Io Hvac Controls D-Z1-1808 Zone Damper Assembly 18x8

Product Description

The IO HVAC CONTROLS D-Z1-1808 is an 18 x 8 inch two-position zone damper assembly designed for use in forced-air zoning systems. It controls airflow to a single zone by opening or closing on command from a zone control panel or thermostat. The unit measures 18 inches wide by 8 inches tall by 6 inches deep and weighs 6.5 pounds. Licensed HVAC technicians install this damper as part of a multi-zone residential or light commercial duct system where independent temperature control is required per zone.

This damper assembly is suited for rectangular duct applications in residential and light commercial forced-air systems. It operates in a two-position mode, meaning the blade moves fully open or fully closed rather than modulating to intermediate positions. Typical installations occur in main trunk lines or branch ducts where zone isolation is needed. The 18 x 8 inch duct size makes it a common fit for mid-capacity supply or return air runs.

Key Features

• Two-position operation for reliable open/closed zone airflow control
• 18 x 8 inch duct size fits standard rectangular trunk and branch duct configurations
• Compact 6-inch depth for installation in tight duct chases
• Zone One designation supports straightforward wiring to most zone control panels
• 6.5 pound assembly weight allows single-technician handling during installation

Compatibility

Designed as an OEM-style replacement or new-installation damper for rectangular forced-air duct systems requiring two-position zone control in residential and light commercial applications.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with forced-air zoning systems and applicable mechanical codes. Shut down the air handler and de-energize the zone control panel before cutting into existing ductwork or making low-voltage wiring connections. Seal all duct joints after installation per local mechanical code requirements. Verify actuator operation and damper blade travel before returning the system to service.