Assessments - 3, GPA: 5 ( )

Fabricante : American Arquivo Tamanho: 315.7 kb Arquivo Nome : Língua de Ensino:

The flue pipe should rise for at least 50 cm. vertically before the inclusion of any bends. If a horizontal run of flue is required this should be kept to the minimum lenght possible and incorporate a rise of 6 cm. per metre of run. A split clip or flange should be provided in the flue close to the draught diverter for ease of servicing. All flue materials should be corrosion resident i.e. stainless steel or galvanised and must include a tested and apprved terminal to BS 5440 part 1. If the flue passes through any combustible marerial measures must be taken to protect against the possibility of fire. All flues must terminate in free air space approx. 1,5 metres from any vertical surface of structure i.e. chimney stacks, roof parapets, etc. If an existing chimney or flue is to be used this should be swept clean and be free of debris before an approved liner is installed and connected to the water heater. 2.1.5 Draught diverter The appliance has been fitted with a flue down draught safety device. The operation of the safeguard is based on the principle of the Thermal Reflux Safeguard (TRS). This TRS can be recognized by the copper coloured spiral that is fitted to the lower edge of the draught diverter. The spiral is connected to a thermostat by means of a capillary tube. The wiring of the thermostat must be connected to the thermocouple circuit. Important The TRS should never be put out of operation. The reentry of flue gasses may cause poisoning. 2.1.6 Electrical connection All electrical connections must be carried out in accordance with IEE regulations by an accredited electrical installation company. The appliance must be connected to the mains by means of a permanent electrical connection. A main switch must be fitted in the phase between the permanent connection and the water heater. The feeder cable must have cores of at least 3 * 1.0 mm2 The connecting clamps for the electricity supply are indicated by the symbol for earth A, N for neutral and L for live. Always check with a voltage tester if the live and the neutral have been connected correctly in the electricity supply. The electricity supply must comply with the requirements below: Electrical Frequency Electrically supply fused to a minimum of 220/240 V AC 50 Hz 5A The maximum power consumption is 25 W See electrical diagram for more information, appendix 1. 2.2 Commissioning 2.2.1 Filling the water heater 1. Close the drain tap. 2. Open the cold water tap to the water heater and open all taps where hot water can be drained for de aeration. The water heater is filled as soon as cold water flows from all taps. 3. Close all hot water taps. 2.2.2 Putting into operation 1. Check to see if the heater is filled with water by running a little to waste from a hot water tap connected to the heater. 2. Check wether the ON/OFF switch is in OFF-position. 3. Ensure gas supply is fully purged of air and turn on gas cock. 4. Ensure that power has been correctly supplied to the unit. Use a voltage tester to check that the live is to “L” and neutral to “N”. (Flame detection is phase sensitive). 5. When first starting, the controller can be in the lock out condition: depress the reset button to free the control. (After manual reset, an extended prepurge/waiting time will occur). 6. Switch the ON/OFF switch into ON position. If the pilot fails to ignite within 25 seconds the controls will go to lock out and the reset button will need to be reset (wait 15 seconds before attempting reset). It may be necessary to repeat the lighting sequence a number of times on the initial light up if all the air has not been purged from the gas supply. 7. The main burner pressure has been factory set but should be checked once normal operation is established (see ‘Ratings’ for settings). 8. Set the temperature regulator to the required setting (see ‘Descalcification’). Note: If during normal use the reset button is pressed the gas valves will close and the automatic ignition controller will start a new sequence after releasing the reset button. 2.2.3 Shut down Note:The water heater should only be turned off when hot water will not be required for an extended period (e.g. holidays); otherwise it should be left on. To shut down put the ON/OFF switch into OFF position. 17 2.3 Removing and replacing the control panel front cover Removing the cover (see figure 7) 1. Remove the screw at the top centre of the control panel. 2. Push the cover upwards until the hooks at the lower end clear the burner access opening and base tray. 3. Pull the lower end of the cover slightly forward. 4. Pull the cover down until the top edge is clear of the control panel and then remove. Replacing the cover (see figure 7) 1. Place the top of the cover inside the rim of the control panel and push it up as far as possible. 2. Position the bottom hooks inside the burner access opening and over the rim of the base tray. 3. Push the cover downwards until the lower hooks engage and the top screw holes align. 4. Repl...

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