Preparing For First Start-Up - Beretta POWER PLUS Installation Instruction

Preparing for First Start-up

Before starting the system and running the functional
tests on the POWER PLUS Boiler, check that:
- The fuel valve and valves in the central heating system
are open;
- The type of gas and the supply pressure are correct for
the boiler;
- The system is filled, pressure in the water circuit,
when cold, is around 1,5 bar and the circuit has been
vented;
- The system expansion vessel is suitably pre-charged;
- The electrical connections have been performed cor-
rectly.
b
The pumps should be connected by installing suita-
ble contactors with manual emergency operation.
- Check that the cap on the vent valve/valves is
unscrewed;
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- The pumps turn freely:
loosen the inspection screw and check with a flathead
screwdriver that the motor shaft is rotating without
impediments.
b
Before loosening or removing the seal cap on the
pump, protect the electrical devices underneath
against water spillage.
- The flues have been properly made and installed.