ^O O O O O T 0 00 000 P4 0 Test Sensors Using the chart below, locate (as close as possible) the actual sensor temperature. The measured resistance should be relatively close to the resistance value shown in the chart. Table 12. Demand Defrost Control Checkout Table Example: Sensor temp. = 19°F. Measured Resistance = 46K ohms This sensor is good since the measured value is relatively close to the chart value. 1 — Flash/ = Normal operation. Second 2 — Flashes/ = Fault A (Low LT): Inoperative compressor, Second loss of charge, open ambient sensor, shorted coil sensor. = Fault B (20 defrosts terminated on time) 3 —Flashes/ Fault C (High AT): SOV stuck in heating, Second shorted ambient sensor, open coil sensor, closed TXV, OD motor failure, OD fan on in defrost, undercharged unit. 4 — Flashes/ = Fault A & C or A & B Second For additional information consult Pub. No. 34-1001 Heat Pump Defrost Controls. TEMP (°F) RESISTANCE 86 7.85K 8.85K 81 75 10.24K 70 11.59K 65 13.14K 59 15.32K 55 50 16.93K 19.41K 45 22.20K 41 24.76K 36 28.45K 32 31.84K 25 37.50K 19 46.44K 14 53.94K 10 57.64K 5 67.06K 0 78.05K SYMPTOMS CHECKS YES/NO ACTIONS 1. LED off. 1 24V R-B &Y-B at board, with unit running? N Repair low voltage wiring. y Complete Check #2. 2• Short FRC_OFT pin to TEST -COMMON pin. Is defrost cycle initiated? N Replace defrost control. Y LED is bad but control will still function. 2. LED flashing very rapidly (greater than 4 times/ sec) or appears to be on continuously. TEST COMMON pin shorted to TST pin? Y Remove short. N Replace defrost control. 22 18-BB42D1-1A-EN Unit Startup Table 12. Demand Defrost Control Checkout Table (continued) SYMPTOMS CHECKS YES/NO ACTIONS OD Temp. below 490F.? OD Coil temp. Check refrigerant circuits for balanced 1. below 350F.? "Delta" T increasing N distribution of refrigerant if OD coil is frosting and delta T is not increasing. N Refer to SYMPTOM #1. 2. LED flashing? Y Complete Check #2. 3 Control does not initiate a 3• Check for 24V Y-B at board with unit N Repair low voltage wiring. normal defrost. running. Y Complete Check #3. 4. Check sensors for correct mounting Remount or replace sensor if necessary. (connection) and resistance. Short FRC_DFT pin to TEST N Replace defrost control. _COMMON 5. pin. Is defrost cycle initiated? Y Y-B signal or control may be intermittent. 4 Control does not initiate a 24V R-B &Y-B at board with unit running? N Repair low voltage wiring. Y Replace defrost control. forced defrost. 5. Defrost initiates manually butterminates in less than 10 seconds. Replace defrost control. 1 Coil sensor circuit open or reading at a Y Replace coil sensor. very high resistance? 6 Defrost initiates manually but 2 Does OD fan cycle off in defrost? N Replace defrost control. terminates on time. 3. Windy weather preventing normal termination? 1. Be sure OD coil is clean. N Complete Check #2. 2. Coil sensor open or reading a very high Y Replace coil sensor. Defrost initiates on resistance? 7. approximately 15/25 minute intervals. Ambient sensor reading less than N Complete Check #3. 3' normal? Y Replace ambient sensor. 4. OD fan off in defrost? N Replace defrost control. 1. TEST -COMMON pin shorted to TST pin? Y Remove short. Replace defective sensor (Clear coil and re 2. Do both sensors check OK? N gency heat light). Y Complete SYMPTOM #3. Defrost initiates on 3. Verify correct system charge. Adjust as needed. 8. approximately 30/45 minute intervals. 4. Verify a "forced defrost" terminates less N Replace defrost control. than 15 minutes. 5. OD fan motor off in defrost. See SYMPTOM #9. 6. Verify proper SOV operation. Replace if necessary. 9. OD fan runs during defrost. Replace defrost control. Y The soft -switch time is defeated when 31 is No SOV delay on defrost 10. Has J1 been cut? cut. N Replace defrost control. termination. Y Check low voltage wiring for miswire. 11. ODS-A burned out. B to Tgreater than 10 volts? N Check for short in low voltage wiring. 1. 24V R-B at board & 24V Y-Bat board? N Repair low voltage wiring. 12. On SCROLL bearing units, compressor does not operate. 2• Check protective devices in YO circuit. 24V YO-B present after 30 seconds. N Y-B signal or control may be intermittent 13. On SCROLL bearing units, no 30 Check voltage between control terminals 2 second off delay at defrost and 7, force a defrost cycle. Is 24V present N Replace defrost control. initiation. for 30 seconds and OV thereafter? 18-131342D1-1A-EN 23 Unit Startup Pressure Curves Figure 9. 4WCZ5024E1 CoolingJ • . 80 0D 6 . 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ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ DISCHARGE OR SUCTION PRESSURE IN LEFT EXAMPLE: (1) OUTDOOR TEMP. 82 F. (2) INDOOR WET BULB 67 F. (3) AT INTERSECTIO SUCTION(4) DISCHARGE PRESSURE @ 1200 CFM IS 294 PSIG. DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART . 1550 CFM IS 147 PSIG. SUCTION• . OF DATUM ►[eltITIT111'W7iL1.10 26 18-BB42D1-1A-EN Unit Startup Figure 12. 4WCZ5060E Cooling Cooling with Thermal Expansion Valve INDOOR ENTERING WET BULB CURVES TOP .BOTTOM . 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741 743 744 744 743 742 740 737 - - Ton [722] [745] [747] [744] [742] [743] [744] [736] Setting High - 1059 1062 1063 1063 1062 1059 1057 1053 [1032] [1064] [1066] [1063] [1060] [1062] [1063] [1052] 400 CFM/ Low 825 837 843 844 844 842 839 836 Ton [830] [841] [842] [840] [839] [836] [836] [828] Setting High - 1179 1196 1204 1206 1205 1203 1199 1194 [1185] [1201] [1203] [1201] [1196] [1197] [1194] [1184] 450 CFM/ Low 975 964 959 957 953 949 945 945 Ton [976] [965] [964] [963] [956] [946] [941] [949] Setting High - 1394 1377 1371 1367 1362 1355 1350 1350 [1397] [1376] [1377] [1376] [1366] [1354] [1344] [1356] 4WCZ5048 EXTERNAL STATIC PRESSURE (IN.WG) Cooling CFM Horizontal [Downflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 - 954 973 977 973 966 957 950 944 - - 350 CFM/ T Low [948] [977] [977] [970] [969] [975] [979] [962] Setting High 1363 1390 1396 1390 1379 1368 1358 1349 - [1354] [1396] [1396] [1386] [1384] [1393] [1399] [1375] 1121 1106 1104 1106 1108 1108 1104 1097 - 400 CFM/ Ton Low [1102] [1106] [1109] [1113] [1116] [1119] [1120] [1118] Setting High 1601 1580 1577 1580 1583 1583 1577 1567 - [1574] [1580] [1585] [1589] [1594] [1599] [1601] [1597] 1223 1254 1268 1271 1268 1264 1261 1258 - 450 CFM/ Ton Low [1295] [1277] [1272] [1273] [1274] [1273] [1272] [1273] Setting High - 1747 1792 1811 1816 1812 1806 1801 1797 - [1851] [1824] [1817] [1818] [1820] [1819] [1817] [1819] 4WCZ5060 EXTERNAL STATIC PRESSURE (IN.WG) Cooling CFM Horizontal [Downflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 - 1163 1238 1259 1256 1246 1240 1237 1230 - - 350 CFM/ Ton Low [1259] [1219] [1208] [1207] [1206] [1199] [1188] [1185] Setting High 1662 1768 1799 1794 1780 1771 1767 1757 - [1799] [1742] [1726] [1725] [1723] [1712] [1698] [1692] 400 CFM/ Low 1443 1427 1422 1422 1423 1422 1418 1410 - T [1410] [1393] [1386] [1384] [1383] [1380] [1368] [1344] Setting High - 2062 2038 2031 2032 2034 2032 2025 2015 - [2015] [1990] [1980] [1977] [1976] [1971] [1955] [1920] 28 18-BB42D1-1A-EN Unit Startup Airflow with Auxilary Heat (CFM) SWITCH SETTINGS SELECTION NOMINAL AIRFLOW 4WCZ5024 4WCZ5036 4WCZ5048 4WCZ5060 7 - OFF 8 - OFF LOW 700 CFM 1050 CFM 1400 CFM 1750 CFM 7-ON 8 - OFF HIGH 800 CFM 1200 CFM 1600 CFM 2000 CFM 7 - OFF 8-ON HIGH 800 CFM 1200 CFM 1600 CFM 2000 CFM 7-ON 8 - ON HIGH 800 CFM 1200 CFM 1600 CFM 2000 CFM 18-BB42D1-1 A -EN 29 Unit Startup Refrigerant