Genetron® AZ-20 (R-410A) Description
Genetron AZ-20 (an azeotropic blend of HFC-32/HFC-125) has been created to serve as a long-term, non-ozone-depleting substitute for HCFC-22 in a range of modern equipment applications.
It has a low inherent toxicity and much higher pressure and capacity than HCFC-22. It is simple to service in the field because of how it operates like an azeotrope.
Extract from the table of contents: applications; physical characteristics; product specifications; servicing considerations; pressure vs. temperature; material compatibility; lubricants; safety; storage and handling; leak detection; retrofitting existing systems; environmental considerations; recycling and reclamation; packaging; literature available; thermodynamic tables.
It has become commonplace to use this in place of R-22 in air conditioning and refrigeration applications. for brand-new equipment, not for upgrades.
- Typical Lubricant
- POE
- Refrigerant Class
- HFC
- Refrigerant Type
- Azeotropic blend
- Linear Formula
- CH2F2, CF3CHF2
- Chemical Name
- Difluoromethane, Pentafluoroethane
- ASHRAE Number
- R-410A
- Substitutes
- HCFC-22
- Application
- Commercial A/C
- Organic Rankine Cycle
- Residential A/C
- Contains
- HFC-32 (50%), HFC-125 (50%)
- Formula
- CH2F2/CHF2CF3
- Glide
- Near Zero Glide
- Brand
- Genetron®
- Liquid Thermal Conductivity
- 0.0534 (Btu/hr ft°F)
- Vapor Thermal Conductivity
- 0.0091 (Btu/hr ft°F)
- Saturated Liquid Density
- 64.5 lb/ft3 at 86 °F
- Specific Heat of Liquid
- 0.42 Btu/lb at 86 °F
- Specific Heat of Vapor
- 0.17 Btu/lb at 86 °F and 1 Atm, at Cp
- Liquid Heat Capacity
- 0.17 (Btu/lb°F)
- Heat of Vaporization
- 117.43 (Btu/lb) at boiling point @ 1 ATM (101.3 kPa)
- Solubility of Water
- 0.28
- Critical Pressure
- 711.07 psia
- Molecular Weight
- 72.6 lbm/lbmol
- Liquid Viscosity
- 0.2825 (lbm/ft hr)
- Critical Density
- 28.69 (lb/ft3)
- Vapor Viscosity
- 0.0351 (lbm/ft hr)
- Critical Volume
- 0.0349 (ft3lb)
- Vapor Pressure
- 239.59 (Psia) hectopascal
- Liquid Density
- 66.09 (lb/ft3)
- Vapor Density
- 0.26 (lb/ft3) at boiling point
- Purity Number
- 0
- Appearance
- Colorless
- Critical Temperature
- 160.44 °F (ASTM D-1321)
- Boiling Point/Range
- -60.6 °F at 1 Atm (101.3 kPa)
- Freezing Point
- -247 °F at 1 Atm
- Ozone Depletion Potential
- 0
- Flammable Range
- None, %vol. in air (Based on ASHRAE Standard 34 with Match Ignition)
- ASHRAE Safety Classification
- A1
Brand
Honeywell
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