McQuay. Enfinity Vertical Water Source Heat Pump. WFCV, WFCW Design 1. Replacement Parts List No Revision D 03/2018

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1 Replacement Parts List No Revision D 03/208 McQuay Enfinity Vertical Water Source Heat Pump WFCV, WFCW Design To find your Daikin Applied parts distributor, call or visit

2 Contents Parts List Revision History... 3 Nomenclature Serial Number... 4 Model Number... 4 Cabinet- Drain Pan, Filter & Access Panels... 5 Blower Assembly- Motor, Capacitor, Wheel & Housing... 6 Refrigeration Circuit Reversing Valve & Solenoid, Compressor, Condenser, Evaporator, Fusible Plug, High Pressure Switch, Valves Diagrams... 7 Components Control Box Microtech 2000 Controller, Alerton Controller, DDC Less Board Mark IV Controller Field Installed Accessories Critical Parts List... CPL WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 2

3 Parts List Revision History Revision Date Description NEW 05/0 New. A 08/0 Page5- Add Footnote for reversing valve and/or coil. B 03/7 Rebrand to Daikin format. Delete page 5 Basic Unit Layout. Numerous changes. Page 4- Change Serial Number from Month of Manufacture to Week of Manufacture. Page 5- Delete cabinet & chassis sheet metal and add footnote. Page 7- Add Diagram of Coremax Valve Assy Detail. Page 8-9- Page added for refrigeration components. Page - Change Microtech Stand Off p/n from Qty of 4 to. Page 3- Change Mark IV Stand Off p/n from Qty of 4 to 5. Pages 3-4 Moved Field Installed Accesorries from pages 5-6. CPL- Add Critical Parts List. C 04/7 Page 9- Ref #859 Change expansion valve size 009 & 02 p/n to (size 009) & (size 00). Add qty for Ref # 5B, 5C & 60. CPL- Update revision. D 03/8 Page 6- Change capacitor p/ns to & to Add capacitor boot p/n CPL- Update revision Daikin Applied, 3600 Industrial Park Blvd., P.O. Box 55, Minneapolis, MN (763) WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 3

4 Nomenclature Plant Identification AUB = Auburn U= Unit Serial Number AUB U Year of Manufacture 0= 200 = 20 etc. Model Number Serial Number (build sequence) Week of Manufacture WFCV 007 M E Y L T 0 YY A C Y YY Y YYY YYY YYY Code R Y 75A Y Y Y E Code Code 0: Unit Type W= Water Source Heat Pump Code 02: Product Identifier FCV= R22, Vertical Floor Mounted, Standard Range FCW= R22,Vertical Floor Mounted, Geothermal Range Code 03: Design Series = Design Code 04: Unit Size 007= 7000 BtuH Nominal Cooling 009= 9000 BtuH Nominal Cooling 02= 2000 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= J= E= /60/ 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 T= Top Discharge Code 0: Blower Motor 0= Standard Code : Discharge Grille/ Cabinet Type YY= None Code 2: Construction Type A= Standard E= Indoor Air Quality (IAQ) Code 3: Water to Refrigerant Heat Exchanger C= Copper Inner Tube/ Steel Outer Tube S= Cupro Nickel Inner Tube/ Steel Outer Tube Code 4: Heating Options Y= None Code 5: Dehumidification YY= None Code 6: Piping Hand Y= None Code 7: Thermostat Control YYY= None Code 8: Night Control YYY= None Code 9: Desuperheater YYY= None Code 20: Refrigerant R= R22 Code 2: Power Connection Y= None Code 22: Cabinet Electrical 75V= 75 VA 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; WFCV,WFCW Design Rev. D 03/8 RPL / Page 4

5 Cabinet Drain Pan, Filter & Access Panels Cabinet/Chassis components Ref. No. Part Description Part Number N/S= Not Shown. Please contact Daikin Applied with unit model and serial number for part numbers on Cabinet/Chassis components. Unit Size Drain Pan, Plastic Hose- Condensate Panel- Fan Access Filler- Coil 420 Cover- Top 427 Panel-Wrap 43 Panel- Compressor Access Panel- Coil 454 Filter, TA Bracket, Access Panel Panel- Condensate Pan N/S Cabinet/Chassis components WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 5

6 Blower Assembly Motor, Capacitor, Wheel & Housing Ref. No. Part Description Part Number Motor, Blower, /20 HP Motor, Blower, /20 HP Motor, Blower, /20 HP Motor, Blower, /20 HP Motor, Blower, /8 HP Motor, Blower, /8 HP Motor, Blower, /8 HP Motor, Blower, /8 HP Capacitor, Mtr, 4MFD 370V Capacitor, Mtr, 2MFD 370V Capacitor, Mtr, 2MFD 440V (until /8) Capacitor, Mtr, 2MFD 440V (/8 & later) Capacitor, Mtr, 3MFD 440V (until /8) Capacitor, Mtr, 3MFD 440V (/8 & later) Capacitor, Mtr, 5MFD 440V N/S Bracket, Capacitor N/S Capacitor Boot (/8 & later) Housing, Blower Housing, Blower Inlet Ring Wheel, Blower Wheel, Blower N/S= Not Shown. WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 6

7 Refrigeration Circuit Reversing Valve & Solenoid, Compressor, Condenser, Evaporator, Fusible Plug, High Pressure Switch, Valves Diagrams Evaporator/ TXV Detail 92 Condenser Detail Compressor 58 Reversing Valve Piping Compressor Mounting Detail Coremax Valve Assy Detail 36 Coremax Valve Assy 5A 5B 5C

