Emerson Xtreme Density manual Liebert XDH Placement, Liebert XDP/Liebert XDC Placement

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Designing a Liebert XD Solution

3.9Liebert XDH Placement

The free-standing Liebert XDH cooling unit is best placed among the equipment cabinets in a hot aisle-cold aisle arrangement (see Figure 18). The Liebert XDH draws in air from the hot aisle, cools it and discharges the cooled air into the cold aisle where it is drawn into the equipment cabinets. Reg- ular spacing aids in optimizing cooling.

Liebert XDH units should be placed among the cabinets that generate the greatest amount of heat. If heat loads are dispersed evenly throughout the room, the Liebert XDH modules may be spread out accordingly.

If a Liebert XDH is installed at the end of a row, Liebert recommends using uni-directional air diffus- ers on that Liebert XDH. The uni-directional diffusers can be used for left or right air discharge by removing them from the Liebert XDH, turning them 180 degrees, then reattaching them to the Lie- bert XDH.

Liebert recommends using bi-directional air diffusers on Liebert XDH modules installed between racks.

Figure 18 Liebert XDH placement

Hot

Aisle

X	X	X	X
D	D	D	D
H	H	H	H

Cold

Aisle

X	X	X	X
D	D	D	D
H	H	H	H
Hot
Aisle

X	X			X	X
D	D			D	D
H	H			H	H

Cold

Aisle

3.10Liebert XDP/Liebert XDC Placement

The Liebert XDP/Liebert XDC may be placed in the critical space or in an adjacent equipment room. The allowable distance between the Liebert XDP/Liebert XDC and its connected cooling modules is determined by the piping design and by the amount of refrigerant required. Refer to 3.12 - Liebert XD Refrigerant and 3.13 - Liebert XD Piping System Design.

The maximum height of any of the main or connecting piping should be no more than 20 feet (6m) above the top of the Liebert XDP/Liebert XDC unit. Liebert XDV/Liebert XDO modules should be placed as close to the same level as possible. The differences in elevation between the highest and low- est Liebert XDV or Liebert XDO module in a system should be no more than 6 feet (2m).

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Contents Liebert Xtreme Density Page Table of Contents XDH and Liebert Xdcf SpecificationsIii Tables Liquid Liquid/Vapor Mix CoolFrame, XDH European Union Fluorinated Greenhouse Gas Requirements Direct and Indirect System ConfigurationsLiebert Heat Rejection Air Cooled or Water/Glycol Cooled Pumped RefrigerantLiebert XDO-Overhead Cooling Module Liebert XDV-Vertical, Above-Cabinet Cooling Module Liebert XDH-Horizontal Cooling Module Liebert Xdcf units on BladeFrame EX cabinets Liebert XdcfLiebert XDA-Air Flow Enhancer Liebert XDP Minimum Load Liebert XDP-Pumping UnitLiebert XDC Minimum Load Liebert XDC-Refrigerant ChillerLiebert XD Piping Liebert XD field-installed port kits header connection sizeLiebert XD Field Piping Flexible Piping Kit Prefabricated HeadersDetermining Cooling Equipment Needs Hot aisle-cold aisle arrangement with under-floor source Implementing a Hot-Aisle/Cold Aisle DesignCalculate the Heat Load to be Handled by Liebert XD System Determine Cooling Requirements and Select Liebert XD SystemConfiguring a Liebert XD System Airflow Requirements for Liebert XD SolutionsSelecting Liebert XD Cooling Modules Number of Modules Supported by a Liebert XDP or Liebert XDCDetermining Spacing of Liebert XDOs in an Aisle Liebert XDO PlacementLiebert XDO spacing-horizontal and vertical Liebert XDV is suspended From ceiling structure Liebert XDV Unit PlacementInput Information Step Results Liebert Xdcf unit mounting locations Liebert Xdcf PlacementLiebert XDP/Liebert XDC Placement Liebert XDH PlacementFor enhanced protection Interlaced piping arrangementFor enhanced Interlaced piping arrangement for enhanced protectionProtection Liebert XD Piping System Design Liebert XD RefrigerantKey to Piping Pipe Function Size / Equivalent Pipe Length Supply, return pipe sizes for refrigerant loopBypass Flow Controllers Liebert XD Piping SlopeRefrigerant Pumped XD CoolFrame, XDH, XDO or XDVLiebert XDP Liebert XDC Liebert XDP/Liebert XDC Pumped R-134a Circuit Volume Determining Refrigerant VolumeSystem refrigerant charge for the supply and return mains Return Line Diameter Return Line Diameter 5/8Calculating Refrigerant Charge-Example Liebert XDC DX R-407c Circuit Volume-Air Cooled UnitsCalculating refrigerant charge-example Worksheet to calculate refrigerant chargeElectrical Chilled Water PipingOutdoor condenser charge-R-407c Indoor water/glycol cooled module R-407c refrigerant chargeOptional Features Liebert XDO Liebert XDO Standard FeaturesLeft Side XDO 24-1/8 Rear of XDO Liebert XDO internal mounting location Liebert XDO top and front electrical access points Liebert XDV Standard FeaturesLiebert XDV dimensions Optional Features-Liebert XDVDetail Area a Detail a Power Source Liebert XDV electrical connections for CSA-approved units Suspending single Liebert XDV from Unistruts Page Liebert XDP Liebert Xdcf Standard FeaturesXD CoolFrame, XDH, XDO or XDV Liebert TM Liebert Xdcf Mechanical ConsiderationsReturn Pipe Liebert Xdcf Piping Connection Methods and Points Liebert Xdcf Installation ConsiderationsEgenera BladeFrame Optional Features-Liebert XDH Liebert XDH Standard FeaturesHeader System Supply and return piping connections Liebert XDH dimensionsRear XD Cooling Module Either 5/8 or 7/8 Or 2-5/8 O.DRecommended Arc Refer to for detailsLiebert XD Flex Pipe assemblies, supply and return Liebert XD Flex Pipe KitLiebert XD Liebert XDV CoolFrame Liebert XDHPiping Installation Method prefabricated headers Liebert XD Piping Dimensions and FeaturesTwo-port prefabricated piping legend Branch Piping Standard Run Long Run Four Port 186551G21 Four-port prefabricated piping legendBranch Piping Standard Run Long Run Five Port Five-port prefabricated piping legendBranch Piping Standard Run Long Run Ten Port 186650G51 Ten-port prefabricated piping legend33-1/8 990 1067 XDP160 Liebert XDP Standard FeaturesModel Pipe Connection Point 50/60 HZ Unit piping outlet connection sizes, inches, OD CuEnclosure Cover Customer Power Liebert XDC Optional Features Liebert XDC Standard FeaturesLiebert XD Chiller piping connection sizes Liebert XDC piping locationsLiebert XDC Water/Glycol Piping Connection Sizes Piping locations-floor stand and valve assembly Front view of Liebert XDC and electrical enclosures Switch Transformer Electrical handy box, factory-installed with cover Liebert XDC Extra Low Voltage field connections points Liebert XDC160 specifications Heat Rejection Equipment Performance DataPiping Connections Performance Data204 Liebert XDP160 specifications Liebert XDO16 specifications Pipe Connections without flex pipe Liebert XDO20 specificationsSides, Front and Rear Liebert XDO20 dimensions-domestic and export Liebert XDV8 specifications Liebert XDV10 specifications Liebert XDV10 dimensions-domestic and export Liebert XDV8 dimensions-domestic and exportLiebert Xdcf specifications Liebert XDH specifications Specifications Specifications Page Iti Ne tTi n That