Gas Connection; Electrical Connections; Fume Ducts - Ferroli BLUEHELIX TECH S 45H Instructions D'utilisation, D'installation Et D'entretien

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. 12) 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
current safety standards. Have the efficiency and suitability of the earthing sys-
tem checked by professionally qualified personnel; the Manufacturer declines
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 connections to the grid must be made with a per-
manent connection and equipped with a bipolar switch whose contacts have a
minimum opening 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 / NEU-
TRAL: blue wire / EARTH: yellow-green wire) in the connections to the electric
line.
B
The unit's power cable must not be replaced by the user. If the cable gets dam-
aged, switch off the unit and have it replaced only by professionally qualified
personnel. In case of replacement, use exclusively "HAR H05 VV-F" 3x0.75
mm2 cable with maximum ext. diameter of 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
After removing the front panel ( *** 'Opening the front panel' on page 38 ***) it is possible
to access the electrical connections terminal block (fig. 14). The layout of the terminals
for the various connections is given in the wiring diagram in fig. 29.
72
139
fig. 14 - Accessing the terminal block

3.6 Fume ducts

Important
The unit is "type C" with sealed chamber and forced draught; the air inlet and fume outlet
must be connected to one of the following extraction/suction systems. Before installation,
check and carefully observe the above prescriptions. Also, comply with the provisions
concerning the positioning of wall and/or roof terminals and the minimum distances from
windows, walls, vents, etc.
Connection with coaxial pipes
fig. 15 - Examples of connection with coaxial pipes (
Table. 2 - Typology
Type Description
C1X Wall horizontal exhaust and inlet
C3X Roof vertical exhaust and inlet
36
EN
1 2 3
95
155
138
10kOhm
1.8kOhm
A
1 2 3 4 5
= Air / = Fumes)
cod. 3541G104 - Rev. 00 - 11/2018
BLUEHELIX TECH S 45H
For coaxial connection, fit the unit with one of the following starting accessories. For the
wall hole dimensions, refer to the figure on the cover. Any horizontal sections of the fume
exhaust must be kept sloping slightly towards the boiler, to prevent possible condensate
from flowing back towards the outside and causing dripping.
Ø 100
Ø 60
041002X0
fig. 16 - Starting accessory for coaxial ducts
Table. 3 - Max. length coaxial ducts
Max. permissible length
(horizontal)
Max. permissible length
(vertical)
Reduction factor
90° bend
Reduction factor
45° bend
Connection with separate pipes
6
C
5x
fig. 17 - Examples of connection with separate pipes (
Table. 4 - Typology
Type Description
C1X Wall horizontal exhaust and intake. The inlet/outlet terminals must be concentric or close enough to be
undergo similar wind conditions (within 50 cm)
C3X Roof vertical exhaust and intake. Inlet/outlet terminals like for C12
C5X Wall or roof exhaust and intake separate or in any case in areas with different pressures. The exhaust and
intake must not be positioned on opposite walls.
C6X Intake and exhaust with separately certified pipes (EN 1856/1)
B2X Intake from installation room and wall or roof exhaust
IMPORTANT - THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
Ø 127
041006X0
041001X0
Coaxial 60/100
5 m
6 m
1 m
0.5 m
B C
2x
= Air /
Ø 80
Coaxial 80/125
15 m
0.5 m
0.25 m
1x
= Fumes)