iO HVAC Controls HD-MOTOR Damper Actuator 320819-301 maintaining the mechanical integrity of

maintaining the mechanical integrity of the original installation

As a veteran-grade immersion-type heater

Durable Construction: High-quality diaphragm materials designed for thousands of duty cycles in residential applications

The DPDT configuration allows for simultaneous control of two isolated circuits

System Protection: Optimizes drainage efficiency to prevent water backup into the blower compartment and electronics

iO HVAC Controls HD-MOTOR Damper Actuator 320819-301 maintaining the mechanical integrity ofThe iO HVAC Controls HD MOTOR is a robust 24V 2 wire actuator designed for professional grade reliability in residential and light commercial zoning systems. As a spring return normally closed motor, it provides a failsafe operation for fresh air dampers, ensuring the intake remains sealed when de energized to prevent unconditioned air infiltration. This motor is engineered as a direct, high performance replacement for the Honeywell M847D ZONE, as