20 in. x 8 in. Rectangular Parallel Blade Damper Zoom

20 in. x 8 in. Rectangular Parallel Blade Damper

SKU:ZD20X8

Brand: Honeywell

Honeywell
Qty Price
$136.75
/ each
In Stock! Ships in 24-48 Hours
(11 Available)
0

Resources

Specs

Size: 20"
20" x 8"
8"
Application: Air Quality
Voltage:
?
24v
Features: Adjustable Range Stops
Motor: Spring Return
Motor Side: 8"
Shape: Rectangular
Wires to Motor: 2

Description for Honeywell ZD20X8

Overview
The ZD is a power close and spring open damper. It has a 24-volt motor used to control circulating air in heating, cooling and ventilating systems. It is used when a normally-open damper is required. The ZD is typically used with the TrueZONE systems and other electronic zoning systems.
Features

  • Kevlar gearing reduces wear, more than doubling damper life.
  • Adjustable range stops.
  • Mechanical visual position indicator for damper status.
  • Solid construction using extruded aluminum frame and blades.
  • Parallel blade design for low leakage performance.
  • Quieter operation with fewer blades.
  • Simple, easy-to-wire, two-wire installation.
  • Reliable, strong, 24-volt spring-return motor.
  • Fail-safe, normally open operation.
  • Compatible with conventional and networked zoning.
  • Ordering Instructions: Order ZD (dimension 1) x (dimension 2). (Motor is always mounted on dimension 2 side.) For example, ZD10x8 is a 10 in. x 8 in. damper with the motor on the 8 in. side; but a ZD8x10 is a 8 in. x 10 in. damper that has the motor on the 10 in. side.
  • Damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct).

20 in. x 8 in. Rectangular Parallel Blade Damper

REVIEW SNAPSHOT®

by PowerReviews
Honeywell10 in. x 20 in. Rectangular Parallel Blade Damper
 
4.8

(based on 15 reviews)

Ratings Distribution

  • 5 Stars

     

    (13)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

I have three of these ZD dampers

Purchased two from Pex to complete the replacement of the old Honeywell dampers on my 3 zone system (from 1978). The old dampers were leaky around the motors. These dampers have a nice...Read complete review

Purchased two from Pex to complete the replacement of the old Honeywell dampers on my 3 zone system (from 1978). The old dampers were leaky around the motors. These dampers have a nice tight seal and smooth, quiet operation.

VS

Most Liked Negative Review

 

8x14 damper

Actuator shaft arrived bent and it causes the damper motor to rock. I will eventually need to figure out a fix. I was in a jam with the heat and needed to use what...Read complete review

Actuator shaft arrived bent and it causes the damper motor to rock. I will eventually need to figure out a fix. I was in a jam with the heat and needed to use what was delivered.

Reviewed by 15 customers

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5.0

Very good product

By Jim

from Cape Cod

Verified Buyer

Comments about 10 in. x 20 in. Rectangular Parallel Blade Damper:

Interfaced into supply duct with ease, adjustment of dampers is a good feature.

 
5.0

Great product.

By Sparky

from Cleveland,Ohio

Verified Buyer

Comments about 8 in. x 20 in. Rectangular Parallel Blade Damper:

Damper and actuator work great. Better design than previous. No more bands to break.

 
3.0

8x14 damper

By Luther

from Boston, Ma

Verified Buyer

Comments about 8 in. x 14 in. Rectangular Parallel Blade Damper:

Actuator shaft arrived bent and it causes the damper motor to rock. I will eventually need to figure out a fix. I was in a jam with the heat and needed to use what was delivered.

 
5.0

good quality

By Vic

from WAshington, DC

Verified Buyer

Comments about 10 in. x 12 in. Rectangular Parallel Blade Damper:

Works great, easy install, good quality!

 
5.0

Good quality product

By Furnace Man

from Columbus, Ohio

Verified Buyer

Comments about 8 in. x 16 in. Rectangular Parallel Blade Damper:

Great product.
Great parts that are strong.

 
5.0

Good product

By SO

from Minnesota

Verified Buyer

Comments about 20 in. x 14 in. Rectangular Parallel Blade Damper:

Install was easy. Worked great with the Honeywell HZ311 zone controller. Size was right on.

 
5.0

Honeywell zone Dampers

By Geopro

from Columbus, Ohio

Verified Buyer

Comments about 26 in. x 14 in. Rectangular Parallel Blade Damper:

These oversize dampers were not available from local sources. Pex Supply had access and shipped within 24 hours of the order. I made a mistake on my first order and did not realize that the motor control is always mounted on the second dimension. (In this case, the motor is on the 14" side). Pex Supply had an RMA for return in my mail box before we finished our phone conversation. Great people to work with!

