R407CrefrigerantR407C Refrigerant
Zeotropic HFC blend for air conditioning, rooftop units, chillers and selected retrofit projects.
About this refrigerant
R407C is a zeotropic HFC blend of R32 / R125 / R134a (23 / 25 / 52 wt%). It has been used in air-conditioning, rooftop packaged units, chillers and some R22 retrofit work where system design accounts for temperature glide and composition shift on leak.
ASHRAE A1, ODP 0, GWP 1774 (IPCC AR4). Charge as liquid; do not top up vapour-only after a leak without following OEM guidance. POE lubricants are typical.
Applications
Rooftop packaged units
Commercial rooftop AC designed or retrofitted for R407C glide behaviour.
Chillers
Medium-capacity chillers specified with R407C in AC and process cooling.
Selected retrofit projects
R22 replacement work where components and oil are compatible with R407C.
Technical properties
- Chemical name
- HFC blend (R32 / R125 / R134a)
- Formula
- —
- CAS / ID
- Blend
- Type
- Zeotropic HFC blend
- Composition
- R32 / R125 / R134a — 23 / 25 / 52 wt%
- Molecular weight
- 86.2 g/mol
- Boiling point (1 atm)
- −43.8 °C (bubble)
- Critical temperature
- 86.1 °C
- ASHRAE safety class
- A1
- ODP
- 0
- GWP (AR4, 100 yr)
- 1774
- Typical lubricant
- POE (polyolester)
GWP values are IPCC AR4, 100-year. Typical published figures; confirm with product documentation for critical designs.
Zeotropic blend — liquid charge only. Confirm ACC cylinder sizes for your project.
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