DMPR-RS309 Johnson Controls Damper Control Accessory

Overview

The Johnson Controls DMPR-RS309 is a high-quality fusible link designed for fire and smoke damper assemblies. It serves as a critical safety component within heating, ventilation, and air conditioning (HVAC) ductwork to prevent the spread of fire and smoke between building compartments. The link is engineered to hold the damper blades in an open position during normal operation, allowing for continuous airflow, and automatically releases to shut the damper when ambient temperatures exceed a safe threshold.

Features

• Thermal Response Mechanism: Features a specialized fusible element designed to melt at a precise high temperature, allowing the damper blades to release and close mechanically.
• Fire Safety Compliance: Assists fire and smoke dampers in effectively sealing off fire zones in cooperation with fire-resistance-rated walls and floors.
• Robust Construction: Built with durable materials to withstand typical operational stresses and environmental factors within commercial HVAC systems.
• System Integration: Integrates directly into compatible Johnson Controls damper control assemblies to hold back the tension tabs of the damper mechanism.

Specifications

• Temperature Rating: 212 degrees Fahrenheit (100 degrees Celsius)
• Style: J-Style link configuration
• Series Compatibility: Housed under Johnson Controls Damper & Actuator Accessories (frequently used with fire damper systems like the FOVHN series)

Applications

• Commercial HVAC Systems: Installed directly inside ventilation ductwork to regulate automatic emergency closures.
• Fire and Smoke Dampers: Ideal for replacement or initial setup in fire dampers passing through fire-rated partitions.
• Static and Dynamic Fire Barriers: Used in passive building safety setups to prevent flames from traveling to other sections of a structure.