Replacement Parts List No. 700014700
Revision B 10/2011
Magnitude™ Water-Cooled
Magnetic Bearing Centrifugal Chiller
WMC
400DSC
Vintage A
To find your McQuay parts distributor,
call 1-800-377-2787 or visit www.mcquay.com
Contents
Parts List Revision History......................................................................................................... 3
Electrical Legend ....................................................................................................................... 4
Complete Model Nomenclature ............................................................................................ 5 - 6
Unit Components ....................................................................................................................... 7
Magnetic Bearing Compressor ............................................................................................8 - 11
Piping - Discharge ................................................................................................................... 12
Piping - Liquid Line and Motor Cooling.................................................................................... 13
Condenser- Standard Heads ................................................................................................... 14
150 PSI Standard Heads- 1 Pass ...................................................................................... 15
150 PSI Standard Heads- 2 Pass ...................................................................................... 15
150 PSI Standard Heads- 3 Pass ...................................................................................... 15
Condenser- Water Box Heads ................................................................................................. 16
150 PSI Water Box Heads- 1 Pass .................................................................................... 17
150 PSI Water Box Heads- 2 Pass .................................................................................... 17
150 PSI Water Box Heads- 3 Pass .................................................................................... 17
Evaporator- Standard Heads .................................................................................................. 18
150 PSI Standard Heads- 1 Pass ...................................................................................... 19
150 PSI Standard Heads- 2 Pass ...................................................................................... 19
150 PSI Standard Heads- 3 Pass ...................................................................................... 19
Evaporator- Water Box Heads ................................................................................................ 20
150 PSI Water Box Heads- 1 Pass .................................................................................... 21
150 PSI Water Box Heads- 2 Pass .................................................................................... 21
150 PSI Water Box Heads- 3 Pass .................................................................................... 21
Insulation ................................................................................................................................. 22
Unit Controls ............................................................................................................................ 23
Unit Control Box .......................................................................................................... 24 - 25
Power Panel ................................................................................................................ 26 - 27
Control Box Label............................................................................................................... 28
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 2
Parts List Revision History
Revision Date Description
NEW 08/2011 New
A 02/2011 Page 24 - Corrected part number for Bub. 107 from 330276601 to 330276603.
Added sub-components of OITS Circuit Board Assy.
B 10/2011 Pages 9-11: Added one page. Corrected and expanded Compressor components.
Page 28: Added page for Control Box Label.
®
13600 Industrial Park Blvd., P.O. Box 1551, Minneapolis, MN 55440 (763) 553-5330
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 3
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
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 4
Complete Model Nomenclature
Complete Model Nomenclature
WMC 400D SC 25R NN N A E3012 BE 2RA C4 0440 CC Y A C2612 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 DY 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)
400D= 400 Tons, Dual Compressors
03 Unit Configuration
SC= Vintage A, Single Circuit
04 Voltage
25R= 460V / 60Hz
05 Always NN
06 Always N
07 Compressor Model Revision
A= Compressor Revision A
08 Evaporator
E3012= 30" Diameter, 12 ft. length
09 Evaporator Tubes
Digit 1
B= 300 Tubes
C= 262 Tubes
Digit 2
E= 0.025 wall, CU Turbo, EHP
10 Evaporator Heads
Digit 1
1= 1 pass
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
C= Marine Box, Front, Victaulic
E= Marine Box, Front, Flanged
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
0440= Degrees Fahrenheit x 10
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
C2612= 26" Diameter, 12 ft. length
17 Condenser Tubes
Digit 1
B= 426 Tubes
C= 381 Tubes
Digit 2
L= 0.025 wall, CU Turbo, CSL
Digits 3-4
Always YY
18 Condenser Heads
Digit 1
1= 1 pass
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
D= Marine Box, Front, Victaulic
F= Marine Box, Front, Flanged
Digits 4-6
Always YYY
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 Code
20 Condenser Max Leaving Water Temperature
1050= Degrees Fahrenheit x 10
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 5
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
DY= Electronic Expansion Valve
EY= Self=Mfg’d Electronic Expansion Valve
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
E= BACnet w/ IP Ethernet
L= LonMark
M= ModBus
S= Serial Port w/RS232
Y= None
Digit 6
A= NEMA 1
29 Front End Box Options
Digit 1
S= Single 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
H= High 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
0170= 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
33 Water Flow Indication
B= Water Flow Indicator on Evaporator and Condenser
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 6
H020
H020
H021
H030
H021
H030
H030
Unit Components
001
F022
001
F030
A050
F021
F022
A020
Ref. # Description Part Number Qty.
