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Liebert user manual Liebert DS, User Manual 28-105kW, 8-30 Tons, Upflow and Downflow, 50/60Hz

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For Business-Critical Continuity™

Precision Cooling

For Business-Critical Continuity™

Liebert® DS™

User Manual

28-105kW,8-30 Tons, Upflow and Downflow, 50/60Hz

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Liebert user manual Liebert DS, User Manual 28-105kW, 8-30 Tons, Upflow and Downflow, 50/60Hz

Contents

User Manual 28-105kW, 8-30 Tons, Upflow and Downflow, 50/60Hz Liebert DSFor Business-Critical Continuity Page 1.0 LIEBERT DS COMPONENTS AND NOMENCLATURE 2.0 COOLING CONFIGURATIONS TABLE OF CONTENTS3.0 PRE-INSTALLATION GUIDELINES SAFETY INFORMATION7.0 ELECTRICAL CONNECTIONS 12.0 MAINTENANCE8.0 PIPING 13.0 HVAC MAINTENANCE CHECKLIST FIGURES compressor models all compressor models TABLES Table 43 Component weights-upflow, air-cooled, 105kW 30 ton, scroll/digital scroll compressor models IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONSRisk of contact with hot surfaces. Can cause injury Risk of high-speed moving parts. Can cause injury or deathRisk of leaking water. Can cause equipment and building damage Figure 1 Downflow model component locations 1.0 LIEBERT DS COMPONENTS AND NOMENCLATUREFigure 2 Upflow model component locations 5 A U A ConfigurationLiebert DS Components and Nomenclature Air DistributionCooling Configurations 2.0 COOLING CONFIGURATIONSAir-Cooled Glycol-Cooled3.1 Room Preparation 3.0 PRE-INSTALLATION GUIDELINES3.2 Air Distribution-Downflow Units 3.3 Air Distribution-Upflow Units Figure 5 Upflow ducting configurations3.5 Operating Conditions 3.4 Connections and System SetupLiebert DS Dimensions and Weights 4.0 LIEBERT DS DIMENSIONS AND WEIGHTSDownflow Unit Weight, lb Upflow Unit Weight, lbFront View Top ViewTop View Front View Top ViewAir-Cooled DPN000924 Rev2350 2400Front View Figure 10 Cabinet and floor planning dimensions-downflow, air-cooled, 53-77kW 15-22 ton, scroll compressor modelsFRONT VIEW TOP VIEWTop View Weights for downflow, air-Cooled, 105kW 30 ton, all compressor modelsFront View Top View Figure 13 Cabinet and floor planning dimensions-downflow, water/glycol/GLYCOOL, 105kW 30 ton, all compressor modelsFront View Top View Figure 14 Cabinet and floor planning dimensions-upflow, air-cooled 28-42kW 8-12 ton, semi-hermetic compressor modelsFront View Figure 15 Cabinet and floor planning dimensions-upflow, air-cooled 28-42kW 8-12 ton, scroll or digital scroll compressor models FRONT VIEW Front View Top View838mm Top View Figure 18 Cabinet and floor planning dimensions-upflow, air-cooled, 53-77kW 15-22 ton, scroll or digital scroll compressor modelsFront View Front View Liebert DS Dimensions and Weights Table 17 Weights-upflow, air-cooled, 105kW 30 ton, allDry Weight, Approximate, lb kg TOP VIEWTOP VIEW Liebert DS Dimensions and WeightsFRONT VIEW ModelDimensions, in. mm Liebert DS Dimensions and WeightsModel Height, in. mmDimensions, in. mm Liebert DS Dimensions and WeightsModel Height, in. mmLiebert DS Dimensions and Weights Figure 24 Floor stand dimensions-downflow, 105kW 30 ton modelsHeight, in. mm D turning vaneTable 22 Dimensions for upflow, 28-42kW 8-12 ton Figure 25 Blower outlet and deck dimensions-upflow, 28-42kW 8-12 tonBlower Outlet Location - Top View Top of UnitBlower outlet and deck dimensions-upflow, 53-77kW 15-22 ton Table 24 Blower outlet and deck dimensions-upflow 105kW 30ton Figure 27 Blower outlet and deck dimensions-upflow 105kW 30ton1-1/2 38mm Table 25 Rear return filter box dimensions Figure 28 Rear return filter box dimensionsDPN001196 Rev Table 26 Upflow unit plenum dimensions Figure 29 Upflow unit plenum dimensionsCheck One Side View - Unit5.1 Packaging Material SAFETY INFORMATION5.0 EQUIPMENT