Air Conditioning System: Manual Type 7B-24
Replenishing Compressor Oil
It is necessary to replenish specified amount of
compressor oil to compressor (1) from compressor
suction side hole (2) before evacuating and charging
refrigerant.
When charging refrigerant only
When charging refrigerant without replacing any
component part, replenish the same amount of
measured oil when recover refrigerant (if not measure,
replenish 30 cm
3
(30 cc) oil).
When replacing compressor
Compressor oil is sealed in each new compressor by the
amount required for A/C system. Therefore, when using
a new compressor for replacement, drain excess oil from
it by the amount calculated as follows.
“C” = “A” – “B”
“C”: Amount of oil to be drained
“A”: Amount of oil sealed in a new compressor
“B”: Amount of oil remaining in removed
compressor
NOTE
Compressor assembly supplied from factory
is filled up with the following amount of oil.
Oil amount in compressor
100 cm
3
(100 cc)
When replacing other part
Replenish the following amount of oil to compressor.
Amount of compressor oil to be replenished
Replaced part: Amount of compressor oil
Evaporator: 25 cm
3
(25 cc)
Condenser: 15 cm
3
(15 cc)
Desiccant: 20 cm
3
(20 cc)
Hoses: 10 cm
3
(10 cc) each
Pipes: 10 cm
3
(10 cc) each
Evacuating of A/C System
CAUTION
!
Do not evacuate before recovering
refrigerant in system.
NOTE
Whenever opened (exposed to atmospheric
air), the A/C system must be evacuated by
using a vacuum pump. The A/C system
should be attached with a manifold gauge
set, and then should be evacuated for
approximately 15 minutes.
1) Connect high charging hose (1) and low charging
hose (2) of manifold gauge set (3) respectively as
follows:
High charging hose (1)
→
High pressure charging
valve (4) on condenser outlet pipe
Low charging hose (2)
→
Low pressure charging
valve (5) on suction pipe
2) Attach center charging hose (6) of manifold gauge
set (3) to vacuum pump (7).
3) Operate vacuum pump (7), and then open discharge
side valve (Hi) (8) of manifold gauge set (3).
If there is no blockage in the system, there will be an
indication on high pressure gauge (9).
In this case, open the other side valve (Lo) (10) of
the set and repair the system.
4) Approximately 10 minutes later, low pressure gauge
(11) should indicate –100 kPa (–1.0 kg/cm
2
, –760
mmHg, –14.7 psi) providing no leakage exists.
I3RH0A721008-01
1
2
I2RH01720014-01
1. New compressor
2. Removed compressor
I2RH01720015-01
Содержание Liana RH413
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Страница 1300: ...Prepared by 1st Ed Nov 2003 2nd Ed Feb 2007...
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Страница 1302: ...27 mm 99500 54G10 01E 99500 54G10 01E SERVICE MANUAL VOLUME 2 OF 2 SERVICE MANUAL VOL 2 OF 2...