001 Compressor, TT500 (RLA range 126-160) 332017704 2
A020 Compressor Isolator 330527701 8
A050 Butterfly Valve 073062103 2
F021 Shut Off Valve 735039977 1
F022 Relief Valve, 200# 735045817 3
F030 Relief Valve, 200#, Angle 735045818 2
H020 Flow Sensor 330571401 2
H021 Cable, Flow Sensor 330571402 2
H030 Sensor Well 047441511 6
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 7
Magnetic Bearing Compressor
013
016
017
003
018
012
014
004
006
007
011
002
008
010
009
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 8
Magnetic Bearing Compressor
Quantity
Ref. # Description Part Number per
compressor
002 Kit, Module, Bearing PWM 300040127 1
003 Kit, DC/DC Converter Assy, 400-460V 300042897 1
004 Kit, Module, Backplane Assy 300042899 1
006 Kit, End Cap Assy 300048171 1
007 Kit, Insulation Cover, End Bell 300043829 1
008 Kit, Cover, Top Assy 300040136 1
009 Kit, Cover, Service Side Assy 300040137 1
010 Kit, Cover, Mains Input Assy 300040138 1
011 Kit, Cover, Capacitor Assy 300040139 1
012 Kit, Module Serial Driver 300043064 1
013 Kit, Module, Softstart, 460V 300043245 1
013 Kit, Module Softstart, 400V 300043853 1
014 Kit, Bearing Motor Compressor Control (BMCC) See Note 1
016 Kit, Input Mains Buss Bars 100416 1
017 Kit, IGBT Assy Manifold Cooling (w/o DC/DC Converter) 300043315 1
017 Kit, IGBT Assy Manifold Cooling (w/DC/DC Converter) 300043246 1
018 Kit, Bracket Mains Input Plate, 2.0” Diameter 300049170 1
018 Kit, Bracket Mains Input Plate, 2.5” Diameter 300049171 1
018 Kit, Bracket Mains Input Plate, 3.0” Diameter 300049172 1
018 Kit, Bracket Mains Input Plate, 3.5” Diameter 300049173 1
NS Kit, PCB Assy, Compressor Interface Connector 300043882 1
NS Kit, Soft Start Cooling Fan Assembly 300049137 1
NS Communication Converter Module 300049169 1
NS Kit, Terminal Power Block Assy 300043983 1
NS Kit, Cover Plate Assy 300049175 1
NS Kit, IGV Housing Assembly and O-Rings 300045254 1
NS Kit, IGV Motor Service 300048085 1
NS Kit, Heatsink Cooling Manifold SCR Assy 300049174 1
NS Kit, Sensor Assy, Temperature, Motor Rotor 300047246 1
NS Kit, Temperature Sensor 300048181 1
NS Kit, Tube, Connection to IGBT 300048170 1
NS Kit, Capacitor, IGBT Snubber 300043447 1
NS Kit, Sensor, Pressure/Temperature, Suction (blue dot) 300040130 1
NS Kit, Sensor, Pressure/Temperature, Discharge (red dot) 300040131 1
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.
