IDEAL Project Heat 15 Installation And Servicing page 49

65 hEaT ENgINE RENEWaL -
Note. To remove the flow and return pipe connections from the heat exchanger, it may be necessary to cut the pipes above the boiler.
IMpORTaNT
Before starting the removal procedure, protect the gas and
electrical controls with a waterproof sheet or plastic bag.
1. Refer to Frame 52.
2. Drain the boiler from the drain point provided.
3. Remove the fan / venturi assembly and place on one
side. Refer to Frame 53.
4. Remove the burner and place on one side. Refer to
Frame 55.
5. Remove the ignition and detection electrodes. Refer to
Frames 57 and 58.
6. Remove the spark generator. Refer to Frame 59.
7. Remove the gas valve. Refer to Frame 60.
8. Remove the 2 M5 screws retaining the gas valve
mounting bracket and transfer bracket to the new heat
exchanger.
9. Pull the bottom clip, retaining the water flow switch
housing, forward to remove.
10. Lift the housing/return pipe assembly upwards to
disengage from the heat exchanger return pipe elbow.
11. Remove the screw retaining the flow pipe bracket and
remove the bracket from its rear retention slot.
12. Pull the flow pipe to the right to disengage from the heat
exchanger.
13. Remove the condensate rubber pipe. Refer to Frame
61.
14. Remove the LH heat exchanger fixing screw.
15. Pull the heat exchanger to the left to disengage the rear
retention pegs and remove the heat exchanger.
16. Reassemble in reverse order, ensuring the heat
exchanger is correctly positioned. Replace any new 'o'
rings supplied with new heat exchanger and replacing
gaskets or seals if any sign of damage is evident.
66 BOILER sEaLINg paNEL sEaL REpLaCEMENT
1. Refer to Frame 52.
2. Remove the old seal from the casing and
thoroughly clean the casing surfaces.
3. Fit the new seal, ensuring the bottom joint
provides an air tight seal.
5. Reassemble in reverse order.
6. Check operation of the boiler. Refer to
Frames 41 & 42.
Note. Ensure that the boiler front panel is
correctly sealed, compressing the seal
to make an airtight joint.
Project Heat -
Installation and Servicing
SERVICING
Refer also to Frame 10 - 'Boiler Exploded View'
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17. Ensure the trap/siphon is filled with water. Refer to Frame 61.
18. Refill the boiler.
19. Check operation of the boiler. Refer to Frames 41 & 42.
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49