Honeywell RTH6400 Operating Manual page 15

Program schedule override (permanent)
Press to permanently adjust temperature.
Inside
69
6 : 30
Run Schedule Fan
Auto
Press to cancel "Hold" setting and
resume program schedule.
Note: Make sure the thermostat is set
to the system you want to control (heat
or cool).
Heat
Setting
Hold
75
AM
System
Heat
RTH6400 Programmable Thermostat
Press HOLD to permanently adjust
the temperature. This will override
the temperature settings for all time
periods.
The "Hold" feature turns off the
program schedule and allows you
to adjust the thermostat manually,
as needed.
Whatever temperature you set will
M28411
be maintained 24 hours a day until
you manually change it, or press
RUN SCHEDULE to cancel "Hold" and
resume the programmed schedule.
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