Sterling GP Series Manuale Utente
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