R455A refrigerant – an ultra-low GWP of only 146
Refrigerant R455A is a mildly flammable A2L, zeotropic blend. It is an alternative for R22 and R404A for low, medium and high temperature applications in new systems. It can also replace R290.
R455A has an ultra-low GWP of only 146.
R455A refrigerant benefits
- a close capacity match to R404A
- extended operating envelope when compared to propane or air conditioning refrigerants
- high energy efficiency
- high critical temperature
- low critical pressure
- low discharge temperature and 30% lower mass flo compared to R404A/R507A
Applications and use
R455A is a good long-term solution for commercial refrigeration low temperature applications. It can be used across many segments of the HVACR industry. For example – small charge, plugin -type cabinets, condensing units and monoblocks for cold rooms and freezer rooms, waterloops, chillers, heatpumps, low-temperature side of cascade systems and transport refrigeration.
Replacement or alternative refrigerants: R407A, R407F, R442A
R455A refrigerant price
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Want to know more!
Developing low flammability blends with high performance and low GWP, the glide of the refrigerant is a resulting trade-off. That needs to be taken into account when designing refrigeration systems.
Zeotropic blends have been used for many years. Heat exchangers can be designed to take advantage of the glide through an optimized flow configuration. Based on a scientific studies R455A has been detected very stable in a system– even in leaking situations.
Read Cooling Post article: Commercial kitchen uses R1234ze and R455A