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GP Series Portable Chillers Chapter 4: Operation 35 of 73
2. Depress the
or button to highlight SETPOINTS and press . If
passwords were setup (See Section 3-12 for information on the controller
passwords) the password screen will appear.
Enter the Operator Password by depressing the
to move the position of
the cursor, and then depressing the
or button to increment or
decrement the number. Once all of the numbers have been entered depress
the
to accept the password. The following screen will appear.
Figure 13 - Operator Setpoints Screen
3. Depress
to move the cursor to the Leaving Temp line. Use the or
button to increment or decrement the value. Depress to accept the
value and move the cursor down one line.
4. Adjust the Hi Temp Warning and Hi Temp Fault in the same manner.
5. Depress the
button twice to return to the main status screen.
4-6 Alarms
The controller is setup with multiple alarms, most of them configurable using the Supervisor
password. Section 4-5 Controller Setpoints gives a list of alarms that the controller is setup to
display. The alarms are broken up into two categories – warnings and faults. The warning
notifies the user that the parameter has been exceeded and the chiller is allowed to keep
operating, but should be monitored to determine the cause of the warning. The fault notifies
the user that the parameter has been exceeded and the chiller and pump has been shut down to
protect the system.
4-7 Optional Communications
The communications function allows you to monitor and set the parameters by a program
prepared and running on a host computer connected to the controller.