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57 CLEANING THE HEAT EXCHANGER
IMPORTANT
This MUST be done with the heat exchanger and
deposit in a DRY condition.
Prior to cleaning, run the boiler until a flow temperature
o
of 80
C is reached - refer to Frame 51 step 1.
1.
Place a plastic sheet or similar beneath the boiler
and remove all visible loose deposits from the heat
exchanger fins, using a suitable brush.
2.
Take care to clean debris from the ledge inside the
combustion chamber.
58 CLEANING THE CONDENSATE TRAP
1. Pull off the condensate trap from the
bottom panel and carefully empty the
contained water into a receptacle.
2. Pull off the trap from the bottom of the
boiler.
3. Withdraw the trap from the boiler.
4. Thoroughly flush the trap by running high
pressure water through it.
59 RE-ASSEMBLY
Re-assemble the boiler in the following order:
1. Refit the condensate trap.
2. Refit the burner, renewing any damaged or deteriorating
sealing gaskets.
3. Reconnect the ignition and detection leads.
4. Reconnect the fan electrical lead.
5. Refit the fan, engaging it in the bayonet fixing. Ensure
that the 'O' ring seal is in place.
40
SERVICING
6. Refit the fan inlet venturi complete with sensing pipe.
7. Refit the boiler sealing panel.
IMPORTANT.
Ensure that the boiler sealing panel is correctly fitted
and that a good seal is made.
8. Refit the boiler casing.
9. Turn on the gas supply at the gas service cock.
10. Reconnect the electrical supply.
Response SE Combi -
Installation
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