12-16
4.mixed Air in the air conditioning system
ⓐ
Pressure ●Low pressure : 2.5 kg/㎠(High)
●High pressure: 23 kg/㎠(High)
ⓑ
Situation ● Deficient of cooling condition
(Not cool)
● Not cool when touch the low pipe
ⓒ
Cause ●Air was mixed in the air conditioning
system
ⓓ
Estimate ●Defect of the vacuum work in the air
conditioning system
ⓔ
Remedy ●Remove the vacuum and replenish the
refrigerant
●Contaminated oil in the condenser:
Clean and replace
●Replace the receive dryer
5.mixed H2O in the air conditioning System
ⓐ
Pressure ●Low pressure : Low~1.5 kg/㎠
(Low or vibrate seriously)
●High pressure: 7~15 kg/㎠
(Low or vibrate seriously)
ⓑ
Situation ● Air conditioning is cool and is not
periodically
● Manifold gauge pressure is
occasionally down or normal
ⓒ
Cause ●The expansion valve is freezing
occasionally Mixed with H2O in the air
conditioning system
ⓓ
Estimate ●Receive dryer is over-saturation
●H
2O was freezing in the expansion
valve
ⓔ
Remedy ●Replenish the refrigerant
●Replace the receive dryer
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