The coupling system seems pretty robust compared to the run of the mill flare fitting that you’d find on a normal install. Also, they are not just quick couplers, they’re inside a JIC so there’s a backup seal there. Maybe not as good as brazed, but flare fittings work well enough on equipment. It does have ports for charging so I could always refit with brazed lineset some day and recharge.

We’ll see. Typical charge for installing one of these things around here is upwards of $4000, on top of the $4000 they charge for a $1500 unit. I’ll take my chances since I’m all of $1800 into it. And compared to my old 4t AC PAM unit, I’m pretty sure I’ll save that in a year.