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6 in. Automated Damper Normally Closed

$8253
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  • Available in 6 in., 8 in. and 10 in. diameters
  • Durable galvanized steel construction for long-lasting use
  • Features low-voltage stud mount transformer and motor for safety
How to Get It

Product Overview

The ZoneMaster Zone Control Damper saves money on heating and cooling by controlling temperatures in individual room. Available in diameters of 6 in., 8 in. and 10 in. Available in normally open or normally closed with power off.

Additional Resources

From the Manufacturer

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.3
    out of 22 reviews
  • 100%recommend this product
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Showing 1-10 of 22 reviews
Good, but has room for improvement. I installed two of these 6" versions for an indoor home-brew ...
Good, but has room for improvement. I installed two of these 6" versions for an indoor home-brew exhaust system. Overall the experience was good, but there are two issues. 1. One of the damper doors was not even close to perpendicular from the factory, and the foam seals were stuck in the wrong place. I was able to carefully remove the foam seals and adjust a set screw on the damper to make sure it was perpendicular to the airflow, then reinstall the foam. It was a pain. 2. The second issue is that when the motor starts running to open the damper, it doesn't make contact with the damper assembly for a solid 10-15 seconds. I don't see a way to adjust this. The reason I care is that I have the fan and damper on the same switch and the fans scream in agony and create a lot of pressure against the damper before it even tries to open up. For this reason, i have to turn on the system in two steps, first the damper - wait 20 seconds, then the fans. Open to hearing suggestions from the manufacturer! Overall, a decent buy, but would have preferred not to fix one of the units before install and would like to see faster damper actuation.
by
Response from Suncourt Product ExpertAug 2, 2018
Thank you for using our product. We appreciate the good rating. We are sorry for the apparent assembly error on one of your dampers. Always give us a call if you find something like that. We are glad you were able to get it working. The damper opening time is common among all dampers. Motors are incapable of immediately opening a damper. The actuator has to have time to engage the pin and turn the shaft. This is rarely a problem but in your particular application you will need the fans and damper on separate switches. Suncourt
    • Recommended
    Perfect product for the price
    I bought it to use it with my humidifier & it does exactly what it's suppose to. Now the bypass in my humidifier is only open when needed(humidistat calls for more humidity) & it's also eliminates the need of manually opening & closing the damper when season starts/ends. Price is more than reasonable
    by
    • DIY
    • Verified Purchase
    • Recommended
    5 found this review helpful
    Beware of binding
    As a note, I have only installed three units so far, one to go. None have been functionally tested in the final system yet. The automated damper seems sturdy and well built. The metal gauge of the body is fairly thick so that it holds its shape well. Tolerances inside are generous so that the flapper has plenty of space and won't bind on the inner surfaces of the body. But... some designer didn't do the tolerances correctly on the bolt which acts as a stop for the flapper. A little bit of distortion in the right direction on the body and the flapper assembly gets push up so that the cast feature which is used to turn the flapper, and the bolt that controls max open and closed positions interferes and the flapper sticks open and won't move. Careful attention is needed to ensure that assembly does not distort the outer housing causing it to bind and prevent the mechanism from working. To give yourself some extra breathing room, remove the threaded bolt and grind two flats in the threads where is passes nearest the cast component. The two flats should be about 1/2 inch long on opposite sides of the threaded end of the bolt, beginning at the threaded end of the bolt. Re-install the bolt with the flats aligned to increase clearance to the cast component and the bar that the motor operates to engage the cast component. A picture should accompany this review to show the places for the flats to be ground. Even if you install it perfectly with no distortion, I'd still grind the flats so that if the system sags or creeps a little over time the cast component does not bind up and negate the reason you installed it.
    by
    • DIY
    • Verified Purchase
    • Recommended
    7 found this review helpful
    5 Star Review
    Rating provided by a verified purchaser
    by
    Response from Suncourt Product ExpertFeb 7, 2019
    Thank you for your review! Suncourt
    • Verified Purchase
    Works perfect ...
    Works perfect
    by
    Response from Suncourt Product ExpertJun 12, 2018
    Thank you for using our product. Suncourt
    • Verified Purchase
    Easy install. And upgrade versus a “spring flap” damper. Hope...
    Easy install. And upgrade versus a “spring flap” damper. Hope it lasts
    by
    Response from Suncourt Product ExpertApr 24, 2018
    Thank you for using our product. You should get years of use under normal conditions. Suncourt
    • Verified Purchase
    Unit seems well constructed and easy to hook-up & install....
    Unit seems well constructed and easy to hook-up & install. Works exactly as expected. Best feature: SUPER QUIET! Time will tell on durability, but working fine so far.
    by
    Response from Suncourt Product ExpertApr 17, 2018
    Thank you for using our product and giving it the great review. Suncourt
    • Verified Purchase
    Well built easy install...
    Well built easy install
    by
    • Verified Purchase
    4 Star Review
    Rating provided by a verified purchaser
    by
    • Verified Purchase
    The installation was fairly easy. No problems ...
    The installation was fairly easy. No problems
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    • Verified Purchase
    Showing 1-10 of 22 reviews