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An HCFC-22 refrigerant leak in its flooded tube-style chiller system threatened the Arcadia Ice Arena with a potential door-closing financial crisis, had it not been for the ingenuity of its maintenance engineer and today's commercial refrigeration leak sealants.

Recovery of refrigerant may be a common practice in HVACR servicing, but it is still a skill that requires care and caution. Awareness of step by step procedures can help all technicians better understand what’s involved in the process.

The Service Applications Manual (SAM) of the RSES has been one of the venerable documents of the HVACR industry. It consisted of two large loose-leaf binders in which were inserted printed training materials prepared by RSES in conjunction with industry experts.

What has changed over the past 25 years or so is the recovery equipment, and the latest generation of such equipment is a considerable improvement over that of the first generation.

Group intends to file suit against the EPA, claiming the federal agency is allowing excessive amounts of virgin and imported R-22 into the U.S. market.

Migration of refrigerant to the compressor’s crankcase during an off cycle is a serious problem, as significant compressor damage can occur if the problem is not remedied. 

High-pressure switches are designed to shut down a compressor if the system’s high pressure rises above an unsafe level, not allowing the compressor to restart until the pressure returns to a safe level. 

Refrigeration products manufacturer Hussmann and Marlin Business Services Corp. have formed a strategic alliance that will provide financing options for Hussmann’s food service and food retailer customers in the United States and Canada.

Europe is now only a year away from a total ban on R-22 and other hydrochlorofluorocarbons (HCFCs). And the European HVAC industry has to act fast to get the message across to customers.