Removing The Nozzle Fitting; Cleaning The Burner Components; Cleaning And Decalcifying The Heating Element - Vaillant atmoMAG mini 11-0/0 XZ Manual De Instrucciones

7.2.3 Removing the nozzle fitting

Fig. 7.4 Burner structure
• Undo the two screws to remove the nozzle fitting.

7.2.4 Cleaning the burner components

• Remove any combustion residue using a brass wire
brush. You may have to clean the nozzles, injectors,
burner rails and ignition gas filter using a soft brush
and blow the dirt and dust out with compressed air. If
the burner is very dirty, wash it out with soapy water
and rinse it with clean water.
• Fit the pilot burner and the nozzle fitting back on the
burner.
7.3

Cleaning and decalcifying the heating element

To clean the heating element you must first remove the
burner and then the heating element.
Caution!
When removing or installing the heating ele-
ment, take care not to bend it.
Any damage will lead to premature wear in the
system.
The heating element is only fixed to the water inlet and
outlet pipes.
• Keep to the order stated here, because the clip holds
the threaded sleeve in place.
Installation manual atmoMAG
Inspection and maintenance 7
Fig. 7.5 Heating element water connections
• Undo the cap nuts on the hot water outlet and on the
cold water inlet on the water circuit breaker.
• Undo the screw on the clip on the left which fastens
the hot water outlet pipe to the rear wall.
• Pull out the heating element towards you.
If it is not very dirty:
• Flush out the fins of the heating element using a water
jet.
If it is very dirty:
• Use a soft household brush to clean the fin block. If
possible, clean the fin block from the top down in a
basin of water to remove any grease and dust.
Note!
Do not scrub too hard. Do not damage the fins.
• Then rinse the heating element under flowing water.
If the dirt contains oil or grease:
• Clean the heating element using detergent in a tub of
hot water.
If there is lime scale:
• Use a standard decalcifier. Follow the instructions sup-
plied.
Note!
Depending on the water hardness, we recom-
mend decalcifying the water used by the heat-
ing element.
Caution!
Never use wire brushes or other hard brushes
to clean the heating element.
Any damage will lead to premature wear in the
system.
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