Under the following circumstances, the burner shall automatically cut off the fuel supply within a safe time and the system shall be interlocked safely:
(1) When the burner is started, a flame is detected within the pre-blowing time and no flame is detected within the ignition (main) fire safety time.
(2) The flame suddenly goes out when the burner is running.
(3) When there is an abnormal signal of air monitoring (fault of air supply system).
(4) When the gas pressure is lower or higher than the set value.
(5) When the burner is in operation, the burner and its spray gun are rotated or moved without using tools.
(6) When the limiter related to the heating equipment exceeds the limit (such as: pressure, water level, temperature, etc.).
Under the following circumstances, the burner shall automatically cut off the gas supply within a safe time and the system shall be shut down safely, and the burner shall be restarted only after manual reset or cutting off and restoring the power supply. When the burner main switch is touched.
