Honda Accord: System Evacuation
вЂў Air conditioning refrigerant or lubricant v a p o r c an irritate your eyes, nose, or throat.
вЂўBe careful when connecting service equipment.
вЂў Do not breathe refrigerant or vapor.
NOTE; вЂў If accidental system discharge occurs, ventilate the work area before resuming service.
вЂў Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.
вЂў Do not allow moisture to contaminate the A/C system oil. Moisture in the oil is difficult to remove, and it can damage the A/C compressor.
1.When an A/G system has been opened to the atmosphere, such as during installation or repair, it must be evacuated using an R-134a refrigerant recovery/recycling/charging station. If the system has been open for several days, the receiver/dryer should be replaced, refrigerant oil should be drained and replaced with new oil, and the system should be evacuated for several hours.
2. Connect a n R-134a refrigerant recovery/recycling/charging station (A) to the high-pressure service port (B) and the low-pressure service port (C), as shown, following the equipment manufacturer's instructions. Recover the refrigerant, if any, from the A/C system (see page 21-80).
3. Evacuate the system. The vacuum pump should run for a minimum of 45 minutes to eliminate all moisture from the system. When the suction gauge reads -93.3 kPa (-700 mmHg, -27.6 inHg) for at least 45 minutes, close all valves, and turn off the vacuum pump.
4. If the suction gauge does not reach approximately - 9 3 . 3 kPa (-700 mmHg, -27.6 inHg) in 15 minutes, there is probably a leak in the system. Partially charge the system, and check for leaks (see page 21-82).
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