Trane NEXIA XR724 User's Manual And Installation Instructions page 36

Dual Fuel Wiring Diagrams
Dual Fuel Diagram 5: Package Single or Multi-Stage Dual Fuel with Variable Speed Blower
Package Unit
B/C
R
W1
W2
/X2
O
G
Y1
Y2
BK
Notes:
1. Cut/remove the factory installed "BK" jumper on the
ECM fan control board
2. For non-Trane/American Standard Indoor units "BK"
is not connected
3. Outdoor Sensor required for dual fuel restricted
mode.
Dual Fuel Diagram 6: Package Single Stage Dual Fuel with Non-Variable Speed Blower
Package Unit
B/C
R
W1
W2
/X2
O
G
Y
Notes:
1. Outdoor Sensor required for dual fuel restricted
mode.
36
XR724 INSTALLER'S GUIDE
(Note 1)
(Note 2)
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
(Note 3)
Aux relay
outputs
Remote
Sensor
Outdoor
Sensor
(Note 1)
Aux relay
outputs
18-HD82D1-1B-EN