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FAQ AND TrOUBLeSHOOTING

How  do  I  set  the  time  only,  if  the  ST9100C  clock  is  not 

correct?

Your ST9100C contains a very accurate digital clock that is factory pre-set. Should 

you ever need to change the time, just follow this procedure:

a.

  Move the slider to the 

DAY/TIme

 position.

b.

  Keep  pressing  the  green 

  button  until  the  message  ‘SET  THE  TIME’  is 

displayed. To change the time, press the     or   buttons until the correct 

time is shown. 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’.

c.

  Move the slider to the 

rUN

 position, to complete changing the time.

What do I do when the clocks go back in October and forward 

in march?

Your ST9100C is factory-set to adjust the clock automatically at the correct dates, 

so you should never need to adjust the clock forward or backwards yourself. It is 

possible to disable this particular feature, as described in the section ‘

Changing the 

Installer Parameters

’ (page 12). You may also check the section ‘

Configuration & 

Service Data

’ (page 18) to see how your Installer has configured your product.

What  should  I  do  if  I  get  ‘lost’  while  programming  the 

ST9100C?

The LoT™ Display on ST9100C will provide you with help and tips to work through 

the programming. Should you ever get ‘lost’, the simplest thing to do is to move the 

slider to the 

rUN

 position, and then move it back to the appropriate programming 

position where you got lost. At this point just follow the instructions again.

What happens if there is a power failure?

In the event of a mains power failure, the ST9100C display will go blank, the indicator 

lamp will go out, and the control output will switch off. The real time will be constantly 

maintained by means of the built-in battery backup, ready to power back up as if 

nothing had happened when the mains power is restored. In addition, all programmes 

and settings are stored in a special memory (called NV memory) which requires no 

power to maintain information, and so will be retained indefinitely.
Should the correct time and date ever be lost, for whatever reason, the message ‘SET 

DATE + TIME’ will be displayed whilst the slider is in the 

rUN

 position. In this case, 

simply  follow  the  procedure  described  under  ‘

Step  1:  Setting  the  Date  & Time

’ 

(page 4). It should not be necessary to make any changes to your programmes.

Summary of Contents for ST9100C

Page 1: ...is required for other heating periods 5 In the evening when the house is up to temperature it is often possible to switch off the heating up to an hour before you go to bed without any noticeable reduction in comfort PLEASE RESPECT YOUR ENVIRONMENT Take care to dispose of this product and any packaging or literature in an appropriate way This product and its associated documentation and packaging ...

Page 2: ...s not correct 14 What do I do when the clocks go back in October and forward in March 14 What should I do if I get lost while programming the ST9100C 14 What happens if there is a power failure 14 Troubleshooting Guide 15 CONFIGURATION SERVICE DATA Configuration Data to be completed by Installer 18 Boiler System Service Log 19 ST9100C Controls Layout Time Display LoT Technology Display Programme T...

Page 3: ... example OVERRIDE EXTRA HOUR and MODE buttons A typical use of the OVERRIDE feature is when you return home unexpectedly for the rest of the day and the heating is off Just press the OVERRIDE button and the heating will come on until the next programme time at which point it will follow the normal programme The advantage here is that you do not have to remember to switch off because the normal tim...

Page 4: ...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 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 messag...

Page 5: ...ss 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 set...

Page 6: ...nday to Friday 6 30am 8 30am 12 00pm 1 00pm 4 30pm 10 30pm Saturday Sunday 6 30am 9 30am 12 00pm 1 00pm 4 30pm 11 00pm ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3 Monday Tuesday Wednesday Thursday Friday Saturday Sunday Your Personal Programme The table below has been left blank for you to record your own personal programme Built in Programme Profile b ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3 Monday to Friday 6 30am...

Page 7: ...w you to programme the system to stay on past midnight if required a Move the slider to the PROGRAMME position SET PROGRAMME will show briefly to verify this action b SET ON TIME 1 will then be displayed and the time setting for the first ON 1 time for MONDAY will now be flashing to indicate it can be changed If you do not wish to change the time press the green button and move to the next step If...

Page 8: ...d for a moment to confirm that any change has been saved to memory d The remaining ON and OFF times ON 2 OFF 2 ON 3 OFF 3 can be set by using the or buttons to change the time and the green button to confirm the time is correct and move to the next step If you do not wish to change the time just press the green button to move directly to the next ON OFF time without making any changes e After sett...

Page 9: ...days can be set in the same way using the NEXT DAY button to move to the next day Exiting Programming Mode To exit 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 button will have been saved Note If the unit is left in programming mode for more than 10 minutes without the slider being moved...

Page 10: ...ode The system will be switched ON and OFF according to the programme ONCE mode The system will come ON at the first programmed ON time and go OFF at the last programmed OFF time CONT Continuous mode The system will remain ON continuously Overriding the Operation Without Changing the Programmes In AUTO and ONCE operating modes the OVERRIDE button switches the system ON or OFF without altering the ...

Page 11: ...mes normal operation on the day of your return To set the Holiday function a Ensure the slider is in the RUN position then press the HOLIDAY button once The message SET HOLIDAY will appear briefly followed by SET DAYS AWAY b Use the or buttons to set the number of days you will be away The display will show the number of days and this number will be flashing to indicate it can be changed The day o...

Page 12: ...can be adjusted to suit your lifestyle or preferences these are called Installer Parameters and are listed in the table below along with a description of the options that are possible INSTALLER PARAMETER Parameter Number Default Value Options Description 24hr or am pm clock display 1 12 12 24 12 am pm display 24 24hr display Configure backlight operation 2 2 0 1 2 0 off 1 on if button pressed 2 on...

Page 13: ...e parameter number is shown on the display separated by a colon from the parameter value d You can change the parameter value by pressing the or buttons At this point the description in the LoT Display will change and the parameter value will flash If you press the value will stop flashing and be saved for use e Press to move to the next parameter available for editing f Keep pressing to step arou...

Page 14: ...vice Data page 18 to see how your Installer has configured your product What should I do if I get lost while programming the ST9100C The LoT Display on ST9100C will provide you with help and tips to work through the programming Should you ever get lost the simplest thing to do is to move the slider to the RUN position and then move it back to the appropriate programming position where you got lost...

Page 15: ...er Temperature controls are switched off or set too low Check that the temperature controls in the system are set to appropriate levels Boiler or other system controls have malfunctioned Call Installer ST9100C shows the message INTERNAL FAULT Fault in ST9100C Call Installer Troubleshooting Guide This is a quick guide to help you diagnose and cope with possible problems with ST9100C For further ass...

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Page 18: ...button pressed On continuously Automatic time change Enabled Disabled 1 day or 5 2 day or 7 day operation 1 day operation 5 2 day operation 7 day operation Number of ON OFFs per day 2 on offs per day 3 on offs per day Default programme A standard b at home C economy Configuration Data to be completed by Installer The table below is for the Installer to complete to indicate how your ST9100C has bee...

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