GSI Outdoors PNEG-951 - Manual (Page 36)

36 PNEG-951
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.
Dryeration Process
The full heat process is called “DRYERATION”. Recommended procedure is to temper the hot grain for 4 to 10
hours in a cooling bin or storage bin, then cool by an aeration fan at an air flow rate of 1/2 to 1 CFM per bushel of
grain in the hot batch being cooled. The process of tempering and slow cooling provides higher quality in shelled
corn because of less stress cracking of kernels and less breakage during subsequent handling of the grain.
Final Moisture
From 1 to 3% apparant moisture is usually removed in the cooling process, 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
220-240° F (104-116° C) for the top fan and 170-190° F (7788° C) for the bottom fan. For lower initial moisture
content, lower drying temperatures are recommended.
Small Grain
For drying small grain (wheat, oats, milo), 150° F (66° C) is suggested.
Rice, 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 which
will not adversely affect grain quality.
Dryer Shutdown
Cooling Hot Grain
If the dryer is to be shut down 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 shut down.
INITIAL SETUP PARAMETERS
Timer and Delay Settings
Turn the control power switch to on. The monitor will display a copyright message and model number, total
running time in hours and minutes and the current time and date. To activate the controller press
the button.
The button will display four different setup screens. Press the button to bypass
each setup screen or the button to edit the delay currently on display.
The screens will display in the following order:
Load On Delay
Out of Grain Timer
Fan Sequencing Delay
Unload Cleanout Delay
Fan and Auger Delays