GP Series Portable Chillers iii
Table of Contents CHAPTER 1: SAFETY................................................................ 5
1-1 How to Use This Manual .............................................................................................5
Safety Symbols Used in this Manual..................................................................... 5
1-2 Warnings and Precautions ..........................................................................................6
1-3 Responsibility ..............................................................................................................6
CHAPTER 2: FUNCTIONAL DESCRIPTION............................. 7
2-1 Models Covered in This Manual.................................................................................. 7
2-2 General Description.....................................................................................................7
Chilled Water Circuit..............................................................................................7
Refrigeration Circuit...............................................................................................7
2-3 Standard Features.......................................................................................................8
Mechanical Features............................................................................................. 8
Electrical Features.................................................................................................8
Refrigeration Features...........................................................................................9
Controller Features................................................................................................9
Other Features ......................................................................................................9
2-4 Safety Devices and Interlocks..................................................................................... 9
Crankcase Heater .................................................................................................9
High Pressure Cutout.......................................................................................... 10
Low Pressure Cutout (no switch but done through the transducer) ....................10
Flow Switch .........................................................................................................10
Remote Start/Stop Interlock ................................................................................10
2-5 Optional Features...................................................................................................... 10
CHAPTER 3: INSTALLATION..................................................13
3-1 Uncrating................................................................................................................... 13
3-2 Electrical Connections............................................................................................... 13
3-3 Process Water Connections....................................................................................... 14
3-4 Bypass Valve Considerations....................................................................................14
3-5 Galvanic Corrosion Considerations........................................................................... 14
3-6 Water Treatment Considerations ..............................................................................14
3-7 Condenser Considerations........................................................................................ 15
Water-Cooled Chiller Condensers.......................................................................15
Air-Cooled Chiller Condensers............................................................................ 15
Remote Air-Cooled Chiller Condensers ..............................................................16
3-8 Checking Motor Direction.......................................................................................... 20
Three-Phase Compressors .................................................................................20
Water Pumps.......................................................................................................20
Condenser Fan....................................................................................................20
3-9 Water Reservoir ........................................................................................................21
3-10 Automatic Water Make-Up Option.............................................................................23
3-11 Initial Start-Up............................................................................................................23
3-12 Finishing Setup: Setting Up Passwords .................................................................... 23