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8.0 MAINTENANCE
A planned program of regularly scheduled maintenance will return dividends by averting possible costly and
unexpected periods of down time. It is the responsibility of the owner to provide the necessary maintenance for the
unit. If a system failure occurs due to improper maintenance during the warranty period, Daikin will not be liable for
costs incurred to return the unit to satisfactory operation.
PERIODIC MAINTENANCE – MONTHLY
Filters
Check the cleanliness of the filters and replace or clean as required.
Compressors
Oil Level Check
The oil level can only be ascertained when the compressor is running in stabilized conditions, to ensure that there is
no liquid refrigerant in the lower shell of the compressor. When the compressor is running in stabilized conditions,
the oil level must be between 1/4 and 3/4 of the oil sight glass. Note: at shutdown, the oil level can fall to the bottom
limit of the oil sight glass.
PERIODIC MAINTENANCE – MONTHLY TO THREE MONTHS
Cleanliness
Inspect the drain pans for sludge and foreign material. Clean if required.
Drive Package
Drive alignment
Belt tensioning adjustment
CAUTION: Do not over tighten the belts
or the bearings may become damaged.
The best tension for a belt drive is the
lowest tension at which the belts will not
slips under the highest required load.
Refer Table 8 and 9 for belt tensioning
guide specification.
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