Edwards Signaling SD-PH Duct Detector Protective Housing for HVAC Fire Alarm Systems

Edwards Signaling · Fire & Life Safety

Description  The Edwards Signaling SD-PH is a duct detector protective housing designed to support smoke detection systems in HVAC duct applications. Manufactured by Edwards Signaling, it provides environmental protection for compatible duct smoke detectors in high humidity and variable airflow conditions. The Edwards SD-PH ensures reliable detector performance by maintaining stable operation in demanding air handling environments.     Technical Specifications  Condition New/Never Used Surplus Brand Edwards Signaling Category Fire Alarm Accessories Part Number SD-PH Subcategory Duct Detector Protective Housing Type Protective Housing Enclosure Application HVAC Duct Smoke Detection Compatible Device SuperDuct Smoke Detector Systems Operating Voltage 24 VAC / 24 VDC / 120 VAC / 230 VAC Air Velocity Range 100 to 4,000 ft/min Operating Temperature Range -4°F to 158°F Connectivity RJ-45 Wiring Interface Environmental Use High humidity / HVAC duct environments Function Detector protection and environmental isolation Weight 3.2 lb (approx.)     Information About SD-PH The SD-PH is part of Edwards Signaling duct detection accessory solutions engineered to protect SuperDuct smoke detectors in ventilation systems. It is constructed as a rugged protective enclosure suitable for installation in HVAC ductwork exposed to moisture, temperature variation, and continuous airflow. The unit supports multiple operating voltage configurations, including 24 VAC, 24 VDC, 120 VAC, and 230 VAC, making it compatible with a wide range of fire alarm and building control systems. It is designed for use in air velocities from 100 ft/min to 4,000 ft/min, ensuring stable detector operation in both low and high airflow duct environments. RJ-45 wiring support simplifies integration with modern fire alarm communication and control networks. Key Features: Duct Detector Protection: Shields compatible smoke detectors from dust, humidity, and airflow stress High Humidity Suitability: Designed for reliable operation in moisture-prone HVAC environments Wide Air Velocity Range: Supports stable performance from 100 to 4,000 ft/min duct airflow Multi-Voltage Compatibility: Accepts 24 VAC, 24 VDC, 120 VAC, and 230 VAC systems HVAC Integration Design: Optimized for SuperDuct detector installation in air handling units Extended Temperature Range: Operates reliably from -4°F to 158°F RJ-45 Connectivity: Simplifies wiring and system integration in fire alarm networks The SD-PH delivers the reliability and precision required for duct smoke detection protection in HVAC and fire safety systems.

Brand: Edwards Signaling · Category: Fire & Life Safety

Key features

• Duct Detector Protection: Shields compatible smoke detectors from dust, humidity, and airflow stress
• High Humidity Suitability: Designed for reliable operation in moisture-prone HVAC environments
• Wide Air Velocity Range: Supports stable performance from 100 to 4,000 ft/min duct airflow
• Multi-Voltage Compatibility: Accepts 24 VAC, 24 VDC, 120 VAC, and 230 VAC systems
• HVAC Integration Design: Optimized for SuperDuct detector installation in air handling units
• Extended Temperature Range: Operates reliably from -4°F to 158°F
• RJ-45 Connectivity: Simplifies wiring and system integration in fire alarm networks

Specifications

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