ICM Controls SC 2000 - Page 14

12
Cool OnlyHeat Pump
T
H
E
R
M
O
S
T
A
T
RH
RC
W
Y
B
O
G
Pre-Installed
Jumper
T
H
E
R
M
O
S
T
A
T
RH
RC
W
Y
B
O
G
Pre-Installed
Jumper
Remove
Pre-Installed
Jumper
T
H
E
R
M
O
S
T
A
T
RH
RC
W
Y
B
O
G
HOT
120 VAC 24 VAC
Transformer Transformer
HOT
120 VAC 24 VAC
Transformer
HOT
120 VAC 24 VAC
Compressor
Contactor
Fan
Relay
Reversing
Valve
Compressor
Contactor
Fan
Relay
Reversing
Valve
Cooling
Control
Fan
Control
Cool Active
Reversing Valve
Heat Active
Reversing Valve
3-Wire,
Single Transformer
Note: Place jumper between “W” and “Y” terminals. Note: Millivolt system may require a
transformer and/or an isolation
relay to operate properly