Carrier Touch-n-go TC-PAC Owner's Manual page 21

PROGRAMMING THE THERMOSTAT
The thermostat has preset periods (see below), but you can change these to fit your
lifestyle.
P1 6:00 AM to 8:00 AM
P2 8:00 AM to 5:00 PM
P3 5:00 PM to 10:00 PM
P4 10:00 PM to 6:00 AM
What time blocks work for you'? Write them in here and refer to this as you
make the changes on the thermostat.
P4