McQuay. Console Water Source Heat Pump. WMH, WMG, WMK, WCH, WCG 015, 019 Vintage A. Last Manufactured: 1993

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1 Replacement s List No Revision E 10/2015 McQuay Console Water Source Heat Pump WMH, WMG, WMK, WCH, WCG 015, 019 Vintage A Last Manufactured: 1993 To find your Daikin Applied parts distributor, call or visit

2 Contents s List Revision History... 3 Nomenclature Serial... 4 Model... 4 Refrigeration Circuit... 5 Fan Motor and Housing Assembly... 6 Control Section Diagram... 7 Components... 8 Electric Heat Assembly... 9 Field Installed Accessories Critical s List... CPL1 NOTE: For parts information on MicroTech Loop Water Controller model LWC refer to Replacement s List No WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 2

3 s List Revision History Revision Date A 06/98 Updated to OnLine format. Added Revision History page. Changes made to: Page 7 - Corrected part numbers for Fan Motor. Page 16 - Corrected part numbers for Damper Motor (Key381) B 10/99 Page 15 - Updated part no. & added Field Ref. No. for Valve, Motorized, N.O. 208/230V. C 04/02 Page 7 - Added note #1 that fan motor # is obsolete with no replacement. D 04/05 Page 6 - Coaxial Coil pn was changed from to E 10/15 All Page- Update to Daikin format. Delete sheet metal and add footnote #1. Title Page- Add models WCH & WCG. CPL1- Add Critical s List. Daikin Applied, Industrial Park Blvd., P.O. Box 1551, Minneapolis, MN (763) WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 3

4 Nomenclature Serial 7 T A Plant Identification 7 = Auburn Year Manufactured S = 1987 T = 1988 U = 1989 Etc. Engineering Revision Serial (Building Sequence) Month Manufactured A = January B = February C = March D = April E = May F = June G = July H = August J = September K = October L = November M = December Model WMH 15 A M N L Unit Type WMH = Console Water Source Heat Pump WMH= Heat Pump Unit WMG= Cooling Only Unit WMK= Cabinet Only WCH= Heat Pump Chassis Only WCG= Cooling Only Chassis Unit Size 015 = 15,000 Btu/Hr. Cooling 019 = 19,000 Btu/Hr. Cooling Design Vintage = A Piping Hand L = Left R = Right Voltage G = /60/1 wired for 208V N = 265/60/1 J = 230/50/1 A = 115/60/1 V = /60/1 wired for 230V Controls E = Electromechanical Printed Board M = Mark IV Printed Circuit Board C = MicroTech Unit Controller WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 4

5 Refrigeration Circuit Components Ref. No. 208/230/60/1 265/60/1 230/50/1 208/230/60/1 265/60/1 230//50/1 N/S Spring, Compressor Mounting N/S Grommet, Compressor Mounting N/S Sleeve, Compressor Mounting N/S Compressor N/S Overload, Compressor Capacitor, 15MFD/370V N/S Capacitor, 15MFD/440V Capacitor, 25MFD/370V Capacitor, 25MFD/440V N/S Bracket, Capacitor N/S Reversing Valve N/S Solenoid, Reversing Valve N/S Coil CO-AX (Water to Refrigerant) N/S Support, Fin Tubular Coil, Right Side N/S Support, Fin Tubular Coil, Left Side N/S Condensate Pan N/S Fin Tubular Coil (Air To Refrigerant) N/S Capillary Tube N/S Strainer N/S Fusible Plug N/S Fitting, Fusible Plug N/S High Pressure Switch N/S Thermostat, Low Temp. Cutout N/S Clip, Thermostat N/S= Not shown. WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 5

6 Fan Motor and Housing Assembly Components Ref. No. 208/230/60/1 265/60/1 230/50/1 208/230/60/1 265/60/1 230//50/1 N/S Fan Deck N/S Fan Housing, Discharge Half N/S Fan Housing, Access Half N/S Wheel, Blower N/S Motor Mount N/S Clip, Motor Mount Motor, 1/8HP N/S Motor, 1/8HP Motor, 1/8HP N/S Clip, Compression Ring N/S Motor Capacitor, 4MFD/370V N/S Motor Capacitor, 6MFD/370V N/S Bracket, Capacitor N/S= Not shown. 1 Fan motor is obsolete with no replacement. WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 6

