Accessory coils have been introduced for the company’s 2- to 5-ton size mini-duct heating and cooling systems. These include cooling, hot water, chilled water, and heat pump coils. Model 2436 (2- to 3-ton coils) are replaced with Model 2430 (2- to 2-.5-ton coils); and Model 2436 (3.5- to 5-ton coils) is replaced by Model 3642 (3- to 3.5-ton coils) and Model 4860 (4- to 5-ton coils). All of the manufacturer’s cooling coils and modules in the line are outfitted with easily replaceable thermal expansion valves for use with R-410A and R-22/R-407C and snug-lock latches, says the company. All of the manufacturer’s cooling coils are ARI listed.
Unico Inc., 7401 Alabama Ave., St. Louis, MO 63111-9906; 800-527-0896; 314-457-9000 (fax); www.unicosystem.com.