Honeywell Y9120W Sundial RF2 Pack 4, User Manual

7

GETTING STARTED WITH YOUR ST9120C

b.

  To change the day of the month, press the     or   buttons until the correct 

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   button to confirm, and move to 

the next step. If you do not need to make a change, just press the   button 

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     or   buttons until the correct month is shown. 

The message ‘IS MONTH OK?’ will be displayed. Press the green   button to 

confirm the month is correct and move to the next step.

d.

  The year digits will now be flashing and ‘SET THE YEAR’ will be displayed. To 

change the year, press the     or   buttons until the correct year is shown. The 

message ‘IS YEAR OK?’ will be displayed. Press the green   button to confirm 

the year is correct. If you have made a change and the date is a valid date, the 

message ‘DATE SAVED’ will show and you can move to the next step. If the date 

you set was not valid, for example 31 September, the message ‘INVALID’ will 

show and you will be returned to the start of the date setting operation.

e.

  The time will now be flashing and the message ‘SET THE TIME’ will be displayed. 

To change the time, press the     or   buttons until the correct time is shown. 

Each press of the button will change the time by one minute. Holding the button 

down for more than a few seconds will change the time slowly at first, then 

quickly. The message ‘IS TIME OK?’ will be displayed. Press the green   button 

to confirm the time is correct.  If you have made a change, the message ‘TIME 

SAVED’ will show, followed quickly by ‘DATE + TIME COMPLETE’.

f.

  Move the slider to the 

RUN

 position to complete setting the date and time.

Note:

 if the slider is moved at any time before the date and time have been set 

correctly, the message ‘DATE UNCHANGED’ will be displayed briefly, and your 

changes will not be saved.

Step 2: Running a Built-in Programme

With the date and time correct, your ST9120C Timer will now be operating to the 

built-in programmes. These have been designed to provide hot water at typical times 

throughout the day, but if you want to customise the settings, please see the next 

section ‘

PROGRAMMING YOUR  ST9120C

’ (page 8).