Elevated sound level and substantially reduced current draw indicate reverse rotation. After several minutes of operation, the compressor internal protector trips.

4-3 Status Screens

The controller has eight (8) preconfigured status screens. The main status screen (shown in Figure 11) shows the main operating points of the chiller: Entering and Leaving fluid temperatures; Leaving fluid sepoint, pump discharge pressure, tank fluid level (depth) , and percentage of hot-gas bypass output.

Figure 7 - Main Status Screen

Depressing cycles through the following screens (shown below) – Analog I/O, Digital I/O, and Test. The Analog and Digital I/O screens provide status of all of the inputs and outputs for the controller. The Test aides in troubleshooting the chiller when it is not functioning properly by displaying the basic information that a service person will need to know to determine the problem.

GP Series Portable Chillers

Chapter 4: Operation

25 of 44

Page 25
Image 25
Sterling GP Series specifications Status Screens