Circuit INDOOR COIL SWITCHOVER VALVE EXPANSION VAVLE BULB EXPANSION VAVLE BULB SCHRADER VALVE LO LPC�1:, i OUTDOOR � COIL � so` COIL i EQUALIZER E SCHRADER VALVE HI HPCO EQUALIZER 4EXPANSION CHRADERVALVE LIQUID INTERNALLY LIQUID CHECKED LINE EXPANSION VALVE Lj BI-FLOW DRIER INDICATES DIRECTION O_F REFRIGERATION FLOW Heating Refrigeration Cycle SWITCHOVER VALVE EXPANSION VAVLE BULB EXPANSION VAVLE BULB i INDOOR COIL SCHRADER — VALVE LO LPCO OUTDOOR o � colt sov COIL i EQUALIZER mvPe �4 LINE SCHRADER i VALVE HI HPCO i EQUALIZER DISTRIBUTOR LINE i SCHRADERVALVE LIQUID INTERNALLY CHECKED EXPANSIONVALVE INTERNALLY LIQUID CHECKED LINE \\ EXPANSION VALVE BI-FLOW DRIER INDICATES DIRECTION O_F REFRIGERATION FLOW Cooling Refrigeration Cycle 30 18-BB42D1-1A-EN Unit Startup Troubleshooting Chart P-PRIMARY CAUSES / S-SECONDARY CAUSES H Gl L o U) IM R 0 f0 O O O `" O >' c L C L O v f0 c L E L _ udi O O Vl aNi L s t7 '° i o J y v Z; M W M f0 L U a a 3 0 *' �' m c 3 ° c°� a d L a E v L °� d M a° u O t s a+ y v a R O V o+ v, c L O o O o c C m > 41 c G L Y dy p y SYSTEM FAULTS ci L C L0.: �p fa0 oOC L R L u M E U W y O y = y = O U V t a0+ � H a C > O U � * c c GJ C O � L ++ O v) Vl v += O U 7 f0 (A +0+ L O U U L OJ n V U a > 3 p� t7 i a o+ °C c 3 c o w a� °' v o x41 ~ U J p V J {� d w X LU Z d O y w M d D: REFRIGERANT CIRCUIT Liquid Pressure too High P S P S S Liquid Pressure too Low S P S S S Suction Pressure too High S P P S S Suction Pressure too Low S S P S Liquid Refrigerant Floodback (TXV System) S S P I.D. Coil Frosting P S P S Compressor Runs S P P S S S S P S Inadequate or No Cooling ELECTRICAL Compressor&O.D. Fan Do P P S S P P P Not Start Compressor will not Start P S P P P S but O.D. Fan Runs O.D. Fan will Not Start P P Compressor Hums but will P P P P S S Not Start Compressor Cycles on IOL P S P P P S P S P S S S S S S S I.D. Blower willnot Start P S S P P 18-BB42D1-1A-EN Important Product Information Packaged Unit Serial Number Packaged Unit Model Number Date of Installation Dealer Service Information Call your installing dealer if the unit is inoperative. Before you call, always check the following to be sure service is required: 1. Be sure the main switch that supplies power to the unit is in the ON position. 2. Replace any burned -out fuses or reset circuit breakers. 3. Be sure the thermostat is properly set. Service Phone About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com. The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org. The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices. 18-BB42D1-1A-EN 13May2o22 Supersedes (New) ©2022 Installer's Guide Single Packaged Heat Pump 15 SEER Convertible, 2-5 Ton 4WCY5024A1000A 4WCY503OA1000A 4WCY5036A1000A 4WCY5042A1000A 4WCY5048A1000A 4WCY506OA1000A Note: Graphics in this document are for representation only. Actual model may differ in appearance. Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment. June 2020 18-BB38D1-1 D-EN SAFETY SECTION Important— This document contains a wiring diagram, a parts list, and service information. This is customer property and is to remain with this unit. Please return to service information pack upon completion of work. HAZARDOUS VOLTAGE! Failure to follow this Warning could result in property damage, severe personal injury, or death. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. SAFETY AND ELECTRICAL HAZARD! Failure to follow this Warning could result in property damage, severe personal injury, or death. These servicing instructions are for use by qualified personnel only. To reduce the risk of electrical shock, do not perform any servicing other than that contained in these operating instructions unless you are qualified to do so. GROUNDING REQUIRED! Failure to inspect or use proper service tools may result in equipment damage or personal injury. Reconnect all grounding devices. All parts of this product that are capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened. UNIT CONTAINS R-410A REFRIGERANT! Failure to use proper service tools may result in equipment damage or personal injury. R-410A operating pressure exceeds the limit of R- 22. Proper service equipment is required. Service using only R-410A Refrigerant and approved POE compressor oil. SAFETY HAZARD! Operating the unit without the access panels properly installed may result in severe personal injury or death. Do not operate the unit without the evaporator fan access panel or evaporator coil access panel in place. ARNING! This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Important: Wear appropriate gloves, arm sleeve protectors and eye protection when servicing or maintaining this equipment. Important: Air filters and media wheels or plates shall meet the test requirements in UL 900. ©2020 18-BB38D1-1 D-EN Table of Contents Introduction ................................ 4 Step 2 — Determine Unit Clearances ....... 5 Step 3 — Review Location and Recommendation Information .............. 9 Step 4 — Unit Installation .................. 10 Step 5 — Unit Startup .................... 19 Sequence of Operation ................... 20 Maintenance ........................ 21 18-BB38D1-1D-EN Introduction Read this manual carefully before attempting to install, operate, or perform maintenance on this unit. Installation and maintenance should be performed by qualified service technicians only. This unit is listed by Underwriters Laboratory. Packaged units are designed for outdoor mounting with a vertical condenser discharge. They can be located either at ground level or on a roof in accordance with local codes. Each unit contains an operating charge of refrigerant as shipped. Extreme mounting kits are available for slab (BAYEXMK003A), utility curb (BAYEXMK002B) and perimeter curb (BAYEXMK001A) mountings. This guide is organized as follows: • Step 1 — Inspect Shipment • Step 2 — Determine Unit Clearances • Step 3 — Review Location & Recommendation Information • Step 4 — Unit Installation • Step 5 — Unit Startup • Sequence of Operation • Maintenance Step 1 — Inspect Shipment 1. Check for damage after the unit is unloaded. Report promptly to the carrier any damage found to the unit. Do not drop the unit. Important_ To prevent damage to the sides and top of the unit when hoisting, use "spreader bars". 2. Check the unit's nameplate to determine if the unit is correct for the intended application. The power supply must be adequate for both the unit and all accessories. 3. Check to be sure the refrigerant charge has been retained during shipment. Remove the Compressor access panel to access the 1/4" flare pressure taps. 4. If this unit is being installed on a curb, verify that the correct curb is provided with the unit. • 4WCY5024-036 use model BAYCURB050A, 4WCY5042-060 use model BAYCURB051A 5. If the unit is being hoisted, accessory kit BAYLIFT002A is recommended. It includes a kit of four (4) lifting lugs and instructions. Note: If practical, install any internal accessories to the unit at the shop. Note: The packaged units have been evaluated in accordance with the Code of Federal Regulations, Chapter XX, Part 3280 or the equivalent. "SUITABLE FOR MOBILE HOME USE. " 4 18-BB38M-1 D-EN Step 2 — Determine Unit Clearances 0 Figure 1. 