Demand Cooling Wiring Schematics; Printed In The U.s.a - Emerson AE4-1287 R7 Manual

NOTE: Compressors with
internal overload protection
MUST have some means,
such as a current sensing
relay, to deenergize the
Demand Cooling Module
and the Sentronic when the
compressor is not running!
Demand Cooling Wiring Schematic with Sentronic Oil Pressure Control and Current Sensing Relay
NOTE: The control circuit
must be arranged so that the
Demand Cooling Module
and the Sentronic are
deenergized when the
compressor is not running!
Demand Cooling Wiring Schematic less Sentronic Oil Pressure Control
© 2012 Emerson Climate Technologies, Inc.

Printed in the U.S.A.

Application Engineering
B U L
240vac
L1
L2
L3
Control
Temp.
Sensor
Electronic
Switch
240vac
L1
L2
L3
Controls
Temp.
Sensor
L E T
Current
Compressor
Sensing (CS)
Contactor (CC)
Relay
Sentronic
240
Demand
Cooling
Module
L
M
L
A
S
Injection
Solenoid
L1 L2
Figure 5A
Current
Compressor
Sensing (CS)
Contactor (CC)
Relay
Demand
Cooling
Module
M
L
A
S
Electronic
Switch
L1 L2
Figure 5B
10
I N
AE4-1287 R7
Compressor
Motor
2
M
CC
A
CS
Compressor
Motor
CC
Injection
Solenoid
CS