Traditional Refrigerants
Traditional refrigerants including HFCs and legacy HCFCs remain in widespread use across commercial and industrial refrigeration systems. While generally non-toxic at low concentrations, these refrigerants can displace oxygen and cause cardiac sensitization at higher levels. EPA regulations require leak detection and refrigerant management. CET provides semiconductor and infrared sensors for refrigerant leak detection in machine rooms and occupied spaces.
Why Detection Matters
Large refrigerant releases can displace oxygen to immediately dangerous levels. Refrigerants are heavier than air and accumulate in low-lying areas and mechanical rooms. High concentrations can cause cardiac arrhythmias (cardiac sensitization). EPA Section 608 requires leak detection and repair. ASHRAE 15 mandates refrigerant monitors in machinery rooms. Early detection prevents both safety incidents and costly refrigerant loss.
Common Hazards:
Gases
Explore traditional refrigerants
R-22 (CHClF₂)
HCFC refrigerant being phased out under Montreal Protocol
R-143a (C₂H₃F₃)
HFC blend component refrigerant
R-514A (HFO-1336mzz and t-DCE)
B2L low-pressure chiller refrigerant
R-227ea (C₃HF₇)
HFC used in fire suppression and chillers
R-404A (R125/R143a/R134a)
Commercial refrigeration HFC blend
R-407A (R32/R125/R134a)
R-22 replacement for AC systems
R-407C (R32/R125/R134a)
Common R-22 retrofit refrigerant
R-407F (R32/R125/R134a)
Low/medium temperature refrigerant
R-417A (R125/R134a/Butane)
Drop-in R-22 replacement blend
R-422D (R125/R134a/Isobutane)
R-22 retrofit refrigerant blend
R-438A (R32/R125/R134a/R600/R601a)
ISCEON MO99 R-22 replacement
R-448A (R32/R125/R134a/R1234yf/R1234ze)
Solstice N40 supermarket refrigerant
R-449A (R32/R125/R134a/R1234yf)
Opteon XP40 commercial refrigerant
R-450A (R134a/R1234ze)
Low-GWP chiller refrigerant blend
R-452A (R32/R125/R1234yf)
Transport refrigeration blend
R-507 (R125/R143a)
Industrial refrigeration HFC blend
R-513A (R134a/R1234yf)
Opteon XP10 chiller refrigerant
HFO-1233zd (CF₃CH=CHCl)
Low-pressure HFO chiller refrigerant
R-744 (CO₂)
Natural transcritical refrigerant (CO2)
R-134a (C₂H₂F₄)
Common hydrofluorocarbon refrigerant
R-410A (CH₂F₂/CHF₂CF₃)
Hydrofluorocarbon refrigerant blend for HVAC
Related Applications
Applications that monitor traditional refrigerants