Installation Instructions
Page 4
... place If the system switch is 40° to 99°F (5° to 37°C). Each press of the thermostat to the desired mode. T8400C AND T8401C ELECTRONIC THERMOSTATS Slide the FAN switch in the bottom left corner of the thermostat to select the desired system setting. Each press changes...heat cycle rate, all segments on the digital display. When the keys are released, these two-digit codes are shown separately on display and to test heat or cool outputs. press and hold to Set and flashes. The t indicator points to Set when the temperature setpoint is displayed and to ...
... place If the system switch is 40° to 99°F (5° to 37°C). Each press of the thermostat to the desired mode. T8400C AND T8401C ELECTRONIC THERMOSTATS Slide the FAN switch in the bottom left corner of the thermostat to select the desired system setting. Each press changes...heat cycle rate, all segments on the digital display. When the keys are released, these two-digit codes are shown separately on display and to test heat or cool outputs. press and hold to Set and flashes. The t indicator points to Set when the temperature setpoint is displayed and to ...