Emerson user manual Environmental Control, Heat Removal-Self-Contained, Air Cooled XDF

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XDF Components

3.1.5Environmental Control

The XDF supplies cooling air—68°F to 77°F (20-25°C)—to electronic equipment in the rack-mount equipment compartment.

In normal operation, six fans at the right front corner of the XDF circulate cooling air through the equipment compartment. The laterally circulating air absorbs heat generated by the electronic equip- ment and transfers the heat to an evaporator coil at the right rear of the XDF. The heat is removed differently in the self-contained, air cooled and water/glycol cooled units.

Heat Removal—Self-Contained, Air Cooled XDF

Heat removed from the self-contained, air cooled XDF cabinet is transferred to condenser coils at the top of the XDF, in a section separated from the equipment compartment. The condenser fan on top of the self-contained, air cooled XDF draws ambient air through the condenser coils and exhausts the heat-laden air into the room.

Heat Removal—Water/Glycol Cooled XDF

The water/glycol cooled XDF transfers the heat captured by the evaporator coil to a brazed plate con- denser at the top of the unit, also separate from the equipment compartment. That heat is then car- ried away by the cooling water or glycol to a condenser or drycooler.

Figure 7 Cooling system components—self-contained, air cooled models

Condenser Fan	Condenser Coil

Condenser Air

Intake Vent for

Normal Operation

Backup Ventilation Intake Vent (exhaust vent is on rear)

Evaporator Coil (behind damper) extracts heat from circulated air

Front

Rear

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Contents Liebert XDF Page Table of Contents Piping CONSIDERATIONS-WATER/GLYCOLMODELS only Filling the XDF with COOLANT-WATER or GlycolElectrical Connections Cable Management OptionsMaintenance SpecificationsTables Important Safety Instructions Glossary of Symbols Indicates weightHazardous Voltage Present Indicates ground connectionEntry Point Condenser Air ICOM Controller Backup Ventilation Air Intake CompressorCondenser Coil 1 Operational Overview Water/Glycol Cooled Model Brazed Plate Condenser behind grille ICOM ControllerCondenser fan Removable to reduceHeight temporarily Return Line FemaleDimensional data, self-contained, air cooled model 139.7mm 176.5mm47.6mm Plate Connection114mm EntryCutouts Cable Entry CutoutXDF Components FrameEnclosure DoorsHeat Removal-Self-Contained, Air Cooled XDF Environmental ControlHeat Removal-Water/Glycol Cooled XDF Rear FrontBrazed Plate Condenser Control-Liebert’s iCOM Controller Liebert iCOM controllerCoolant Source-Water/Glycol Models Closed-Loop Water SystemDrycooler Loop Water/Glycol Return Line CooledPower Options MP Advanced Power Strips and Controllers Uninterruptible Power SupplyOptional Equipment General Enclosure OptionsRecommended Setup Equipment InstallationInspection Unloading the XDFUnpack the XDF Handling the Unit While It is PackagedFork Lift Removing the XDF from Skid Right front corner detail controls side of XDFRoll XDF off the shipping skid 36 915mm XDF Site Preparation915mm Voltage Requirements Voltage Input RequirementsDrycooler Installation-Water/Glycol Cooled Model Optional condensate pump performanceMaximum Head Model Feet m 60Hz 50HzEquipment Layout Recommended equipment arrangementFrame and Enclosure Configurations Mounting HardwareInternal Mounting Rails Rear-Mount Rails-PositionDoor-Remove Side Panels-Remove and ReplaceRemove the Door Quick Door RemovalRemove the Right Panel Replace a PanelGeneral Closed Loop Water SystemPiping CONSIDERATIONS-WATER/GLYCOL Models only Water supply flow ratesCorrosion Protection Expansion Tanks, Fluid Relief Valves and Other DevicesFreeze Protection-Coolant Type and Insulation Glycol Solutions Drycooler Loop SystemEthylene glycol concentrations Glycol supply flow ratesXDF Water/Glycol Cooled Unit Volume Volume in standard Type L copper pipingPreparing the System for Filling Filling the XDF with COOLANT-WATER or GlycolCustomer Cable Entry Points Electrical ConnectionsDashed line delineates equipment compartment Rear Utility Power Supply Route Input Power Cables Through the XDF’s TopCable Management Cable Management ConsiderationsCable Management Options Optional Cable Management Channel Cable AccessTop Cover and Back Cable Tray Detail View Startup XDF Startup Inspection ChecklistSite Conditions Starting the XDF Escape Key Down Arrow KeyICOM Components and Functions Environmental ControlOperation Keyboard icons and functions Icon Key Name FunctionNavigating Through the iCOM Display OK noAccessing Menus and Settings Viewing Data Entering the PasswordChanging Operational Settings User menu icons Icon Name DescriptionChanging the XDF’s Default Operating Temperature Changing iCOM’s Display SettingsHighlight the setting to be changed by pressing Enter Operation With the Door Open Uninterruptible Power Supply Backup Ventilation SystemXDF Compressor Maintenance Periodic MaintenanceTroubleshooting Specifications Physical specificationsSelf- Contained Water/Glycol Dimensions Air Cooled XDF MonitoringTotal heat rejection Electrical specificationsSelf- Contained Water/Glycol Electrical Data Air Cooled XDF Optional Power Systems UPS performance dataTypes Quan Port Remote Monitoring and Control MP Advanced Power Strip specificationsRemote Monitoring Only Page Ne t ItiTi n That