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FAMCO Motorized HVAC Damper – Normally Closed

Motorized HVAC Damper – Normally Closed

Rated 4.73 out of 5 based on 15 customer ratings

(15 customer reviews)

$139.96 – $203.96

Quality constructed in 28 gauge Galvanized steel
Comes in a range of diameters: 4 inch, 5 inch, 6 inch, 7 inch, 8 inch, 10 inch, 12 inch, and 14 inch
Made with 24 volt or 120 volt motors
End switches are available with all models

Download the Product Specs .PDF

Size

4 inch
5 inch
6 inch
7 inch
8 inch
10 inch
12 Inch
14 Inch

Voltage

24 VOLT
120 VOLT

End Switch

Clear

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SKU ADC Categories Featured Products, HVAC Dampers, Motorized Zone Dampers

Description

The FAMCO ADC Motorized HVAC Damper - Normally Closed is normally closed with a power open and spring return motor assembly. The ADC is made with 24 volt or 120 volt motors. End switches are available with all models. End switches allow another appliance to be operated when the damper has reached its full power (either open or closed). The floating motor mount assures proper alignment of motor, shaft and damper to prevent binding, while the clutch/coupler reduces the number of moving parts for greater service life. All units without the end switch come with a flow control adjustment so that the damper blade can be blocked from opening or closing 100%. (Note: the end switch will not work if the flow control adjustment is preventing the damper from reaching it's full potential.) Quality constructed in 28 gauge Galvanized steel. The FAMCO ADC Motorized HVAC Dampers come in a range of diameters: 4 inch, 5 inch, 6 inch, 7 inch, 8 inch, 10 inch, 12 inch, and 14 inch. The FAMCO ADC Motorized HVAC Damper is manufactured by FAMCO in the United States and comes with a 1-year warranty against product defects and workmanship. If you have any questions about this product, please refer to the FAQs above or feel free to contact us.

Watch the product video on YouTube.

PDF Download

Download the ADC product PDF.

Spec Sheet

Questions and answers of the customers

What's the current draw of the ADC8120?

Q What's the current draw of the ADC8120? answer now
Asked on May 19, 2021 6:45 am

A
All of our 120v motors will have a power draw of 0.08 current amps, while our 24v motors will be 0.36 current amps.

What is the current draw on ADC424?

Q What is the current draw on ADC424? answer now
Asked on February 16, 2021 5:26 pm

A
The current draw on our 24 volt motors is 0.36 amps.

What is the Max CFM that the damper can hold back ( I'm looking at a 10" normally closed , power open )

Q What is the Max CFM that the damper can hold back ( I'm looking at a 10" normally closed , power ...... Read more answer now
Asked on January 22, 2021 7:39 pm

A
We do not have CFM ratings data for this product at this time.

Is there a inner flange to support the foam seal or is the inside of the pipe basically smooth except for the shaft penetrations and swages on the ends?

Q Is there a inner flange to support the foam seal or is the inside of the pipe basically smooth ex...... Read more answer now
Asked on December 23, 2020 8:23 am

A
No, there is no flange, the foam gasket is adhered directly to the inside walls of the tube.

What is meant by "End Switch"?

Q What is meant by "End Switch"? answer now
Asked on November 30, 2020 12:06 pm

A
Our end switch is a physical limit switch built into the bracket that will only activate when the damper is in the fully powered position - this switch has lead wires for connecting to an additional appliance, like an inline fan, that you would only want to power on after the damper is fully powered.

A how do you wire the ADC624ES 24 V WITH END SWITCH

How do I specify Normally Closed on my order?

Q How do I specify Normally Closed on my order? answer now
Asked on November 30, 2020 12:05 pm

A
We have separate product pages for our normally open and normally closed dampers, so if the product description on the page says "normally closed", then you are ordering the correct damper.

15 reviews for Motorized HVAC Damper – Normally Closed

4.7

Based on 15 reviews

5 star	73	73%
4 star	26	26%
3 star		0%
2 star		0%
1 star		0%

Showing 11 of 15 reviews (5 star). See all 15 reviews

Rated 5 out of 5

Wood burner – January 18, 2018

Works great

Works great
Rated 5 out of 5

Jeff Van Kirk – February 13, 2018

worked great

just what we needed
Rated 5 out of 5

Terrance KAMINSKI (verified owner) – January 17, 2019
Rated 5 out of 5

Joseph Smail (verified owner) – March 16, 2019

reasonably priced with a quick turnaround, Quality workmanship!
Rated 5 out of 5

Anonymous (verified owner) – June 18, 2019

Great customer service
Rated 5 out of 5

Anonymous (verified owner) – February 15, 2020

Very fast service, excellent robust product. Good packaging, never anything damaged in shipment. Thanks!
Rated 5 out of 5

Anonymous (verified owner) – March 3, 2020

Well made and solid. Nice to get something made in North America.
Rated 5 out of 5

Anonymous (verified owner) – September 30, 2020

I have not installed this damper yet, but the quality looks really good.
Rated 5 out of 5

Anonymous (verified owner) – December 28, 2020

Great product! Nice quality construction.
Rated 5 out of 5

Thomas D. (verified owner) – February 26, 2021
Rated 5 out of 5

Anonymous (verified owner) – May 24, 2024