I have seen the 50 lb limit and apparently that does apply - I did find language indicating that less than 50 lb systems are exempt. Residential systems are generally 5 tons or less - perhaps 20 lbs of refrigerant.
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Originally Posted by retiredguy123
It would apply to large residential systems with 50 or more pounds of refrigerant, but I don't think it applies to individual house HVAC systems. This is from the EPA website regarding Section 608 of the EPA Refrigerant Management regulations. Do have another link that would have different requirements?
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