R1150 or R23 for cascade?

[Reeferrookie]

Copeland and r1150
Guys I had a question asked that I dont know the answer to and was hoping some of you industry guys can answer for me.

The question is a little vague but Im assuming the company asking reached out to Copeland and Copeland told them not to use r1150. Heres the question:


Why does Copeland consider R1150 to be such a big issue? Would we be better off using R23?

http://www.google.com/url?sa=t&rct=j...55534169,d.aWM (http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&ved=0CEsQFjAD&url=http%3A%2F%2Festore.rrd.com%2FEmerson%2Fdownload.ashx%3Fdid%3D761&ei=OwXTUJ2EO9TiqAGxhYDYDg&usg=AFQjCNGrCZKaem_d8W9ipZ7K8sR5p82Udg&sig2=Ek0n6rCV-QnvaV8edirx8Q&bvm=bv.1355534169,d.aWM)

[Brian_UK]

Copeland are simply protecting themselves from legal attack due to people using a machine, compressor, in an untested environment.

In other words, Copeland have not tested that model of compressor with flammable gases and therefore will not provide safety or warranty for it's use with such gases.

I see nothing wrong with their statement.

[Peter_1]

We have 2 systems running with Copeland compressors on R1150 in 2 stage and R1290 in 1st stage. No problems. We added also some propane to the R1150 stage.