EcoRenovator - View Single Post - The Davuluri Treatment: using a R410a compressor with R290

Thepprof · 04-02-14, 08:46 PM

I really had nothing to lose so took a Klimaire 12K unit that had a compressor that locked up. I took a compressor from a 10k window unit and installed it in the Minisplit. I only found 1 article regarding adding R290 to a R410a R22 unit. In this study the Delta T kept getting better up to a point and then it went flat. I had no idea what to do so just put in about 1/2 of what the original unit needed and after about a hour the unit started kicking out 28 degrees difference inside. the Outside temp was about 65 degrees inside about the same. I switched from cool to heat by accident and within a few minutes hot air was flowing.. so much for the skeptics. Now how long the unit will work who knows. It lost a visible amount of oil and Im sure the window Ac compressor had less that the original. Nothing ventured nothing gained..

04-02-14, 08:46 PM	#5
Thepprof Lurking Renovator Join Date: Jun 2012 Location: Virginia Posts: 28 Thanks: 0 Thanked 4 Times in 3 Posts	I really had nothing to lose so took a Klimaire 12K unit that had a compressor that locked up. I took a compressor from a 10k window unit and installed it in the Minisplit. I only found 1 article regarding adding R290 to a R410a R22 unit. In this study the Delta T kept getting better up to a point and then it went flat. I had no idea what to do so just put in about 1/2 of what the original unit needed and after about a hour the unit started kicking out 28 degrees difference inside. the Outside temp was about 65 degrees inside about the same. I switched from cool to heat by accident and within a few minutes hot air was flowing.. so much for the skeptics. Now how long the unit will work who knows. It lost a visible amount of oil and Im sure the window Ac compressor had less that the original. Nothing ventured nothing gained..