McQuay WSC 100 User Manual

14 IM 1128-2
Figure 9, Electrical and Sensors, Compressor Control Box and Connections
Note:
1. Reference compressor controller schematic for detailed wiring connections.
R331311501C0100
N7
N7
155
155
155
154
GUARDISTOR
CONNECT LEAD 155
TO TERMINAL IF 2nd
BOX IS NOT USED.
2nd TERMINAL BOX
USED ON SELECTED
MOTORS.
HIGH
PRESSURE
SWITCH
E9
E7
NUMBER OF HEATERS MAY VARY
DUE TO COMPRESSOR SIZE.
JUNCTION BOX NOT ON ALL UNITS.
SECOND HEATER CABLE FROM COMPR.
ON WSC063-087 ONLY.
}
3
2
1
E4
E6
05
0708
E5
OIL PUMP
HEATERS
{TO STARTER
COMPRESSOR
HEATERS
CS04
CS05
CS07 CS09
CS10
CS06
CS03
CS02
CS01
HOT GAS
SOLENOID
LIQ. INJ.
SOLENOID
OPTION
135
136
133
134
141
142
139
140
132
131
137
138
OIL COOLER
SOLENOID
VANE CONTROL
SOLENOIDS
VANE
CLOSE
SWITCH
146
145
VANE
OPEN
SWITCH
103
104
VFD SPEED
SIGNAL
102
101
(ON VFD ONLY)
LI
HG
VO
VC
SA
SB
OC
VFD
LEAVING EVAP WATER TEMP.
OIL FEED TEMP.
COMPR. DISCHARGE TEMP.
COMPR. SUCTION TEMP.
OIL SUMP TEMP.
COND. PRESS. SENSOR EVAP. PRESS. SENSOR
OIL FEED PRESS. SENSOR OIL SUMP PRESS. SENSOR
VANE
LOAD
VANE
UNLOAD
JUNCTION BOX ON COMPRESSOR
MOUNTING BRACKET NEAR THE
SUCTION PIPE.
OPH
G2
G1
CP1
CP2
HPS
COMPRESSOR CONTROL BOX
CCB POWER
10 LEADS 4 LEADS
(ON COMPRESSOR)
(ON VFD)
(ON SUPPLY
WATER LINE)
(ON COMPR.
FRONT)
(ON COMPR. NEXT
TO DISCHARGE)
(ON COMPR.
FRONT)
(ON HOT
GAS LINE)
(ON LIQUID
INJ. LINE)
(ON DISCHARGE
NOZZLE)

McQuay WSC 100 Specifications

General

Brand	McQuay
Model	WSC 100
Category	Chiller
Language	English