"What i understood that it is possible once the gas in released in the heat exhanger. That i can suck the refrigerant back in the outside unit if I want to change some thing on the heat exchanger."
Yes you can. But every time you open the refrigerant loop, you run the risk of letting moisture and atmosphere into the system. And you always lose a little refrigerant.
Last edited by jeff5may; 06-29-14 at 09:23 AM..
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