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GP Series Portable Chillers Chapter 4: Operation 25 of 44
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.