Grain Systems PNEG-584 - Manual (Page 20)

20
SERIES TWO HEATER
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 Dif-
ferential) 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 mode. If the flame shuts off
because
MULTIPLE HEATER NOTES
When multiple heaters are connected
together, the temperature and humid-
ity sensors must be connected 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,
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.
the humidity is less than the humidity set point,
the humidity must rise above the (Set Point plus Humid-
ity 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.
HEATER OPOERATION PROCEDURE
the fan and heater shut down when
the time expires. This is indicated by
the lower left cursor flashing.
Depressing the start switch again
(while holding in on the "SHUT-
DOWN 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. Depressing the start
switch one more time returns the
heater into the continuous--non-shut-
down mode.