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 assembly and before the ignition and detection electrodes are replaced.

25.Check the operation of the boiler. Refer to Frame 52.

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SERVICING

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IDEAL INDUSTRIES HE15, HE24, HE18, HE12 manual Servicing Heat Exchanger Replacement
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HE12, HE15, HE18, HE24 specifications

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