Kalor Sonia 28B, User Manual

Page: 16 / 54

64
EN
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
.
STOPPER BLOCKED
LOOSE STOPPER
ONE TURN
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 water of the 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;