Io Hvac Controls LD-2808-BM Rectangular Zone Damper

Product Description

The IO HVAC CONTROLS LD-2808-BM is a rectangular two-position zone damper designed for duct zoning systems in forced-air HVAC applications. Sized at 28 inches by 8 inches, it uses a 3-wire actuator with an integrated LED indicator to signal open and closed positions at a glance. The bottom-mount actuator configuration suits installations where access from the underside of the duct is preferred. Licensed HVAC technicians install this damper as part of a zoned residential or light commercial system, controlling airflow to individual zones based on thermostat demand.

This damper fits rectangular duct runs in residential and light commercial forced-air systems where zoning control is required. The two-position operation - fully open or fully closed - makes it appropriate for standard zone control boards that switch the actuator between 24-volt power states. The LED indicator provides a visible status check during commissioning and service calls without requiring additional test equipment. The bottom-mount actuator position is selected when duct layout or clearance restricts side or top access.

Key Features

• 28 inch by 8 inch rectangular duct size for direct inline installation
• Two-position operation: fully open or fully closed for standard zone control
• 3-wire actuator wiring compatible with common zone control board outputs
• Integrated LED indicator displays damper position for fast field verification
• Bottom-mount actuator placement accommodates restricted duct clearance installations

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular duct zoning systems using 3-wire actuator control boards in residential and light commercial forced-air HVAC applications.

Installation Notes

Installation is performed by a licensed HVAC technician following local mechanical codes and the zone control system manufacturer's wiring diagram. Power down the air handler and de-energize the zone control board before making any wiring connections. The damper is mounted inline in the rectangular duct run and secured to the duct using sheet metal screws; verify the actuator orientation matches the bottom-mount requirement before final fastening. Confirm LED indicator function during system commissioning to validate proper actuator travel and zone board signal.