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Jim Knudsen: U.S. HVAC&R users must think long term

In his guest column for the July-August edition of Accelerate America, experienced refrigeration executive Jim Knudsen laments users of HVAC&R equipment continuing to use chemical refrigerants with known environmental hazards, urging them to instead make the investment in a long-term natural refrigerant solutions that are known, viable and safe.

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German automotive body VDA adopts new DIN MAC standards for CO2

For the first time the German Institute for Standardisation (DIN) has released standards relating to R744 components and MAC systems. Four of the 20 standards are yet to be completed, while 16 have now been published, prompting the German Association of the Automotive Industry (VDA) to strongly supported the move.

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Transcritical CO2 systems handling the heat in Georgia

In a Sprouts store in Georgia, an all-CO2 system is performing more efficiently than baseline HFC technology. As Accelerate America Editor Michael Garry found out in the July-August edition, the U.S.’s increasingly positive stance on natural refrigerants – and CO2 in particular – is, for the first time in the U.S., taking effect in warm ambient temperatures.

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