Electrical Connections To The Boiler; Removing The Burner - Sime FUEL 25 EV Manual De Uso, Instalación Y Mantenimiento

4.8.4

Electrical connections to the boiler

The SIME FUEL EV burner is fitted with a 7-pole female/male
connector (1) for making the electrical connections to the boi-
ler's control panel.
The electrical connections must conform to the wiring diagram
provided by the manufacturer of the boiler and must be made
by the installer.
– The electrical system must be arranged by qualified person-
nel in accordance with the regulations in force in the country
of destination. Refer to the wiring diagrams.
– Check that the supply voltage matches the value shown on the
wiring diagram and on the data plate.
– Burner fuse: 3 A.
– Use flexible cables in conformity to the EN 60 335-1 standard.
Ensure a proper earthing connection.
– The cross-sectional dimensions of the cabling must be at
least 1mm (in any case, refer to the standard and the local
2
regulations).
m
CAUTION
It is compulsory :
– To mount an omnipolar residual-current circuit
breaker conforming to EN standards that allows for
completely disconnecting the system in overvoltage ca-
tegory III conditions (that is, with a gap of at least 3 mm
between the open contacts)
– Respect the connections L (Live) - N (Neutral).
:
It is compulsory
– To connect the earth wire to an effective earthing
system. The manufacturer shall not be held liable for
damages caused by failure to earth the appliance or
failure to observe the information provided in the wi-
ring diagrams
d
IT IS FORBIDDEN
To use the water pipes to earth the appliance.
50
1
.
.
4.9

Removing the burner

When it is necessary to remove the burner from the boiler:
– shift the main switch of the system and of the boiler to "OFF";
– close the fuel shut-off valves mounted upstream of the bur-
ner;
– loosen the nut (9) fastening the burner to the boiler, turn the
burner (10) slightly towards the right and remove it from the
boiler.
10
Fig. 24
NB.
If the burner is extracted from the boiler to perform routine or
extraordinary maintenance, refer to the specific chapter "MAIN-
TENANCE".
OFF
9
EN
Fig. 25
Fig. 26