stillusingbtu's
11-02-2015, 07:50 PM
Hello all,
New to the site.
I have a couple of separate systems running on R404a on a spiral freezer. Both systems are LPR type ( Star Refrig design). With the new regulations coming in to force I'm looking for a suitable refrigerant to replace the R404a without having to make any major mods to the systems. Unfortunately the new 407's will fractionate in the LPR vessel and at the moment the new hfo's I've read about seem to be more for the a/c and chiller market. I've also tried to look into the possibility of R410a but there's not much info about this gas on low temperature operation. The compressors are grasso and sabroe screws with economisers, evap temp -43 deg. Anyone got any suggestions?
New to the site.
I have a couple of separate systems running on R404a on a spiral freezer. Both systems are LPR type ( Star Refrig design). With the new regulations coming in to force I'm looking for a suitable refrigerant to replace the R404a without having to make any major mods to the systems. Unfortunately the new 407's will fractionate in the LPR vessel and at the moment the new hfo's I've read about seem to be more for the a/c and chiller market. I've also tried to look into the possibility of R410a but there's not much info about this gas on low temperature operation. The compressors are grasso and sabroe screws with economisers, evap temp -43 deg. Anyone got any suggestions?