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 9
Magnetic Bearing Compressor
Quantity
Ref. # Description Part Number per
compressor
NS Kit, Diode Rectifiers 300044087 1
NS Kit, Sensor Heatsink Diode Rectifiers Dual Cooling 300047204 1
NS Line Reactor, 180A 5% 300045658 1
NS Line Reactor, 240A 5% 300048177 1
NS Line Reactor, 180A, 10% 331557651 1
NS EMI/EMC Filter, 322A 300048960 1
NS Kit, Buss Assembly Connection Motor IGBT 300048961 1
NS Kit, Cooling Valves Assembly 300046568 1
NS Kit, Hermetic Feedthrough IGV - 4 Pin 300049176 1
NS Kit, Hermetic Feedthrough High Power 300045214 1
NS Kit, Hermetic Feedthru, Rear Bearing, 6-Pin 300043473 1
NS Kit, Hermetic Feedthru, Front Bearing, 4-Pin 300046599 1
NS Kit, Hermetic Feedthru, Bearing Sensor, 9-Pin 300045720 1
NS Kit, Buss Bar Assembly and Capacitors, 400V 300047251 1
NS Kit, Buss Bar Assembly and Capacitors, 460V 300043832 1
NS Kit, O-Ring, IGBT Assy 300043869 1
NS Kit, O-Ring, Ports Connection 3 300043968 1
NS Kit, O-Ring, IGV Assy 300043877 1
NS Kit, O-Ring, End Cap Assy 300043878 1
NS Kit, O-Ring, Service Side Small O-Rings 300043879 1
NS Kit, O-Ring, Cover Plate Assy 300043880 1
NS Kit, O-Ring, Suction Port Only 300048180 1
NS Bluetooth Serial Adapter Kit 300046950 1
NS Dielectric Grease 300045661 1
NS Kit, Compressor Mounting 300040125 1
NS Kit, Screws for Covers, M5, Stainless Steel 300046932 1
3
Includes O-Rings for Suction, Discharge and Economizer Ports.
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 10
Magnetic Bearing Compressor
Quantity
Ref. # Description Part Number per
compressor
NS Kit, Cable Harness, DC Bus Test Lead 200140 1
NS Kit, Cable Harness, DC/DC to Backplane 300047244 1
NS Kit, Cable Harness Assy, Compressor Interface 300047144 1
NS Kit, Cable Harness, Softstart SCR Gate 300044089 1
NS Kit, Cable Harness, Mtr Cooling & Coil Assy 300048754 1
NS Kit, Cable Harness, Compressor Controller 300044030 1
NS Kit, Cable Harness, Front Bearing Sensor 300047965 1
NS Kit, Cable Harness, Rear Bearing Sensor 300047966 1
NS Kit, Cable Harness, Motor Driver (IGBT to Backplane) 300044114 1
NS Kit, Cable Harness, Softstart AC/DC 300044098 1
NS Fuse, Slo Nano SMF 0.25A, 125V 300046528 1
NS Kit, Fuse 2A, 1000V, HVA, 3” 300045312 1
NS Kit, Fuses, Softstart 4 331877106 1
NS Kit, Fuses, Softstart 5 300046521 1
NS Kit, Fuse Nano SMF 1.0A, 125V 5 300046530 1
4
Used on Softstart Series 20 (Compressor Serial # 071975020) or before.
5
Used on Softstart Series 21 (Compressor Serial # 071975030) or later.
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 11
Piping - Discharge
C044
C031
Ref. # Description Part Number Qty.
C031 Gasket, 6.88 OD 070199120 6
C044 Check Valve 332630201 2
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 12
Piping - Liquid Line and Motor Cooling
E020
B003
B021
B002
Liquid Line
B020
B031
B024
B042
B043
E040
E031
E022
E053
Motor Cooling
Ref. # Description Part Number Qty.
B002 Sight Glass Saddle 330743304 1
B003 Sight Glass Cap 330508701 1
B020 Electronic Expansion Valve Assy, 650 Ton 332300201S 1
includes:
Electronic Expansion Valve Body 331861602 1
Electronic Expansion Valve Actuator 330386209 2
Site Glass 015997817 2
B021 O-Ring 735073633 1
B024 O-Ring 735043674 1
B031 Ball Valve, 3.12 330286010 1
B042 Strainer, 3.0 070977801 1
B043 Gasket, 4.15 070199104 1
E020 Flare Nut .500 000136100 2
E022 Strainer 735030506 2
E031 Ball Valve, .625 330286003 2
E040 Filter Drier, .625 735028827 2
E053 Ball Valve, .875 330286004 2
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 13
Head
351
Connection
End
Condenser- Standard Heads
331
330
110
Return
End
Return End Gasket
352
3- Pass
Return End Gasket
355
1 & 2- Pass
Head
350
2- Pass
Head
351
1 & 3- Pass
Conn. End Gasket
2 & 3- Pass
Conn. End Gasket
1- Pass
352
355
2-Pass, Left-Hand, Std. Victaulic (Front View)
Ref. # Description Part Number Qty.
