Io Hvac Controls LD-08 Round Zone Damper 8 Inch

Product Description

The IO HVAC CONTROLS LD-08 is an 8-inch round, 2-position zone damper designed for zoned HVAC duct systems. It ships with a 3-wire actuator and an integrated LED indicator, giving technicians a clear visual confirmation of damper position without removing covers or using a meter. The damper opens and closes fully on command from a zone control panel, directing conditioned air to active zones and blocking flow to inactive ones. Licensed HVAC technicians install this unit as part of residential or light-commercial zoning setups where independent room or zone temperature control is required.

The LD-08 fits into round duct runs with an 8-inch diameter. It is used in forced-air zoning applications where a zone control board sends a signal to open or close the damper based on thermostat demand. Typical installations include residential multi-zone systems, additions tied into existing ductwork, and commercial light-duty variable-volume applications. The 3-wire actuator configuration is standard for 2-position zone damper wiring on most zone control panels.

Key Features

• 8-inch round damper body sized for standard round duct
• 2-position operation: fully open or fully closed on zone signal
• 3-wire actuator included for compatibility with standard zone control panel wiring
• Integrated LED indicator provides instant visual confirmation of damper position
• Self-contained assembly reduces installation time on new and retrofit zoning projects

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for 8-inch round duct in residential and light-commercial forced-air zoning systems.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut down the air handler and de-energize the zone control panel before wiring the actuator. Secure the damper body into the duct run before making electrical connections, and verify damper blade movement and LED function after restoring power. Follow applicable mechanical and electrical codes for low-voltage wiring in your jurisdiction.