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Resumen del manual
If necessary the burner pressure of the main burner should be reset. 2.8.3 Inspection of the internal waterside surfaces Formation of lime scale depends on the quality and quantity of the water used. In addition higher water temperatures lead to more deposit in the appliance. A temperature setting of 60°C is recommended in order to keep the calcification at a low level. Decalcification should be attempted with the proper means. For extensive information a decalcification instruction is available. 2.8.4 Spare parts To be able to order spare parts it is important to note the type of appliance as well as the serial number of the appliance. Based on this information the data concerning the spare parts can be determined. 2.9 Inlet combination Not applicable in U.K. and Ireland. Figure 11- Mounting burner-set AOS 0488 2.10 Fault finding In case of failure the following should be checked. 2.10.1 Safety thermostat All appliances have been fitted with a safety thermostat that shuts off the gas supply when the water temperature is too high. The safety thermostat remains activated until the water temperature drops below the safety temperature. The water heater must be reignited manually. The regulation thermostat should be set to a lower water temperature. If the pilot is extinguished repeatedly at higher temperatures than normal, this indicates that the safety thermostat is operating. 2.10.2 Flue down draught safety device If the flue tube safety device has switched off the appliance, the appliance can be put back into operation through the normal procedure. If the flue tube safety device repeatedly puts the appliance out of operation then this points to problems with the flue. The only remedy is to determine the cause of the problem (for instance a blocked chimney) and to solve the problem. 2.10.3 Hot water temperature too low 1. Check the setting of the temperature control knob. 2. Check whether the pilot is alight. If necessary ignite (see “Putting into operation”). 3. Check whether there are any leaks or open taps. 4. Is the gas supply adequate? Check and correct if necessary. 5. Perhaps the hot water consumption is higher than was originally calculated. 6. Check whether the cold water inlet has been correctly connected. 7. Check the thermostat sensor for scale build up. 2.10.4 Hot water temperature too high Check whether the control thermostat is set too high. 2.10.5 Possible water leakage 1. Check whether the drain tap is fully closed. 2. Check whether all water connections are water tight. 3. Check whether the possible water leakage could be caused by condensation. 2.11 Gas smell Warning Immediately shut the main gas tap. Do not light any fire or switch on any lights, do not use any electrical switches or alarm bells. Open windows. Thoroughly inspect all gas connections and, if the gas smell persists, alert the local gas company and/or your installer. 2.12 Condensation If the appliance is filled with cold water or if the hot water consumption is very high, condensation of flue gasses will occur on the cold surfaces of the combustion chamber and the flue tube. The water drops will fall on the burner and cause a sizzling noise. This is a normal phenomenon that will disappear as soon as the appliance reaches its normal operating temperature. Important warning The applicance should NEVER be taken into operation with a closed cold water supply! Provision should always be made for expansion. 3. FOR THE USER 3.1 Commissioning Warning Installing and commissioning (for the first time) of this water heater should only be carried out by a qualified competent heating engineer. 3.1.1 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 drain taps. 3.1.2 Putting into operation 1. Check whether the device has been filled with water and whether the gas supply to the water heater is open. 2. Turn the temperature control knob clockwise and place the control knob in the ‘PILOT’-position (X). 3. Remove the outer and inner door of the combustion chamber. 4. Keep the control button pushed-in and press the piezo-ignitor several times until the pilot burns (see Figure 6). 5. Keep the control button (X) pushed- in for approximately 20 seconds. After releasing the button the pilot should remain burning. If the pilot extinguishes you should wait 5 minutes before repeating the ignition procedure. 6. Subsequently remount the inner and outer door; see “Mounting the inside door”. 7. Turn the control button to the ‘ON’ ( ) position. 8. Place the temperature control button in the correct position, preferably position 4 (approximately 60°C). The appliance will now operate fully automatically. 3.1.3 Use The appliance is under water supply pressure (with a maximum of 8 bar). The amount of cold water that is added is equal to the amount of hot wat...
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