Resideo M847D-VENT TrueZONE Normally Closed Ventilation Damper Actuator

The Resideo M847D-VENT is a replacement ventilation damper actuator designed for use with Honeywell TrueZONE zoning systems. This normally closed actuator provides reliable control of fresh air ventilation dampers in residential and light commercial HVAC applications.

Key Features:

• Normally closed (NC) configuration—damper closes when power is removed
• Designed specifically for ventilation damper control in zoned systems
• 24VAC operation for standard HVAC control compatibility
• Direct replacement for Honeywell/Resideo TrueZONE ventilation dampers
• Spring return mechanism ensures fail-safe damper closure
• Durable construction for long-term reliability

This actuator is ideal for controlling outdoor air intake dampers in energy recovery ventilators (ERV) and fresh air systems integrated with TrueZONE panels. The normally closed design ensures the ventilation damper remains closed during system shutdown, preventing unwanted air infiltration and maintaining energy efficiency.