Tr o u b l e s h o o t i n g l
6-11
6
Tr
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Problem
Delivery Air Heater Box
High Temperature
– The
snap switch in the delivery air
heater tube opens due to
excessive temperature.
Heat Booster RTD Integrity
– If the process RTD is faulty,
it shuts down the dryer.
Possible cause
There is an airflow blockage or loose
hoses.
The process blower is not running or
running in the wrong direction.
The isolation contactor failed in the
closed position.
The delivery air heater output on the
board has failed.
The heater solid state relays (SSRs)
failed.
The process RTD connection to the con-
trol box is loose.
The connection in the electrical enclo-
sure for the process RTD is loose.
The connection of the RTD plug on the
control board is loose.
The process RTD has failed.
The control board has failed.
Solution
Locate and remove any airflow restric-
tions.
Tighten any loose hoses.
Correct the cause of the non-running
blower (blown fuse, etc.) or reverse the
rotation of the blower.
Replace the isolation contactor.
Replace the board.
Replace the failed heater solid state
relays (SSRs).
Check the connection to the receptacle
and tighten if needed.
Check the RTD plug connection and
tighten if needed.
Check the plug connection and tighten if
needed.
Replace the process RTD.
Replace the control board.
Shutdown Alarms
If an alarm occurs, a red dialog box is displayed on the dryer’s touch screen
control. The dryer will shut down automatically to prevent damage to the
equipment or personnel. The dialog box will indicate whether the alarm is a
shut down alarm or a passive alarm.
Summary of Contents for Carousel Plus UGD043-1216
Page 7: ...Table of Contents l v...
Page 8: ...vi l Table of Contents...
Page 48: ...3 24 l Installation Testing...
Page 54: ...4 6 l Operation Control Function Flow Charts continued Login Flow Chart...
Page 55: ...4 O p e r a t i o n Operation l 4 7 Operation Basic Controls...
Page 56: ...4 8 l Operation Control Function Flow Charts continued Operation Flow Chart 1 continued...
Page 58: ...4 10 l Operation...
Page 59: ...Operation Dew Point Package Controls 4 O p e r a t i o n Operation l 4 11...
Page 60: ...Control Function Flow Charts continued Operation Flow Chart 1 4 12 l Operation...
Page 62: ...4 14 l Operation...
Page 63: ...4 O p e r a t i o n Operation l 4 15 Operation Setup Control...
Page 64: ...4 16 l Operation Control Function Flow Charts continued continued Setup Flow Chart 1...
Page 66: ...4 18 l Operation continued Control Function Flow Charts continued Equipment Setup Flow Chart 2...
Page 164: ...6 46 l Troubleshooting...