2-40 HP Portable Chillers iii
Table of Contents CHAPTER 1: SAFETY .................................................................6
1-1 How to Use This Manual............................................................................................. 6
Safety Symbols Used in this Manual.....................................................................6
1-2 Warnings and Precautions.......................................................................................... 7
1-3 Responsibility..............................................................................................................7
CHAPTER 2: FUNCTIONAL DESCRIPTION...............................8
2-1 Models Covered in This Manual..................................................................................8
2-2 General Description.....................................................................................................9
Chilled Water Circuit..............................................................................................9
Refrigeration Circuit...............................................................................................9
2-3 Standard Features.....................................................................................................10
Mechanical Features........................................................................................... 10
Electrical Features...............................................................................................11
Refrigeration Features.........................................................................................11
Controller Features..............................................................................................11
Other Features.................................................................................................... 11
2-4 Safety Devices and Interlocks................................................................................... 12
High/Low Thermostat Control..............................................................................12
Crankcase Heater ...............................................................................................12
High Pressure Cutout.......................................................................................... 12
Low Pressure Cutout...........................................................................................13
Oil Pressure Safety Switch……………………………………………………………13
Fan Cycling Switch..............................................................................................13
Pressure Switch ..................................................................................................13
Flow Switch......................................................................................................... 13
Remote Start/Stop Interlock................................................................................ 13
2-5 Optional Features......................................................................................................14
CHAPTER 3: INSTALLATION ...................................................17
3-1 Uncrating................................................................................................................... 17
3-2 Electrical Connections...............................................................................................17
3-3 Process Water Connections......................................................................................18
3-4 Bypass Valve Considerations....................................................................................18
3-5 Galvanic Corrosion Considerations...........................................................................18
3-6 Water Treatment Considerations ..............................................................................18
3-7 Condenser Considerations........................................................................................19
Water-Cooled Chiller Condensers.......................................................................19
Air-Cooled Chiller Condensers............................................................................19
Remote Air-Cooled Chiller Condensers.............................................................. 20
3-8 Checking Motor Direction.......................................................................................... 24
Three-Phase Compressors................................................................................. 24
Water Pumps.......................................................................................................24
Condenser Fan....................................................................................................24
3-9 Water Reservoir ........................................................................................................25
3-10 Automatic Water Make-Up Option.............................................................................27