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GZ 2 - GZ 4 / 100 - 1450 kW
Installation-Operation-Maintenance
23
Maintenance and service
Many European laws require that combustion heating systems
have to be checked once a year by a qualified heating engineer.
The burner should be thoroughly checked and cleaned (tan im-
peller, mixing system, ignition system). The gas filter should be
re-placed as required and the assembly of the air damper axle
oiled in GZ 4 (see Fig. 25).
For maintenance, the burner is removed from its housing by
turning the four quick release screws and disconnecting the gas
compact ramps or the gas ramps system, then hanging it in one
of the service positions (GZ 2 - GZ 3).
In GZ 4, the nozzle system can be removed separately after dis-
connecting the ignition cable plug and the ionisation cable and
after unscrewing the flange cover screws.
Before removing the nozzle system, care must be taken to en-
sure that the servomotor has returned to the closed position.
Fig. 23: Burner in service Position
Fig. 24: Heating room dimensions for GZ 4
Fig. 25: Air damper assembly GZ 4