Honeywell zd8x26tzu Zone Control Damper 8x26 in Rectangular

Product Description

The HONEYWELL zd8x26tzu is a rectangular, parallel-blade zone control damper designed for circulating air management in residential HVAC zoning systems. Built with an extruded aluminum frame and blades, it operates on a power-closed, spring-open actuation cycle. The damper accepts 24-volt AC, 60 Hz power, produces 71 inch-ounce of motor torque, and cycles through a 30-second power-open and 10-second spring-return sequence. Leakage is rated at less than 1 percent at 0.5 inch WC, and maximum static pressure rating is 1 inch WC. A mechanical visual position indicator is included for quick field verification of blade status.

This damper is sized for an 8-inch by 26-inch duct opening and is used in residential applications where zone-by-zone airflow control is required. It integrates with TrueZone electronic zoning panels and other compatible electronic zoning systems. The bottom-mount motor configuration suits standard rectangular duct installations, and LED indication is included to assist during commissioning and troubleshooting. Typical applications include split-system and air-handler-based forced-air systems serving multiple zones.

Key Features

• Rectangular parallel-blade design with extruded aluminum frame and blades
• Power-closed, spring-open actuation for fail-safe duct opening on power loss
• 24-volt AC, 60 Hz motor with 71 inch-ounce torque rating
• Less than 1 percent leakage at 0.5 inch WC for tight shutoff performance
• Mechanical visual position indicator and LED indication included
• Compatible with TrueZone and other electronic zoning control systems

Compatibility

Designed for use with TrueZone and other electronic zoning systems in residential forced-air HVAC applications. Fits an 8-inch by 26-inch duct opening.

Installation Notes

Installation is performed by a licensed HVAC technician. Power down the air handler and zone control panel before wiring or mounting the damper. Connect motor terminals per the zone panel wiring diagram: M1 for power, M6 for common, and M4 as optional. Verify damper blade rotation and position indicator function before restoring system power.

Technical Specifications

• Opening Size: 8 inches x 26 inches
• Overall Width: 3.98 inches
• Overall Depth: 4.97 inches
• Overall Height: 4.72 inches
• Blade Type: Parallel blade, rectangular
• Actuation Type: Power closed, spring open
• Motor Voltage: 24 volts AC, 60 Hz
• Motor VA Rating: 8 volt-amps
• Motor Torque: 71 inch-ounces
• Motor Temperature Rating: 40 to 140 degrees F ambient
• Motor Angular Rotation: 90 degrees
• Motor Timing: 30 seconds power open, 10 seconds spring return
• Pressure Drop: 0.0329 inch WC at 800 feet per minute
• Maximum Static Pressure: 1 inch WC
• Leakage: Less than 1 percent at 0.5 inch WC
• Motor Mount Location: Bottom
• Frame and Blade Material: Extruded aluminum
• Indicators: LED indication and mechanical visual position indicator

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: zd8x26tzu