Horstmann H37XL 2 Series - Three Channel Programmer Installation Instructions Manual

FITTING THE BACKPLATE

INSTALLATION AND CONNECTION SHOULD ONLY BE CARRIED OUT BY A SUITABLY QUALIFIED PERSON AND IN ACCORDANCE WITH THE CURRENT EDITION OF THE IEE WIRING REGULATIONS.

ISOLATE MAINS SUPPLY BEFORE COMMENCING INSTALLATION

Once the Backplate has been removed from the packaging please ensure the programmer is re-sealed to prevent damage from dust, debris etc.

The Backplate should be fitted with the wiring terminals located at the top and in a position which allows the relevant clearances around the programmer. (See diagram)

DIRECT WALL MOUNTING

Offer the plate to the wall in the position where the programmer is to be mounted, remembering that the Backplate fits to the right hand end of the programmer.

Mark the fixing positions through the slots in the Backplate (Fixing centres 60.3mm), drill and plug the wall, then secure the plate in position. The slots in the Backplate will compensate for any misalignment of the fixings.

WIRING BOX MOUNTING

The Backplate may be fitted directly on to a single gang steel flush wiring box complying with BS4662, using two M3.5 screws.

ChannelPlus series 2 programmers are suitable for mounting on a flat surface only, they must not be positioned on a surface mounted wall box or on unearthed metal surfaces.

ELECTRICAL CONNECTIONS

All necessary electrical connections should now be made. Flush wiring can enter from the rear through the aperture in the Backplate. Surface wiring can only enter from beneath the programmer and must be securely clamped.

The mains supply terminals are intended to be connected to the supply by means of fixed wiring.

The recommended cable sizes are 1.0mm² or 1.5mm².

ChannelPlus programmers are double insulated and do not require an Earth connection but an Earth terminal is provided on the Backplate for terminating any cable Earth conductors.

Earth continuity must be maintained and all bare Earth conductors must be sleeved. Ensure that no conductors are left protruding outside the central space enclosed by the Backplate.

INTERNAL WIRING DIAGRAM H37XL Series 2

NEW INSTALLATIONS

An Example circuit diagram is shown below. This diagrams is schematic and should be used as a guide only.

Please ensure that all installations comply with the current IEE regulations.
For reasons of space and clarity the diagrams has been simplified, for instance some Earth connections have been omitted. Other control components shown in the diagrams i.e. Valves, RoomStats etc. are general representations only. However the wiring detail can be applied to the corresponding models of most manufacturers e.g. Horstmann, Honeywell, Danfoss Randall etc.

Cylinder and Room Thermostat Key:
C = Common

CALL = Call for heat or break on rise

SAT = Satisfied on rise

N = Neutral

ChannelPlus H37XL Series 2 Controlling 3 x two port spring return zone valves via RoomStat and CylinderStat giving independent control of Hot water and two zones of Heating.

NOTE: If the ChannelPlus H37XL Series 2 is being installed on an existing system additional equipment such as an extra zone valve may have to be fitted in order to achieve full three channel control.

COMMISSIONING THE PROGRAMMER

Ensure all dust and debris has been cleared away from the work area before removing the programmer from its packaging.

All ChannelPlus XL controls are fitted with battery reserve which maintains programmed times in the event of a mains power failure.

REAR VIEW OF CHANNELPLUS XL PROGRAMMER

1. RETAINING SCREWS
2. CONNECTOR BLADES
3. PRODUCTION DATE LABEL
4. POSITIONING LUGS
5. RATINGS LABEL

FITTING THE PROGRAMMER

END VIEW OF CHANNELPLUS PROGRAMMER

If surface wiring has been used, remove the knockout/insert from the bottom of the programmer to accommodate it. Loosen the two 'captive' retaining screws on the top of the unit. Now fit the programmer to the Backplate, line the lugs on the programmer with the flanges on the Backplate.

Swing the top of the programmer into position ensuring that the connection blades on the back of the unit locate into the terminal slots in the backplate.

Tighten the two 'captive' retaining screws to fix the unit securely, then switch on the mains supply.

INITIAL SET-UP

Once the mains power has been switched on the ChannelPlus H37XL Series 2's display will illuminate. The programmer has a number of pre-programmed functions to assist the installation, which are detailed below;

TIME AND DATE - The programmer has been pre-set with the current time and date during manufacture. No alteration should be required to the time and date, however if any modifiaction is required please refer to the 'Adjusting Time and Date' section of the user guide.

PROGRAMME TIMES - The programmer has been pre-set with default heating and hot water times, these can be altered to meet the user requirements, please refer to the 'Setting the Programme Times' section of the user guide.

GENERAL INFORMATION

BATTERY

The programmer is fitted with a non-rechargeable, non-serviceable long life battery, which will maintain the programmed time settings with the mains supply disconnected.

THIS RESERVE SHOULD BE SUFFICIENT TO COVER POWER INTERRUPTIONS DURING THE LIFE OF THE UNIT.

During power interruptions the display will be blank.

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 RESETTING THE PROGRAMMER section of this user guide. If this fails to resolve the problem please contact a local heating engineer or a qualified electrician.

RESETTING THE PROGRAMMER

Electronic equipment can in some circumstances be affected by electrical interference. If the display becomes frozen or scrambled; or if you wish to revert back to the default settings please use the following procedure.

RESET PROCEDURE
PLEASE NOTE - Using this procedure will restore the ChannelPlus to the original factory programme settings, the time setting will also default to 1st January 2005.

Lower the front flap of the unit. On third Channel press the ADVANCE(Enter) and SELECT(Blue) buttons together then release the buttons and the programmer will return to the preset factory settings.

SPECIFICATION H37XL SERIES 2

Horstmann Controls Limited
Bristol
BS4 1UP

t: 0117 9788 773 - f: 0117 9788

Email: sales@horstmann.co.uk

Website: www.horstmann.co.uk