Honeywell RTH2300 Manuel D'utilisation page 15

Programmable Thermostat RTH2300
Permanent override of schedule
To permanently ignore the schedule, press the Up or
Down button until the desired temperature is displayed.
Then, press the Hold button to maintain the new
temperature indefinitely. The word Hold will appear on
the screen.
Press the Run button if you wish to cancel the override
and resume the schedule. The word Hold will disappear
and the thermostat will be set to the temperature
programmed for the current period.
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