7 Control Section Diagram Stop/Start Switch Remote Control Mark IV Only Std. Mark IV Remote Electromechanical WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 7

8 Control Section Components Ref. No. 208/230/60/1 265/60/1 230/50/1 208/230/60/1 265/60/1 230//50/1 N/S Top Panel, Control Box Terminal Board Thermostat, ACO Thermostat, MCO Rocker Switch Knob, Thermostat Control Board, Mark IV Control Board, Electromechanical PC Board, MicroTech Switch, 2 Button Switch, 4 Button Escutcheon Plate, 2 Button Escutcheon Plate, 4 Button Switch, Low Temperature Switch, Momentary Relay, Circuit Board Shutdown Relay, Auxiliary Relay, Boilerless System Electric Heat Relay, Heater Plug, 15 Pin N/S Terminal Switch, Standby Electric Heat, Boilerless System Terminal Strip, Mark IV & Remote Thermostat Elec. Mech Terminal Strip, Remote Thermostat, Mark IV Only Relay, Motorized Valve Transformer N/S Air & Water Temperature Sensor 4EZS N/S= Not shown on diagram. 1 Please contact Daikin with unit model and serial number for part numbers or cabinet/chassis components. 2 Mark IV Control Board Units- When replacing reversing valves and/or coil refer to Service Bulletin WS-SB WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 8

9 Electric Heat Assembly Components Control Box Relay Elec. Heat Relay Heat Ref. No. 345 Heater, Dual Element, 1.0 KW/265V Heater, Dual Element, 2.0 KW/265V Heater, Dual Element, 3.0 KW/265V Heater, Dual Element, 3.0 KW/208V Switch, Limit Plug, 2-Pin Receptacle, 2-Pin WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 9

10 Field Installed Accessories Motorized Damper Assembly Fused Disconnect Assembly Ref. No. N/S Motorized Water Regulating Valve 2-Way Valve, NC, 265V Way Valve, NC, 208/230V Way Valve, NO, 265V Way Valve, NO, 208/230V Fused Disconnect Assy Fuse Holder, 20A Fuse Holder, 15A Fuse, 20A Fuse, 15A Switch, Rocker Motorized Outside Air Assembly 808 Damper Door Assembly Damper Motor Assy, 230V Damper Motor Assy, 265V Operating Arm Spring Hook Spring, Extension, Bushing Toggle Switch, Override Damper Door Link WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 10

11 Field Installed Accessories Thermostats & Subbases- Mark IV Control Units only. Standard Manual Changeover Thermostat & Subbase. Honeywell T834C with no LED switch. Mounts vertically. System "Heat-Off-Cool" switch and fan "On-Auto" switch. Standard Automatic Changeover Thermostat & Subbase. Honeywell T874/Q674. LED for "Service". Mounts horizontal. System "Off-Auto" switch and fan "On-Auto" switch. Standard Manual & Auto Changeover Thermostat & Subbase. Honeywell T874/Q674. LED for "Service". Mounts horizontal. System "Off-Auto" switch and fan "On-Auto" switch. Deluxe Automatic Changeover Thermostat & Subbase with Night Setback. Honeywell T874/Q674. LED for "Service". Mounts horizontal. Requires grounding of unit U terminal. Night setback bulb set to 12 F below day heat setpoint. System Off-Auto switch and fan On-Auto-Override switch. Standard Automatic Changeover Thermostat & Subbase for Operating Two Units. Honeywell T874/Q674. LED for "Service". Mounts horizontal. System "Off-Auto" switch. Programable MicroElectronic Thermostat. Digistal HP-1000DC. Auto or maual changeover. Mounts horizontal. System "Off-Auto" switch, temp. Heat-Auto-Cool switch and fan "On-Auto" switch. Programable MicroElectronic Thermostat with Remote Sensor. Digistal HP-1000DC/BO. Auto or maual changeover. Mounts horizontal. System "Off-Auto" switch, temp. Heat-Auto-Cool switch and fan "On-Auto" switch. Includes Subbase Thermostat Subbase Thermostat Subbase Thermostat Subbase Thermostat Subbase Includes Subbase Includes Subbase Thermostats & Subbases- Electromechanical Units only. Standard Manual Changeover Thermostat & Subbase. Honeywell T834C with no LED switch. Mounts vertically. System "Heat-Off-Cool" switch and fan "On-Auto" switch. Standard Automatic Changeover Thermostat & Subbase. Honeywell T874/Q674. LED for "Service". Mounts horizontal. System "Off-Auto" switch and fan "On-Auto" switch. Programable MicroElectronic Thermostat. Digistal HP-1000DC. Auto or maual changeover. Mounts horizontal. System "Off-Auto" switch, temp. Heat-Auto-Cool switch and fan "On-Auto" switch. Programable MicroElectronic Thermostat with Remote Sensor. Digistal HP-1000DC/BO. Auto or maual changeover. Mounts horizontal. System "Off-Auto" switch, temp. Heat-Auto-Cool switch and fan "On-Auto" switch. Includes Subbase Thermostat Subbase Includes Subbase Includes Subbase WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 11

