Getting Started With Your St9420C; Step 1: Setting The Date & Time - Honeywell Y9420H Sundial RF2 Pack 2 User Manual

GETTING STARTED WITH YOUR ST9420C

Your ST9420C should have been set up to work correctly when it was installed.
However, the following will show you how you can modify your settings to meet
your particular lifestyle.
To assist you with programming and everyday use your ST9420C will display text
messages at every stage to help you get the most out of your central heating and hot
water system. The ST9420C uses LoT™ Technology to constantly update the display
to give you feedback about what is required.
Step 1: Setting the Date & Time
Your ST9420C had the date and time set at the factory, and these are normally
maintained by a backup battery in the event of power failures. If you wish to change
the date or time, or if the LoT™ Display shows the message 'SET DATE + TIME' just
follow the instructions below. Otherwise, go to Step 2.
a. Move the slider to the DAY/TIME position. The message 'SET DATE + TIME' will
show briefly on the screen, followed by 'SET THE DAY', and the day of the month
will now be flashing to indicate it can be changed.
DAY/TIME
HOT WATER
HEATING
RUN
b. To change the day of the month, press the
day is shown. Each press of the button will change the date by one day. As soon
as a change has been made, the message 'IS DAY OK?' will be displayed. Once
the correct day is reached, press the green
the next step. If you do not need to make a change, just press the
immediately and this will move you to the next step.
c. The month digits will now be flashing and 'SET THE MONTH' will be displayed. To
change the month, press the
The message 'IS MONTH OK?' will be displayed. Press the green
confirm the month is correct and move to the next step.
6
HOT WATER
or
button to confirm, and move to
or buttons until the correct month is shown.
HEATING
buttons until the correct
button to
button