2.0 — 3.0 Ton Models It 171.78 1/161 SECTION X-X TYPICAL (8) SIDES OF SIDEFLOW DUCT OPENINGS ff 14.22 18.03 [18.29 [23/32] 23/323 SECTION Y-Y TYPICAL (8) SIDES OF DOWNFLOW DUCT OPENINGS LEFT SIDE RECOMMENDED SERVICE CLEARANCE MM/IN. WITH ECONOMIZER BACK SIDE 304.8 1121 762.0 1301 LEFT SIDE 762.0 1301 914.4 1361 RIGHT SIDE 609.6 [241 - FRONT SIDE 1066.8 1421 - CLEARANCE TO COMBUSTIBLE MATERIAL MM/IN. BOTTOM 0 BACK SIDE 25.4 111 LEFT SIDE 152.4 163 RIGHT SIDE 152.4 16) FRONT SIDE 304.8 [121 TOP 914.4 1361 FRONT SIDE w BOTTOM SIDE D673945GO1- MI um 18-BB38D1-1 D-EN 5 Step 2 - Determine Unit Clearances Figure 2. 2.0 - 3.0 Ton Models [I6] INSIDE) BOTTOM DUCT OPENINGS YZl9 359, 79 1 T [14-5/321 288. 42 225. 68 1 [11-II/321 [8-7/81 108 58 ENTRY 117.73 28. 58 [I-I/8] DIA [4-5/8] POWER ENTRY 28. 58 [II/81 DIA 107. 44 34.93 [1--3/81 DIA KNOCKOUT [4-1/41 50. 01 [1-31/321 DIA. KNOCKOUT SINGLE POINT ENTRY 150.30 34. 93 [1-3181 DIA 15-15/161 51.11 [1-31/321 DIA. KNOCKOUT 62. 71 [2-15/32] DIA. KNOCKOUT RIGHT SIDE 6 406 40 RETURN S N I f NSIDE) SUPPLY 48. 35 [1-291121 398.22 76.07 [15-II/I61 16-15/161 OUTSIDE) BACK DUCT OPENINGS 55. 45 - [45-I/21 (SURFACE AREA) BACK SIDE 211. 62 [II-II/I6] (OUTSIDE) L 58.19 [2 9/321 - 176.68 6-31/321 118.22 115-11/161 (OUTSIDE) MODEL HEIGHT MM/IN. APPROX. CORNER WEIGHT - KG/LBS SHIPPING WEIGHT KG/LBS TOTAL UNIT WEIGHT KG/LBS CENTER OF GRAVITY MM/IN. A WI W2 W3 W4 B C 4TCY4024/030 898.53 135-3/81 56.7 11251 35.8 1791 25.4 1561 39.9 1881 201.6 14441 157.9 13481 401.3 115.81 508.0 120.01 4TCY5024 898. 53 135-3/81 51.8 11141 32.7 1721 23.2 1511 36.5 1801 176.0 13881 144.2 13181 401.3 115.81 508.0 120.01 4TCY4036 949.33 137-3/81 57.6 11271 36.3 1801 25.9 1571 40.8 1901 204.3 14501 160.6 13541 401.3 115.81 508.0 120.01 4TCY5030 949. 33 137-3/81 56.7 11251 35.81791 25.4 1561 39.9 1881 189.6 14181 157.9 13481 401.3 115.81 508.0 120.01 4TCY5036 949.33 137-3/81 57.4 11261 36.2 1801 25.7 1571 40.4 1891 191.4 14221 159.7 13521 401.3 115.81 508.0 120.01 4WCY4024/030 898. 53 135-3/81 57.6 11271 36.3 1801 26.3 1581 41.7 1921 205.7 14531 161.9 13571 401.3 115.81 515.6 120. 31 4WCY4036 949.33 137-3/81 60.8 11341 38.1 1841 27.2 1601 42.6 1941 212.5 14681 168.7 13721 401.3 115.81 508.0 120.01 4WC76036 949. 33 137-3/81 60.8 11341 38.1 1841 27.2 1601 42.6 1941 212.5 14681 168.7 13721 401.3 115.81 508.0 120.01 4WCY5024 898.53 135-3/81 57.6 11271 36.3 1801 26.3 1581 41.7 1921 205.7 14531 161.9 13571 401.3 115.81 515.6 120.31 4WCY5030/036 949. 33 137-3/81 60.8 11341 38.1 1841 27.2 1601 42.6 1941 212.5 14681 168.7 13721 401.3 115.81 508.0 [20.0] D673645GO1- 6 18-BB38D1-1 D-EN Step 2 — Determine Unit Clearances Figure 3. 3.5 — 5.0 Ton Models 7.78 161 SECTION X-X TYPICAL (8) SIDES OF SIDEFLOW DUCT OPENINGS 14.22 II 18.03 18. 29 [23/32] [23/32] T— SECTION Y-Y TYPICAL (8) SIDES OF DOWNFLOW DUCT OPENINGS M LEFT SIDE RECOMMENDED SERVICE CLEARANCE MM/IN. WITH ECONOMIZER BACK SIDE 304.8 1121 762.0 [301 LEFT SIDE 914.4 1361 1066.8 1421 RIGHT SIDE 609.6 1241 - FRONT SIDE 762.0 1301 - CLEARANCE TO COMBUSTIBLE MATERIAL MM/IN. BOTTOM 0 BACK SIDE 25.4 [I] LEFT SIDE 152.4 [61 RIGHT SIDE 152.4 [61 FRONT SIDE 304.8 [12) TOP 914.4 1361 OUTLET FRONT SIDE BOTTOM SIDE D6773946GOI-, 18-BB38D1-1 D-EN Step 2 - Determine Unit Clearances Figure 4. 3.5 - 5.0 Ton Models 381.00 [IS] 311 �4 D E I 112-91161 i7. 20 81 NSIDE) M [IS] (INSIDE) BOTTOM DUCT OPENINGS IN 359. 79 I T 114-5/321 288.42 225.68 1 CII-11/321[8-1/81 POWER ENTRY 117.73 28. 58 [I-I/81 DIA. [4-5/81 POWER ENTRY 28.58 CI-I/81 DIA. 34.93 [1-3/81 DIA. KNOCKOUT 109. 47 50.01 (1-31/321 DIA. KNOCKOUT [4-5/I61 SINGLE POINT ENTRY 34. 93 CI-3/81 DIA. 50.01 [I-31/32] DIA. 152.34 62.7I [2-I5/321 DIA. NNOCKOUT KNOCKOUT [61 RIGHT SIDE BACK SIDE t 372.82 [14-II/161 (OUTS I DE) 8] MODEL HEIGHT MM/IN. APPROX. CORNER WEIGHT - KG/LBS SHIPPING WEIGHT KG/LEI TOTAL UNIT WEIGHT KG/LBS CENTER OF GRAVITY MM/IN. A WI W2 W3 W4 8 C 4TCY4042/048A 949.33 137-3/81 76.2 11681 47.6 11051 35.8 1791 57.6 11271 275.6 16071 2 17. 3 14791 426.7 116.81 635.0 125.01 4TCY4048B 949.33 [37-3/81 78.0 C1721 49.4 [1091 37.6 [831 59.4 [1311 282.5 (623) 224.4 (4951 426.7 C16.81 635.0 (25.01 4TCY4060 1050.93 141-3/81 78.9 11741 46.7 11031 34.9 1771 59.1 11301 277.8 16121 219.5 14841 414.0 116. 31 635.0 125.01 4TCY5042 1050.93 C41-3/81 75.3 11661 47.6 11051 33.7 1741 53.0 11171 248.1 15471 209.6 14621 414.0 1I6. 31 635.0 125. 01 4TCY5048 1050.93 141-3181 79.0 11741 49.9 11101 35.4 1781 55.6 11231 258.5 15701 220.0 14851 414.0 116. 31 635.0 125.01 4TCY5060 1050.93 141-3/81 81.0 11791 51.2 11131 36.3 1801 57.0 11261 264.0 15821 225.4 14971 414.0 116. 31 635.0 125.01 4WCY4042/048A 949.33 [37-3/81 68.9 [1521 40.8 1901 30.8 [681 52.2 [1151 275.6 (607) 2 17. 5 14791 414.0 C16. 31 635.0 (25.01 4WCY4048B 949.33 137-3/81 78.0 11721 49.4 11091 37.6 1831 59.4 [1311 282.5 16231 224.4 14951 414.0 1I6. 31 635.0 125. 01 4WCY4060B 1050.93 C41-3/81 79.8 11761 50.8 11121 38.6 E851 60.8 11341 288.0 16351 230.0 15071 414.0 116. 31 635.0 125.01 4WCY4060A3 1050. 93 141-3/81 80.3 11771 47.6 11051 35.8 1791 60.8 11341 282.8 16231 224.5 14951 414.0 116. 31 635.0 125. 01 4WCZ6048 1050. 93 [41-3/81 68.9 [1521 40.8 [901 30.8 [681 52.2 [1151 275.6 (607) 2 17. 5 (4791 414.0 C16. 31 635.0 (25.01 4WCZ6060 1050.93 141-3/81 80.3 11771 47.6 11051 35.8 1791 60.8 11341 282.8 16231 224.5 14951 414.0 116. 31 635.0 125.01 4WCY5042/048 1050.93 C41-3/81 68.9 11521 40.8 1901 30.8 E681 52.2 C1151 275.6 1607) 217.5 14791 414.0 116. 31 635.0 125. 01 4WCY5060 1050.93 C41-3181 80.3 11771 47.6 11051 35.8 1791 60.8 11341 282.8 16231 224.5 14951 414.0 116. 31 635.0 125.01 D673946G01_revc 8 18-BB38D1-1 D-EN Step 3 — Review Location and Recommendation Information Caution must be taken at all times to avoid personal injuries and/or damage to equipment. Horizontal Airflow Units 1. Location of the unit must allow service clearance around it to ensure adequate serviceability, maximum capacity, and peak operating efficiency. 2. These units are designed for outdoor installation. They may be installed directly on a slab, wood flooring, or on Class A, B, or C roof covering material. The discharge air from the condenser fans must be unrestricted for a minimum of 3 feet above the unit. 3. Exhaust vents or other sources of contaminated air should not be near the unit's air inlet if outside air is to be introduced as make-up air or a ventilation feature is to be used. Contamination from exhaust vents or chimneys may also foul the condenser causing degraded performance. 4. Check the handling facilities to ensure the safety of personnel and the unit(s). 5. The unit must be mounted level for proper drainage of water through the drain holes in the base pan. 6. The unit should not be exposed to direct roof water runoff. 7. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 8. Holes through exterior walls or roof must be sealed in accordance with local codes. 9. All fabricated outdoor ducts should be as short as possible. Clearances 1. The recommended clearances for single -unit installations are illustrated in the "Determining Unit Clearances" section. 2. Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. 3. See the unit's nameplate for the absolute minimum clearance between the unit and any combustible surfaces. Down Airflow Units 1. Location of the unit must allow service clearance around it to ensure adequate serviceability, maximum capacity, and peak operating efficiency. 2. Refer to the Installation section for instruction on converting the supply and return airflow covers to down airflow. 