AC Coolant Line Loops

[fenian]

Flange are you serious that you've seen this before?

btw mike those rheems seem small to be 5 tons. what's on the third floor?

[Mike Lamb]

btw mike those rheems seem small to be 5 tons. what's on the third floor?

Both data plates were on the same unit. That's odd, isn't it? 4 ton and 5 ton. The one with the whacked out refrigerant line went to the furnace on the 3rd floor.

[fincomber569]

The far AC unit in the photos (6 ton, I believe) makes 5 coolant line u-turns under this deck before it heads up the wall to the 3rd floor. What's the reason?

Looks like an attempt at sound attenuation. I wonder if it helped any. If these are heat pumps maybe the noise was during the heat mode.

[fenian]

not that it matters, but have the panel covers been switched?
& why do they need 4 or 5 tons of air on the third floor? Throw in a picture of the furnace if you can.

[gonekuku]

These are heat expansion loops so that between winter and summer due to the thermal expansion coefficient of copper the pipe doesn't buckle. I believe these are required by code....in an oil pipeline in Alaska.