Instruction Manual

Screw Compressor Central Chillers Chapter 1: Safety iii
Table of Contents
CHAPTER 1: SAFETY ............................................................... VI
1-1 How to Use This Manual ............................................................................................. vi
Safety Symbols Used in this Manual .................................................................... vi
1-2 Warnings and Precautions ......................................................................................... vii
1-3 Responsibility ............................................................................................................ viii
General Responsibility ........................................................................................ viii
Operator Responsibility ........................................................................................ ix
Maintenance Responsibility ................................................................................... x
Reporting a Safety Defect ..................................................................................... x
CHAPTER 2: FUNCTIONAL DESCRIPTION ........................... 11
2-1 Models Covered in This Manual ................................................................................ 11
2-2 General Description .................................................................................................. 11
2-3 Standard Features .................................................................................................... 11
Mechanical Features ........................................................................................... 11
Electrical Features ............................................................................................... 12
Controller Features .............................................................................................. 12
Standard Features on Remote Condensers ........................................................ 12
2-4 Options ...................................................................................................................... 13
2-5 Safety Devices and Interlocks ................................................................................... 13
CHAPTER 3: INSTALLATION .................................................. 15
3-1 Uncrating the Equipment ........................................................................................... 15
3-2 Rigging and Placing the Chiller ................................................................................. 15
3-3 Making Electrical Connections .................................................................................. 16
3-4 Setup Procedures ..................................................................................................... 17
Piping Considerations ......................................................................................... 17
Making Process Water Connections ................................................................... 18
Making Tank Piping Connections ........................................................................ 19
Water Connection Sizing Considerations ............................................................ 21
Galvanic Corrosion Considerations ..................................................................... 21
Water Treatment Considerations ........................................................................ 21
Making Water-Cooled Condenser Connections .................................................. 21
Installing the Remote Air-Cooled Central Chiller Condensers ............................ 23
Checking Motor Direction .................................................................................... 28
Changing fan rotation direction ........................................................................... 28
3-5 Initial Start-up ............................................................................................................ 28
Pre-Startup Checks ............................................................................................. 28
Determining Chilled Water Flow Rate ................................................................. 32
CHAPTER 4: OPERATION ....................................................... 33
4-1 Start-up ..................................................................................................................... 33
Water & Remote Air-Cooled Central Chiller Startup ........................................... 33
4-2 Controller Description ................................................................................................ 34