Century’s AHGV Series of variable speed hydronic air handlers for R-410A provides freeze protection in both heating and cooling. The variable speed blower motor operates about 90 percent more efficiently than PSC motors, the company says. In 1-1/2 to 5 ton sizes, models are truly multi-positional: vertical or horizontal left or right. The 3/4-inch fittings assure correct water supply connections.

Heat Controller Inc., 1900 Wellworth Ave., Jackson, MI 49203; 517-787-2100; 517-787-9341 (fax); www.century-hvac.com