Trane 7CONT624AS42DA User's Manual And Installation Instructions page 21

Heat Pump Wiring Diagrams
Heat Pump Diagram 3: 1 Stage Heat Pump w/"GAM5B" Model Air Handler
Notes:
1. Jumper "W2" to "W3" if three stages of indoor heat is available
2. "Y" terminal must be connected at indoor unit for high stage air
flow
Heat Pump Diagram 4: 2 Step Heat Pump w/"GAM5B" Model Air Handler
Two step
Heat Pump
Notes:
1. Jumper "W2" to "W3" if three stages of indoor heat is available
2. "Y2" terminal must be connected at indoor unit for high stage air
flow
One stage Non-VS Air
Heat Pump Handler & Electric Heat
B B/C
R
R
W1
W2
X2
W3
(Note 1)
O O
G
Y Y
(Note 2)
Non-VS Air
Handler & Electric Heat
B
B/C
R
R
W1
X2 W2
W3
(Note 1)
O O
G
Y1 Y I
Y2 Y 2
(Note 2)
Installer's Guide
Thermostat Connection
O/B
Remote Tempurature Sensor Connections and Operation:
Sensor Options in the Installer Settings/Sensor Settings menu
Remote Sensor (connect to the RS terminals)
- None
- Replaces internal sensor
- Average with internal sensor
Outdoor Temp Sensor (connect to the ODT terminals)
- None
- Outdoor
Caution: Do not run sensor wires in the same bundle with HVAC
wires. Keep away from high voltage wiring to avoid interference.
Thermostat Connection
C
R
W1
W2
O/B
G
Y1
Y2
Remote Tempurature Sensor Connections and Operation:
Sensor Options in the Installer Settings/Sensor Settings menu
Remote Sensor (connect to the RS terminals)
- None
- Replaces internal sensor
- Average with internal sensor
Outdoor Temp Sensor (connect to the ODT terminals)
- None
- Outdoor
Caution: Do not run sensor wires in the same bundle with HVAC
wires. Keep away from high voltage wiring to avoid interference.
BK
C
RS
R
Remote
Sensor
RS
W1
W2 ODT
Outdoor
Sensor
ODT
NO
G
C
Aux relay
Y1
outputs
NC
Y2
BK
RS
Remote
Sensor
RS
ODT
Outdoor
Sensor
ODT
NO
C
Aux relay
outputs
NC
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