6 - 8
l Tr o u b l e s h o o t i n g
When supplied for central
drying applications, these
shutdown alarms are not
available.
Problem
Delivery High Temperature
– If the delivery air tempera-
ture exceeds the delivery air
high temperature setpoint, it
shuts down the dryer. Defaults
are set to 385°F {196°C} for
20 seconds.
Delivery Temperature Loop
Break
– If the delivery tem-
perature is outside of the oper-
ator entered deviation, alarm
band (see Delivery High Tem-
perature Deviation passive
alarm) and the delivery tem-
perature is not moving to-
wards the setpoint at a rate
greater than specified. It shuts
down the dryer. Defaults are
set at 3°F {3°C} over 20 sec-
onds.
Possible cause
The delivery high temperature setpoint is
not at least 10°F {6°C} above the drying
setpoint.
One of the delivery (process) solid state
relays has failed.
The air lines are restricted or loose.
The delivery setpoint is too low.
The delivery heater output on the control
board has failed.
Delivery RTD is loose or has fallen out.
The delivery heater has failed.
The air lines are restricted or loose.
The delivery blower is not running or is
running in the wrong direction.
The delivery heater output on the board
has failed or the output fuse has failed.
Delivery setpoint is too low.
Setback setpoint is too low.
Solution
Reset the delivery high temperature
setpoint at least 10°F {6°C} above the
drying setpoint.
Replace the solid state relay.
Straighten any crimps in the hoses.
Tighten any loose hoses.
Set the delivery setpoint higher or install
an optional precooler.
Replace the control board.
Check the delivery RTD and tighten if
needed.
Check the heater fuses, and resistance
across each leg of the delivery heater.
Straighten any crimps in the hoses.
Tighten any loose hoses.
Correct the cause of the non-running
blower (blown fuse, etc.) or reverse the
rotation of the blower.
Replace the board or the fuse for the out-
put.
Adjust the setpoint or add a precooler.
Adjust the setpoint or add a precooler.
S h u t d o w n 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 will shut down automatically to prevent damage to the equipment or personnel. The di-
alog box will indicate whether the alarm is a shut down alarm or a passive alarm.
Central
Summary of Contents for Carousel Plus D Series
Page 6: ...iv l Table of Contents...
Page 20: ...2 8 l Description...
Page 40: ...3 8 l Installation...
Page 54: ...4 14 l Operation Control Function Flow Charts From the Login Logout screen Home Login Screen 3...
Page 90: ...4 50 l Operation...
Page 112: ...5 16 l Maintenance...
Page 208: ...C 46 l Appendix...