Tr o u b l e s h o o t i n g l
6 - 7
6
T
ro
u
b
le
s
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o
o
ti
n
g
( C o n t i n u e d )
S h u t d o w n A l a r m s
When an alarm condition appears on the control screen, it may be a shut-
down or a passive alarm. If the alarm is a shutdown alarm, the dryer will
shutdown automatically to prevent damage to the equipment or personnel.
Note that the bottom of the control will display a green alarm LED until the
condition is resolved.
✐
NOTE:
Some alarms can be set for
shutdown or passive. These alarms may
be listed in both sections.
Problem
Regeneration Heater High
Temperature
– The snap
switch in the regeneration
heater tube activated due to
excessive temperature.
Return Air High
Temperature
– If the return
air temperature at the inlet to
the blower is greater than
180°F {82°C}, it shuts down
the dryer. (The return air tem-
perature on W1300-5000 dry-
ers is measured at the inlet to
the desiccant wheel.)
Possible cause
The regeneration exhaust is blocked or the
air hoses are loose.
The regeneration blower is not running or
running in the wrong direction.
The isolation contactor failed in the
closed position.
The heater solid state relays (SSRs) failed.
The regeneration heater output on the
board has failed.
The hopper does not contain enough
material.
You are drying at a high drying tempera-
ture above 180°F {82°C} or you are
running at low throughputs.
The aftercooler does not have enough
water.
The aftercooler coils are dirty.
Solution
Locate and remove any airflow
restrictions.
Tighten any loose hoses.
Correct the cause of the non-running
blower (fuse, etc.) or reverse the rotation
of the blower.
Replace the isolation contactor.
Replace the failed heater solid state
relays (SSRs).
Replace the board.
Make sure your material supply system
is working properly.
Ensure water flow to the aftercooler.
Turn on the water supply, or fix any
leaks or blockages.
Clean the aftercooler coils.
See
Maintenance section entitled, Cleaning
the aftercooler coils.
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...