Mitsubishi 3000GT Service Manual page 1247

High pressure valve
Low pressure valve
pressure p&sure
service
service
valve
valve
Garage ambient
temperature "C ("F)
Discharge air
temperature "C ("F)
Compressor discharge
pressure kPa (psi)
pressure kPa (psi)
AND MANUAL
HEATERS
CONDITIONING
AIR
<Vehicles using R-134a refrigerant>
(1) The vehicles to be tested should be in a place that is
not in direct sunlight.
(2) Close the high and low pressure valve of the gauge man-
ifold.
(3) Connect the charging hose (blue) to the low pressure
valve and connect the charging hose (red) to the high
pressure valve of the gauge manifold.
(4) Install the quick joint (for low pressure) to the charging
hose (blue), and connect the quick joint (for high pressure)
to the charging hose (red).
(5) Connect the quick joint (for low pressure) to the low-pres-
sure service valve and connect the quick joint (for high
pressure) to the high-pressure service valve.
NOTE
The high-pressure service valve is on high-pressure pipe
Adaptor valve
B, and the low-pressure service valve is on the low-pres-
sure hose.
Caution
To connect the quick joint, press section A firmly
against the service valve until a click is heard. When
connecting, run your hand along the hose while press-
ing to ensure that there are no bends in the hose.
(6) Start the engine.
(7) Set the A/C controls as follows:
Mode selection: Face position
Temperature control: Max. cooling position
Air selection: Recirculation position
Blower switch: HI (Fast) position
(8) Adjust engine speed to 1,000 rpm with A/C clutch en-
gaged.
(9) Engine should be warmed up with doors and windows
closed.
operate the engine for 20 minutes.
(11) Note the discharge air temperature.
NOTE
If the clutch cycles, take the reading before the clutch
disengages.
Performance Temperature Chart
21 (70)
1 .o-4.0
0.0-3.0
(33.8-39.2)
(32.0-37.4)
690-740
780-830
(110.9-118.1) (123.7-130.9) (153.6-160.7) (172.1-179.2)
130-190 130-190
(18.5-27.5) (18.5-27.5)
TSB Revision
32.2 (90) 37.8 (100)
1 .o-4.0 1 .o-4.0
(33.8-39.2)
(33.8-39.2)
870-920
130-190 130-190
(18.5-27.5)
55-27
(110)
43.3
2.0-5.0
1,210-l ,260
130-190