INSPECTION AND HANDLING Pallet ForkliftSpreader Bars and Slings JackFigure 32 Remove the unit from the skid 5.2.1 Removing the Unit from the Skid With a ForkliftFigure 33 Moving the unit to its installation location 5.2.2 Moving the Unit to the Installation Location with Piano Jacks5.2.3 Removing Piano Jacks Lifting 5.2.4 Removing Liebert DS from Skid Using RiggingLifting Figure 35 Using rigging to lift Liebert DS off skidLifting Sling5.4 Placing the Unit on a Floor Stand 5.3 Semi-Hermetic Compressor Spring Isolation SystemDETAIL A 6.1 Required Equipment 6.2 Disassembly-Downflow Units6.0 DISASSEMBLING THE LIEBERT DS FOR TRANSPORT 11. Humidifier-Optional Component 10. Reheat-Optional Component12. Condensate Pump-Optional Component 13. GLYCOOL/Dual-Cool-Optional Component6.2.2 Remove the Filter and Electric Box Assembly 6.2.1 Remove the Compressor AssemblyEmerson recommends using piano jacks when moving this section Emerson does not recommend unsweating refrigerant connections6.3.1 Reconnecting Piping, Charging and Replacing Panels 6.3 Reassembly-Downflow Units6.4 Reassembly Checklist Filter & Electric Box Assembly Compressor AssemblyBlower & Coil Assembly 60-3/16Filter & Electric Box Assembly Figure 39 Component dimensions-downflow, water/glycol/GLYCOOL, 28-42kW 8-12 ton, all compressor models 59-7/16 1509mm 940mm 1509mmFigure 42 Component dimensions-downflow water/glycol, GLYCOOL, 53-77kW 15-22 ton, all compressor models Figure 43 Component dimensions-downflow, air-cooled, 105kW 30 ton, semi-hermetic compressor models See disassembly and handling instructions in installation manual Figure 45 Component dimensions-downflow, water/glycol/GLYCOOL, 105kW 30 ton, all compressor models Emerson does not recommend unsweating refrigerant connections 6.5 Disassembly-Upflow Units6.5.2 Remove Blower and Electric Box Assembly 6.5.1 Remove Compressor AssemblyEmerson recommends using piano jacks when moving this section 6.7 Reassembly Checklist 6.6 Reassembly-Upflow UnitFigure 46 Component dimensions-upflow, air-cooled, 28-42kW 8-12 ton, semi-hermetic compressor models Figure 47 Component dimensions-upflow, air-cooled, 28-42kW 8-12 ton, scroll/digital scroll compressor models Figure 48 Component dimensions-upflow, water/glycol/GLYCOOL, 28-42kW 8-12 ton, all compressor models 2083mm 660mm108 2743mm Assembled Length Figure 50 Component dimensions-upflow, air-cooled, 53-77kw 15-22 ton, scroll/digital scroll compressor models Figure 51 Component dimensions-upflow water/glycol/GLYCOOL 53-77kw 15-22 ton, all compressor models Figure 52 Component dimensions-upflow, air-cooled, 105kW 30 ton, semi-hermetic compressor models Figure 53 Component dimensions-upflow, air-cooled, 105kW 30 ton, scroll/digital scroll compressor models 31-1/4 794mm Electrical Connections 7.0 ELECTRICAL CONNECTIONSElectrical Connections DOWNFLOW LOW VOLT SECTIONA B C D OVERLOAD PROTECTORS13. Secondary disconnect switch and earth ground 12. Factory installed disconnect switch7.1 Electrical Field Connection Descriptions Standard Electrical ConnectionsOptional Low Voltage Terminal Package Connections 8.1 Fluid Connections 8.1.1 Condensate Piping-Field-Installed8.0 PIPING Gravity DrainINCORRECT CORRECTINCORRECT DPN001556 DOWNFLOW DS UNIT8.1.2 Humidifier Supply Water-Optional Infrared 8.1.3 Requirements of Systems Using Water or GlycolGeneral Guidelines Leak Checking of Unit and Field Piping 8.2 Refrigeration Piping8.2.1 Piping Guidelines-Air-Cooled Units 11.7 Fan Speed Control Leak Check and Evacuation Procedure 8.3 Dehydration/Leak Test and Charging Procedures for R-407C and R-22Fan Speed Control Piping Fan Speed Control Materials SuppliedFan Speed Charging Table 49 Fan speed suction pressure transducer settingsLee-Temp Piping Lee-Temp Leak Check and Evacuation ProcedureLee-Temp Controlled Materials Supplied