Alarm Mode Screen 1 – Left Tower Drying; Alarm Mode Screen 5 – Left Tower, Upper Sensor - Gardner Denver DGH Series Instruction Manual

•
If the alarm condition clears for one cycle, then the alarm
LED stops blinking (LED on); the alarm message
continues to be displayed.
•
Exception: If the alarm is caused by the condition in
Section 7.9.1, then the cycle stops. Once the alarm
condition is corrected, the alarm LED stops blinking (LED
on) and the cycle continues normally; the alarm message
continues to be displayed.
•
In the demand cycle, the control switches to a fixed 10
minute cycle when the alarm LED begins blinking. Control
switches back to the selected demand cycle after the
alarm condition clears. This applies to pressure switch,
thermistor, and outlet dew point alarms, but not to drain
alarms.
•
When the alarm condition is corrected, press the reset
button to extinguish the alarm LED and to clear the alarm
message from the text display.
The following text display is shown for each alarm. The second
line of the alarm screens contains up to three messages, which
are scrolled through, displaying each one for 3 after the alarm
condition clears seconds.
7.9.1.4 Alarm Mode Screen 1 – Left Tower Drying – Low
Pressure (Open Pressure Switch Circuit)
ALARM
LEFT TOWER
DRYING
LOW PRESSURE
7.9.1.5 Alarm Mode Screen 2 – Left Tower Regenerating –
High Pressure (Closed Pressure Switch Circuit)
ALARM
LEFT TOWER
REGENERATING
HIGH PRESSURE
7.9.1.6 Alarm Mode Screen 3 – Left Tower Regenerating-
Low Pressure (Open Pressure Switch Circuit)
ALARM
LEFT TOWER
REGENERATING
LOW PRESSURE
7.9.1.7 Alarm Mode Screen 4 – Left Tower, Upper Sensor
(Thermistor) Under-Range
ALARM
LEFT TOWER
UPPER SENSOR
UNDER-RANGE
7.9.1.8 Alarm Mode Screen 5 – Left Tower, Upper Sensor
(Thermistor) Over-Range
ALARM
LEFT TOWER
UPPER SENSOR
OVER-RANGE
7.9.1.9 Alarm Mode Screen – Left Tower, Lower Sensor
(Thermistor) Under-Range
ALARM
LEFT TOWER
LOWER SENSOR
UNDER-RANGE
7.9.1.10 Alarm Mode Screen 7 – Left Tower, Lower Sensor
(Thermistor) Over-Range
ALARM
LEFT TOWER
LOWER SENSOR
OVER-RANGE
7.9.1.11 Alarm Mode Screen 8 – Right Tower Drying – Low
Pressure (Open Pressure Switch Circuit)
ALARM
RIGHT TOWER
DRYING
LOW PRESSURE
7.9.1.12 Alarm Mode Screen 9 – Right Tower
Regenerating – High Pressure ( Closed Pressure Switch
Circuit
ALARM
RIGHT TOWER
REGENERATING
HIGH PRESSURE
7.9.1.13 Alarm Mode Screen 10 – Right Tower
Regenerating- Low Pressure (Open Pressure Switch Circuit)
ALARM
RIGHT TOWER
REGENERATING
LOW PRESSURE
7.9.1.14 Alarm Mode Screen 11 – Right Tower, Upper
Sensor (Thermistor) Under-Range
ALARM
RIGHT TOWER
UPPER SENSOR
UNDER-RANGE
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7. Controller – Level 2
7. Controller – Level 2