Resideo ZD16X18TZ Damper 321894-709 This direct HVAC blower relay

This direct HVAC blower relay replacement is designed to handle inductive loads typical of residential blowers

allowing for proper electrical routing to your unit's contactors and circuit breakers

whereas other kits in the series may be designed for water or glycol applications with different elastomer compositions

then thread the new operator onto the existing valve base

Common Questions: What actuators are compatible with the 599-10316

Resideo ZD16X18TZ Damper 321894-709 This direct HVAC blower relayThe 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