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A ducted central return brings air from central return registers back to the air handler through insulated, air-sealed ducts
Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
Door has been undercut to allow for specified amount of air flow therefore contributing to pressure balancing
Duct to boot connection of jump duct not fastened and sealed
Right – Transfer grilles, Jump ducts, and wall grilles provide passive returns for air returning from bedrooms to the central HVAC system