Sterling GP Series Benutzerhandbuch

GP Series Portable Chillers 

Chapter 4: Operation 

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the 

 to accept the password. The following screen will appear. 

 

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. 

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. 

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. 

When using the communications function, you must add on the unit for RS-485 Modbus 
communications. The communications function allows you to read/write parameters, do 
operating instructions, and select the setting level.