110 Sight Glass Clear w/Ball 350229501 1
330 Shut-Off Valve 735039929 2
331 Cap, Flare 073243901 2
Code 18: 1 L A YYY
# Passes Connection Heads Future Use
1=1 Pass L= Left Hand A= Std. Victaulic
2=2 Pass R= Right Hand B= Std. Flanged
3=3 Pass C= Wtr. Bx. Vict.
D= Wtr. Bx. Flgd.
Head Types
Standard Victaulic Standard Flanged
Connection
Return
Connection
Return
1- Pass
2- Pass
3- Pass
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 14
Condenser- Standard Heads
150 PSI Standard Heads- 1 Pass
Ref. # Description Part Number Qty.
351 Assembly, Connection Head
26” Flanged Connection 331155101 2
26” Victaulic Connection 331153501 2
355 Gasket, Head 070304605 2
NS Screw, H5, 0.75 x 3.0 735033878 32 per head
NS Nut, 0.75-10 735029626 32 per head
NS = Not Shown
150 PSI Standard Heads- 2 Pass
Ref. # Description Part Number Qty.
350 Assembly, Return Head 332183102 1
351 Assembly, Connection Head
26” Flanged Connection 332188303 1
26” Victaulic Connection 332186503 1
352 Gasket, Connection Head 071557805K 1
355 Gasket, Return Head 070304605 1
NS Screw, H5, 0.75 x 2.5 735033877 32 per head
NS Nut, 0.75-10 735029626 32 per head
NS = Not Shown
150 PSI Standard Heads- 3 Pass
Ref. # Description Part Number Qty.
351 Assembly, Connection Head
26” Flanged Connection In-Only 331158704 1
26” Flanged Connection Out-Only 331158705 1
26” Victaulic Connection In-Only 331156904 1
26” Victaulic Connection Out-Only 331156905 1
352 Gasket, Head 071557805K 2
NS Screw- H5, 0.75 x 2.5 735033877 32 per head
NS Nut- 0.75-10 735029626 32 per head
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 15
Condenser- Water Box Heads
Head
366
Water Box
Cover Gasket
Conn. End Gasket
2 & 3- Pass
Conn. End Gasket
1- Pass
351
352
355
Connection
End
331
330
330
110
2-Pass, Left-Hand, Water Box Victaulic (Front View)
Return
End
Return End Gasket
3- Pass
352
Return End Gasket
355
1 & 2- Pass
350
351
366
Ref. # Description Part Number Qty.
110 Sight Glass Clear w/Ball 350229501 1
330 Shut-Off Valve 735039929 2
331 Cap, Flare 073243901 2
Code 18: 1 L A YYY
# Passes Connection Heads Future Use
1=1 Pass L= Left Hand A= Std. Victaulic
2=2 Pass R= Right Hand B= Std. Flanged
3=3 Pass C= Wtr. Bx. Vict.
D= Wtr. Bx. Flgd.
Return Head
2- Pass
Return Head
1 & 3- Pass
Water Box
Cover Gasket
1 & 3- Pass
(not shown)
Head Types
Water Box Victaulic Water Box Flanged
Connection
Return
Connection
Return
1- Pass
2- Pass
3- Pass
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 16
Condenser- Water Box Heads
150 PSI Water Box Heads- 1 Pass
Ref. # Description Part Number Quantity
351 Assembly, Connection Head
26” Flanged Connection 331155151 2
26” Victaulic Connection 331153551 2
355 Gasket, Head 070304605 2
366 Gasket, Water Box Cover 074521605 2
NS Screw- H5, 0.75 x 4.5 735033969 64 per head
NS Nut- 0.75-10 735029626 64 per head
NS = Not Shown
150 PSI Water Box Heads- 2 Pass
Ref. # Description Part Number Qty.
