18
11.2 Preconditions
♦
Installation and electrical connection have been
correctly performed.
♦
Residual material from installation and foreign objects
have been removed from the fan and ducts.
♦
Inlet and outlet are free.
♦
Safety devices have been fitted.
♦
Ground cable is connected.
♦
Cable glands are tight.
♦
Nominal current (from the name plate) is not
exceeded.
♦
Data on the name plate corresponds with the
connection data.
♦
For EX fans, check whether the minimum air gap
between the rotor and the housing matches the value
stated in 6.4
11.3 Tests
♦
Before switching the fan on, check for externally visible damage and ensure that the protective equipment functions
properly.
1. Switch the fan on.
2. Checks:
♦
Direction of rotation/conveyance. The direction of rotation always applies looking at the impeller.
• The direction of rotation is best observed just before the fan stops.
♦
Smooth running (any vibrations and noise)
♦
Current consumption
♦
Compare the current consumption with the nominal consumption on the name plate.
♦
Tightness of all connections
3. Switch the fan off.
12
Operation
12.1 Safety information
Danger
Hazard of explosion of an ignition-capable gas/air atmosphere!
When commissioning the EX fan, the fundamental information from DGVU 113-001 (explosion protection
rules (EX-RL)) and TRGS 727 (Avoiding ignition hazards due to electrostatic charges) must be known.
Warning: Hazard from electrical voltage or moving components.
♦
The device may only be operated by adequately qualified persons, details see Table 1
♦
Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
Warning: Risk by careless use of aggressive media.
Careless use of aggressive media can lead to very severe injuries.
♦
Pay attention to the safety data sheet of the chemical substances transported with the fan.
12.2 Preconditions
♦
Ensure access only to persons who can safely handle
the device.
♦
Only use the fan in accordance with the operating
instructions and the operating instructions for the
motor.
♦
Do not dismantle or circumvent safety elements, or
put them out of function.
♦
The EX fans have been admitted for S1 continuous
operation.
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