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1.21 ANTIFREEZE PROTECTION.
Assembly instructions.
- Wind the heating cable (d15) around the connection pipes and
safety valve.
Attention: the graphic representation of the heating cable is
purely indicative.
Recommendations for the technician.
The antifreeze kit was inspected and tested in the factory; there-
fore, it does not require testing or inspection upon installation.
Once the antifreeze kit has been installed, it is always connected
and operational.
Minimum temperature -5°C. The pack comes standard with an
antifreeze function that activates the electric resistance when the
temperature in the Solar Container falls below 4°C.
The antifreeze function is only guaranteed if:
- the pack is connected properly to the electrical circuit and is
constantly powered;
- the essential components are not faulty.
In these conditions the pack is protected against freezing up to an
ambient temperature of -5°C.
Minimum temperature -15°C. If the pack is installed in a place
where the temperature drops below -5°C, the appliance may freeze.
To prevent the risk of freezing, there is an accessory kit that can
be supplied on request (antifreeze kit); follow the instructions in
the boiler instruction book and the relative instruction sheet of
the antifreeze kit (optional).
The warranty does not cover damage due to interruption of the
electrical power supply and failure to comply with what is stated
in the relative instructions.
1.22 SYSTEM FILLING.
Once the indoor unit is connected, fill the system using the filling
cock (Fig. 36 pos. 13).
The indoor unit has one incorporated automatic vent valve located
on the manifold and one manual vent valve located on the filling
pipe (Fig. 36, pos. 14).
It is recommended to open the manual vent valve during the filling
phases to completely eliminate the air from the system.
Make sure that the hoods are loosened.
The filling cock must be closed when the indoor unit pressure
gauge indicates approximately 1.2 bar.
During these operations, enable the manual "De-aer-
ation" functions, which lasts about 9 hours (Par. 3.12).
System minimum water content.
The appliance has an hydraulic manifold acting as the inertial
storage tank of primary water sufficient for the good operation
of the system.
This is why it is not necessary to add any kind of inertial
storage tank to the system.
d23
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