Aircel AHLD E-Series, Installation And Operation Manual

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Heatless Regenerative Desiccant Air Dryer
35
Aircel Programmable Controller
Alarm Pop-Up Screens
No Alarm is the normally closed state of the common alarm relay.
The Drain Fault is an alarm that triggers when there is no air
present on the drain or when the liquid level has reached a point
that needs to Drain and cannot. The drain will also fault if there is
a loss of power to the drain.
The Bad RH Probe is an alarm that shows when the relative
humidity (EMS) probe is out of range. This can be either high out
of range or low out of range. When this happens, the signal has
either been lost or the sensor may need to be replaced.
The Bad DEW-P Probe is the alarm for the dew point sensor probe
out of range. The out of range can be either high or low. This
can be either a complete loss of signal/voltage, the resistor can be
disconnected or the sensor may need to be calibrated.
The High Humidity Alarm is an alarm that is visible when the
dew point is higher than the set point. The set point for the high
humidity alarm can be changed but it is not recommended.
The FTS Alarm (Failure-to-Shift) is an alarm that is present when
a vessel does not depressurize correctly or if a vessel that is to be
drying does not have a pressure at or above a certain set pressure.