McQuay WGTH038 Parts List

Replacement Parts List No. 700025100

New 8/2012

SmartSource™ 2- Stage

Water Source Heat Pump

WGTH, WGTV

Sizes 026 - 072

Design 1

To ﬁnd your Daikin McQuay parts distributor, call 1-800-377-2787 or visit www.DaikinMcQuay.com

Contents

Parts List Revision History ....................................................................................................................................... 3

Nomenclature

Serial Number ..................................................................................................................................................... 4

Model Number ................................................................................................................................................. 4-6

Electrical Legend ..................................................................................................................................................... 7

Typical Refrigeration Cycles ................................................................................................................................... 8

Blower Fan Assembly .............................................................................................................................................. 9

Electric Heat .......................................................................................................................................................... 10

Refrigeration Circuit .......................................................................................................................................... 11-12

Primary Drain Pan, Auxilliary Drain Pan` ............................................................................................................... 13

Base Pan ............................................................................................................................................................... 13

Water Flow Control ................................................................................................................................................ 14

Desuperheater ....................................................................................................................................................... 14

Ground Loop .......................................................................................................................................................... 14

Control Box

Microtech III Controller ...................................................................................................................................... 15 .

Field Installed Accessories ............................................................................................................................... 16-19

Critical Parts List............................................................................................................................................ CPL1-2

2 Tier 2- Stage WSHP; WGTH, WGTV 026- 072 Design 1 New 8/12 RPL 700025100 / Page 2

Parts List Revision History

Rev. Date Description

NEW 8/12 NEW

13600 Industrial Park Blvd., P.O. Box 1551, Minneapolis, MN 55440 (763) 553-5330

2 Tier 2- Stage WSHP; WGTH, WGTV 026- 072 Design 1 New 8/12 RPL 700025100 / Page 3

Nomenclature

Serial Number

AUB U 12 05 00148

Plant Identiﬁcation Abbreviation

AUB = Auburn

U= Unit

Week of Manufacture

Year of Manufacture

12= 2012 13= 2013

etc.

Serial Number (build sequence)

Model Number

W GTH 026 B 1 E WL R T 4 Y Y Y C S YY Y B 2 A Y E Y Y 2L B A Y Y Y YYY Y

Code 01 02-03 04 05 06 07 08 09 10 11 12 13 14 15 16 17-18 19 20 21 22 23 24 25 26 27 28 29 30 31 32-34 35

YYY S Y Y B A B A Y A T Y C Y YY Y Y 2 Y Y S A L K Y Y Y Y YY Y Y

Code 36-38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66-67 68 69

A Y Y Y Y A A Y C Y Y YY FF ST ST YY YYY Y C Y Y YY 1

Code 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92

Code 01= Unit Type W= Water Source Heat Pump

Code 02= Model Type GS= High Efﬁciency, 2- Stage

Code 03= Conﬁguration H= Horizontal V= Vertical

Code 04= Unit Size (BtuH Nominal Cooling) 026= 26000 032= 32000 038= 38000 044= 44000 049= 49000 064= 64000 072= 72000

Code 05= Unit Control B= MicroTech III Unit Controller

Code 06= Design Series (Vintage) 1= Design 1

Code 07= Voltage E= 208-230/60/1 F= 208-230/60/3 J= 265/60/3 K= 460/60/3

Code 09= Return Air Location L= Left-Hand Return Air & Right-Hand Piping R= Right-Hand Return Air & Right-Hand Piping

Code 10= Discharge Air Location E= End (Horizontal Unit only) T= Top (Vertical Unit only) S= Straight (Horizontal Unit only)

Code 11= Fan Motor 4= ECM Constant CFM

Code 12= Dehumidiﬁcation Option B= Hot Gas Reheat Smart Dehumidiﬁcation C= Simpliﬁed Dehumidiﬁcation (Lower CFM no HGRH or no Humidistat) D= Humidistat Controlled Dehumidiﬁcation (No HGRH) E= Humidistat only Y= None

Code 13= Sound Packages A= Premium Y= None

Code 14= IAQ Packages (Indoor Air Quality) Y= None

Code 15= Coaxial Heat Exchanger Construction C= Copper Inner Tube- Steel Outer Tube S= Cupro-Nickel Inner Tube- Steel Outer Tube

Code 08= Range for Entering Water/Glycol Temp. GW= Ground Water WL= Water Loop GL= Ground Loop

Code 16= Primary Air Coil Options S= Standard E= E-Coated

Codes 17-18= Always YYY

Continued on next page.

