Sterling GP Series - Manual (Page 3)

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
3-8 Checking Motor Direction .......................................................................................... 16
Three-Phase Compressors .................................................................................16
Water Pumps.......................................................................................................16
Condenser Fan....................................................................................................16
3-9 Water Reservoir ........................................................................................................ 17
3-10 Automatic Water Make-Up Option............................................................................. 19
3-11 Initial Start-Up............................................................................................................ 19
3-12 Finishing Setup: Setting Up Passwords .................................................................... 19
CHAPTER 4: OPERATION....................................................... 22