Io Hvac Controls ld-2820 Zone Damper 28x20 in 2 Position

Product Description

The IO HVAC CONTROLS ld-2820 is a rectangular two-position zone damper designed for residential HVAC zoning systems. Measuring 28 inches by 20 inches, it fits larger duct openings where airflow control between zones is required. The damper operates on a three-wire actuator and includes an LED indicator, giving technicians a quick visual confirmation of damper position during commissioning and service. Licensed HVAC technicians install this damper as part of a zone control system, typically paired with a zone control board and individual thermostats.

This damper is suited for residential forced-air systems where multiple zones require independent temperature control. Its rectangular form factor matches standard rectangular duct construction common in residential applications. The 28-inch by 20-inch opening size accommodates main trunk or large branch duct runs. The two-position operation means the damper moves fully open or fully closed based on a call for heating or cooling from the zone controller.

Key Features

• Rectangular damper sized at 28 inches by 20 inches for large duct openings
• Two-position operation: fully open or fully closed for reliable zone control
• Three-wire actuator for straightforward wiring to standard zone control boards
• Onboard LED indicator provides visual confirmation of damper position
• Designed for residential HVAC zoning applications

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for residential forced-air HVAC zoning systems requiring a rectangular two-position damper with a three-wire actuator.

Installation Notes

Installation should be performed by a licensed HVAC technician. Power down the air handler and zone control board before installing or wiring the damper. Secure the damper to the duct using sheet metal screws and connect the three-wire actuator leads to the corresponding terminals on the zone control board per the board manufacturer's wiring diagram. Verify LED status after restoring power to confirm proper damper operation before sealing ductwork.

Technical Specifications

• Product Type: Damper
• Shape: Rectangular
• Size: 28 inches x 20 inches
• Actuator Type: 3 Wire
• Position Type: 2 Position
• Application: Residential

Standard Information

• Brand: IO HVAC CONTROLS
• Manufacturer Part Number: ld-2820