Bosch F220-135F Heat Detector

Bosch F220-135F Heat Detector is an electronic fixed temperature heat detector that initiates an alarm when the ambient temperature reaches +135°F (+57°C). The Bosch F220-135F detectors use low-current electronic circuitry, so they can connect to 12 VDC nominal or 24 VDC nominal power source circuits. When mounted on the appropriate F220‑B6 Series Mounting Base, the F220 Heat Detectors provide general property protection from fire.

When detector heads are correctly installed in any of the F220‑B6 bases, the control panel initiates a trouble signal if a detector is removed from its base. Besides, a mechanical tamper lock comes with each base to inhibit unauthorized head removal.

To verify the detector has power and the heat detection circuitry functions, a dual-color LED indicator flashes green every 8 sec when operating normally. It flashes once every 4 sec when a trouble condition exists. The LED latches on red if an alarm occurs, allowing the user to easily verify individual detector alarms. Clear the alarm condition by interrupting power to the detector.

Features / Specifications

• Two-wire or four-wire bases
• 50 ft (15.2 m) maximum spacing between detectors
• Visible identification of model: gray ring
• Tamper detection
• Dual-color LED
• Relative Humidity: 0% to 95% non-condensing
• Temperature: +32°F to +100°F (0°C to +38°C)
• Dimensions: 6.75 in. x 2.25 in. (17.1 cm x 6.4 cm)