Electrical System; Electrical Connections - Riello RL 190 Instrucciones De Instalación, Uso Y Mantenimiento

6

Electrical system

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 wiring diagrams.
DANGER

layouts.
 Do not invert the neutral with the phase in the electrical supply line. Any inversion would cause a lockout due to
firing failure.
 The RL 190 burners 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 effi-
ciency. 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 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.
 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 (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.
Before carrying out any maintenance, cleaning or checking oper-
ations:
Disconnect the electrical supply from the burner
by means of the main system switch.
DANGER
6.1

Electrical connections

Set up by the installer
Use flexible cables according to regulation EN 60 335-1:
 if in PVC boot, use at least H05 VV-F
 if in rubber boot, use at least H05 RR-F.
All the cables to be connected to the burner terminal strip
8)(Fig. 14) must be routed through the fairleads.
After carrying out maintenance, cleaning or
checking operations, reassemble the hood and all
the safety and protection devices of the burner.
2916074
Electrical system
declines all responsibility for modifications or connections different from those shown in the electrical
Turn off the fuel interception tap.
Avoid condensate, ice and water leaks from form-
ing.
DANGER
The fairleads and precut holes can be used in various ways. One
example is given below:
1 Pg 13,5
2 Pg 11
3 Pg 11
4 Pg 9
5 Pg 9
6 Pg 11
7 Pg 13,5
The burner is factory set for two-stage operation
D3312
and the TR remote control device that commands
light oil valve V2 must therefore be connected.
WARNING
Alternatively, if single stage operation is required,
Fig. 14
instead of control device TR install a jumper lead
between terminal T6 and T8 of the terminal strip.
Do not invert the neutral with the phase in the
electrical supply line.
WARNING
14 GB
Three-phase power supply
Single-phase power supply
Control device TL
Control device TR
Set up for faird lead
Set up for faird lead
Set up for faird lead