Bitzer has announced it has modified all models of its two-stage reciprocating compressors to enable them to run with R-448A and R-449A refrigerant. The refrigerants have global warming potentials (GWPs) of 1,386 and 1,397 respectively.

Frascold, the second largest manufacturer of semi-hermetic compressors in Europe and the third largest in the world, has opened a subsidiary company in the United States: Frascold USA Inc. Frascold USA will directly support both the U.S. and Canadian markets on behalf of Frascold. The head office will be located in Seattle.

Danfoss was recently named by the Economic Development Council of Tallahassee/Leon County as a featured business as part of the council’s “Made in Tallahassee: Produced Regionally, Sold Globally" initiative.

Emerson Climate Technologies has approved DuPont Opteon® XP40 (R-449A) and XP10 (R-513A) for use in a wide range of its scroll and semi-hermetic compressors. This approval paves the way for the use of Opteon refrigerants in new and existing compressors for a number of refrigeration applications.

Voltage unbalances exceeding more than 2 percent in three-phase systems can cause current unbalance among the windings. These voltage and current unbalances can cause an increase in winding temperature and an overheating problem that can be detrimental to the motor.