Refrigeration

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Over the course of recent years, the HVACR industry has been focused and made strong progress on developing and advancing refrigeration equipment and systems responsible-use practices.

Refrigeration service technicians point out the need to keep up to date with what is happening elsewhere that could affect them. So, from time to time, we like to bring readers up to date on some news items related to refrigeration regulatory and safety issues.

Refrigeration System Co. (RSC) of Columbus, Ohio, which provides services for industrial refrigeration, has announced the completion of its merger with Freije Engineered Solutions Co. of Fishers, Ind.

Krack Corp. has announced that it has sold the assets of its industrial business to SGS Refrigeration. SGS will sell the products it has acquired under a new SGS/Krack name in the industrial marketplace.

If you want to get some idea of where the U.S. Environmental Protection Agency (EPA) is leaning when it comes to refrigerants, consider that EPA’s GreenChill program gave a “Best of the Best” award to a store using a transcritical CO2 system.

Danfoss hosted its 20th EnVisioneering^SM Symposium, “The Climate and Energy Nexus in Commercial Refrigeration.” Participants included commercial refrigeration OEMs, supermarket chains, contractors, and more who addressed important issues on the refrigeration and refrigerants agenda.

Many service technicians experience service calls where the compressor has both a low head pressure and a high suction pressure. Often, the refrigeration equipment is still running, but the product temperature is suffering about 7-10°F.

There is so much talk these days about new refrigeration technologies and new refrigerants that it is sometimes difficult for contractors to sort out what’s theoretical and what’s actually up and running in the field. Here’s a snapshot of some of the latest refrigerants being utilized across various projects.

Not all temperatures sensors are created equal and not all instruments and controllers use the same type of temperature sensors. So the first step in troubleshooting or replacing this type of sensor is to first recognize the type of temperature sensor being used.