3. The field assembled Roof Mounting Curb (BAYCURB050A or BAYCURB051A) or a field fabricated curb should be in place before the unit is hoisted to the roof top. Note: The Roof Mounting Curb (frame) must be installed on a flat, level section of the roof (maximum of 114" per foot pitch) and provide a level mounting surface for the unit. Also, be sure to provide sufficient height above the roof to prevent water from entering the unit. 4. Be sure the mounting curb spans structural members (trusses) of the roof, thereby providing sufficient support for the weight of the unit, the curb, the duct(s), and any factory or field installed accessories. 5. The unit must be mounted level for proper drainage of water through the drain holes in the base pan. 6. Be sure the hole in the structure for the ducts is large enough to accommodate the fabricated ducts and the insulation surrounding them. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 7. Holes through exterior walls or roof must be sealed in accordance with local codes. 8. These units are designed for outdoor installation. They may be installed directly on a slab, wood flooring, or on Class A, B, or C roof covering material. The discharge air from the condenser fans must be unrestricted for a minimum of 3 feet above the unit. 9. Exhaust vents or other sources of contaminated air should not be near the unit's air inlet if outside air is to be introduced as make-up air or a ventilation feature is to be used. Contamination from exhaust vents or chimneys may also foul the condenser causing degraded performance. 10. Check the handling facilities to ensure the safety of personnel and the unit(s). Clearances 1. The recommended clearances for single -unit installations are illustrated in "Determining Unit Clearances" section. 2. Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. 3. See the unit's nameplate for the absolute minimum clearance between the unit and any combustible surfaces. 18-BB38D1-1D-EN Step 4 — Unit Installation Note: The factory ships this unit for horizontal installation. To Install the unit at ground level: 1. Place the unit on a pad the size of the unit or larger. The unit must be mounted level for proper drainage of water through the holes in the base pan. To attach the unit securely to the slab, use extreme mounting kit, BAYEXMK003A. The pad must not come in contact with the structure. Be sure the outdoor portion of the supply and return air ducts are as short as possible. Unit requires vibration support as indicated in Table 1, p. 12. 2. Location of the unit must allow service clearance around it. Clearance of the unit must be given careful consideration. Note: Any reduction of the unit clearances indicated in these illustrations may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. Important: A minimum 0" clearance to combustible material shall be maintained on air outlet duct. 3. Attach the supply and return air ducts to the unit as explained in the Ductwork Installation section. 4. Flexible duct connectors must be of a flame retardant material. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and weatherproof. There must be a weatherproof seal where the duct enters the structure. 5. Do not expose the unit to direct roof water runoff. 6. Seal all holes through exterior walls in accordance with local codes. 7. Continue with the following installation sections to complete the installation: Ductwork, Filter and Electrical Wiring. Rooftop Installation — Curb Mounting Convert Horizontal Airflow to Down Airflow The factory ships the unit for horizontal airflow. Perform this procedure to convert it to down airflow: 1. Remove the three (3) sheet metal screws securing the supply air cover and the four (4) sheet metal screws securing the return air cover from the base of the unit. Remove the covers from the base. 2. Place the covers over the horizontal supply and return openings (painted side out). Align the screw holes, and secure using the same screws removed in step 1. Install Full Perimeter Roof Mounting Curb 1. Verify that the roof mounting curb is correct for the unit. There are two curbs depending on the unit cabinet sizes: • 4WCY5024-036 use model BAYCURB050A, 4WCY5042-060 use model BAYCURB051A 2. Assemble and install the curb following the instructions in the Installer's Guide included with the appropriate curb. Figure 5. Typical Ground Level Application Note: Use the extreme mounting kit, BAYEXMK003AA, to secure the unit to the slab. SIDING RETURN SUPPLY - AIR DUCT AIR DUCT EXTERIOR WALL INSULATE , dm WEATHERPROOF FLEXIBLE DUCT OR RAIN SHIELD CONNECTORS OUTDOOR AIR DISCHARGE J" Oy .. SUPPORT PAD Pto_e;., FOUNDATION Ai 3/4- VIBRATION ISOLATORS, USE 7 ISOLATORS 10 18-BB38D1-1 D-EN Step 4 — Unit Installation Figure 6. Converting Horizontal to Down Airflow Lifting and Rigging IMPROPER UNIT LIFT! Failure to properly lift unit could result in death or serious injury or possible equipment or property - only damage. Test lift unit approximately 24 inches to verify proper center of gravity lift point. To avoid dropping of unit, reposition lifting point if unit is not level. Important: Do not lift the unit without test lifting for balance and rigging. Do not lift the unit in windy conditions or above personnel. Do not lift the unit by attaching clevis, hooks, pins, or bolts to the unit casing, casing hardware, corner lugs, angles, tabs, or flanges. Failure to observe these warnings may result in equipment damage. 1. Before preparing the unit for lifting, check the unit dimension drawings for center of gravity for lifting safety. Because of placement of internal components, the unit's weight may be unevenly distributed. Approximate unit weights are also provided in the unit drawings Note_ Unit rigging and hoisting requires accessory kit BAYLIFT002BA. It includes a kit of four (4) lifting lugs. 2. Insert the four lifting lugs in the openings provided in the drip lip on each end of the unit. A tap or jerk to the lug will overcome the interference that arises due to the dimple on the lug. 3. When hoisting the unit, be sure that a proper method of rigging is used. Use slings and spreader bars for protection during lifting. Always test -lift the unit to determine the exact unit balance and stability before hoisting it to the installation location. 4. When the curb and air ducts have been properly installed, the unit is ready to be hoisted to the roof and set in position. Important_ To prevent damage to the sides and top of the unit when hoisting use "spreader bars ". Important_ The unit must be lowered into position. The P.V.C. rubber tape on the curb flange permits the unit to be repositioned if required without destroying the P.V.C. rubber seals affixed to the mounting curb. Placing the Unit on the Mounting Curb 1. The unit is designed with a perimeter drip lip that is lower than the unit base pan, see Table 2, p. 13 2. Position the unit drip lip down over and in contact with the outside corner of the curb.. Continue to lower the unit on top of the curb, with the unit drip lip astraddle, and in contact with, both the end and side rail of the curb. The unit should now rest on top of the curb. Use the extreme mounting kit, BAYEXMK001A, to add additional hold down strength to the mounting. Note: The ductwork is installed as part of the curb installation. Do no attach ductwork to the unit and lower the unit with ductwork onto the curb. 18-BB38D1-1D-EN 11 Step 4 — Unit Installation Table 1. Vibration Isolators/Snow Feet Locations Note: These views represent the base as viewed looking up from underneath the unit. Important: Unit requires vibration isolator support in the general areas shown. Locate 3/4"thick vibration isolators on the bottom of the basepan as illustrated by black dots for ground level pad applications. Modify vibration isolator location as necessary for frame and rail applications. Small Cabinet ****4024 - 4036 Rooftop Installation — Frame Mounting For rooftop applications using field fabricated frame and ducts use the following procedure: 1. Locate and secure the frame to the roof by bolting or welding. Three (3) sleeper rails are required. One on each end to support the edges of the unit and one across the center of the unit. The center rail must run inside both drip lips. Vibration isolators should be installed as indicated in Table 1, p. 12, adjust as necessary for your sleeper rails. The isolators must be placed on base pan, not drip lip. Add flashing as required. Flashing must conform to local building codes. 