2 Tier 2- Stage WSHP; WGTH, WGTV 026- 072 Design 1 New 8/12 RPL 700025100 / Page 4

Nomenclature

Code 19= Communication Module B= BACnet F= BACnet - WSHP System L= LonWorks Y= None

Code 20= Filter Rack 2= 4-Sided, 2" w/Duct Collar & Door 3= 4-Sided, 2" w/Duct Collar, Door, Hi-Merv Seal 4= 4-Sided, 4" w/Duct Collar, Door, Hi-Merv Seal Y= None

Code 21= Filter Type A= 2" Disposable E= Merv 8 Factory Installed G= Merv 13 (4" thick) Factory Installed Y= None

Code 22= Water Coil- Indoor Air E= Waterside Economizer Y= None

Code 23= Electric Heating- Indoor Air C= 5.0 kw Internal Electric Heater E= 10.0 kw Internal Electric Heater F= 15.0 kw Internal Electric Heater- 2 Stage G= 20.0 kw Internal Electric Heater- 2 Stage P= Control for Electric Heat, Single 24V Signal (Field Installed Duct Heater by Others) Y= None

Code 29= Coaxial Coil Supply Liquid Strianer Y= None

Code 30= Always Y

Code 31= Desuperheater Water Flow Options Q= Pump 208-230/60/1V Y= None

Codes 32- 34= Always YYY

Code 35= Water Coil Piping (HW or Waterside Economizer) A= 3-Way, Motorized- 24V Valve Control, NO to Coax Y= None

Codes 36-38 = Always YYY

Code 39= Primary Drain Pan Material S= Stainless Steel

Code 40= Secondary Drain Pan Material Y= None

Code 41= Compressor Insulation B= Sound Blanket P= Premium Y= None

Code 42= Compressor Isolation B= Isolated Base

Code 24= Control Secondary Heat Type B= Boilerless Electric Heat E= Emergency Heat P= Primary Electric Heat (No Heat Pump Heating) S= Supplemental Heat Y= None

Code 25= Desuperheater (Hot Water Generator) D= Desuperheater Y= None

Code 26= Loop Pump 1S= One Low Head 230 Volt Pump, Grundfos UP26-99F 1L= One High Head 230 Volt Pump, Grundfos UP26-116F 2S= Two Low Head 230 Volt Pump, Grundfos UP26-99F 2L= Two High Head 230 Volt Pump, Grundfos UP26-116F 3S= One Low Head 115 Volt Pump, Grundfos UP26-99F 4S= Two Low Head 115 Volt Pump, Grundfos UP26-99F YY= None

Code 27= Coaxial Coil Supply Liquid Flow Control B= 2-Way, Motorized- 24V Valve Control, NO C= 2-Way, Motorized- 24V Valve Control, NC Y= None

Code 28= Coaxial Coil Supply Liquid Auto Flow Reg G= 5.0 GPM L= 11.0 GPM H= 6.0 GPM M= 12.0 GPM I= 8.0 GPM N= 13.0 GPM J= 9.0 GPM P= 15.0 GPM K= 10.0 GPM S= 18.0 GPM Y= None

Code 43= Insulation- Compressor Compartment A= 1/2" Fiberglass Skin Faced B= 1/2" Fiberglass Foil Faced C= 3/8" Closed Cell Foam

Code 44= Insulation- Air Side A= 1/2" Fiberglass Skin Faced B= 1/2" Fiberglass Foil Faced C= 3/8" Closed Cell Foam P= Premium

Code 45= Insulation- Piping A= Insulated Piping Y= None

Code 46= Always Y

Code 47= Cabinet Finish A= Powder Coat G= Galvanized Steel

Code 48= Cabinet Color T= Textured Charcoal Bronze W= Off White Y= None

Code 49= Always Y

Code 50= Fan Motor Control C= Various Speeds with 4 Adjustment Settings

Continued on next page.

