For Business-Critical Continuity
Liebert Xtreme Density
System Design Manual
Precision Cooling
Page
1.0 SYSTEM DESCRIPTION
TABLE OF CONTENTS
4.0 LIEBERT XD COOLING MODULES-LIEBERT XDO, LIEBERT XDV, LIEBERT
FIGURES
5.0 SPECIFICATIONS
XDH AND LIEBERT XDCF
Figure 24 Hydraulic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 25 Bypass flow controller details, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 26 Bypass flow controller arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 27 Bypass flow controller piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Figure 28 Dimensional data-Liebert XDO hard-piped units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 29 Dimensional data-Liebert XDO with pre-charged option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Figure 30 Liebert XDO internal mounting location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 31 Liebert XDO top and front electrical access points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Figure 32 Liebert XDV dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Figure 33 Liebert XDV dimensions with one-shot connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Figure 34 Liebert XDV electrical connections for CE approved units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Figure 35 Liebert XDV electrical connections for CSA-approved units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Figure 36 Suspending single Liebert XDV from Unistruts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Figure 37 Suspending single Liebert XDV from the roof structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Figure 38 Alternative mounting methods-mounting multiple Liebert XDV units . . . . . . . . . . . . . . . . . . . 39 Figure 39 Liebert XDCF hydraulic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Figure 40 Overall dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Figure 41 Liebert XDCF unit mounting locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Figure 42 Liebert XDCF supply and return piping access points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Figure 43 Liebert XDH dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Figure 44 Supply and return piping connections
TABLES
1.0 SYSTEM DESCRIPTION
Pressure
Enthalpy
Figure 1 Pressure enthalpy diagram - refrigerant
1.1 European Union Fluorinated Greenhouse Gas Requirements
1.2 Direct and Indirect System Configurations
Figure 2 Direct system configuration-hydraulic system diagram
Figure 3 Indirect system configuration-hydraulic system diagram
1.3 Liebert XDO-Overhead Cooling Module
1.4 Liebert XDV-Vertical, Above-Cabinet Cooling Module
1.5 Liebert XDH-Horizontal Cooling Module
Figure 8 Liebert XDCF units on BladeFrame EX cabinets
1.6 Liebert XDCF
1.7 Liebert XDA-Air Flow Enhancer
1.8 Liebert XDP-Pumping Unit
1.8.1 Liebert XDP Minimum Load
Figure 10 Liebert XDP pumping unit
1.9 Liebert XDC-Refrigerant Chiller
1.9.1 Liebert XDC Minimum Load
Figure 11 Liebert XD Chiller unit
Prefabricated Headers
Liebert XD field-installed port kits header connection size
1.10 Liebert XD Piping
1.10.1 Liebert XD Field Piping Flexible Piping Kit
2.0 STARTING A NEW EQUIPMENT COOLING PROJECT
2.1 Determining Cooling Equipment Needs
Figure 13 Hot aisle-cold aisle arrangement with under-floor source
2.2 Implementing a Hot-Aisle/Cold Aisle Design
3.0 DESIGNING A LIEBERT XD SOLUTION
3.1 Determine Cooling Requirements and Select Liebert XD System
3.2 Calculate the Heat Load to be Handled by Liebert XD System
3.5.1 Number of Modules Supported by a Liebert XDP or Liebert XDC
3.4 Airflow Requirements for Liebert XD Solutions
3.5 Configuring a Liebert XD System
3.3 Selecting Liebert XD Cooling Modules
3.6 Liebert XDO Placement
Figure 14 Liebert XDO placement over cold aisle
3.6.1 Determining Spacing of Liebert XDOs in an Aisle
Figure 15 Liebert XDO spacing-horizontal and vertical
Figure 16 Positioning Liebert XDV on top of cabinet
3.7 Liebert XDV Unit Placement
Figure 17 Liebert XDCF unit mounting locations
3.8 Liebert XDCF Placement
Cold Aisle
3.9 Liebert XDH Placement
3.10 Liebert XDP/Liebert XDC Placement
Figure 18 Liebert XDH placement
for enhanced protection
Interlaced piping arrangement
for enhanced
Interlaced piping arrangement for enhanced protection
Interlaced piping
arrangement
3.12 Liebert XD Refrigerant
3.13 Liebert XD Piping System Design
Example
Liebert XD Cooling Modules
Supply, return pipe sizes for refrigerant loop
20ft 6.7m max
9ft 2.7m max Liebert XDP/ Liebert XDC
Liebert XDC
Figure 24 Hydraulic diagram
3.14 Liebert XD Piping Slope
3.15 Bypass Flow Controllers
Figure 27 Bypass flow controller piping
Figure 25 Bypass flow controller details, dimensions
Liebert XDP or Liebert XDC
Figure 26 Bypass flow controller arrangement
3.16 Determining Refrigerant Volume
