Robertshaw RS9210 Installation Manual page 13

1
Power supply.
2
Use either O or B terminals for reversing valve.
3
Optional 24 VAC common connection when thermostat is used in battery power mode.
4
Jumper (not supplied).
2H/1C Heat Pump System
COMPRESSOR
RELAY
COOL REVERSING
FAN RELAY
HEAT REVERSING
AUXILIARY
Note: In many systems
with no emergency heat
L2
relay a jumper can be
used between E and W2.
L1
(HOT)
VALVE
VALVE
WIRING
11