Heat / 2 Cool (Fossil Fuel); Typical System Wiring Diagrams - Robertshaw Smart Sense SMART 1000 Installation Manual

TYPICAL SYSTEM WIRING DIAGRAMS

3 HEAT / 2 COOL (FOSSIL FUEL)

OPTIONAL
REMOTE SENSOR
TERMINALS
S2 S1 AUX
SC
OUTDOOR INDOOR
SENSOR SENSOR
Switch Settings
Switch 1 = ON
Switch 2 = OFF/ON
Switch 3 = ON
Switch 4 = ON
W2
Y1 Y2
AUX
O/B
REV
COMP 2
VALVE
RELAY
COMP 1
RELAY
Heat Pump
OFF = 'O' ON = 'B' Reversing Valve
3 heat / 1 cool fossil fuel
Locks out heat pump when furnace is energized
20
W1 G R C
THERMOSTAT
EQUIPMENT
AUX
RELAY
FAN
RELAY
24 V
LINE