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If the motor is not provided with draining holes the fan must be protected with
a suitable cover.
6
Maintenance
WARNING!
Risk of personal injuries.
Always disconnect the fan motor from mains with the isolator before starting
any maintenance or repair work.
WARNING!
Risk of personal injuries.
Always use a breathing mask when repairing and servicing the system..
Installation, repair and maintenance work is to be carried out by qualified
personnel using only original Nederman spare parts. Contact your nearest
authorized distributor or Nederman for advice on technical service.
NOTE!
The service intervals in this chapter are based on the unit being
professionally maintained.
Maintenance is recommended at least once a year.
•
Listen for noise and touch the fan casings with the hand and notice if the
fan vibrates in an abnormal way. If necessary, disconnect the fan from
mains, dismount the fan and clean the impeller (not possible on N29 fan).
Use breathing mask.
•
Check the fan's suction capacity. On 3-phase fans, check that the motor
shaft rotates in the right direction. Check that the ducts are not blocked.
Clean if necessary (use breathing mask).
•
Check the electrical installation.
•
Check that the mains connection cable is not worn or damaged.
•
If the fan has been mounted with stand on wall or in ceiling, check the
fitting.
•
Check and tighten any loose duct connections.
•
Check that the guard nets are in position.
6.1
Spare parts
Ordering spare parts
See www.nederman.com.
When ordering spare parts always state the following:
•
Part number and control number (see the product identification plate).
•
Detail number and name of the spare part (see www.nederman.com).
•
Quantity of the parts required.
7
Recycling
The product has been designed for component materials to be recycled.
Its different material types must be handled according to relevant local
regulations. Contact the distributor or Nederman if uncertainties arise when
scrapping the product at the end of its service life.
N10/16/24/27/29/40
EN
13
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