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13.6.1 Flue Fan Maintenance:
If the flue fan start to run faster to keep the correct under pressure in the boiler, we need to clean, either
the hose between the pressure transmitter and the boiler or the flue fan wheel itself.
Since the XXL boiler always need to be installed with a multi
cyclone, the flue fan are mostly placed on the side of that one.
There can be 2 reasons to clean the flue fan.
1.
The Flue fan are vibrating
2.
It have to run at high speed to keep the under
pressure in the boiler.
On the side of the housing, you can find a cleaning door, and
with the correct brush it is easy to clean the wheel proper trough
the on.
Cleaning door