Suzuki SWIFT RS415 2017, Руководство по обслуживанию

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Air Conditioning System: 7B-14
Normal:
0.23 – 0.36
(2.3 – 3.6)
(33 – 51)
n p
Abnormal:
Negative pressure
Normal:
1.24 – 1.52
(12.4 – 15.2)
(176 – 216)
n p
Abnormal:
0.7 – 1.0
(7 – 10)
(100 – 142)
During A/C operation, the
low pressure side
sometimes indicates
negative pressure, and
sometimes normal
pressure. Also high
pressure side reading
fluctuates between the
abnormal and normal
pressure. Expansion valve is
frozen due to moisture
in the system, and
temporarily shuts off
the refrigeration cycle. Replace expansion
valve.
Replace desiccant.
Evacuate A/C system
and recharge with
fresh refrigerant.
0.05 – 0.15
(0.5 – 1.5)
(4.2 – 21.3) 0.7 – 1.0
(7 – 10)
(100 – 142) Both low and high
pressure sides indicate
low readings.
Output air is slightly cold. Insufficient refrigerant
in system
(Refrigerant leaking). Using leak detector,
check for leaks and
repair as necessary.
Recharge refrigerant to
a specified amount.
If the pressure reading
is almost 0 when the
manifold gauges are
attached, check for any
leaks, repair them, and
evacuate the system.
0.4 – 0.6
(4 – 6)
(56.9 – 85.3) Pressure on low pressure
side is high.
Pressure on high pressure
side is low.
Both pressure becoming
equal right after A/C is
turned OFF. Internal leak in
compressor. Inspect compressor
and repair or replace
as necessary.
0.35 – 0.45
(3.5 – 4.5)
(50 – 64) 2.0 – 2.5
(20 – 25)
(285 – 355) High pressure reading on
both low and high pressure
sides. Overcharged A/C
system. Adjust refrigerant to
specified amount.
Faulty condenser
cooling operation. Clean condenser.
Faulty radiator cooling
fan operation. Inspect and repair
radiator cooling fan.
High pressure reading on
both low and high pressure
sides.
Low pressure side tubing
is not cold when touched. Presence of air in A/C
system
(Improperly
evacuated). Replace desiccant.
Inspect quantity of
compressor oil and
presence of
contaminants in oil.
Evacuate system and
recharge with fresh
refrigerant.
0.45 – 0.55
(4.5 – 5.5)
(64 – 78) High pressure reading on
both low and high pressure
sides.
Large amount of frost or
dew on the low pressure
side tubing. Faulty expansion
valve.
Refrigerant flow is not
regulated properly. Replace expansion
valve.
Condition
Possible cause Correction Manifold gauge MPa (kg/cm 2 ) (psi)
Detail
Lo Hi