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It does not require an air intake point in the installation area.
This type MUST be installed using concentric pipes, or other
types of discharge designed for condensation boilers with an air-
tight chamber.
MINIMUM DISTANCES
In order to have access to the boiler to perform regular maintenance
operations, respect the minimum spaces foreseen for installation
(fig. 1).
For correct appliance positioning:
- do not place it on a cooker or other cooking device
- do not leave inflammable products in the room where the boiler is
installed
- heat sensitive walls (for example, wooden walls) must be protected
with proper insulation.
Preliminary check
- Before installation, wash every system piping carefully in order to
remove any residues that may impair the operation of the appli-
ance.
- Connect the discharge manifold to a suitable discharge system (for
details, refer to chapter 3.8).
- The domestic hot water circuit does not need a safety valve, but
make sure that the pressure of waterworks does not exceed 6 bar.
In case of doubts, install a pressure reducer.
- Prior to ignition, make sure that the boiler is designed to operate
with the gas available; this can be checked by the wording on the
packaging and by the adhesive label indicating the gas type.
- It is very important to highlight that in some cases the smoke pipes
are under pressure and therefore, the connections of several ele-
ments must be airtight.
3.2
Cleaning the system / characteristics of the
heating circuit water
In the case of a new installation or replacement of the boiler, it is
necessary to clean the heating system.
To ensure the device works well, top up the additives and/or chemical
treatments (e.g. anti-freeze liquids, filming agents, etc.) and check
the parameters in the table are within the values indicated.
Parameters
Um
PH value
Hardness
° F
Appearance
3.3
Characteristics of the DHW circuit water
If consumption water has a total hardness between 25° F and 50° F,
install a DHW treatment kit; with a total hardness greater than 50° F,
the kit's effectiveness progressively reduces and therefore the use of
an appliance of higher performance or total softening is recommend-
ed; even with a total hardness of less than 25° F, a filter of appropri-
ate size must be installed if the water comes from the mains that is not
perfectly clean/cleanable.
3.4
Eliminating the air from the heating circuit
and boiler
During the initial installation phase, or in the event of extraordinary
maintenance, you are advised to perform the following sequence of
operations (Fig. 2):
1.
Open by two or three turns the automatic relief valve cap (A) and
leave it open.
2.
Open the system filling tap located on the water unit.
3.
Switch on the electricity supply to the boiler, leaving the gas tap
turned off.
4.
Activate a heat request via the ambient thermostat or the remote
control panel, so that the 3-way valve goes into heating mode.
5.
Activate a domestic water request as follows: open a tap for 30"
every minute so the 3-way valve passes from heating to domes-
tic water and vice versa about 10 times. In this situation, the
boiler will go into alarm mode due to the absence of gas, so it
must be reset every time this happens).
6.
Continue the sequence until no more air can be heard coming
from the air vent valve.
7.
Check the system pressure level is correct (the ideal level is 1 bar).
8.
Turn off the system filling tap.
9.
Turn on the gas tap and ignite the boiler.
Heating
Filling water
circuit water
7~8
-
-
15~20
-
clear
3.5
Positioning the wall-mounted boiler and
hydraulic connections
The boiler is supplied as standard with a boiler support plate with
built-in pre-assembly template (Fig. 3). The position and dimension
of hydraulic fittings are shown in the detail drawing.
For the assembly, proceed as follows:
- secure the boiler support plate (F) using the pre-assembly template
(G) to the wall and use a spirit level to make sure that everything
is perfectly horizontal
- mark the 4 holes (ø 6 mm) envisaged for securing the boiler sup-
port plate (F) and the 2 holes (ø 4 mm) for securing the pre-assem-
bly template (G)
- make sure that all measurements are exact, then drill the wall us-
ing drill tips with the diameters indicated above
- fix the plate with the built-in template to the wall.
- assemble the hydraulic equipment supplied: taps, connections,
straight trains (to be shortened if needed), nuts and gaskets (fi g. 3)
The tap with fi lter should be installed on the heating return
line.
The tap with fi lter, unlike the other taps, has a lever with 3 positions: open-
ing - closing and cleaning.
For the cleaning position see paragraph "5.1 Routine maintenance".
opening
closing
position
position
Make the hydraulic connections and then fix the lower cover con-
nections.
The position and size of the hydraulic connections are indicated be-
low:
R
heating return line
M
heating delivery
G
gas connection
AC
hot water
AF
cold water
R
M
3.6
Installing the external probe
The correct operation of the external probe, supplied as an accesso-
ry, is fundamental for the good operation of the climatic control.
INSTALLING AND CONNECTING THE EXTERNAL PROBE
The probe must be installed on an external wall of the building to be
heated, observing the following indications:
- it must be mounted on the side of the building most often exposed
to winds (the NORTH or NORTHWEST facing wall), avoiding direct
solar irradiation;
- it must be mounted about 2/3 of the way up the wall;
- it must not be mounted near doors, windows, air outlet points, or
near smoke pipes or other heat sources.
MySMART C.S.I.
fi lter cleaning
position
3/4"
M
3/4"
M
3/4"
M
1/2"
M
1/2"
M
G AC AF
5
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