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Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage, personal injury or death.
System Composite Diagram—WVAHM/WAHMS 18 to 60—10kW and Below
C
BU W OR
NOTES:
1. Outdoor Thermostat 1 should be the first to close and the last
to open.
2. Connect the white and brown wires from the air handler if an
outdoor thermostat is not used.
System Composite Diagram—WVAHM/WAHMS 18 to 60—Above 10kW
BU
See Note 1
See NOTES on the following page
Goodman 6 Long
Heat Pump
R
W2 O
Y
Y
Y
R
R
Y
OR
W
BU
#18 Gauge - 5 Wire
Outdoor Thermostat (Optional) Closed on Temperature Fall
#18 Gauge - 6 Wire Needed When Outdoor Thermostat Is Used
Heat Pump
C W2 O
Y
R
W OR
Y
R
R
Y
OR
W
BU
#18 Gauge - 5 Wire
Outdoor Thermostat - 1
Outdoor Thermostat - 2
WARNING
HIGH VOLTAGE!
Conventional
Room Thermostat
W2 G
O
R
E
C
BR
G
See
Note 3
W
BU
3. Remove this wire when using an outdoor thermostat.
4. EHR—Emergency heat relay (optional)
Conventional
Room Thermostat
W2
Y
O
C
G
R
E
R
G
See
See
Note 3
Note 2
W
1
2
EHR
3
4
BU
#18 Gauge - 7 Wire
Unit
Red
R
Green
White
Blue
#18 Gauge - 7 Wire
Unit
Red
Green
White
Brown
Blue
13
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