Burner Connection; Electrical Connections - Ferroli ATLAS D ECO UNIT Instructions D'utilisation, D'installation Et D'entretien

ATLAS D ECO UNIT

3.4 Burner connection

The burner is equipped with flexible pipes and a filter for connection to the oil feed line.
Run the flexible pipes out of the back and install the filter as indicated in fig. 22.
fig. 22 - Fuel filter installation
The oil feed circuit must be made according to one of the following diagrams, without ex-
ceeding the pipe lengths (LMAX) given in the table.
fig. 23 - Gravity feed
fig. 24 - Suction feed
fig. 25 - Siphon feed

3.5 Electrical connections

Connection to the electrical grid
The unit's electrical safety is only guaranteed
B
when correctly connected to an efficient earth-
ing system executed according to current
safety standards. Have the efficiency and suit-
ability of the earthing system checked by pro-
fessionally
manufacturer is not responsible for any dam-
age caused by failure to earth the system.
Also make sure that the electrical system is
adequate for the maximum power absorbed
by the unit, as specified on the boiler data-
plate.
The boiler is prewired and provided with a Y-cable and plug for connection to the elec-
tricity line. The connections to the grid must be made with a permanent 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. It is important to re-
spect the polarities (LINE: brown wire / NEUTRAL: blue wire / EARTH: yellow-green
wire) in making connections to the electrical line. During installation or when changing
the power cable, the earth wire must be left 2 cm longer than the others.
The user must never change the unit's power
B
cable. If the cable gets damaged, switch off
the unit and have it changed solely by profes-
sionally qualified personnel. If changing the
electric power cable, use solely "HAR H05
VV-F" 3x0.75 mm2 cable with a maximum
outside diameter of 8 mm.
Room thermostat (optional)
IMPORTANT: THE ROOM THERMOSTAT
B
MUST HAVE VOLTAGE-FREE CONTACTS.
CONNECTING 230 V TO THE ROOM THER-
MOSTAT TERMINALS WILL PERMANENT-
LY DAMAGE THE ELECTRONIC BOARD.
When connecting time controls or a timer, do
not take the power supply for these devices
from their breaking contacts Their power sup-
ply must be by means of direct connection
from the mains or with batteries, depending on
the kind of device.
cod. 3541Q433 - Rev. 00 - 10/2021
fig. 26 - Ring feed
qualified personnel.
EN
The
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