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.

GP Series Portable Chillers

Chapter 4: Operation

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Sterling 882.93092.00 specifications Alarms, Optional Communications

882.93092.00 specifications

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