Is AC discharge line high or low pressure?
The high side, or discharge line, will be the line connected to the compressor from the bottom or lower position. It will not be wrapped in insulation and will be warm to the touch. This is where freon exits the compressor as a liquid.
What PSI should AC be at?
Most technicians in the HVAC field know the normal range of operation for the low-pressure side of an air conditioning system. This tends to be around 60 PSI to 85 PSI for R-22 and 105 PSI to 143 PSI for R-410A and is dependent upon operating conditions.
Which AC line is the liquid line?
The larger line typically carries a cool gas and is insulated. This is commonly referred to as the suction line, but it is also called the return line or vapor line. The smaller uninsulated line typically carries a warm liquid. It is most often called the liquid line.
Where is the AC low pressure port located?
The low pressure ac port is in the engine compartment, facing the car from the front, to the back in the center, under the windshield. The low pressure ac port and the high pressure ac port both have black dust caps.
Where is the AC low pressure valve?
You find the AC low pressure at the top of the compressor, orientated toward you , facing the front of the vehicle. You can also follow the compressor line to reach the port. The valve is covered a plastic cap covering it. Near the compressor you find two ports, the high port and low port.
Why is my car AC pressure too high?
Blockages around the parts and airflow pipes might be the chief reason behind high car AC pressure. The pipes get clogged with debris and increase the car AC pressure. One must clean the pipes and dirty parts to make things accurate over again.
What is normal AC pressure?
Normal static pressure on the low and high side with the air conditioning controls off, ranges between 36.3 and 47.6 Kilogram per square inch. Gauge readings more than 25 to 35 PSI on the low side gauge with the air conditioning controls set at maximum, and the engine running between 800 and 1,000 RPMs,…