Io Hvac Controls HD-2618-BM Zone Damper 26x18 Inch

Product Description

The IO HVAC CONTROLS HD-2618-BM is a two-position rectangular zone damper sized at 26 x 18 inches, built for ducted HVAC zoning systems. It controls airflow to individual zones by opening and closing on command from a zone control board or thermostat. The unit ships with a bottom-mount, 2-wire actuator that simplifies wiring and repositioning. At 12 pounds, it is a substantial assembly suited for larger residential or light commercial duct runs where precise zone isolation is required. Licensed HVAC technicians typically handle installation as part of a multi-zone system retrofit or new construction air distribution layout.

This damper is intended for rectangular duct applications requiring a 26 x 18 inch opening. Two-position operation means the blade is either fully open or fully closed, making it appropriate for standard zone control setups where modulating airflow is not needed. The bottom-mount actuator configuration is useful in installations where side or top access is restricted, giving the technician more flexibility in tight duct chases or air handler closets. It fits into residential multi-zone systems and light commercial applications with compatible zoning control boards.

Key Features

• Two-position operation: fully open or fully closed for straightforward zone control
• 26 x 18 inch rectangular form factor fits larger residential and light commercial duct runs
• Bottom-mount actuator placement accommodates restricted-access installation environments
• 2-wire actuator wiring reduces complexity during installation and service
• 12-pound assembly provides a robust, rigid fit in the duct opening

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular ducted HVAC zoning systems requiring a two-position, 26 x 18 inch damper with a bottom-mount actuator.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with zoning system wiring and duct fabrication practices. Power down the zone control board and disconnect the thermostat circuit before connecting actuator wiring. Confirm duct framing dimensions match the damper before fastening to avoid air bypass around the blade frame. Consult the zoning system manufacturer wiring diagram to verify 2-wire actuator compatibility with the control board before energizing the system.