Burner Connection; Electrical Connections; Connection To The Flue; Condensate Drain Connection - Ferroli ATLAS D 32 CONDENS SI UNIT Instrucciones De Uso

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. 18.
fig. 18 - 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. 19 - Gravity feed
fig. 20 - Suction feed
fig. 21 - Siphon feed
fig. 22 - Ring feed
ATLAS D 32 CONDENS SI UNIT

3.5 Electrical connections

Connection to the electrical grid
B
The unit's electrical safety is only guaranteed when correctly connected to an efficient earth-
ing system executed according to current safety standards. Have the efficiency and suitability
of the earthing system checked by professionally qualified personnel. The manufacturer is not
responsible for any damage 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 dataplate.
The boiler is prewired and provided with a Y-cable and plug for connection to the electricity line. The con-
nections 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 respect 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.
B
The user must never change the unit's power cable. If the 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)
B
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE CONTACTS.
CONNECTING 230 V TO THE ROOM THERMOSTAT TERMINALS WILL PERMANENTLY
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 supply must be by means of direct connection from the
mains or with batteries, depending on the kind of device.
Accessing the electrical terminal block
Undo the two screws "A" located on the top part of the control panel and remove the
cover.

3.6 Connection to the flue

The unit must be connected to a flue designed and built in compliance with the current regulations. The
pipe between the boiler and flue must be made from material suitable for the purpose, i.e. heat and cor-
rosion resistant. Ensure the seal at the joints.

3.7 Condensate drain connection

The unit's condensate drain must be connected to a suitable disposal system. Comply with the specific
local and national regulations on discharging condensate water into the waste water disposal system.
For boilers not using exclusively low-sulphur gas oil (S content<50 ppm) make sure to provide for a suit-
able condensate neutralisation device.
Connect the condensate drain pipe located at the back of the boiler (ref. A - fig. 24) to the neutralisation
device connected to the waste water system. The condensate discharge pipes must be acidproof and
installed sloping at least 3° towards the drain, without any constrictions and obstructions.
B
IMPORTANT. Fill the trap with water before starting the unit.
ATTENTION: The unit must never be operated with the trap empty!
Periodically check the water in the trap.
cod. 3541G830 - Rev. 03 - 04/2018
fig. 23 - Accessing the terminal board
fig. 24 - Condensate drain