Emerson 3000 installation manual System Descriptions

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Introduction

1.0INTRODUCTION

1.1System Descriptions

Liebert Challenger 3000 Precision Cooling systems are available in three main system configurations:

•self-contained system with a scroll compressor in the room unit

•self-contained chilled water system

•split system with an evaporator section and a remote condensing unit

All three types are available in upflow or downflow configurations. The standard upflow configuration is front return. All models require three-phase power. Units are available in 208, 230, 460, or 575V, 60Hz; and 200, 230 or 380/415V, 50Hz.

The following features are included as standard in all room units regardless of the type of system: Liebert iCOM® control, A-frame coil (V-frame on upflows), infrared humidifier, finned tubular stainless steel electric reheat, 2" filter, individual high voltage fused protection and fan assembly.

1.1.1Self-Contained Systems Air-Cooled Models

Complete refrigeration system including hot gas bypass and crankcase heater with standard scroll compressor, standard condenser and fan speed control for 95°F (35°C) ambient at sea level. Optional Digital scroll compressor with unloading solenoid valve is also available. Digital scroll compressor systems do not include hot gas bypass.

Water-Cooled Models

Compete refrigeration system including hot gas bypass with standard scroll compressor, water/glycol- cooled condenser and two-way water regulating valve with bypass. Optional digital scroll compressor with unloading solenoid valve is also available. Digital scroll compressor systems use a 2-way motorized ball valve in lieu of the regulating valve; they do not include hot gas bypass.

Glycol-Cooled Models

The water-cooled model as described above plus pump package and 95°F (35°C) design ambient drycooler.

GLYCOOL Models (5-Ton Only)

Complete refrigeration system including hot gas bypass with standard scroll compressor, glycol condenser and three-way water regulating valve plus an integrally piped Econ-O-Coil with three-way modulating control valve. Optional digital scroll compressor with unloading solenoid valve is also available. Digital scroll compressor systems use a 3-way motorized ball valve in lieu of the regulating valve; they do not include hot gas bypass.

1.1.2Chilled Water Models

Chilled Water models include chilled water piping, three-way modulating valve, and actuator assembly.

Liebert® Challenger 3000™

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Contents Liebert Challenger 3000 with Liebert iCOM Page Table of Contents Chilled Water Models Split System ModelsFigures R407C RefrigerantTables Important Safety Instructions Liebert Challenger Important Safety Instructions System Descriptions Centrifugal Fan Air-Cooled Split SystemsProp Fan Air-Cooled Water-CooledLocation Considerations Room PreparationEquipment Inspection Equipment HandlingRemoval of Skid Unit net weightHandling With Skid Model Lb. kgUpflow BU cabinet dimensions Floor Cutout Dimensions Drain Line Piping ConsiderationsPiping connection size Piping connections for air-cooled units Downflow models Chilled Water Unit Connection Sizes-inPiping connections for air-cooled units Upflow models Installation Applicable to all Models Condensate Pump Line 1/2 OD CU used only Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Electrical Connections Facility Fluid and Piping MaintenanceHumidifier Supply Water-Optional Infrared Terminal Block For Customer Connectons Upflow Models with Liebert iCOM Downflow Models with Liebert iCOMUnder-Floor Discharge Systems Plenum InstallationBalancing the Air Distribution Ducted ApplicationsChecklist for Completed Installation Line Voltage Condenser LocationLow Voltage Liebert Lee-Tempheater Common to all models. See below for key to a dimensionAir-cooled condenser statistics 43-9/16 51-7/16Refrigerant Piping Equivalent lengths feet for various pipe fittings Recommended line sizes OD copper, inchesCondenser refrigerant per serial tag Variable Fan Speed Control Piping Fan Speed Control SystemsVariable Fan Speed Control Materials Supplied Fan speed suction pressure transducer settings Variable Fan Speed ChargingDPN000349 Rev DPN001726 Liebert Lee-Temp Piping Liebert Lee-Temp Leak Check and Evacuation ProcedureLiebert Lee-Temp Controlled Materials Supplied Liebert Lee-TempCharging Liebert Lee-Temp suction pressure transducer settings407C Factory Piping Optional Piping Field Piping DPN001725 Condenser Factory Piping Field Piping Factory Piping Adjustment Water Regulating ValveManual Flushing Refrigerant control settings psi kPaMotorized Ball Valve-Digital Scroll Compressors ControlLocation Control MethodStartup Manual ControlDrycooler Location Drycooler InstallationPump and Drycooler Glycol Piping General GuidelinesRoom dew point temperatures Dry Bulb Wet Bulb Relative Dew Point HumidityExpansion Tanks, Fluid Relief Valves and Other Devices Volume in standard Type L copper pipingFilling Instructions Preparing the System for FillingGlycol Solutions Ethylene glycol concentrationsFilling the System See Note 30-1/4 For expansion tank dimensions, see on43-3/16 43-9/16 110 5mm 483mm 1097mmGlycol pump data Mounting hole dimensional dataDrycooler data Pump Pump Suction Pump Discharge Connection,Field Piping General arrangement-Glycol-cooled models with digital scroll Expansion Tank Field-Installed at Pressure Glycol Regulating Valve Testing Valve FunctionMotor Ball Valve-Digital Scroll Compressors Chilled Water Models WAY Valve Air-Cooled Condensing Units Water/Glycol-Cooled Condensing UnitsRefrigerant Loop R407C Charge Unit refrigerant chargeModel Lb kg Recommended refrigerant lines R407C sizes OD copper Line charges refrigerant per 100 ft m of Type L copper tubeLine coupling sizes Quick Connect Fittings Unit Dimensions See Table Outdoor Air-Cooled Condensing UnitsPFCZ42A-L PFCZ41A-L Outdoor air-cooled condensing unit-top air discharge models See Table36-1/4 38-1/2 Piping and electrical connections top air discharge152 Field-supplied unit disconnect switch Ton High Ambient Ton Quiet-LineCentrifugal Air-Cooled Condensing Units Installing the Indoor Condensing UnitModel Net Weight 60 Hz 50 Hz Lb kg MC40A MC39A Indoor centrifugal condensing unitDucting Airflow CFM CMHPiping Connections Rev0 Wire connections from evaporatorDPN000207 ModTon centrifugal air-cooled condensing unit dimensional data AIR Cooled Water Cooled Ton Connection Sizes Water and Glycol-Cooled Condensing UnitsPiping Considerations Condenser Water RequirementsGlycol Systems Ton water/glycol-cooled condensing unitDPN000209 Ton water/glycol-cooled condensing unit dimensional data WATER/GLYCOL Temperature Gauge Pressure Psig KPa R407C RefrigerantCalculating Subcooling Temperature Pressure Gauge Psig KPaExample Page Twor k Ne tPpor t Is t Care
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