McQuay. Enfinity Horizontal Water Source Heat Pump. WCRH, WCRW 007, 009, 012 Design 1. Replacement Parts List No Revision B 02/2018

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1 Replacement Parts List No Revision B 02/2018 McQuay Enfinity Horizontal Water Source Heat Pump WCRH, WCRW 007, 009, 012 Design 1 To find your Daikin Applied parts distributor, call or visit

2 Contents Parts List Revision History...3 Nomenclature Serial Number...4 Model Number...4 Blower Assembly- Motor, Capacitor, Wheel, Housing...5 Refrigeration Circuit Reversing Valve & Solenoid, Compressor, Condenser, Evaporator, Fusible Plug, High Pressure Switch, Coremax Valves Control Box Microtech 2000 Controller, DDC Less Board, Alerton Controller Mark IV Controller Field Installed Accessories Critical Parts List...CPL1 WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 2

3 Parts List Revision History Revision Date Description New 08/08 New A 10/16 CPL1: Added new page for Critical Parts List. B 02/18 Move pages 5&6 to pages 13&14 for Field Installed Accessories. Delete page 7 Basic Unit Layout. Delete sheet metal from page 8 Cabinet & move drain pans, edging & access panels to refrigeration components. Page 4- Change Serial Number to current nomenclature, month of mfg to week of mfg. Add table for model number codes. Page 5- Blower Assy- Add Cabinet/Chassis components and sheetmetal footnote. Pages 6, 8, 10- Redo diagrams from tif to PSD. CPL1- Update revision. Daikin Applied, Industrial Park Blvd., P.O. Box 1551, Minneapolis, MN (763) WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 3

4 Nomenclature Serial Number AUB U Plant Identification Abbreviation AUB = Auburn Serial Number (build sequence) U= Unit Week of Manufacture Year of Manufacture 08= = 2009 etc. Model Number WCRH M J Y L E 01 YY A C Y YY Y YYY YYY YYY Code R Y YYY Y Y Y Code Code 01: Unit Type W= Water Source Heat Pump Code 02: Product Identifier CRH= R22, Ceiling Mounted, Standard Range CRW= R22, Ceiling Mounted, Geothermal Range Code 03: Design Series 1= Design 1 Code 04: Unit Size 007= 7000 BtuH Nominal Cooling 009= 9000 BtuH Nominal Cooling 012= BtuH Nominal Cooling Code 05: Controls A= Alerton E= DDC Less Board K= MicroTech 2000 w/ LonMark Card L= MicroTech 2000 w/ LonWorks Card M= Mark IV Code 06: Voltage A= E= J= 265/277/60/1 M= Code 07: Cabinet Height Y= None Code 08: Return Air L= Left Hand Return Air R= Right Hand Return Air Code 09: Discharge Air E= End Discharge S= Straight Discharge Code 10: Blower Motor 01= Standard Code 11: Discharge Grille/ Cabinet Type YY= None Code 12: Construction Type A= Standard E= Indoor Air Quality (IAQ) Code 13: Water to Refrigerant Heat Exchanger C= Copper Inner Tube/ Steel Outer Tube S= Cupro Nickel Inner Tube/ Steel Outer Tube Y= None Code 14: Heating Options Y= None Code 15: Dehumidification YY= None Code 16: Piping Hand Y= None Code 17: Thermostat Control YYY= None Code 18: Night Control YYY= None Code 19: Desuperheater YYY= None Code 20: Refrigerant R= R22 Code 21: Power Connection Y= None Code 22: Cabinet Electrical 75V= 75 Volt Control Transformer YYY= None Code 23: Water Flow Control Y= None Code 24: Always Y Code 25: Outside Air Y= None Code 26: Agency Type Code 27: Packaging Code 28: Warranty Code 29: Always 2 (Product Style 2) WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 4