3.16.1 Liebert XDP/Liebert XDC Pumped R-134a Circuit Volume
System refrigerant charge for the supply and return mains
Return Line Diameter 5/8
Metal Flex Pipe Connector Length
Refrigerant Charge, lb. kg
Supply Line Diameter 1/2
Table 12 Worksheet to calculate refrigerant charge
3.17 Liebert XDC DX R-407c Circuit Volume-Air Cooled Units
3.16.2 Calculating Refrigerant Charge-Example
Table 11 Calculating refrigerant charge-example
Table 14 Outdoor condenser charge-R-407c
3.18 Chilled Water Piping
3.19 Electrical
3.20 Display Panel and Remote Temperature/Humidity Sensor Locations
4.1.1 Optional Features Liebert XDO
4.1 Liebert XDO Standard Features
of XDO 24-1/8
Figure 28 Dimensional data-Liebert XDO hard-piped units
Figure 29 Dimensional data-Liebert XDO with pre-charged option
Left Side
Figure 30 Liebert XDO internal mounting location
Figure 31 Liebert XDO top and front electrical access points
4.2 Liebert XDV Standard Features
Mounting Hole Knockouts for High-Voltage Wiring FRONT OF XDO
TOP OF XDO Mounting Hole Knockouts for Low-Voltage Wiring
Figure 32 Liebert XDV dimensions
4.2.1 Optional Features-Liebert XDV
Supply Connection 1/2
Figure 33 Liebert XDV dimensions with one-shot connection
Detail Area “A”
Detail “A”
TO BE N.E.C. CLASS USE SWITCH CONTACTS WITH 75 V.A MINIMUM
Knockout for Optional Wiring Primary and Secondary Power Cords
POWER SOURCE
60Hz MODELS ONLY FIELD WIRING CONNECTIONS AT TERMINAL STRIP
Rear of XDV
Voltage Connections Knockout for Optional Wiring IEC Primary and
Secondary Power Inlet
Rear of XDV Right Side of XDV Condensate Detection Dry Contacts - Low
Figure 37 Suspending single Liebert XDV from the roof structure
Figure 36 Suspending single Liebert XDV from Unistruts
Attach hanger brackets
or Liebert XDP
4.3 Liebert XDCF Standard Features
Figure 39 Liebert XDCF hydraulic diagram
Liebert XDC
Liebert TM XD
Figure 40 Overall dimensions
NETWORK POWER
4.4 Liebert XDCF Mechanical Considerations
4.5 Liebert XDCF Installation Considerations
4.6 Liebert XDCF Piping Connection Methods and Points
Figure 41 Liebert XDCF unit mounting locations
4.6.1 Header System
4.7 Liebert XDH Standard Features
4.7.1 Optional Features-Liebert XDH
Figure 42 Liebert XDCF supply and return piping access points
Rear
Figure 43 Liebert XDH dimensions
Top of Liebert XDH
Detail “A”
Or 2-5/8 O.D
Return Main
seen from end
2-1/8 O.D
Table 17 Liebert XD Flex Pipe assemblies, supply and return
4.8 Liebert XD Flex Pipe Kit
Return
4.9 Liebert XD Piping Dimensions and Features
4.9.1 Piping Installation Method prefabricated headers
Supply
Return
Supply
Table 20 Five-port prefabricated piping legend
Page 3, Rev
7-7/16 Ref. Typ
Supply
Return
ODS ODR 120 Ref. 3048mm
Table 22 Liebert XDP dimensions
4.10 Liebert XDP Standard Features
Unit Dimensional Data
Figure 50 Liebert XDP dimensions
Table 23 Unit piping outlet connection sizes, inches, OD Cu
Figure 51 Liebert XDP piping access points and external features
User Interface
Switch
Status Lamps
Disconnect
Connection
Customer Power
Disconnect Switch
Transformer Power Block Fuse Blocks Transformer
Table 24 Liebert XD Chiller dimensions, weight
4.11 Liebert XDC Standard Features
4.11.1 Liebert XDC Optional Features
Figure 56 Liebert XDC dimensional data
Table 25 Liebert XD Chiller piping connection sizes
Figure 57 Liebert XDC piping locations
Table 26 Liebert XDC Water/Glycol Piping Connection Sizes
Figure 59 Piping locations-floor stand and valve assembly
10-1/2
6-1/2
Figure 60 Front view of Liebert XDC and electrical enclosures
Knockout for Input Power Enclosure Cover Not Shown for Clarity
Switch
Switch
Transformer Fuse Block
Figure 64 Liebert XDC high voltage connections-secondary disconnect switch, 60Hz models
User Interface Wall Box Wiring Temperature/Humidity Sensor Wiring
Figure 68 Liebert XDC Extra Low Voltage field connections points
Table 27 Liebert XDC160 specifications
5.0 SPECIFICATIONS
Models - 60 Hz
Table 28 Floor stand specifications-water-cooled Liebert XDC
Models - 60 Hz
XDC160 Water Floor Stand - 60Hz
Heat Rejection Equipment
Models - 60 Hz
XDC160 Glycol Floor Stand - 60Hz - 40% EG
Performance Data
Specifications
Table 31 Liebert XDP160 specifications
Specifications
Table 32 Liebert XDO16 specifications
Specifications
Table 33 Liebert XDO20 specifications
Table 34 Liebert XDO20 dimensions-domestic and export
Table 35 Liebert XDO16 dimensions-domestic and export
Includes piping connections
Table 36 Liebert XDV8 specifications
Table 37 Liebert XDV10 specifications
Specifications
Table 38 Liebert XDV8 dimensions-domestic and export
Table 39 Liebert XDV10 dimensions-domestic and export
Table 40 Liebert XDCF specifications
Table 41 Liebert XDH specifications
Models
Number of Fans
Specifications
Specifications
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