27
GAS VALVE FLOW
GAS IGNITION
GAS VALVE STRUCTURE
START KEY PUSH
VALVE 1 ON (VALVE 2 OFF)
IGNITER ON
IGNITER
TEMPERATURE ABOUT
2499°F(1343°C)
FLAME DETECT OPEN
IGNITER OFF 374°C(190°C)
VALVE 2 ON
GAS IGNITION
DRYING
VALVE 2 OFF
FLAME DETECT CLOSE
NO
NO
YES
YES
START
ON
ON
ON
GAS IGNITION
CLOSE
OPEN
OFF
OFF
VALVE 1
IGNITER
VALVE 2
FLAME
DETECT