Daikin Applied (UK) Ltd.
REV A
– PAGE 9. SECTION 11 ADDED. 11/03/14
Page 21 of 37
Maintenance Procedures (continued)
Weekly checks
1) Inspect Fans. Clean as necessary (using warm water), and inspect the fan impeller
for signs of dust build up on the blades at regular intervals, otherwise out of balance
will result. Refer to detailed bearing information and lubricate accordingly.
2) Check fan bearings are not running at elevated temperatures.
3) Check that there is no excessive vibration from the fan unit.
4) Inspect coils for signs of leakage.
Monthly Checks
1)
Check all moving parts for wear and tightness.
2) Check condition and tightness of drive belts and pulleys.
If replacing drive belts ensure that a matched set of new belts is fitted. A mixture of
new and used belts must not be employed on the same drive. The replacement
belts must be of the same section and pitch length as were originally supplied with
the unit. The new belts should be tensioned and the belt guard/screen, where
provided, must be replaced.
3) Check filter pressure drops and replace filters as necessary. It is recommended that
only
Daikin Applied (UK) Ltd
filters be fitted to the unit. When replacements are
needed then contact
Daikin Applied (UK) Ltd
head office to enable us to discuss
your requirements and thus ensure that the correct grade of filter media is supplied.
Under no circumstances must the filters be removed whilst the fan is still running.
Likewise the fan must not be switched on unless the filters are already fitted and the
filter access panel is closed.
4) Monitor overall vibration levels. An increase in the level of vibration is an indication
of potential trouble. This must be investigated and corrective action taken.
5) Top up all drain traps. (During the winter period this may have to be done more
frequently as the cooling coil is unlikely to be in operation and this could result in
the trap emptying due to evaporation.)
6) Inspect coils for any signs of leakage.
