AEC 2-40 HP Portable Chillers - Manual (Page 4)

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