350 Assembly, Return Head 332183102 1
351 Assembly, Connection Head
26” Flanged Connection 331158753 1
26” Victaulic Connection 331156953 1
352 Gasket, Connection Head 071557855 1
355 Gasket, Return Head 070304605 1
366 Gasket, Water Box Cover 074521605 1
NS Screw- H5, 0.75 x 2.5, for Return Head 735033877 32 per head
NS Screw- H5, 0.75 x 4.5, for Wtr Bx conn. to Condenser 735033969 32 per head
NS Screw- H5, 0.75 x 4.0, for Water Box Cover 735033968 32 per head
NS Nut- 0.75-10, for Return Head 735029626 32 per head
NS Nut- 0.75-10, for Water Box Head 735029626 64 per head
NS = Not Shown
150 PSI Water Box Heads- 3 Pass
Ref. # Description Part Number Quantity
351 Assembly, Connection Head
26” Flanged Connection In-Only 331158754 1
26” Flanged Connection Out-Only 331158755 1
26” Victaulic Connection In-Only 331156954 1
26” Victaulic Connection Out-Only 331156955 1
352 Gasket, Head 071557855 2
366 Gasket, Water Box Cover 074521605 2
NS Screw- H5, 0.75 x 4.5, for Wtr Bx conn. to Condenser 735033969 32 per head
NS Screw- H5, 0.75 x 4.0, for Water Box Cover 735033968 32 per head
NS Nut- 0.75-10 735029626 64 per head
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 17
Evaporator- Standard Heads
Head
Conn. End Gasket
2 & 3- Pass
Conn. End Gasket
1- Pass
351
352
355
Connection
End
330
331
330
331
110
2-Pass, Left-Hand, Standard Victaulic (Front View)
Return
End
Return End Gasket
352
3- Pass
Return End Gasket
355
1 & 2- Pass
Head
350
2- Pass
Head
351
1 & 3- Pass
Ref. # Description Part Number Qty.
110 Sight Glass Clear w/Ball 350229501 1
330 Shut-Off Valve 735039929 2
331 Cap, Flare 073243901 2
Code 10: 1 L A
# Passes Connection Heads
1=1 Pass L= Left Hand A= Std. Victaulic
2=2 Pass R= Right Hand B= Std. Flanged
3=3 Pass C= Wtr. Bx. Vict.
D= Wtr. Bx. Flgd.
Head Types
Standard Victaulic Standard Flanged
Connection
Return
Connection
Return
1- Pass
2- Pass
3- Pass
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 18
Evaporator- Standard Heads
150 PSI Standard Heads- 1 Pass
Ref. # Description Part Number Qty.
351 Assembly, Connection Head
26” Flanged Connection 331155301 2
26” Victaulic Connection 331153701 2
355 Gasket 070304606 2
NS Screw, H5, 0.75 x 3.0 735033878 40 per head
NS Nut, 0.75-10 735029626 40 per head
NS = Not Shown
150 PSI Standard Heads- 2 Pass
Ref. # Description Part Number Qty.
350 Assembly, Return Head 332183302 1
351 Assembly, Connection Head
26” Flanged Connection 332184903 1
26” Victaulic Connection 332183303 1
352 Gasket, Connection Head 071557806 1
355 Gasket, Return Head 070304606 1
NS Screw, H5, 0.75 x 3.0 735033878 40 per head
NS Nut, 0.75-10 735029626 40 per head
NS = Not Shown
150 PSI Standard Heads- 3 Pass
Ref. # Description Part Number Qty.
351 Assembly, Connection Head
26” Flanged Connection 331155304 2
26” Victaulic Connection 331153704 2
352 Gasket, Connection Head 071557806 2
NS Screw- H5, 0.75 x 3.0 735033878 40 per head
NS Nut- 0.75-10 735029626 40 per head
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 19
Evaporator- Water Box Heads
Water
Box
Cover
Gasket
Conn. End Gasket
366
351
Head
2 & 3- Pass
Conn. End Gasket
1- Pass
Ref. # Description Part Number Qty.
110 Sight Glass Clear w/Ball 350229501 1
330 Shut-Off Valve 735039929 2
331 Cap, Flare 073243901 2
330
Connection
End
352
355
330
331
331
110
2-Pass, Left-Hand, Water Box Victaulic (Front View)
Return
End
Return End Gasket
352
3- Pass
Return End Gasket
355
1 & 2- Pass
Head
350
2- Pass
Head
351
1 & 3- Pass
366
Water Box
Cover Gasket
1 & 3- Pass
(not shown)
Code 10: 1 L A
# Passes Connection Heads
1=1 Pass L= Left Hand A= Std. Victaulic
2=2 Pass R= Right Hand B= Std. Flanged
3=3 Pass C= Wtr. Bx. Vict.
D= Wtr. Bx. Flgd.
