Io Hvac Controls zd-20 Modulating Zone Damper 20 Inches

Product Description

The IO HVAC CONTROLS zd-20 is a 20-inch modulating commercial zone damper designed to regulate airflow in commercial HVAC zoning systems. Modulating dampers adjust blade position across a continuous range rather than operating as simple open-close devices, allowing precise airflow control to individual zones. This makes the zd-20 suitable for variable air volume and multi-zone applications where balanced distribution is required. Licensed HVAC technicians typically specify and install this type of damper as part of a commercial zoning control system.

The zd-20 is intended for commercial HVAC installations where zone-level airflow regulation is needed. It fits into ductwork as part of a broader zoning system and is sized at 20 inches to match common commercial trunk or branch duct configurations. This damper is appropriate for light commercial and commercial multi-zone systems where a zoning controller or building automation system modulates damper position based on zone demand.

Key Features

• 20-inch size fits standard commercial duct openings
• Modulating operation allows continuous blade positioning for precise airflow control
• Designed for commercial HVAC zoning applications
• Compatible with zoning controllers that provide a modulating control signal

Compatibility

Designed as an OEM-style modulating zone damper for commercial HVAC zoning systems requiring a 20-inch damper with modulating actuator control.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable mechanical codes. Shut down the air handling unit and de-energize all associated control wiring before beginning installation. Verify that the control signal type from the zone controller matches the actuator requirements of the damper before wiring. Ductwork connections should be sealed per local mechanical code requirements to prevent air leakage.

Technical Specifications

• Size: 20 inches
• Product Type: Damper
• Application: Commercial
• Operation: Modulating

Standard Information

• Brand: IO HVAC CONTROLS
• Manufacturer Part Number: zd-20