I was tired of listening to the refrigerant gurgle through the bedroom walls. I also couuld not keep the superheat where I wanted it due to the wifes need to have the inside temperature at 70F and GA's widely varying climate.

A friend gave me a scratch and dent 42,000 BTU 10 SEER condensor which was too big for my needs so I swapped the compressor out of my old 2T Trane and used the new larger copper coil.

Since I wanted superheat stability, I added an externally equalized TXV to the existing evaporator. I also added start components. Getting rid of the metering piston helped the overall operation a bunch. Now the pressures are stable, the system is quiet and I'm sure that I picked up a couple of SEER even though I don't have a metric to prove it..

The only regret is that I had to use Burnz-o-matic style air-Mapp gas torches. It took two at the same time for the larger tubing. I wish I still had my small oxy rig or better yet, a portable induction heater.

Maybe I'll build one...NEXT weekend.