Grain Systems PNEG-1702 - Manual (Page 57)

PNEG-1702 ETL Listed GSI/FFI Portable Dryer Manual 57
9. Vision/Dri-Tek Dryer Operation
Dryer Start-Up and Operation Full Heat Drying
Full Heat Operation
With this type of drying, the grain is discharged hot, with no cooling. Drying capacity is substantially higher
with full heat than the dry and cool process.
Final Moisture
The cooling process usually removes 1% to 3% moisture, so hot shelled corn is removed from the dryer
at about 17% moisture if the final desired moisture content is 15%.
Drying Temperatures
Shelled Corn
For shelled corn with an initial moisture content of 25%-30%, the recommended maximum drying
temperature is 220°F-240°F (104°C-116°C) for the top fan and 170°F-190°F (77°C-88°C) for the
bottom fan.
Small Grain
For drying small grain (wheat, oats, milo), 150°F (66°C) is suggested.
Soybeans
Drying temperatures are critical in drying rice and soybeans. A temperature of 130°F (54°C) is
recommended to keep grain temperature low.
Drying Efficiency
The general rule for obtaining the highest drying efficiency is to use the highest possible drying
temperatures that does not adversely affect grain quality.
Dryer Shutdown
Cooling Hot Grain
If the dryer is to be shutdown while filled with grain, it is recommended that hot grain be cooled for
10 to 15 minutes, especially in cold weather, to prevent water vapor condensation and possible freezing
of such condensate following shutdown.
Initial Setup Parameters
Turn the Control Power switch to ON. When the Boot Screen appears, select the Start button. The
computer will run a quick check of the system network, after which the Default Operation Screen
will appear.
Timer and Delay Settings
To set the timers, select the button at the bottom of the Default Operation Screen. The “Select
Timers to Modify” Screen will appear. See instructions in Vision Manual to set the timer and delays.