R-32
R-32 is a low-GWP refrigerant that enhances energy efficiency and cooling performance in residential and commercial AC systems.
What is R-32?
R-32 is a hydrofluorocarbon (HFC) refrigerant and one of the main components of R-410A and several newer hydrofluoroolefin (HFO) blends. Known for its low global warming potential (GWP) and high energy efficiency, it is widely used in residential and commercial air conditioning systems due to its superior heat transfer properties and reduced refrigerant charge requirements compared to older alternatives.
R-32 is compatible with polyolester (POE) lubricants and operates at higher pressures, making it essential for modern, environmentally conscious cooling solutions. While it has a mild flammability rating (A2L classification), R-32 remains a preferred choice for manufacturers looking to reduce emissions and enhance system performance.
Important Note
Key Properties of R-507
Low Boiling Point
Boils at (1 atm, °F): -61.0, making it efficient for residential and commercial air conditioning applications.
Similar Pressure Operation
Operates at slightly higher pressures than R-410, but can only operate in R-32 designed systems.
Improved Energy Efficiency
Offers better energy efficiency compared to older refrigerants like R-410A, but it is slightly flammable.
Zero Ozone Depletion
Has an Ozone Depletion Potential (ODP) of 0, making it safer for the environment.
Global Warming Potential
Has a GWP of 677, which is significant but much lower than most alternatives.
Mildly Flammable
Classified as A2L (low toxicity, mildly flammable) by ASHRAE.
Technical Specifications
Applications and Usage
Residential Systems
- Primary refrigerant in modern residential air conditioning and heat pump systems
- Used in high-efficiency split and ductless mini-split AC units
- Replacement for R-410A in next-generation home cooling systems
Commercial Applications
- Applied in light commercial air conditioning and heat pumps
- Utilized in VRF (Variable Refrigerant Flow) systems for energy-efficient climate control
- Increasingly adopted in packaged rooftop HVAC units for lower-GWP compliance
Industrial Applications
- Used in industrial heat pump systems for sustainable heating and cooling
- Applied in data center cooling solutions for enhanced energy efficiency
- Supports commercial refrigeration systems designed for A2L-class refrigerants
Specialized Uses
- Integrated into some next-generation HFO blends for lower environmental impact
- Used in air conditioning systems of electric and hybrid vehicles
- Found in some portable and spot cooling systems for targeted temperature control
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