Liebert Challenger ITR Manuel d'utilisateur

Precision CoolingFor Business-Critical Continuity™Liebert® Challenger™ ITRInstallation Manual - Nominal Capacities 23 or 33 kW, 50 & 60Hz

Installation4Figure 2 Cabinet dimensionsDPN001523Pg. 2, Rev. 1Filter Accessby Opening DoorUNITTOP VIEW32-1/2"(826mm)5/8"(16mm)9-5/8"(24

Installation5Figure 3 Optional floor stand dimensions30-1/2"(775mm)30-1/2"(775mm)1"(25.4mm)See Specification Sheetfor height of floor s

Installation62.5 Piping ConsiderationsConsideration should be given before installing refrigerant and liquid lines next to, under or above electronic

Installation7Figure 4 Piping connections for air-cooled unitsPiping outlet locations through theplenum are the same as the unit.See below for descript

Installation8Figure 5 Piping connections for split system fan coil unitsPiping outlet locations through theplenum are the same as the unit.See below f

Installation9Figure 6 Piping connections for water/glycol and GLYCOOL unitsPiping outlet locations through theplenum are the same as the unit.See belo

Installation10Figure 7 Piping connections for chilled water self-contained unitsPiping outlet locations throughthe plenum are the same as theunit. See

Installation112.6 Electrical ConnectionsThree-phase electrical service is required for all models in either 208, 230, 460, or 575 V, 60 Hz; or 200, 23

Installation129. Special alarm connections. Field-supplied 24V Class 1 wiring for special alarm. Connection made by adding normally open contacts betw

Installation132.8 Checklist for Completed Installation___ 1. Unpack and check received material.___ 2. Proper clearance for service access has been ma

Air-Cooled Models143.0 AIR-COOLED MODELS3.1 Condenser LocationThe air-cooled condenser should be located for maximum security and maintenance accessib

Air-Cooled Models15Figure 9 Air-cooled condensersTable 3 Air-cooled condenser statisticsModel Numberof Fans Connection Sizes(OD Copper)Net Weightlb (k

Air-Cooled Models163.3 Refrigerant PipingAll refrigeration piping should be installed with high temperature brazed joints. Prevailing good refrigerati

Air-Cooled Models173.4 Fan Speed Control SystemsFan Speed Control provides an infinite number of speed variations on specially designed, permanent spl

Air-Cooled Models183.4.2 Dehydration/Leak Test and Charging Procedures for R22 (standard) or R407C (Optional)Fan Speed Control Type CondenserDehydrati

Air-Cooled Models19Figure 10 Air-cooled fan speed control general arrangementSL -11 89 7 PG 5 Con de nser Co il Sc hra d e r Va lv e Fu si bl e Pl

Air-Cooled Models203.4.3 Charging1. Make sure unit is OFF. Open all disconnect switches and, on units supplied with circuit breakers, open all breaker

Air-Cooled Models213.5.2 Materials Supplied1. Built-in pre-wired condenser control box2. Air-cooled condenser3. Piping access cover to be reinstalled

Air-Cooled Models22Dehydration/Leak Test1. Make sure unit is OFF. Open all disconnect switches and pull all fuses except control fuses. On units suppl

Air-Cooled Models23Figure 11 Air-cooled, Lee-Temp general arrangementFACTORY PIPINGFIELD PIPINGSINGLE CIRCUIT SHOWNSL-10061 PG 4 SL-10071 PG 4Pipi

iTABLE OF CONTENTS1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Water-Cooled Models244.0 WATER-COOLED MODELS4.1 Piping ConsiderationsManual shut-off valves should be installed at the supply and return lines of each

Water-Cooled Models25Figure 12 Water-cooled general arrangementSL-11898 PG 5EvaporatorCoilExpansionValveSensingBulbExternalEqualizersHot GasBypassValv

Water-Cooled Models264.3 Water Regulating ValveThe water regulating valve automatically regulates the amount of fluid necessary to remove the heat fro

Glycol/GLYCOOL-Cooled Models275.0 GLYCOL/GLYCOOL-COOLED MODELS5.1 Drycooler LocationThe drycooler should be located for maximum security and maintenan

Glycol/GLYCOOL-Cooled Models285.4 Glycol PipingNOTICEGalvanized pipe must not be used in or with systems or units that contain glycol. The phosphates

Glycol/GLYCOOL-Cooled Models295.5 Filling Instructions5.5.1 Preparing the System for FillingIt is important to remove any dirt, oil or metal filings t

Glycol/GLYCOOL-Cooled Models305.5.2 Glycol SolutionsWhen considering the use of any glycol products in a particular application, you should review the

Glycol/GLYCOOL-Cooled Models315.5.3 Filling the SystemInstallation of hose bibs at the lowest point of the system is recommended. When filling a glyco

Glycol/GLYCOOL-Cooled Models32Figure 14 Drycoolers and pump packages Notes1. Single pump packages are 17-1/4" (438 mm) wide. Dual pump packages a

