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The Honeywell ARD9TZU is a single blade automatic round damper designed for use in HVAC systems. This damper features a nine inch diameter and operates with 24 VAC power. Its spring-open and power-close design minimizes air leakage in heating, cooling, and ventilation applications.
- Constructed with galvanized steel for durability.
- Operates in a temperature range of forty to one hundred forty degrees Fahrenheit.
- Easy two-wire installation with a third wire option for LED indication.
Product Highlights
This damper is ideal for zoning systems and can be converted for use in fresh air intake applications.
Product Information
Standard Information
- Brand: Honeywell
- Power Requirement: 24 VAC
Features:
- Manual reset
- UL recognized
- CSA approved
- Uses 36T electrical ratings
Compatibility & Applications:
- Listed for Carrier HVAC equipment (model-specific compatibility is not provided in the listing details)
- Must only be used where the manufacturer specifies this exact part number: LH680534 (confirm by the unit's model/serial and the applicable service/parts documentation)
User Reviews & Q&A Summary:
- Reviews commonly describe:
- - Perfect/OEM fit and being the correct replacement part
- - Easy installation for those performing the repair
- - Keeping a spare flame sensor (and often an ignitor) on hand for quicker winter repairs (review-reported)
- - Positive feedback on shipping speed, packaging, and overall purchase experience
Maintenance & Troubleshooting:
- The provided sources do not include formal diagnostic procedures for this flame sensor
- Reviews reflect replacement as a practical service repair (OEM part swap), with users reporting successful replacement experiences and restored confidence in having the correct part on hand
Certifications & Compliance:
- Meets ARI 780/790 Standard
User Reviews & Q&A Summary:
- Common theme is "correct part" for the intended replacement, with users reporting it worked as expected after installation
- Review feedback frequently mentions straightforward installation for a direct replacement
- Value and fulfillment are recurring positives (good deal/price and fast shipping)
Product Highlights
4' Length
Specs
| Length (Feet): | 4' |
|---|---|
| Conduit Diameter: | 3/4" |
| Wire Size: | #8 THHN |
| Connectors: | Non-Metallic |
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Motors & Blowers
Thermostats
Breakers
Pilot & Ignitors

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