Sterling GP Series specifications Access Levels

Page 26

4-4 Access Levels

The controller is setup to allow access to three distinct password groups: operator, supervisor, and service. Operator access allows the user to modify the Leaving Water Temp, Hi Temp

GP Series Portable Chillers

Chapter 4: Operation

26 of 44

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Contents GP Series Portable Chillers Shipping Information Table of Contents Maintenance Safety Symbols Used in this Manual SafetyHow to Use This Manual Responsibility General Description Functional DescriptionModels Covered in This Manual Chilled Water CircuitElectrical Features Standard FeaturesMechanical Features Controller Features Safety Devices and InterlocksRefrigeration Features Other FeaturesHigh Pressure Cutout Optional FeaturesFlow Switch Remote Start/Stop InterlockMounting Features Optional Pump Amperages Voltage Construction Full Load Amps Electrical Connections InstallationUncrating Galvanic Corrosion Considerations Process Water ConnectionsBypass Valve Considerations Water Treatment ConsiderationsAir-Cooled Chiller Condensers Condenser ConsiderationsWater-Cooled Chiller Condensers Water Pumps Three-Phase CompressorsChecking Motor Direction Condenser FanWater Reservoir Part Number DescriptionEthylene Glycol and Propylene Glycol Curves Initial Start-Up Finishing Setup Setting Up PasswordsAutomatic Water Make-Up Option Page Page Microprocessor Controller Panel Buttons, Indicator Lights, and SwitchesOperation Main Status Screen Operator Setpoints Screen Status Screens Access Levels Page Controller Setpoints Menu Screen Alarms Optional CommunicationsGP Series Portable Chillers Operation Lubrication MaintenanceFilter Cleaning Maintaining the CondenserEvaporator Process Piping Y-Strainer Preventative Maintenance ServiceMaintaining the Evaporator Troubleshooting GP Series Portable Chillers TroubleshootingGP Series Portable Chillers Troubleshooting Returned Material Policy Warranty ReturnsAppendix Credit ReturnsParts Department Service DepartmentTechnical Assistance Sales DepartmentSpecifications Air-Cooled Portable ChillersPAC-40 Water-Cooled Portable Chillers PWC-20PWC-50 Pump Curves, Flow, and Pressure Considerations Hertz Pump CurvesCalculating Chiller Nominal Flow and Pressure to Process Electrical Schematic