Grain Systems PNEG-1181 - Manual (Page 15)

5. Dryer Operation
PNEG-1181 Portable Dryer Troubleshooting 15
Dyer Model Number
This setting is critical to proper function of the dryer. The actual model number of the dryer is located
here and that number contains a great deal of valuable information about the dryer, including: number
of fans, number of modules, and the length of the dryer. This data is used by the computer to operate
the dryer properly. If any of this information is incorrect, the dryer will not operate properly and may not
operate at all. Use tremendous caution when changing this setting.
Temperature Scale
This option allows the user to toggle the temperature scale between Fahrenheit to Celsius.
Change Burner Set-Up
This setting controls the operation of each fan/heater unit on the dryer. Users can run any burner, or any
combination of burners, on either High/Low Fire or On/OFF Fire. This setting also allows users to render
a problem fan/heater inactive, thereby removing it from the programming of the dryer and allowing the
remainder of the dryer to continue running until the problem fan/heater can be repaired or replaced.
Set Time and Date
Use this setting to enter, store and adjust the time and date information.
Select Load System
While most dryers use the end fill option, GSI dryers also have the ability to run center fill and dual fill
modes if needed.
Unit of Measure
This setting allows the dryer to perform calculations in metric tons instead of bushels. This option is
useful for applications in foreign countries.
Change Burner Differential
The burner differential is the number of degrees that a fan/heaters temperature must drop before it will
cycle. Proper burner cycling means three (3) to four (4) times a minute the fan/heater should cycle from
high to low pressure. For this to happen, the burner must first reach the set point. The set point is the
desired running temperature for the plenum, usually around 220 degrees. When this temperature is
reached, the burner will shut off one solenoid and divert all of the gas through the low pressure ball
valve and the low pressure solenoid. Turn down the low pressure ball valve far enough to allow the
temperature to start to fall. When the temperature falls the number of degrees set by the differential, the
burner will cycle back to high. Keep in mind the burner should cycle three (3) to four (4) times a minute.