6 Maintenance
6.1 Burner maintenance
Installation, commissioning, or service of the appliance is to be carried
out by authorized and trained personnel only, adhering to all local
regulations and requirements.
Secure all safety covers, enclosures, and guards with all screws before
start-up. Use appropriate tools.
Cut off power supply to the burner and close the manual shut-off valves
always before any maintenance work. Cutting power is adequate when
just inspecting the device.
Before starting maintenance work, make sure that there is no pressure
in the piping. If there is pressure, discharge gas from the piping.
Check the combustion opening regularly for fouling even during periods
when the burner is out of use. A blockage in the combustion head may
cause a hazard.
Before maintenance
● Cut off power supply
● Close fuel valves
● Discharge pressure from piping
● Disconnect ignition cables
● Remove rods for adjustable combustion head
To maintain flawless operation, do the following at least once a year:
1. Check burner head extension, and change if necessary.
2. Check diffuser disc, and change if necessary. Check burner adjustments if diffuser
disc appears dirty.
3. Check ignition cable condition from the whole length. Change, if necessary.
4. Clean and check ignition electrodes, and check correct position. Change, if
necessary.
5. Check flame detector position, condition and cleanliness.
6. Clean filters at least once a year. Filters may have to be cleaned more often
depending on circumstantial conditions.
7. Check air dampers fixing screws and servomotor axle lock. Retighten if necessary.
8. Check hoses and pipes and their joints for leaks. Repair/change, if necessary.
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