TYPICAL SYSTEM WIRING DIAGRAMS
3 HEAT / 2 COOL (HEAT PUMP)
OPTIONAL
REMOTE SENSOR
TERMINALS
W2
S2
S1
SC
O/B
OUTDOOR
INDOOR
SENSOR
SENSOR
REV
VALVE
Switch Settings
Switch 1 = ON
Switch 2 = OFF/ON
Switch 3 = OFF
Switch 4 = OFF
Y1
Y2
G
W1
AUX
COMP 2
RELAY
RELAY
COMP 1
COOL 1
FAN 1
RELAY
RELAY
RELAY
Heat Pump
OFF = 'O' ON = 'B'
Short Cycle Protection (Recommended)
Leave OFF
18
R
C
THERMOSTAT
EQUIPMENT
24 V
LINE