Page 12 of 20 506326-01Issue 0941START-UPTo Light Burners:1. Turn off electrical power to unit.2. Turn the thermostat to lowest setting.3. Turn the gas valve knob to the “ON” position (see Figure9).4. Turn on electrical power to the unit.5. Set the room thermostat to the desired temperature.If the thermostat “set” temperature is above roomtemperature after the pre-purge time expires, burnerswill light.For Your Safety Read Before LightingTo Shut Down Unit:1. Turn off electrical power to unit.2. Depress and turn the gas valve knob to the “OFF”position (see Figure 9).WARNINGIf you do not follow these instructions exactly, a fire orexplosion may result causing property damage, personalinjury, or loss of life.This furnace is equipped with a direct ignition control.Do not attempt to manually light the burners.CAUTIONGas ValveFigure 9ONOFFHONEYWELLGASINLETGASCONTROL KNOBREGULATORADJUSTMENT CAP