Armstrong’s focus is on low GWP solutions.
Built to accommodate future standards, our systems are based on low Global Warming Potential (GWP) solutions, including hydrofluorocarbons (HFCs), hydrofluoro-olefins (HFOs), hydrochlorofluoro-olefins (HCFO) and natural refrigerants. The integration of new refrigerants, such as HFOs and HCFO, into our product portfolio is a priority at Armstrong. The extensive temperature range that results allows us to meet the most challenging requirements in the field of heating technology.
A Comprehensive Range of Refrigerants, Temperatures and Applications
Armstrong’s proven R513A / R1234yf / R450A/R134a heat pumps can be employed for a temperature range of up to 82°C (180°F), and we offer a variety of compressors and heat exchanger types that can be adapted to your respective need.
In addition, our R1234ze / R515B heat pumps can be employed for a hot water temperature range up to 92°C (198°F). For highest demand up to 120°C (248°F), the refrigerants R245fa or R1233zd(E) are suitable solutions which combine low-pressure characteristic, environmentally friendly properties, and valuable thermodynamic capability.
R1233zd(E) is the refrigerant of choice for Armstrong industrial high-temperature heat pumps.
Selecting the right refrigerant is a critical decision when designing a heat pump. In addition to being harmless to the environment and people, it should have the thermodynamic characteristics required to produce heat above 80°C (176°F) reliably and economically by running the refrigeration loop at relatively low pressure.
Armstrong and Combitherm have conducted comprehensive technical and economical reviews of refrigerants available for industrial high-temperature heat pump applications. Our conclusion is that only 1233zd(E) delivers the level of safety, reliability and cost necessary for high-temperature heat pumps to be scaled-up sufficiently to have a significant impact on decarbonization of light industries.
Harmless to the environment and people.
The characteristics of R1233zd(E)—which belongs to the HCFO category—make it the refrigerant of choice for industrial high-temperature heat pumps. It has an Ozone Depletion Potential (ODP) of 0, and a Global Warming Potential (GWP) below 5—substantially lower than the GWP > 1000 of most previously used HFC refrigerants.
As a member of the safest A1 Class, R1233zd(E) is nonflammable and nontoxic. It has a very short atmospheric lifetime of 36 days (global average, local values depending on climate conditions) and 0% experimental probability to yield TFA (< 2% theoretical probability). These characteristics explain why R1233zd(E) is increasingly used as a replacement for HFCs in other applications, such as insulation foam sprayed at construction sites, and car air conditioning systems.