Honeywell thermostat ST9100S 1 Day Service Time Switch User Manual

							
11

OPer ATING YOU r  ST9100S
Overriding the Operation Without Changing the Programme
In AUTO and ONCe operating modes, the OVerr ID e button switches the system ON or OFF without altering the programme. 
When the indicator lamp is ON, pressing the OVerr ID e button switches the system OFF until the next programmed ON time.
When  the  indicator  lamp  is OFF,  pressing  the OVerr ID e  button  switches  the system ON until the next programmed OFF time.
The LoT™ Display will provide you with information about the override.
The e xtra Hour Function
The eXT r A HOU r button allows you to switch the system ON for up to 3 extra hours without  altering  the  programme.  Pressing  the  button  once  will  give  one  extra  hour.  The  LoT™  Display  will  display  the  message  ‘+  1  HOUR’,  to  confirm  the  button  has been pressed. 
When  the  green INDICATOr   LA m P  is OFF,  pressing  the eXT r A  HOU r  button switches the system ON for just one hour.
When  the  green INDICATOr   LA m P  is ON,  pressing  the eXT r A  HOU r  button extends the programmed ON period by one hour.
Further  presses  of  the eXT r A  HOU r  button  will  increase  the  extra  hour  period  by one hour for each button press, up to a maximum of 3 hours.  The LoT™ Display will continue to provide information on the extra hour status.
To  cancel  the  extra  hours,  just  keep  pressing  the eXT r A  HOU r  button  until  the ‘CANCELLED’ message appears on the LoT™ Display. 
						

							
12

FINe  TUNING YOU r  ST9100S
Changing from Am /P m  Time Display to the 2   Hour Clock
Your  ST9100S  can  operate  on  the  12  hour  AM/PM  or  24  hour  clock  formats.  To change the format, ensure the slider is in the rUN position then press and hold the   and  buttons together for about 2 seconds. Ignore the ‘NOT VALID’ message that will appear briefly. All the displayed times will be automatically changed to the new format.
Repeating this procedure will change the clock display back to the original format.
Changing the Installer Parameters
The  ST9100S  has  a  special  Installer  Mode  where  some  features  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.
INSTALL er  PAr A me T erParameter NumberDefault ValueOptionsDescription
24hr or am/pm clock display.11212, 2412 = am/pm display,24 = 24hr display
Configure backlight operation.220, 1, 20 = off, 1 = on if button pressed,2 = on continuously
Enable/disable auto time change.310, 10 = disabled, 1 = enabled
Number of ON/OFFs per day.522, 32 = 2 on/offs per day,3 = 3 on/offs per day
Select default time programme.6AA, b, CA = standard, b = at home,C = economy
Reset all parameters810, 10 = do not reset1 = default parameters 
						

							
1

FIN e  TUNING YOU r  ST9100S
To e nter Installer  m ode:
a. Ensure the slider is in the rUN position, then press and hold  and  buttons together for 8 seconds. Ignore the ‘NOT VALID’ message that is displayed for a few  seconds.  The  message  ‘SET  UP  MENU’  will  show  briefly,  followed  by  ‘SET INSTALLER OK ?’
b.  Press the  button to take you into the Installer Mode Parameter Menu.
c.  Parameter  1  is  now  available  to  change.  This  is  to  allow  you  to  change  the clock  format  from  12  hour  AM/PM  to  24  hour.  At  every  step,  the  LoT™  Display will  inform  you  what  the  parameter  means  and  what  option  you  have  selected. The  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  around  the  list  of  parameters,  and  use    or  buttons to change the parameter value.
g. Any  parameter  changes  that  have  been  confirmed  with  the   button  will  be saved and used.
To  e xit Installer  m ode:
h. You can exit Installer Mode at any time by moving the slider to the next position and then back again to rUN.
 Note:  Installer  Mode  will  exit  automatically  after  10  minutes  if  the  slider  is  not moved. 
						

							
1

FAQ AND T r OUBL e SHOOTING
How  do  I  set  the  time  only,  if  the  ST9100S  clock  is  not correct?
Your  ST9100S  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/TI me 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  m arch?
Your  ST9100S  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 ST9100S?
The LoT™ Display on ST9100S 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 ST9100S 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. 
						

