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Cleaning (customer)
Cleaning and maintenance
2.5.6
Clean flue gas recirculator (optional)
Clean flue gas recirculation piping
Remove the shut-off plug for the flue gas recirculation.
Fig. 2-45: Shut-off plug
Clean the pipe of the flue gas recirculation with
downward strokes of a brush.
Fig. 2-46: Pipe
Inspect the integrity of the seal on the shut-off plug and
replace it if necessary.
Fig. 2-47: Seal
CAUTION!
Avoid operation with damaged seals
Never operate the boiler with damaged seals.
Otherwise, leak air is sucked in, disturbing the
combustion process and causing increased wear.
Always replace seals as soon as they are
damaged.
Re-install the shut-off plug.
