User's Manual

3-wire Cool Only
3-wire Heat Only
THERMOSTAT
W RHRC
Heat Relay
or Valve
Heat
24V Supply
Fan
Relay
THERMOSTAT
G W Y RHRC
Cool
Contactor
Fan
Relay
Cool
24V Supply
G Y
O/B
O/B
38
WIRING DIAGRAMS
X - No Connection
X
X
X
X X X
Jumper