Refrigeration

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NIST’s study, entitled “Limited options for low-global warming potential [GWP] refrigerants,” focused on residential and small-commercial single-package and split air conditioning systems, but the authors said their conclusions also generally apply to room air conditioning units and other refrigeration and heat-pump systems currently using common, ozone-depleting refrigerants such as R-410A or R-22, which are still used in some developing countries today. “The takeaway is there is no perfect, easy replacement for current refrigerants,” NIST chemical engineer Mark McLinden said.

The easybend kit consists of four color-coded, industrial-grade, solid, polyethylene mandrel diameters. It is 13 feet long and fits quickly, but snugly, into soft copper lineset tubing sizes of ¼-, 3/8-, ½-, and 5/8-inch.

Single phasing often occurs in an electric motor when one pair of points on its power contactor fails because of the destructive arcing that takes place each time these points open or close. This arc suppressor is designed for AC power applications that operate between 110-480 V and have a maximum allowable current of 235 A (rms).

Extreme Ultra is a solution designed to repair refrigerant gas leaks by guaranteeing a complete, permanent, and elastic endurance of the system. It’s a mix of components, which are gas- and lubricant-friendly.