STOPPER BLOCKED
LOOSE STOPPER
ONE TURN
The filling pressure of the system when cold must
be 1 bar.
During operation, if the system pressure drops (due
to evaporation of dissolved gases in the water) to
values lower than the minimum indicated above,
the user must use the filling tap to bring the
pressure back up to its normal pressure.
For proper operation of the stove when hot, the
pressure in the thermostove must be 1,5 bar.
Replenishment of the System
The replenishment has to be slowly carried out in
order to let the air bubbles flow out through the
right oulets that are placed on the heating system.
In heating systems with a closed circuit the loading
cold pressure of the system and the inflation
pressure of the expanding vase must correspond.
• in heating systems with open vase, the direct
contact between the circulating liquid and the air
is allowed. During the heating-season the user
must regularly check the circulating water level in
the expansion vase.
The content of water in the system of recirculation
must be stable hold.
Experiences show that the user must regularly
check the water level every 14 days in order to
maintain a stable water content.
The replenishment process must be carried out
in case of necessity of more water when the
thermostove has cooled down.
These preventive measures aim to prevent the
insurgence of thermic stress of the steel body of
the thermostove.
• in systems with open vase, the pressure of water
in thermostove, when the system is cold, mustn't
be lower than 0,3 bar;
• the water used to fill up the heating system must
be decontaminate and without air.
You must not mix
heating system with antifreeze or
anticorrosion substances in wrong
concentrations.
This could ruin the seals and provoke the
insurgence of noises while operating.
The producer refuses any responsibility
for damages towards persons, animals or
things if this warning will not be respected.
The loading valve is required and must be
provided in the hydraulic system.
This operation must be carried out with caution
following these steps:
• open the vent's valve of the radiator ,of the
thermostove and the system;
• Gradually open the filling tap of the system
checking that the automatic vent's valves, placed
on the system, are regularly working;
• Close the vent's valves of the radiators as soon as
the air flows out;
• check through the pressure gauge placed in the
system that the pressure is reaching 1 bar (this is
required only for systems with closed vase, you
have to look for local rules that allow it); whereas
for systems with open vase the restoration will be
automatic;
• Close the filling tap of the system and then let
the air flow out again through the vent's valve of
the radiator;
water of the
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