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Liebert DS user manual Air-Cooled Condenser / Drycooler, Glycol Pump

Models: DS

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Air-Cooled Condenser / Drycooler

HVAC Maintenance Checklist

Air-Cooled Condenser / Drycooler

___ 1.	Coil clean
___ 2.	Motor mounts tight
___ 3.	Bearings in good condition (motor)
___ 4.	Piping support/clamps secure
___ 5.	Check wire connections
___ 6.	Stat settings
___ 7.	Refrigerant level (Lee-Temp)
___ 8.	Glycol level
___ 9.	Glycol solution___________________________ %
___ 10.	Fan speed control operation
___ 11.	Motor amp draw
	#1	L1		L2		L3

			(L1 and L2 on Fan Speed Control Motor)
	#2	L1		L2		L3

	#3	L1		L2		L3

	#4	L1		L2		L3

	#5	L1		L2		L3

	#6	L1		L2		L3

	#7	L1		L2		L3

	#8	L1		L2		L3

	#9	L1		L2		L3

	#10	L1		L2		L3

Glycol Pump

___ 1. Check pump rotation

___ 2. Check for glycol leaks

___ 3. Pump pressures

#1	Suction		Discharge
#2	Suction		Discharge
#3	Suction		Discharge
#3	Suction		Discharge

___ 4. Amp Draw

#1	L1		L2		L3
#2	L1		L2		L3
#3	L1		L2		L3
#3	L1		L2		L3

___ 5. Pump changeover (if multiple pumps)

Notes _______________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

Signature ___________________________________________________________________________________

Company ____________________________________________________________________________________

Make photocopies for your records. Compare readings / information to previous maintenance work- sheet. To locate your local Emerson representative for Liebert-engineered parts, check the Liebert Web site: www.liebert.com or call 1-800-LIEBERT.

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Liebert DS user manual Air-Cooled Condenser / Drycooler, Glycol Pump

