Liebert Challenger 3000 with iCOM

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Split System ModelsFigure 35 Detail of ceiling hanging bracket3/8" threaded rod(field-supplied)3/8" hex nut3/8" washerSleeveIsolator3/8" fender washer3/8" hex nut3/8" hex nutNylockUnit base pan (ref)7.5.2 DuctingThe total external static pressure for the inlet and outlet ducts, including grille, must not exceed0.5 inches of H 2 O. Hood intake dimensions should be the same as the condensing unit ductdimensions.If the condensing unit is located close to the outside of the building, rain hoods must be installed. Inaddition, install a triple layer bird screen over rain hood openings to eliminate the possibility ofinsects, birds, water, or debris entering the unit.Use flexible ductwork or nonflammable cloth collars to attach ductwork to the unit and to controlvibration transmission to the building. Attach the ductwork to the unit using the flanges provided.Locate the unit and ductwork so that the return air does not short circuit to the supply air inlet.Avoid directing the hot exhaust air toward adjacent doors or windows.Normal operating sound may be objectionable if the condensing unit is placed directly over quiet workareas. Ductwork that runs through a conditioned space or is exposed to areas where condensationmay occur must be insulated. Whenever possible, ductwork should be suspended using flexiblehangers. Ductwork should not be fastened directly to the building structure. In applications wherethe ceiling plenum is used as the heat rejection domain, the discharge air must be directed away fromthe condensing unit air inlet and a screen must be added to the end of the discharge duct to protectservice personnel.For multiple unit installations, space the units so that the hot condensing unit exhaust air is notdirected toward the air inlet of an adjacent unit.Table 31 Airflow CFM (CMH)3-Ton5-Ton60 Hz 2000 (3398) 3500 (5947)50 Hz 1650 (2800) 3500 (5947)66
Figure 36 3-ton centrifugal air-cooled condensing unit dimensional data & piping connectionsSplit System Models50-1/4" (1276mm)Overall Dimension46-1/2" (1181mm)Cabinet Dimension48-1/4" (1225mm)Threaded Rod Centers22-3/4" (578mm)Overall Dimension21-1/2" (546mm)Cabinet Dimension19-1/2" (495mm)Threaded RodCentersCustomer-suppliedthreaded rods for module supportfrom ceiling (typ. 4)C20-3/4"(527mm)22-1/2"(572mm)CabinetDimensionHoles for ModuleRigging (typ. 2 each end)Integral HangingBracketMinimum Clearance 33" (838mm)This End for ComponentAccessand Removal7/8" (22.2mm) Dia.Electrical Entrancefor Line-VoltageConnection7/8" (22.2mm) Dia.Electrical Entrancefor Low-VoltageConnection20-7/16"(519mm)Coil InletDuctConn.1/2" (13mm)1"(25.4mm)2-1/4"(57mm)DIMENSIONAL DATA30-1/8"(765mm)Coil InletDuct ConnectionDuct FlangeNote:Unit is evenly spaced inreference to threaded for centers.DAir OutletDuct ConnectionAir OutletBDuct DimensionABlower Motor Service AccessPanel on Bottom of UnitMinimum Clearance 33" (838mm)for Component Access and Removal.Suction LineMale QuickConnectLiquid LineMale QuickConnectPIPING CONNECTIONSSL-11085 Pg. 467
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Precision CoolingFor Business-Criti
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7.5 Centrifugal Air-Cooled Condensi
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IMPORTANT SAFETY INSTRUCTIONSSAVE T
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Introduction1.0 INTRODUCTION1.1 Sys
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Installation (Applicable to all Mod
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Page 21 and 22: 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
Page 61 and 62: Chilled Water ModelsFigure 30 Chill
Page 63 and 64: 7.2.2 Low VoltageSplit System Model
Page 65 and 66: Split System ModelsTable 24 Line co
Page 67 and 68: Table 26Horizontal air discharge ca
Page 69 and 70: Table 28Split System ModelsCabinet
Page 71: Split System Models7.5 Centrifugal
Page 75 and 76: Split System ModelsFigure 38 5-ton
Page 77 and 78: Split System ModelsFigure 40 Split
Page 79 and 80: 7.6.4 Glycol SystemsSplit System Mo
Page 81 and 82: Split System ModelsFigure 43 5-ton
Page 83 and 84: R407C Refrigerant8.0 R407C REFRIGER
Page 85 and 86: R407C RefrigerantNOTES79
Page 88: Ensuring The High AvailabilityOf Mi
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