Grain Systems PNEG-728 - Manual (Page 25)

25
Autoflow Operation
Fan 2 Housing High Temperature
The temperature high limit, located on the
housing, on fan and heater number two opened,
indicating that the housing towards the bin has
overheated. This high limit sensor is set at 200
degrees Fahrenheit and must be manually reset.
Electrically there is a loss of 12vDC+ on J1-8 on
the input/output board.
Plenum High Temperature
An over temperature condition has oc-
curred inside the dryer plenum. The plenum high
limit is set automatically on the Hi-Lo thermostat
when the cycle set-point is adjusted and resets
automatically when cooled. The lo-fire pressure
Fan Shutdown Loss of Airflow
The contacts on the airswitch, located in
the bin sidewall and attached to fan and heater
number one, have opened due to the fan not
turning, or the airswitch may need to be adjusted.
Electrically there is a loss of 12vDC+ on J1-13 on
the input/output board.
needs to be lowered, or the cycle setpoint on the
Hi-lo thermostat needs to be increased, if the error
is displayed frequently. Electrically there is a loss
of 12vDC+ on J1-11 on the input/output board.
12 volt power supply warning
The right circuit breaker, located on the
input/output board, has tripped.
L1 Voltage Lost
The left circuit breaker, located on the
input/output board, has tripped or one of the
hardware timers has shut down the dryer. The
overload must be reset manually. Electrically
there is a loss of 12vDC+ on J5-6, or J5-10 on the
input/output board.
Fan 1 Motor Overload
The thermal overload in the control box on
fan number one, has tripped, indicating an
overcurrent condition. The overload must be reset
manually. Electrically there is a loss of 12vDC+
on J4-12 on the input/output board.
Fan 2 Motor Overload
The thermal overload in the control box on
fan number two has tripped, indicating an
overcurrent condition. The overload must be reset
manually. Electrically there is a loss of 12vDC+
on J4-18 on the input/output board.
resets itself when cool. The vaporizer is adjusted
by loosening the bolt and moving the vaporizer
coil away from the flame. Electrically there is a
loss of 12vDC+ on J1-5 on the input/output board.
Burner 2 Vapor High Temperature
The LP gas vapor temperature sensor
located on the gas pipe train downstream from the
vaporizer coil, on fan and heater number two has
opened, indicating that the vaporizer coil is run-
ning too hot and must be adjusted. This sensor is
set at 200 degrees Fahrenheit and automatically
resets itself when cool. The vaporizer is adjusted
by loosening the bolt and moving the vaporizer
coil away from the flame. Electrically there is a
loss of 12vDC+ on J1-6 on the input/output board.
Fan 1 Housing High Temperature
The temperature high limit, located on the
housing, on the fan and heater number one opened,
indicating that the housing towards the bin has
overheated. The high limit sensor is set at 200
degrees Fahrenheit and must be manually reset.
Electrically there is a loss of 12vDC+ on J1-7 on
the input/output board.
CONTROL SYSTEM