Trane 7CONT624AS42DA User's Manual And Installation Instructions page 16

Heat/Cool Wiring Diagrams
Heat/Cool Diagram 9: 1 or 2 Stage Cooling w/non-TAM7 Model Variable Speed Air Handler
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. Jumper "W2" to "W3" if three stages of indoor heat is available
4. For non-Trane/American Standard Indoor units "BK" is not
connected and "Y1"/"Y2" must be connected at indoor unit.
Heat/Cool Diagram 10: 1 Stage Cooling w/non-variable Speed Air Handler
(Excludes Hyperion/Forefront/TEM3 Air Handlers)
One Stage
Cooling Only
B
Y
Notes:
1. Jumper "W2" to "W3" if three stages of indoor heat is available
16
Installer's Guide
VS Air Handler &
Electric Heat
B/C
R
(Note 2)
W1
W2
W3
(Note 3)
G
Y1
(Note 4)
(Note 2)
Y 2
BK
(Note 1)
Non-VS
Air Handler &
Electric Heat
B/C
R
W1
W2
W3
(Note 1)
G
Y
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