Conair HTC 120, User Manual

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Control Function Descriptions
(continued)
Screen 22 -Dehumidified Air Circuit PID Setup Screen
To access the Dehumidified Air Circuit PID Setup Screen (Screen 22):
1
Press the "VFD PID Setup” button
located on the Equipment Setup Screen
(Screen 20).
The Dehumidified Air Circuit PID screen allows the user to start or stop the dryer and
to select “Auto” or “Manual” operation for the dryer’s blower. It also provides the user
with the status (running or idle) of the dehumidified air drying circuit blower and infor-
mation concerning the air flow leaving the blower. It also shows the user the regenera-
tion temperature, dew point, air flow, high air flow alarm, low air flow alarm, PID gain,
integral, derivative, Loop Time set point, and the deadband set points.
If the user is logged-in at the proper security level, all setpoints contained on this screen
can be changed using the pop-up keypad window.
The user can also view the other system parameters, start the system, stop the system,
initiate a system Cool Down or return to the "Login" screen by pressing the applicable
buttons on the right of the screen.
NOTE: The air flow setpoint
will be shown as "%" if the
dryer airflow VFD is set to
"Manual”. The air flow setpoint
will be shown as "CFM" if the
dryer is set to "Auto".
✐
NOTE:
Set points boxes are white
with heavy black borders. Set
points can be changed, if the user
has logged in at the proper security
level, by pressing the setpoint
boxes. This will launch a pop-up
keypad window that can be used to
change the setpoint.
See Operation
section entitled, Example Set Point
Change.
After the new setpoint
value has been entered, press the
"Enter" key to lock in the new set-
point.
✐
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