R407C is a zeotropic HFC blend used in air conditioning, rooftop units, chillers and some retrofit applications whose suitability has been technically confirmed.
About this refrigerant
R407C is a zeotropic HFC blend of R32, R125 and R134a. It can be used in air-conditioning systems, rooftop units, chiller applications and some R22 conversion projects. Because of its zeotropic nature, temperature glide and composition shift during service must be taken into account.
ASHRAE safety class is A1 and ODP is zero. Charging should follow the manufacturer’s instructions so the blend composition is preserved. In retrofit work, system components, oil compatibility and manufacturer approval must also be checked.
Applications
Rooftop packaged units
Commercial rooftop AC designed or adapted considering R407C temperature glide.
Chillers
Medium-capacity chillers that use R407C in air-conditioning 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 based on IPCC AR4, 100-year time horizon. Use current product documents for project and regulatory assessments.
R407C is a zeotropic blend. Follow the manufacturer’s procedure for charging and service; contact ACC İklimlendirme for project and stock information.
Frequently asked questions
The ACC Refrigerant range includes R134a, R404A, R410A, R32 and R407C. If you are not sure which gas is right for your system, we recommend checking the equipment nameplate or the refrigerant code specified by the manufacturer. Share the information you have with us and we can help you find the right product group.
In general, no. The fact that two gases are used in similar applications does not mean they can be swapped directly. Operating pressure, compressor oil, safety class and system components can differ. Selection must follow the refrigerant code specified by the equipment manufacturer, and different gases must not be mixed in the same circuit. If you are considering a refrigerant change, we recommend obtaining approval from the manufacturer or an authorised technical service first.
In zeotropic blends such as R407C, the saturation temperature does not stay at a single value during phase change; it varies across a range. This behaviour must be taken into account in charging and service practice.
Get a quote for this refrigerant
Write the gas you need and the quantity for current stock, cylinder/packaging options and delivery information.