Contents

For Business-Critical Continuity Liebert DSUser Manual 28-105kW, 8-30 Tons, Upflow and Downflow, 50/60Hz Page 3.0 PRE-INSTALLATION GUIDELINES TABLE OF CONTENTS1.0 LIEBERT DS COMPONENTS AND NOMENCLATURE 2.0 COOLING CONFIGURATIONS SAFETY INFORMATION8.0 PIPING 12.0 MAINTENANCE7.0 ELECTRICAL CONNECTIONS 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 SAVE THESE INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONSRisk of leaking water. Can cause equipment and building damage Risk of high-speed moving parts. Can cause injury or deathRisk of contact with hot surfaces. Can cause injury 1.0 LIEBERT DS COMPONENTS AND NOMENCLATURE Figure 1 Downflow model component locationsFigure 2 Upflow model component locations Liebert DS Components and Nomenclature Configuration5 A U A Air DistributionAir-Cooled 2.0 COOLING CONFIGURATIONSCooling Configurations Glycol-Cooled3.2 Air Distribution-Downflow Units 3.0 PRE-INSTALLATION GUIDELINES3.1 Room Preparation Figure 5 Upflow ducting configurations 3.3 Air Distribution-Upflow Units3.4 Connections and System Setup 3.5 Operating ConditionsDownflow Unit Weight, lb 4.0 LIEBERT DS DIMENSIONS AND WEIGHTSLiebert DS Dimensions and Weights Upflow Unit Weight, lbTop View Front ViewTop View Top View Front View2350 DPN000924 RevAir-Cooled 2400Figure 10 Cabinet and floor planning dimensions-downflow, air-cooled, 53-77kW 15-22 ton, scroll compressor models Front ViewTOP VIEW FRONT VIEWFront View Weights for downflow, air-Cooled, 105kW 30 ton, all compressor modelsTop View Front View Figure 13 Cabinet and floor planning dimensions-downflow, water/glycol/GLYCOOL, 105kW 30 ton, all compressor modelsTop View Front View Figure 14 Cabinet and floor planning dimensions-upflow, air-cooled 28-42kW 8-12 ton, semi-hermetic compressor modelsTop View Figure 15 Cabinet and floor planning dimensions-upflow, air-cooled 28-42kW 8-12 ton, scroll or digital scroll compressor models FRONT VIEW 838mm Top ViewFront View Front View Figure 18 Cabinet and floor planning dimensions-upflow, air-cooled, 53-77kW 15-22 ton, scroll or digital scroll compressor modelsTop View Front View Dry Weight, Approximate, lb kg Table 17 Weights-upflow, air-cooled, 105kW 30 ton, allLiebert DS Dimensions and Weights TOP VIEWFRONT VIEW Liebert DS Dimensions and WeightsTOP VIEW ModelModel Liebert DS Dimensions and WeightsDimensions, in. mm Height, in. mmModel Liebert DS Dimensions and WeightsDimensions, in. mm Height, in. mmHeight, in. mm Figure 24 Floor stand dimensions-downflow, 105kW 30 ton modelsLiebert DS Dimensions and Weights D turning vaneBlower Outlet Location - Top View Figure 25 Blower outlet and deck dimensions-upflow, 28-42kW 8-12 tonTable 22 Dimensions for upflow, 28-42kW 8-12 ton Top of UnitBlower outlet and deck dimensions-upflow, 53-77kW 15-22 ton 1-1/2 38mm Figure 27 Blower outlet and deck dimensions-upflow 105kW 30tonTable 24 Blower outlet and deck dimensions-upflow 105kW 30ton DPN001196 Rev Figure 28 Rear return filter box dimensionsTable 25 Rear return filter box dimensions Check One Figure 29 Upflow unit plenum dimensionsTable 26 Upflow unit plenum dimensions Side View - Unit5.0 EQUIPMENT INSPECTION AND HANDLING SAFETY INFORMATION5.1 Packaging Material Spreader Bars and Slings ForkliftPallet Jack5.2.1 Removing the Unit from the Skid With a Forklift Figure 32 Remove the unit from the skid5.2.3 Removing Piano Jacks 5.2.2 Moving the Unit to the Installation Location with Piano JacksFigure 33 Moving the unit to its installation location 5.2.4 Removing Liebert DS from Skid Using Rigging LiftingLifting Figure 35 Using rigging to lift Liebert DS off skidLifting SlingDETAIL A 5.3 Semi-Hermetic Compressor Spring Isolation System5.4 Placing the Unit on a Floor Stand 6.0 DISASSEMBLING THE LIEBERT DS FOR TRANSPORT 6.2 Disassembly-Downflow Units6.1 Required Equipment 12. Condensate Pump-Optional Component 10. Reheat-Optional Component11. Humidifier-Optional Component 13. GLYCOOL/Dual-Cool-Optional ComponentEmerson recommends using piano jacks when moving this section 6.2.1 Remove the Compressor Assembly6.2.2 Remove the Filter and Electric Box Assembly Emerson does not recommend unsweating refrigerant connections6.3 Reassembly-Downflow Units 6.3.1 Reconnecting Piping, Charging and Replacing Panels6.4 Reassembly Checklist Blower & Coil Assembly Compressor AssemblyFilter & Electric Box 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 1509mm 940mmFigure 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 6.5 Disassembly-Upflow Units Emerson does not recommend unsweating refrigerant connectionsEmerson recommends using piano jacks when moving this section 6.5.1 Remove Compressor Assembly6.5.2 Remove Blower and Electric Box Assembly 6.6 Reassembly-Upflow Unit 6.7 Reassembly ChecklistFigure 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 108 2743mm Assembled Length 660mm2083mm 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 