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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 (Between the yellow line and red line of the oil level gauge). 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.
• Check whether the sheath of the OILCON power lead is not broken.
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 .)
NOTE: Wear gloves when working as the fins of the condenser may cause injury while replacing the air filter.
• 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 .)
• Check whether there are any substances in the condenser by removing the air filter (You do not need to remove the
external plate).
• 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.)
• However, do not use water or cleaning agents for cleaning. The fan motor or pump motor may cause an earth leakage.
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.
Evaporator
(See page .)
• Perform periodical inspection as the oil piping becomes blocked (fully closed) because the oil-cooled coil is clogged with
dirt. The inside of the evaporator cannot be checked as it is sealed. Check the oil level at the customer's piping from the
OILCON output (You do not need to remove the external plate).
Heater
(See page .)
• The dust clogging in the heater causes the same status as heating without water. Carry out the inspection periodically.
Oil drain
(See page .)
• Inspect the bottom of OILCON (drain pan) every six months and if the oil is accumulated, discharge it from the oil drain
port. The tightening torque of the hexagonal bolt for the drain is 2N·m.
If it is tightened with excessive torque, the bottom frame may be damaged.
Packing of the electric component box
• If the packing of the electric component box is seriously damaged, consult DAIKIN contact center. If you use the product
without a change, the protection structure of IP54 cannot be maintained and the electric component may break down.
• 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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