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Maintenance
Maintenance
If the air filter is clogged, the cooling capacity deteriorates, resulting in excess power consumption. Clean the air filter
periodically to save power consumption.
Maintenance/Inspection
Daily maintenance/inspection
Periodic maintenance/inspection
• Oil pollution causes a fault or shortened service life of the pump. Use thorough caution about oil pollution to maintain the
pollution degree at NAS10 or lower level.
• Keep a normal oil level in the oil tank. Make sure that the oil does not contain air bubbles.
• Clean inside of the oil tank periodically.
• Make sure that the main machine oil piping is not blocked (fully closed).
• Make sure that the oil piping has no oil leak.
• Make sure that the power supply voltage is within the following range:
50 Hz...........200 V ±10%
60 Hz...........200/220 V ±10%
• Make sure that the compressor, fan and oil pump do not abnormally sound during operation.
• Make sure that the Oil Cooling Unit does not abnormally shake during operation.
To leave the unit unused for a long period
Suction strainer
• Clean the suction strainer every six months to prevent the pump flow rate from being reduced by dust clogging, and to
prevent abnormal sound caused by cavitation.
Air filter
(See page .)
• Be sure to wash the air filter with water at 40˚C or lower temperature every two weeks.
If the air filter is clogged with dust, the wind volume reduces, resulting in capacity deterioration. Also, the compressor’s
protection device is activated, hindering smooth operation. Furthermore, it causes power consumption increase.
• Operating the unit without the air filter causes a fault.
• To remove the air filter, hold the bottom of the filter with both hands, and push it up while warping it forward.
Condenser
(See page .)
• If the condenser becomes extremely dirty, clean it with a brush, air blower, etc.
(When cleaning the condenser fins, wear gloves. Otherwise, you may be injured by the sharp edges.)
Exterior
• Wipe the exterior surface with a dry cloth.
Never splash water over it.
• To clean the exterior, do not use a brush, polish powder, acid, solvent (benzine etc.) or hot water. Using such substances
causes the paint to peel off.
• Mount a cover to the Oil Cooling Unit to prevent dust or water from entering inside of the unit.
• Be sure to turn OFF the main power supply.
• Be careful to keep oily dust off the condenser surface of the Oil Cooling Unit.
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Summary of Contents for AKZ8 Series
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