Sterling 682.88107.00 specifications Electrical Connections

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3-3 Electrical Connections

These units are designed for three-phase voltage operation. Refer to the unit nameplate for proper voltage and amperage requirements, and make sure your electrical service conforms.

Check the unit nameplate for correct voltage and amperage before making electrical connections!

Caution!

1.Provide a correctly sized and protected power supply to the unit.

2.If an electrical supply disconnect is not installed as a factory option, the customer is responsible to properly size and install a suitable disconnect.

3.Refer to National Electric Code (NEC) 430-24-26 for proper feed conductor and supply disconnect sizing.

4.Voltages must be within plus or minus ten percent (±10%) of the nameplate rating.

5.Maintain a safe ground and disconnect the power supply before servicing the unit.

A qualified electrician should make electrical connections and disconnect the electricity when service calls are needed.

Locate disconnects in an easily accessible location. Operators should not have to squeeze around the Upright unit to reach disconnects, especially in case of emergency.

When running conduit whips to the Upright unit, make sure that whips are routed away from hot piping.

DANGER! Improper electrical connections can cause damage to the unit and cause serious operator injury or death! Make sure that ALL electrical connections are made by a qualified electrician, and that ALL connections are tight.

Make all electrical supply connections at the front of the unit. An access panel covers all electrical connections. Run electrical connections to the supply terminals from either side of the unit. Make sure that all three phases are wired correctly. The pump runs backwards if not wired properly.

Upright Portable Hot Oil TCUs

Chapter 3: Installation

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Contents Upright Hot Oil Temperature Control Units Shipping Info Table of Contents Troubleshooting Safety How to Use This ManualSafety Symbols Used in this Manual Wear Safety Glasses and Work Gloves Responsibility General ResponsibilityOperator Responsibility RememberMaintenance Responsibility Reporting a Safety DefectFunctional Description Standard FeaturesMechanical Features Models Covered in This ManualElectrical Features Controller FeaturesOptions Heater Tank Feature DescriptionsImmersion Heaters PumpConnection Lines Electrical System ControlsElectrical Panel and System Components Air Purge Pressure SwitchSafety Thermostat Reservoir TankSafety Devices and Interlocks Safety Circuit StandardsCooling Optional Safety Device Lock-Outs Fail Safe OperationUncrating the Equipment InstallationInstallation Location Considerations Rigging and Placing the TCUElectrical Connections Setup Procedures Connecting PipingPiping Considerations for Mobile Installations Connecting Process Piping Connecting Cooling Water PipingConnecting Vent Piping Upright Unit Piping Setup Initial Start-up Starting the Hot Oil TCUPage Operation Start-upController Description & Operation Identifying Control Panel Switches Control Panel SwitchesIdentifying System Status Board Indicators System Status Board IndicatorsStatus Indicator Lights Mode Indicator LightsFault Indicator Lights Returning Fluid to the Tank Shutting Down the Hot Oil TCUPage Maintenance Maintenance SchedulePhotocopy this page for your maintenance records Routine Servicing Preventative MaintenancePreventative Pump Maintenance Draining the Unit for StorageCleaning the Pump Corrective MaintenanceAdjusting End Clearance Examining Internal PartsMaintaining the Pump Disassembling the PumpPump Assembly Thrust Bearing Adjustment Installation of Carbon Graphite BushingsTroubleshooting Problem Possible cause Corrective actionIntroduction OFF Problem Possible cause Corrective action Appendix Optional ComponentsTechnical Specifications Annex B InformationUpright Portable Hot Oil TCUs Appendix Drawings and Diagrams 18-24 GPM Pump ConstructionThrust Bearing Assembly Belt Tensioning Instructions Heater Gasket Part number Description 542-00007-08 Spare Parts ListImmersion Heaters Part number Description Pilot Lights Part number DescriptionControllers Part number Description Selector Switches and Push ButtonsPressure Switches Part number DescriptionSensing Probe Equipment Disconnect SwitchesSolenoid Valves Part number Description Heater Tank InsulationTCU Safety Tags Safety Tag InformationWarranty Returns Returned Material PolicyTCU Identification Serial Number Tag Technical Assistance