Plumbing installation of the boiler to the heating network
WRONG POSITIONING OF VALVES
The valves should never be
placed:
• between the boiler and the
• between the boiler and the
In this case, if the burner is
activated with closed valves the
boiler will be destroyed.
Plumbing installation of the boiler to supply hot domestic water
Filter preventing
mineral deposits
Before connecting the domestic water in the boiler measure the pressure of the water supply.
Then adjust the expansion tank of the water supply at the same bar and insert a corresponding
security valve. E.g. assume the water supply is 4 bar, then choose a safety valve of 6 bar and
adjust the expansion tank at 4 bar.
Cold domestic water inlet
Hot domestic water outlet
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