Trane 7CONT624AS42DA User's Manual And Installation Instructions page 14

Heat/Cool Wiring Diagrams
Heat/Cool Diagram 5: 1 Stage Cooling w/"GAF2-S" Model Air Handler
Heat/Cool Diagram 6: 1 stage cooling w/"GAF2-36M" Model Air Handler
One Stage
Cooling Only
Notes:
1. "YI" and "YO" connections must be made as shown for freeze
protection and internally mounted condensate overflow circuits to
work properly
2. If third party condenstate overflow switched are installed, they
should be wired between "Y1" of the thermostat and "YI" of the
airflow control board
14
One Stage Non-VS
Cooling Only Air Handler &
Electric Heat
B
B/C
R
W1
G
Y
Non-VS
Air Handler &
Electric Heat
B B/C
R
W1
O
G
YI (In)
(Note 1)
Y YO
Installer's Guide
Thermostat Connection
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
C
R
W1
W2
O/B
G
Y1
(Note 2)
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.
BK
C
RS
R Remote
Sensor
RS
W1
W2 ODT
Outdoor
Sensor
ODT
O/B
NO
G
C
Aux relay
Y1
outputs
NC
Y2
BK
RS
Remote
Sensor
RS
ODT
Outdoor
Sensor
ODT
NO
C
Aux relay
outputs
NC