Grain Systems PNEG-582 - Manual (Page 20)

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On hi-lo units when the unit
reaches cycle set point, the flame
will switch to lo-flame and unit will
not cycle back to hi-flame until (Set
Point minus Temperature Differen-
tial) is reached.
Temperature differential would
normally be set for 10-15 degrees F
for high temp units, and 2-5 degrees
F for lo-temp units.
Humidity Differential--The upper
right cursor is flashing indicating the
MULTIPLE HEATER NOTES
When multiple heaters are con-
nected together, the temperature
and humidity sensors must be con-
nected to the master.
the switch, depress the up and down
arrow switches to alter the hours.
Setting range is 0 to 200 hours.
DRYING GRAIN IN THE
HOURS TO SHUT DOWN
MODE
While drying grain, depress and hold
the "SHUTDOWN HOURS" switch.
While holding in on that switch, de-
press the "START" switch. After
depressing the start switch one time,
the heater is in the shutdown mode.
Then, the fan and heater shut down
when the time expires. This is indi-
cated by the lower left cursor flash-
ing.
Depressing the start switch
again (while holding in on the
"SHUTDOWN HOURS" switch) will
cause only the heater to shut off.
This leaves the fan on when the time
expires. This is indicated by the 2nd
from lower left cursor flashing. De-
pressing the start switch one more
time returns the heater into the con-
tinuous--non-shutdown mode.
RUN HOURS DISPLAY
Run hours are recorded when the
controller detects that the fan is on
(airflow). The hours may be viewed
by depressing the "HOURS" to get
hours and "HOURS X 1000" to get
the number of 1000 hours accumu-
lated.
mode. If the flame shuts off because
the humidity is less than the humid-
ity set point, the humidity must rise
above the (Set Point plus Humidity
Differential) for the flame to come
back on.
PROGRAMMING HOURS
TO SHUT DOWN
To change the hours to shut down,
depress and hold the "SHUTDOWN
HOURS" switch. While holding in on
Setting the cycle set point.
SERIES 2000 HEATER OPERATING PROCEDURE