4.17 Calibration Of The Thermal Relay - Riello RLS 310/EV O2 MX Modulating Operation

4.17 Calibration of the thermal relay

The thermal relay serves to avoid damage to the motor due to an
excessive absorption increase or if a phase is missing.
For calibration 2), see the table in the wiring diagram.
To reset, in case of an intervention of the thermal relay, press the
"RESET" button 1)(Fig. 11). The red "TEST" button 3) opens the
NC (95-96) contact and stops the motor.
The automatic reset (Position "A" button 1) can be
dangerous. This operation is not anticipated in the
burner's operation, leave it always on "H". There-
CAUTION fore do not position the "RESET" button 1) on
"A".
20182250
Technical description of the burner
20 GB
2
3
20073932
1
Fig. 11