7.0 ELECTRICAL CONNECTIONS Electrical ConnectionsA B C D DOWNFLOW LOW VOLT SECTIONElectrical Connections OVERLOAD PROTECTORS7.1 Electrical Field Connection Descriptions 12. Factory installed disconnect switch13. Secondary disconnect switch and earth ground Standard Electrical ConnectionsOptional Low Voltage Terminal Package Connections 8.0 PIPING 8.1.1 Condensate Piping-Field-Installed8.1 Fluid Connections Gravity DrainINCORRECT DPN001556 CORRECTINCORRECT DOWNFLOW DS UNITGeneral Guidelines 8.1.3 Requirements of Systems Using Water or Glycol8.1.2 Humidifier Supply Water-Optional Infrared 8.2 Refrigeration Piping Leak Checking of Unit and Field Piping8.2.1 Piping Guidelines-Air-Cooled Units 11.7 Fan Speed Control Piping 8.3 Dehydration/Leak Test and Charging Procedures for R-407C and R-22Fan Speed Control Leak Check and Evacuation Procedure Fan Speed Control Materials SuppliedTable 49 Fan speed suction pressure transducer settings Fan Speed ChargingLee-Temp Controlled Materials Supplied Lee-Temp Leak Check and Evacuation ProcedureLee-Temp Piping Lee-Temp Receiver Refrigerant Level Table 50 Lee-Temp suction pressure transducer settingsLee-Temp Charging Sight Glass LevelsLee-Temp 9.0 PIPING SCHEMATICSValve Liquid Return LiquidFan Speed Liquid ReturnLee-Temp LiquidFor systems with drycoolers Piping schematic-water/glycol, semi-hermetic compressor modelsrefer to 12.11.3 - Drycooler Settings Liebert DS UnitFor systems with drycoolers refer to 12.11.3 - Drycooler Settings Figure 60 Piping schematic-water/glycol with scroll compressor modelsPiping Schematics LIEBERTFor systems with drycoolers refer to 12.11.3 - Drycooler Settings Figure 61 Piping schematic-GLYCOOL semi-hermetic compressor modelsPiping Schematics LIEBERTFor systems with drycoolers refer to 12.11.3 - Drycooler Settings Figure 62 Piping schematic-GLYCOOL with scroll compressor modelsPiping Schematics LIEBERTLIEBERT Piping SchematicsCUSTOMER HEAT REJECTION HEAT REJECTIONHEAT REJECTION Piping SchematicsLIEBERT LIEBERT DS UNIT and associated pipingFigure 65 Optional piping schematic for Econ-O-Coil DPN000805 RevFRONT OF UNIT Front ViewSection A-A DPN000803Note Drawing not to scale E1 E2 Point Piping SchematicsConnection Size / Opening DescriptionPoint Piping SchematicsConnection Size / Opening Description408mm DPN00093316-1/16 LV1 LV2 LV3 HUM E1 E2 Front of UnitDPN001014 Rev 14-1/2 Point Piping SchematicsConnection Size / Opening DescriptionConnection Size / Opening Piping SchematicsFRONT SECTION VIEW PointTop View of Unit Piping SchematicsLeft Side Section View Front Section ViewFRONT SECTION VIEW OF UNIT Piping SchematicsTOP VIEW OF UNIT Left Front Panel Not ShownConnection Size / Opening Piping SchematicsFront Section View PointTop View Piping Schematics2. Tolerance on all piping dimensions is ±1/2 13mm Left Side Section ViewLEFT SIDE SECTION VIEW OF UNIT Piping SchematicsTOP VIEW OF UNIT FRONT SECTION VIEW OF UNITFigure 81 Primary connection locations-upflow, water/glycol/GLYCOOL, 105kW 30 ton, all 10.2 Electrical 10.0 CHECKLIST FOR COMPLETED INSTALLATION10.1 Moving and Placing Equipment 10.3 PipingPage 11.2 Startup Checks Inspection With Panels Removed and Disconnect Off 11.3 Commissioning Procedure With Panels On Return Completed Startup Form to Your Local Emerson Sales Office12.0 MAINTENANCE 12.1 Filters12.2 Blower Drive System 12.1.1 Filter Replacement Procedure-Downflow Units12.1.2 Filter Replacement Procedure-Upflow Units Do Not UseFigure 83 Upflow motor access 12.2.1 Upflow Motor Access12.2.3 Belt Installation and Tensioning 12.2.2 Belt RemovalBlower Bearing Inspection Blower Bearing MaintenanceBlower Bearing Replacement Blower Motor12.3 Humidifier Correct Switch Orientation Incorrect Switch Orientation12.3.2 Cleaning Humidifier Pan and Float Switch 12.3.1 Infrared Humidifier12.4.1 Condensate Drain 12.4 Condensate Drain and Condensate Pump Systems12.3.3 Changing Humidifier Lamps 12.4.2 Condensate Pump12.7 Compressor 12.5 Air-Cooled Condenser and Drycoolers12.6 Reheat-Electric Reheat Three-Stage and SCR 12.7.1 Compressor Oil12.8.3 Compressor Replacement Procedure 12.8 Compressor Replacement12.9 Facility Fluid and Piping Maintenance 12.8.1 Compressor Motor Burnout12.10 Paradenser-Water-Cooled Condenser 12.10.1 Cleaning InstructionsAdjustment-Johnson Controls/Penn Johnson Valves 12.11 Water/Glycol Control ValvesLocation Testing Function of ValveAdjustment 12.11.2Motor Ball Valve-Digital Scroll CompressorsTable 59 Aquastat settings-six-fan drycoolers 12.11.3Drycooler SettingsTable 58 Aquastat settings-two-fan through four-fan drycoolers Table 60 Aquastat settings-eight-fan drycoolersBlower Section 13.0 HVAC MAINTENANCE CHECKLISTFilters ReheatWater-Cooled Condensers Condensate PumpRefrigeration Piping Compressor SectionAir-Cooled Condenser / Drycooler Glycol PumpPage Ensuring The High Availability Of Mission-Critical Data And Applications