R454C Leak Detectors
R-32/R-1234yfR-454C is a low-GWP blended HFO/HFC refrigerant engineered for medium-temperature commercial refrigeration applications. It is classified as an A2L refrigerant (lower toxicity, mildly flammable) and offers a significantly lower global warming potential than many traditional HFC refrigerants, making it suitable for regulatory compliance and next-generation refrigeration system designs.
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Key Information
Essential safety and exposure information for R454C
Health Effects
- Although R-454C has low acute toxicity, inhalations of high concentrations can cause headache, dizziness, shortness of breath, asphyxiation due to oxygen displacement
- Contact with rapidly evaporating liquid R-454B can cause frostbite like injuries to skin or eyes.
- As an A2L refrigerant, R-454C is mildly flammable and can ignite under the right conditions, especially near open flames, sparks, or hot surfaces.
Common Sources
- Commercial refrigeration systems
- Display cases
- Walk-in coolers
- Cold storage facilities
- Food retail refrigeration equipment
- Commercial refrigeration condensing unit
Exposure Limits
- WEEL
- 1,000 ppm (8-hr TWA)
- A2L
- Mildly flammable
- OSHA/NIOSH/ACGIH
- None
Regulatory Status
- R-454C is classified by ASHRAE Standard 34 as an A2L refrigerant (lower toxicity, mildly flammable). Its use is governed by ASHRAE Standard 15, which establishes refrigerant concentration limits, ventilation requirements, and leak detection requirements for occupied spaces. The refrigerant is recognized as a low-GWP alternative refrigerant and supports industry transition away from higher-GWP HFCs.
Detection Requirements
- Sensor Technology
- Infrared (NDIR)
- Sensor Detection Range
- 0-2,000 ppm (OEL monitoring)
- Alarm Setpoints
- Low 250 ppm, Mid 500 ppm, 1,000 ppm
- Mounting
- Near floor level (heavier than air)
Related Applications
Industries and environments where R454C detection is critical
Detection Solutions
Sensors and detectors for R454C monitoring
cGas Detector VRF IR Refrigerant Transmitter
An aesthetic, non-dispersive infrared refrigerant gas detector for acute leak detection in modern energy-efficient buildings utilizing Variable Refrigerant Flow (VRF) HVAC systems.
cGas-SC Self-Contained Controller
A self contained controller with up to 3 gas channels, Plug & Play Smart Sensor Technology and configurable logic control and priority settings. Offers superior user customization and reliable gas detection performance for monitoring many gases.
cGas Detector IR Refrigerant Transmitter
Non-dispersive infrared refrigerant gas detector with accurate, low level leak detection, available with analog output or BACnet® or Modbus® output and Plug & Play Smart Sensor Technology.
FCS Multi Channel System Controllers
High performance controller with logic and priority settings for monitoring toxic, combustible and refrigerant gases with versatile control functionality. Available with Modbus® or BACnet® communication with BAS, supports 4-20 mA and Modbus® driven VFDs.
Related Gases
Other A2L Refrigerants we detect