Commissioning; Conditions For Commissioning In Ex-Area - Nicotra Gebhardt Rzr Betriebsanleitung

Danger
Danger
EN-20/32
8.4. Carrying out a Test Run
Risk of injury from rotating impeller!
 Never reach into the impeller when the fan is open.
1. Take measures to prevent the centrifugal fan from being switched on
accidentally
2. Clear the ducting system and fan of all foreign bodies (tools, small parts,
construction waste, etc.
3. Close all the inspection openings.
4. Switch on the fan and check the direction of rotation of the impeller by
comparing it with the arrow on the fan indicating the direction of rotation.
5. If the direction of rotation is wrong, reverse the polarity of the motor
having due regard to the safety instructions.
6. Once operating speed has been reached measure the current
consumption and compare it with the nominal motor current on the fan
type plate or motor rating plate
7. If there is continuous overload switch the fan off immediately.
8. Check that the fan runs smoothly and quietly. Ensure that there are no
unusual oscillations or vibrations.
9. Check the motor for any abnormal noises.

9. Commissioning

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.
Potentially explosive gas mixtures in conjunction with hot and moving
parts may cause serious or fatal injury.
Risk of explosion due to increased ambient temperature!
 Observe ambient temperature
 Ensure adequate supply of cooling air

9.1. Conditions for Commissioning in Ex-Area

he following requirements must be met before operating the fan in areas
subject to explosion hazards:
Specifications on the type plate to meet the standards required in the

local operating conditions in respect of explosion hazards (machine
group, explosion hazard category, explosion hazard zone,
temperature class).
All the components connected to the fan carrying a risk of ignition or

explosion to have the required approval certificates.
The ambient temperature during subsequent use to be within in the

allowed limits!
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