12 Field Installed Accessories Unit Accessories Supply & Return Hoses. Includes 1/2 fitting, 2 per unit. Rubber 12" Rubber 18" Fire Rated 12" Fire Rated 18" Ball Valve, 1/2 FPT, two per unit Cleanable Filters Disposable Filter High Sill Low Sill High Sill Low Sill Thermostat Guard & Accessories Night Setback Thermostat. Honeywell T822. Mounts vertically. No LED. No switches. For applications requiring a separate NSB stat. * Do not use with Deluxe ACO Thermostat and Subbase and Universdal Thermostat Guard. Honeywell TG500A. Clear Plastic with ring base, lock and keys Deluxe Locking Cover For T874/Q674 Thermostats. Honeywell TG504A. Applies only to T874/Q * Thermostats. Replaces standard thermostat cover. Includes cover, lock and keys. Adapter Plate for T874/Q674 Thermostats. Allows a horizontal thermostat to be mounted on a vertical junction box. 7-Day Timer Clock Override Timer- 1 Hour. Normally Closed - Timed Open Override Timer- 6 Hour. Normally Closed - Timed Open Control Accessories Shutdown Relay Kit for Electromechanical Control Units. For shutdown of the unit from an external 24V AC power source. Relay mounts at control box. Auxiliary Relay. 24 volt DC relay to be wired to low voltage terminal block to allow a set of SPDT pilot duty contacts to operate miscellaneous devices when the fan or compressor operates. Multiple Unit Control Panel. Allows master unit to be controlled by any thermostat. Slave units "follow" with paralleled operation. Not recommended with Boilerless System. Do not use when Mark IV night setback, load shed, override or emergency shutdown logic is being used Master & 1 Slave WSHP; Console WSHP; WMH,WMG,WMK,WCH,WCG 015, 019 Vin. A Rev. E 10/15 RPL /Page 12

13 Critical Daikin Applied OEM s Are What Your HVAC Unit Needs! McQuay Console Water Source Heat Pump WMH, WMG, WMK, WCH, WCG 015, 019 Vintage A Critical Components Unit Sizes Voltage Control Control Board, Mark IV 015, 019 ALL Electromechanical 015, 019 ALL PC Board, MicroTech , 019 ALL Compressor Compressor /60/ Compressor /60/ Compressor /50/ Compressor /60/ Compressor /60/ Compressor /50/ Fan Motor Motor, 1/8HP 015, /60/ Motor, 1/8HP 015, /60/ Motor, 1/8HP 015, /50/ Fan Motr and Housing Assy Fan Housing- Discharge Half 015, 019 N/A Fan Housing- Access Half 015, 019 N/A Wheel, Blower 015, 019 N/A Sensor Air & Water Temperature Sensor 015, 019 N/A 4EZS9158 Call Your Local Daikin Applied s Distributor For All Your s Needs. To Locate A Distributor, Go To or Call PARTS Rev. E 10/2015 CPL Page 1 of 1