Commissioning / Operation - Nicotra Gebhardt RLM E3 Betriebsanleitung

BA-REF 6.2 - 05/2021
DANGER
DANGER
CAUTION
CAUTION
EN-18/26
8.4. Carrying out a Test Run
Risk of injury from rotating impeller!
Never reach into the impeller when the fan is open.

1. Disconnect motor / frequency inverter from the mains.
2. Take measures to prevent roof fan from being switched on accidentally.
3. Clear the ducting system and fan of all foreign bodies (tools, small parts,
construction waste, etc.).
4. Close all the inspection openings.
5. Switch on fan and check direction of rotation of impeller by comparing it
with the arrow on the fan indicating the direction of rotation.
6. If the direction of rotation is wrong, reverse the polarity of the motor /
frequency inverter having due regard to the safety instructions or by used
of OJ-DV Hterm (see page 33 in separate operating manual BA-ESR_NI-
DV).
7. Once operating speed has been reached measure the current
consumption and compare it with the nominal motor current on the roof
fan type plate or motor rating plate.
8. If there is continuous overload switch the roof fan off immediately.
9. Check that the roof fan runs smoothly and quietly. Ensure that there are
no unusual oscillations or vibrations.
10. Check the motor for any abnormal noises.

9. Commissioning / Operation

The motors are designed for continuous operation S1. If operations involve
more than three starts per hour Nicotra Gebhardt GmbH shall be required to
confirm the suitability of the motor.
9.1. Commissioning the Roof Fan
Risk of injury from rotating parts and hot surfaces!
 Ensure that all the safety devices are fitted!
 Ensure that the impeller has been secured acc. to DIN EN ISO 13857!
Incorrect sinusoidal filter may cause material damage!
 Roof fans with frequency converters should only be operated with a
compatible sinusoidal filter active on all poles.
Material damage may be caused by overload from excessive starting
currents!
 Adhere to the output limits imposed by the power supply company.
Course of action
1. Check working order of all control instruments connected.
2. Switch on roof fan.
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