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Hey guys,

I have a question about Superheat. I'm just starting my AC ticket; i already have a Gas ticket. When(and if) a system is low on refrigerant, the suction line will start to freeze up near the compressor(if i remember right), this apparently will be reflected by a high superheat measurement. How can you have high superheat ie: High suction line temp - gauge pressure/temp...and have a line freeze? If the suction line has high line temp, wouldn't it prevent it from icing up?

What am i missing/confusing here?

Thanks,

D.
SuperHEAT is a relative term. It refers to a higher temperature than the saturated (gauge) temp. Still pretty damn cold.

Delta
 
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