Glycol/GLYCOOL-Cooled Models33Figure 15 Pump packages—expansion tankTable 15 Mounting hole dimensional dataPUMP PACKAGE Ain (mm) Bin (mm)Cin (mm)SINGL

ii5.2 Drycooler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.3 Ele

Glycol/GLYCOOL-Cooled Models34Figure 16 Glycol general arrangementSL-11898 PG 6Glyco lPumpPumpHousingUnions*IsolationValves*ExpansionValveDrycoolerEle

Glycol/GLYCOOL-Cooled Models35Figure 17 GLYCOOL general arrangementSL-11901 PG 5PumpHousingGlyco lPumpUnions*IsolationValves*ExpansionValveEvaporatorC

Glycol/GLYCOOL-Cooled Models365.6 CondenserThe condenser is designed to operate in conjunction with a drycooler. The maximum coolant pressure is 350 p

Chilled Water Models376.0 CHILLED WATER MODELS6.1 Piping ConsiderationsManual shut-off valves should be installed at the supply and return lines to ea

Split System Models387.0 SPLIT SYSTEM MODELSThree (3) condensing unit styles are available: two (2) air-cooled and one (1) water/glycol-cooled con-den

Split System Models397.3 Piping Considerations7.3.1 Refrigerant LoopAll split systems require two refrigerant lines (an insulated copper suction line

Split System Models40Once all piping is complete, check for leaks and dehydrate the field piping as follows:1. Pressurize the field piping to 150 PSIG

Split System Models41Figure 19 Refrigerant piping diagramTable 23 Equivalent lengths (feet) for various pipe fittingsCopper PipeOD in.90 DegreeElbow C

Split System Models427.3.2 Quick Connect FittingsBe especially careful when connecting the quick connect fittings. Read through the following steps be

Split System Models437.4 Outdoor Air-Cooled Condensing UnitsFigure 20 Outdoor air-cooled condensing unit—horizontal air discharge modelsABCINDICATES A

iiiFIGURESFigure 1 Removing Liebert Challenger ITR from skid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3F

Split System Models44Table 24 Horizontal air discharge cabinet and floor planning dimensional dataModel Numbers Dimensional Data in. (mm) Module Weigh

Split System Models45Figure 21 Outdoor air-cooled condensing unit—top air discharge modelsSL-11081PG 5CA2"BLEFTAIRINTAKE(51mm)DGUARDHEIGHTTOPAIRD

Split System Models46Table 26 Cabinet and floor planning dimensional data - prop fan condensing modules, top air dischargeModel Numbers Dimensional Da

Split System Models47Figure 22 Electrical field connections, prop fan condensing moduleNOTE: Refer to specification sheet for full load amp

Split System Models487.5 Centrifugal Air-Cooled Condensing Units7.5.1 Installing the Indoor Condensing UnitRefer to drawings for unit dimensions and c

Split System Models49Figure 23 Detail of ceiling hanging bracket7.5.2 DuctingThe total external static pressure for the inlet and outlet ducts, includ

Split System Models50Figure 24 Centrifugal air-cooled condensing unit dimensional dataSL-11087 PG 451 13/16 "1 3/4 "21 1/4 "1 5/8 "

Split System Models51Figure 25 Centrifugal air-cooled condensing unit dimensional data (con't.)DPN000226Rev. 0Field-supplied unit disconnectswitc

Split System Models52Figure 26 Split systems general arrangementSL-11900 PG 5CondenserCoil1/2" (12.7mm) NPTPressure Relief ValveSightGlassCheckVa

Split System Models537.6 Water and Glycol-Cooled Condensing UnitsFor installation guidelines, refer to Installing the Indoor Condensing Unit on page 4

ivTABLESTable 1 Unit shipping weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Split System Models54Figure 27 Water/glycol-cooled condensing unit dimensionsSL-11087PG 632 "32 "29 13/16 "33 5/8 "24 "(812.8

Split System Models55Figure 28 Water/glycol-cooled condensing unit (con't.)DPN000228_Rev0Heat rejection connection.Field-supplied 24V NECClass 2

R407C Refrigerant568.0 R407C REFRIGERANTTable 32 R407C pressure/temperature chart for operation and superheat (discharge/hot gas and suction gas)Tempe

R407C Refrigerant578.1 Calculating SubcoolingExampleMeasure the liquid pressure (e.g., 200 psig). Find the liquid saturation temperature at that press

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Introduction11.0 INTRODUCTION1.1 System DescriptionsLiebert Challenger ITR™ environmental control systems are available in three main system configu-r

Installation22.0 INSTALLATION2.1 Room PreparationThe room should be well insulated and must have a sealed vapor barrier. The vapor barrier in the ceil

Installation32.4.1 Handling With Skid• Always keep the Liebert Challenger ITR upright, indoors and protected from damage.• Do not use the extended rea