Modifying The Heating Programme; Exiting Heating Programming Mode; Disabling/Enabling Time Periods - Honeywell ST9400A User Manual

Modifying the Heating Programme

The heating programme has two pairs of ON/OFF switching times per day. Each
time can be set between 3.00 am and 2.50 am (on the next day) to allow you to
programme the heating to stay on past midnight, if required.
a. Move the slide switch to the HEATING position. 'SET HEATING' will show briefly
to verify this action.
DAY/TIME
HOT WATER
HEATING
RUN
b. Now follow the same procedure to set the times as described in 'Modifying the
Hot Water Programme' (page 7) steps b. to e.

Exiting HEATING Programming Mode:

To exit HEATING programming mode, move the slider to the RUN position. This can
be done at any time during the programming process, and any changes made and
confirmed with the
Note: If the unit is left in HEATING Programming mode for more than 10 minutes without
the slider being moved or any buttons pressed, the message 'MOVE SLIDER' will be
displayed. Press a button to finish programming, or move the slider to the RUN position.
Disabling / Enabling Time Periods
To disable any of the time periods ON 1 to OFF 1 or ON 2 to OFF 2, simply set the
ON time and its paired OFF time to the same time, and the programme will just
ignore them.
To re-enable the time period, simply set the two ON and OFF times to be different.
button will have been saved.
PROGRAMMING YOUR ST900A
HOT WATER
(for Heating and/or Hot Water)
HEATING
9