I just came back from the cmx trade show in Toronto and i was talking to one of the salesman at a booth about refrigerants and how its all going to change in the next 5-10 years.
He was mentioning about how in europe. they all have commercial units working off this new refrigerant believe it or not its CO2 and he was saying the pressures that are expected are 2000psig high side and 500 psig on the low side. and they have been using it for years and its a good alternative to our current refrigerants! how does everyone feel about handling pressures as high as 2000psig as a normal commerical unit? it personally kinda scares me but he says it is the new world of refrigeration and we all have to accept it.
heres a link to one of the units kinda cool