Liebert installation manual Liebert Challenger ITR

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Precision Cooling

For Business-Critical Continuity

Liebert® ChallengerITR

Installation Manual - Nominal Capacities 23 or 33 kW, 50 & 60Hz

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Liebert Challenger ITR Page Table of Contents Split System Models Chilled Water ModelsR407C Refrigerant Figures Tables System Descriptions Room Preparation Remote Sensor Installation LocationEquipment Inspection Location ConsiderationsHandling With Skid Unit shipping weightsRemoval of Skid Domestic Export Model Lb kg 50Hz Models 60Hz ModelsUnit Weight Cabinet dimensionsSL-11897 Drain Line Piping ConsiderationsPiping connection size Piping Outlet Locations Piping connections for split system fan coil units Piping connections for water/glycol and Glycool units Piping connections for chilled water self-contained units Electrical connections Electrical ConnectionsBalancing the Air Distribution Plenum InstallationDucted Applications Checklist for Completed Installation Line Voltage Condenser LocationLow Voltage Lee-Temp/Flood Back Head Pressure Control CondensersAir-cooled condenser statistics Recommended line sizes OD copper inches Refrigerant Piping23 & 33 kW 067A 065A Equivalent Length Hot Gas Line Liquid LineMaterials Supplied Fan Speed Control SystemsEquivalent lengths feet for various pipe fittings Condenser refrigerant per serial tagDehydration/Leak Test Single Circuit Shown Lee-Temp/Flood Back Head Pressure Control Systems Refrigerant control settings psi kPaCharging PipingMaterials Supplied Low Pressure Cut Out High Pressure Cut Out 360 Single Circuit Shown Condenser Water-cooled general arrangement Testing Valve Function Water Regulating Valve AdjustmentWater Regulating Valve Water Regulating Valve Manual FlushingDrycooler Location Drycooler InstallationPump and Drycooler Glycol Piping Room dew point temperaturesExpansion Tanks, Fluid Relief Valves and Other Devices Dry Bulb Wet Bulb Relative Dew Point HumidityVolume in standard Type L copper piping Indoor unit glycol volume approximate gallons liters maxFilling Instructions Preparing the System for FillingEthylene glycol concentrations Glycol Solutions@ 50F 10C Filling the System 43-9/16 110 5mm For expansion tank dimensions, see onSee Note 30-1/4 483mm 43-3/16 1097mmDrycooler data Mounting hole dimensional dataGlycol pump data Pump Pump Suction Pump Discharge ConnectionGlycol general arrangement Glycool general arrangement Glycol Regulating Valve Glycol Regulating Valve AdjustmentChilled Water Models Water/Glycol-Cooled Condensing Units Air-Cooled Condensing UnitsRefrigerant Loop Recommended refrigerant lines R22 or R407C sizes OD copper Unit refrigerant chargeLine coupling sizes Evaporator Condensing Unit EvaporatorQuick Connect Fittings Outdoor Air-Cooled Condensing Units Unit Dimensions See TablePFH067A-L See Table Outdoor air-cooled condensing unit-top air discharge models36-1/4 38-1/2 Piping and electrical connections top air discharge152 SL-11081 PG 8A Electrical field connections, prop fan condensing moduleModel Net Weight 60 Hz 50 Hz Lb kg MC65A MC64A Installing the Indoor Condensing UnitCentrifugal Air-Cooled Condensing Units Indoor centrifugal condensing unitAirflow CFM CMH DuctingCentrifugal air-cooled condensing unit dimensional data AIR Cooled Water Cooled Water and Glycol-Cooled Condensing Units Regulating Valve Adjustment and TestingPiping Considerations Condenser Water RequirementsWater/glycol-cooled condensing unit dimensions WATER/GLYCOL R407C Refrigerant Temperature Gauge Pressure Psig KPaCalculating Subcooling Temperature Pressure Gauge Psig KPaExample Iti Ne tTi n That