INSTALLATION INSTRUCTION
36
The POWER PLUS Boiler is not fitted with a filling valve,
which must be installed on the system return.
FILLING
- Open the valves (1) installed on the boiler water fittings;
- Open the caps on the automatic vent valve/valves (2)
two or three turns;
- Open the filling valve on the system until the pressure
shown on the pressure gauge is 1,5 bar.
- Close the filling valve again.
b The air is vented from the POWER PLUS boiler
automatically through the automatic vent valve/val-
ves installed on the top of the heating units.
Check that the cap on the valve is open.
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