EcoRenovator - View Single Post - Ductless Failure (Mitsubishi mini-split)

bmxeroh · 12-30-16, 03:34 PM

I wouldn't be surprised if it was just simply bad luck either. I remember reading somewhere about r410a systems having issues with popping holes in the coils due to a combination of the increased pressure and the tubing being rifled causing weak spots. Anecdotally, I know my dads split system sprung a leak within a couple of years of moving into his house (r410a). In the meantime, my R22 system is going on 20 years old now with no issues other than a start capacitor two summers ago. No clue if MS coils are the same, but I'd assume so as rifling the tubing increases the internal surface area of the tubing, allowing them to squeeze a little more out of a unit at any given size.

12-30-16, 03:34 PM	#3
bmxeroh Helper EcoRenovator Join Date: Sep 2014 Location: Columbus, OH Posts: 34 Thanks: 1 Thanked 5 Times in 5 Posts	I wouldn't be surprised if it was just simply bad luck either. I remember reading somewhere about r410a systems having issues with popping holes in the coils due to a combination of the increased pressure and the tubing being rifled causing weak spots. Anecdotally, I know my dads split system sprung a leak within a couple of years of moving into his house (r410a). In the meantime, my R22 system is going on 20 years old now with no issues other than a start capacitor two summers ago. No clue if MS coils are the same, but I'd assume so as rifling the tubing increases the internal surface area of the tubing, allowing them to squeeze a little more out of a unit at any given size.