Calibration Of The Thermal Relay; Motor Rotation - Riello RS 1000/M BLU Manual

5.13

Calibration of the thermal relay

The thermal relay (Fig. 24) serves to avoid damage to the motor
due to an excessive absorption increase or if a phase is missing.
For calibration 2), refer to the table indicated in the electrical lay-
out (electrical wiring in charge of the installer).
To reset, in case of an intervention of the thermal relay, press but-
ton "RESET" 1).
The button "STOP" 3) opens the NC contact (95-96) and stops
the motor.
Insert a screwdriver in the window "TEST/TRIP" 4) and move it in
the arrow direction (to the right) to carry out the thermal relay test.
The automatic reset can be dangerous.
This operation is not foreseen in the burner oper-
ation.
WARNING
5.14

Motor rotation

As soon as the burner starts up, go in front of the cooling fan of
the fan motor and check it is rotating anticlockwise (Fig. 25).
If this is not the case:
 set the burner switch to "0" (off) and wait for the control box
to carry out the switch-off phase.
Disconnect the electrical supply from the burner
by means of the main system switch.
DANGER
 Invert the phases on the three-phase motor power supply.
Installation
23 GB
3 1
4 2
D11821
20079199
Fig. 24
Fig. 25
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