Whirlpool GOLD W4GH6 Installation Instructions Manual page 10

4. Connect ground wire to ground lug.
A
B
A. Ground lug
B. Field supply ground wire
C. 208/230 volt field supply wires
10
T2 T1
L2 L1
L2 L1
C
5. Connect low voltage circuit.
Typical Wiring Connection (low voltage circuit)
NOTE: Some connections may not apply.
Refer to specific thermostat and indoor unit.
Without Auxiliary Heat
Thermostat Indoor Unit
Power
A
R
C
1st Stage
W1
Aux. Heat
Indoor Blower
G
Reversing Valve
O
Y1
Compressor
Y2
With Auxiliary Heat
Indoor Unit
Thermostat
A
Power
R
C
Emergency Heat
E
1st Stage
W1
Aux. Heat
Indoor Blower
G
Reversing Valve
O
Y1
Compressor
Y2
A. Do not connect C (common) connection between indoor unit and
thermostat except when required by the indoor thermostat. Refer
to the thermostat installation instructions.
B. C (common) connection between indoor unit and outdoor unit
required for proper operation.
6. Replace control box cover.
7. Reconnect power.
Outdoor Unit
Power
R R
Common
C C
1st Stage
W1
W1
Aux. Heat
W2
W3
If Applicable
G
O
Y1
Y1
Y2
Y2
Outdoor Unit
Power
R R
Common
C C
Emergency
Heat Relay
Outdoor
Thermostat
W1 W1
1st Stage Aux. Heat
W2
W3
If Applicable
G
O
Y1
Y1
Y2
Y2
B
B