Ideal Boilers HE15, Установка и обслуживание

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47
SERVICING
icos system -
Installation and Servicing
24
Interpanel
Flow pipe
securing bracket
nm8
0
4
5
28
15 11 8
Return pipe
securing bracket
18
19
20
27
22
Overheat
thermostat
Control
thermistor
Flow pipe
26
Spring clip
12
17
13
14
Refer also to Frames 7 & 8 - 'Boiler exploded view'.
IMPORTANT
Before starting the removal procedure, protect the gas and
electrical controls with a waterproof sheet or plastic bag.
1. Refer to Frames 50.
2. Remove the boiler front, sealing and bottom panels.
Refer to Frames 42 & 43.
3. Drain the boiler. Refer to Frame 68.
4. Remove the control box and place on one side. Refer to
Frame 62.
5. Remove the fan / venturi assembly and place on one
side. Refer to Frame 45.
6. Remove the burner and place on one side. Refer to
Frame 46.
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. Refer to Frame 26.
10. Remove the turret from the boiler. Refer to Frame 26.
11. Release the silicon tubing from the sampling point.
12. Release the electrical connection to the dry fire
thermistor.
13. Release the M5 nut retaining the flue casting spring clip
and remove the spring clip.
14. Undo the 2 M5 x 10 flue spring clip retaining bracket
screws and remove the bracket.
15. Remove the M5 x 10 screw retaining the flue casting.
16. Remove the flue casting.
70 HEAT EXCHANGER REPLACEMENT
17. Remove the automatic air vent. Refer to Frame 67.
18. Remove the edge clip securing the dry fire thermistor
wiring.
19. Remove the blind grommet to gain access to the return
pipe securing bracket.
20. Remove the M5 screw and remove the return pipe
securing bracket by sliding forwards.
21. Remove the overheat thermostat and the control
thermistor. Refer to Frame 55.
22. Remove the securing pin to release the flow pipe.
23. Remove the condensate 'S' trap. Refer to Frame 47.
24. Remove the 2 M5 screws securing the interpanel to the
back panel.
25. Slide the heat exchanger and interpanel assembly upward
to disengage and remove from the casing, complete with
the return pipe.
26. Remove the 2 M6 countersunk screws, remove the
interpanel and transfer to the new heat exchanger.
27. Remove the M5 screw and remove the flow pipe securing
bracket.
28. Remove the flow pipe and transfer to the new heat
exchanger.
29. 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 61) before the burner and fan / venturi assembly
and before the ignition and flame detection electrodes are
replaced.
30. Refill the boiler. Refer to Frame 30.
31. Check operation of the boiler. Refer to Frame 50.
SER
VICING
200214-11.pmd 17/11/2006, 09:36 47