R1234ze (Solstice 1234ze)

Honeywell's new Solstice™ ze refrigerant (HFO 1234ze) is an energy-efficient alternative to traditional refrigerants in air-cooled and water-cooled chillers for supermarkets and commercial buildings, as well as in other medium temperature applications such as heat pumps, refrigerators, vending machines and CO2 cascade systems in commercial refrigeration.

Common Applications:


Commercial Refrigeration


Industrial/Commercial Air Conditioning DX Chillers


Heat Pumps & Heat Transfer


Foam Blowing Agent


Replacement for: R134a
Retrofit gas or design for new equipment? R1234ze is designed for new systems. It is slightly flammable and therefore is not suitable for retrofitting existing systems.
Other alternatives / replacements: R134a, R744, R600a
Compatible lubricants:


Environmental Impact

Ozone Depletion Potential (ODP) 0
Ozone Depletion Potential (Rating)
Global Warming Potential (GWP) 7
Global Warming Potential (Rating)


Safety Information

ASHRAE Safety Group (2013) A2L
ASHRAE Flammability Yes (Low)
ASHRAE Toxicity No


Supply Modes & Package Specifications
We offer this refrigerant gas in a range of package sizes to suit all applications. Typically, this will include both cylinders and drum tanks.


Further Information
The new HFO refrigerant R1234ze is now available from Linde in selected markets.
SOLSTICE™ is a trademark of Honeywell International Inc.