2. Prepare the hole in the roof in advance of installing the unit. 3. Secure the horizontal or down airflow ducts to the roof. Refer to the previous Convert from Horizontal Airflow to Down Airflow section if conversion is needed. 4. All fabricated outdoor ducts should be as short as possible. 5. Place the unit on the frame. 6. The unit must be mounted level for proper drainage of water through the holes in the base pan. 7. Secure the unit to the frame. 8. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and then weatherproof. There must be a weatherproof seal where the duct enters the structure. 9. The unit should not be exposed to direct roof water runoff. 10. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings. See unit dimensions. 12. Continue with the following installation sections to complete the installation: Ductwork, Filter, and Electrical Wiring. Medium Cabinet ****4042 - 4060 Rooftop Installation — Frame Mounting For roof top applications using field fabricated ducts and sleeper rails rather than a curb or frame, use the following procedure: 1. Locate and secure the sleeper rails to the roof by bolting (three (3) rails required). One on each end to support the edges of the unit and one across the center of the unit. The center rail must run inside both drip lips. Vibration isolators should be installed, adjust as necessary for your sleeper rails. The isolators must be placed on base pan, not drip lip. Add flashing as required. Flashing must conform to local building codes. 2. Prepare the hole in the roof in advance of installing the unit. 3. Secure the horizontal or down airflow ducts to the roof. Refer to the previous Convert from Horizontal Airflow to Down Airflow section if conversion is needed. 4. All fabricated outdoor ducts should be as short as possible. 5. Place the unit on the rails. 6. The unit must be mounted level for proper drainage of water through the holes in the base pan. 7. Secure the unit to the rails. 8. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and then weatherproof. There must be a weatherproof seal where the duct enters the structure. 9. No exposure to direct roof water runoff. 10. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings. See unit dimensions. 12. Continue with the following installation sections: Ductwork, Filter and Electrical Wiring. 12 18-BB38D1-1 D-EN Step 4 — Unit Installation Table 2. Lifting and Rigging Base of unit Drip lip on rest on top of perimeter of curb rails unit Spreader Bars II / „A„ 0 Gasket Seal „B„ 4v, Drip �� Lip AYLIFT002A Dim le Uftin Lu s Table 3. Curb Dimensions -C- MAX. CURB WIDTH A J E H L II II F UNIT DOWNFLOW UNIT DOWNFLOW RETURN OPENING K SUPPLY OPENING II LII II 1-1 II �II 1" IRECOMMENDED PERIMETER CURB RECESS) II II I 1" X 1" RECOMMENDED FIELD CURB I I l MITER (TO TOP CURB FLANGE)-4 PLACES — IELD CURB NIT BASE PAN -0- MAX. CURB LENGTH TOP VIEW OF UNIT BASE PAN WITH FIELD CURB BELOW REFERENCE ILLUSTRATION FOR A CUSTOMER SUPPLIED ROOF CURB 2-7/8"" G B 2-7/8- -1.5/8 X 1.5/8 UNIT MITER (4 CORNERS) MWED FROM D674152 024,030, 036 48-3/6 40-7/8 38-1/ 4%6/11I6 12 6-5/8 6-I/8 12 I6 4 DC«042,048,060 58 43-7/8 41-7/8 6 IS IS 18 9-5/8 12-I/2 IS This drawing was prepared by the manufacturer in order to provide detail regarding job layout only. This drawing is not intended to be used as a basis to construct, build or modify the item depicted in the drawing. The manufacturer is not responsible for the unauthorized use of this drawing and expressly disclaims any liability for damages resulting from such unauthorized use. 18-BB38D1-1 D-EN 13 Step 4 — Unit Installation Table 4. Typical Rooftop Horizontal Airflow Application with Frame Supply Air Return Air ` c \ Roof Flashing �\ Channel Iron Center ` Support (Center Support � �/ Angle Iron Frame required on all frame applications). \ \� Table 5. Typical Rooftop Down Airflow Application with Frame �� Return Air / supply Air Roof Flashing Roof Flashing Channel Iron Center Support (center support required on all ,< frame applications). Angle Iron Frame 14 18-BB38D1-1 D-EN Step 4 — Unit Installation Ductwork Installation Attaching Downflow Ductwork to Roof Curb Supply and return air flanges are provided on the roof curb for easy duct installation. All ductwork must be run and attached to the curb before the unit is set into place. Attaching Downflow Ductwork to Roof Frame Follow these guidelines for ductwork construction: Connections to the unit should be made with three (3) inch canvas connectors to minimize noise and vibration transmission. Elbows with turning vanes or splitters are recommended to minimize air noise and resistance. The first elbow in the ductwork leaving the unit should be no closer than two (2) feet from the unit, to minimize noise and resistance. To prevent leaking, do not attach the ductwork to the bottom of the unit base. Refer to the bottom example in the figure below. Figure 7. Attaching Down Airflow Ductwork AIR PROOF THIS SEAM UNIT BASE FIELD DUCT UNIT DUCT FLANGE AIR PROOF THIS SEAM UNIT DUCT UNIT BASE FLANGE FIELD DUCT AIR PROOF THIS SEAM UNIT BASE FIELD DUCT --JX UNIT DUCT FLANGE UNIT BASE UNIT DUCT f FLANGE / WATERPROOF SEAM WITH BUTYL OR SILICONE NOT RECOMMENDED FIELD DUCT Attaching Horizontal Ductwork to Unit All conditioned air ductwork should be insulated to minimize heating and cooling duct losses. Use a minimum of two (2) inches of insulation with a vapor barrier. The outside ductwork must be weatherproofed between the unit and the building. When attaching ductwork to a horizontal unit, provide a flexible watertight connection to prevent noise transmission from the unit to the ducts. The flexible connection must be indoors and made out of heavy canvas. Note: Do not draw the canvas taut between the solid ducts. Figure 8. Attaching Horizontal Airflow Ductwork UNIT EXTERIOR WE THIS SEAM FIELD DUCT UNIT EXTERIOR WEATHERPROOF THIS SEAM FIELD DUCT Condensate Drain Piping A 3/4-inch female NPT condensate drain connection is provided on the evaporator access panel end of the unit. Provide a trap and fill it with water before starting the unit to avoid air from being drawn through. Follow local codes and standard piping practices when running the drain line. Pitch the line downward away from the unit. Avoid long horizontal runs. See Figure 9, p. 15. Note: Do not use reducing fittings in the drain lines. The condensate drain must be: • Made of 3/4" pipe size • Pitched 1/4" per foot to provide free drainage to convenient drain system • Trapped • Must be connected to a closed drain system unless the trap is properly vented Figure 9. Typical Condensate Drain Piping 3/4" PVC OR COPPER TUBING AND FITTINGS 1-1/2" MIN. 1-1/2" MIN. 1 41 Air Filter Installation The packaged unit requires an air filter. The unit does not come with a factory installed filter rack in it, however, two filter frame accessories are offered that will allow the installation of a filter within the unit, BAYFLTR101 & BAYFLTR201. Otherwise afield supplied filter rack must be installed by the installer in the return duct work. Refer to table for field supplied filter racks. 