Resideo - Honeywell Home ZD18X12TZ Zone Control Damper

Zone Control Damper from Resideo—Honeywell Home ZD18X12TZ delivers precise, zone-based airflow management for residential or light commercial HVAC. This rectangular, parallel-blade damper fits an 18 x 12 inch duct and uses extruded aluminum blades for durable, low-friction operation.

Designed for reliability, it features spring-return, fail-safe operation that is normally open. The 24V AC motor delivers 71 in-oz torque and a 90-degree swing, with timing of 30 seconds to fully open and 10 seconds to spring back. Side mounting simplifies installation, while a wide temperature range (40–140 F) and a low pressure drop (<0.033 in WC at 800 fpm) keep system performance steady.

Key details:

• Rectangular, parallel-blade design for even airflow
• 18 x 12 inch duct size; extruded aluminum blade construction
• Spring-return, fail-safe, normally open operation
• 24 V AC motor, 71 in-oz torque, 90° rotation; 30s power-open / 10s spring-return
• Side motor mounting; max static pressure 1 in WC
• LED indication (optional) and mechanical visual position indicator
• Wiring to motor terminals: M1 (Power), M6 (Common), M4 (LED indication, optional)