Carrier XCT7 40VCW317FQEE Installation And Owner's Manual page 27

Wired Controller Wiring Instruction
4. Connect communication wire to CON4 port of wired controller.
5. Lastly put the front cover of wired controller to back cover to complete the installation
Note:
The battery is non-removable and recharges while the unit is connected to power in order to save user settings if there is a power
outage.
25