Évaluations - 2, GPA: 4
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Facilité d'utilisation
12. Pull the display unit forward to remove. 13. Push the new display unit into position. 14. Reassemble in reverse order. 15. Check the operation of the boiler. Refer to Frame 52. Ecl 2419 Mounting brackets Control box 11 nm7804 Ecl 2438 4 SERVICING icos - Installation & Servicing 41 SERVICING 1. Refer to Frame 52. 2. Remove the boiler front and sealing panels. Refer to Frames 45 & 46. 3. Pull off the silicon tube from the thermistor housing. 4. Remove the aluminium nipple securing the thermistor to the flue manifold. 5. Withdraw the thermistor. 6. Unplug the inline electrical connector. 7. Fit the new thermistor, using the gasket supplied. 8. Reassemble in reverse order. 9. Check operation of the boiler. Refer to Frame 52. 1. Refer to Frame 52. 2. Remove the boiler front and sealing panels. Refer to Frames 45 & 46. 3. Pull off the electrical leads from the thermostat body. 4. Pull the thermostat and clip from the pipe. 5. Fit the new thermostat, ensuring that the clip is securely holding the thermostat to the flow pipe. 6. Reassemble in reverse order. 7. Check operation of the boiler. Refer to Frame 52. 63 OVERHEAT THERMOSTAT REPLACEMENT 64 FLUE THERMISTOR REPLACEMENT nm8746 nm8747 3 4 SERVICING SERVICING 65 COMBUSTION CHAMBER INSULATION REPLACEMENT SERVICING The insulation boards used in the combustion chamber of this product are made of high temperature glass fibres with a binder of organic and inorganic materials. Ideal Stelrad Group recommend that, for your own comfort and safety and to comply with good working practice, the procedure described below is followed: 1. Refer to Frame 52. 2. Remove the boiler front and sealing panels. Refer to Frames 45 & 46. 3. Remove the fan / venturi assembly. Refer to Frame 54. 4. Remove the burner. Refer to Frame 48. 5. Remove the ignition electrode. Refer to Frame 56. 6. Remove the flame detection electrode. Refer to Frame 52. 7. Remove the front and rear ionisation probes. Prior to removal of the board the following protective equipment should be worn: • Face mask supplied with the spare part. • Gloves supplied with the spare part. Fit insulation in the following order: 1. 2. 3. 4. 8. Damp down the combustion chamber area containing the insulation boards. 9. Remove the split pin and washer from the RHS of the combustion chamber. 10. 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. 11. Sweep any dampened particles and place in the plastic bag. 12. Fit new insulation boards. Note. The boards are designed to be interlocking and should be fitted as shown. 13. Fit the new split pin and washer in the RHS of the chamber. 14. Remove the gloves and face mask and place them in the plastic bag. 15. Wash your hands and any areas of skin which may have come into contact with any of the particles from the insulation board. Note. Seal the plastic bag and dispose of it and its contents into a commercial tip. 16. Reassemble in reverse order, remembering to re-fit the ionisation probes first. 17. Check operation of the boiler. Refer to Frame 52. Rear Front Combustion chamber LH Side RH Side nm8748 7 6 5 Rear. Left Hand Side. Front. Right Hand Side. icos -Installation & Servicing icos - Installation & Servicing 43 SERVICING 66 HEAT EXCHANGER REPLACEMENT Refer also to Frame 10, 'Boiler exploded view'. 1. Refer to Frame 52. 2. Remove front, bottom and sealing panels. Refer to Frames 45 & 46. 3. Remove the control box and place to one side. Refer to Frame 61. 4. Attach a length of hose to the drain nipple on the bottom of the heat exchanger and drain down the boiler. 5. Remove the fan assembly and place to one side. Refer to Frame 54. 6. Remove the burner and place to one side. Refer to Frame 48. 7. Remove the ignition and detection electrodes. Refer to Frames 56 & 57. 8. Remove the spark generator. Refer to Frame 58. 9. Release the flue from the turret. 10. Remove the turret from the boiler. Refer to Frame 15. 11. Release the silicon tubing from the sample point. 12. Release the electrical connections to the flue thermistor. 13. Unscrew the M5 x 10 screw retaining the top manifold flue casing. 14. Remove the top half of the flue manifold from the appliance. 15. Undo the 4 M5 x 10 screws securing the bottom flue manifold casting. 16. Pull the CH return pipe, CH flow pipe and the bottom flue manifold together up and out of the heat exchanger. 17. Remove the condensate 'S' trap. Refer to Frame 49. 18. Unscrew the 2 M5 x 10 screws from the inter panel. 19. Slide the heat exchanger and inter panel assembly upwards to disengage and remove from the casing. 20. Transfer the interpanel to the new heat exchanger. 21. Reassemble in reverse order, replacing gaskets or seals if any sign of damage or deterioration is evident. Note. The heat exchanger is supplied with new combustion chamber insulation boards. These should be fitted (refer to Frame 65) before the burner and fan assembl...
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