R-407F Leak Detectors
R32/R125/R134aR-407F is a zeotropic HFC refrigerant blend (R-32/R-125/R-134a at 30/30/40%) optimized for commercial refrigeration as a lower-GWP alternative to R-404A. With a GWP of 1,825—less than half of R-404A—R-407F offers meaningful environmental improvement while maintaining good performance across medium and low-temperature applications. The higher R-32 content compared to R-407A provides improved energy efficiency and capacity. Temperature glide of approximately 6°C is similar to other R-407 variants. R-407F is commonly used in supermarket refrigeration, cold storage, and food service equipment where R-404A replacement is needed but ultra-low-GWP solutions are not yet practical.
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Key Information
Essential safety and exposure information for R-407F
Health Effects
Low acute toxicity. May cause cardiac sensitization. Use adequate ventilation in enclosed spaces.
Common Sources
- Supermarket refrigeration
- cold storage
- commercial freezers
Exposure Limits
- WEEL
- 1,000 ppm (8-hr TWA)
- No OSHA/NIOSH limit
- No OSHA/NIOSH limit
- Blend of R32/R125/R134a
- Blend of R32/R125/R134a
Regulatory Status
- EPA Classification
- HFC blend (non-ODS)
- ASHRAE Safety Group
- A1 (low toxicity, non-flammable)
- GWP (AR5)
- 1,825
- ODP
- 0
- Temperature Glide
- Approximately 6°C
- AIM Act
- Subject to phase-down but lower priority than high-GWP blends
Detection Requirements
- Mounting Height
- Near floor level, near potential leak points, 6–8 inches off floor
- Sensor Technology
- Infrared (NDIR)
- Detection Range
- 0-1,000 ppm typical
- Response Time
- <30 seconds (T90)
- Calibration Frequency
- Annual recommended
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Detection Solutions
Sensors and detectors for R-407F monitoring
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.
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 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 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.