Refrigerants

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The “HARDI Unitary HVAC Market Share Report” provides market share data and analysis detailing unitary sales based on product efficiency for both ducted and ductless cooling equipment, as well as furnaces and boilers. 

The thermostatic expansion valve (TXV or TEV) is a metering device located between the liquid line and the evaporator. 

Danfoss’ periodic EnVisioneering symposia look at a wide range of HVACR issues and topics. For its most recent event this past fall in Baltimore, the focus was on refrigeration, both in terms of regulations and the latest in technology. 

DuPont Refrigerants completed an enforcement action involving counterfeit refrigerants, resulting in the seizure of cylinders and packing in Hangzhou, China.

John Tomczyk, Professor of HVACR at Ferris State University and co-author of Refrigeration and Air Conditioning Technology, discusses refrigerant undercharge.

With all the talk in recent years, and even more so in recent months, regarding refrigerants like CO₂ and hydrocarbons (HCs) making inroads in refrigeration equipment, the trends in the ‘R’ of HVACR are even more widespread. 

The settlement resolves allegations that Safeway violated the federal Clean Air Act (CAA) by failing to promptly repair leaks of HCFC-22, a hydrochlorofluorocarbon used as a coolant in refrigerators, and failed to keep adequate records of the servicing of its refrigeration equipment.