Daikin Applied (UK) Ltd.
REV A
– PAGE 9. SECTION 11 ADDED. 11/03/14
Page 22 of 37
Maintenance Procedures (continued)
Six Monthly Checks
Carry out checks as described under monthly checks and also the following: -
1) Check conditions of bearings and ensure they are not excessively noisy.
Note:
Faulty bearings must be replaced immediately. Failure to comply may result
in the fan shaft becoming damaged.
2) Grease bearings - only one stroke of the grease gun is required per six (6) months
continuous operation. To apply more grease than recommended may lead to early
failure of the bearing.
Note:
The fan bearings are already pre-charged for the first six (6) months
operation and motor bearings for the first two (2) years operation.
Recommended lubricant for normal operation is Shell Alvania R.A.
Annual Checks
1) Check coils to ensure the fins are not blocked or have become dirty. Fins should be
cleaned using a brush and a vacuum cleaner. Failure to keep a coil clean will result
in loss of performance. Any damage to the fin edges can usually be realigned using
a 'fin comb'. These can be supplied by
Daikin Applied (UK) Ltd
if required.
Caution: Fin edges are very sharp.
2) Clean and check condensate drain pans to ensure the outlet is not blocked and that
water will drain away.
3) Check the electric heating coil elements to ensure insulation resistance and
continuity readings are constant.
4) Check operation of gas burner controls and safety devices.
5) Check for signs of corrosion and treat as necessary.
6) Check operation of all dampers, ensuring that they open and close properly.
7) Check that all controls are operating satisfactorily.
8) Clean units internally and externally with warm water.
Note! Do not use a solvent cleaner on pre-coated mild steel.
