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Manual Horstmann CentaurPlus C27 Thermostat

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Manual

1.SET indicator 10.Central heating ON indicator

2.Time of day 11.SET positions

3.Switch Period symbol 12.PROGRAMME positions

4.SET Button 13.BOOST symbol

5.Hot water BOOST or adjust (-) button 14.ADVANCE symbol

6.Central heating ADVANCE or adjust (+) button 15.AM/PM symbol

7.Hot water (HW) select or ENTER Button 16.Day of week indicator

8.Central heating (CH) select or COPY button 17.PROGRAMME indicators

9.Hot water ON indicator

QUESTIONSANDANSWERS

The unit display has become frozen

The indicator neon fails to illuminate

on Hot water or Central heating

channel

The indicator neon will illuminate but

the pump and/or boiler fails to

operate

There is no display on the

programmer

How do I know if the programmer is

still under warranty

How is the programmer removed

from the wall

This could be due to local electrical interference

Using the RESET procedure may rectify the fault.

Using the RESET procedure may rectify the fault. If the problem persists the programmer will

need replacing.

This may indicate a problem elsewhere in your system;

E.g. A zone valve, etc. please contact a registered installer for advice.

Try the RESET procedure on page 2, if this fails to rectify the problem please have the mains

supply checked

The CentaurPlus range comes with a 2 year guarantee from the date of manufacture.

This date is located on the rear of the unit, indicated by a month over a year

WARNING: The CentaurPlus programmer must only be removed from it’s backplate by 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

LEAFLET No P60498

ISSUE 4

FRONT VIEW OF PROGRAMMER

Page 1

Page 4

The following are some of the easy to operate features:-

Flexible 7 Day Control

1 Hour Boost on Hot Water

Independent timing on Hot Water and Heating

Central Heating Advance gives instant On/Off override

Up to 3 On/Off periods per channel in each 24Hr operation.

Programme options: Auto / All day / 24 Hours / Off

SERVICE AND REPAIR

This programmer is NOT user serviceable. Please do not dismantle the unit.

In the unlikely event of a fault developing please refer to the RESETTINGTHEPROGRAMMERsection 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.

BATTERY

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.

Horstmann’s C27 - Two Channel Programmer Offers up to three

programmed operating periods per day, seven days a week,

with Hot water Boost and Heating Advance control on a fully

pumped system.

Horstmann Controls Limited

Bristol

BS4 1UP

Email: [email protected]k

Website: www.horstmann.co.uk

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Specifications

Brand	Horstmann
Model	CentaurPlus C27
Category	Thermostats
File type	PDF
File size	0.21 MB

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Frequently Asked Questions about Horstmann CentaurPlus C27 Thermostat

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

What is the dead zone of a thermostat? Verified

Many modern thermostats have a dead zone. If the temperature deviates less than 4°C from the set temperature, the system will not heat or cool. This so called dead zone of the thermostat prevents the system from turning on and off too often, saving energy.

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What is the best place to mount a thermostat? Verified

The best place for a thermostat is approximately 1,5 meter above the ground. Never place the thermostat nead a radiator or other heat emitting equipment or in direct sunlight. Choose a room that is used often. In most cases this is the living room.

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