SterlingTEK A0551797 manual Piping Considerations, Making Process Water Connections, All Models

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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 it is run longer in this mode.

∙Reverse rotation can cause suction and discharge pressures to be approximately equal; amp draws will be 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.

Check your work and proceed to the following Piping Considerations section.

3-3 Piping Considerations

Piping systems vary with process application and pump tank configuration. Typical system configuration drawings are provided in this manual; the details may or may not apply to your application. Piping systems must be designed by a person knowledgeable in piping system design and configuration. Sterling’s Contracting Department can design and install a piping system tailored to your process.

∙All piping returning to the pump tank must be equipped with an inverted trap with a vacuum breaker at the high point of the system to prevent mains from siphoning into the pump tank.

∙Run mains full size in order to reduce pressure drop in the system and provide maximum pressures at the ends of the mains.

3-4 Making Process Water Connections

All Models

All SSC Series chilling stations have two chilled water connections per unit, and on water-cooled models, one more set of water connections for condenser water:

SSC Series Central Chilling Stations

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Contents SSC Series Central Chilling Stations SSC Series Central Chilling Stations Wear Safety Glasses and Work Gloves Safety ConsiderationsTable of Contents Getting Started on the SSC Series Advanced Touchscreen Startup ChecklistsCharts and Figures Necessary Documents IntroductionModels Covered Standard FeaturesAvailable Options Standard Features on Remote CondensersModel Number Nomeclature Model SSCW-xxx Typical Two-Circuit 60-100 Ton Water Cooled ChillerCooling Capacity tons @ 50F 10 C LWT 73.1 81.4 Model SSCR-xxx Typical Two-Circuit 60-100 Ton Remote Air Cooled ChillerSscr Series Remote Condenser Models Event of Shipping Damages Unpacking and InspectionIf 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 From Process Making Tank Piping ConnectionsGalvanic Corrosion Considerations Water Connection Sizing ConsiderationsWater Treatment Considerations Making Water-Cooled Condenser ConnectionsCondenser Water Installing the Remote Air-Cooled CondenserCompressor Checking Motor DirectionSSC Series Central Chilling Stations Staging AlarmsLead-Lag Compressors Lead-Lag PumpsChilled Water Circuit Refrigeration CircuitFreezestat Control Freezing Protection Curve VolumeFlow Switch High Pressure CutoutLow Pressure Cutout Control Probe Control NippleChilled Water Manifold Condenser Water ManifoldSSC Series Central Chilling Stations Water-Cooled SSC Series Startup Checklist Startup ChecklistsSSC Series Central Chilling Stations Water-Cooled SSC Series Startup Remote Air-Cooled SSC Series Startup ChecklistSSC Series Central Chilling Stations Remote Air-Cooled SSC Series Startup Shutdown Determining Flow RateSSC Series Central Chilling Stations SSC Series Central Chilling Stations Graphic Panel Devices Indicator Lights and Control Switches MMISSC Series Central Chilling Stations Using the Standard Touchscreen InterfaceTouchscreen Interface Introduction MMI SSC Series Standard Control Panel Using the SSC Series Standard Touchscreen InterfaceMain Menu Screen Viewing and Operating Chiller Compressors Viewing Compressor StatusCompressor Status Screen Operating the chiller compressors Chiller Configuration ScreenCompressor Lead/Lag Screen Compressor Enable ScreenCompressor Run Time Display Screen Viewing Compressor Run TimesViewing and Operating Chiller Pumps Viewing Chiller Pump StatusPump Status Screen Operating Chiller Pumps Pump Enables ScreenViewing Pump Run Times Pump Lead/Lag ScreenPump Run Time Display Screen Alarm Condition Screen Viewing Active Alarms and Handling Alarm ConditionsOr Death Setting System Temperatures Viewing and 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 Lubrication Condenser MaintenancePump Motor Seal Evaporator MaintenanceMakeup Valve Recommended Pump Tank Spare PartsPreventive Maintenance Service SSC Series Central Chilling Stations Problem Possible Cause Solution 10TroubleshootingAllow time to cool and reset Verify proper rotation if Service Notes Index Water Treatment Service Notes Service Notes Service Notes Sterling Th Street New Berlin, WI 262 641-8610 ∙ Fax 262 Parts Department