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Problem
Regeneration Outlet RTD
Integrity
- The control can not
sense the regeneration outlet
RTD.
Dewpoint Deviation High
-
Displayed when the actual
dewpoint goes above the set-
point by a specified amount of
time and degrees. Defaults are
set for 5°F {3°C} for 60 sec-
onds.
Dewpoint Deviation Low
-
Displayed when the actual
dewpoint goes below the set-
point by a specified amount of
time and degrees. Defaults are
set for 5°F {3°C} for 60
seconds.
Possible cause
There is a loose connection in the
wiring leading to the RTD.
The connection of the RTD plug on the
control board is loose.
The regeneration outlet RTD has failed.
The control board has failed.
Desiccant wheel not turning.
The hose or wiring connections to the
sensor block are loose or have fallen off.
Poor regeneration air flow.
The desiccant wheel may be contaminat-
ed.
Leaks in the process air stream.
The dewpoint can not control to the
desired setpoint.
The dewpoint sensor has failed.
Solution
Check the RTD plug connection and
make any necessary repairs.
Check the plug connection and tighten
if needed.
Replace the regeneration outlet RTD.
Replace the control board.
See Troubleshooting section entitled,
Passive alarms, Wheel rotation alarm
.
Check wiring and hose connections to
the sensor, resecure if needed.
Remove the air flow restrictions, dirty
filters, etc.
Check the desiccant wheel for contami-
nation, replace if needed.
See
Troubleshooting section entitled,
Replacing the desiccant wheel assembly
.
Check for worn or loose hoses.
Install plasticizer/volatile trap for severe
situations.
Material and/or ambient condition may
be too dry to increase the actual dew-
point. Please wait several hours to deter-
mine if the setpoint can be reached.
Increase the dewpoint low deviation
value.
Replace the dewpoint sensor.
6
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P a s s i v e A l a r m s
If an alarm occurs, a red dialog box is displayed on the dryer’s touch screen control. The
dryer continues to operate, but this problem could prevent correct drying of your material.
The dialog box will indicate whether the alarm is a shut down alarm or a passive alarm.
NOTE:
This alarm is factory
defaulted to OFF.
✐
Tr o u b l e s h o o t i n g l
6 - 2 1
Summary of Contents for Carousel Plus W Series
Page 6: ...iv l Table of Contents...
Page 20: ...2 8 l Description...
Page 34: ...3 14 l Installation...
Page 44: ...4 10 l Operation Control Function Flow Charts From the Alarm screen Home Alarms...
Page 114: ...4 80 l Operation...
Page 130: ...4 96 l Operation...
Page 184: ...B 3 l Appendix...