N16/24/27/29/40
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 pos-
sible on N29 fan). Use a breathing mask.
• Check the fan’s suction capacity. On 3-phase fans,
check that the motor shaft rotates in the right direc-
tion. Check that the ducts are not blocked. Clean if
necessary (use a breathing mask).
• Check the electrical installation.
• Check that the mains connection cable is not worn or
damaged.
• If the fan has been mounted withstand on a wall or
in the ceiling, check the fitting.
• Check and tighten any loose duct connections.
• Check that the guard nets are in position.
7Spare Parts
CAUTION!Risk of equipment damage
Use only N$e$d$e$r$m$a$n$ original spare parts and ac-
cessories.
Contact your nearest authorized distributor or
N$e$d$e$r$m$a$n$ for advice on technical service or
if you require help with spare parts. See also
w$w$w$.$n$e$d$e$r$m$a$n$.$c$o$m$.
7.1Ordering spare parts
When ordering spare parts always state the following:
• The part number and control number (see the
product identification plate).
• Detail number and name of the spare part (see
w$w$w$.$n$e$d$e$r$m$a$n$.$c$o$m$/$e$n$/$s$e$r$v$i$c$e$/$s$p$a$r$e$-$p$a$r$t$-
$s$e$a$r$c$h$).
• Quantity of the parts required.
8Recycling
The product has been designed for component mater-
ials to be recycled. Different material types must be
handled according to relevant local regulations. Con-
tact the distributor or$N$e$d$e$r$m$a$n$ if uncertainties arise
when scrapping the product at the end of its service
life.
EN
21
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