Io Hvac Controls ZD-1814-BM Zone Damper 18x14 Bottom Mount

Product Description

The IO HVAC CONTROLS ZD-1814-BM is a modulating commercial zone damper designed to regulate airflow in multi-zone HVAC ductwork systems. Measuring 18 inches wide by 14 inches tall with a 6-inch depth, this bottom-mount damper provides precise, variable airflow control rather than simple open/close operation. At 10.5 pounds, it is built for commercial-grade installation in larger duct sections where accurate zone balancing is required. Licensed HVAC technicians and sheet metal contractors are the primary installers for this type of component.

This damper is suited for commercial and light-industrial HVAC zoning applications where modulating control is needed to maintain differential pressure and temperature balance across multiple zones. The bottom-mount configuration is selected when duct access, actuator clearance, or building layout requires actuator placement on the bottom face of the duct. It fits into variable air volume (VAV) and multi-zone forced-air systems handling larger duct openings in the 18 x 14 inch class.

Key Features

• Modulating operation for precise, variable airflow control across commercial zones
• Bottom-mount actuator configuration for installations with limited side or top clearance
• 18 x 14 inch duct opening accommodates larger commercial airflow volumes
• 6-inch depth fits standard commercial duct section spacing
• Commercial-grade construction rated for the demands of multi-zone systems

Compatibility

Designed as an OEM-style modulating zone damper for commercial multi-zone forced-air HVAC systems requiring an 18 x 14 inch bottom-mount damper assembly.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with local mechanical codes and SMACNA ductwork standards. Shut down the air handling unit and de-energize all associated controls before beginning installation. Verify actuator low-voltage control wiring connections against the zone controller documentation before restoring power. Confirm damper blade orientation and airflow direction before final fastening to the duct section.