Electrical Connection; Safety Instructions For Electrical Connection; Connecting The Motor - Nicotra Gebhardt RLM E3 Betriebsanleitung

BA-REF 6.2 - 05/2021
CAUTION
8.
DANGER
CAUTION
EN-14/26
Warping impedes smooth running of impeller and causes fatigue
fractures!
 Avoid uneven tightening of base screws.
Install roof fan so as to guarantee its stability at all times during

operation.
7.4. Installing Safety Devices
Note Conformity with DIN EN ISO 13857 only relates to the safety guard installed
insofar as it is supplied with the fan.
The operator of the system is responsible for full compliance with
DIN EN ISO 13857.
1. Fit guards to protect exposed inlet openings (DIN EN ISO 13857).
2. Design safety devices in such a way that they prevent objects from being
sucked in or from falling in.
Ensure that all the mechanical safety devices are fitted.
3.

Electrical Connection

8.1. Safety Instructions for Electrical Connection

Caution! Danger of electric shock!
 Observe the safety instructions and preventive measures in Chapter 4
and the relevant legal requirements.
 EN 60204-1

8.2. Connecting the Motor

Note All the roof fans are delivered ready for connection. The terminal box and
inspection switch are located under the cowl and housing cover respectively.
The connection diagram is located in the terminal box.
Note The system should always be evaluated in its entirety and specific
application in terms of assessing whether it conforms to the applicable EMC
standards and directives.
This is the responsibility of the customer.
Frequency inverter operation
RHM/RVM/FDM/RDM type roof fans should only be operated using a
compatible sinusoidal filter active on all poles between the converter and
motor.
Standard dU/dt filters are not permitted for use on the converter.
Separate EMC protective measures may be required with the combination of
revision switches and frequency converters.
 Current, voltage and frequency of mains supply checked for conformity
with fan type plate and motor rating plate.
 Star-delta or soft start provided for motors with a nominal output >4 kW.
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