Conventional Heat Detector; One Circuit, Rate-of-Rise/Fixed Temperature, 135°F (57°C)
The HD-600 Heat Detector is attractive, durable, and features combination rate-of-rise and fixed-temperature detectors. Heat detectors are available in 135°F (57°C) and 200°F (94°C) temperature ratings.
Rate-of-rise elements detect heat by quickly responding to rapid temperature increase. HD-600 detectors use the same reliable pneumatic rate-of-rise element used in former models, but offer added aesthetic appeal. The pneumatic rate-of-rise element responds to a rapid rise in temperature, approximately 15°F (8°C) per minute, by expansion of air within the sealed chamber faster than it can escape through a calibrated vent. The resultant increase in pressure depresses the diaphragm, causing the electrical contact to close the circuit. HD-600 rate-of-rise units have a wide spacing allowance of 50-foot (15.24-meter) centers.
Fixed-temperature elements react to heat by responding to a specific temperature setting. The fixed-temperature element uses a fusible alloy. When activated, the external heat collector drops away to provide quick visual confirmation that the element has operated.
The units protrude only 1-3/8″ (34.925 mm) from the ceiling surface with a junction box mounting. They have pleasing contours and an all-white finish that conforms to ceiling aesthetics.
| Weight | 0.2 lbs |
|---|---|
| Manufacturer | Honeywell International |
| Type | Detector |
| Style | Hard-Wired |
| Detectable Medium | Heat |
| Detection Method | Fixed Temperature, Rate-of-Rise |
| Thermal Rating | 135°F |
| Production Status | Obsolete |
| Brand |
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