CR/CF Series heat detectors offer fixed temperature or combination rate-of-rise and fixed temperature detection.
A temperature increase at the sensor of 15°F
(9°C) or more per minute activates the rate-of-rise feature. This
closes the contacts in the sensor to transmit the alarm condition
to the fire alarm control panel. When the rate-of-rise element alone
has been activated, the sensor is self-restoring.
If the temperature of the center disk
rises to the sensor’s rated temperature, the fixed temperature
element activates. This closes contacts in the sensor and transmits an alarm condition to the fire alarm control panel. The fixed
temperature element is non-restorable and, when activated, the
detector must be replaced. The need for replacement is indicated
when the center disk has fallen free from the detector.
•Double pole — normally open contact
•Mounting flexibility with screw terminals
•Positive alarm indication — for fixed temperature element
•70 ft. spacing
(CR models only)