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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
Typical Applications ............................................................................................... 7
System Limitations ................................................................................................ 7
Chilled Water Circuit .............................................................................................. 8
Refrigeration Circuit ............................................................................................... 9
2-3 Standard Features ..................................................................................................... 10
Mechanical Features ........................................................................................... 10
Electrical Features ............................................................................................... 11
Refrigeration Features ......................................................................................... 11
Controller Features .............................................................................................. 12
Other Features .................................................................................................... 12
2-4 Safety Devices and Interlocks .................................................................................... 12
Crankcase Heater ............................................................................................... 12
High Pressure Cutout .......................................................................................... 13
Low Pressure Cutout (no switch but done through the transducer) .................... 13
Flow Switch ......................................................................................................... 14
Remote Start/Stop Interlock ................................................................................ 14
2-5 Optional Features ...................................................................................................... 14
CHAPTER 3: INSTALLATION .................................................. 16
3-1 Uncrating .................................................................................................................... 16
3-2 Electrical Connections ............................................................................................... 16
3-3 Process Water Connections ...................................................................................... 17
3-4 Bypass Valve Considerations .................................................................................... 17
3-5 Galvanic Corrosion Considerations ........................................................................... 18
3-6 Water Treatment Considerations ............................................................................... 18
3-7 Condenser Considerations ........................................................................................ 18
Water-Cooled Chiller Condensers ....................................................................... 18
Air-Cooled Chiller Condensers ............................................................................ 19
Remote Air-Cooled Chiller Condensers .............................................................. 20
3-8 Checking Motor Direction ........................................................................................... 27
Three-Phase Compressors ................................................................................. 27
Water Pumps ....................................................................................................... 27
Condenser Fan ................................................................
.................................... 27
3-9 Water Reservoir ......................................................................................................... 28
3-10 Automatic Water Make-Up Option ............................................................................. 31
3-11 Initial Start-Up ............................................................................................................ 31
3-12 Finishing Setup: Setting Up Passwords ..................................................................... 33
CHAPTER 4: OPERATION ....................................................... 35
4-1 Panel Buttons, Indicator Lights, and Switches ........................................................... 35
Microprocessor Controller ................................................................................... 35
4-2 Initial Start-up ............................................................................................................. 36
4-3 Status Screens ........................................................................................................... 37