User guide

When supplied for cen-
tral drying applications,
the W series dryer is not
equipped with a process
heater. Therefore the set-
back function is not
applicable.
Using the Setback Feature (Optional)
The setback function available on the Carousel Plus W series dryer with DC-1
control is designed to save you money on energy costs and keep you from over
drying your material.
The optional setback feature, if installed from the factory, is disabled and will need
to be enabled in access code 754 (Screen 45).
This is how setback operates when installed and turned on:
The control monitors the temperature of the air exiting the drying hopper. If that
temperature reaches a customer entered setpoint (Screen 10), the delivery process
air temperature will automatically setback to a customer-entered setpoint
(Screen 11). Then, if the air exiting the drying hopper drops below the customer-
entered temperature on Screen 10 by an amount greater than what is shown on
Screen 23, the process temperature will automatically reset back to the original
process temperature (Screen 5).
To turn on and setup the setback option:
1 Enter the access code 754 (see Screen 14). Then using the scroll buttons,
scroll to menu Screen 45.
2 Turn the setback function for temperature option to "On" by pressing the
(+) key.
3 Push the scroll button to return to access code 754, then change the code to
500. Once the number has been entered push the scroll button or cycle the
power to clear the access code.
4 Go to Screen 10. This is where you will set the temperature setpoint for the air
at the outlet of the drying hopper.
5 On Screen 11 set the temperature setpoint to which the process air will revert
to once the air at the outlet of the drying hopper has reached its setpoint.
(continued)
4-24 l Operation
NOTE: Screen 5 will
still show normal dry-
ing temperature as
setpoint when setback
is active.
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