Introduction
A plenum box is a crucial component in heating, ventilation, and air conditioning (HVAC) systems tasked with circulating conditioned air throughout a space. Positioned near the furnace or air handler, it serves as a key junction connecting supply air ducts to return air ducts.
Connection of Plenum Boxes and Supply Ducts
Typically, plenum boxes are linked to the supply ducts, which transport treated air from the furnace or air handler to the vents or registers within a space. Likewise, return ducts, which carry air back to the furnace or air handler for reconditioning, are also connected to the plenum box.
Important Functionalities of Plenum Boxes
One of the primary functions of a plenum box is to ensure that air from the supply ducts is evenly distributed across a room or entire building. Additionally, it facilitates the proper mixing of return air with fresh supply air, which is critical for maintaining consistent temperatures and high air quality throughout the space.
Conclusion
Plenum boxes are commonly found in commercial and industrial facilities’ heating and cooling systems, but they are also used in residential settings. Constructed from durable materials like sheet metal, they are designed to withstand the extreme heat and pressure often associated with HVAC systems.
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