20144819
20
GB
Installation
5.9
Electrical wiring
Notes on safety for the electrical wiring
Before carrying out any maintenance, cleaning or checking oper-
ations:
Use flexible cables according to EN 60 335-1 Regulations:
•
if in PVC sheath, use at least H05 VV-F
•
if in rubber sheath, use at least H05 RR-F.
All the cables to be connected to the plugs 7)(Fig. 19) 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.
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 use.
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 cate-
gory 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
Disconnect the electrical supply from the burner
by means of the main system switch.
DANGER
Close the fuel interception tap.
DANGER
Avoid condensate, ice and water leaks from form-
ing.
Summary of Contents for GAS 3
Page 2: ...Translation of the original instructions...
Page 37: ...35 20144819 GB Appendix Electrical panel layout GAS 3 4 SINGLE PHASE D2855 DIAGRAM A...
Page 38: ...20144819 36 GB Appendix Electrical panel layout GAS 5 6 THREE PHASE D2861 DIAGRAM A...
Page 39: ...37 20144819 GB Appendix Electrical panel layout 20144739 GAS 3 4 SINGLE PHASE DIAGRAM B...
Page 40: ...20144819 38 GB Appendix Electrical panel layout DIAGRAM B GAS 5 6 THREE PHASE 20144741...
Page 41: ...39 20144819 GB Appendix Electrical panel layout GAS 3 4 SINGLE PHASE DIAGRAM C 20144742...
Page 42: ...20144819 40 GB Appendix Electrical panel layout DIAGRAM C GAS 5 6 THREE PHASE 20144743...