Fan Coil Thermostat Electric Line Voltage Electric Low Voltage Thermostat Switch Type SPDT Switch Action Open/Close on Rise Number of Switches 1 Thermostat Control Range 50 Degrees to 90 Degrees F Differential (Deg. F) 3 Thermostat Heating/Cooling Heating/Cooling Thermostat Number of Pipes 1 Thermostat Number of Speeds 3 Fan Switching Hi-Med-Low System Switching On-Off Sensor Type Bi-Metal 4 1/2 in Sensing Bulb Dia (In.) - 2 7/8 in Sensing Bulb Length (In.) - 1 1/16 in