Halstead Wickes Combi 102 Manual Transfer

1 ISSUE 07/05 79 WICKES COMBI BOILERS If told that you could install a complete central heating and domestic hot water system by purchasing only a gas powered boiler with a balanced flue, a quantity of copper piping with fittings, and radiators with fittings, you could well be surprised. Quite reasonably you could ask about the hot water storage cylinder, the feed and expansion tank normally put in the loft, the pump, the three port diverter valve and other component parts that other central heating and hot water systems seem to need. The answer to your queries would be that with our Combi Boiler you do not need a hot water storage cylinder which takes up a lot of space, you do not need a feed and expansion tank up in the loft, and components such as the pump, diverter valve and other necessary controls are already built into the boiler so that all electrical work apart from the mains supply connection is complete. KEEP INFORMED Look for other Good Idea Leaflets that could help you with your current project. Check that your Good Idea Leaflets are kept up to date. Leaflets are regularly changed to reflect product changes so keep an eye on issue dates.

If you would like to be put on our mailing list for the Wickes booklet, call our Freephone number which is: Visit our website at The answer to your queries would be that with our Combi Boiler you do not need a hot water storage cylinder which takes up a lot of space, you do not need a feed and expansion tank up in the loft, and components such as the pump, diverter valve and other necessary controls are already built into the boiler so that all electrical work apart from the mains supply connection is complete. Specification: Wickes Combi 102:- Maximum Heat Output (Central Heating) 102,400Btu/hr Maximum Heat Output (Domestic hot Water) 102,400Btu/hr Major features are: British Gas service listed which also means guaranteed spare parts availability for a minimum of 10 years Fully automatic ignition to burner. No pilot light needed Supplied with time clock Telescopic flue included in pack Can be flued vertically Flue outlet can be fully fitted from inside the property so ideal even for high rise buildings Recessed control panel with clearly marked controls 2 years parts and labour guarantee British built This type of boiler - the combination - is not new. It has been more popular on the continent than in the U.K., but is now being fitted more frequently as an alternative to the conventional wall mounted boiler. There are two major differences between this boiler and it s better known counterparts. On the central heating side you still have a fully pumped system but all the heated water which circulates around is sealed in totally.

There are no open vents and therefore no need for a feed and expansion tank in the loft. The boiler itself incorporates an 8 litre capacity expansion tank but again this is part of the sealed unit. Domestic hot water is produced on demand only by the use of a highly efficient plate heat exchanger. When a hot tap is turned on, water from the sealed central heating circuit is automatically heat boosted and is diverted2 to the sector of the domestic hot water heat exchanger.

Fresh cold water from the rising main or other supply source passes through the heat exchanger where it is heated and fed to the tap, which has been turned on. Automatic priority is given to domestic hot water over water to radiators. When the tap is closed again the central heating water is returned to its normal circuit. Although over simplified this is how our combi boiler works.

In every respect the boiler and connections etc. Conform to Gas and Water Research Council requirements. So far as the balanced flue is concerned the boiler is classed as a room sealed category 1N appliance.

The flue is fan assisted to expel exhaust gases and pull in fresh air for combustion. It can be rotated through 360. The flue assembly supplied with the unit has an effective legth from the casing of the boiler to the external face of the wall of 632mmto the rear or 590mm to either side. Additional flue extensions are available which have a useable length of 676mm. The maximum permissible length for the Combi 102 is 2000mm. It is also possible to add additional elbows to the flue (SKU by special order)but remember that for each 90 elbow added you must reduce the maximum allowed length by 767mm and by 384mm for 45 elbows.

For the most difficult siting problems it is possible to take the flue vertically using a vertical flue (special order) up to a maximum height of 3851mm for the Combi 102. This is measured from the top of the boiler to the inlet cowl. Diagram A shows flue options. It is important to read the instruction manual supplied with the boiler before you start the installation to ensure that you meet all regulations regarding the position of the flue terminal.

This will come from your existing rising main provided that the pressure is adequate which means a absolute minimum of 0.3 bar, giving a flow rate of 2.8 litres per minute. For optimum performance 1 bar will be required. The maximum is a pressure of 10 bar. In the vast majority of cases rising main pressure is well up to the minimum level but if in doubt your local water regulations, all - electrical Boiler & Appliance work must Manuals authority will advise you.

Conform to BS 7671 the current IEE Wiring Regulations, and Part P of SPECIAL TOOLS Building Regulations. You are advised to check with your local For the boiler installation you will authority s Building Control require no special tools but you will Department, or an Authorised find a tube cutter invaluable. A pipe Competent Person, before starting. If bending spring will also be useful. In any doubt about electrical work, For making soldered joints you must contact a qualified electrician. Have a blowtorch.

Determining the position of the boiler. PROJECT SHOPPING LIST 2. Selection and positioning of radiators. Selection of pipe sizes and routes.

Installation procedures. Below is a list of the products in the range. Based on the information provided you can produce your own shopping list. Product Description Code Wickes Combi Combi Terminal Guard Combi Filling Loop Room Thermostat Combi System On/Off Radiator Valve Combi System Lockshield Valve Thermostatic Radiator Valve C/H System Inhibitor C/H System Cleanser Size 1 Tube Cutter mm Bending Spring mm Bending Spring mm Copper Tube 22mm Copper Tube The products available for a central heating and domestic hot water system are:- Fittings NOTE.

Halstead Wickes Combi 102 Manual Transfer Machine

The On/Off valves and the single lockshield valves listed above conform to B.S.2767, Part 10, and must be used with the Combi boiler installation. Use either these On/Off valves paired with lockshield valves or combine T.R.V.s and the lockshields.

At least one radiator - normally the bathroom - should be fitted with a permanently open lockshield valve at each end. The boiler itself is supplied complete with detailed fitting instructions, which cover the flue installation as well. BEFORE YOU START STATUTORY REQUIREMENTS: It is the law that all gas appliances are installed by a CORGI registered fitter, in accordance with the Gas Safety (Installation and Use) Regulations In addition to these WORK SEQUENCE 1. DETERMINING THE BOILER POSITION The location chosen for the boiler is governed by a number of factors:- (a) The position of the flue must be such that exhaust gases are safely dispersed into the open air and that fresh air is available for combustion. British Gas have produced a guide - Diagram B - which gives distances which the terminal of a balanced flue must be away from obstructions, combustible materials, and other parts of the building which may affect its performance. The recommendations should be adhered to completely. (b) The boiler itself wall hung must have clearance all round to allow space for air circulation and for servicing.

The minimum recommended space for the boiler is 1300m height, 465mm width and 325mm depth. Actual boiler size including flue at the top is 900mm high, 455mm wide and 326mm deep.

If the boiler is being placed in a cupboard an addition 10mm depth should be allowed for normal operation and 450mm for installation and servicing. (c) Because of the electrical components in the boiler body it should not be located in a bathroom unless totally out of the reach of anyone in the bath or a shower. (d) As a room sealed unit it can be located in almost any room even in an understairs cupboard for example, (provided that the cupboard is modified for this purpose. B.S.5376:2:1976 gives modification details).

Even a garage is perfectly suitable although more often than not, the kitchen is the most favoured place.