5 Blower Assembly Motor, Capacitor, Wheel, Housing Cabinet/Chassis components Motor Horsepower Ref Part Part No. Description Number 330 Motor- Blower.050 HP Motor- Blower.050 HP Motor- Blower.050 HP Motor- Blower.050 HP Motor- Blower.125 HP Motor- Blower.125 HP Motor- Blower.125 HP Motor- Blower.125 HP Capacitor- Blower Motor 2.0 MFD 370V Capacitor- Blower Motor 4.0 MFD 370V Capacitor- Blower Motor 2.0 MFD 440V Capacitor- Blower Motor 3.0 MFD 440V Capacitor- Blower Motor 5.0 MFD 440V Housing- Blower Housing- Blower Inlet Ring Wheel- Blower Wheel- Blower Bracket- Blower Support Bracket- Capacitor N/S Cabinet/Chassis components N/S = Not shown on diagram. 1 Please contact Daikin with unit model and serial number for part numbers on Cabinet/Chassis components. WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 5

6 Refrigeration Circuit Reversing Valve & Solenoid, Compressor, Condenser, Evaporator, Fusible Plug, High Pressure Switch, Coremax Valves Diagrams Evaporator/ TXV Detail Condenser Detail Compressor Reversing Valve Piping 58 TXV Bulb Compressor Mounting Detail Low Temp. Switch Bulb (see control box for p/n) Coremax Valve Assy Coremax Valve Assembly Detail 151A 151B 151C WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 6

7 Refrigeration Circuit Reversing Valve & Solenoid, Compressor, Condenser, Evaporator, Fusible Plug, High Pressure Switch, Coremax Valves Components Unit Size Ref Part Part No. Description Number 57 Sleeve- Compressor Mount Nut- Compressor Mount Grommet- Compressor Mount Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Condenser Copper Inner Tube (C13= C) Condenser Copper Inner Tube (C13= C) Condenser CUNI Inner Tube (C13= S) Condenser CUNI Inner Tube (C13= S) Adapter.500 x.625 ODS Flange Nut- Hex Evaporator Coil Evaporator Coil Valve- Reversing Valve- Reversing Solenoid- Reversing Valve 24VAC Control- High Pressure 400 ± 10PSI A Seat- Fitting B Core- Valve C Cap- Valve Fusible Plug Assy Plug Only 283 F Valve- Expansion Valve- Expansion N/S Acess Panel N/S Gasket, Edging N/S Drain Pan N/S Terminal Ring- Condensate Overflow Wire N/S Kit- Hangar Bracket N/S= Not shown on diagram. 1 Kit includes bracket (p/n ), grommet (p/n ), and hardware. 2 Attaches using a stand off p/n WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 7

8 Control Box Microtech 2000 Controller with LonMark: Code 05= K Microtech 2000 Controller with LonWorks: Code 05= L Alerton Controller: Code 05= A DDC Less Board: Code 05= E Diagrams Units 249B 249A Units 249A 249B WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 8

9 Control Box Microtech 2000 Controller with LonMark: Code 05= K Microtech 2000 Controller with LonWorks: Code 05= L Alerton Controller: Code 05= A DDC Less Board: Code 05= E Components Unit Size Ref Part Part No. Description Number 67 Bracket- Capacitor Bracket- Capacitor Capacitor- Compressor 15MFD/ 370V Capacitor- Compressor 20MFD/ 370V Capacitor- Compressor 35MFD/ 370V Capacitor- Compressor 15MFD/ 440V Capacitor- Compressor 10MFD/ 440V Control- Temperature, Low Limit WCRW Units 6.5 /17.5 ± 2 F WCRH Units +28 /+38 F PC Board- Main Controller Microtech 2000 w/lonmark Code 05= K Microtech 2000 w/lonworks Code 05= L Alerton Code 05= A Contactor- Compressor 24V 2PDT Contactor- Fan 24V 1PDT Contactor- Fan 24V 3PDT Terminal Block Terminal Block- End Stand Off- PC Board A Board- Terminal LO Volt 7- Position B Block- Terminal ELUPC Transformer Transformer Transformer N/S Sensor- Air 10K/ N/S= Not shown on diagram. WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 9

10 Control Box Mark IV Controller: Code 05= M Diagrams Units Units WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 10