2 Tier 2- Stage WSHP; WGTH, WGTV 026- 072 Design 1 New 8/12 RPL 700025100 / Page 5

Nomenclature

Code 51= Fan Motor Control location Y= None

Code 52= Always YY

Code 53= Disconnect Switch N= Non-Fused Y= None

Code 54= Future Use Only Y= None

Code 55= Control Transformer 1= 50VA 2= 75VA

Code 56= Thermostat/Sensor Control S= Sensor Control T= Thermostat Control

Code 57= Currrent Sensing Switches Y= None

Code 58= Condensate Overﬂow Protection S= Sensor

Code 59= High Pressure Switch A= 600 psi NC

Code 60= Low Pressure Switch or Sensor L= 7 psi NC

Code 61= Low Temp. Protection Compressor Suction K= 10K Thermistor

Code 62= Discharge Air Thermistor K= 10K Thermistor Y= None

Code 63= Leaving Supply Fluid Temp K= 10K Thermistor Y= None

Code 64= Entering Supply Fluid Temp K= 10K Thermistor Y= None

Code 65= Return Air Thermistor K= 10K Thermistor Y= None

Code 66-67= Always YY

Code 68= Terminal Block Connection Y= None

Code 69= Emergency Switch for Electric Heat Y= None

Code 70= Annunciator A= Yes

Code 71= Reset Button Y= None

Code 72 = Monitoring Y= None

Code 73= Emergency Stop Y= None

Code 74= External Binary Output 1 Y= None

Code 75= Expansion Device A= Thermal Exp. Valve Thermal Bulb & Equalizer Tube

Code 76= Alarm Relay A= Alarm Relay (Dry Contacts) Y= None

Code 77= Dirty Filter Sensor Y= None

Code 78= Reversing Valve C= Normally Open in Cooling Mode

Code 79= Outside Air Control Y= None

Code 80= Always Y

Code 81= Boilerless Electric Heat Setpoint GL= Glycol 28F WA= Water 55F YY= None

Code 82= Freeze Fault Protection FF= Freeze Fault Protection YY= None

Code 83= Occupied Setpoint Differential (1-5F) ST= Setpoint (1˚F)

Code 84= Unoccupied Setpoint Differential (2-10F) ST= Setpoint (2˚F)

Code 85= Hydronic Heating on Setpoint (70-90F) YY= None

Code 86= BACnet Address YYY= None

Code 87= Always Y

Code 88= Agency C= ETL, CETL, ARI

Code 89= Conformance Y= None

Code 90= Future Use Only Y= None

Code 91= Extended Warranty

Code 92= Product Style

2 Tier 2- Stage WSHP; WGTH, WGTV 026- 072 Design 1 New 8/12 RPL 700025100 / Page 6

Electrical Legend

AN1, 2 ........................ LED/Annunciator

C11 - 12 ..................... Capacitor, Compressor

C01 - 04 ..................... Capacitor, Fan

C1, 2 .......................... Compressor Motor

COS ........................... Condensate Overﬂow Sensor

DAT ............................ Discharge Air Temp. Sensor

HP1, 2 ........................ High Pressure Switch

ISO-NC ...................... Isolation Valve, Normally Closed

ISO-NO ...................... Isolation Valve, Normally Open

LT1, 2 ......................... Suction Line Temp Sensor

LWT ........................... Leaving Water Temp Sensor

MCB ........................... Main Control Board

MIII ............................. MicroTech III Main Board

NCB ........................... Network Control Board

RAT ............................ Return Air Temp Sensor

RV1, 2 ........................Reversing Valve Solenoid

TR1 ............................ Transformer, Control

TR2 ............................ Transformer, Fan Motor

TR3 ............................ Transformer, Loop Pump

2 Tier 2- Stage WSHP; WGTH, WGTV 026- 072 Design 1 New 8/12 RPL 700025100 / Page 7

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