8 Refrigeration Circuit Reversing Valve & Solenoid, Compressor, Condenser, Evaporator, Fusible Plug, High Pressure Switch, Valves Components Ref. No. Part Description Part Number 56 Grommet, Compressor Mounting Sleeve, Compressor Mounting Nut, Compressor Mounting Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Overload, Compressor N/S Overload, Compressor Overload, Compressor Condenser, Copper Inner Tube Condenser, Copper Inner Tube Condenser, CUNI Inner Tube Condenser, CUNI Inner Tube Adapter Evaporator Coil Evaporator Coil N/S Reversing Valve, C05= M (02/05 & later) Reversing Valve, C05= A,E,K,L (until 02/05) Reversing Valve, C05= M (until 02/05) Reversing Valve, C05= A,E,K,L (02/05 & later) Solenoid, Rev. Valve, C05= M (until 02/05) Solenoid, Rev. Valve, C05= A,E,K,L (until 02/05) Solenoid, Rev. Valve, C05= ALL (02/05 & later) N/S= Not Shown. WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 8

9 Refrigeration Circuit Reversing Valve & Solenoid, Compressor, Condenser, Evaporator, Fusible Plug, High Pressure Switch, Valves Components Ref. No. Part Description Part Number 36 High Pressure Control A Valve Core B Fitting, Seat C Cap, Valve Fusible Plug Assy Plug Only, 283 F Expansion Valve Expansion Valve Expansion Valve WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 9

10 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 only A 249B Control Box WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 0

11 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 Capacitor- Compressor 5MFD/ 370V Capacitor- Compressor 35MFD/ 370V Capacitor- Compressor 20MFD/ 370V Capacitor- Compressor 5MFD/ 440V Capacitor- Compressor 25MFD/ 370V Capacitor- Compressor 25MFD/ 440V Control- Temperature, Low Limit WFCW Units 6.5 /7.5 ± 2 F WFVC 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 N/S Stand Off- PC Board Contactor- Compressor, 24V 2PDT Contactor- Fan, 24V PDT Contactor- Fan, 24V 3PDT Terminal Block Terminal Block- End A Board- Terminal LO Volt 7- Position B Block- Terminal ELUPC Transformer Transformer Transformer N/S Sensor- Air 0K/ N/S Sensor- Water 0K/ N/S= Not shown on diagram. Capacitor and Bracket are attached to the back of the control box. WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page

12 Control Box Mark IV Controller: Code 05= M Diagrams Units only Control Box WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 2

13 Control Box Mark IV Controller: Code 05= M Components Unit Size Ref Part Part No. Description Number 67 Bracket- Capacitor Bracket- Capacitor Capacitor- Compressor 5MFD/ 370V Capacitor- Compressor 20MFD/ 370V Capacitor- Compressor 35MFD/ 370V Capacitor- Compressor 5MFD/ 440V Capacitor- Compressor 0MFD/ 440V Control- Temperature, Low Limit WFCW Units 6.5 /7.5 ± 2 F WFVC Units +28 /+38 F PC Board- Main Controller Mark IV DC* (04/94 to 03/05) K Mark IV AC* (03/05 & later) Contactor- Compressor 24V 2PDT Contactor- Fan 240V 3PDT N/S Stand Off- PC Board Terminal Block Terminal Block- End Transformer Transformer Transformer N/S= Not shown on diagram. Capacitor and Bracket are attached to the back of the control box. * When replacing reversing valve and/or coil refer to Service Bulletin WS-SB WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 3

14 Field Installed Accessories Relays Description Part Number Auxiliary Relay- 24V, Normally Open. 24V PDT 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 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- " 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 /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..0 GPM Return Flow Controller, Ball Valve, (2) P/T, 24" Stainless Steel Hose..5 GPM GPM GPM GPM GPM GPM GPM GPM GPM GPM WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 4

15 Field Installed Accessories Continued MicroTech Sensors Description Part Number MicroTech Room Sensor- LED- Tenant Override MicroTech Room Sensor- LED- Tenant Override- Thermostat MicroTech Room Sensor- LED- Tenant Override- Setpoint MicroTech Room Sensor- LED- Tenant Override- Setpoint- Thermostat 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 Remote Sensor for stats & Mark IV Unit Control Accessories Description Specification Part No. Multiple Unit Control Panel- Master & 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. 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 30 Cover- Control Box Circuit Board-Relay Stand Off- Circuit Board Box WSHP; WFCV,WFCW Design Rev. D 03/8 RPL / Page 5

16 Critical Daikin Applied OEM Parts Are What Your HVAC Unit Needs! McQuay Enfinity Vertical WSHP WFCV, WFCW 007, 009, 02 Design Critical Components Unit Sizes Voltage Part Number Control Mark IV DC (04/94 to 3/05) ALL ALL K Mark IV AC (03/05 & later) ALL ALL Microtech 2000 with LonMark ALL ALL Microtech 2000 w/lonworks ALL ALL Alerton ALL ALL Compressor Compressor Compressor /60/ Compressor 007, Compressor Compressor /60/ Compressor 009, Compressor Compressor /60/ Compressor 02, Blower Motor Motor, Blower, /20 HP Motor, Blower, /20 HP /60/ Motor, Blower, /20 HP Motor, Blower, /20 HP Motor, Blower, /8 HP 009, Motor, Blower, /8 HP 009, /60/ Motor, Blower, /8 HP 009, Motor, Blower, /8 HP 009, Fan Housing & Wheel Housing, Blower 007, 009 N/A Housing, Blower 02 N/A Wheel, Blower 007, 009 N/A Wheel, Blower 02 N/A Sensor Air Temperature Sensor ALL N/A Water Temperature Sensor ALL N/A Call Your Local Daikin Applied Parts Distributor For All Your Parts Needs. To Locate A Distributor, Go To or Call PARTS Rev. D 03/208 CPL Page of