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Производитель: IDEAL INDUSTRIES Размер: 3.37 mb Название файла: Язык инструкции:

Face mask supplied with the spare part. . Gloves supplied with the spare part. 1 Damp down the combustion chamber area containing the insulation boards. 2. Remove the insulation boards. The replacement boards are supplied in a plastic bag. This bag should be retained and the discarded boards should now be placed into it. 3. Sweep any dampened particles and place in the plastic bag. 4. Fit new insulation boards. 5. Remove the gloves and face mask and place them in the plastic bag. 6. Wash your hands and any areas of skin which may have come into contact with any of the particles from the insulation board. 7. Seal the plastic bag and dispose of it and its contents into a commercial tip. 36 CONTROL SENSOR POTENTIOMETER ASSEMBLY 1. Prise the front cap from the thermostat knob. 2. Carefully loosen the brass retaining nut one full turn anticlockwise 3. Gently pull the thermostat knob from the potentiometer. When reassembling ensure the arrow on the body is lined up in the OFF position. 4. Remove the back nut and brass washer securing the thermostat knob to the panel. 5. Undo and remove the 2 screws securing the control box front panel. Carefully lift it up and lower it. 6. Remove the terminal plugs from the back of the potentiometer. 7. Undo the purse clips holding the wires from the potentiometer to the PCB then pull the wires out. 8. Remove the connections from the PCB. 9. Fit the new potentiometer and reassemble in reverse order. Ensure that the connections to the back of the potentiometer 37 PC BOARD S4561B1047 1. Remove the lower front panel. 2. Undo and remove the 2 screws securing the control box front panel. Carefully lift it up and lower it. 3. Pull off the 2 plugs and the 2 push-on connections from the board. The board can now be removed by squeezing in the retaining barbs. 4. Fit the new board and reassemble in reverse order, ensuring that the push-on connections are correctly fitted, as follows (from left to right): Earth - flame detector lead. 1. Remove the lower front panel. 2. Undo and remove the 2 screws securing the control box front panel. Carefully lift it up and lower it . 3. Remove the 4 plugs from the board. The board can now be removed by squeezing in the retaining barbs. 4. Reassemble in reverse order. 38 PC BOARD W4115A1020 are made either to the top 2 tags or the bottom 2 tags and that the lug on the body of the potentiometer locates through the hole in the front panel of the control box. Also ensure that the potentiometer is rotated fully anticlockwise and clicks before commencing the reassembling. PCB Retaining barbs Con 1910 Plugs Plugs Con 1500 PCB Plug Potentiometer Backnut Thermostat knob Earth connection Flame detector connection PCB Retaining barbs Con 1910 Plugs SERVICING FAULT FINDING 40 BOILER CONTROL Before attempting any electrical fault finding ALWAYS carry out feature reduces component wear and ensures continuous the preliminary electrical system checks as detailed in the trouble free operation. The anti-cycle duration is 4 minutes. Instructions for the British Gas Multimeter or other similar If the system pump, with a maximum current of 3A, is commercially available meter. connected to the boiler pump terminals, pump overrun will be The preliminary electrical system checks are the FIRST in operation when the demand for heat is satisfied, and will electrical checks to be carried out during a fault finding continue to run for 6 minutes. procedure. Frost protection is inbuilt with the boiler. If the flow On completion of any service/fault finding task which has temperature falls to approximately 5 oC then the boiler will required the breaking and remaking of electrical connections operate until the flow temperature exceeds 18 oC. Note that it the following checks MUST be repeated: is designed to protect the boiler and may not protect remote parts of the system. Neither the pump overrun nor the inbuilt a. Earth continuity frost protection will operate if the boiler thermostat is switched OFF. b. Polarity The gas valves operate on High/Low and Off principle. The c. Resistance to earth boiler will start at low rate and after 1 minute the high rate gas valve will open. On reaching the set point, determined by the Detailed instructions on the replacement of faulty components user, the boiler will go to low rate and when the temperature are contained in the ’Servicing’ section of these Installation & reaches the set point plus 3 oC the low rate gas valve will Servicing Instructions. close. Should the temperature fall below the set point the boiler will go back to the high rate. GENERAL INFORMATION Anti-cycle will be in operation each time the boiler thermostat is The full sequence control enables a single ignition attempt satisfied and a rapid demand for heat is required. The same lasting about 5 seconds and will go to lockout if detection situation will occur if the external controls operate rapidly. This does not take place. FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDIN...

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