Sterling GP Series specifications Table of Contents

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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

GP Series Portable Chillers

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Contents GP Series Portable Chillers Shipping Information Table of Contents Maintenance Safety How to Use This ManualSafety Symbols Used in this Manual Responsibility Chilled Water Circuit Functional DescriptionModels Covered in This Manual General DescriptionStandard Features Mechanical FeaturesElectrical Features Other Features Safety Devices and InterlocksRefrigeration Features Controller FeaturesRemote Start/Stop Interlock Optional FeaturesFlow Switch High Pressure CutoutMounting Features Optional Pump Amperages Voltage Construction Full Load Amps Installation UncratingElectrical Connections Water Treatment Considerations Process Water ConnectionsBypass Valve Considerations Galvanic Corrosion ConsiderationsCondenser Considerations Water-Cooled Chiller CondensersAir-Cooled Chiller Condensers Condenser Fan Three-Phase CompressorsChecking Motor Direction Water PumpsPart Number Description Water ReservoirEthylene Glycol and Propylene Glycol Curves Finishing Setup Setting Up Passwords Automatic Water Make-Up OptionInitial Start-Up Page Page Panel Buttons, Indicator Lights, and Switches OperationMicroprocessor Controller Main Status Screen Operator Setpoints Screen Status Screens Access Levels Page Controller Setpoints Menu Screen Optional Communications AlarmsGP Series Portable Chillers Operation Maintaining the Condenser MaintenanceFilter Cleaning LubricationPreventative Maintenance Service Maintaining the EvaporatorEvaporator Process Piping Y-Strainer GP Series Portable Chillers Troubleshooting TroubleshootingGP Series Portable Chillers Troubleshooting Credit Returns Warranty ReturnsAppendix Returned Material PolicySales Department Service DepartmentTechnical Assistance Parts DepartmentAir-Cooled Portable Chillers SpecificationsPAC-40 PWC-20 Water-Cooled Portable ChillersPWC-50 Hertz Pump Curves Pump Curves, Flow, and Pressure ConsiderationsCalculating Chiller Nominal Flow and Pressure to Process Electrical Schematic