System Sensor's 5600 Series mechanical heat detectors offer property protection against fire and for non-life-safety installa- tions, where smoke detectors are inappropriate.Multiple configurations. The 5600 Series offers a full line of configurations to accommodate a broad range of applications. Both single- and dual-circuit models are offered, each avail- able for low- and high-temperature ratings with either fixed- temperature or combination fixed-temperature/rate-of-rise (ROR) activation. The ROR element of the fixed/ROR models is restorable, to accommodate field-testing the unit.Installation flexibility. To satisfy a variety of installations, the 5600 Series easily mounts to single-gang and octagonal back- boxes. These models also accommodate 4" (101.6 mm) square backboxes when used with a plastic ring. The mounting bracket is reversible to allow for flush- and surface-mount backbox installationsVisual identification. The 5600 Series provides clear mark- ings on the exterior of the unit to ensure that the proper detec- tor is being used. Alphanumeric characters identify the activation method, as well as the temperature rating, in degrees Fahrenheit and Celsius. Fixed temperature models are identified "FX", while combination fixed/rate-of-rise units are marked "FX/ROR". The 5600 Series also provides a col- lector as a post-activation indicator. Once the detector has been activated, the collector drops from the unit to allow easy identification of the specific unit in alarm.