18-BB38D1-1D-EN 15 Step 4 — Unit Installation Table 6. Filter Sizes (field supplied filter rack) Figure 10. Power Wiring UNIT NOMINAL CFM FILTER (a) SIZE (Sq Ft) FILTER RESISTANCE ("W. C. ) 4*CY5024A 80o 2.67 0.08 4*CY5030A 1000 3.33 0.08 4*CY5036A 11200 4.00 0.08 4*CY5042A 1400 4.67 0.08 4*CY5048A 1600 5.33 0.08 4*CY5060A 2000 6.67 0.08 0) Filters must be installed in the return air system. The above square footages are based on 300 F.P.M. face velocity. If permanent filters are used, size per mfg. Recommendation with clear resistance of 0.05"W C. Important_ Air filters and media wheels or plates shall meet the test requirements in UL 900 Electrical Wiring Note: This unit is factory wired for 230V. See wiring diagram for 208V conversion. Electrical Connections Electrical wiring and grounding must be installed in accordance with local codes or, in the absence of local codes, with the National Electrical Code ANSI/NFPA 70, Latest Revision. Electrical Power It is important that proper electrical power be available for the unit. Voltage variation should remain within the limits stamped on the unit nameplate. Disconnect Switch Provide an approved weatherproof disconnect within close proximity and within sight of the unit.lf disconnect must be mounted to the cabinet, the location shown in Figure 12, p. 16 should be the only one considered. Over Current Protection The branch circuit feeding the unit must be protected as shown on the unit's rating plate. Power Wiring The power supply lines must be run in weather -tight conduit to the disconnect and into the side of the unit control box. Provide strain relief for all conduit with suitable connectors. Provide flexible conduit supports whenever vibration transmission may cause a noise problem within the building structure. 1. Remove the Control/Heat access panel. Pass the power wires through the Power Entry hole in the end of the unit. See Figure 10, p. 16. 2. Connect the high voltage wires to the appropriate contactor terminals. Single phase units use a two (2) pole contactor and three phase units use three (3) pole contactor. Connect the ground to the ground lug on the chassis. See Figure 11, p. 16. Run power supply lines through weather -tight conduit and secure to unit with strain relief. Figure l 1. Power Connections Contactor Ground Figure 12. Mounted Disconnect Location 16 18-BB38D1-1 D-EN Step 4 — Unit Installation Figure 13. Field Wiring — 4WCY5024-042 PACKAGED HEAT PUMP UNIT T E ;Notes: UNIT CONTROL BOX UNIT HEATER AREA -- -- -- _ I I 2 2 -- — -- 1. Fused disconnect size, power wiring and ..—..—..—,, 1 grounding of equipment must comply with codes. POLAR I ZED 2. Be sure power supply agrees with equipment PLUG and heater nameplate. 3. Low voltage wiring to be 18 AWG minimum j EATER conductor. LLECTRIC ONTROL 4, See heater nameplate for current rating of oX heater used. I 5. See unit and heater diagram for electrical = PH GROUND POWER WIRE connection details. 6. If electric heater accessory is not installed, omit the electric heater, associated power wires and the "W" and "X2" thermostat wires. 7. Fig 3 demonstrates connection of the outdoor thermostat accessory only. I(BL)COMMON For further unit connection details, refer I B I I to the other figures. _--.—.-_G I(GR)FAN 8. The W1(WH) wire is first stage electric heat. — — Y (YL )COMPRESSOR If the electric heater accessory has two I W I I(WH)IST STAGE ELECTRIC HEAT heating stages, the W2 (WH) wire is second I stage electric heat. — — — W2 i(WH)2ND STAGE ELECTRIC HEAT 9• When the BAYECON054A or-055A O j (OR )SWI TCHOVER VALVE economizer is installed, the BAYRLAY003 T I(8R)DEFROST CONTROL 'T' SIGNAL relay accessory kit is required to interface the economizer to the heat pump for proper -- -- R I system operation. When the BAYECON054B, IUN T Low VOLTAGE AREA (RD)2a VOLTS 055B or 073A economizer is installed, the IPH POWER 3 PH 3 PH POWER POWER UNIT HEATER TYPICAL THERMOSTAT BAYRLAY004A relay accessory kit is required to interface the economizer to the heat pump for proper system operation. 10. The BAYSTAT033A outdoor thermostat accessory kit contains a thermostat and a relay. The relay is not required to be used in this application. NUIL I,a rF IG. I SINGLE POWER ENTRY ACCESSORY CONNECTIONS FIG. 2 ECONOMIZER ACCESSORY CONNECTIONS li UNIT CONTROL UN I T HEATER AREA li TO ECONOMIZER (NOT APPLICABLE TO THE BOX FACTORY PROVIDED WCM ---F MODELS) FIELD PROVIDED FIELD INSTALLED WIRES FIELD CONNECTED ELECTRIC 11 NOTE 9 _ G••_TO COMPRWIRED HEATER I CONTROL . J..—CONTACTOR BOX I I I .. I I I I I I II 11 --IGR)-------(GR) G I I .I UNIT HEATER .—(PR) ..—. (YL) Y --------------_ SPE (WHWI ) I I I ACCESSORY- KIT _ I I --IWHW2 UNIT LOW �-"—(OR) O L---- VOLTAGE AREA `---------------L----------------- - - - - -L r GROUND —(BR) T I � v WIRE SEE SPEK INSTALLERS GUIDE � POWER FOR ALL OTHER EXAMPLES UNIT LOW --(RD) R �-Nr VOLTAGE AREA 3 PH POWER I I B YI G Y2 W %2 O T R I SINGLE POWER ENTRY TYPICAL 2-STAGE THERMOSTAT ------------------------------------------------------- FIG. 3 OUTDOOR THERMOSTAT ACCESSORY CONNECTIONS I I HEATER AMBIENT HEATER AMBIENT TEMPERATURE LOCKOUT TEMPERATURE LOCKOUT NOTE 7, 8 NOTE 7, 8 I-----(WH) WI I _.._(WH) WI (WHI WI UNIT LOW UNIT LOW VOLTAGE AREA (WH) W2 I I I VOLTAGE AREA ---(WH) W2 I I I I I I I I I I I I I OUT OOR I I I OUT OOR THERMOSTAT ACCESSORY THERMOSTAT ACCESSORY BAYSTATO33A I BAYSTAT033A I NOTE 10 I NOTE 10 B G Y W %2 O T R I B G r w z2 O T R TYPICAL THERMOSTAT I TYPICAL THERMOSTAT ------ I ------------------------------------I I 1 211 FACTORY •• • —LINE V WIRING LIH I FIELO LINE V.) WIRING 18-BB38D1-1 D-EN Step 4 — Unit Installation Figure 14. Field Wiring — 4WCY5048-060 PACKAGED HEAT PUMP UNIT UNIT CONTROL BOX IT UNIT HEATER P AREA iNOTES: 212 ---- -� 1. Fused disconnect size, power wiring and —I.. —..—..— grounding of equipment must comply with codes. POLARIZED I 2. Be sure power supply agrees with PLUG ELECTRIC equipment nameplate and heater HEATER nameplate. CONTROL 3. Low voltage wiring to be 18 AWG BOX minimum conductor. 4. See heater nameplate for current rating of heater used. 5. See unit and heater diagram for electrical connection details. 6. If electric heater accessory is not I --- I I I installed, omit the electric heater, I (BL) B I COMMON associated power wires and the "W" I j I (GA) G D FAN and "X2" thermostat wires. (IL) II: IST STAGE COMPRESSOR 7. Fig. 2 demonstrates connection of the I I I rvRD) Yz; zND STAGE COMPRESSOR I outdoor thermostat accessory only. For further unit connection details refer to (WH) WI: IST STAGE HEAT the other figures. (WH) Wz: 2ND STAGE HEAT 8. The W1 (WH) wire is first stage electric : .--- - (OR) 0 SWIR VALVE heat. If the electric heater accessory has (RD) R 24 VOLTS VOLTS two heating stages, the W2 (WH) wire is L- lUNIT LOW VOLTAGE AREA L second stage electric heat. I PH GROUND POWER WIRE , IPH POWER TYPICAL 2-STAGE THERMOSTAT 9. The BAYSTAT033A outdoor thermostat accessory kit contains a thermostat and a relay. The relay is not required to be used in this application. 