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2915847
18
GB
Installation
4.10 Electrical wiring
Notes on safety for the electrical wiring
Before carrying out any maintenance, cleaning or checking opera-
tions:
If the cover is still present, remove it and proceed with the electrical
wiring.
By way of example we indicate the following mode (according to
UL795
):
4.10.1 Field Wiring Connections
The RS 45/M BLU burners have been type- approved for intermit-
tent operation. This means they should compulsorily be stopped at
least once every 24 hours to enable the flame safeguard to check
its own efficiency at start-up. Burner halts are normally provided for
automatically by the boiler load control system.
If this is not the case, a time switch should be fitted in series to IN
to provide for burner shut-down at least once every 24 hours.
Tab. J
DANGER
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.
The Manufacturer declines all responsibility for modifications or connections different from those shown in the electri-
cal layouts.
Check that the electrical supply of the burner corresponds to that shown on the identification label and in this manual.
Do not invert the neutral with the phase in the electrical supply line.
Any inversion would cause a lockout due to firing failure.
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
1
/
8
” (overvoltage category) 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.
DANGER
Disconnect the electrical supply from the burner by
means of the main system switch.
DANGER
Turn off the fuel interception tap.
DANGER
Avoid condensate, ice and water leaks from form-
ing.
WARNING
The control panel is in compliance with UL508A.
DANGER
When installing for the first time and after any main-
tenance work, make sure the gas valves are con-
nected properly to the orange terminals before
proceeding to ignite the burner. Insert auxiliary
lamps or check, with the aid of a tester, that power
is not being supplied to the valves during standby or
pre-purging. Burner ignition with the gas valves
open during pre-purging may cause the generator to
burst.
– Do not invert the neutral with the phase wire
in the electricity supply line.
– Only use original spare parts to replace the
components.
RS 45/M BLU
FU1 (A)
T10
T10
FU2 (A)
T6
Содержание C9541000
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