Instruction d'utilisation Bosch Appliances BENCHMARK 40800

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Central Heating
When a demand is made for heating by the system controls
MAINTAINING YOUR
(i.e. a programmer or room thermostat). A pump will energise
circulating primary water around the heating system and the burner,
APPLIANCE
after a few seconds, will light. The heat output from the appliance in
this mode has been factory set to give maximum output or as reset by
your installer. The appliance will operate as necessary to main

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SERVICE CENTRES GENERAL INFORMATION GAS SAFETY (INSTALLATION AND USE) CONTACT NUMBERS: REGULATIONS 1998 It is the law, in GB, that all gas appliances must be installed by a competent person in accordance with the above regulations. Failure to UK Contact Centre Tel. 08457 256 206 install appliances correctly could lead to prosecution. It is in your interest and that of safety to ensure compliance with the law. The UK Contact Centre Fax. 01905 757536 manufacturer’s notes must not be taken, in any

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OPERATION OF CONTROLS BOILER HEATING TEMPERATURE Fig. 1. Controls. CONTROL The position of this control will determine the temperature of the water delivered from the appliance between the start of the dial as indicated thus ' ' and the fully on position i.e. when the control is turned fully clockwise. When the knob is turned fully anti-clockwise to the ‘O’ position the appliance is off. BOILER RESET BUTTON If the lockout light is on or flashing, turn the temperature control fully anticlockwise

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FROST PRECAUTIONS 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. TO LIGHT AND STOP THE The Worcester Technical Helpline will advise you on suitable frost precautions. The boiler has an in-built frost thermostat which will APPLIANCE protect the appliance should the temperature of the boiler drop below approximately 10°C. INDICATOR LIGHTS SERVICE Boiler demand : System is calling for heat Annual servicing