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What does high-side and low-side mean with respect to car AC's?
High side and low side refer to the pressure in the ac system. Ie The high side is the high pressure line and low side is the low pressure line.
1993 Lumina air conditioner has a high low pressure reading at about 120 and a zero high pressure what could be the problem?
I have worked on air conditioners since 1960 and have never heard of a low side reading without a high side reading. Are you sure you are on the low side, the fitting is on the accumulator. If so you need to be sure that the hose is depressing the schrader valve. If you loosen the line at the gauge you should have pressure. If the high side is 120psi and the low side is zero, then you are low on refrigerant or you could have a clogged orfice tube.
What are the symptoms of a bad ac compressor on a 98 Lincoln town car?
The symptoms of a bad ac compressor would be a grinding or rattleing sound or a low pressure reading on the high side with a normal pressure reading on the low side. The low pressure will be about 30 to 40 pounds. The high side should read around 150 to 200.
What does hp mean on the side of the good year tire?
High Pressure
What should pressure reading be for house ac?
The refrigerant pressure for a residential air conditioner is around 75 psi for low side input and 260 psi for high side output. If the unit is turned off the pressure will be about equal to the ambient temperature.
Is the suction line the high side?
No, the liquid (discharge) line is the high pressure side. The suction line is the low pressure side.
What color is the high side on a pressure gauge?
Red is the high side.. The low side is blue..
What part of the refrigeration system changes the high pressure side to the low pressure side?
The compressor changes the low pressure gas into a high pressure gas which then has the heat of compression removed in the condensor to turn it into a high pressure liquid.
Does your AC system need work if a test showed press of 75 low and 103 high side with an outside temp of 64 and inside of 72 and the placard on the unit shows design pressure of 150 low and 300 high?
YES first of all the design pressures are only indicating what the pressure test at the factory was. a normal r22 system when running should have a low side pressure of 50 -60 and the highside will vary aroung 200 - 275. Your low side pressure is too high and your high side pressure is too low for the outside temperature and the low side pressure. Are you sure about these numbers? If your suction(low) pressure is reading 75psi then your high side should be reading well over 200psi. At an outdoor temp of 64 degrees, it seems that your suction pressure is too high. Block the airflow of the condenser fan w/cardboard,etc...if the high side gets a little higher and the low side goes up with it, then the valves in you compressor are shot and you need a new unit. This is caused by too high of head pressures (lack of airflow, dirty outside coils), lack of oil return to the compressor, or constantly running in an undercharged state. Sorry for the bad news.
What side is the ac condenser on a unit?
The high pressure side.
What is high-side gauge definition?
On a manifold gauge set, there are two gauges. The gauge encased in red measures pressure on the high pressure (discharge) side. That's the "high side gauge". The other will be incased in blue, and measures vacuum pressure on the low side.
Why is High side pressure high Low side goes into vacuum?
its can be a restriction in liquide line
