This vertical design N--coil is a furnace coil designed to provide the highest standards of reliability and durability. The coils are available for use in Puron®, R--410A refrigerant and R--22 systems. Both designs have a painted case and come with factory--installed thermostatic expansion valves (TXV). The coils are offered in different width configurations for use in multiple installation applications. Additionally, they are offered in a transition configuration, a design which simplifies making field-supplied transition duct configurations. Easy maintenance is provided as the coil slides out of the cabinet after removing the access door and service panel. The coils are available in sizes 018 through 061 (1--1/2 to 5 tons).