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.
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
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
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
# Passes Connection Heads Future Use1=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 VictaulicWater 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)
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 VictaulicWater 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
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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