Standalone Duct Smoke Detector, HVAC Relay
The Simplex 4098-9687 Stand-Alone Duct Smoke Detector Housing is designed to monitor air moving through HVAC ducts for the presence of smoke. The unit operates independently of a fire alarm control panel and includes a factory-installed TrueAlarm photoelectric smoke detector mounted inside the housing.
Air sampling tubes installed through the duct draw air into the detector housing where the integrated sensor analyzes the airflow for smoke particles. If smoke is detected, the unit activates its internal Form-C relay output, triggers an alarm indication, and activates the associated remote control station.
The housing includes a clear polycarbonate cover that allows visual inspection of the detector and status LED without opening the enclosure. Test ports enable functional smoke testing while the cover remains in place. A built-in magnetic test feature allows technicians to initiate an alarm and check detector status using an external magnet.
For system operation, the detector requires the Simplex 4098-9842 remote control station, which provides power indication, alarm indication, a local tone-alert sounder, silence control, and a keyed test/reset switch. Sampling tubes are selected separately based on duct width to ensure proper airflow monitoring across the duct cross-section.
The Simplex 4098-9687 Stand-Alone Duct Smoke Detector Housing is designed to monitor air moving through HVAC ducts for the presence of smoke. The unit operates independently of a fire alarm control panel and includes a factory-installed TrueAlarm photoelectric smoke detector mounted inside the housing.
Air sampling tubes installed through the duct draw air into the detector housing where the integrated sensor analyzes the airflow for smoke particles. If smoke is detected, the unit activates its internal Form-C relay output, triggers an alarm indication, and activates the associated remote control station.
The housing includes a clear polycarbonate cover that allows visual inspection of the detector and status LED without opening the enclosure. Test ports enable functional smoke testing while the cover remains in place. A built-in magnetic test feature allows technicians to initiate an alarm and check detector status using an external magnet.
For system operation, the detector requires the Simplex 4098-9842 remote control station, which provides power indication, alarm indication, a local tone-alert sounder, silence control, and a keyed test/reset switch. Sampling tubes are selected separately based on duct width to ensure proper airflow monitoring across the duct cross-section.
| Weight | 1.4 lbs |
|---|---|
| Dimensions | 6.75 × 11.375 × 3.375 in |
| Manufacturer | Johnson Controls |
| Brand | Simplex |
| Unit of Measurement | EA (Each) |
| Condition | New |
| Type | Duct Detector |
| Construction | ABS, Polycarbonate |
| Output | Relay |
| Detection Method | Photoelectric |
| Voltage | 120 VAC, 24 VAC, 24 VDC, Selectable |
| Voltage Range | 102 – 132 VAC, 20.4 – 26.4 VAC, 20.4 – 32 VDC, Selectable |
| Production Status | Discontinued |
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| Weight | 1.4 lbs |
|---|---|
| Dimensions | 6.75 × 11.375 × 3.375 in |
| Manufacturer | Johnson Controls |
| Brand | Simplex |
| Unit of Measurement | EA (Each) |
| Condition | New |
| Type | Duct Detector |
| Construction | ABS, Polycarbonate |
| Output | Relay |
| Detection Method | Photoelectric |
| Voltage | 120 VAC, 24 VAC, 24 VDC, Selectable |
| Voltage Range | 102 – 132 VAC, 20.4 – 26.4 VAC, 20.4 – 32 VDC, Selectable |
| Production Status | Discontinued |
• Stand-alone HVAC duct smoke detector housing
• Includes factory-installed TrueAlarm photoelectric detector
• Clear cover for visual inspection of detector status
• Magnetic functional test for diagnostics and maintenance
• Built-in Form-C relay output for alarm signaling
• Compatible with remote control station for local alarm indication
• 4098-9687 duct detector housing
• Factory-installed 4098-9601 TrueAlarm photoelectric detector
• Exhaust tube
• Gaskets and mounting hardware
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