Honeywell T8131A Owner's Manual page 16

This guide can be used for programming your new thermostat.
NOTE: Batteries are required for operation and programming. When inserting batteries, set the
system switch to OFF. Remove the battery door (on the thermostat left side) using a coin
at the bottom. Follow the instructions on pages 9 and 10.
Set Current Time/Day
To set the time, press and release
Set
and release
Clock/Day
Heating Program
With system switch at HEAT, press and release
the display.
Set
Clock/Day
Time
Ahead
again, until current day shows; then press
Back
Time
Ahead
once, until current time shows; to set day, press
Back
Set
once. WAKE, MON-FRI and SET appear on
Schedule
16
Run
.
Program
69-0887—1