My client stumped me today, not that it’s hard to do, since I’m not a wealth of knowledge when it comes to HVAC systems.
He asked the maximum length allowed on the refrigerant line. The one today went from basement, across house, then outside, probably a good 75 feet total. I told him I honestly don’t know, but have inspected 3 story 5000 sq ft homes with lines longer than this one.
Is there a maximum length? Would it need to be increased in diameter for a very long line?