Research Products 6813 Rectangular Zone Damper 24V

Product Description

The RESEARCH PRODUCTS 6813 is a rectangular zone damper designed for forced-air HVAC zoning systems. It features an aluminum frame and blade construction with a power-closed, spring-open motor that operates at 24 volts AC at 60 Hz, drawing 6 watts and 12 volt-amps. The 2-wire electrical connection simplifies wiring to zone control panels and thermostats. Bottom mounting orientation suits typical duct branch applications. The damper is rated for a maximum static pressure of 1 inch water column (in-WC), making it appropriate for residential and light commercial zoning installations. A licensed HVAC technician or sheet metal contractor typically handles procurement and installation.

This damper is used in ducted forced-air systems where independent temperature control is required across multiple zones. The spring-open fail-safe design ensures airflow is restored if power is lost, which is a common requirement in residential zoning layouts. Bottom-mount configuration fits standard rectangular duct branch takeoffs. The 2-wire connection interfaces directly with most 24-volt zone control boards, reducing wiring complexity during new construction or retrofit zoning projects.

Key Features

• Power-closed, spring-open motor provides fail-safe airflow on power loss
• 24 VAC at 60 Hz motor — compatible with standard low-voltage HVAC control circuits
• Aluminum frame and blade construction for lightweight, corrosion-resistant performance
• 2-wire electrical connection simplifies zone board wiring
• Bottom mounting orientation for standard rectangular duct branch installations
• Rated to 1 in-WC maximum static pressure

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for residential and light commercial forced-air zoning systems using 24-volt control circuits and rectangular duct configurations.

Installation Notes

Installation should be performed by a qualified HVAC technician or licensed sheet metal contractor in accordance with local mechanical codes and NFPA 90A/90B guidelines. Shut down the air handler and de-energize the 24-volt control circuit before wiring or mounting the damper. Verify duct dimensions and static pressure conditions do not exceed the 1 in-WC rating before commissioning. Seal the damper flange to the duct collar with approved foil tape or mastic to prevent air bypass.