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Installation
4
4.8
Electrical wiring
Notes on safety for the electrical wiring
The electrical wiring must be carried out with the electrical supply disconnected.
Electrical wiring must be carried out by qualified personnel and in compliance with the regulations currently in force
in the country of destination. Refer to the electrical layouts given in Appendix A.
outs.
Check that the electrical supply of the burner corresponds to that shown on the identification label and in this man-
ual. See Fig. 8.
Do not invert the neutral with the phase in the electrical supply line. Any inversion would cause a lockout due to firing
failure.
The burners RS 25-35/E have been type-approved for intermittent operation. This means they should compulsorily
be stopped at least once every 24 hours to enable the control box to perform checks of its own start-up efficiency.
Normally the boiler's thermostat/pressure switch ensures the stopping of the burner.
If this is not the case, it is necessary to apply in series with IN a timer switch that turns off the burner at least once
every twenty-four hours. Refer to the electrical layouts given in Appendix A.
DANGER
The electrical safety of the device is obtained only when it is correctly connected to an efficient earthing system,
made according to current standards. It is necessary to check this fundamental safety requirement. In the event of
doubt, have the electrical system checked by qualified personnel. Do not use the gas tubes as an earthing system
for electrical devices.
The electrical system must be suitable for the maximum input power of the device,as indicated on the label and in
the manual, checking in particular that the section of the cables is suitable for the input power of the device.
For the main power supply of the device from the electricity mains:
- do not use adapters, multiple sockets or extensions;
- use an omnipolar switch with an opening of at least 3 mm between the contacts, as indicated by the current safety
standards.
Do not touch the device with wet or damp body parts and/or in bare feet.
Do not pull the electric cables.
If the cover is still present, remove it and proceed with the electrical wiring according to the layouts shown in Appendix A.
Use flexible cables according to standard EN 60 335-1.
6372
declines all responsibility for modifications or connections different from those shown in the electrical lay-
18
GB
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