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All About Air Handlers

Multi-ethnic group of two men and one woman repairing a home's air conditioner unit outdoors. African descent man in foreground uses a digital tablet to access the repairs. They all wear blue uniforms.

An HVAC (heating, ventilation, and air conditioning) air handler unit, or AHU, may resemble a furnace in appearance, but its purpose is very different. It conditions and circulates both cool and hot air, depending on what time of year it is.

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