valutazioni - 2, GPA: 3.5
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3.5 Safety Thermostat 1. Your Baxi Combi HE is fitted with an additional safety devices, which shut down the boiler in the event of the system, boiler or flue overheating. The safety thermostat neon ( ) will light in this instance (Fig. 1). 3.6 Flame Failure 1. The red flame failure neon ( of the burner failing to light, when incomplete lighting of the ) will illuminate in the event burner occurs or blockage of the condensate drain (Fig. 1). To Reset the Safety Thermostat or Flame Failure 1. To reset: Turn the selector fully anti-clockwise against the spring pressure to the ‘Reset’ position for at least two seconds and release (Fig. 3). 2. If after turning the selector to the ‘Reset’ position the boiler does not relight or the safety thermostat or flame failure operates repeatedly, causing boiler shutdown, a fault is indicated. Your Installer or Service Engineer should be contacted as soon as possible. © Baxi Heating UK Ltd 2009 4.0 System Pressure & Temperature 4.1 Central Heating System Pressure 1. The normal operating water pressure is between 1 and 2.5 bar (Fig. 4). If the pressure exceeds 3 bar the safety pressure valve will operate and a fault is indicated (Fig. 6). Contact your installer. Fig. 4 bar01234Normal Pressure 2. It may be necessary to repressurise the system occasionally (Fig. 5). A filling device (the filling loop) will be fitted on the system. If you are unsure of its position, or cannot identify it, consult the installer who fitted the boiler. 3. The filling loop will probably consist of two taps and a separate metal braided hose with connection fittings. 4. Only when repressurising should the hose be connected between the two taps. Ensure that the nuts on the pipe ends are tightened onto the taps. Fig. 5 bar01234Requires Repressurising 5. Fully open one of the taps first, and then while watching the pressure gauge, carefully open the second tap. 6. When the needle on the gauge is indicating 1 or more turn both taps off. 7. Disconnect the metal braided hose from the taps (a small amount of water may be present) and remove it. Keep the hose in a safe place for future use. Fig. 6 bar01234Fault 4.2 Temperature Control 1. Central Heating: The central heating hot water flow temperature can be adjusted between 30° C (± 5° C) minimum and 85° C (± 5° C) maximum. 2. Turn the control knob clockwise to increase the temperature (Fig. 7). In normal winter usage we recommend that the central heating temperature be set at maximum. 3. Domestic Hot Water: The temperature of the domestic hot water can be adjusted by turning the control knob clockwise to increase up to a maximum of 65° C (Fig. 8). 4. The temperature of the water is also dependent on the water flow rate and the temperature of the mains coming into the house. 5. By slightly reducing the flow from the tap the temperature will increase up to the maximum if required. 6. The flow rate can be reduced down to as low as 2.5 litre/min. The boiler will still recognise the need to heat the water. Fig. 7 Central Heating Fig. 8 Domestic Hot Water Temperature Control Temperature Control © Baxi Heating UK Ltd 2009 7 5.0 Clearances 5mm Min 20mm/5mm Min see *NOTE: 450mm 200mm Min 5.1 For your Safety 1. This appliance must have been installed in accordance with the manufacturer’s instructions and the regulations in force. 2. Any modification that may interfere with the normal operation of the appliance without express written permission from the manufacturer or his agent could invalidate the appliance warranty. In GB this could also infringe the Gas Safety (Installation and Use) Regulations. GB - Heating Industry definition meaning England, Scotland, Wales, Northern Ireland, Isle of Man and the Channel Isles 3. Your boiler must not be operated without the casing correctly fitted. 4. Do not interfere with any sealed components on this 780mm boiler. 5. Take note of any warning labels on your boiler. 6. Your boiler should have the following minimum clearances for Safety and Maintenance (Fig. 34):Top - 200mm Bottom - 200mm Left side - 5mm Right Side - 5mm 200mm Min Front - 5mm (In Operation) -450mm (For Servicing) 450mm Min For Servicing Purposes In Operation *NOTE: The boiler can be operated with a clearance of 5mm at the right. This is also sufficient for routine maintenance. However a clearance of 20mm is required if it is necessary to remove the secondary heat exchanger. This should be considered when siting the appliance and in the event of any subsequent alteration in the area of installation. 7. If your boiler is installed in a compartment, do not use it for storage purposes. Do not obstruct any purpose provided ventilation openings. 8. Flammable materials must not be stored in close proximity to your boiler. 9. Avoid skin contact when your boiler is in operation, as some surfaces may get hot e.g. pipework. 10. Ensure that the flue terminal, outside the house, does not become damaged or obstructed, particularly by foliage. 11. It is important that the con...