Honeywell CHRONOTHERM IV T8665A User Manual page 40

3. Press and hold Leave, Return or Sleep key until the start
time and temperature setting are cleared (approximately
three seconds).
NOTE: Wake cannot be cleared.
You do not have to program a replacement time for the remaining periods; for example, Wake and
Sleep. If you clear only the Leave and Return periods for Saturday (or any day), the thermostat
remains in the Wake period for all of Saturday until the Sleep period.
4. Repeat steps, as necessary, for all the periods to be cleared.
5. Press Run Program key to return to normal operation.
Leave Return Sleep
Set Program
Leave
Press and hold Leave, Return or Sleep key to
clear the period for that day. Example display
shows Saturday Leave period cleared.
Run
Program
40
Setting
Sat
Heat
M14599
69-1536–3