Burner Connection; Electrical Connections - Ferroli ATLAS D ECO 34 CONDENS K 130 UNIT Instrucciones De Uso, Instalación Y Mantenimiento

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. 20.
fig. 20 - 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. 21 - Gravity feed
fig. 22 - Suction feed
fig. 23 - Siphon feed
38
EN
ATLAS D 34 CONDENS K130 UNIT
cod. 3541Q642 - Rev. 00 - 06/2021
fig. 24 - Ring feed

3.5 Electrical connections

Connection to the electrical grid
The unit's electrical safety is only guaranteed when cor-
B
rectly connected to an efficient earthing system executed
according to current safety standards. Have the efficiency
and suitability of the earthing system checked by profes-
sionally qualified personnel. The manufacturer is not re-
sponsible for any damage caused by failure to earth the
system. Also make sure that the electrical system is ade-
quate for the maximum power absorbed by the unit, as
specified on the boiler dataplate.
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 cable. If the
B
cable gets damaged, switch off the unit and have it
changed solely by professionally qualified personnel. If
changing the electric power cable, use solely "HAR H05
VV-F" 3x0.75 mm2 cable with a maximum outside diam-
eter of 8 mm.
Room thermostat (optional)
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE
B
VOLTAGE-FREE CONTACTS. CONNECTING 230 V TO
THE ROOM THERMOSTAT TERMINALS WILL PERMA-
NENTLY DAMAGE THE ELECTRONIC BOARD.
When connecting time controls or a timer, do not take the
power supply for these devices from their breaking con-
tacts Their power supply must be by means of direct con-
nection from the mains or with batteries, depending on the
kind of device.