Sterlco GP Series 20-60 HP Packaged Chillers - Manual (Page 5)

GP Series Portable Chillers v
Table of Contents
CHAPTER 1: SAFETY ................................................................ 7
1-1 How to Use This Manual ............................................................................................... 7
Safety Symbols Used in this Manual ..................................................................... 7
1-2 Warnings and Precautions ............................................................................................ 9
1-3 Responsibility ................................................................................................................ 9
CHAPTER 2: FUNCTIONAL DESCRIPTION ........................... 10
2-1 Models Covered in This Manual .................................................................................. 10
2-2 General Description ..................................................................................................... 10
Typical Applications ............................................................................................. 10
System Limitations .............................................................................................. 10
Chilled Water Circuit ............................................................................................ 11
Refrigeration Circuit ............................................................................................. 12
2-3 Standard Features ....................................................................................................... 13
Mechanical Features ........................................................................................... 13
Electrical Features ............................................................................................... 14
Refrigeration Features ......................................................................................... 14
Controller Features .............................................................................................. 15
Other Features .................................................................................................... 15
2-4 Safety Devices and Interlocks ..................................................................................... 15
Crankcase Heater ............................................................................................... 15
High Pressure Cutout .......................................................................................... 16
Low Pressure Cutout (no switch but done through the transducer) .................... 16
Flow Switch ......................................................................................................... 17
Remote Start/Stop Interlock ................................................................................ 17
2-5 Optional Features ........................................................................................................ 17
CHAPTER 3: INSTALLATION ................................................. 19
3-1 Uncrating ..................................................................................................................... 19
3-2 Electrical Connections ................................................................................................. 19
3-3 Process Water Connections ........................................................................................ 20
3-4 Bypass Valve Considerations ...................................................................................... 20
3-5 Galvanic Corrosion Considerations ............................................................................. 21
3-6 Water Treatment Considerations ................................................................................ 21
3-7 Condenser Considerations .......................................................................................... 21
Water-Cooled Chiller Condensers ....................................................................... 21
Air-Cooled Chiller Condensers ............................................................................ 22
Remote Air-Cooled Chiller Condensers .............................................................. 23
3-8 Checking Motor Direction ............................................................................................ 30
Three-Phase Compressors ................................................................................. 30
Water Pumps ....................................................................................................... 30
Condenser Fan .................................................................................................... 30
3-9 Water Reservoir ........................................................................................................... 31
3-10 Automatic Water Make-Up Option ............................................................................. 34
3-11 Initial Start-Up ............................................................................................................ 34
3-12 Finishing Setup: Setting Up Passwords ..................................................................... 37
CHAPTER 4: OPERATION ....................................................... 39
4-1 Panel Buttons, Indicator Lights, and Switches ............................................................ 39
Microprocessor Controller ................................................................................... 39
4-2 Initial Start-up .............................................................................................................. 40
4-3 Status Screens ............................................................................................................ 42