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Vitoflex 300-UF Service & Maintenance
Maintenance
Cleaning
Boiler
The heat exchanger, flue gas pipe, and chimney must be
cleaned regularly to remove accumulated creosote and ash.
Ensure that the heat exchanger, flue gas pipe, and
chimney are cleaned at the end of the heating season
to minimize corrosion during the summer months. The
appliance, flue gas pipe, and chimney must be in good
condition.
Regular cleaning and maintenance of the boiler system is
of the utmost importance to assure trouble-free operation
and to obtain the greatest possible output at the best
efficiency.
The cleaning intervals listed here are for wood chip fuel
with clinging bark with 0.8% ash content. The cleaning
intervals may vary, depending on the fuel, the amount
of fine matter and the operating conditions.
IMPORTANT
CAUTION
RISK OF INJURY - Shut the system off before beginning
any cleaning work. Be absolutely sure to wear protective
gloves, protective eyewear if required and use the cleaning
utensils that come with the system (danger of blow-ups,
burns and getting crushed)!
CAUTION
DANGER OF INJURY – be absolutely sure to turn OFF
main switch.
Never operate the boiler without the ash bin.
After each manual cleaning
of the heat exchanger:
Use ash rake to draw ash to
the front and remove.
After each manual cleaning
of the heat exchanger:
Open lid on both sides
and remove ash.
Approx. every 300 operating
hours:
Clean the light barriers and
inspection windows above
the in-feed auger, and also
opposite. Remove dust and
ash deposits in the openings.
Approx. every 300 operating
hours:
Open all the lids on the
insertion side or across from
the feed and remove ash.
Approx. every 300 operating hours:
Clean the light barriers and inspection
windows above the de-ashing auger
(optional), and also opposite. Remove
dust and ash deposits in the openings.
Approx. every 300 operating hours:
Clean the air vents for the burner trough
and remove remaining ash from the
combustion chamber.
IMPORTANT
With pneumatic cleaning system, disconnect the
compressed air line before opening the boiler door –
danger of injury!
With pneumatic cleaning system, after approx. 600
operating hours; without pneumatic pipe cleaning system,
after approx. 300 operating hours:
Open the heat exchanger door and clean all heat
exchanger tubes with a wire cleaning brush.
Check the level of the ash bin regularly and empty the bin
before it is completely full.
