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The SOUTHWARK METAL 4R8162324 is an insulated furnace coil plenum measuring 16 inches wide by 23 inches deep by 24 inches tall. It serves as the transition air chamber mounted directly above or adjacent to a furnace, housing the evaporator coil and directing conditioned airflow into the duct system. The insulated construction limits condensation and heat loss across the plenum shell. This component is typically installed by licensed HVAC technicians during new system installations or coil replacements in residential forced-air systems.
The 4R8162324 is designed for residential forced-air HVAC applications where a field-fabricated or replacement coil plenum is required. The 16 inches x 23 inches x 24 inches footprint suits standard residential air handler and furnace configurations where the evaporator coil is installed in an upflow or downflow arrangement. Installers select this plenum when the existing plenum is damaged, improperly sized, or when a new coil cabinet requires a dedicated sheet metal enclosure with insulation lining.
Designed as an OEM-style replacement or new-installation plenum for residential forced-air furnace and evaporator coil assemblies requiring a 16 inches x 23 inches x 24 inches insulated sheet metal enclosure.
Installation should be performed by a licensed HVAC technician in accordance with local mechanical codes and ACCA guidelines. Shut down and lock out the furnace and disconnect electrical power to the system before removing or installing the plenum. Seal all joints with approved HVAC mastic or foil tape to maintain system efficiency and prevent air bypass. Verify that the plenum dimensions align with the coil cabinet and supply duct opening before fastening.
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