Keston Combi 35kw User Manual download pdf (Page 52)

SERVICING

Keston Combi - Installation and Servicing

1. Refer to Frame 45.

2. Drain the boiler. Refer to Frame 60.

3. Remove condensate trap/siphon. Refer to Frame 56.

4. Remove the diverter valve actuator. Refer to Frame 55.

5. Remove the 2 allen screws securing the plate heat

exchanger to the brass housings.

6. Manoeuvre the plate heat exchanger out of the top LH or

centre of the controls area.

DHW PLATE HEAT EXCHANGER REPLACEMENT

PUMP HEAD REPLACEMENT

1. Refer to Frame 45.

2. Drain the boiler. Refer to Frame 60.

3. Disconnect the electrical plug from the

pump.

4. Remove the 4 Allen screws retaining the

pump head.

5. Remove the pump head.

6. Fit the new pump head.

7. Reassemble in reverse order.

8. Rell the boiler. Refer to Frame 22.

9. Check operation of the boiler. Refer to

Frame 36.

7. Fit the new plate heat exchanger, using the new o-rings

supplied.

Note. The mounting pins are offset so the correct position

can be dened from the location of the holes on the brass

mounting.

8. Reassemble in reverse order.

9. Rell the boiler. Refer to Frame 22.

10. Check operation of the boiler. Refer to Frame 36.

SERVICING

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Keston Combi 35kw User Manual Page 52