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Cooling Info From Warmair.net

Air Handlers

Build a sheet metal box, put two holes in opposite ends of the box, then put a fan in the box. This is an air handler in basic form. Add a hot water coil and it becomes a fan-coil for hydro-air application. Add an evaporator coil and it becomes the indoor unit for central air or a heat pump. Put in electric heating elements, circuit breakers and controls and it becomes an electric furnace.

By today’s tradesman lingo, an air handler usually refers to a unit in use for central air conditioning or for a hydro-air system.

Without the risk of fire from combustion or high temperature heating elements, an air handler offers the versatility of safe installation when in contact with combustibles. An air handler also offers multi-position application. Most manufactures build a machine that can be installed for vertical, horizontal, or counterflow (downflow) use.

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