Head Types
Water Box Victaulic Water Box Flanged
Connection
Return
Connection
Return
1- Pass
2- Pass
3- Pass
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 20
Evaporator- Water Box Heads
150 PSI Water Box Heads- 1 Pass
Ref. # Description Part Number Quantity
351 Assembly, Connection Head
30” Flanged Connection 331155351 2
30” Victaulic Connection 331153751 2
355 Gasket, Return Head 070304606 2
366 Gasket, Water Box Cover 074521621 2
NS Screw, H5, 0.75 x 4.5 735033969 80 per head
NS Nut, 0.75-10 735029626 80 per head
NS = Not Shown
150 PSI Water Box Heads- 2 Pass
Ref. # Description Part Number Qty.
350 Assembly, Return Head 332183302 1
351 Assembly, Connection Head
30” Flanged Connection 331155353 1
30” Victaulic Connection 331153753 1
352 Gasket, Connection Head 350296771 1
355 Gasket, Return Head 070304621 1
366 Gasket Water Box Cover 074521621 1
NS Screw, H5, 0.75 x 3.0, for Return Head 735033878 40 per head
NS Screw, H5, 0.75 x 4.5, for Water Box Head 735033969 80 per head
NS Nut, 0.75-10, for Return Head 735029626 40 per head
NS Nut, 0.75-10, for Water Box Head 735029626 80 per head
NS = Not Shown
150 PSI Water Box Heads- 3 Pass
Ref. # Description Part Number Qty.
351 Assembly, Connection Head
30” Flanged Connection 331155354 2
30” Victaulic Connection 331153754 2
352 Gasket, Connection Head 350296771 2
366 Gasket Water Box Cover 074521621 2
NS Screw, H5, 0.75 x 4.5 735033969 80 per head
NS Nut, 0.75-10 735029626 80 per head
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 21
Insulation
Single Layer Insulation (Code 32 = H *)
Description Part Number Quantity
Evaporator Insulation, .75 047662050 115 square ft per unit
Coupling, Sightglass & Dataplate Insulation, .125 332557650 7 square ft per unit
Evaporator Head Insulation, .75 047662050 7 square ft per head
Suction Insulation, .75 047662050 7 square ft per suction line
Expansion Valve Insulation, .75 047662050 2 square ft per unit
Cover, Rear Compressor Bell 331557691 1 per compressor
Double Layer Insulation (Code 32 = 3 *)
Description Part Number Quantity
Evaporator Insulation, .75 047662050 230 square ft per unit
Coupling, Sightglass & Dataplate Insulation, .125 332557650 7 square ft per unit
Evaporator Head Insulation, .75 047662050 13 square ft per head
Suction Insulation, .75 047662050 13 square ft per suction line
Expansion Valve Insulation, .75 047662050 2 square ft per unit
Cover, Rear Compressor Bell 331557691 1 per compressor
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 22
G050
G051
Unit Controls
Single Point Connection Box
DS1 or PD1
Ref. # Description Part Number Qty.
G050 Support Arm, Beige (w/swivel pin, washers, nuts) 330815401 1
G050 Support Arm, Black (w/swivel pin, washers, nuts) 330815411 1
(includes swivel pin, washers, & nut)
G051 Operator Interface Panel w/cords, 12” Beige 330277501 1
G051 Operator Interface Panel w/cords, 15” Beige 330276501 1
G051 Operator Interface Panel w/cords, 15” Black 330276502 1
Cable, Power, Operator Interface 300040768 1
Cable, Serial, Operator Interface 300043345 1
Cable Kit (includes Power, Serial & VGA cords) 300043289 1
Single Point Connection Box
DS1 400A Molded Case Circuit Breaker Assy, Std. SCCR 300044186 1
400A Circuit Breaker, Std. SCCR 300042106 1
Lug 300042258 6
Operating Shaft 300042115 1
Operating Mechanism 300042118 1
Handle 300040313 1
DS1 400A Molded Case Circuit Breaker Assy, High SCCR 300046378 1
400A Circuit Breaker, High SCCR 300046310 1
Lug 300042258 6
Operating Shaft 300042115 1
Operating Mechanism 300042118 1
Handle 300040313 1
PD1 Power Block, 760A 300047431 1
Unit Control Box
Circuit #1
Power Panel
Circuit #2
Power Panel
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 23
Unit Control Box
400
Ref. # Description Part Number Qty.
