11/2010 - Art. Nr. 4200 1029 8600A
22
Replacing the flame tube
It is necessary to remove the burner for
this work.
• Loosen the clamping screw on the
connecting flange.
• Turn the burner out of the bayonet
socket, lift it slightly and pull it out of
the connecting flange.
• Place the burner on the floor.
• Loosen the 4 screws
X
on flame tube.
• Pull the flame tube out towards you.
• Fit and secure the flame tube.
The flame tube may be very hot
Filter replacement
• The filter element of the multiblock
must be checked at least once a year
and replaced if clogged.
• Loosen the screws of the filter cap on
the multiblock.
• Remove the filter element and clean its
housing.
• Do not use any pressurised cleaning
products.
• Replace the filter element with a new
element.
• Screw the cover back into place.
• Reopen the manual shut-off valve.
• Check it is airtight.
• Check the combustion values.
Cleaning the air intake box
• Unscrew securing screws
V
on the air
intake box.
• Remove and clean the air intake box.
Reassemble in the reverse order.
• Note the correct position of the air flap
and the servomotor.
Cleaning the cover
• Do not use abrasive products or
products containing chlorine.
• Clean the cover with water and a
suitable cleaning product.
• Refit the cover.
Precautions
After any operation: check the
combustion performance under real
operating conditions (doors shut,
cover fitted etc.). Record the results
in the relevant documents.
Checking the flue gas temperature
• Check the flue gas temperature at
regular intervals.
• Clean the boiler if the flue gas
temperature is more than 30 °C above
the value measured at the time of
commissioning.
• Use a flue gas temperature gauge to
make the check easier.
Maintenance
Servicing
Содержание VL 2.120 D
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