3 PH 3 PH POWER POWER UNIT HEATER NOTE 1,6 INTER -COMPONENT WIRING T------------------- 3 24V 77 PACTORY LI NE V 1WIR ING F I G. I S I NGLE POWER ENTRY ACCESSORY CONNECTIONS _ r 2 4V. I WFIERILD NO (UNIT CONTROL :UNIT HEATER AREA LINE I BOX I : I I FACTORY PROVIDED I FIELD CONNECTED ELECTRIC : I I — WIRES HEATER ONTROL : F i,,_TO COMER. : : li Box .._CONTACTOR I . I. . I I I I I I I • UN I T IHEATERII I I I - FUSE FUSES I SPE ACCESSORY'_ I I I I KIT I I UNIT LOW : VOLTAGE AREA WIRE COLOR DESIGNATION ABDR COLOR ABBR COLOR BK BLACK PR PURPLE BL BLUE RD RED BR BROWN WH WHITE OR GREEN YL YELLOW OR ORANGE L____ ------ ______________L---------------------- J I r GROUND I = WIRE : POWER I I 3 PH POWER I I I SINGLE POWER ENTRY I : I FIG. 2 OUTDOOR THERMOSTAT ACCESSORY CONNECTIONS HEATER AMBIENT HEATER SECOND STAGE AMBIENT TEMPERATURLOCKOUT E I TEMPERATURE LOCKOUT NOTE 7, 8 NOTE 7, 8 ------iWHI WI _ -(WH) WI (WHl W2 UNIT LOW 'i UNIT LOW VOLTAGE AREA I VOLTAGE AREA II I ---(WHI W2 : I : : I I I OUT OOR : : OUT OOR THERMOSTAT THERMOSTAT ACCESSORY ACCESSORY BAYSTAT033A BAYSTAT033A NOTE 9 li NOTE 9 B B G Y W %2 0 T A I TYPICAL THERMOSTAT : : TYPICAL THERMOSTAT : 18 18-BB38D1-1 D-EN Step 4 — Unit Installation Control Wiring (Class II) Low voltage control wiring should not be run in conduit with power wiring unless Class 1 wire of proper voltage rating is used. Route the thermostat cable or equivalent single leads of No. 18 AWG colored wire from the thermostat subbase terminals through the rubber grommet on the unit. See Unit Clearance Drawings for the control entry (24V Entry) location. Make connections as shown on the wiring diagrams. Do not short thermostat wires since this will damage the control transformer. Refer to the table below for recommended wire sizes and lengths for installing the unit thermostat. The total resistance of these low voltage wires must not exceed one (1) ohm. Any resistance in excess of 1 ohm may cause the control to malfunction because of the excessive voltage drop. Table 7. Thermostat Wire Size and Maximum Length Wire Size Maximum Length (Ft) i8 75 16 125 14 200 Important_ Upon completion of wiring, check all electrical connections, including factory wiring within the unit, and make sure all connections are tight. Replace and secure all electrical box covers and access panels before leaving the unit or turning on the power to the unit. Step 5 — Unit Startup Pre -Start Quick Checklist ❑ Is the unit properly located and level with the proper clearances? See "Step 2 — Determine Unit Clearances," p.5 ❑ Is the duct work correctly sized, run, taped, insulated, and weatherproofed with proper unit arrangement as shown in the ductwork installation section? ❑ Is the condensate line properly sized, run, trapped, and pitched and shown in the Condensate Drain Piping section? ❑ Is the filter of the correct size and quantity? Is it clean and in place? See Air Filter Installation section. ❑ Is the wiring properly sized and run according to the unit wiring diagram? ❑ Are all the wiring connections, including those in the unit tight? ❑ Has the unit been properly grounded and fused with the recommended fuse size? ❑ Is the thermostat well located, level, and correctly wired? See Electrical Wiring section ❑ Have the air conditioning systems been checked at the service ports for charge and leak tested if necessary? ❑ Do the condenser fan and indoor blower turn free without rubbing and are they tight on the shafts? ❑ Has all work been done in accordance with applicable local and national codes? ❑ Are all covers and access panels in place to prevent air loss and safety hazards? Starting the Unit in Cooling Mode Note: See the section on Sequence of Operation for a description of the cooling operating sequence. To start the unit in the cooling mode, set the comfort control to COOL and to a setting below room temperature. The condenser fan motor, compressor and evaporator fan motor will operate automatically. Continuous fan mode during Cooling operation may not be appropriate in humid climates. If the indoor air exceeds 60% relative humidity or simply feels uncomfortably humid, it is recommended that the fan only be used in the AUTO mode. Operating Pressure Checks After the unit has operated in the cooling mode for a short period of time, install pressure gauges on the gauge ports of the discharge and suction line valves (behind the Compressor access panel). Check the suction and discharge pressures and compare them to the normal operating pressures provided in the unit's SERVICE FACTS. Note: Do not use the PRESSURE CURVES from the unit's SERVICE FACTS to determine the unit refrigerant charge. The correct charge is shown on the unit nameplate. To charge the system accurately, weigh in the charge according to the unit nameplate and check subcooling against the Subcooling Charging Table in the SERVICE FACTS. Voltage Check With the compressor operating, check the line voltage at the unit (contactor is located behind the Control access panel). The voltage should be within the range shown on the unit nameplate. If low voltage is encountered, check the size and length of the supply line from the main disconnect to the unit. The line may be undersized for the length of the run. Cooling Shut Down Set the comfort control to OFF or to a setting above room temperature. Important: De -energize the main power disconnect ONLY when servicing the unit. Power may be required to keep the heat pump compressor warm and to boil off refrigerant in the compressor. 18-BB38D1-1D-EN 19 Step 4 — Unit Installation Starting the Unit in Heating Mode Note: See the section on Sequence of Operation for a description of the heat pump heating operating sequence. Check that all grills and registers are open and all unit access panels are closed before start-up. Set the comfort control above room temperature until achieving a first stage call for heat and set the fan to AUTO or ON. Heating Shut Down Set the comfort control to OFF or at a setting below room temperature. Sequence of Operation General Operation of the unit heating and cooling cycles is automatic when the system is in the HEAT or COOL functions (the optional automatic changeover thermostat, when in the AUTO position, automatically changes to heat or cool with an appropriate room temperature change). The fan can be set to ON, causing continuous evaporator (indoor) fan operation or set to AUTO causing fan operation to coincide with heating or cooling run cycles. Continuous fan mode during Cooling operation may not be appropriate in humid climates. If the indoor air exceeds 60% relative humidity or simply feels uncomfortably humid, it is recommended that the fan only be used in the AUTO mode. Cooling Mode Note_ The TSH and TSC are contacts that are internal to the indoor comfort control. With the disconnect switch in the ON position, current is supplied to the control transformer. The cooling cycle is enabled through the low voltage side of the control transformer to the "R" terminal on the indoor thermostat. With the comfort control set to AUTO and TSC-1 contacts closed, power is supplied to the "O " terminal on the indoor thermostat to the switchover valve coil (SOV). This energizes the switch - over valve (SOV) and places it in the cooling position (it is in the heating position when de -energized). When the indoor temperature rises 1-1/2 degrees, TSC- 2 contacts close, supplying power to the "Y" terminal on the indoor thermostat, and to the compressor contactor (CC). This starts the outdoor