HIGHFLOW 400 SERIES APPLIANCE Fanned Flued (RSF) Balanced Flued (BF) Open Flued (OF) G.C. NUMBERS NATURAL GAS L.P.G.
EXCELLENCE COMES AS STANDARD Thank you for purchasing a Highflow 400 Series gas-fired combination appliance. Highflow 400 Series 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 1994 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 a hot water delivery rate to a maximum of 18 (±15%) litres/minute (4.0 gallons/minute). The restrictor is removed by the installer if a cistern feed hot water system is installed. Hot Water and Central Heating mode: When a demand is made for heating by the system controls (i.e. a programmer or room thermostat).
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.
ROOM THERMOSTAT A room thermostat may be fitted for control of the central heating temperature. It will be located in one room of the home. The method of setting a room thermostat varies with the type and manufacture. Refer to the instructions supplied with the room thermostat. THERMOSTATIC RADIATOR VALVES If thermostatic radiator valves are to be fitted to the system then they must conform to the requirements of BS2767:1972.
NOTE: Do not place anything on top of the appliance. 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. In particular, the flue pipe should not pass through an airing cupboard space unless protected by a guard (such as wire mesh) concentrically spaced 25mm (1in), as described in BS 6798:1987.
OPERATION OF CONTROLS The appliance is fitted with either an operating switch or an electronic programmer on the facia panel for the control of domestic hot water and central heating. OPERATING SWITCH One of three positions can be selected: HOT WATER ONLY. The appliance will operate at any time there is a demand for hot water. OFF. Both hot water and central heating will remain off. HEATING AND HOT WATER. Hot water will be supplied when a demand is made.
TO LIGHT AND STOP THE APPLIANCE TO LIGHT THE APPLIANCE (RSF ONLY) See Figs 2 and 3. Set the Operating Switch C (or programmer) to OFF. Switch off the electricity supply. Remove the cabinet front panel by lifting off its mountings. Turn the gas service cock D on. Check that the white needle on the pressure gauge is not below the required pressure (sealed systems only). Switch on the mains electricity indicated by the Standby light G. Turn the central heating temperature control B to max.
OVERHEAT THERMOSTAT Two overheat thermostats E and F are fitted to the appliance which interrupt the electricity supply in the event of overheating. The thermostats are reset manually. If the appliance fails to light, check that the overheat thermostats have not operated by pressing the reset buttons E and F. If the overheat thermostats stop the appliance again call a service engineer.
TO STOP THE APPLIANCE For Short Periods; Set the Operating Switch (or programmer) to OFF as indicated by the Demand light H going out. For Long Periods; Set the Operating Switch (or programmer) to OFF as indicated by the Demand light going out. Switch off the mains electricity indicated by the Standby light G going out. Remove the cabinet front panel by lifting off its mountings. Twist the grey gas control knob clockwise (shown by an arrow) and release. To relight follow the above instructions.
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 Highflow 400 gas-fired appliance represents a long-term 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 HIGHFLOW 400 SERIES 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 or British Gas. 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 Highflow 400 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.
