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EN / 21
Connection pipes
Discharge
Filling the system
When starting up the system, make sure that the hydraulic
unit lockshield is open. If there is no electric power and the
thermo-valve has already been powered use the special
cap to press the valve stopper to open it.
Evacuating air while filling the system
-
Open all the shut off valves (manual or automatic);
- Start the filling by slowly opening the system water
filling tap;
- For the unit installed in a vertical position, take a
screwdriver and open the highest breather of the heat
exchanger.
-
For appliances installed horizontally, open the breather
positioned higher up.
-
When water starts coming out of the breather valves
of the appliance, close them and continue filling until
reaching the nominal value for the system.
Check the hydraulic seal of the gaskets.
It is advisable to repeat these operations after the appliance
has been running for a few hours and periodically check
the pressure of the system.
Venting of the heat exchanger
