Table des Matières
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1. Evacuation of Air Conditioning system
Open Low pressure Valve
and Start vacuum
Check if both Low and High
pressure drop
OK
Open High pressure valve.
Stop evacuation and close
Low and High pressure valve.
Leave system for > 5 minutes
Check for leakage
OK
2. Charging refrigerant HFC-134a
Open High pressure valve
and start charging
Stop charging and close High
pressure valve
Check system for leakage
using a leak detector
OK
Open High pressure valve
and charge remaining
amount.
Close High pressure valve
and check system for leakage
using a leak detector
OK
NG
High pressure
.
does not drop
Evacuation time : > 15 minutes
Vacuum pressure : 270pa or less
NG
Pressure on both Low
and High are increasing
Charge gaseous refrigerant at the LOW
pressure side until the LOW pressure gauge
indicates 0.098Mpa (1kgf/cm2)
NG
Charge a LIQUID refrigerant on the
HIGH pressure side
NG
Check system operation and system pressure
- 37 -
Check system
for blockage
Check all
connections and
Repair
Return to
EVACUATION
Check all
connections and
Repair
AIM 001 170-0
Publicité
Table des Matières
