How to Read Freon Gauges?

Answer

To read freon gauges you need to be familiar with a gauge manifold. The two gauges contained on the manifold are for high pressure and low pressure which tell you about the system's condition. The low pressure gauge indicates how well the evaporator portion is picking up heat and how well the compressor is eliminating it. The high pressure gauge indicates how well the condensing coil is getting rid of heat and the amount of load the system is exerting on it. Typically, the low pressure gauge should be as high as possible and the high pressure gauge low.
Q&A Related to "How to Read Freon Gauges?"
1. Refer to your owner's manual for the location of the high and low side fittings on your AC lines. Typically R134a refrigerant has replaced the outdated R22 refrigerant, so the
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The automotive air conditioning manifold gauges are essential for diagnosing problems with the system. The gauges show the state of charge and the pressures existing within the system
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60 to 80 pounds.
http://wiki.answers.com/Q/What_should_the_low_side...
it should be in the green, or, put a thermometer in a vent, run the ac, add freon a little at a time, the temp goes down, when it starts going up, its over charged, let a little out
http://answers.yahoo.com/question/index?qid=200907...
1 Additional Answer
To read Freon gauges you should have an idea about the gauge manifold. The two manifold gauges are for low and high pressure. The low pressure, gauge lets you know how well the evaporator portion is picking up heat and how well the compressor is evacuating it. The high pressure gauge, or Head gauge tells you the state of the condensing coil which is meant to get rid of heat and the amount of load the system is putting on it.
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