24i, 28i RSF COMBI G.C. NUMBERS NATURAL GAS L.P.G.
EXCELLENCE COMES AS STANDARD Thank you for purchasing a Worcester gas-fired combination appliance. Worcester appliances are made by Worcester Heat Systems and the strictest quality control standards are demanded throughout every stage of production. Indeed, Worcester Heat Systems have led the field in innovative appliance design and performance for more than 30 years.
GENERAL INFORMATION GAS SAFETY (INSTALLATION AND USE) REGULATIONS 1998 It is the law that all gas appliances must be installed by a competent person in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. It is in your interest and that of safety to ensure compliance with the law. 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.
A flow restrictor is fitted within the appliance which limits the hot water delivery rate to a maximum of 8.0 (±15%) litres/minute (1.8 gallons/minute) 24i or 10 (±15%) litres/minute (2.2 gallons/minute) 28i. Hot Water and Central Heating mode: Fig. 1. System Diagram. Gas to water heat exchanger When a demand is made for heating by the system controls (i.e. a programmer or room thermostat). The pump will energise circulating primary water around the heating system and the burner will light.
GENERAL NOTES CENTRAL HEATING SYSTEM During the first few hours of operation of the central heating system, check that all radiators are being heated at an even rate. Should the upper area of a radiator be at a lower temperature than the base of the radiator, it should be vented by releasing air through the venting screw at the top of each radiator. Make sure your installer shows you how to carry out the operation.
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.
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. Air Supply in the Installation Instructions.
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. When the knob is turned anti-clockwise past the ‘I’ position towards the ‘ ’ (Summer Position), then the appliance will operate in the HOT WATER mode only and no heat will be delivered to the radiators.
Fig. 2. 24i/28i Controls.
TO LIGHT AND STOP THE APPLIANCE TO LIGHT THE APPLIANCE Check that the water valves to the central heating circuit are open. Check that the grey needle on the pressure gauge is not below the required pressure. Switch on the mains electricity. The power on indicator will light. Set the room thermostat, if fitted, to maximum. Turn the central heating temperature control knob to ‘MAX’. The burner will light. Set the central heating control knob and the room thermostat, if fitted, to the desired temperature.
TO STOP THE APPLIANCE For Short Periods Turn the central heating temperature control knob fully anticlockwise to the ‘ ’ position. Domestic Hot Water will still be available as required. For Long Periods Switch off the mains electricity. A facia mounted mechanical programmer will require resetting once the mains supply has been disconnected. ELECTRICITY SUPPLY FAILURE If the electricity supply fails the appliance will not operate. Once the supply is restored the appliance will return to normal operation.
APPLIANCE FAILS TO OPERATE More than 30% of all calls made to Worcester Heat Systems to report appliance faults or breakdowns prove to be false alarms, as there is often a simple explanation for the apparent malfunction. So, to help you save time and money – not to mention frustration and inconvenience – please refer to the General Information, Notes and Lighting Instructions ensuring all controls are set correctly.
MAINTAINING YOUR APPLIANCE Your new Worcester gas-fired appliance represents a longterm investment in a reliable, high quality product. In order to realise its maximum working life, and to ensure it continues to operate at peak efficiency and performance, it is essential that your boiler receives regular, competent servicing and annual maintenance checks beyond the initial 12 month guarantee period.
SERVICE CENTRES CONTACT NUMBERS: UK Call Centre UK Call Centre Scotland only Tel. Fax. Fax. 08457 256 206 01905 757536 01506 441 687 OPERATING HOURS: Mon - Fri Sat 8.00am to 6.00pm 8.30am to 1.00pm Please contact our UK Call Centre number where our friendly operators will book your call with one of our team of nationwide engineers.
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. 2.
GUARANTEE REGISTRATION You should complete and return the postpaid Guarantee Registration Card within 14 days of purchase. The card will register you as the owner of your new Worcester appliance and, while this will not affect your statutory rights in any way, it will assist us to maintain an effective and efficient customer service by establishing a reference and permanent record for your boiler. IMPORTANT: SERIAL NUMBER. Copy the number off the Guarantee Card.
