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6
Cleaning/Maintenance
6.1 Boiler
The heat exchanger, flue pipe, and chimney must be cleaned regularly to remove accumulated creosote and ash. Ensure that
the heating exchanger, flue pipe, and chimney are cleaned at the end of the heating season to minimize corrosion during the
summer months. The appliance, flue pipe, and chimney must be in good condition.
Regular cleaning and maintenance of the boiler system is the customer's most important job for years of trouble-free opera-
tion and to obtain the greatest possible output with the best efficiency.
Here the cleaning intervals for chip material are listed with clinging bark – 0.8% ash content. The cleaning intervals may vary,
depending on the fuel, the amount of fine matter and the operating method.
CAUTION – RISK OF INJURY: Before beginning cleaning work, put the facility out of operation. Be absolutely sure to wear
protective gloves, protective eyewear if required and use the cleaning utensils that come with the facility (danger of blow-
ups, burns and getting crushed)!
After approx. 300 operat-
ing hours:
Remove ash from the ex-
haust gas collector.
After approx. 1000 operating hours:
Unplug the plug from the exhaust gas
fan, unscrew butterfly nuts, pull out
motor with impeller and clean with
broom or wire brush.
CAUTION: DANGER OF INJURY – be
absolutely sure to switch off master
switch.
After approx. 300 operating
hours:
Take off and clean light bar-
riers and inspection windows
on the firing block.
Remove dust and ash depos-
its in the openings.
With pneumatic pipe cleaning system, after
approx. 600 operating hours; without pneumatic
pipe cleaning system, after approx. 300 operat-
ing hours:
Open boiler door and clean all the heat ex-
changer pipes (9) with wire cleaning brush. Use
the stoker to carefully draw to the front the fly
ash lying in the rotation combustion chamber (8).
IMPORTANT:
With pneumatic pipe-cleaning system, disconnect
the compressed air line before opening the boiler
door – danger of injury!
After approx. 300 oper-
ating hours:
Open lid across from
feed auger and clear the
slots in the grate (5).
After approx. 1000
operating hours:
Clean recirculated flue
gas line.
After approx. 100 operating hours:
Open ash pan doors and empty ash
containers.
With automatic de-ashing (optional),
cleaning interval of approx. 1000 op-
erating hours.
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9
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Summary of Contents for PYROT KPT 1250
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