Liebert Challenger 3000 with iCOM

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1.1.3 Split SystemsIntroductionEach air-cooled split system consists of an evaporator section and one of the following condensingunits.Prop Fan Air-CooledProp Fan units include scroll compressor, condenser coil, prop fan, high pressure switch, hot gasbypass and Liebert Lee-Temp head pressure control. Unit is designed for outdoor location.Centrifugal Fan Air-CooledCentrifugal Fan units include scroll compressor, condenser coil, centrifugal blower assembly,high-pressure switch, hot gas bypass and Liebert Lee-Temp head pressure control. Unit must bemounted indoors. Duct flanges are optional.Water-CooledEach water-cooled split system consists of an evaporator section and a water/glycol condensing unit,which includes scroll compressor, coaxial condenser, water regulating valve, hot gas bypass andhigh-pressure switch. Design pressure is 150 psi (1034 kPa) as standard and 350 psi (2413 kPa) asoptional.Glycol-CooledEach glycol-cooled split system consists of an evaporator section, a water/glycol condensing unit (asdescribed above), a pump package, and a 95°F (35°C) design ambient drycooler.4
Installation (Applicable to all Models)2.0 INSTALLATION (APPLICABLE TO ALL MODELS)2.1 Room PreparationThe room should be well insulated and must have a sealed vapor barrier. The vapor barrier in theceiling can be a polyethylene film type. Use a rubber or plastic base paint on concrete walls and floors.Doors should not be undercut or have grilles in them.Outside (or fresh) air should be kept to an absolute minimum. Outside air adds to the heating,cooling, humidifying and dehumidifying loads of the site. It is recommended that outside air be keptbelow 5% of the total air circulated in the room and be preconditioned.2.2 Equipment InspectionUpon arrival of the unit, inspect all items for visible and concealed damage. Damage should beimmediately reported to the carrier and a damage claim filed with a copy sent to Liebert or to yoursales representative.2.3 Location ConsiderationsThe unit can sit on top of an accessible elevated flooring system. It may be necessary to furnishadditional pedestal support below the unit to ensure maximum structural support (see Table 1). Aseparate floor stand for the unit may be used as support, independent of the elevated floor andinstalled prior to the flooring system.Provide approximately 34" (864 mm) service clearance on the front of the unit.NOTEGLYCOOL units require 34" (864 mm) service clearance on the right side of the unit inaddition to front service clearance.Avoid placing units in an alcove or at the extreme end of a room that has a high aspect ratio (long,narrow room). Ducted units can be placed in room corners or ends as long as front access ismaintained. Placing units too close together will reduce the effectiveness of the air distribution.NOTELocate and remove shipping screw on fan motor base.2.4 Equipment Handling! WARNINGRisk of top-heavy unit falling over. Improper handling can cause equipment damage, injury ordeath.Read all of the following instructions before attempting to move, lift, remove packaging fromor preparing unit for installation.The instructions below are to be adhered to when handling this unit with or without the skid.There is the potential for this unit to tip over if it is handled improperly.5
Page 1: Precision CoolingFor Business-Criti
Page 5 and 6: 7.5 Centrifugal Air-Cooled Condensi
Page 7 and 8: IMPORTANT SAFETY INSTRUCTIONSSAVE T
Page 9: Introduction1.0 INTRODUCTION1.1 Sys
Page 13 and 14: Installation (Applicable to all Mod
Page 23 and 24: Figure 11 Piping connections for ch
Page 29 and 30: 3.0 AIR-COOLED MODELS—SELF-CONTAI
Page 31 and 32: Air-Cooled Models—Self-Contained
Page 39 and 40: Figure 17 General arrangement—Air
Page 41 and 42: 4.0 WATER-COOLED MODELS—SELF-CONT
Page 43 and 44: Figure 20 General arrangement diagr
Page 45 and 46: Water-Cooled Models—Self-Containe
Page 47 and 48: Glycol/GLYCOOL-Cooled Models—Self
Page 49 and 50: NOTICEGlycol/GLYCOOL-Cooled Models
Page 51 and 52: 5.5.2 Glycol SolutionsGlycol/GLYCOO
Page 57 and 58: Figure 27 General arrangement—GLY
Page 59 and 60: 5.5.4 Motor Ball Valve—Digital Sc
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Chilled Water ModelsFigure 30 Chill
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7.2.2 Low VoltageSplit System Model
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Split System ModelsTable 24 Line co
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Table 26Horizontal air discharge ca
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Table 28Split System ModelsCabinet
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Split System Models7.5 Centrifugal
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Figure 36 3-ton centrifugal air-coo
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Split System ModelsFigure 38 5-ton
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Split System ModelsFigure 40 Split
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7.6.4 Glycol SystemsSplit System Mo
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Split System ModelsFigure 43 5-ton
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R407C Refrigerant8.0 R407C REFRIGER
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R407C RefrigerantNOTES79
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Ensuring The High AvailabilityOf Mi
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Liebert Challenger 3000 with iCOM

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