PELLET
STOVES
Chapter
3
INSTALLATION AND USE MANUAL
End piece with a
filling tap (D)
and pressure gauge (M)
(accessory)
Grey plug loosened
1 turn
Red plug blocked
3.4.2.
System filling
To fill the system, the stove can be equipped with an end piece
with a non-return valve
(D)
, for manual filling of the heating
system (if the
is not installed, the filling tap on the main boiler
will be used). During this operation, any air in the system is released
from the automatic vent valve located under the top.
To ensure the valve vents correctly, it is advisable to loosen the grey
cap one turn and to keep the red cap blocked
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
boiler must be
1.5 bar
.
To monitor system pressure, the end piece
is
equipped with a pressure gauge (M).
Upon completion of this operation,
always
close the tap.
3.4.3.
Water characteristics
The characteristics of the water used to fill 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
CONCERNING:
Hardness of water circulating in the system, to prevent
problems of incrustation and limescale, especially in the
domestic water heat exchanger. (> 25° French)
Installation of a water softener (if water hardness
exceeds 25° French)
Filling the system with treated water (demineralised).
Possibly providing an anti-condensation circuit.
Installation of plumbing bumpers to prevent banging
along the fittings and pipes.
If you have very extensive systems, with a large amount of water, or
which require frequent refilling, the installation of water softening
systems.
It should be remembered that incrustations
drastically reduce performance due to low thermal
conductivity.
Filling tap (D)
Pressure gauge (M)
Vent valve under the top
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