AIR CONDITIONING
04 - Refrigerant Charging
SG04-2
TC070-15-01H
4. Place the refrigerant tank on the scale.
Regular amount of refrigerant (approx. quantity)
500 g {17.65 oz}
Evacuation
1. Open all the valves of the pressure gauge.
NOTE
Close the SST (49 C061 001A) valve immediately after stopping the vacuum pump.
If the valve is left open, the vacuum pump oil will flow back into the refrigeration
cycle and cause a decrease in the efficiency of the air conditioner.
2. Start the vacuum pump and let it operate for
15 min
.
3. Verify that high- and low-pressure side readings are at
-101 kPa {-760 mmHg, -
29.9 inHg}
. Close each valve.
Air-tightness Check
1. Stop the vacuum pump and wait for
5 min
.
2. Check the high- and low-pressure side readings of the gauge.
(If the reading has changed, inspect for leakage and go to Evacuation.)
Charging New R-134a Refrigerant
1. Open the valve of the refrigerant tank.
2. Weigh the refrigerant tank and record it.
Weight g (oz)
NOTE
If the refrigerant system is charged with a large amount of refrigerant when
inspecting for gas leakage, and if any leakage should occur, the refrigerant will be
released into the atmosphere. In order to prevent the accidental release of
refrigerant that can destroy the ozone layer in the stratosphere, follow the proper
procedures and charge with only a small amount of refrigerant when inspecting for
gas leakage.
Summary of Contents for TC070-15-01H
Page 12: ...AIR CONDITIONING SG01 Basic System SG01 2 TC070 15 01H A C Components Name the components...
Page 23: ...AIR CONDITIONING SG01 Basic System SG01 13 TC070 15 01H Review Exercise 1 Name the components...
Page 55: ...AIR CONDITIONING SG02 Control System Manual Air Conditioning SG02 17 TC070 15 01H Cont d...
