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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


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This overview of the benefits of zoning includes tips for selling to consumers and businesses. Tom Jackson discusses options for new construction and retrofit, as well as some ways a residential contractor can get into the light commercial business with zoning products. Speaker: Tom Jackson, CEO, Jackson Systems
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