Solstice^® ze (R-1234ze) is the best medium pressure, low GWP refrigerant on the market when considering the balance of all properties. It 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 like heat pumps, fridges, vending machines, beverage dispensers, air dryers, CO₂ cascade systems in commercial refrigeration, etc.

Multi-awarded by the industry, Solstice ze meets the criteria that are most important to refrigerants customers: Performance, Cost Effectiveness, Environmental Impact and Safety.

Performance
Field tests of air-cooled chillers in similar systems comparing Solstice ze with propane (R-290) show significantly lower energy consumption. In addition, compared to traditional refrigerants, the properties and operating characteristics of Solstice ze are a very good match, but without the environmental penalty of high GWP HFCs.

After modifications are made to compensate for it lower capacity than HFC-134a the advantage of Solstice ze is comparable on higher energy efficiency or Coefficient of Performance (CoP) than 134a across a range of applications and conditions. According to compressors experts, performance with HFOs can be further improved with optimisation of compressor design. Reciprocating, scroll, screw and centrifugal compressors can be used.

Cost-effectiveness
Fast Implementation
Solstice ze exhibits similar performance to medium-pressure refrigerants like 134a, so only minor changes are required to use Solstice ze.

Longer life of compressors
Solstice ze Refrigerant lower discharge pressure results in less mechanical stress, thus extending the life of the compressor

Energy Efficiency
Solstice ze is more energy efficient in hot regions than competitive LGWP alternatives for this type of equipment.

Global Solution
Solstice ze refrigerant provides efficient cooling in all global climate zones and is commercially available.