Resideo ZD16X18TZ Damper 340155-7024 specifically the 40XL-8-150 model

specifically the 40XL-8-150 model

though specific auxiliary leads may vary by model year

long-term operation in high-heat environments

Its low pressure-drop characteristics and captured springs make it a reliable choice for commercial and industrial potable water protection applications where space and safety are primary concerns

Resideo ZD16X18TZ Damper 340155-7024 specifically the 40XL-8-150 modelThe Resideo ZD16X18TZ is a robust 16" Wide X 18" High parallel blade zone damper engineered for precision airflow control in residential and light commercial HVAC zoning applications. Built with a high grade extruded aluminum frame and blades, this unit is designed for long term durability and low leakage performance. The synchronous motor is a 24Vac power closed spring return open actuator, ensuring a fail safe normally open position during power