Outdoor Use / Draining; Maintenance - Nederman N10 N16 Manual De Instrucciones

Check the earthing of the electric motor.
Start the fan and check that it operates without any excessive vibration and
noise.
NOTE! On 3-phase fans it is recommended to check that the motor shaft
rotates in the right direction (see rotation arrow on the motor). If the shaft
rotates in the wrong direction, two of the connection cable conductors must
be reversed. See Figure 6.
5.2

Outdoor use / Draining

If the fan is to be used without any protection outdoors or under other
circumstances where moisture and condensation can be present, it must be
checked that the motor is provided with draining holes. Make sure these holes
are open. In the lowest level in one of the fan casings a draining hole must be
drilled (approx. Ø 5 mm), see Figure 8. Then treat the hole with anticorrosive
agent.
If the motor is not provided with draining holes the fan must be protected
with a suitable cover.
NOTE! Cable gland, recommended protection class IP 68. See Figure 7.
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
N10/16/24/27/29/40 EN
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