Io Hvac Controls HD-2214-BM Zone Damper 22x14 Bottom Mount

Product Description

The IO HVAC CONTROLS HD-2214-BM is a rectangular two-position zone damper designed for forced-air zoning systems in residential and light commercial HVAC applications. The damper measures 22 inches wide by 14 inches tall and uses a 2-wire actuator with bottom-mount configuration, simplifying wiring runs and panel connections. Two-position operation means the blade moves fully open or fully closed in response to a zone call, making it compatible with standard zone control boards and thermostats. HVAC technicians install this damper directly into rectangular duct runs to control airflow to individual zones without complex modulating controls.

This damper is suited for rectangular duct installations where independent zone control is required. The bottom-mount actuator placement makes it practical in tight plenum spaces or where top-access is limited. The two-position, 2-wire design reduces wiring complexity compared to modulating or 3-wire spring-return dampers, making it a straightforward choice for new zoning installations and retrofit projects in residential and light commercial forced-air systems.

Key Features

• 22 inch by 14 inch rectangular duct opening fits standard rectangular trunk and branch duct sizes
• Two-position operation provides full-open and full-closed blade control for zone isolation
• 2-wire actuator reduces wiring complexity at the zone panel
• Bottom-mount actuator configuration allows installation in limited-clearance duct locations
• Compatible with standard low-voltage zone control boards and thermostats

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular duct zoning systems using two-position, 2-wire actuator control.

Installation Notes

Installation should be performed by a licensed HVAC technician. Power down the zone control panel and set the thermostat system switch to off before connecting or disconnecting the actuator wiring. Ensure the duct opening is sized to match the 22 inch by 14 inch damper frame before installation. Follow local mechanical codes and manufacturer wiring diagrams when connecting the 2-wire actuator to the zone control board.