Grain Systems PNEG-1758 - Manual (Page 11)

1. Competitor/Dri-Tek Control Panel
PNEG-1758 Competitor/Dri-Tek Control Panel 11
Loss of Flame
The flame sensor failed to detect a burner flame, indicating that the burner has failed to light. There is a
problem with the flame sensing circuitry or the dryer is not getting burner fuel. The burner switch light will
be lit any time flame has been sensed by the burner controls.
Housing High Temperature
The temperature high-limit, located on the fan/heater housing has opened, indicating an over temperature
condition has occurred toward the rear of the fan/heater housing in an oblong covered electrical box. This
control is set at 200°F and MUST BE MANUALLY RESET.
Rear Discharge Warning
The lid on the grain discharge box has opened, indicating that grain is not being taken away fast enough
at the discharge box.
Motor Overload
One of the thermal overloads on either the fan, load, unload or auxiliary motors has opened, indicating an
over current condition. The overloads MUST BE MANUALLY RESET.
Grain High Temperature
An over temperature condition has occurred in one of the grain columns, causing the control to shutdown
the dryer. This control is set at 210°F and automatically resets itself when cool.
Out of Grain
The dryer has run low on grain and the out of grain timer has timed out, shutting the dryer down. The
unload auger will clean out the dryer if in continuous flow operation.
Plenum High Temperature
An over temperature condition has occurred inside the dryer plenum. This control is a 300°F limit and
automatically resets itself when cool.
See Emergency Cooling Mode on Page 10 .
No Airflow
The contacts in the Air switch have opened due to insufficient airflow for the burner to operate. The
contacts in the Air switch have opened due to the fan not turning or the Air switch may need adjusting.
Air
The Air switch contacts have closed prior to the fan starting, indicating a free wheeling blade or improper
setting of the Air switch.
Grain and Plenum High Temperature (Both at Same Time)
If both of these warnings appear on the screen at the same time, one of the two (2) mechanical high-limits,
located in each of the two (2) grain columns, has been tripped due to heat exceeding their 200° setpoint
or one or both have failed. They will automatically reset when the temperature returns below 200°.
NOTE: The emergency cooling feature will not function if either or both of these mechanical sensors
are tripped.