Sterling GP Series specifications Installation, Uncrating, Electrical Connections

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Chapter 3: Installation

3-1 Uncrating

All models are are shipped mounted on a skid, enclosed in a plastic wrapper, and open-crated on all four sides and top.

1.Pry the crating away from the skid.

2.Use a pry bar to remove the blocks securing the unit to the skid.

3.Lift unit from sides, inserting forklift under the base. The forks must be equidistant from the centerline of the unit and the unit must be balanced on the forks. Lift slowly and only high enough to clear the skid. Use a pry bar if necessary to carefully remove the skid from the unit.

4.Lower slowly. The unit should land on its casters or rails and can then be moved into position.

5.Retain the crating material for reshipping the chiller in case hidden shipping damage is found.

3-2 Electrical Connections

Supply electricity of the voltage, phase, and cycle listed on the serial tag. Total running amps are also found in the specification tables on pages in the Appendix.

Bring properly sized power leads and ground from a fused disconnect (installed by your electrician) to the unit. Use dual-element fuses in the disconnect switch, sized according to the National Electrical Code recommendations. Note the outline drawings for egress into the cabinet. Make sure all electrical connections are tight.

Important!

Refer to your local electrical requirements for proper feeder conductor and supply disconnecting sizing. For instance, in the United States refer to National Electric Code (NEC) Article 430-24 through 430-26, Table 310.15(B)(2)(a)

GP Series Portable Chillers

Chapter 3: Installation

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Contents GP Series Portable Chillers Shipping Information Table of Contents Maintenance How to Use This Manual SafetySafety Symbols Used in this Manual Responsibility Models Covered in This Manual Functional DescriptionGeneral Description Chilled Water CircuitMechanical Features Standard FeaturesElectrical Features Refrigeration Features Safety Devices and InterlocksController Features Other FeaturesFlow Switch Optional FeaturesHigh Pressure Cutout Remote Start/Stop InterlockMounting Features Optional Pump Amperages Voltage Construction Full Load Amps Uncrating InstallationElectrical Connections Bypass Valve Considerations Process Water ConnectionsGalvanic Corrosion Considerations Water Treatment ConsiderationsWater-Cooled Chiller Condensers Condenser ConsiderationsAir-Cooled Chiller Condensers Checking Motor Direction Three-Phase CompressorsWater Pumps Condenser FanPart Number Description Water ReservoirEthylene Glycol and Propylene Glycol Curves Automatic Water Make-Up Option Finishing Setup Setting Up PasswordsInitial Start-Up Page Page Operation Panel Buttons, Indicator Lights, and SwitchesMicroprocessor Controller Main Status Screen Operator Setpoints Screen Status Screens Access Levels Page Controller Setpoints Menu Screen Optional Communications AlarmsGP Series Portable Chillers Operation Filter Cleaning MaintenanceLubrication Maintaining the CondenserMaintaining the Evaporator Preventative Maintenance ServiceEvaporator Process Piping Y-Strainer GP Series Portable Chillers Troubleshooting TroubleshootingGP Series Portable Chillers Troubleshooting Appendix Warranty ReturnsReturned Material Policy Credit ReturnsTechnical Assistance Service DepartmentParts Department Sales 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