Trane 7CONT624AS42DA User's Manual And Installation Instructions page 17

Heat/Cool Wiring Diagrams
Heat/Cool Diagram 11: 1 Stage Cooling w/non-Variable Speed Gas Furnace
One Stage
Cooling Only
B
Y
Heat/Cool Diagram 12: 1 or 2 Stage Cooling w/Variable Speed Gas Furnace
One or Two stage
Cooling Only
B
R
Y 1
Y2
Notes:
1. Cut/remove the factory installed "BK" jumper at the indoor unit
2. "Y2" & "R" connections at outdoor are only required for two
stage units
3. For non-Trane/American Standard Indoor units "BK" is not
connected and "Y1"/"Y2" must be connected at indoor unit.
Installer's Guide
One or Two Stage
Gas Furnace
B/C
R
W1
W2
G
Y
Two Stage VS
Gas Furnace
B/C
R
(Note 2)
W1
W2
G
Y1
(Note 3)
(Note 2)
Y2
BK
(Note 1)
Thermostat Connection
BK
C
RS
R
RS
W1
W2
ODT
ODT
O/B
NO
G
C
Y1
NC
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.
Thermostat Connection
BK
C
RS
R
RS
W1
W2
ODT
ODT
O/B
NO
G
C
Y1
NC
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.
Remote
Sensor
Outdoor
Sensor
Aux relay
outputs
Remote
Sensor
Outdoor
Sensor
Aux relay
outputs
17