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 deg F or more per min activates the rate of rise feature, closing 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 sensors rated temperature, the fixed temperature element activates, closing 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. Edwards CR/CF series heat sensors come standard with metal mounting plate. The plate is designed to install directly to a standard north American 3-1/2 or 4 in octagon box. Once the mounting plate is fixed, a simple twist will hold the detector in place.

Edwards Signaling™ Kidde Fire Alarm Heat Detector, Conventional Double Contact Rate-of-Rise/Fixed Temperature, Series: CR Series, 4900 sq-ft Detection, Specifications Met: CSFM Approved, 135 deg F Operating, 4-5/8 in L x 2 in H Dimensions

• Double pole-normally open contact
• Low profile with mounting plate
• Mounting flexibility with screw terminals
• Positive alarm indication for fixed temperature element
• Easy twist-on installation

• Catalog https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Edwards_Signaling_CF135_2_Catalog.pdf
• Specification Sheet https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Edwards_Signaling_CF135_2_Specification_Sheet.pdf