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5.17.2 Supply cables and external connections
passage
All the cables to be connected to the burner should be passed
through cable grommets, as shown in Fig. 33.
To guarantee the protection level of the burner, it
is necessary to close any holes that are still free,
using the plugs supplied.
WARNING
1
3
2
6
5
4
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5.18
Calibration of the thermal relay
The thermal relay (Fig. 34) serves to avoid damage to the motor
due to an excessive absorption increase or if a phase is missing.
For calibration 2), refer to the table indicated in the electrical lay-
out (electrical wiring in charge of the installer).
To reset, in case of an intervention of the thermal relay, press but-
ton "RESET" 1).
The button "STOP" 3) opens the NC contact (95-96) and stops
the motor.
Insert a screwdriver in the window "TEST/TRIP" 4) and move it in
the arrow direction (to the right) to carry out the thermal relay test.
The automatic reset can be dangerous.
This operation is not foreseen in the burner oper-
ation.
WARNING
Installation
Key (Fig. 33)
1
2
3
4
5
6
7
8
5
5
7
6
7
6
7
7
8
Fig. 33
31
GB
Electrical supply
Minimum gas pressure switch
Pressure switch for VPS gas valve leak detection
Gas train
Consents/Safety
Available
Plug
FGR probe PT1000
After carrying out maintenance, cleaning or
checking operations, reassemble the hood and all
the safety and protection devices of the burner.
D11301
Fig. 34
20170641
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