Gamewell FCI PSD7155D 4-Wire Photoelectric Duct Smoke Detector

The Gamewell FCI PSD7155D is a 4-wire photoelectric duct smoke detector head for DH-60 Series air duct detector housings. It responds to both flaming and smoldering fire conditions, supports magnet-based functional testing, and provides smoke detection for air handling duct applications when paired with the proper duct housing. Key Specifications: Type: Photoelectric duct smoke detector head Core Function(s): Detects smoke and combustion particles in duct air sampling applications Loop/Protocol: Conventional 4-wire duct detector application with DH-60 Series housing Power: Detector head operates from 10.2 to 36.8 VDC; DH-60 housing supports 24 VAC, 24 VDC, 120 VAC, or 240 VAC Indicators/UI: Flashing LED for visual supervision; visible through the DH-60 housing inspection window Sensitivity: 3.25 percent per ft nominal Air Velocity: DH-60 housing supports 300 to 4000 FPM duct airflow Testing: Local magnet test; remote test/reset available with compatible accessories Compatible Accessories: DH-60 - 4-wire duct detector housing RAI-4 - Remote alarm indicator RCM-505 - Remote alarm indicator with test/reset keyswitch RCM-606 - Remote power/alarm indicator with test/reset keyswitch System Compatibility: DH-60 Series 4-wire duct detector housings and compatible conventional 4-wire fire alarm control circuits Alternate Part Numbers: PSD-7155D, 112-30080