DMPR-RS306 Johnson Controls Damper Control Accessory

Overview

The Johnson Controls DMPR-RS306 is a heat-activated fusible link designed as a critical safety accessory for damper control systems in HVAC installations. Serving as a reliable passive failsafe device, it holds fire and smoke damper blades in the open position during normal operation. In the event of a fire, the link automatically activates without requiring electrical power or human intervention, causing the damper to close tightly to seal off ductwork and limit the spread of fire and smoke.

Features

• Automatic Failsafe Activation: Operates entirely on physical principles, melting or breaking under high temperatures to initiate immediate damper closure.
• Bi-Metal Construction: Comprised of durable brass components securely bonded together by a heat-sensitive solder alloy designed to withstand operational stresses.
• Style A Versatility: Engineered in an A-style configuration, providing excellent adaptation for standard fire protection systems in commercial buildings.
• Mechanical Reliability: Provides a completely power-independent safety mechanism that remains fully operational even during total system power losses.

Specifications

• Brand: Johnson Controls
• Model/Part Number: DMPR-RS306
• Component Type: Fusible Link (Style A)
• Activation Temperature: 212°F (100°C)
• Application Design: Fire and smoke damper control systems
• Weight: 1.0 lb

Applications

• Fire and Smoke Dampers: Integrates directly into commercial ventilation ductwork to trigger automatic damper closure when local temperatures reach critical thresholds.
• HVAC Safety Control: Installed across building automation networks to partition specific zones and contain hazards at their origin.
• High-Ambient Environments: Well-suited for deployment in facility spaces with elevated normal temperatures, such as industrial kitchens or boiler rooms, preventing false alarms while ensuring high-heat protection.