Fire Alarm Systems | FAD-325-DH Analog Duct Smoke Detector Replacement Head
FAD-325-DH Analog Duct Smoke Detector
Replacement Head
www.boschsecurity.com
The FAD 325 DH Analog Duct Smoke Detector Replacement is a replacement detector for the FAD 325 Duct Smoke Detector Housing. It detects smoke particles which typically result from wood, paper, and fabric combustion. Use it in heating, ventilation, and air conditioning (HVAC) systems.
It uses a LED and photodiode to measure particulate levels in its detection chamber. These measurements are transmitted via the DCP protocol to the fire panel.
Functions
Fire Panel Connections
The detector is controlled by a microprocessor and communicates with the fire panel (both power and data) over a two wire polling circuit.
Sensitivity levels
The system allows for adjusting sensitivity levels by the detector over a range of 0.88 %/ft to 2.75 %/ft (2.9%/m to 9%/m) obscuration. The unique detection chamber design prevents external light from affecting the photodiode.
uSmoke density range of 0.88 %/ft to 2.75 %/ft (2.9%/m to 9%/m)
uAdjustable threshold smoke level (determined by panel)
uProvides automatic compensation values in case of detector contamination
uReplacement detector for FAD 325 Analog Duct Smoke Detector Housing
uEasy detector removal for cleaning and servicing
Status Display
The detector has two LEDs that flash every time the device is polled and can be switched on steady when the module goes into active condition.
Certifications and approvals
Region |
Certification |
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USA |
UL |
UROX: Smoke-automatic Fire Detectors |
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(ANSI/UL 268) |
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CSFM |
see our website |
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Installation/configuration notes
Compatible Products
The following products are compatible with the FAD 325 DH Photoelectric Smoke Detector Replacement:
Category |
Product ID |
Product Description |
Fire Panels |
FPA 1000 |
Analog Addressable Fire |
|
Family |
Panels |
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