Emerson ITR manual Water/Glycol Self-Contained Systems-Standard Features

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Water/Glycol-Cooled Systems—Standard and Optional Features

8.0WATER/GLYCOL-COOLED SYSTEMS—STANDARD AND OPTIONAL FEATURES

8.1Water/Glycol Self-Contained Systems—Standard Features

Liquid-Cooled Condensers

A co-axial condenser provides ample capacity to handle the heat rejection needs of the system while using a minimum of liquid and low total pressure drop.

Regulating Valves

Head pressure operated regulating valves accurately control the condensing temperature and main- tain system capacity for various entering liquid flow rates and temperatures. Two-way valves with bypass are standard.

8.2Water/Glycol-Cooled, Self-Contained System—Optional Features

Three-way Regulating Valves

Three-way valves provide accurate control of condensing temperature and thus maintain constant system capacity while also keeping the condenser water flow rate constant.

High Pressure

The high pressure option for the condenser circuit consists of a regulating valve and a condenser rated at 350 psig (2413 kPa) water-pressure. This option is required in applications with large static head pressures.

Compressor Crankcase Heater

A compressor crankcase heater is available to prevent the migration of refrigerant to the compressor during off cycles.

Hot Gas Reheat

The hot gas reheat assembly consists of a three-way directional solenoid operated valve and a hot gas reclaim coil.

70/30 Cu-Ni Econ-O-Coil

This coil replaces the standard copper tube coil to provide improved resistance to corrosion. This option must be specified whenever a GLYCOOL or Dual Cooling Source system is applied to a cooling tower loop or other open water system.

8.3Water/Glycol Split System—Standard Features

Water/Glycol-Cooled Condensing Units

Factory charged and sealed, the water-cooled condensing unit is ready to be installed quickly and eas- ily. The counter-flow coaxial condenser with two-way or three-way regulating valve designed for 150 psi (1034.3 kPa) is matched to the heat rejection requirements of the compressor for a variety of flow rates and fluid temperatures.

Condensing unit has a hot gas bypass standard feature that bypasses hot gas around the compressor directly to the suction side of the compressor to provide capacity control and reduce compressor cycling. System includes liquid injection valve to maintain proper suction superheat.