400 LonMark Serial Interface 350147401 1
400 ModBus RS485 Serial Network Board 350147402 1
400 BACnet RS232 Serial Gateway / Modem Board 330343102 1
400 BACnet with IP Ethernet 350147406 1
401 BACnet MS/TP (RS485) Interface Board 350147407 1
401
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 24
Unit Control Box
112
107
115
104
106
105
103
100
102
101
101
Ref. # Schem. Description Part Number Qty.
100 UC Unit Controller, Large MTII 330268311 1
101 Circuit Controller, Small MTII 330268111 2
102 Serial Network Board 350147402 1
103 EXV EXV Driver Board 330277803 1
104 SW1,12 Rocker Switch, Compressor 300042181 2
105 SW5 Rocker Switch, Emergency Shut-down 300042962 1
106 SW22 Rocker Switch, Unit 300042181 1
107 PC OITS Circuit Board Assy 330276603 1
Power Supply for Circuit Board - OITS 330277353 1
Power Supply for ATX 333355201 1
Memory Module 330276693 1
112 CB1 Circuit Breaker, 10A, 250V 300042182 1
115 MOD 1, MOD2 PCB Assy 300042958 2
NS UCM Comm Module Card 330275202 1
NS S05 Sensor- 30 ft. 073007303 1
NS S02, S03, S04 Sensor- 30 ft. 073007203 3
NS CS01, CS02 Sensor- 30 ft. 073007203 2
NS IR2, IR3, IR4 Relay, 2PDT, 10A, 24V 300043648 3
NS CA1, CA2 Capacitor 300040510 2
NS Resistor, 120 Ohm 300047219 1
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 25
Power Panel
206
204
205
Circuit #1
207
200
201
203
206
204
205
207
200
201
203
Circuit #2
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 26
Power Panel
Qty.
Ref. # Schem. Description Part Number per panel
200 CB11, 21 Compressor Circuit Breaker, Std. SCCR
Trip, 250A, Circuit Breaker 300042208 1
Frame, Circuit Breaker 300042120 1
Operator, Circuit Breaker 300042117 1
Handle, Circuit Breaker, Rotary 300043800 1
Shaft, Circuit Breaker 300042808 1
Lug, Circuit Breaker 300040792 3
Bus Tab, Circuit Breaker 300042939 3
Bracket, Circuit Breaker 300043776 1
200 CB11, 21 Compressor Circuit Breaker, High SCCR
Circuit Breaker 300046301 1
Operator, Circuit Breaker 300042117 1
Handle, Circuit Breaker, Rotary 300043800 1
Shaft, Circuit Breaker 300042808 1
Lug, Circuit Breaker 300040792 3
Bus Tab, Circuit Breaker 300042939 3
Bracket, Circuit Breaker 300043776 1
201 CT1, CT2 Current Transformer 300047228 1
203 LR11, 21 Line Reactor 300047227 1
204 T11,21 Fuse Puller/Cover 300043152 1
205 T11, 21 Transformer Kit, 750VA, 480V:120V 300042952 1
includes: Transformer, 750A 300047231 1
Fuse Block 300043153 1
Fuse, 8A 300047232 1
Fuse, 4A 300046330 1
206 T12-14,T22-24 Transformer, 120V - 24V 300042178 3
207 GND11, GND21 Ground Lug Kit 300046359 1
NS CT11,CT21 Transformer, 0-5V Circuit Monitor 300042945 1
NS FU11-13, 21-23 Fuse Block 300047222 3
NS FU11-13,21-23 Fuse, 250A, 600V 300047224 3
NS EMI EMI Filter (option) 300047437 1
NS GFP Ground Fault Current Transformer (option) 300043558 1
NS GFP Ground Fault Relay (option) 330315101 1
NS = Not Shown
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 27
Unit Controls
Control Box Label
For all other control components, please contact McQuay Parts with the Control Box Serial Number and Control Box Part Number. These numbers are located on the Control box rating label
(see example below). This label is found inside the panel.
Control Box Serial Number
“S” + Year + ##### + detail#
Control Box Part Number
Magnetic Bearing Centrif. Chiller; WMC 400DSC, Vintage A Rev. B 10/2011 RPL 700014700 / Page 28
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