 
5.0

GREAT PRICE

By JOHNNY

from PITTSBURGH PA

Verified Buyer

Comments about 8 in. x 18 in. Rectangular Parallel Blade Damper:

SEARCHED AROUND SAME PRODUCT EVERY WHERE ELSE WAY MORE EXPENSIVE

(0 of 1 customers found this review helpful)

 
5.0

i would buy this product again!

By kwilliby

from omaha, ne

Verified Buyer

Comments about 8 in. x 14 in. Rectangular Parallel Blade Damper:

i purchased two of these dampers. i had the old style that kept giving me trouble. the newer style is made much better. the wiring was very simple. i did have to cut out about 1" of the heat run in order to get these to fit. they are a bit wider than my old models.

Pexsupply had great prices and quick delivery. I will definitely buy from them again.

 
4.0

Would purchase it for my own home.

By Hut-Tex

from Hutto, Texas

Verified Buyer

Comments about 16 in. x 16 in. Square Parallel Blade Damper:

Typical Honeywell quality, excellent construction.[...]Checked the shaft set screws and did find one motor loose but tightening it was simple.I found the best price through Pex Supply and I will shop Pex again.Thanks,Kenneth

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Q&A: Ask the Questions, share answers

Do you have questions about this product?

get answers from real customers and in-house experts with AnswerBox.

4 Questions | 8 Answers
Displaying questions 1-4
  • 10 in. x 16 in. Rectangular Parallel Blade Damper

    Q:

    are the dimensions of the damper inside or outside measurements
    Asked on 3/23/2014 by Don from Asheville, NC

    2 answers

    • VERIFIED BUYER

      A:

       That is the dimension of the ductwork in which you make the installation.

      Answered on 3/23/2014 by Anonymous
    • VERIFIED BUYER

      A:

      The measurements are for the inside diameter.  Cut a 10 x 16 hole in you duct, slide the damper in and screw the damper flange down.
      Sent from Yahoo Mail on Android

      Answered on 3/23/2014 by Anonymous
  • 24 in. x 24 in. Square Parallel Blade Damper

    Q:

    I am looking for a damper to supply air for an indoor generator that will spring open with loss of power and will be latched out until the generator shuts down and then will power shut.
    Asked on 4/23/2012 by Malcolm from Yakima Wa

    4 answers

    • VERIFIED BUYER

      A:

      The generator can run without the damper open for several seconds. Therefore, I suggest that you power the damper opening motor from the generator A/C output (between the generator and the output circuit breaker). The damper would spring-return closed when the generator shutdown and the output circuit breaker opened.
      JRL

      Answered on 4/23/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      I believe you could connect a 12V relay (from a doorbell, for example) to
      be powered by the generator, then wire the 12V terminals of the transformer
      to open a normally-closed/power-open damper.
      That way, when the generator is on, it powers the relay, which powers the
      damper motor, and opens the damper flaps. When the generator kicks off,
      the transformer loses power, and the damper springs closed.
      Sent from my iPhone

      Answered on 4/23/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      Hi Malcom,
      In my experience the 24 volt motor with the dampers from PexSupply can be configured either to open or close the damper under power. (With round it is a matter of switching the motor from one side to the other and I think it is the same with square or rectangular.) So if you configured it so that it closed under power, and just connected the 24volt transformer to the power whose loss you are concerned with, the damper would stay closed until that power dropped, at which point the spring would open it. Then it would close again when that power came back on.
      Now what would be tricky is if the generator kicked in and supplied power to the circuit your damper transformer was connected to, the damper would close again. So obviously you would have to isolate that circuit so that it only had power from the mains, and not from the generator.
      Hope that helps.
      Dan

      Answered on 4/23/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      This should work for that application.
      Rich Hubli
      VP of Operations, KSE

      Answered on 4/23/2012 by Another PexSupply Customer
  • 6 in. x 6 in. Square Parallel Blade Damper

    Q:

    should this unit be on 24hrs 7days a week? we have three of them on our 7 storie building, we have 245 units in the building
    Asked on 12/29/2010 by Gem from Corvallis Oregon

    1 answer

    • CUSTOMER CARE

      A:

      No, this unit should not run 24/7. It should only operate on a call for heat or when it is satisfied.

      Answered on 1/6/2011 by PexSupply Staff from NY
  • 10 in. x 8 in. Rectangular Parallel Blade Damper

    Q:

    HOW TO INSTALL THIS DAMPER MODEL.
    Asked on 9/2/2010 by Anonymous

    1 answer

    • CUSTOMER CARE

      A:

      This damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct). The full installation directions can be found on page 3 of this product data sheet: http://s3.pexsupply.com/manuals/1284579592059/39198_PROD_FILE.pdf

      Answered on 9/17/2010 by PexSupply Staff from NY
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