SterlingTEK A0551797 manual SSC Series Central Chilling Stations

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þElectrical connections must conform to all applicable codes.

þComplete the chilled water TO and FROM PROCESS connections.

þThe optional or field installed chilled water supply and return valves must be open.

þBe sure the tank and chilled water circuit piping are filled with a water/glycol mixture. The water/glycol mix should provide freeze protection to 20°F below the leaving water temperature you’ve selected.

þThe air cooled condenser should have an adequate supply of air for proper operation.

þConnect the main power to the unit and bump-start it to check for proper rotation direction. If the fans are operating backwards, reverse any two main power leads at the incoming terminal block.

þRemove all tools, foreign matter and debris from the pump tank reservoir and piping.

þComplete all piping leading to and from the pump tank. Observe all applicable codes.

þComplete all electrical wiring. Observe all applicable codes.

þPrepare all related equipment in the system for operation.

Note:

∙Never switch contactor leads or motor leads for reversing rotation.

∙Do not use contactor or motor leads for phase matching.

∙Compressor noise from reverse rotation is noticeable. Do not run in this mode for more than ten (10) seconds. The compressor shuts off if run longer in this mode.

∙Reverse rotation can cause suction and discharge pressures to be approximately equal; amp draws are lower than normal.

∙If you discover that compressor rotation is reversed, correct it by switching any two main power leads into the disconnect switch or distribution block on the unit.

þOpen the 1” (approx. 25 mm) makeup water valve and allow the tank to fill until the automatic float valve shuts off. The float level should be adjusted so the standing water level is 8” (20 cm) from the top of the tank.

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SSC Series Central Chilling Stations

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Contents SSC Series Central Chilling Stations SSC Series Central Chilling Stations Safety Considerations Wear Safety Glasses and Work GlovesTable of Contents Startup Checklists Getting Started on the SSC Series Advanced TouchscreenCharts and Figures Introduction Necessary DocumentsStandard Features Models CoveredStandard Features on Remote Condensers Available OptionsModel Number Nomeclature Typical Two-Circuit 60-100 Ton Water Cooled Chiller Model SSCW-xxxCooling Capacity tons @ 50F 10 C LWT 73.1 81.4 Typical Two-Circuit 60-100 Ton Remote Air Cooled Chiller Model SSCR-xxxSscr Series Remote Condenser Models Unpacking and Inspection Event of Shipping DamagesIf the Shipment is Not Complete If the Shipment is Not CorrectReturns Uncrating Your New Chiller SSC Series Central Chilling Stations 3Installation Installation Location ConsiderationsMaking Electrical Connections SSC Series Central Chilling Stations Piping Considerations Making Process Water ConnectionsAll Models Making Tank Piping Connections From ProcessWater Connection Sizing Considerations Galvanic Corrosion ConsiderationsWater Treatment Considerations Making Water-Cooled Condenser ConnectionsInstalling the Remote Air-Cooled Condenser Condenser WaterChecking Motor Direction CompressorSSC Series Central Chilling Stations Alarms StagingLead-Lag Compressors Lead-Lag PumpsChilled Water Circuit Refrigeration CircuitFreezestat Control Volume Freezing Protection CurveFlow Switch High Pressure CutoutLow Pressure Cutout Control Nipple Control ProbeChilled Water Manifold Condenser Water ManifoldSSC Series Central Chilling Stations Startup Checklists Water-Cooled SSC Series Startup ChecklistSSC Series Central Chilling Stations Remote Air-Cooled SSC Series Startup Checklist Water-Cooled SSC Series StartupSSC Series Central Chilling Stations Remote Air-Cooled SSC Series Startup Determining Flow Rate ShutdownSSC Series Central Chilling Stations SSC Series Central Chilling Stations Indicator Lights and Control Switches MMI Graphic Panel DevicesSSC Series Central Chilling Stations Using the Standard Touchscreen InterfaceTouchscreen Interface Introduction MMI Using the SSC Series Standard Touchscreen Interface SSC Series Standard Control PanelMain Menu Screen Viewing and Operating Chiller Compressors Viewing Compressor StatusCompressor Status Screen Chiller Configuration Screen Operating the chiller compressorsCompressor Enable Screen Compressor Lead/Lag ScreenViewing Compressor Run Times Compressor Run Time Display ScreenViewing and Operating Chiller Pumps Viewing Chiller Pump StatusPump Status Screen Pump Enables Screen Operating Chiller PumpsViewing Pump Run Times Pump Lead/Lag ScreenPump Run Time Display Screen Viewing Active Alarms and Handling Alarm Conditions Alarm Condition ScreenOr Death Viewing and Setting System Temperatures Setting System TemperaturesSSC Series Central Chilling Stations Using the Advanced Using the SSC Series Advanced Touchscreen Interface Main Menu Screen Viewing and Operating Chiller Compressors Chiller Status Screen Operating the chiller compressors Viewing Compressor Run Times Viewing and Operating Chiller Pumps Viewing Chiller Pump Status Operating Chiller Pumps Hourmeters Pump Run Time screen displays Viewing Active Alarms and Handling Alarm Conditions Alarm Condition Screen Or Death System Status Screen Temperature Input Display Screen Condenser Maintenance LubricationEvaporator Maintenance Pump Motor SealMakeup Valve Recommended Pump Tank Spare PartsPreventive Maintenance Service SSC Series Central Chilling Stations 10Troubleshooting Problem Possible Cause SolutionAllow time to cool and reset Verify proper rotation if Service Notes Index Water Treatment Service Notes Service Notes Service Notes Parts Department Sterling Th Street New Berlin, WI 262 641-8610 ∙ Fax 262