Trane NEXIA XR724 User's Manual And Installation Instructions page 32

Heat Pump Wiring Diagrams
Heat Pump Diagram 9: 1 or 2 Stage Heat Pump w/TEM8, TEM6 Variable Speed Air Handler
One or Two stage
Heat Pump
B
R
X2
O
Y1
Y2
Notes:
1. Cut/remove the factory installed "BK" jumper at the indoor unit
2. Jumper "W2" to "W3" if three stages of indoor heat
are available
3. For non-Trane/American Standard indoor units "BK" is not
connected and the "Y1"/"Y2" must be connected at indoor unit
Heat Pump Diagram 10: 1 Stage Heat Pump w/non-Variable Speed Air Handler
(Excludes Hyperion/Forefront/TEM3 Air Handlers)
Single Stage
Heat Pump
B
R
X2
O
Y
Notes:
1. Jumper "W2" to "W3" if three stages of indoor heat
are available.
32
XR724 INSTALLER'S GUIDE
Variable Speed Air
Handler & Electric Heat
B/C
R
W1
W2
W3
(Note 2)
O
G
Y1
(Note 3)
Y2
BK
(Note 1)
Air Handler &
Electric Heat
B/C
R
W1
W2
W3
(Note 1)
O
G
Y1
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
18-HD82D1-1B-EN