RE – 428DU – S

The RE-428DU-S is an addressable duct smoke detector designed for HVAC systems, specifically to detect smoke inside air ducts and trigger alarms in case of a fire. It is part of Ravel’s addressable fire alarm system, which ensures real-time monitoring and precise location detection of fire or smoke incidents.

How It Works:

This detector is installed in the air ducts of commercial, industrial, and residential buildings to monitor air quality. It uses a sampling tube to pull in air from the duct, analyzing it for smoke particles. If smoke is detected, the device sends a signal to the fire alarm control panel (FACP), alerting the system to take necessary action, such as shutting down HVAC systems to prevent smoke spread.

Key Features & Benefits:

1. Single Sampling Tube System:

• Uses a Venturi tube design to pull air into the detector for analysis.
• Ensures high efficiency in smoke detection while reducing false alarms.
• Addressable Technology:

1. • Each detector has a unique address in the fire alarm system, making it easy to identify the exact location of smoke within a building.

2. Automatic Sensitivity Adjustment:

   • The intelligent circuit inside the detector adjusts its sensitivity based on environmental conditions, ensuring accurate detection while minimizing false alarms.

3. Integration with Fire Alarm Systems:

   • Works seamlessly with Ravel’s addressable fire alarm control panels.
   • Supports alarm, trouble, and supervisory signals for enhanced monitoring.

4. Easy Installation & Maintenance:

   • Can be mounted in any orientation within the duct.
   • Designed for quick access and servicing, reducing downtime.

5. HVAC System Compatibility:

   • Can be integrated with building automation systems to trigger fan shutdown and airflow control in case of smoke detection.

Why It’s Important:

Duct smoke detectors like the RE-428DU-S are critical for early fire detection, especially in large buildings where fire can spread through ventilation systems. By identifying smoke at an early stage, these detectors help prevent fire hazards, minimize property damage, and ensure occupant safety.