21
5-PLUMBING CONNECTION
To ll the system, the hydraulic kit (optional) is tted with a tap, with a check valve, to load the heating system manually.
During this operation, any air in the system is released via the air valve located in the upper part of the boiler.
To ensure the valve vents, it is advisable to loosen the side cap (see gure)
The lling pressure of the system WHEN COLD must be 1 bar.
Upon completion of this lling operation, always close the tap.
Technical Dept. - All rights reserved - Reproduction is prohibited
AIR VALVE WITH SIDE CAP
LOOSENED BY 1 TURN
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