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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.
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 Avance 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
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 use the following procedure.
Press the SET and CH buttons together then release the buttons and the programmer will return to preset factory settings.
The simple instructions below are designed to help with the programming of the unit.
The default factory settings are shown, however if you wish to change these proceed as instructed below.
1st ON | 1st OFF | 2nd ON | 2nd OFF | 3rd ON | 3rd OFF | |
MON-FRI | 6:30 AM | 8:30 AM | 12:00 PM | 12:00 PM | 4:30 PM | 10:30 PM |
SAT/SUN | 7:30 AM | 10:30 AM | 12:00 PM | 12:00 PM | 5:00 PM | 11:00 PM |
The default factory settings are shown, however if you wish to change these proceed as instructed below.
Programming ON/OFF times
If a Heating or Hot water period is not required it can be cancelled by setting the ON and OFF settings to the same time. Example ON 10:00am OFF 10:00am
The installer will have set the programmer to suit the installed system. If this is a Fully pumped system this will allow independent control of the Central heating and Hot water, however on a Gravity system the Central heating and Hot water are linked so that it is not possible to use the Central heating independently.
This will allow only one common time setting for both Hot Water and Central Heating.
The SET indicator must remain in the RUN position for the following instructions.
The following actions work independently on either Hot Water or Central Heating.
1hour temporary override
Press BOOST button:
Your Hot Water will be Boosted for 1 hour
At any time during a BOOST period press BOOST again to return to normal programming
Brings forward next ON or OFF operation
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.
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 UNIT section. If this fails to resolve the problem please contact a local heating engineer or a qualified electrician.
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 Hot water or Central heating channel | Using the RESET procedure may rectify the fault. If the problem persists the programmer will need replacing. |
The indicator neon will illuminate but the pump and/or boiler fails to operate | This may indicate a problem elsewhere in your system; E.g. A zone valve, etc. please contact a registered installer for advice. |
There is no display on the unit | Try the RESET procedure, if this fails to rectify the problem please have the mains supply checked |
How do I know if the programmer is still under warranty | 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 |
How is the unit removed from the wall | 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 |
Email: sales@horstmann.co.uk
Website: www.horstmann.co.uk;
Horstmann Controls Limited
Bristol
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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