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Honeywell M847D1012 Damper Actuator

SKU#: M847D1012
List Price: $182.95 Sale Price: $126.20
Product Description

This old part number has been replaced with the M847DZONE. The new part number is a newly designed replacement which you will receive when ordering this item. See related products to learn more about the replacement.

The M847D is a two position, 24 Vac spring return damper actuator designed to operate directly driven zone dampers, used to control air flow in ducts. The synchronous motor actuator can be driven open (or closed) using any 24 volt rated two position switch - eg. a wall switch or a thermostat subbase switch. It is designed to operate ARD, EARD and ZD zone dampers.

Low voltage, spring-return damper actuator.
Equipped with anti-rotation and drive shaft extensions for direct mounting to 7/16 inch diameter coupling style dampers.
Adjustable range stops.

Related Products
Honeywell M847D-ZONE Damper Actuator

Honeywell M847D-ZONE Damper Actuator

Sale Price: $126.20

Honeywell M847D-ZONE Damper Actuator Spring return, direct mount, two position, 24 Vac

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Product Reviews

Add your review of this product Global rating: 5.00 from 3 reviews
Aug 2, 2016
Just The Ticket! by Jonathan Haight (Little Elm TX US)

The actuator was simple as pie to install and worked like a charm.

Feb 5, 2014
A great product that is easy to install and will last a long time. by William B. Krantz (Boulder Co US)

Indeed this part is very easy to install. In order to install this part, it is advisable to turn off the power to your heating system. However, this can cause a problem with the system functioning properly when this part is initially installed. Depending on the control system for your forced air heating system, you might find that this activator will not open the louver in plenum right away. The reason for this is that some control systems require the system to go through a complete cycle before they return to normal operation. Just leave the system go through its cycle - it will be functioning properly within a few hours. Note that installing this part saved me over $200 relative to having a furnace service company install the part for me. One recommendation - put a small amount of lubricating oil or light silicone grease on the teeth of the large gear on this part - it will greatly increase how long the part will last!

Oct 24, 2013
Furnace damper by Christine Davis (Brighton MI US)

The damper in the heating duct that provides zone heating for the downstairs was not opening properly although trying. Closer inspection indicated a problem with the motor. I ordered the new motor from Honeywell which promptly arrived in a couple of days and installed it. Everything is working as designed and just in time for cold weather. The part being an exact replacement for the old one made the job easy (20 minutes).


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