SterlingTEK A0551797 manual Models Covered, Standard Features

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1-3 Models Covered

This manual provides operation, installation, and maintenance instructions for the SSC Series central chilling stations.

Model numbers are listed on the serial tag. A model number followed by Q indicates a specially constructed unit, and not all information in this manual may apply. Make sure that you know the model number, serial number, and operating voltage of your chiller if you contact Sterling.

1-4 Standard Features

∙Two independent refrigeration circuits

∙High-efficiency scroll compressors

∙Stainless steel brazed plate evaporators

∙Cleanable shell and tube condensers (water-cooled models)

∙Two-way water regulating valve (water-cooled models)

∙2 remote single circuit condensers with variable speed lead fans and fan cycling (air-cooled models)

∙NEMA 12 electrical enclosure

∙Allen Bradley Micrologix 1500 PLC control with PanelView 300 Micro monochrome/key pad interface

∙High and low refrigerant pressure safeties

∙Touch-safe branch circuit fusing

∙Evaporator water piping manifold (Condenser manifold optional)

∙HCFC-22 refrigerant

∙Digital low temperature freezestat

∙Liquid line solenoid and shut-off valves

∙Chilled water flow switches

∙Auto/Manual control mode switch for emergency operation

∙1 year warranty on parts and labor

∙3 year warranty on controller

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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 DamagesReturns If the Shipment is Not CompleteIf the Shipment is Not Correct Uncrating Your New Chiller SSC Series Central Chilling Stations Making Electrical Connections 3InstallationInstallation Location Considerations SSC Series Central Chilling Stations All Models Piping ConsiderationsMaking Process Water Connections 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 PumpsFreezestat Control Chilled Water CircuitRefrigeration Circuit Volume Freezing Protection CurveLow Pressure Cutout Flow SwitchHigh 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 Touchscreen Interface Introduction MMI Using the StandardTouchscreen Interface Using the SSC Series Standard Touchscreen Interface SSC Series Standard Control PanelMain Menu Screen Compressor Status Screen Viewing and Operating Chiller CompressorsViewing Compressor Status Chiller Configuration Screen Operating the chiller compressorsCompressor Enable Screen Compressor Lead/Lag ScreenViewing Compressor Run Times Compressor Run Time Display ScreenPump Status Screen Viewing and Operating Chiller PumpsViewing Chiller Pump Status Pump Enables Screen Operating Chiller PumpsPump Run Time Display Screen Viewing Pump Run TimesPump Lead/Lag 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