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Bosch Worcester 15SBi Installation & Operating Instructions Manual page 4

System boilers twin channel digital programmer
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Set right switch to DHW.
The display shows weekdays Mon...Fri and the first standard on-time (programme step 1)
Press HR & MIN buttons for your required first on time for the week.
Press
P
Display shows the first standard off-time (programme step 2)
Press HR & MIN buttons for your required off time.
Use buttons
HR and MIN as above for next weekday switch period, then the two weekend
P
periods, finishing with programme step 8.
Odd programme step numbers are on times and even numbers are off times.
Set right switch to CH and repeat above for all central heating programmes.
Set right switch to RUN.
NOTE: The standard programme also contains further programme steps 9-16. These should be 'switched off' ie
the display should flash 0.00 at each of these steps. To check this press
again to view these switch points. If
P
required, these can be switched off by pressing ADV then
TOGETHER for 5 seconds, then release the buttons.
P
In case of confusion or errors you can completely reset the programmer. See 'Reset' section.
FULL-FUNCTION PROGRAMME SETTING
It is possible to set your programme requirements to 8 switch periods (per channel) over
combinations of days, weeks and weekends.
Set right switch to DHW.
Use the
, DAY, HR and MIN buttons to create the desired programme times as follows;
P
to step to the next switch time.
P
DAY to set the day (or days) at which the switch time occurs
HR & MIN to set the hours and minutes for the switch time.
Set right switch to CH and repeat above for all central heating programmes.
Right switch to RUN.
IMPORTANT NOTES
An 'odd' programme step number is always the ON time.
An 'even' programme step number is always the corresponding OFF time.
Hence the eight switch periods are programme steps 1-2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14, 15-16.
The day (or days) setting must be indentical for the on time and corresponding off time.
TO VIEW PROGRAMME TIMES
Set right switch to DHW or CH as required.
Repeatedly press
to scroll through the on and off times (or keep
depressed and the unit
P
P
automatically scrolls through the switch times).
If switch times are to be changed, simply use HR and MIN buttons when displayed.
Set right switch to RUN.
NORMAL RUNNING
Right switch must be in the RUN position
Left switch should be in AUTO position
The programmer will automatically operate according to your set programme periods. In addition
to actual time and day, various smaller characters may also be displayed on the right of the screen.
See Fig 2.
ADVANCE FACILITY
It is possible to change the programme to the next on or off period in advance of the set time.
The switches must be in the AUTO and RUN positions.
3

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