Io Hvac Controls HD-0808-PO Zone Damper 8x8 Powered Open

Product Description

The IO HVAC CONTROLS HD-0808-PO is a two-position zone damper designed for powered-open operation in forced-air HVAC zoning systems. It measures 8 inches wide by 8 inches high with a 6-inch depth and weighs 5 pounds. The damper uses an actuator to drive the blade to the fully open position under power, then relies on a spring return to close when power is removed. This fail-closed behavior is a standard and preferred configuration in residential and light commercial zoning applications. Licensed HVAC technicians install this component as part of a multi-zone duct system controlled by a zone control board.

This damper is suited for rectangular duct runs in residential and light commercial forced-air systems where independent zone control is required. It fits into an 8-by-8-inch duct opening and is typically installed in branch ducts feeding individual zones. The powered-open, spring-return design integrates with low-voltage zone control panels that energize the actuator to open the zone on a call for heating or cooling, then de-energize to close when the zone is satisfied.

Key Features

• Powered-open, spring-return-to-close operation for fail-safe zone isolation
• 8 x 8 inch duct opening size fits standard rectangular branch ducts
• Two-position control: fully open or fully closed, no modulating required
• Low-voltage actuator compatible with standard HVAC zone control panels
• Compact 6-inch depth accommodates tight duct installations

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for residential and light commercial forced-air zoning systems using standard low-voltage two-position zone control panels.

Installation Notes

Installation should be performed by a licensed HVAC technician following applicable mechanical codes. Shut down the air handler and disconnect power to the zone control panel before installing or wiring the damper. Secure the damper to the duct using sheet metal screws and connect the actuator wiring to the zone control board per the panel manufacturer's wiring diagram. Verify the damper cycles fully open and fully closed before restoring system power and commissioning the zone.