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25
20089387
GB
Installation
5.13
Calibration of the thermal relay
The thermal relay (Fig. 26) 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.
5.14
Motor rotation
As the burner is not fitted with a phase sequence checking de-
vice, the motor rotation may be incorrect.
If this is not the case:
turn the burner switch to position “0” (OFF) and wait for the
control box to carry out the switch-off phase;
disconnect the power supply to the main panel;
invert the phases on the three-phase power supply.
WARNING
The automatic reset can be dangerous.
This operation is not foreseen in the burner oper-
ation.
3
1
4
2
Fig. 26
D11821
WARNING
As soon as the burner starts up, go in front of the
fan motor cooling fan and check it is rotating anti-
clockwise (Fig. 27).
DANGER
This operation must be carried out with the electri-
cal supply disconnected.
Fig. 27
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Summary of Contents for RS 1300/E C01
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