Honeywell ST9100S User Manual

The purpose of the Timer is to control the times when the heating can be switched on.
Normal Use:
Lift the flap to make sure the Slider is in the RUN position.
Also make sure the heating is operating in AUTO or ONCE mode, by
pressing the MODE button repeatedly until the display shows AUTO or
ONCE.
AUTO means on and off twice each day, following the programme.
ONCE means coming on at the first programme time then off at the last
programme time.
To turn the heating OFF:
Keep pressing the MODE button until the display shows OFF. If the
heating was on, the light will turn off.
To turn the heating ON:
Keep pressing the MODE button until the display shows CONT (this is
short for continuous). The light will turn on.
The heating will not turn off in this position.
Temporary Overrides to the Set Programme:
To turn the heating ON press the OVERRIDE button – the light will turn
ON, unless heating is operating in the OFF mode.
To turn the heating OFF press the OVERRIDE button again – the light will
turn OFF.
This button will only work in the AUTO or ONCE modes. It will NOT work
in the OFF or CONT modes.
At the next SET time the Timer will go back to automatic operation.
For a temporary boost of heating, press the EXTRA HOUR button.
Pressing once brings the heating ON for 1 hour.
Press twice for 2 hours extra, three times for 3 hours extra.
Pressing again will turn the heating OFF.
This button works in the AUTO, ONCE, and OFF modes. It will NOT work
in the CONT mode.
If the heating is already ON, pressing the EXTRA HOUR button will add
the hours to the end of the current ON period.
For guidance on the operation of the other buttons please refer to the complete user instructions supplied with the
product.
GUIDE TO THE USE OF THE ST9100S TIMER:
Copyright©Honeywell
OK
PROGRAMME
NEXT
ST9100S
MODE Button
OVERRIDE Button
EXTRA HOUR Button
EXTRA HOUR
OVERRIDE
DAY/TIME
RUN
Slider
EXTRA HOUR
OVERRIDE
EXTRA HOUR
OVERRIDE