20159575
20
GB
Installation
5.10
Electrical wiring
Notes on safety for the electrical wiring
Before carrying out any maintenance, cleaning or checking oper-
ations:
If the cover is still present, remove it and proceed with the electri-
cal wiring according to the wiring diagrams.
Use flexible cables according to EN 60 335-1 Regulations:
–
if in a PVC sheath, use at least H05 VV-F;
–
if in a rubber sheath, use at least H05 RR-F.
5.10.1 Supply cables and external connections
passage
All the cables to be connected to the plugs 7)(Fig. 24) of the burn-
er are passed through cable grommets to be inserted in the holes
of the plate, left or right, after having unscrewed the screws 8),
opened the plate at parts 9) and 10) and removed the thin dia-
phragm that closes the holes.
The use of the cable grommets and the pre-blanked holes can be
done in different manners; by way of example we indicate the fol-
lowing mode:
1
Pg 11
Single-phase power supply
2
Pg 11
Gas valves
3
Pg 9
TL remote control
4
Pg 9
TR remote control
5
Pg 11
Gas pressure switch valve leak detection control
DANGER
The electrical wiring must be carried out with the electrical supply disconnected.
Electrical wiring must be made in accordance with the regulations currently in force in the country of destination
and by qualified personnel. Refer to the wiring diagrams.
The manufacturer declines all responsibility for modifications or connections different from those shown in the wir-
ing diagrams.
Check that the electrical supply of the burner corresponds to that shown on the identification label and in this man-
ual.
The burner has been type-approved for intermittent operation (FS1).
This means they should compulsorily be stopped at least once every 24 hours to enable the control box to per-
form checks of its own start-up efficiency. Normally, burner stopping is guaranteed by the boiler's thermostat/pres-
sure switch.
If this is not the case, a time switch should be fitted in series to TL to stop the burner at least once every 24 hours.
Refer to the wiring diagrams.
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 power absorption of the device, as indicated on the label
and in the manual, checking in particular that the section of the cables is suitable for that level of power absorp-
tion.
For the main power supply of the device from the electricity mains:
– do not use adapters, multiple sockets or extensions;
– make provisions for an omnipolar switch with a gap between the contacts of at least 3 mm (over-voltage category
III), as required by current safety regulations.
Do not touch the device with wet or damp body parts and/or in bare feet.
Do not pull the electric cables.
DANGER
Turn off the burner's power supply using the main
system switch.
DANGER
Turn off the fuel interception tap.
DANGER
Avoid condensate, ice and water leaks from form-
ing.
Fig. 24
D3955
Содержание RS 45/M C05
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