Several refrigerant motor-compressor manufacturers such as Dorin, Bitzer and Emerson have already received UL Certification for their CO2 compressors for American and Canadian markets, and others such as EcoThermics expect approval later this year. The internationally recognised safety certification reinforces product credibility to end-users considering all-natural refrigeration solutions, an increasingly popular choice in North America for commercial and industrial applications.
For those customers who want compressors that use a natural refrigerant, Emerson’s new line of transcritical compressors have received UL recognition,” said Mitch Knapke, market manager, food retail, Emerson Climate Technologies.
With an increased global interest in the environmental impact of refrigeration systems, Emerson Climate Technologies expects increased usage of alternatives to hydrofluorocarbon (HFC) refrigerants that have lower global warming potential (GWP), including HFO blends and natural refrigerants such as CO2. Emerson believes subcritical CO2 cascade systems will gain more traction in the warmer climates and transcritical CO2 systems are particularly well-suited for colder climates. In addition to CO2 compressors, Emerson offers a comprehensive portfolio of CO2 controls and flow components.UL recognition is a critical step to increasing CO2 adoption as it ensures retailers the compressors have met stringent safety tests,” he continues.
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