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How do I add freon

Can I add Freon to this unit without adding valves, or are the valves already there?

Posted by Anonymous on


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  • 28 Answers

SOURCE: adding freon to my central air

Well duprees, first you got to have the right instrumentation for charge freon to a a/c system, now, the charge line is the thick line, wich it means the suction line, the colder line, or the most robust line on the compressor.
Then, the system uses freon 22, the right charge, with the system on and the compressor running is 68.5 to 70 psi.
This should give to you about 40 degrees(farenheit) at the evaporator, the panel that gets cold in the system.
This pressure should be at the low side, meaning thicker line in the compressor unit.
Hope this help you......

Good luck.......

Posted on Aug 15, 2008



  • 540 Answers

SOURCE: freon

Go to the supply house and ask for an in-line tap! SSSSSSSSSShhhhhhhhhh(the mechanic might had connected the wrong end of the hose,(one end has a hole and the other end has a valve stem depresser to depress the valve stem to let in-out freon.. Or the older type, you have a king valve and has to be turned to open or close the ports!) ssssshhhhhhhhh!!

Posted on Sep 01, 2008



  • 10515 Answers

SOURCE: how do I add freon to my window air conditioning


My advise call a tech.

EPA performs random inspections in response to citizen tips pursuing potential cases against violators. The EPA is authorized to assess fines of up to $32,500 per day for any violation of the Clean Act regulations.

Always take a wise decision.


Posted on Jun 25, 2009


  • 614 Answers

SOURCE: What are the settings for R22 on an older 2 ton

Sustion or low pressure depending on indoor temp about 70-75 head pressure will vary with a,bient temp. But no moe than 260 to 275. Rus

Posted on Jul 15, 2009


Robert Moller

  • 1524 Answers

SOURCE: who to added R22 freon to my a/c condenser unit

why would you need to add refrigerant ?
If you need to ask which hose goes where,you are not qualified.

Posted on Apr 06, 2010

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