12.13 HIGH LINE PRESSURE ALARM
12.13.1 The High Line Pressure alarm will occur
should the line pressure rise above its set pressure.
The LCD will display a MINOR alarm condition
(Blinking Green/Red LED) with posted time and
date of the occurrence. Should the condition clear on
its own, the MINOR Alarm will automatically reset.
12.13.2 High Line Pressure Alarm is generally
caused by the same conditions discussed in Paragraph
12.12, except that high outlet ow can not be the
cause. A failure of the Line Pressure Regulator (29)
can be the cause and would show up when making
Alarm Point adjustments per paragraph 8.4.
12.14 ATS STANDBY SHUTDOWN
12.14.1 A.T.S. Standby Shutdown is normal
indication that the dehydrator is placed in Standby
Mode by an ATS300 Controller. When an ATS300
Controller causes the “Standby” to be displayed, all
dryer alarms are disarmed while in standby mode.
NOTE: During a start-up from a standby condition,
most alarm sensor remain disarmed up to 3 minutes.
The Humidity Bypass Valve will remain active
regardless of the Disarm signal to the Humidity
sensor. Only the Humidity Alarm output is disarmed.
13.0 BACKUP BYPASS OPERATION
13.1 The SmartTech Air Dryers can operate without
the Display Module or Alarm/ATS Interface Module
should a problem develop with either. Only a pressure
test gauge is required to verify or make adjustments
to the System Pressure and Line Pressure.
13.2 The Sensor Board is still required for controlling
and operating many of the SmartTechs functions.
13.3 To run in Backup bypass mode, rst turn OFF
the Air dryer. Locate the J6 Connector on the Sensor.
13.4 Locate the Backup J6 Connector in the wiring
harness (the cable has a wire marker “B” on it) and
connect it to the Sensor Board.
13.5 Remove the CO#1 and CO#2 Alarm connectors
from the Alarm/ATS Interface Module and reposition
them on the CO backup connections located directly
above. Also remove J6 and J5 off the alarm / ATS
interface board.
13.6 Restart the SmartTech Dryer and verify the
System Pressure and Line Pressure settings. Allow
for a warm-up period and recheck settings before
making any nal adjustments. NOTE: Prior to
restarting, the Display and Alarm/ATS Interface
Modules may be removed.
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