Horstmann CentaurPlus C21 Manual

The programmer is fitted 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.
S S E E R R V V I I C C E E A A N N D D R R E E P P A A I I R R
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 located on page 2. If this fails to resolve the problem please contact a local heating
engineer or a qualified electrician.
Q Q U U E E S S T T I I O O N N S S A A N N D D A A N N S S W W E E R R S S
The unit display has become frozen This could be due to local electrical interference
Using the RESET procedure may rectify the fault.
The indicator neon fails to illuminate on Using the RESET procedure may rectify the fault. If the problem persists the programmer
Hot water or Central heating channel will need replacing.
The indicator neon will illuminate but This may indicate a problem elsewhere in your system;
the pump and/or boiler fails to E.g. A zone valve, etc. please contact a registered installer for advice.
operate
There is no display on the Try the RESET procedure on page 2, if this fails to rectify the problem please have the
programmer mains supply checked
How do I know if the programmer is The CentaurPlus range comes with a 2 year guarantee from the date of
still under warranty manufacture. This date is located on the rear of the unit, indicated by a month over a
year
How is the programmer removed from W W A A R R N N I I N N G G : : The CentaurPlus programmer must only be removed from it's backplate by
the wall either a qualified electrician or heating engineer; The programmer plugs in to a 6 pin
backplate located on the rear of the unit and is secured using 2 screws located on the
bottom surface of the unit. Undo these screws and pull forward and up in an arc motion
Horstmann Controls Limited
Email: sales@horstmann.co.uk
Website: www.horstmann.co.uk
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B B A A T T T T E E R R Y Y
Bristol
BS4 1UP
T T h h e e f f o o l l l l o o w w i i n n g g a a r r e e s s o o m m e e o o f f t t h h e e e e a a s s y y t t o o o o p p e e r r a a t t e e f f e e a a t t u u r r e e s s : : - -
11
3
9
1.SET indicator
2.Time of day
3.Switch Period symbol
4.SET Button
5.Hot water BOOST or adjust (-) button
6.Central heating ADVANCE or adjust (+) button
7.Hot water (HW) select or ENTER Button
LEAFLET No P60497
8.Central heating (CH) select button
ISSUE 4
H H o o r r s s t t m m a a n n n n ' ' s s C C e e n n t t a a u u r r P P l l u u s s - - T T w w o o C C h h a a n n n n e e l l P P r r o o g g r r a a m m m m e e r r s s Offer up
to three programmed operating periods per day with Hot water
Boost and Heating Advance control on a fully pumped system.
1 1 H H o o u u r r B B o o o o s s t t o o n n H H o o t t W W a a t t e e r r
I I n n d d e e p p e e n n d d e e n n t t t t i i m m i i n n g g o o n n H H o o t t W W a a t t e e r r a a n n d d H H e e a a t t i i n n g g
C C e e n n t t r r a a l l H H e e a a t t i i n n g g A A d d v v a a n n c c e e g g i i v v e e s s i i n n s s t t a a n n t t O O n n / / O O f f f f o o v v e e r r r r i i d d e e
U U p p t t o o 3 3 O O n n / / O O f f f f p p e e r r i i o o d d s s p p e e r r c c h h a a n n n n e e l l i i n n e e a a c c h h 2 2 4 4 H H r r o o p p e e r r a a t t i i o o n n . .
P P r r o o g g r r a a m m m m e e o o p p t t i i o o n n s s : : A A u u t t o o / / A A l l l l d d a a y y / / 2 2 4 4 H H o o u u r r s s / / O O f f f f
FRONT VIEW OF PROGRAMMER
15
1
4
9.Hot water ON indicator
10.Central heating ON indicator
11.SET positions
12.PROGRAMME positions
13.BOOST symbol
14.ADVANCE symbol
15.AM/PM symbol
16.PROGRAMME indicators
2 16
12
13
14
10
5 6 7 8
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