Unical STILE 27, Инструкция по установке, техническому обслуживанию и эксплуатации

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Installation instructions
3.6 - CONNECTING HEAT STOVE
TO SYSTEM
Attention!
Make sure that there are no mechanical
tension points while connecting the pipes to
avoid the risk of leakage!
Heating flow and return pipes must be connected to the heat
stove at the respective fittings as indicated on page 8.
For the STILE 27 heat stove equipped with the domestic hot
water production kit, see the diagram on page 10.
For the dimensioning of the heating circuit pipes, you must
take into account pressure drops caused by radiators,
thermostatic valves, radiator stopping valves and by the
configuration of the system.
The laying of the pipes must be designed taking every
necessary precaution to avoid air pockets and to facilitate
continuous degassing of the system.
Make sure that the pipes of the water and
heating system are not used as earthing
electrodes of the electric or telephone system.
They are absolutely not suitable for this type of
use. Serious damage could result for the piping,
heat stove and radiators in a short amount of
time.
3.7 - FILLING THE SYSTEM
Attention!
Do not mix the heating water with incorrect
concentrations of antifreeze or anti-
corrosion substances! This could damage
the gaskets and cause noise during
operation.
Unical will not be held liable for damage to
persons, animals or objects due to failure
to comply with the instruction above.
After completion of all the hydraulic connections, fill the
heat stove and proceed with the inspection of soundness
of all the connections.
This operation must be performed carefully, respecting the
following phases:
- open the radiator air release valves;
- open the filling tap gradually, making sure that the
automatic air release valves installed on the system work
properly;
- close the radiator air release valves as soon as water
comes out;
- by means of the pressure gauge inserted on the system,
check that pressure reaches approximately 1 bar;
- close the filling tap of the system and bleed air once again
through the radiator air release valves;
-make sure that all the connections are watertight;
-after commissioning the heat stove and bringing
the system to the operating temperature, stop the
pumps and repeat the air bleed operations;
-let the system cool off and, if necessary, return
the water pressure to 1 bar.
NOTE
In systems equipped with closed expansion
vessel, the water pressure in the heating system
- with the system cold - must not drop below 1
bar; open the filling tap when pressure is too low.
This operation must be performed with the system
cool.
The pressure gauge fitted on the system allows
you to read circuit pressure.
NOTE
If the system was without electric power, after a
certain idle period, the pump/s could be blocked.
Before turning on the main switch, the pump must
be unblocked by operating as follows:
Introduce a screwdriver in the hole below the
protective screw in the centre of the pump
intended for this purpose and turn the pump shaft
clockwise.
After having unblocked the pump, tighten the
protective screw and make sure there is no water
leakage.
ATTENTION!
After removing the protective screw, a small
amount of water could leak out. Dry off all wet
surfaces before powering the boiler.
fig. 9