PART I: INSTALLATION
19
ELECTRICAL CONNECTIONS
To execute the electrical connections, proceed as follows:
1
find the plug or the plugs, according to the model:
7 poles plug for the power supply (for all models);
4 poles plug (progressive burners);
3-poles plug;
2
execute the electrical connections to the plugs, according to the burner model (see next paragraph);
3
once all the connections are accomplished, check the fan motor direction (sse next paragraphs);
4
now the burner is ready to start up.
Identification of linking connectors
Respect the basic safety rules. make sure of the connection to the earthing system. do not reverse the phase and
neutral connections. fit a differential thermal magnet switch adequate for connection to the mains.
ATTENTION: before executing the electrical connections, pay attention to turn the plant’s switch to OFF and be
sure that the burner’s main switch is in 0 position (OFF) too. Read carefully the chapter “WARNINGS”, and the
“Electrical connections” section.
WARNING: the burner is fitted with a bridge between terminals T6 and T8 on CN2-TAB connector (external side link,
male connector); remove this bridge before thermostat connection.
WARNING: if the cable that connects the thermostats and the control box should be longer than 3 meters, insert a
sectioning relay following the attached electrical wiring diagram..
Burner supply connector
(Fig. 23, Fig. 25)
Probe connection connector
(fully modulating burners, Fig. 27)
Fig. 20
HIGH/LOW flame connector
(progressive burners , Fig. 25
Fig. 21
Fan motor connector
(Fig. 24 - Fig. 26)
Fig. 22
WARNING: before operating the burner, be sure all connectors are linked as shown in the diagrams.
