METHOD OF STRENGTHENING FUNCTION OF PREVENTING CLOSURE OF EXHAUST FROM GAS BOILER

摘要

PURPOSE: A strengthening method of the function for preventing the closure of the exhaust of a gas boiler is provided to perform a normal ignition stroke by sensing the state of the closure of exhaust according to the respective RPM responding speed by setting the time for pre-purging of a blower fan in an ignition stroke. CONSTITUTION: A strengthening method comprising the steps of: starting high speed rotation of a blower fan by a control unit if a drive switch is turned on, and an initial time of burning is started and deciding if a certain rotation time passes; performing an ignition stroke by the control unit if the blower fan rotates at high speed for the certain time and deciding if the ignition is completed; and performing a normal combustion function by the control unit if the ignition is completed or performing a re-ignition stroke after setting the time of high speed rotation longer than the initial rotation time of the blower fan if the ignition is not completed.