Resideo - Honeywell Home ZD20X10TZ Zone Control Damper

ZD20X10TZ Zone Control Damper from Resideo – Honeywell Home delivers precise airflow control for ducted systems. This rectangular, parallel-blade damper fits a 20" x 10" duct and uses extruded aluminum blades for durability and smooth operation.

Engineered for reliability in residential and light commercial HVAC, the damper features a 24 V AC motor at 60 Hz (8 VA), with a power-closed, spring-open design. It provides a 90° rotation and a quick 30-second power-open/10-second spring-return timing. The unit includes a mechanical visual position indicator and supports optional LED indication for status visibility. Wires connect to M1-Power, M6-Common, and M4 (optional) LED.

Key specs ensure dependable performance: a 40–140°F operating range, maximum static pressure of 1 in. WC, and a low pressure drop (0.0329 in. WC at 800 FPM). This parallel blade damper is designed for side-mount installation and is ideal for zoned airflow control across multiple zones.

• Duct Size: 20" x 10"
• Blade: Rectangular, parallel blade, extruded aluminum
• Operation: Fail-safe, normally open (powered to close; spring to open)
• Motor: 24 V AC, 60 Hz, 8 VA; torque 71 in-oz; rotation 90°
• Mounting & Wiring: Side motor mounting; M1-Power, M6-Common; M4 LED (optional)
• Indicators: Mechanical visual position indicator
• Performance: Temperature 40–140°F; Max static 1 in. WC; Pressure drop <0.0329 in. WC at 800 FPM
• Timing: Power Open 30 s; Spring Return 10 s