Installation Operation Maintenance

ControlsFire thermostatThere are two sensors in the firethermostat Kit: Sensor X13100040-01 is factory-set to open at 57°C,Sensor X13100040-02 is set to openat 115°C.Sensors are mounted directly in theductwork. They should be installedwhere elements can respondquickly to air temperature changes.If not possible, the sensor may beinstalled on a suitable bracket sothe air is drawn across the element.Sensor X13100040-01 has to bemounted in the return air duct.Sensor X13100040-02 has to bemounted in the supply air duct.Note: Do not permit element guardto touch internal parts. Do notlocate sensor where the aircirculation is restricted by baffles.At the selected location, cut a holeto clear element guard and drillholes for mounting screwsaccording to Figure 23. Connectwires according to Figure 24.Figure 23 - Duct mounting of firethermostatFigure 24 - Connection of fire thermostatwith TCI board21 = Field-supplied emergency stopdevice2 = Remove factory-supplied jumper11 = Fire thermostat2 = Hole in the duct40RT-SVX20B-E4