Sequence Of Operation - Lang SELECTRONIC Installation, Operation And Maintenance Instructions

SEQUENCE OF OPERATION

8.1 Power On
When the griddle is connected to 115 Volt power, the spark module for each section starts sparking.
While they are sparking the solenoid valve for the pilot burners are energized.
When the individual pilot burners ignite, and the pilot flame is verified, the spark module will stop
sparking. Note: The pilot burners will remain lit until the griddle is removed from power or the gas is
shut off.
When the main switch is turned on, 24 Volts is applied to the temperature control circuit.
When one of the individual section's switch is turned on, it provides power to the circuit board for that
section.
The operator can now set the temperature of that section by selecting it on the temperature dial.
When the temperature on the dial is set higher than the temperature of the griddle section the circuit
board will generate a "Heat call". This call (24 VAC Signal) goes to the solenoid valve opening the
valve. The pilot burner ignites the main burner.
As the griddle section temperature increases the temperature sense probe resistance increases.
When the griddle section reaches the temperature set on the selector switch, the circuit board which
monitors the probe resistance will turn off the heat call and there by close the gas valve.
When the griddle temperature drops below the set temperature the circuit board generates a new heat
call and the sequence repeats.
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