User guide

Application Guide | Gas detection in refrigeration systems
© Danfoss | DCS (MWA) | 2018.05 DKRCI.PA.S00.A1.02 | 520H12772 21
Annex III
ASHRAE 15-2016
Refrigerant
type
Refrigerant Name Safety
group
RCL RCL RCL OEL/TWA
(40 hours work week
without effect)
[g/m3] [lb/Mcf] [ppm] [ppm]
- R717 Ammonia B2L 0.22 0.014 320 25
- R744 Carbon Dioxide A1 54 3.4 30000 5000
HCFC R22 Chlorodifluoromethane A1 210 13 59000 1000
HFC R134a 1,1,1,2-tetraflouroroethane A1 210 13 50000 1000
HFC R404A R125/143a/134a (44/52/4) A1 500 31 130000 1000
HFC R407C R32/125/134a (23/25/52) A1 290 19 81000 1000
HFC R410A R32/125 (50/50) A1 420 26 140000 1000
HFC R507 R125/143a (50/50) A1 520 32 130000 1000
HC R290 Propane A3 9.5 0.56 5300 1000
HC R600 Butane A3 2.4 0.15 1000 1000
HC R600a Iso-butane A3 9.6 0.59 4000 1000
HC R1270 Propylene A3 1.7 0.11 1000 500
HFC R32 Difluoromethane A2L 77 4.8 36000 1000
HFO/HFC R1234ze(E) Trans-1,3,3,3-tetrafluoro-1-propene A2L 75 4.7 16000 800