The 31667 Snow/Ice Detector & Melting Control is designed to control a single zone snow melting system. The snow melting system may be started manually or automatically through the use of a Snow / Ice Sensor 30090. The control automatically adjusts the mixed supply water to the snow melting system by controlling a variable speed pump or floating action mixing valve. The 31667 control includes a large Liquid Crystal Display (LCD) in order to view system status and operating information. Outdoor sensor and 2 universal sensors are included. 120 Vac 50/60 Hz 600 VA
