Installation and Maintenance
AXUS Circular Short Cased Axial Flow Fans
3
19
.
10
. 1
6
. Leaflet Number 671351
6.0 Maintenance
Due to the different periods of operation from the time of
installation and varying use, no rigid inspection and
maintenance periods can be recommended. We suggest
therefore that the inspection, and if necessary cleaning/
bearing check should be carried out at regular intervals of a
maximum of six months.
For routine inspection check the tightness of all nuts, keys,
grubscrews and endbolts etc. Remove any build up of dirt
or
dust with a soft brush and ensure that the clearance
between the impeller and fan casing has not been
compromised.
When using a high pressure jet washer, you must maintain a
minimum of 3 meters from the area being washed
,
with the
nozzle at 45
°
angle to the surface. Operate in a slow
sweeping motion so as not to spray to
o
long on one spot.
7.0 Spares
The only components of the fan that could require replacing
are the motor or the fan impeller.
When ordering spares please quote the serial number,
Order/Arc number, together with a full description of
the part.
8.0 Extended Storage
General advice is as follows:
Fan products designed for environmental ventilation of
a completed structure must not be used during site
construction or the ‘clean-up’ period. Cement and plaster
dust is extremely abrasive and can advance bearing wear.
Where fans are to be put in to service for commissioning
they must be protected from the airborne contaminants
prevalent under construction site conditions.
Where fans are to be put in to ‘normal’ service
in a completed
or part completed building the end user, tenant, occupier etc.
must be informed of the maintenance requirements detailed
in the relevant product installation and
maintenance documents.
Where fans are to be stored or bonded for extensive
periods either in warehouse, under site conditions or
in the installed state we make the following additional
recommendations;
n
Motors should be stored at ambient temperatures
between - 16
o
C and +50
o
C and at relative humidity
(RH) below 90% RH.
n
Turn fan and motor shafts at three monthly intervals
to prevent the brinelling effect on the bearings. Brinelling
is a flattening or settlement of the shaft in the bearing
housing.
For extensive storage periods and particularly
where the
motors may be exposed to high RH levels, special
precautions and restart requirements may be required.
For further advice contact the Nuaire technical help line
below.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused,
disassembled, or not installed, commissioned and
maintained in accordance with the details contained in this
manual and general good practice.
9
.0 Service Enquiries
Nuaire can assist you in all aspects of service. Our
Technical Support department will be happy to provide
any
assistance required.
Telephone 029 2085 8400
Fax 029 2085 8444
Technical or commercial considerations may, from time to time, make it necessary to alter the design, performance and
dimensions of equipment and the right is reserved to make such changes without prior notice.
