Kalor SLIM IDRO 16 Manual Del Usuario página 70

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 lling 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 ows 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 lling tap of the system and then let
the air ow out again through the vent's valve of
the radiator;
During operation, the safety valve
must be connected and not plug-
ged in, to allow the stove to di-
scharge the water in the event of
overpressure.
Water Characteristics
The characteristics of the water used to
the system are very important to prevent the
build-up of mineral salts and the formation of
incrustations along the pipes, in the boiler and in
the heat exchangers.
Therefore, please get your plumber's advice
concering:
• Hardness of water circulating in the system, to
prevent problems of incrustation and limescale,
especially in the domestic water heat exchanger
70
(>15° French).
• Installation of a water softener (if water hardness
> 15° French).
• Filling the system with treated water
(demineralised).
If you have very extensive system, with a large
amount of water, or which require frequent
re lling, it is recommended the installation of
water softening system. It 'should be noted that
the encrustations drastically reduce performance
because of their low thermal conductivity.
freshwater
water medium
hard water
very hard water
ll
(0-12)
(12-20)
(20 - 30)
(over 30)