Rollover image above to zoom

24 inch x 24 inch Square Parallel Blade Damper (Honeywell)

Price: $431.84
Excl. Shipping
(See Product Details Below for Manufacturers Part Numbers)
Discount Shipping

Our volume UPS discounts are passed-on directly to you for the lowest possible shipping rates.

24 inch x 24 inch Square Parallel Blade Damper (Honeywell)


The ZD is a power close, and spring open damper. It has a 24-volt, spring-return, power-closed damper 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 TotalZone
• Systems and other electronic mini-zone damper systems.


• 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).

Product Specifications

Description 24 inch x 24 inch Square Parallel Blade Damper
Application Parallel Blade Damper
Size (inch) 24 inch x 24 inch
Shape Square
Motor Mount Side
Motor Type power closed, spring open
Motor Timing 30 seconds energized
Motor Timing 10 seconds de-energized
Wires to Motor 2 wires
Other Motor Information M874D
Electrical Connections 2 wires
Voltage 24 Vac
Frequency 60 Hz
Used With Honeywell zoning systems

Replaces Part Numbers:

ZD-24X24 CARZD24X24

I called trying to find out what happened to the rest of my order and was surprised to hear a warm and kind voice willing to do whatever it takes to find answers and follow through with her promise. Amanda is an asset worth holding on to and a credit to your company. She was very professional, helpful and courteous while assisting me with my order. I would most definitely assign her an A+ in customer service."
Donald "Brad" Thomas

I would like to thank you for your hard work in getting us our part in a timely fashion. You were very helpful and you understood the severity of the situation and did a wonderful job in getting the part to us. Thanks again and please share this with your boss! You were outstanding!"
Todd Mills

Share This:
Have Questions?
Our parts Experts are happy to help!

Available Monday to Friday 10am - 6:30pm EST
Email our Parts Experts
Accredited BusinessGo
Amanda I want to thank you, the blower fan work perfectly. Thank you so very much."
Bill K Roberts
Amanda, Thank you very much again, I have been looking for this part for about two weeks and getting very frustrated in the process of the search, you were very helpful!!"
Ken Holm
Why Buy From Us?
110% Lowest Price Guarantee
Over 500,000 Parts in Stock
Same Day Shipping on Orders Received Before 3pm EST (Mon-Fri)
Nationwide Distribution Centers for Fast Delivery
Choose from UPS Next-Day, 2-Day, 3-Day and Ground Service
We Supply Retail and Wholesale
Order from us.
Risk Free, with
Our Triple Guarantee
Guarantee 1
No hassle, 30-day returns policy
Guarantee 2
110% Lowest price guarantee
Guarantee 3
90-day warranty
Sign up for Special Offers Directly from | 1042 N. Mountain Ave., #B546 | Upland, CA 91786
© 2003-2018 All Rights Reserved.