For Direct Control of Fan Coils, Fans, Motor Starters, Circulator Motors, Contactors, Valves for Heating, Cooling & SPDT Applications FEATURES • Two dial stops for setting a maximum or minimum temperature. Mimimum between 66 to 87°F. Maximum between 60 to 81°F. • Thermostat mounts on 2” x 4” electrical box. • Includes set point locking feature at 66°, 69°, 72°, 75°, 78° or 81°F • Vertical or horizontal mounting. • Optional heating and cooling subbase S29-21 available.