Ideal Boilers Procombi Exclusive 24 Installation & Servicing Instructions Manual

Contents

Ideal Boilers Procombi Exclusive 24 Installation & Servicing Instructions Manual Manual pdf 48 page image

48SERVICINGProcombi Exclusive - Installation and Servicing1. Refer to Frame 39.2. Drain the boiler. Refer to frame 58.3. Unplug the electrical connection.4. Using a suitable tool, pull out the retaining clip.5. Carefully pull the thermistor upwards to remove.6. Fit the new thermistor and re-assemble in reverse order.7. Refill the boiler.8. Check the operation of the boiler. Refer to Frames 28 & 29.63 RETURN ThERMIsTOR REpLaCEMENT64 hEaT ENgINE RENEWaL Refer also to Frame 5 - ‘boiler Exploded View’IMpORTaNT - Before starting the removal procedure, protect thegas and electrical controls with a waterproof sheet or plastic bag.1. Refer to Frame 39.2. Drain the boiler. Refer to Frame 52.3. Remove the fan / venturi assembly and place on one side.Refer to Frame 40.4. Remove burner and place on one side. Refer to Frame 42.5. Remove the ignition and detection electrodes. Refer toFrames 43 & 44.6. Remove the spark generator. Refer to Frame 45.7. Remove the gas valve. Refer to Frame 46.8. Remove the expansion vessel. Refer to Frame 65.9. Remove the flow thermistor. Refer to Frame 62.10. Remove the 2 M5 screws retaining the gas valve mountingbracket and transfer bracket to the new heat exchanger.11. Undo the inlet pipe union nut, swing the pipe and pull downto remove from heat exchanger.12. Pull out the flow pipe spring clip, pull the pipe down toremove from heat exchanger.13. Remove the condensate rubber pipe from the sump.14. Remove the two heat exchanger fixing screws.15. To remove the Heat exchanger slide out of location bracket.16. If replacement sump required: Rotate heat exchangerassembly 180º. Place new sump onto heat exchanger,ensuring correct orientation and seal is in place. Thengently apply pressure to the base of the sump at each tabfixing point and engage tabs onto the heat exchanger.17. Reassemble in reverse order, ensuring the heat exchanger LHretaining bracket is correctly positioned. Replace any new ‘o’rings supplied with new heat exchanger and replacing gasketsor seals if any sign of damage is evident. When replacing thespring clips located on the return pipe connection, ensure clipis oriented to correctly match connecting pipe diameters.18. Ensure the trap/siphon is filled with water. Refer to Frame48.19. Refill the boiler.20. Check operation of the boiler. Refer to Frames 28 & 29.141111121012133416Shown as 180º positionsERVICINg