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WMC
Parts List
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McQuay WMC Parts List

Replacement Parts List No. 700005500
Revision D 9/2011
Water-Cooled Magnetic Bearing
Centrifugal Chiller
WMC
150A
To find your McQuay parts distributor, call 1-800-377-2787 or visit www.mcquay.com
Contents
Parts List Revision History ....................................................................................................................... 3
Complete Model Nomenclature ..........................................................................................................4 - 5
Electrical Legend ..................................................................................................................................... 6
Unit Components ..................................................................................................................................... 7
Frictionless Compressor ..................................................................................................................... 8 - 9
Tubing - Liquid Line and Liquid Injection Line ........................................................................................ 10
Tubing - Discharge and Suction Lines ................................................................................................... 11
Condenser ............................................................................................................................................. 12
Evaporator ............................................................................................................................................. 13
Insulation ............................................................................................................................................... 14
Unit Controls:
Operator Interface Panel ............................................................................................................... 15
Single Point Connection Box ......................................................................................................... 16
Unit Control Box ........................................................................................................................17 - 18
Power Panels ............................................................................................................................ 19 - 22
Control Box Label ............................................................................................................................ 23
Parts List Revision History
Revision Date Description
NEW 06/2005 New A 12/08 Page 7 - Ref. #5 add ‘Suction’ and Ref #6 add ‘Discharge’ to description. B 2/2010 Page 7 - Added IGBT Assembly. Page 11 - Corrected Tube description. Page 21-22 - Added footnote for items that were TBD. C 4/2011 Page 5 - Removed Compressor part #s, added note. Page 7 - Removed BMCC part #s, added note. Page 20 - Corrected out-of-focus diagram. D 9/2011 Pages 4 & 5 - Added 2 pags to expand Model Nomenclature. Pages 7 thru 9: - Updated Compressor information. Page 12 - Updated Condenser information. Page 13 - Updated Evaporator information. Page 14 - Changed note for Insulation. Pages 15 thru 23 - Re-structured and updated Controls information.
13600 Industrial Park Blvd., P.O. Box 1551, Minneapolis, MN 55440 (763) 553-5330
Complete Model Nomenclature
Complete Model Nomenclature
WMC 150A TT 13R NN N A E2209 BE 2RA C4 0440 CC Y A C2009 BLYY 2RAYYY
Code 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18
C4 1050 CCYY YY A A 134 124 EE 2LEYYA SMYDSYYS 0170 Y YY B
Code 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
02 Size (in nominal tons)
150A= 150 Tons, Dual Compressors
03 Unit Configuration TT= Standard Compressor, Single Circuit
04 Voltage
13R= 460V / 60Hz
05 Always NN
06 Always N
07 Compressor Model Revision
A= Compressor Revision A
08 Evaporator
E2209= 22" Diameter, 9 ft. length E2212= 22" Diameter, 12 ft. length
09 Evaporator Tubes
Digit 1 Tube Count Digit 2 E= 0.025 wall, CU Turbo, EHP
10 Evaporator Heads Digit 1
2= 2 Pass Digit 2 R= Right Hand Inlet Nozzle L= Left hand Inlet Nozzle Digit 3 A= Standard Victaulic B= Flanged
13 Evaporator Tube Sheet & Head Material
Digit 1 C= Carbon Steel Tube Sheet Digit 2 C= Carbon Steel Heads
14 Always Y
15 Evaporator Model Revision
A= Evaporator Revision A
16 Condenser C2009= 20" Diameter, 9 ft. length C2012= 20" Diameter, 12 ft. length
17 Condenser Tubes Digit 1
Tube Count Digit 2 L= 0.025 wall, CU Turbo, CSL Digits 3-4 Always YY
18 Condenser Heads
Digit 1 2= 2 Pass 3= 3 Pass Digit 2 R= Right Hand Inlet Nozzle L= Left hand Inlet Nozzle Digit 3 A= Standard Victaulic B= Flanged Digits 4-6 Always YYY
11 Evaporator Design Pressure Digit 1
C= 200 PSIG Refrigerant Side Digit 2 1= 150 PSIG Waterside, ASME Code 2= 250 PSIG Waterside, ASME Code 3= 350 PSIG Waterside, ASME Code 4= 150 PSIG Waterside, non-ASME Code 5= 300 PSIG Waterside, non-ASME Code
12 Evaporator Leaving Water Temperature
Degrees Fahrenheit x 10
19 Condenser Design Pressure
Digit 1 C= 200 PSIG Refrigerant Side Digit 2 1= 150 PSIG Waterside, ASME Code 2= 250 PSIG Waterside, ASME Code 3= 350 PSIG Waterside, ASME Code 4= 150 PSIG Waterside, non-ASME Code 5= 300 PSIG Waterside, non-ASME
20 Condenser Max Leaving Water Temperature Degrees Fahrenheit x 10
Complete Model Nomenclature
21 Condenser Tube Sheet & Head Material
Digit 1 C= Carbon Steel Tube Sheet Digit 2 C= Carbon Steel Heads Digits 3-4 Always YY
