Mitek 55ea06g 6 Inch Ceiling Radiation Damper 55 Series

Product Description

The MITEK 55ea06g is a 6-inch ceiling radiation damper designed to prevent the spread of fire through ceiling assemblies in HVAC duct systems. Part of the 55 Series, this damper features an Easy Access Link attachment, making it suitable for 5-inch diameter and larger installations. The unit is constructed from 22-gauge galvanized steel using a one-piece rollformed frame for durability and consistent fit. A standard 165 degrees F fusible link is included, with a 212 degrees F fusible link available as an option. UL Classified for use in non-combustible installations rated 3 hours or less, this damper meets the demands of code-compliant commercial and residential ceiling assemblies.

The 55ea06g is intended for ceiling radiation damper applications where a duct or air outlet penetrates a fire-rated ceiling assembly. The Easy Access Link design is standard on 5-inch diameter and larger units, while standard link attachment is used on 4-inch diameter units. For units with blade areas greater than 84 square inches, a ceramic thermal blanket is provided to ensure proper fire-rating performance. This damper is available in sizes ranging from 5 to 24 inches in the Easy Access Link configuration and 4 to 24 inches in the standard link configuration.

Key Features

• UL Classified for non-combustible installations rated 3 hours or less
• 22-gauge galvanized steel, one-piece rollformed frame construction
• Easy Access Link attachment for 5-inch diameter and larger units
• Standard 165 degrees F fusible link included; 212 degrees F fusible link available as an option
• Ceramic thermal blanket provided on units with blade areas greater than 84 square inches
• Available in 5 to 24 inch sizes in Easy Access Link configuration

Compatibility

Designed as an OEM-style replacement or new-installation ceiling radiation damper for use in UL Classified non-combustible ceiling assemblies rated 3 hours or less, as part of the MITEK 55 Series product line.

Installation Notes

Ceiling radiation dampers are installed by licensed HVAC or sheet metal contractors and must comply with applicable local building and fire codes, including NFPA 90A requirements. Always shut down the HVAC system and de-energize associated electrical components before beginning installation or service. Verify the ceiling assembly fire-resistance rating and confirm the damper size and link temperature rating match the design specifications before installation. Do not substitute fusible link ratings without reviewing the project engineering documents and applicable code authority requirements.

Technical Specifications

• Size: 6 inches
• Series: 55 Series
• Frame Material: 22-gauge galvanized steel
• Frame Construction: One-piece rollformed
• Link Type: Easy Access Link
• Fusible Link Temperature (Standard): 165 degrees F
• Fusible Link Temperature (Optional): 212 degrees F
• UL Classification: Non-combustible installations, 3-hour rating or less
• Ceramic Thermal Blanket: Included on units with blade area greater than 84 square inches

Standard Information

• Brand: MITEK
• Manufacturer Part Number: 55ea06g