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2WAY SYSTEM
Outdoor Unit Repair Procedures
3
7. Charging Compressor Oil
2WAY SYSTEM
Outdoor Unit Repair Procedures
7. Charging Compressor Oil
7-3. Charging Additional Compressor Oil (after replacing compressor)
The rated weight of compressors as given below:
When replacing a faulty compressor, be sure to first measure the weight of the compressor.
If the surplus oil is removed along with the compressor, add the same amount of new oil.
For example:
Additional oil to be charged: 27.3 kg (removed compressor weight) – 27.1 kg (new compressor weight) = 0.2 kg ≒ 0.2 L
* If the result is a negative weight (removed compressor weight is less than the rated weight), it is not necessary
to discharge the extra oil from the system.
The oil absorbs moisture readily. This work must be completed quickly.
CAUTION
Fig. 13
Outdoor Unit Type Compressor model Weight (OIL IN) [kg]
5JD650ZCA22
All Units 27.1
Y SYSTEM
es
that came
.
ant Has Already Been Charged
15/03/05 18:25:14
When this is done, the refrigerant pressure from operation
forces the oil out of the oil charge tank, and oil is charged
Vacuum pump
Manifold gauge
Lo Hi
Liquid tube service port
(for ø7.94mm-dia connector)
Low-pressure outlet port
(for ø7.94mm-dia connector)
High-pressure outlet port
(for ø7.94mm-dia connector)
Gas tube service port
(for ø7.94mm-dia connector)
Oil balance tube service port
(for ø7.94mm-dia connector)
Oil
Type 8HP / 10HP
SM830244-00_2WAY_7-Series.indb 23 15/09/29 16:54:28
7-2. If Outdoor Unit Has Not Been Charged with Refrigerant
When a compressor has been replaced or in any other case where the outdoor unit has not been charged with
refrigerant, first charge with refrigerant then follow the instructions in “7-1. If Refrigerant Has Already Been Charged
to Outdoor Unit” and charge with oil.
Or, alternatively, follow the procedure below.
(1) Connect a tube to the oil outlet port on the outdoor unit to be charged with oil. Insert the other end of the tube into
the oil container.
(2) Follow the instructions in “6. Evacuating System,” and apply vacuum to the outdoor unit to be charged with oil.
When this is done, oil is charged into the outdoor unit through the oil outlet port.
(3) When the unit has been charged with the designated amount of oil, stop the vacuum pump.
SM830253-00_欧州2way7_SM-TRSM.indb 28 16/08/26 19:25:17
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