The boiler must be installed in a fixed loca-
tion and only by specialised and qualified
firms in compliance with all instructions
contained in this manual.
Furthermore, the installation must be in
accordance with current standards and
regulations.
2.1
INSTALLATION
– These boilers can be installed in all normal
domestic environments as a room sealed
multi function boiler.
– These boilers can also be installed in par-
tially covered areas, as per EN 297, with a
maximum ambient temperature of 60°C
and a minimum ambient temperature of -
5°C. It is generally advisable to install the
boilers below weathered roofs, on the bal-
cony or in a protected niche, to protect
them from exposure to weathering agents
(rain, hail and snow). All boilers provide a
standard antifreeze function.
2.1.1
Anti-freeze function
The boilers are equipped with anti-freeze
function which activates the pumps and the
burner when the temperature of the water
contained inside the appliance drops to
below 6°C.
The anti-freeze function is ensured, howe-
ver, only if:
- the boiler is correctly connected to the
gas and electricity supply circuits;
- the boiler is constantly fed;
- the boiler ignition is not blocked;
- the essential components of the boiler
are all in working order.
In these conditions the boiler is protected
against frost down to an environmental
temperature of -5°C.
ATTENTION: In the case of installation in a
place where the temperature drops below
0°C, the connection pipes must be pro-
tected.
2.2
COMPLEMENTARY
ACCESSORIES
To simplify connections to the hydraulic and
gas supplies, it is also possible to use the
following accessories:
– Mounting plate, code 8101218
– Kit with bends, code 8075423
– Kit with faucets, code 8091820
– Solar kit INSOL only for heating boilers,
code 8092235
– Mixed area kit ZonaMIX, code 8092234
– Antifr eeze heat er s kit -15° C, code
8089805.
– Hydraulic connection kit boiler/tank unit
code 8091112.
For detailed information on the assembly of
fittings, see the instructions contained in
the box.
2.3
CONNECTING UP SYSTEM
To protect the heat system from damaging
corrosion, incrustation or deposits, before
installation it is extremely important to
clean the system using suitable products
such as, for example, FERNOX. Complete
instructions are provided with the products
but, for further information please contact
the Hunt Heating technical department.
For long-term protection agains corrosion
and deposits, the use of inhibitors such as
Fernox is recommended after cleaning the
system. It is important to check the con-
centration of t he inhibit or af t er each
system modification and during maintenan-
ce following the manufacturer’s published
instructions. The safety valve drain must be
connected to a collection funnel to collect
any discharge during interventions. If the
heating system is on a higher floor than the
boiler, install the on/off taps supplied in kit
op tional on t he heating sy s t em
delivery/return pipes.
WARNING: Failure to clean the heat
system or add an adequate inhibitor inva-
lidates the appliance’s warranty.
Gas connections must be made in accor-
dance with current standards and regula-
tions. When dimensioning gas pipes from
the meter to the module, both capacity
volume (consumption) in m
3
/h and gas
density must be taken into account.
The sections of the piping making up the
system must be such as to guarantee a
supply of gas sufficient to cover the maxi-
mum demand, limiting pressure loss
between the gas meter and any apparatus
being used to not greater than:
– 1.0 mbar for family II gases (natural gas);
– 2.0 mbar for family III gases (butane or
propane).
An adhesive data plate is sticked inside the
front panel; it contains all the technical data
identifying the boiler and the type of gas for
which the boiler is arranged.
2.3.1
Connection of condensation
water trap
The drip board and its water trap must be
connected to a civil drain through a pipe
with a slope of at least 5 mm per metre to
ensure drainage of condensation water.
The plastic pipes normally used for civil
drains are the only type of pipe which is
appropriate for conveying condensation
to the building’s sewer pipes.
2.3.2
Filter on the gas pipe
The gas valve is supplied ex factory with an
inlet filter, which, however, is not adequate
to entrap all the impurities in the gas or in
gas main pipes.
To prevent malfunctioning of the valve, or in
certain cases even to cut out the safety
device with which the valve is equipped,
install an adequate filter on the gas pipe.
2.4
SYSTEM FILLING
Filling of the boiler and the system is done
by the charge system (10 fig. 4). The char-
ge pressure, with the system cold, must be
4
5
6
7
8
10
Fig. 4
2
INSTALLATION
KEY
4 3 BAR safety valve
5 Boiler discharge
6 By-pass (blue)
7 Water pressure transducer
8 Diverter valve
10 System loading
NOTE: They are evidenced in
blue/white the members for
which are previewed the verifica-
tion and the control.
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