Lee-Temp Charging Table 50 Lee-Temp suction pressure transducer settingsLee-Temp Receiver Refrigerant Level Sight Glass LevelsValve Liquid Return 9.0 PIPING SCHEMATICSLee-Temp LiquidLee-Temp Liquid ReturnFan Speed Liquidrefer to 12.11.3 - Drycooler Settings Piping schematic-water/glycol, semi-hermetic compressor modelsFor systems with drycoolers Liebert DS UnitPiping Schematics Figure 60 Piping schematic-water/glycol with scroll compressor modelsFor systems with drycoolers refer to 12.11.3 - Drycooler Settings LIEBERTPiping Schematics Figure 61 Piping schematic-GLYCOOL semi-hermetic compressor modelsFor systems with drycoolers refer to 12.11.3 - Drycooler Settings LIEBERTPiping Schematics Figure 62 Piping schematic-GLYCOOL with scroll compressor modelsFor systems with drycoolers refer to 12.11.3 - Drycooler Settings LIEBERTCUSTOMER HEAT REJECTION Piping SchematicsLIEBERT HEAT REJECTIONLIEBERT Piping SchematicsHEAT REJECTION LIEBERT DS UNIT and associated pipingDPN000805 Rev Figure 65 Optional piping schematic for Econ-O-CoilSection A-A Front ViewFRONT OF UNIT DPN000803Note Drawing not to scale E1 E2 Connection Size / Opening Piping SchematicsPoint DescriptionConnection Size / Opening Piping SchematicsPoint Description16-1/16 DPN000933408mm DPN001014 Rev HUM E1 E2 Front of UnitLV1 LV2 LV3 14-1/2 Connection Size / Opening Piping SchematicsPoint DescriptionFRONT SECTION VIEW Piping SchematicsConnection Size / Opening PointLeft Side Section View Piping SchematicsTop View of Unit Front Section ViewTOP VIEW OF UNIT Piping SchematicsFRONT SECTION VIEW OF UNIT Left Front Panel Not ShownFront Section View Piping SchematicsConnection Size / Opening Point2. Tolerance on all piping dimensions is ±1/2 13mm Piping SchematicsTop View Left Side Section ViewTOP VIEW OF UNIT Piping SchematicsLEFT SIDE SECTION VIEW OF UNIT FRONT SECTION VIEW OF UNITFigure 81 Primary connection locations-upflow, water/glycol/GLYCOOL, 105kW 30 ton, all 10.1 Moving and Placing Equipment 10.0 CHECKLIST FOR COMPLETED INSTALLATION10.2 Electrical 10.3 PipingPage 11.2 Startup Checks Inspection With Panels Removed and Disconnect Off Return Completed Startup Form to Your Local Emerson Sales Office 11.3 Commissioning Procedure With Panels On12.1 Filters 12.0 MAINTENANCE12.1.2 Filter Replacement Procedure-Upflow Units 12.1.1 Filter Replacement Procedure-Downflow Units12.2 Blower Drive System Do Not Use12.2.3 Belt Installation and Tensioning 12.2.1 Upflow Motor AccessFigure 83 Upflow motor access 12.2.2 Belt RemovalBlower Bearing Replacement Blower Bearing MaintenanceBlower Bearing Inspection Blower Motor12.3.2 Cleaning Humidifier Pan and Float Switch Correct Switch Orientation Incorrect Switch Orientation12.3 Humidifier 12.3.1 Infrared Humidifier12.3.3 Changing Humidifier Lamps 12.4 Condensate Drain and Condensate Pump Systems12.4.1 Condensate Drain 12.4.2 Condensate Pump12.6 Reheat-Electric Reheat Three-Stage and SCR 12.5 Air-Cooled Condenser and Drycoolers12.7 Compressor 12.7.1 Compressor Oil12.9 Facility Fluid and Piping Maintenance 12.8 Compressor Replacement12.8.3 Compressor Replacement Procedure 12.8.1 Compressor Motor BurnoutAdjustment-Johnson Controls/Penn Johnson Valves 12.10.1 Cleaning Instructions12.10 Paradenser-Water-Cooled Condenser 12.11 Water/Glycol Control ValvesAdjustment Testing Function of ValveLocation 12.11.2Motor Ball Valve-Digital Scroll CompressorsTable 58 Aquastat settings-two-fan through four-fan drycoolers 12.11.3Drycooler SettingsTable 59 Aquastat settings-six-fan drycoolers Table 60 Aquastat settings-eight-fan drycoolersFilters 13.0 HVAC MAINTENANCE CHECKLISTBlower Section ReheatRefrigeration Piping Condensate PumpWater-Cooled Condensers Compressor SectionGlycol Pump Air-Cooled Condenser / DrycoolerPage Of Mission-Critical Data And Applications Ensuring The High Availability