Rugged Construction: Nickel-plated brass housing ensures durability against aggressive system fluids

Designed for multi-speed versatility

it should typically be 0

this kit prevents air leakage and combustion byproduct bypass

Resideo ZD22X10TZ Damper R-407A Rugged Construction: Nickel-plated brass housingThe Resideo ZD22X10TZ is a 22" Wide X 10" High Parallel Blade Zone Damper engineered for high performance airflow management in multi zone HVAC applications. Built for technicians who demand reliability, this rectangular zone damper features a 24VAC synchronous motor that operates in a power closed spring return open configuration. The fail safe design ensures that air continues to circulate should power be lost, maintaining critical system