US DRAFT CO. – The Supply Air System is designed to supply the proper amount of fresh air to a mechanical room or laundry room. Commonly overlooked, an insufficient supply of fresh air can cause fossil fuel-fired heating appliances, as well as clothes dryer to operate improperly, potentially damaging the appliance. The Supply Air System utilizes EC-Flow™ Technology to maintain a field-determined room or duct pressure. The Supply Air System may interlock with up to eight appliances when used in conjunction with the XB expansion board.

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