Manuals / Liebert / Household Appliance / Air Conditioner

Liebert 3000 installation manual DPN000226_Rev0

Models: 3000

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DPN000226_Rev0

Split System Models

Figure 29 5 ton centrifugal air cooled condensing unit dimensional data (con't.)

Field Supplied Unit Disconnect

Switch when Factory Unit

Disconnect Switch is not Supplied.

Electric service not by Liebert

Optional Factory Installed

Disconnect Switch

AIR COOLED

Line Voltage Electric Power

Connection terminal for field Supply Conduit Voltage supplied earth grounding wire

Removable Access Panels

Field Supplied 24V NEC Class 2 wiring between condensing unit and fan/coil unit

NOTES:

DPN000226_Rev0

Low voltage electric power supply conduit entrance

Heat rejection connection. Field-supplied 24V NEC Class 2 wiring. See Note 2. Wire connections from evaporator module.

1.24V GND

2.24V supply

3.High pressure alarm (optional)

4.Hot gas bypass connection (only on units with hot gas bypass)

1.Refer to specification sheet for full load amp and wire size amp ratings.

2.Control voltage wiring must be a minimum of 16 GA (1.6mm) for up to 75’ (23m) or not to exceed 1 volt drop in control line.

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Image 64

Liebert 3000 installation manual DPN000226_Rev0

Contents

Liebert Challenger Installation Manual- 3 &5 Tons,50& 60HzPage TABLE OF CONTENTS 6.0 CHILLED WATER MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIGURES TABLES 1.0INTRODUCTION 1.1.1Self Contained Systems Air Cooled ModelsWater Cooled Models Glycol Cooled Models2.0INSTALLATION 2.1Room Preparation2.2Equipment Inspection 2.3Location ConsiderationsUnit net weight Installation2.4.2Removal of Skid Figure 1 Removing Challenger from skidFigure 2 Upflow BU cabinet dimensions InstallationUNIT DIMENSIONAL DATA REAR VIEW rear return configurationUNIT DIMENSIONAL DATA FLOOR CUTOUT DIMENSIONSOPTIONAL FLOOR STAND DIMENSIONAL DATA Figure 3 Downflow BF cabinet dimensions2.5.1Drain Line 2.5Piping ConsiderationsPiping connection size Liquid Refrigerant Line Hot GasRefrigerant LineHotWater Return Hot Water SupplyHumidifierWater SupplyLine Suction Refrigerant LineCondensate Pump Line Condensate DrainCondenser SupplyLine Condenser Return LineHotWater Return HumidifierWater SupplyLinePiping outlet locations through Installation 4.Factory installed disconnect switch. Optional 5.Three phase electric service not by Liebert2.6Electrical Connections Figure 8 Electrical connections2.7Balancing the Air Distribution 2.7.1Under-FloorDischarge Systems2.7.3Plenum Installation 2.8Checklist for Completed Installation2.7.2Ducted Applications Installation 3.1Condenser Location 3.2Electrical Connections3.0AIR COOLED MODELS 3.2.1Line VoltageFigure 9 Air cooled condensers TableAir cooled condenser statistics Air Cooled Models3.3Refrigerant Piping Table 5 Recommended line sizes — OD copper inches3.4.1Materials Supplied TableEquivalent lengths feet for various pipe fittings TableDehydration/Leak Test Condenser Coil Schrader Valve Fusible Plug 3.4.3Charging Table 10 Refrigerant control settings psi kPa3.5.1Piping 3.5.2Materials Supplied Dehydration/Leak Test Table 11 Refrigerant control settings psi kPa3.5.4Charging SINGLE CIRCUIT SHOWN 4.2Condenser 4.1Piping Considerations4.0WATER COOLED MODELS Figure 12 Water cooled general arrangement Water Cooled ModelsAdjustment Figure 13 Johnson Controls valve adjustment4.3Water Regulating Valve Manual Flushing4.3.3Testing Valve Function Figure 14 Metrex Valve adjustmentTable 12 Refrigerant control settings psi kPa Manual Flushing5.2Drycooler Installation 5.1Drycooler Location5.3Electrical Connections 5.0GLYCOL/GLYCOOL COOLED MODELSTable 13 Room dew point temperatures 5.4 Glycol Piping5.5.1 Preparing the System for Filling 5.5Filling InstructionsTable 5.5.2Glycol Solutions Table 16 Ethylene glycol concentrations5.5.3Filling the System Figure 15 Drycoolers and pump packages 1.Single pump packages are 17-1/4438 mm wide. Dual pump packages ar 32-1/4819 mm wideTable 17 Mounting hole dimensional data Figure 16 Pump packages—expansiontankTable 18 Drycooler data Table 19 Glycol pump dataExpansion Tank Field Installed at Figure 18 GLYCOOL general arrangement Glycol/GLYCOOL Cooled Models5.7.3Testing Valve Function Table 20 Refrigerant control settings psi kPa5.6Condenser 5.7Glycol Regulating Valve6.1Piping Considerations 6.0CHILLED WATER MODELS3-WAYVALVE 2-WAYVALVE3-WAYVALVE 2-WAYVALVE7.0SPLIT SYSTEM MODELS 7.1.1Air Cooled Condensing Units7.1.2Water/Glycol Cooled Condensing Units 7.2.1Line Voltage7.3Piping Considerations 7.3.1 Refrigerant LoopTable 21 Unit refrigerant charge Table 24 Line coupling sizesFigure 21 Refrigerant piping diagram Split System Models7.3.2Quick Connect Fittings 7.4Outdoor Air Cooled Condensing Units UNIT DIMENSIONS See TableSplit System Models Model Numbers FOOTPRINT DIMENSIONS UNIT DIMENSIONSINTAKE see TableSplit System Models PIPING & ELECTRICAL CONNECTIONS see TableModel Numbers SL-11081PG 8A 7.5Centrifugal Air Cooled Condensing Units 7.5.1Installing the Indoor Condensing UnitTable 30 Indoor centrifugal condensing unit Figure 25 Detail of ceiling hanging bracket Split System Models3/8 threaded rod field-supplied 3/8 hex nut 3/8 washer Sleeve Isolator 3/8 fender washer7.5.2Ducting Table 31 Airflow CFM CMHDIMENSIONAL DATA PIPING CONNECTIONSDPN000207_Rev0 Split System Models1 5/8 DPN000226_Rev0 AIR COOLED WATER COOLEDGLYCOL COOLED Figure 30 Split systems general arrangement7.6.1Piping Considerations 7.6.2Condenser Water Requirements7.6.3Regulating Valve 7.6.4Glycol SystemsDIMENSIONAL DATA PIPING CONNECTIONSDPN000209_Rev0 Split System Models32 812.8mm CABINET DIMENSION DPN000228_Rev0 Split System Models8.0R407C REFRIGERANT R407C Refrigerant8.1Calculating Subcooling ExampleNotes R407C RefrigerantR407C Refrigerant Page Ensuring The High Availability 0f Mission-CriticalData And Applicationsthat from