General Instructions; Place Of Installation; Plumbing Connections; Gas Connection - Ferroli BLUEHELIX B 32 K 50 Instrucciones De Uso, Instalación Y Mantenimiento

System water pressure adjustment
The filling pressure read on the boiler water gauge with the system cold must be approx
1.0 bar. If the system pressure falls to values below minimum, the boiler stops and fault
F37 is displayed. Operate the filling cock (detail 1 - fig. 12) and bring it to the initial value.
Always turn it off it afterwards.
Once the system pressure is restored, the boiler will activate the 300-second air venting
cycle indicated on the display by FH.
fig. 12 - System filling cock
3. INSTALLATION

3.1 General Instructions

BOILER INSTALLATION MUST ONLY BE PERFORMED BY QUALIFIED PERSON-
NEL, IN ACCORDANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL
MANUAL, THE PROVISIONS OF CURRENT LAW, THE PRESCRIPTIONS OF NA-
TIONAL AND LOCAL STANDARDS AND THE RULES OF PROPER WORKMANSHIP.

3.2 Place of installation

The combustion circuit is sealed with respect to the place of installation
The unit is suitable for indoor installation.
The place of installation must be dry, not exposed to rain, snow or frost, and free of flam-
mable dusts, objects and materials and corrosive gases.
If the unit is enclosed in a cabinet or mounted alongside, a space must be pro-
A
vided for removing the casing and for normal maintenance operations.

3.3 Plumbing connections

Important
B
The safety valve outlet must be connected to a funnel or collection pipe to pre-
vent water spurting onto the floor in case of overpressure in the heating circuit.
Otherwise, if the discharge valve cuts in and floods the room, the boiler manu-
facturer cannot be held liable.
B
Before installation, carefully clean all the system pipes to remove any residuals
or impurities that could affect proper operation of the unit.
In case of replacement of generators in existing installations, the system must
be completely emptied and cleaned of any sludge and pollutants. For that pur-
pose only use suitable guaranteed products for heating systems (see following
section), that do not harm metals, plastics or rubber. The manufacturer de-
clines any liability for damage caused to the generator by failure to prop-
erly clean the system.
Carry out the relevant connections according to the diagram in fig. 13 and the symbols
on the unit.
72 50 50
9
192
8
11
10
7
fig. 13 - Plumbing connections
44
EN
1
50 60 50 268
cod. 3541H114 - Rev. 00 - 11/2018
7 Gas inlet - 1/2"
8 DHW outlet - 1/2"
9 DHW inlet - 1/2"
Antifreeze system, antifreeze fluids, additives and inhibitors
When necessary, antifreeze fluids, additives and inhibitors can be used only if the man-
ufacturer of such fluids or additives guarantees that they are suitable and do not cause
damage to the exchanger or other components and/or materials of the boiler and system.
Do not use generic antifreeze fluids, additives or inhibitors that are not specific for use in
heating systems and compatible with the materials of the boiler and system.
Water system characteristics
In the presence of water harder than 25° Fr (1°F = 10ppm CaCO
water in order to avoid possible scaling in the boiler.

3.4 Gas connection

B
Before making the connection, ensure that the unit is arranged for operation
with the type of fuel available.
The gas must be connected to the relevant connection (see fig. 13) in conformity with the
current standards, using a rigid metal pipe or a continuous surface flexible s/steel tube
and installing a gas cock between the system and boiler. Make sure all the gas connec-
tions are tight.

3.5 Electrical connections

B
The unit must be connected to an efficient earthing system in accordance with
the current safety standards. Have the efficiency and suitability of the earthing
system checked by professionally qualified personnel; the Manufacturer de-
clines any liability for damage caused by failure to earth the system.
The boiler is prewired and provided with a "Y" type cable (without plug) for con-
nection to the electric line. The connection to the mains must be permanent and
have a bipolar switch with contact gap of at least 3 mm, interposing fuses of
max. 3A between the boiler and the line. Make sure to respect the polarities
(LINE: brown wire / NEUTRAL: blue wire / EARTH: yellow-green wire) in the
connections to the electric line.
B
The power cable must not be replaced by the user. If the cable gets damaged,
switch off the unit and have it changed by professionally qualified personnel. If
replacing the power cable, only use "HAR H05 VV-F" 3x0.75 mm2 cable with
max. external diameter 8 mm.
Room thermostat (optional)
B
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE
-
CONTACTS. CONNECTING 230V TO THE ROOM THERMOSTAT TERMI-
NALS WILL PERMANENTLY DAMAGE THE PCB.
When connecting a time control or timer, do not take the power supply for such de-
vices from their cutoff contacts. Their power supply must be taken with a direct con-
nection from the mains or with batteries, depending on the type of device.
Accessing the electrical terminal block
The electrical terminal block (fig. 14) can be accessed after removing the front panel (***
'Opening the front panel' on page 47 ***). The arrangement of the terminals for the vari-
ous connections is also given in the wiring diagram in fig. 31.
72
139
fig. 14 - Accessing the terminal block
10 System delivery - 3/4"
11 System return - 3/4"
192 Recirculation - 1/2"
), use suitably treated
3
A 138
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