11 Control Box Mark IV Controller: Code 05= M Components Unit Size Ref Part Part No. Description Number 67 Bracket- Capacitor Bracket- Capacitor Capacitor- Compressor 15MFD/ 370V Capacitor- Compressor 20MFD/ 370V Capacitor- Compressor 35MFD/ 370V Capacitor- Compressor 15MFD/ 440V Capacitor- Compressor 10MFD/ 440V Control- Temperature, Low Limit WCRW Units 6.5 /17.5 ± 2 F WCRH Units +28 /+38 F PC Board- Main Controller Mark IV Code 05= M Contactor- Compressor 24V 2PDT Contactor- Fan 240V 3PDT Stand Off- PC Board Terminal Block Terminal Block- End Transformer Transformer Transformer WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 11

12 Field Installed Accessories Relays Description Part Number Auxiliary Relay- 24V, Normally Open. 24V 1PDT Dry Contact Relay- 5 VDC in, AC/DC out, Normally Open Motorized Valve Control Relay Kit- Kit contains circuit board p/n and 6-pin plug p/n Pump Restart Relay- Used on Mark IV units Time Schedule Relay- 24 VDC relay controls the Mark IV "U" terminal Ball Valves and Motorized Valves Description Part Number Combination Shutoff/Balancing Valve with Memory Stop (2 per unit) Motorized Valve Kit- Includes valve/operator, conduit assy. 300 PSIG max Valve Body V Actuator Filters and Filter Rack Description Part Number Filter Rack Filter- 1" Throwaway Filter- 2" Throwaway Hoses Description Specification Part Number Hose Assy- Fire Rated Condensate 3/4" X 2' /4" X 3' Hose Assy- Fire Rated Supply/Return 1/2" X 2' /2" X 3' Hose Assy- Plastic Condensate 3/4" X 30" /4" X 36" Flow Control Hose Kit- Fire Rated Supply/Return 0.5 GPM Includes: Supply Ball Valve, Y-Strainer, and 24" Stainless Steel Hose. 1.0 GPM Return Flow Controller, Ball Valve, (2) P/T, 24" Stainless Steel Hose. 1.5 GPM GPM GPM GPM GPM GPM GPM GPM GPM GPM WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 12

13 Field Installed Accessories Continued Remote Sensor, Thermostat Guard Description Part Number Remote Sensor for stats & Thermostat Guard- Clear plastic guard with ring base, lock and key Mark IV Unit Control Accessories Description Specification Part No. Multiple Unit Control Panel- Master & 1 Slave Allows master unit to be controlled by any t-stat. Slave units "follow" Control of 3 units with paralleled operation. Not recommended with Boilerless System 24 VDC Aux. Relay Boilerless System Kit Components listed below. Mark IV Unit Thermostats and Wall Plates Description Part No. Thermostat- Programmable with Remote Sensor Wall Stat- AC/DC, ACO, 7 Day Programmable, 2 Heat/2 Cool with Wall Plate Wall Stat- AC/DC, ACO, Non- Programmable, 2 Heat/2 Cool, NSB & OR with Wall Plate Wall Plate- Insulated Boilerless System Kit Description Part No. Qty. Control Box Cover- Control Box P.C. Board Sensor- Temperature Harness Assembly Inverter Relay Resistor Multiple Unit Control Panel Ref. Description Part Qty. No. Number 310 Cover- Control Box Circuit Board Stand Off- Circuit Board Box WSHP; WCRH,WCRW , Design 1 Rev B 02/2018 RPL / Page 13

14 Critical Daikin Applied OEM Parts Are What Your HVAC Unit Needs! McQuay Enfinity Horizontal WSHP WCRH, WCRW Design 1 Critical Components Unit Size Voltage Part Number Controls Mark IV AC ALL ALL Microtech LonWorks ALL ALL Microtech LonMark ALL ALL Alerton ALL ALL Motor 1/20 HP /20 HP /60/ /20 HP /8 HP 009, /8 HP 009, /60/ /8 HP 009, Wheel Metal 007, 009 ALL Metal 012 ALL Compressor 6700 BTU BTU /60/ BTU BTU BTU /60/ BTU BTU BTU /60/ BTU Call Your Local Daikin Applied Parts Distributor For All Your Parts Needs. To Locate A Distributor, Go To or Call PARTS Rev. B 02/2018 CPL Page 1 of 1