Trane NEXIA XR724 User's Manual And Installation Instructions page 29

Heat Pump Wiring Diagrams
Heat Pump Diagram 3: 1 Stage Heat Pump w/GAM5B Model Air Handler
One stage
Heat Pump
B
R
X2
O
Y
Notes:
1. Jumper "W2" to "W3" if three stages of indoor heat
are available
2. "Y" terminal must be connected at indoor unit for
cooling airflow
Heat Pump Diagram 4: 2 Stage Heat Pump w/GAM5B Model Air Handler
Two stage
Heat Pump
B
R
X2
O
Y1
Y2
Notes:
1. Jumper "W2" to "W3" if three stages of indoor
2. "Y2" terminal must be connected at indoor unit
18-HD82D1-1B-EN
XR724 INSTALLER'S GUIDE
Non-VS Air
Handler & Electric Heat
B/C
R
W1
W2
W3
(Note 1)
O
G
Y
(Note 2)
Non-VS Air
Handler & Electric Heat
B/C
R
W1
W 2
W3
(Note 1)
O
G
Y I
Y 2
(Note 2)
heat are available
for cooling airflow
Thermostat Connection
BK
C
RS
R
RS
W1
W2
ODT
ODT
O/B
NO
G
C
Y1
NC
Y2
Remote Temperature 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
BK
C
RS
R
RS
W1
W2 ODT
ODT
O/B
NO
G
C
Y1
NC
Y2
Remote Temperature 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.
Remote
Sensor
Outdoor
Sensor
Aux relay
outputs
Remote
Sensor
Outdoor
Sensor
Aux relay
outputs
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