Calibration Of The Thermal Relay - Riello RLS 70 Installation, Use And Maintenance Instructions

5.14

Calibration of the thermal relay

This is required to avoid motor burn-out in the event of a
significant increase in power absorption caused by a missing
phase.
 Burners are pre-set in the factory for 3ph - 400 V power
supply, so the motor has a start supply line and slider 2)
must be positioned on "MIN".
 If you want to change to 3ph- 230 V, it is necessary to
change the motor star supply and position slider 2) of the
thermal relay to "MAX".
 To reset, in case of an intervention of the thermal relay,
press button 1)(Fig. 31).
Even if the scale of the thermal relay does not include rated motor
absorption at 400 V, protection is still ensured in any case.
The automatic reset can be dangerous.
This operation is not foreseen in the burner
operation.
ATTENTION
RLS 70
230V 400V
F A T10
L 2 1.5 1.5
mm
20139915
RLS 100 RLS 130
230V 400V 230V
T6 T16 T10 T16
1.5 1.5 1.5
Installation
400V
T10
1.5
Tab. L
28 GB
D867
Fig. 30
20141664
Fig. 31