							
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Troubleshooting Guide
This  is  a  quick  guide  to  help  you  diagnose  and  cope  with  possible  problems  with ST9100S. For further assistance, please contact your Installer.
FAQ AND T r OUBL e SHOOTING
SymptomPossible Causeremedy
ST9100S has a blank LCD displayNo power to the heating systemCheck that there is power to the heating system
Fault in ST9100SCall Installer
ST9100S indicates that the system is ON, but radiators are cold and/or taps are running with cold water.
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
ST9100S shows the message: ‘INTERNAL FAULT’
Fault in ST9100SCall Installer
Every few seconds, the ST9100S screen shows the message: 
ST9100S is counting down the number of days until your next boiler service is due.
Arrange a boiler service before the counter reaches zero.
After servicing your boiler, the Service Engineer / Installer will reset the ST9100S to remind you when the next boiler service is due. Each service is normally a maximum of 1 year apart.
Although the heating is still operating, the ST9100S screen keeps flashing the message:
Your boiler service is OV er DU e.Arrange an immediate boiler service.
After servicing your boiler, the Service Engineer / Installer will reset the ST9100S to remind you when the next boiler service is due. Each service is normally a maximum of 1 year apart.
The ST9100S screen shows the message:Your boiler service is OVer DU e and the boiler has been automatically switched off to ensure your safety.
Arrange an immediate boiler service.
If set to do so, it may be possible to obtain limited use of the boiler by pressing any eXT r A HOU r button. Each button press will allow operation of the boiler for 1 hour at a time, and the screen will display the message “On 1h”.
After servicing your boiler, the Service Engineer / Installer will reset the ST9100S to remind you when the next boiler service is due. Each service is normally a maximum of 1 year apart. 
						

							
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BOILer  S er VIC e   rem IND er
By  Law,  your  gas  boiler  should  be  inspected  once  a  year  to  ensure  it  is  operating safely.  Your  ST9100S  Programmer  has  a  range  of  features  designed  to  help  make sure this service is carried out at the correct time. These features will be programmed by your Installer, maintenance Engineer, or Landlord.
•  If  it  has  been  set  to  do  so,  ST9100S  will  display  a  message  on  the  screen  to remind you that a boiler service is due.
•  If the service is overdue, the Programmer may switch off the heating system, to ensure your safety. If this happens you must arrange an immediate service visit. Contact details should be listed on page 19 of this guide, in the section Boiler & System Service Log.
•  A contact telephone number may also have been programmed into the ST9100S. If  so,  a  message  will  appear  on  the  LoT™  Display  indicating  the  number  you should call.
Countdown to Service
Your  ST9100S  can  indicate  a  countdown  for  the number  of  days  until  your  service  is  due.  This message  will  appear  on  the  screen  every  few seconds, to give you an opportunity to schedule a service visit.
When Service is Due
When your boiler service is OVer DU e the words “Ser VIC e   DU e ”  will  continue  to  flash  on  your screen,  and  you  should  arrange  an  immediate service visit. 
						

							
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Shut-down
If  your  ST9100S  shows  the  words “Ser VIC e  DUe ”  and “OFF”  then  your  boiler  service  is OVer DU e and the boiler has been automatically switched  off  to  ensure  your  safety  –  you  should arrange an immediate service visit.
If set to do so, it may be possible to obtain limited use  of  the  boiler  by  pressing  the eXT r A  HOU r button.  Each  button  press  will  allow  operation  of the  boiler  for  1  hour  at  a  time,  and  the  screen will  display  the  message “On  1h”  as  shown. However,  you  should  still  arrange  an  immediate service visit, as this will allow you to comply with the  law  and  ensure  your  gas  boiler  is  operating safely.
BOILer  S er VIC e   rem IND er 
						

							
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CONFIGU r ATION & S er VIC e  DATA
Configurable FeaturesOptionsInstaller Configured (tick appropriate box)
24hr or am/pm clock displayam/pm display
24hr display
Display backlight operationOff
On if button pressed
On continuously
Automatic time changeEnabled
Disabled
Number of ON/OFFs per day2 on/offs per day
3 on/offs per day
Default programmeA = 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  ST9100S  has been configured.