fan motor and compressor. The TSC-2 contacts also provide power to the "G" terminal which provides power to the indoor fan motor. Heating Mode With the comfort control set to ON, current is supplied to the transformer. Starting at the "R" terminal on the indoor comfort control, current goes through the system switch (which is in "AUTO" position) to the TSH-1 contacts. When closed, these contacts supply power to terminal "Y" on the indoor thermostat as well as to the heating anticipator. The switch -over valve will not energize because of the high resistance of the heating anticipator in the thermostat. Power is provided from "Y" to the compressor contactor (CC) which starts the compressor and outdoor fan motor. The indoor thermostat contact TSH-1 also provides power to "G" terminal on the indoor thermostat energizing the indoor fan motor. Supplementary Heat The supplementary electric heat is brought on when the indoor temperature drops 1-1/2 degrees below the thermostat setting. TSH-2 contacts close providing power to the "W" terminal on the indoor thermostat and to the supplementary heater control circuit. An outdoor thermostat may have been added to disallow the second stage (if provided) of electric heat above a selected outdoor temperature. If the outdoor temperature falls below the setting on the outdoor thermostat, this additional heater stage will come on. When the outdoor air temperature rises, and the outdoor T-stat setpoint is reached, the system will revert back to first stage electric heating. When the indoor ambient is satisfied, TSH-2 contacts will open and the unit will revert back to the compressor only heating mode and then off. For emergency heat (use of supplementary electric heat only), an emergency (EMERG) heat switch is provided within the comfort control. When placed in the emergency heat position, it will disable the compressor, bypass the outdoor thermostats, if provided, and engage the supplementary electric heaters and indoor fan. ECM Fan Motor Adjustments If the airflow needs to be increased or decreased, see the Airflow Table in the Service Facts. Information on changing the speed of the blower motor is in the Blower Performance Table. Blower speed changes are made on the ICM Fan Control mounted in the control box. The ICM Fan Control controls the variable speed motor. There is a bank of 8 dip switches located at the upper left side of the board. The dip switches work in pairs to match the cooling/heat airflow (CFM/TON), Fan off - delay options, and electric heat airflow adjustment. The switches appear as shown in Figure 15, p. 21. 20 18-BB38D1-1 D-EN Step 4 — Unit Installation Figure 15. ECM Fan Control CFM SELECTION DIP LIGHT ovvi into 21C800796POIh� CNTO3600 y�' 0123 d5618 CFM FAN Y Y LO00 �L 00 0000000000 FMBK R R O W3 W2 WI V YFO B G Demand Defrost Operation During the heating cycle, the outdoor coil may require a defrost cycle which is determined by the demand defrost control (DFC). This control continuously measures the outdoor coil temperature (CBS) and the outdoor ambient temperature (ODS-B) and calculates the difference or delta-T measurement. When the calculated delta-T is met, the demand defrost control (DFC) opens the circuit to the outdoor fan motor (ODM) and energizes the switch -over valve (SOV), placing the unit in the cooling mode to defrost the outdoor coil. The outdoor coil temperature sensor (CBS) terminates the defrost cycle, or times out after fifteen minutes in defrost, the (DFC) energizes the outdoor fan motor (ODM) and twelve seconds later de - energizes the (SOV), which returns the unit to the heating mode. Supplementary electric heat, if provided, is brought on to control indoor temperature during the defrost cycle. Final Installation Checklist Important. Perform a final unit inspection to be sure that factory tubing has not shifted during shipment. Adjust tubing if necessary so tubes do not rub against each other when the unit runs. Also be sure that wiring connections are tight and properly secured. ❑ Does the unit run and operate as described in the Sequence of Operation section in response to the room thermostat? ❑ Are the condenser fan and indoor blower operating correctly with proper rotation and without undue noise? ❑ Is the compressor operating correctly and has the system been checked with a charging chart? ❑ Has the voltage and running current been checked to determine if it is within limits? ❑ Has the thermostat been checked for calibration and the air discharge grills adjusted to balance the system? ❑ Has the ductwork been checked for air leaks and condensation? ❑ Has the heating air temperature rise been checked? ❑ Has the unit been checked for tubing and sheet metal rattles? Are there any other unusual noises to be checked? ❑ Are all covers and panels in place and properly fastened? ❑ Has the owner been instructed on the proper operation and maintenance of the unit? Be sure to leave this manual with the owner. Maintenance Owner Maintenance Some of the periodic maintenance functions of the unit can be performed by the owner; this includes replacing the disposable or cleaning the permanent air filters, cleaning the unit cabinet, cleaning the condenser coil, and conducting a general unit inspection on a regular basis. Filters When the system is in constant operation, inspect the filters at least once each month. If the unit has disposable -type filters, replace them with new filters of the same type and size. Do not attempt to clean disposable filters. Permanent -type filters can be cleaned by washing them with a mild detergent and water. Make sure that the filters are thoroughly dry before reinstalling them in the unit (or duct system). Note: It may be necessary to replace permanent filters annually if washing fails to clean the filter or if the filter shows signs of deterioration. Be sure to use the same type and size as was originally installed. Condenser Coil Be sure to keep all vegetation and debris away from the condenser coil area. 18-BB38D1-1D-EN 21 Step 4 — Unit Installation Service Maintenance Cooling Season To keep the unit operating safely and efficiently, the manufacturer recommends that a qualified service technician check the entire system at least once each year or sooner if needed. The service technician should examine these areas of the unit: • unit duct connections (to see that they are physically sound and sealed to the unit casing) • unit mounting support (for structural integrity) • the unit (for obvious unit deterioration) Heating Season Complete the following unit inspections and service routines at the beginning of each heating season. • filters (for cleaning or replacement) • Visually inspect the unit to ensure that the airflow • motors and drive system components required for combustion and condenser coil is not • safety controls (for mechanical cleaning) obstructed from the unit. • electrical components and wiring (for possible • Inspect the control panel wiring to verify that all replacement and connection tightness) electrical connections are tight and that the wire • condensate drain (for proper sealing and cleaning) insulation is intact. 22 18-BB38D1-1 D-EN Notes 18-BB38D1-1 D-EN 23 About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com. 0%.-s Intertek The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to aIn rid irectory.org. The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices. 18-BB38D1-1D-EN o1Jun2020 Supersedes18-BB38D1-1C-EN (September2018) ©2020