Daikin Applied (UK) Ltd.
REV A
– PAGE 9. SECTION 11 ADDED. 11/03/14
Page 23 of 37
Component Installation & Maintenance
Fan Installation
1)
On receipt check the fan for any damage in transit.
2)
Bolt the fan to a level base and ensure that no undue load is placed on the fan
casing by unsupported ducting.
3)
Belt drive pulleys should be fitted as close to the bearing as possible, correctly
aligned and with the belts tensioned correctly.
4)
Remove all dust from the bearings and check that no foreign items have been left
in the fan casing.
5)
Ensure that all moving parts can rotate freely and that no fouling occurs.
6)
Test run the fan to check:-
a)
the direction of rotation
b)
belt slip does not occur
c)
there is no excessive vibration or overheating
7) If the fan is not commissioned immediately, it should be stored in a clean dry area,
and the fan shaft should be rotated at least every two (2) months to minimise
bearing damage. If the fan is in storage for six (6) months or more, then the bearings
should be completely cleaned and lubricated.
Fan Maintenance
Note: Ensure that the fan is stopped and electrically isolated before any
inspection is carried out
.
1)
Frequent inspection should be made of the fan, in particular the belt tension,
during the first four (4) hours of operation.
2)
General inspection of the fan will depend on how essential the service, the
application operating environment and the number of hours run. However
inspection should be carried out at not more than three (3) monthly intervals.
3)
On fans operating under normal ventilation conditions, the bearings will only
need to be flushed out and replenished with grease every twelve (12) months.
4)
On fans operating in a dusty atmosphere, or exposed to the weather, then the
bearings will need to be flushed out and replenished every six (6) months.
