Ideal Boilers i-mini 24 Installation And Servicing

Contents

48SERVICINGi-mini - Installation and Servicing14111210965 hEaT ENgINE RENEWaLRefer also to Frame 5 - ‘Boiler Exploded View’IMpORTaNTBefore starting the removal procedure, protect the gas and electrical controls with a waterproof sheet or plastic bag.13. Remove the condensate rubber pipe. Refer to Frame 50, no. 2.14. Remove the two heat exchanger fixing screws.15. Remove the Heat exchanger, slide out of location bracket.16. If replacement sump required: Rotate heat exchanger assembly180º. Place new sump onto heat exchanger, ensuring correctorientation and seal is in place. Then gently apply pressure tothe base of the sump at each tab fixing point and engage tabsonto 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 clip isoriented to correctly match connecting pipe diameters.18. Ensure the trap/siphon is filled with water. Refer to Frame 54.19. Refill the boiler. Refer to Frame 23.20. Check operation of the boiler. Refer to Frames 29 & 30.1. Refer to Frame 40.2. Drain the boiler. Refer to Frame 54.3. Remove the fan / venturi assembly and place on one side.Refer to Frame 41.4. Remove the burner and place on one side. Refer to Frame 53.5. Remove the ignition and detection electrodes. Refer toFrames 45, 46 & 49.6. Remove the spark generator. Refer to Frame 47.7. Remove the gas valve. Refer to Frame 48.8. Remove the expansion vessel. Refer to Frame 66.9. Remove the flow and return thermistor. Refer to Frame 44and 67.10. Remove the 2 M5 screws retaining the gas valve mountingbracket and transfer bracket to the new heat exchanger.11. Undo the pump union nut and remove pipe.12. Remove the two retaining spring clips and remove pipes.91216Shown as 180º positionsERVICINg