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Maintenance
7.3 Opening the burner
If maintenance of the combustion head is required, refer to the in-
structions given in “Operating position” on page 13.
For accessing to the interior of the burner, loosen the screws that
secure the cover and proceed with the maintenance operation.
Check the operation
– Start-up of the burner with a sequence of functions (see
chapter “Operation sequence of the burner” on page 21)
– Ignition device
– Air pressure switch
– Flame monitoring
– Tightness test of components to the passage of fuel
Disconnect the electrical supply from the burner
by means of the main system switch.
Turn off the fuel interception tap.
Wait for the components in contact with heat
sources to cool down completely.
Operating safety hazards
Repairs to the following components may only be
carried out by the respective manufacturers or by
personnel instructed by them:
– fan motor
– actuator
– air damper servomotor
– electromagnetic valves
– burner programmer
After carrying out maintenance, cleaning or
checking operations, reassemble the cover and
all the safety and protection devices of the burner.
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