Io Hvac Controls ZD-3624-BM Zone Damper 36x24 Bottom Mount

Product Description

The IO HVAC CONTROLS ZD-3624-BM is a modulating commercial zone damper designed for variable airflow control in commercial HVAC zoning systems. Sized at 36 by 24 inches, this bottom-mount damper provides precise, proportional airflow regulation rather than simple open/close operation, making it suited for variable air volume (VAV) and multi-zone applications where fine control over conditioned air delivery is required. It ships at 15 pounds and carries overall dimensions of 38 inches wide, 24 inches tall, and 7 inches deep. Licensed HVAC technicians and commercial mechanical contractors are the primary installers for this type of equipment.

This damper is intended for commercial HVAC installations where zoning control and modulating airflow management are required. The bottom-mount configuration suits applications where actuator access from the bottom of the duct or plenum is the preferred or required installation orientation. Typical use cases include multi-zone rooftop unit systems, air handling unit distribution networks, and commercial building automation environments where the damper integrates with a zone controller or building management system.

Key Features

• Modulating operation allows proportional airflow control, not just fully open or fully closed positioning
• Bottom-mount actuator configuration for installations requiring bottom-access assembly
• Commercial-grade sizing at 36 by 24 inches for larger duct applications
• Overall footprint of 38 inches wide by 24 inches tall by 7 inches deep accommodates standard commercial duct framing
• Shipping weight of 15 pounds reflects robust commercial construction

Compatibility

Designed as an OEM-style modulating zone damper for commercial HVAC zoning systems requiring a 36 by 24 inch bottom-mount damper assembly.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with commercial zoning systems and local mechanical codes. Shut down and lock out the air handling unit or rooftop unit before beginning damper installation or wiring. Verify actuator control signal type and voltage range at the zone controller before connecting control wiring, and confirm the damper orientation matches the bottom-mount requirement before final mounting. Consult applicable local mechanical codes for ductwork penetration and damper installation requirements.