Horstmann ServicePlus S11 Instructions de fonctionnement
The Horstmann ServicePlus S11 /S11R time switch will allow up to
3 ON/OFF settings per 24 hours and has a 1 hour manual boost and
advance button to temporarily override current settings.
There is also a programming switch allowing permanent selection of:
OFF/ON/AUTO/ALL DAY.
Additionally, the ServicePlus time switch gives an advance warning
of the annual boiler safety check due date.
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The simple instructions contained in this user guide are designed to help with the
programming and operation of the unit.
SET indicator - RUN is the normal position
Time of day
Switch period symbol
SET button
BOOST or adjust (-) button
ADVANCE or adjust (+) button
ENTER button
SELECT button
SET positions
System ON indicator
PROGRAMME positions
BOOST symbol
ADVANCE symbol
AM/PM symbol
PROGRAMME indicator
BOOST
ADVANCE
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The boost facility will allow the user to boost the system which is currently ‘OFF’ for 1 hour.
To indicate the boost being activated BOOST will be shown on the display for the duration
of the boost period. The system ON indicator will also be illuminated.
The advance facility will allow the user to advance the system to ‘ON’ when currently ‘OFF’
or switch the system ‘OFF’ when currently ‘ON’. To indicate the advance feature being
activated ADVANCE will be shown on the display until the next programme switching time.
The system ON indicator will also be illuminated.
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AUTO
ALL DAY
24 HRS
OFF
AUTO
ALL DAY
24 HRS
OFF
6:35
6:35
PM
PM
RUN
CLOCK
PROG
RUN
CLOCK
PROG
BOOST
ADVANCE
With the ServicePlus S11/S11R timeswitch operating in the normal running mode it is
possible to alter the functionality of the programme by means of the SELECT button.
The options include;
- Timeswitch follows all programmed ‘ON’ and ‘OFF’ times.
- Timeswitch operates from 1st ‘ON’ time until 3rd ’OFF’, ignoring all
switching times in between.
- Timeswitch will be constantly ‘ON’.
- Timeswitch will be constantly ‘OFF’, there is the ability to turn off the
heating during the summer without altering the programme times.
Boost is still available.
All of the settings above will be permanent, i.e. unaffected by programme times, until
alteration by the user.
The diagram below illustrates how to alter the setting, it assumes that the programme is in
the AUTO mode to begin with.
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AUTO
ALL DAY
24 HRS
OFF
6:35
PM
AUTO
ALL DAY
24 HRS
OFF
6:35
PM
AUTO
ALL DAY
24 HRS
OFF
6:35
PM
AUTO
ALL DAY
24 HRS
OFF
6:35
PM
The default time settings shown above are preset at the factory
To alter these settings please proceed as follows:-
NB. The factory default settings for the 2nd ON/OFF times are both set at 12:00pm
(midday) which cancels this ‘ON’ period giving 2 ON/OFF periods for 24hrs. If a midday
‘ON’ period is required set the 2nd ON and OFF times accordingly. If not press ENTER twice.
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12:00 6:35
6:35
PM PM
AM
ON
RUN
CLOCK
PROG
RUN
CLOCK
PROG
RUN
CLOCK
PROG
1st ON 1st OFF 2nd ON 2nd OFF 3rd ON 3rd OFF
6.30AM 8.30AM 12.00PM 12.00PM 4.30PM 10.30PM
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Electronic equipment can in some circumstances be affected by electrical interference. If
the programmer’s display becomes frozen or scrambled; or if you wish to revert back to
the default time settings please reset by pressing the SET and SELECT buttons together as
shown below.
After initial installation it is advisable, before programming the CentaurPlus for the rst
time, to reset the unit. Resetting can only be achieved with the power ‘ON’ by pressing the
SET and SELECT buttons together. This will return the programmer to the factory set default
times.
SET
SELECT
The programmer is tted with a non-rechargeable, long life battery, which will
maintain the programmed time settings for a minimum of ten months with the supply
disconnected.
THIS SHOULD BE SUFFICIENT TO COVER POWER INTERRUPTIONS DURING THE LIFE OF THE UNIT.
During power interruptions the display will be blank, after 3 days the current time of day
will be lost. These measures are to prolong the battery life.
This programmer is NOT user serviceable. Please do not dismantle the unit.
In the unlikely event of a fault developing please refer to the RESETTING THE PROGRAMMER
section of this user guide shown above. If this fails to resolve the problem please contact a
local heating engineer or a qualied electrician.
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Programmers allow you to set ‘On’ and ‘Off’ time periods. Some models switch the central
heating and domestic hot water on and off at the same time; while others allow the
domestic hot water and heating to come on and go off at different times.
Set the ‘On’ and ‘Off’ time periods to suit your own lifestyle. On some programmers you
must also set whether you want the heating and hot water to run continuously, run under
the chosen ‘On’ and ‘Off’ heating periods, or be permanently off.
The time on the programmer must be correct. Some types have to be adjusted in Spring
and Autumn at the changes between Greenwich Mean Time and British Summer Time.
You may be able to temporarily adjust the heating programme, for example, ‘Override’,
‘Advance’ or ‘Boost’. These are explained in the manufacturer’s instructions.
The heating will not work if the room thermostat has switched the heating off. And, if
you have a hot-water cylinder, the water heating will not work if the cylinder thermostat
detects that the hot water has reached the correct temperature.
Email: [email protected].uk
Website: www.horstmann.co.uk
Horstmann Controls Limited, Bristol BS4 1UP
Leaflet number P82510 Issue 2
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