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90 degrees over SP2. SP3-HI limit value all burners shut off to prevent over
firing or meltdown.
Lower FDC: SP1- value where lower burner "B1" (far end) will shut off to save fuel.
SP2- value where lower burner "B2" (stack end) will shut off to save fuel at 90
degrees over SP2.
Output indicators for SP1,SP2, & SP3
SP indicators are either illuminated or not
depending on if each SP value is met or
not met at the time.
DETAILED SEQUENCE OPERATION
• Starting the timer starts the upper burner and preheats the upper chamber.
• When preheat is reached output 2 on upper FDC goes live and starts the lower
burners. When the lower burners fire they often force cooler chamber air up and
drop the temperature, causing temporary recycling during the preheat on lower
burners. The upper burner will maintain firing to hold around SP1 upper FDC.
• Waste will soon start burning. All burners are firing. Some brief smoke or ash
may be seen at startup leaving the stack. This depends on what is burned and
how efficiently the ash was removed prior to the next burn.
• Associated burner indicator lights on control box will be on. If a burner light is on
this means the burner should be firing, does not mean the burner has established
a flame.
P77-3 SC30 Manual 9.27.2019
SP value is shown in green. SP1 will
always be shown by default, other SP
values can be viewed by clicking recycle
button bottom left pad (oval loop ). While a
given SP is visible that SP value may be
changed with arrow up and down pads
beside the recycle pad.
DO NOT ALTER SP VALUES WITHOUT
THOROUGH KNOWLEDGE OF
CONSEQUENCES FROM DOING SO.
Upper FDC: SP1-target temperature in
Secondary. Lower burners will come on at
SP3- Activates cooling water spray.
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