33
BOXER
combination boiler -
Installation and Servicing
SERVICING
48 CLEANING THE HEAT EXCHANGER
1.
Remove the combustion chamber (Refer Frame 47) and
fan assembly (Refer to Frame 45).
2.
Disconnect the electrical leads from the overheat
thermostat and from low water pressure switch.
3.
Unscrews the 3 screws and remove the front panel of the
collector hood.
4.
Remove the heat exchanger baffle by pulling forwards.
5.
Brush off any deposits using a soft brush.
6.
Re-assemble in reverse order.
3
49 REPLACEMENT OF COMPONENTS
GENERAL
When replacing ANY component
1.
Isolate the electricity supply.
2.
Turn off the gas supply.
3.
Remove the casing, refer to Frame 41.
4.
If it is necessary to drain the boiler, refer to
Frame 44.
After replacing ANY component check operation of the boiler
including gas soundness, gas rate and combustion test.
IMPORTANT.
When work is complete, if the sealing panel has been
removed, it must be correctly refitted - ensuring that a good
seal is made.
THE BOILER MUST NOT BE LEFT IN AN OPERATIONAL CONDITION IF THE SEALING CASING IS NOT FITTED
SER
VICING