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Contents Liebert Challenger ITR Split system configurations Table iii Self-contained system configurationsTable i Product model information Table of Contents Glycool SYSTEMS-STANDARD and Optional Features AIR-COOLEDSYSTEM-STANDARD and Optional FeaturesRefrigeration Systems Optional EQUIPMENT-ALLSYSTEMSComprehensive Monitoring SOLUTIONS-OPTIONAL System Data Dimensional Drawings Electrical DataComprehensive Monitoring SYSTEMS-OPTIONAL Figures Page Page Air Volume Temperature ControlHumidity Control Air FiltrationMultiple Configurations to Fit a Variety of Spaces Liebert Challenger ITREfficiency in Economic Terms Unit configurations Image is Illustrative only Control DiagnosticsControl Type Internal System ControlCustom Alarm Maximum of Four AlarmsLogging Graphical Displays-Advanced Graphic Control OnlyElectrical Panel Cabinet and FrameFan Section Infrared HumidifierDisconnect Switch-Locking Type Remote Temperature/ Humidity SensorsCondensate Pump Condensate pump capacityChilled Water System-Optional Features Chilled Water System-Standard FeaturesRefrigeration System Components-Standard Features Self-Contained SystemsSplit Systems Air-Cooled, Self-Contained Systems-Optional Features Air-Cooled, Self-Contained Systems-Standard FeaturesAir-Cooled Split Systems-Optional Features Air-Cooled Split Systems-Standard FeaturesCentrifugal Fan, Condensing Unit Propeller Fan Condensing UnitWater/Glycol Split System-Standard Features Water/Glycol Self-Contained Systems-Standard FeaturesWater/Glycol-Cooled, Split System-Optional Features Factory Installed Non-Fused Disconnect SwitchGlycol Pump GLYCOOL-Self-Contained Models Only Glycool System-Standard FeaturesDrycooler Glycol and GLYCOOL-Cooled-Optional EquipmentQuiet-Line Drycoolers Evaporator Coil Econ-O-Coil Three-way Glycool Control ValveSteam Generating Humidifier Steam generating humidifier Adjustable Floor StandHigh-Efficiency Filter SCR ReheatHigh External Static Blowers High-Efficiency MotorsFirestat Smoke DetectorHot Water Reheat FirestatStand-Alone Monitoring and Leak Detection Solutions Enterprise Monitoring SystemsNetwork Monitoring Systems Discrete Output Interface Card Leak Detection ModulesLiebert SiteLink Liebert SiteScan WebLiebert Nform Environmental Discrete Outputs CardTemperature and Humidity Recorder Universal MonitorLeak Detection BR 067A BR 060E Liebert Challenger ITR air-cooled data-60 HzInfrared Humidifier Standard System Type Split Systems Liebert Challenger ITR air-cooled data-50 HzFan Data Blower A12x9AT Evaporator Coil V-Frame, at Standard ConditionsLiebert Challenger ITR air-cooled data-50Hz Connection Sizes Challenger ITR UnitCondenser Air 35C 95F Ambient Liebert Challenger ITR water cooled data, 60 Hz System Type Self-Contained Split SystemsIndoor Unit BR 071WG BR 060E Net Capacity Data Water Regulating Valve Water Requirements Coaxial CondenserConnection Sizes Remote Condensing Unit BTU/H Liebert Challenger ITR water cooled data, 50 HzCapacity, kg/hr lb/hr Glycool Liebert Challenger ITR glycol cooled data, 60 HzSteam Generating Humidifier Optional Indoor UnitGlycool Liebert Challenger ITR glycol cooled data, 50 HzGlycol Pump 3-Phase kW hp System Type Glycol CooledDrycooler 35C 95F Ambient Indoor Unit BR 102C Fan Data Blower A12x9AT Liebert Challenger ITR chilled water data, 60 HzIndoor Unit BR 101C Liebert Challenger ITR chilled water data, 50 Hz50 Hz 60 Hz Unit Weight Models Lb. kg Dimensional DrawingsOptional Floor Stand Model Net Weight 60 Hz 50 Hz Lbs kg MC69W MC68W 36-1/4 SL-11081Liebert Lee-Temp Receiver = 40 1016mm = 7-1/2 190mm Liebert Challenger ITR electrical data1-60 Hz Electrical DataMotor Hp 1.5 kW Self-contained with SCR reheatMotor Hp 2.2 kW Electric Reheat Only Motor Hp 1.1 kWOutdoor condensing units Scroll compressor and main fan for comparison purposes onlyVoltage 208 230 460 575 60 Hz Scroll Compressor Main Fan Motor Hp 1.1 kWOutdoor condensing units-Quiet-Line Indoor condensing units, air-cooledIndoor condensing units, water-cooled Liebert Lee-Temp condensers Fan speed control condensersDrycooler and pump package 95F 35C ambient Voltage 208/230 460 575 GlycolLiebert Challenger ITR electrical data-50 Hz Scroll compressor and main fan for comparison only Indoor condensing units water-cooled Indoor condensing units air-cooledDrycooler only 35C 95F ambient, three-phase Drycooler only 35C 95F ambient, single phasePumps Design Requirements SummarySubmittals All SystemsAdvanced Microprocessor Control Standard Audible Alarm AlarmsCommon Alarm DiagnosticsCommunications Advanced Microprocessor Control with Graphics OptionalAlarms Steam Generating Humidifier Optional Infrared Humidifier StandardElectric Reheat Standard Hot Water Reheat OptionalDirect Expansion Self-Contained Systems Liebert Lee-Temp Head Pressure Control Optional Fan Speed Control FSC Head Pressure Control StandardCentrifugal Fan Condenser Optional Two-way Water Regulating Valve with Bypass StandardGlycool Self-Contained Systems Outdoor UnitCentrifugal Fan Condensing Unit Direct Expansion Split SystemsOptional Disconnect Ton ModelsOptional Quiet-Line Models Water or Glycol-Cooled Split SystemsOptional High Ambient Models Water or Glycol-Cooled Condensing UnitChilled Water Self-Contained Systems Chilled Water Coil Flow Switch OptionalThree-way Chilled Water Valve Standard Two-way Chilled Water Valve OptionalComprehensive Monitoring Solutions Installation of Environmental Control UnitsField Quality Control Page Iti Ne tTi n That