R-514A
HFO-1336mzz …R-514A (Opteon XP30) is a low-pressure refrigerant for centrifugal chillers. It has B1 classification (higher toxicity, mildly flammable) but ultra-low GWP.
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Key Information
Essential safety and exposure information for R-514A
Health Effects
B1 classification indicates higher toxicity than A-class refrigerants. Requires enhanced ventilation and safety measures. Mildly flammable.
Common Sources
- Large centrifugal chillers
- Industrial cooling systems
- Used as a low-pressure replacement for R-123
Exposure Limits
- ACGIH TWA 8hr
- 200 ppm
- Occupational Exposure Limit (OEL)
- 323 ppm (as a total blend)
Regulatory Status
- EPA SNAP
- Under review
- ASHRAE 34
- B1 Safety Classification
- GWP
- 2 (Ultra-low GWP)
- ODP
- 0
- DOT
- Class 2.2 Non-flammable
- Application
- Low-pressure chillers
Detection Requirements
- R-514A is detected using non-dispersive infrared (NDIR) sensors calibrated to the absorption spectrum of its HFO-1336mzz(Z) component. NDIR technology provides reliable, low-maintenance monitoring with long sensor life and immunity to sensor poisoning. Detector mounting should follow ASHRAE 15 guidelines for low-pressure refrigerants, typically at breathing zone height in mechanical rooms housing centrifugal chillers. CET's cGas IR Refrigerant Transmitter provides accurate, parts-per-million level detection with both analog and digital output options for BAS integration.
Detection Solutions
Sensors and detectors for R-514A 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.