User manual WORCESTER 28I RSF COMBI

[. . . ] The manufacturers notes must not be taken, in any way, as over-riding statutory obligations. WARNING: This appliance must be earthed and protected by a 3 amp fuse. ELECTRICITY SUPPLY: 230V ~ 50Hz IMPORTANT: To get the best from your Worcester appliance please read these instructions carefully. NOTE: In the event of a fault the appliance should not be used until the fault has been corrected by a competent person. BENCHMARK All CORGI Registered Installers carry a CORGI ID card and have a registration number which must be recorded in your central heating log book. [. . . ] It is advisable to leave one valve permanently set at maximum to prevent the boiler short cycling. 5 SHOWERS, BIDETS, TAPS AND MIXING VALVES Standard hot and cold taps and mixing valves used with the appliance must be suitable for operating at the available mains pressure. Thermostatically controlled or pressure equalising shower valves will guard against the flow of water at too high a temperature. Hot and cold mains fed water can be supplied direct to an overrim flushing bidet subject to local water company requirements. With all mains fed systems the flow of water from the individual taps will vary with the number of outlets operated simultaneously and the cold water mains supply pressure to the property. Flow balancing using `Ball-o-Fix' type valves is recommended to avoid an excessive reduction in flow to individual outlets. For further information contact Worcester Heat Systems Ltd. HOT AND COLD FLOW If the flow of water demanded from both hot and cold service outlets is dependent upon mains supply, it may not be possible in some installations to operate all outlets simultaneously. WATER MAINS FAILURE It is important to note that in the event of a mains water supply failure, no tap water will be available until the mains supply is restored. USE IN HARD WATER AREAS In temporary hard water areas (more than 350mg/litre or 200ppm calcium bicarbonate) it is recommended that a proprietary scale reducer is fitted in the mains cold water connection to the appliance. Installation of a scale inhibitor assembly should be in accordance with the requirements of the local water company. The water hardness can be determined by reference to the local water company. DOMESTIC HOT WATER TEMPERATURE CONTROL By slightly reducing the flow of domestic water from the tap, the delivery temperature will be increased. This is of particular advantage in the winter, for example to increase bath water temperature and to remove heavy grease deposits on plates, etc. Also this will provide an added advantage of reducing the delay before hot water is obtained. 6 VENTILATION OF THE APPLIANCE This is a room sealed appliancem, any ventilation openings in a wall or door must not be obstructed. Do not allow the flue terminal fitted on the outside wall to become obstructed or damaged. If the appliance is fitted in a compartment do not use the compartment for storage purposes unless it conforms to the requirements of BS 6798:1987: Section 6 and the requirements of Section 6. It is essential that the airing space is separated from the boiler space by a perforated non-combustible partition as described in BS 6798:1987. NOTE: Do not place anything on top of the appliance. CIRCULATING PUMP This may be fitted with a speed adjuster. If so it will be factory set at maximum and should not be changed. FROST PRECAUTIONS Your British Gas Engineer, or any service engineer will advise you on suitable frost precautions. For short periods the built-in frost protection of the appliance will be adequate. If the appliance is not to be used for a long period of time and there is a likelihood of freezing, then the appliance should be drained. SERVICE Annual servicing is important in order to ensure continuing high efficiency and long life for your appliance. In the event of any difficulty in making suitable servicing arrangements, Worcester Heat Systems Limited, your British Gas Engineer or other competent persons will discuss regular servicing arrangements and offer a comprehensive maintenance contract. IMPORTANT: Do not touch or adjust any sealed component. WARNING If a gas leak exists, or is suspected, turn off the gas supply to the appliance at the service cock and consult your local British Gas Engineer or service engineer. Extinguish all naked lights. CLEANING Do not use abrasive cleaners on the outer casing. Use a damp cloth and a little detergent. 7 OPERATION OF CONTROLS (See also label on inside of appliance front panel). The appliance is fitted with the following controls: CENTRAL HEATING TEMPERATURE The position of this knob will determine the temperature of the water delivered to the radiators between the `I' and `MAX' position. [. . . ] NOTE: Sunday and Bank Holiday cover is not available IMPORTANT Do not touch or adjust any sealed component 14 YOUR WORCESTER GUARANTEE This appliance is guaranteed against faulty materials or workmanship for a period of twelve calendar months from the date of installation subject to the following conditions and exceptions. 1. That during the currency of this guarantee any components of the unit which are proved to be faulty or defective in manufacture will be exchanged or repaired free of material charges and free of labour charges by Worcester Heat Systems Limited. That the householder may be asked to prove the date of installation, that the appliance was correctly commissioned and, where appropriate, the first 12 month service has been carried out to the satisfaction of Worcester Heat Systems Limited when requested. That any product or part thereof returned for servicing under the guarantee must be accompanied by a claim stating the Model, Serial Number, Date of Installation. [. . . ]