Trane NEXIA XR724 User's Manual And Installation Instructions page 27

Heat/Cool Wiring Diagrams
Heat/Cool Diagram 15: Package Single or Multi-Stage Gas/Electric with Variable Speed Blower
Package Unit
B/C
W1
W2
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
Heat/Cool Diagram 16: Package Single Stage Gas/Electric with non-Variable Speed Blower
Package Unit
B/C
R
W
G
Y
18-HD82D1-1B-EN
XR724 INSTALLER'S GUIDE
R
O
G
Y1
Y2
BK
(Note 1)
(Note 2)
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.
Thermostat Connection
BK
C
RS
R
RS
W1
W2
ODT
ODT
O/B
NO
G
C
Y1
NC
Y2
Remote
Sensor
Outdoor
Sensor
Aux relay
outputs
Remote
Sensor
Outdoor
Sensor
Aux relay
outputs
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