R/A

Definition

A return air register (R/A) is a grille or vent through which air is drawn from a conditioned space back to the HVAC system for reconditioning and recirculation.

Purpose

The purpose of a return air register is to allow the HVAC system to collect air from the living space, filter it, and recondition it to maintain indoor air quality and temperature.

Examples of Use

• In residential HVAC systems, return air registers are placed in central locations to efficiently collect air from the entire home.
• Commercial buildings use return air registers in offices and common areas to maintain balanced air circulation and quality.
• Return air registers in large facilities help the HVAC system to continuously recondition and circulate air, enhancing comfort and efficiency.

Related Terms

• Supply Air Register: A vent through which conditioned air is delivered into a space.
• Ductwork: A system of ducts used to transport air in HVAC systems.
• Air Filter: A device used to remove particles from the air before it is reconditioned.

Notes

Proper placement and maintenance of return air registers are essential for efficient HVAC system operation and maintaining good indoor air quality.