Quote:
Originally Posted by phil1968
As an airconditioning engineer I can tell you that you only need replace the drier when the system is broken into, for instance to replace the compressor. Replacing it & evacuating / re-gassing on such a regular basis is completely unnecessary
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If you ask commercial or industrial AC technicians they usually says that, no you don't have to fill up a ac-system. It's either full or you have a leak. Automotive AC technicians however will explain the difference between a AC system I a car (that's experiencing years of vibrations affecting joints and seals, on and off and rough climate) and a perfectly seald system in a kitchen or an industry. After 20 years the ac system on my 850 had lost 60% refrigerant even though it was considered "gas tight" and ok. My ac was vacuumed and filled four years ago and is still working perfectly.