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(5) Procedure for oil replacement of Daikin
scroll compressor (with oil gauge)
If the refrigerator oil is contaminated due to
seizure of the compressor's motor etc., replace
the oil by following the procedure shown below.
1. Collecting oil
1) Operate the compressor for about 10
minutes with pull-down.
2) Stop the unit and collect all the refrigerant.
Collect completely the refrigerant gas
remaining in the unit through ports r and t.
3) Drain the contaminated oil after checking
that the pressure inside the compressor is
0kPa.
A: Remove the compressor, and tilt it to
drain and collect the contaminated oil
from the suction flange.
B: When using an oil collector
Remove the oil gauge and insert the
tube of the oil collector into the oil
gauge openning to collect the
contaminated oil inside the compressor.
Note: Use an oil pan to prevent the oil
from escaping when the oil gauge
is removed.
2. Filling new oil
A: q Fill 2.0L of new oil through the suction
flange with the compressor removed.
w Attach the compressor to the unit.
(Replace the discharge and suction
flange gaskets with new ones.)
Tightening torques:
Compressor mount base : 42.7N.m
Suction/discharge flange : 25.2N.m
φ 9.5 flare nut : 36.3N.m
φ 6.4 flare nut : 15.7N.m
B: If an oil collector is used
q Attach a new oil gauge
(Tightening torque: 26.4 to 32.3N.m)
w Use a vacuum pump to let 2L of the
new oil to be sucked through the oil
drain port of the compressor, and
tighten the cap of the oil drain port with
torque wrench. (15.7N.m)
(Clean it. Get rid of impurities,
contaminants and moisture.)
Vacuum pump
Oil collector
04LXE10E100以降(08-26)E.qx08.8.275:04PMページ4-12
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