appear.

Figure 10 - Operator Setpoints Screen

5.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.

6.Depress the button twice to return to the main status screen.

7.Depress the to start the chiller.

8.Check pump rotation

9.Check the pump amp draw and pump pressure. Make sure that the amp draw reading is within the running load and service factor amps.

10.Operate the chiller, looking for any leaks and listening for unusual noises or vibrations that could indicate improper operation.

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 setpoint, pump discharge pressure, tank fluid level (depth), and percentage of hot-gas bypass output.

Figure 11 - 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

GP Series Portable Chillers

Chapter 4: Operation

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Sterling 882.93092.00 specifications Status Screens, Operator Setpoints Screen

882.93092.00 specifications

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