Honeywell RTH4300B Manuel D'utilisation page 14

Operating Manual
Program schedule override (permanent) About your new thermostat
Press to permanently adjust temperature.
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).
Hold
Set To
70
6 : 30
AM
Set To
75
6 : 30
AM
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 be
maintained 24 hours a day, until you
manually change it, or press RUN to
cancel "Hold" and resume the program
schedule.