Regal Beloit Corp. has become an expert in FER compliance by redesigning its products to meet the new standards, including the Genteq^® Ensite^® motor, DEC Star^® blower assemblies, and a new electronically commutated motor (ECM) to provide FER compliance for entry-level fans. These products were on display at the 2019 AHR Expo.

The new line, MicroDS, is available for low- and medium-temperature merchandisers and is charged with up to 150 grams or just 5.3 ounces of propane — slightly more than a half-cup.

Essentially, I noted that changing demographics, new technologies, and evolving regulations may result in wider acceptance of self-contained refrigeration units that utilize propane. Several readers took issue with this, noting that central rack refrigeration systems — which are traditionally used in supermarkets around the U.S. — are not going anywhere and that propane units have too many drawbacks to ever seriously be considered for large-scale use.