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Annual Maintenance
Plate type heat exchanger.
Maintenance interval: Yearly.
Method: Visual inspection for leaks
Safety valve
Maintenance interval: Yearly.
Method: Visual inspection/Clean if necessary.
Water ow sensor
Maintenance interval: Yearly.
Method: Visual inspection/Clean if necessary/ Check
the ow.
Expansion tank
Maintenance interval: Yearly.
Method: The pressure should be 1 bar in the
air(system drainage).
Flame test needle and ignition needle
Maintenance interval: Yearly.
Method: Visual inspection/clean if necessary distance
with combustor/ electric ion current larger than 1 µ A.
Fan
Maintenance interval: Yearly.
Methods: Visual inspection/Clean if necessary.
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