Research Products 6110 Round Mechanical Bypass Damper

Product Description

The RESEARCH PRODUCTS 6110 is a round mechanical bypass damper designed to regulate airflow in forced-air HVAC systems. Bypass dampers relieve excess static pressure by redirecting supply air back to the return side of the system when zone dampers close off portions of the duct network. This prevents over-pressurization, reduces blower strain, and protects heat exchangers from low-airflow conditions. At 7 pounds, the 6110 is a solid, installation-ready unit suited for installation by licensed HVAC technicians in both new construction and retrofit zoning projects.

This bypass damper is used in residential and light commercial forced-air zoning systems where multiple zone dampers create variable static pressure conditions. It is typically installed in the supply plenum or a dedicated bypass duct connecting the supply trunk to the return air plenum. The mechanical design means it operates without an external actuator or control wiring, opening and closing in direct response to duct pressure differential. This makes it a straightforward solution for single-zone pressure relief in multi-zone systems.

Key Features

• Mechanical operation responds passively to duct static pressure with no actuator or control wiring required
• Round design fits standard round duct and plenum collar connections
• Relieves excess static pressure to protect blowers and heat exchangers in zoned systems
• Suitable for new construction and retrofit multi-zone HVAC installations
• Substantial construction at 7 pounds for durable in-duct service

Compatibility

Designed as an OEM-style bypass damper for use in residential and light commercial forced-air zoning systems requiring passive mechanical pressure relief in round duct configurations.

Installation Notes

Installation should be performed by a licensed HVAC technician following applicable mechanical codes. Shut down the air handler and de-energize the system at the disconnect before cutting into ductwork or plenum. The bypass duct connecting supply to return must be sized and routed to avoid short-circuiting conditioned air near the return intake. Seal all duct connections with approved mastic or foil tape per local code requirements.

Technical Specifications

• Weight: 7 pounds
• Damper Style: Round
• Operation Type: Mechanical Bypass

Standard Information

• Brand: RESEARCH PRODUCTS
• Manufacturer Part Number: 6110