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NiHaoMike · 05-02-14, 08:27 AM

The condensing temperature limit would to low enough to make it useless as a water heater. Start with a R410a compressor or use R152a (commonly found in duster cans) or R600a.

I have run R410a in a R134a compressor that was being used as the second stage of a cascade. (First stage ran on R152a.) It would pull down to -50C, then the oil starts freezing. I'll have to change the oil to a low temp type for it to work as intended.

05-02-14, 08:27 AM	#2
NiHaoMike Supreme EcoRenovator Join Date: Oct 2008 Location: Austin, TX Posts: 1,154 Thanks: 14 Thanked 257 Times in 241 Posts	The condensing temperature limit would to low enough to make it useless as a water heater. Start with a R410a compressor or use R152a (commonly found in duster cans) or R600a. I have run R410a in a R134a compressor that was being used as the second stage of a cascade. (First stage ran on R152a.) It would pull down to -50C, then the oil starts freezing. I'll have to change the oil to a low temp type for it to work as intended. __________________ To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...