Io Hvac Controls D-Z1-2218 Zone Damper Assembly 22x18

Product Description

The IO HVAC CONTROLS D-Z1-2218 is a two-position zone damper assembly designed for Zone 1 applications in residential and light commercial HVAC zoning systems. The damper measures 22 x 18 inches and operates in two discrete positions: fully open or fully closed. This type of motorized damper assembly controls airflow distribution across multiple zones, directing conditioned air only where it is needed. It is installed by licensed HVAC technicians as part of a zoned forced-air system and works in conjunction with a zone control panel and thermostat. The assembly ships at 14 pounds and has a packaged footprint of 26 x 29 x 8 inches.

This damper assembly is suited for Zone 1 duct applications in residential and light commercial forced-air systems. Two-position zone dampers are typically installed in main trunk lines or large branch runs where high airflow volume requires a full-size rectangular damper. The 22 x 18 inch face size accommodates large duct openings common in commercial-grade or whole-home zoning installations. It is designed to receive a low-voltage signal from a compatible zone control board to open or close on demand.

Key Features

• Two-position operation: fully open or fully closed for straightforward zone airflow control
• 22 x 18 inch face size fits large rectangular duct applications
• Designated Zone 1 damper assembly for use with compatible zone control panels
• 14-pound assembly weight suitable for permanent duct installation
• Packaged dimensions of 26 x 29 x 8 inches support straightforward jobsite handling

Compatibility

Designed as an OEM-style replacement or new-installation two-position zone damper for rectangular duct zoning systems requiring a 22 x 18 inch damper in the Zone 1 position.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with zoned forced-air systems. Shut down the air handler and de-energize the zone control panel before mounting or wiring the damper assembly. Low-voltage wiring connections to the zone control board should comply with NEC guidelines for Class 2 circuits. Confirm duct dimensions match the 22 x 18 inch damper face before cutting into existing ductwork.