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Honeywell M847D-ZONE/U 24V spring-return damper actuator with LCD cleaner

Honeywell

Honeywell M847D-ZONE/U Replacement Motor 24V + LCD Cleaner

SKU CH-AG45-5YR4P

Replacement spring-return damper actuator with adjustable range stops and anti-rotation extensions for 7/16 inch coupling dampers

  • ProtocolHomekit
  • TypeAccessories
  • App-EnabledYes
  • Direct replacement for M847D1004 simplifies upgrades
  • Spring-return actuator opens in 30 seconds for fast response
  • Adjustable range stops tailor damper travel to each zone
  • Anti-rotation and drive shaft extensions mount directly to 7/16 inch dampers
  • Low-voltage 24 Vac design ensures safe, reliable operation

Replacement Motor for Zone Dampers

The Honeywell M847D-ZONE/U is a 24 Vac spring-return actuator designed as a direct replacement for the M847D1004 model. It fits ARD and ZD zone dampers and includes anti-rotation and drive shaft extensions for direct mounting to 7/16 inch diameter coupling style dampers. The bundle also supplies an LCD cleaner.

Suits HVAC Zone Systems

This motor suits technicians and homeowners maintaining existing Honeywell zoning panels that use two-position damper control. It is not suitable for modulating or floating control applications, nor for dampers requiring a different voltage or shaft coupling size.

Check Damper Compatibility

Verify that the existing damper uses a 7/16 inch diameter coupling and operates on 24 Vac two-position logic before ordering. Confirm the wiring terminals M1, M6, and optional M4 match the current installation. Ensure the 30 second power open and 10 second spring return timing meets the system requirements.

Highlights

  • Direct replacement for M847D1004 simplifies upgrades
  • Spring-return actuator opens in 30 seconds for fast response
  • Adjustable range stops tailor damper travel to each zone
  • Anti-rotation and drive shaft extensions mount directly to 7/16 inch dampers
  • Low-voltage 24 Vac design ensures safe, reliable operation

Specifications

BrandHoneywell
ProtocolHomekit
TypeAccessories
App-EnabledYes

Questions about this item

What existing damper shaft size does this motor mount to directly?

It mounts directly to a 7/16 inch diameter coupling style damper using the included anti-rotation and drive shaft extensions.

Does this actuator replace the older M847D1004 model in an existing zoning system?

Yes, it is the direct replacement for the M847D1004 and works with ARD and ZD zone dampers in the same system.

How can I confirm the motor is cycling correctly after installation?

Observe the 30 second power-open and 10 second spring-return timing, and check for LED indication on the optional M4 terminal.

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