'/%3E%3C/svg%3E)
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
 --%3E %3Csvg version='1.1' id='Half' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cg%3E %3Cpath fill='%23F15C02' d='M30.05,70.23l3.79-12.01L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1h1.58 L93.71,7.18c-3.58-3.82-8.66-6.23-14.28-6.23H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,5.41,2.22,10.32,5.79,13.88 L30.05,70.23z'/%3E %3C/g%3E %3Cpath fill='%23FBC8B4' d='M93.71,7.18L60.98,39.6H91.2L65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82l5.55-17.59L6.75,93.32 c3.55,3.54,8.44,5.73,13.82,5.73h58.87c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,15.4,97.01,10.69,93.71,7.18z'/%3E %3C/svg%3E){kind=small}
' fill='%23F15C02' d='M49 0C21.938 0 0 21.938 0 49s21.938 49 49 49 49-21.938 49-49S76.062 0 49 0m0 82.709a7.54 7.54 0 1 1 0-15.08 7.54 7.54 0 0 1 0 15.08m7.54-28.412a7.541 7.541 0 0 1-15.08 0V22.831a7.54 7.54 0 0 1 15.08 0v31.466z'/%3E%3C/svg%3E)
MANUALS (1)
Product Highlights
Description
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).
Specs
| Size: | 8" x 18" |
|---|---|
| Application: | Air Quality |
| Voltage: | 24V |
| Features: | Adjustable Range Stops |
| Motor: | Spring Return |
| Motor Side: | 18" |
| Shape: | Rectangle |
| Wires to Motor: | 2 |
Questions?
Product Reviews
Most Liked Positive Review
I have three of these ZD dampers
Most Liked Negative Review
 --%3E %3Csvg version='1.1' id='With-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23FBC8B4' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
8x14 damper
Damper
Well made, good price
perfect fit
Well built damper at a decent price
works great. fast delivery.
Make sure you have proper measurements
Acuator rod bent both units
Perfect match, fit and condition
Very good product
Great product.
Product Q&A
8 QuestionsQ: On the honey well damper motor how long can the be energize for will the damper motor over heat or burn out.
Asked by Kim 10 years ago
Add your answer
Verified Reply- Supplyhouse StaffThey are designed for continues use, they shouldn't over heat or burn out.
Q: I am looking to power a 12x12 and a 10x20 and the zoning board. Will the 40 VA transformer be enough to power all of these? Thanks
Asked by John 11 years ago
Add your answer
Verified Reply- Supplyhouse Staffyou would need to figure out the draw from both dampers and the panel to figure out if 40VA is enough power. We have no way of confirming that.
Q: Hi, can you tell me the Damping Torque Rating of the damper? Thanks very much!
Asked by David 12 years ago
Add your answer
Verified Reply- Supplyhouse StaffMinimum 71 in.-oz. (500 milli-newton meters) output torque available when motor is energized and device is at the spring return initial start position.
Q: What is the dimension of the damper in the direction of airflow?
Asked by Thomas 12 years ago
Add your answer
Verified Reply- Supplyhouse Staffit is made to fit in a 6X14 duct. air flow shouldnt matter.
Q: are the dimensions of the damper inside or outside measurements
Asked by Don 12 years ago
Add your answer
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
That is the dimension of the ductwork in which you make the installation.
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 by Malcolm 14 years ago
Add your answer
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
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
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
This should work for that application. Rich Hubli VP of Operations, KSE
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 by Gem 15 years ago
Add your answer
Verified Reply- PexSupply StaffNo, this unit should not run 24/7. It should only operate on a call for heat or when it is satisfied.
Q: HOW TO INSTALL THIS DAMPER MODEL.
Asked by 16 years ago
Add your answer
Verified Reply- PexSupply StaffThis 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