ensuring no modification to the mounting plate is required

Reliable Performance: Robust brass construction and high-torque 24VAC floating point control ensure consistent operation in high-cycle commercial HVAC environments

For the averaging logic to function correctly within the Lennox control architecture

Durable Construction: Heavy-duty bronze body and brass trim provide superior corrosion resistance in steam service

Always verify the part number on your existing motor shell or control module before installation

Resideo ZD12X10TZ Damper R-448A ensuring no modification to theThe Resideo ZD12X10TZ is a 12" x 10" rectangular zone damper engineered for heavy duty HVAC zoning systems. Built with a robust extruded aluminum frame and parallel blades, this unit provides high efficiency airflow control with low leakage performance (rated under 1% at 0. 5 in. WC). The built in 24Vac synchronous motor is mounted on the 10 inch side and utilizes a power closed spring return open configuration, ensuring a fail safe normally open