22 Always YY
23 Condenser Model Revision
A= Condenser Revision A
24 Pressure Vessel Code
A= ASME J= Australia ASME with documentation P= Chinese T= Taiwan ASME with documentation 1= CRN British Columbia 2= CRN Alberta 3= CRN Saskatchewan 4= CRN Manitoba 5= CRN Ontario 6= CRN Quebec 7= CRN New Brunswick 8= CRN Nova Scotia 9= CRN Prince Edward Island 0= CRN Newfoundland U= CRN Yukon
25 Refrigerant
134= Refrigerant 134a
26 Refrigerant Weight example: 124= 1240 lbs divided by 10
27 Expansion Valve
EE= Electronic Expansion Valve
29 Front End Box Options
Digit 1 S= Single Point M= Multi-Point Digit 2 M= Unit Mounted VFD Digit 3 Y= Standard Filter P= EMI Filter Digit 4 D= Disconnect Switch P= Power Block Digit 5 Always S Digit 6 Y= Standard Short Circuit Current Rating Digit 7 Y= No Ground Fault Protection F= With Ground Fault Protection Digit 8 S= Standard Load Balance
30 Rated Load Amps Compressor RLA
31 Always Y
32 Insulation
Digit 1 H= 3/4" insulation on Evap Shell, Suction Piping, Compressor Inlet, Motor Barrel, plus High Humidity 3= 1-1/2" insulation on Evap shell; 3/4" insulation on Suction Piping and Compressor Inlet Y= No Shell Insulation Digit 2 1= Return Head Insulation 2= Return and Connection Head Insulation Y= No Head Insulation
28 Controls
Digit 1 2= Microtech II Digit 2 L= Large Controller Digit 3 E= English Language Digit 4 Always Y Digit 5 B= BACnet w/ RS485 and Ethernet L= LonMark M= ModBus S= Serial Port w/RS232 Y= None Digit 6 A= NEMA 1
33 Water Flow Indication
B= Water Flow Indicator on Evaporator and Condenser
Electrical Legend
A .................................... Alarm
B1-B10 ........................... Analog Input Connections
CAP ............................... Capacitor
CB .................................. Circuit Breaker
CBX ............................... Compressor Box
CC .................................Compressor Controller
CF .................................. Condenser Flow Switch
CO ................................. Compressor Off Relay
CP1 & CP2 .................... Condenser Pump Cycling Relay
CR .................................Compressor Relay
CT .................................. Control Transformer
CWI ................................ Condenser Water Interlocks
C1 .................................. Cooling Tower Fan Relay (Stage 1)
C2 .................................. Cooling Tower Fan Relay (Stage 2)
C3 .................................. Cooling Tower Fan Relay (Stage 3)
C4 .................................. Cooling Tower Fan Relay (Stage 4)
EF .................................. Evaporator Flow Switch
EP1 & 2 .........................Evaporator Pump Cycling Relay
EWI ................................ Evaporator Water Interlocks
EXV ...............................Electronic Expansion Valve
GDB ............................... Guardistor Board
GFP ............................... Ground Fault Protector
HG ................................. Hot Gas Solenoid
HR1 & 2 ......................... Heater Relay
ID1 thru 18 ..................... Digital Input Connections
IR2 thru 4 ....................... Isolation Relay for T2 thru T4
L1................................... Liquid Injection Solenoid
LR ......................................Latch Relay
MA .....................................Contactor Auxillary
MC ....................................Motor Cooling Solenoid
MCR ..................................Motor Contactor Relay (Starter)
MHP ..................................Mechanical High Pressure Switch
NO1-18, NC1-18 ................Digital Output Connections
OC .....................................Oil Cooler Solenoid (120 or 24 VAC)
OL .....................................Overload
OP ....................................Oil Pump Contactor
PTB ....................................Pressure Transducer Board
RL ......................................Reactor, Line Side
SA(Unload), SB(Load) .......Vane Control Solenoids
SC ......................................Signal Converter
SW1 ...................................Unit Start/Stop Switch
SW2 ...................................Compressor Manual Stop Switch
SW3 ...................................Remote Start/Stop Switch
SW4 ...................................Mode Switch
SW5 ...................................Emergency Stop Switch
T1 ......................................Transformer (120VAC)
T2 ......................................Transformer (24VAC)
T3 ......................................Transformer (24VAC)
T4 ......................................Transformer (24VAC)
T5 ......................................Transformer (24VAC) / Isolation
VC ......................................Vane Close Switch
VO .....................................Vane Open Switch
VR ......................................Voltage Relay
UC .....................................Unit Controller
Unit Components
175
014
001
001
320
321
183
186
Ref. # Description Part Number Quantity
001 Compressor See Note 2
014 Mini Ball Valve 071596201 4 175 Relief Valve 200# 735045817 1 183 Shut Off Valve 735039977 * 1 186 Relief Valve 200# 735045817 1 320 Flow Sensor 330571401 2 321 Cable, Flow Sensor, 5 meters 330571402 2
Note: Contact McQuay Parts with the compressor model, compressor part number, compressor serial number and BMCC revision. On dual compressor units, provide same information on other compressor to ensure BMCC compatibility.
* Can use Valve 735039964 and Pipe Nipple 735031797 in place of this valve, if needed.
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