Under the same ambient temperature, the same compressor displacement, and the same heat exchange area, R290 has a higher heating capacity per unit mass. R290 relies on the efficient circulation of the refrigerant itself to achieve high energy efficiency at a fundamental level, without relying on electric auxiliary heating, thereby reducing ineffective energy waste at the source.
Mild operating conditions
R290 has the notable characteristics of low exhaust temperature, low compression ratio, and gentle temperature rise. Because of its mild operating conditions, stable load, and controllable temperature increase, R290 heat pumps can extend the lifespan of the entire unit to 12–15 years, which means 3–5 more years of use without replacing the main unit for the same initial investment.
Low failure rate
R290 has stable chemical properties, does not acidify, hydrolyze, or corrode copper pipes and heat exchangers. Unlike some refrigerants, it does not produce acidic substances upon contact with water that can corrode system pipelines, nor does it have issues with refrigerant stratification or performance degradation. The entire unit operates stably, with an annual failure rate far lower than that of traditional refrigerant heat pumps.
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