Page 2 - SAVE THESE INSTRUCTIONS; site-specific drawings and documents before moving the module.; Fluorinated Greenhouse Gas Requirements—European Union; module for installation.
I MPORTANT S AFETY G UIDELINES SAVE THESE INSTRUCTIONS NOTICE Risk of overhead interference. Can cause module or structural damage.The module may be too tall to fit through a doorway while on the skid. Measure the module and doorway heights and verify clearances by referring to the installation plan...
Page 3 - TABLE OF CONTENTS
i TABLE OF CONTENTS I MPORTANT S AFETY G UIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I NSIDE F RONT C OVER 1.0 C OMPONENT L OCATIONS AND M ODEL N UMBER N OMENCLATURE . . . . . . . . . . . . . . . . . . . . . 1 2.0 I NTRODUCTION . . . . . . . . . . . . . . . . . . . ...
Page 4 - ii; XD S
ii 6.7 Field Installation of Liebert XD Flex Pipe Kit on Liebert XDR . . . . . . . . . . . . . . . . . . . . . . 18 6.7.1 Connecting Methods—One-Shot Couplings for Pre-Charged Refrigerant Option . . . . . . . . . 19 6.7.2 Connect a Liebert XDR with One-Shot Couplings to Liebert XD Flex Pipe . . . . ...
Page 5 - iii; FIGURES
iii FIGURES Figure 1 Liebert XDR component locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 Liebert XDR model number nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure...
Page 6 - iv
Page 7 - Component Locations and Model Number Nomenclature; Figure 1; XD
Component Locations and Model Number Nomenclature 1 1.0 C OMPONENT L OCATIONS AND M ODEL N UMBER N OMENCLATURE Figure 1 Liebert XDR component locations Figure 2 Liebert XDR model number nomenclature 1. Supply Line2. Door Safety Catch3. Return Line4. Evaporator Coils5. Locking Door Latch6. Removable ...
Page 8 - Introduction; NTRODUCTION; References; NOTE; control in the conditioned space.
Introduction 2 2.0 I NTRODUCTION 2.1 References This document must be used together with site specific documentation and documentation for other parts of the system. 2.2 Pre-Installation Checks • Check the received materials to be sure all required assemblies and parts have been received. If you dis...
Page 9 - General Product Information; ENERAL; Product/System Description; or; Figure 3; Checking and Unpacking; Figure 5; Supply Lines; Liebert; Pumped
General Product Information 3 3.0 G ENERAL P RODUCT I NFORMATION 3.1 Product/System Description The Liebert XDR is a cooling system for high-density heat loads that mounts on the rear of a 24" x 42U rack (for other sizes consult the factory) and maintains access to the back of the server rack. R...
Page 10 - or dispose of the material appropriately.; NOTICE; Figure 4; modules to the installation location.; CAUTION; Forklift
General Product Information 4 3.2.1 Recyclable Packaging All material used to package this module is recyclable. Please save for future use or dispose of the material appropriately. NOTICE Risk of improper storage. Can cause module damage.Keep the module indoors and protected from dampness, freezing...
Page 11 - WARNING
General Product Information 5 3.2.3 Unpacking the Module Do not unpack the Liebert XDR before moving it to the installation location. Once at the installation point:1. Cut the banding and place all packaged modules on the floor for unpacking.2. Unbend all metal tabs as shown in Figure 5 . Use any of...
Page 12 - Center Top Brace
General Product Information 6 Figure 5 Removing packaging CutBands Unbend Tabs Remove theTop Cover Center Top Brace Hardwareand Keys RemoveSidePanels Remove FoamProtecting Topof Module Step 1 Step 2 Step 3 Steps 4, and 5 Step 6 Step 7
Page 13 - Figure 6; Removing the Liebert XDR from the Pallet; of the module on a flat surface and lay the Liebert XDR on it.
General Product Information 7 Figure 6 Remove Liebert XDR from pallet 3.2.4 Removing the Liebert XDR from the Pallet 1. Unfold the module bag to expose the Liebert XDR.2. Compare the serial tag information on the Liebert XDR to the bill of lading information. If the information does not match the pr...
Page 14 - Mechanical Considerations; ECHANICAL; Liebert XDR Dimensions; Figures 7; and; Figure 7; Piping is not load-bearing and
Mechanical Considerations 8 4.0 M ECHANICAL C ONSIDERATIONS 4.1 Liebert XDR Dimensions The Liebert XDR is engineered to fit on the rear of a rack enclosure measuring approximately 24" x 42U. Consult the factory for other sizes. Figures 7 , 8 and 9 illustrate the module’s dimensions and the locat...
Page 15 - Figure 8
Mechanical Considerations 9 Figure 8 Overall dimensions with one-shot coupling (pre-charged) 1-1/2" (38mm) 1-5/16" (34mm) 78-3/8" (1991mm) 5-1/8" (130mm) 83-1/2" (2121mm) 5-7/8" (149mm) 110deg 23-1/2" (597mm) 27-3/8" (695mm) 6-1/2" (165mm) 27-3/8" (695mm) 20-1...
Page 16 - Figure 9; Determining Placement in the Conditioned Space
Mechanical Considerations 10 Figure 9 Overall dimensions with removable coupling 4.2 Determining Placement in the Conditioned Space Refer to site-specific drawings for exact placement. Efficient cooling of the rack equipment depends on proper placement of equipment, proper use of blanking plates in ...
Page 17 - Airflow; Figure 10 Generic airflow diagram; spaces to prevent recirculation of heated air.; with the rack the Liebert XDR is mounted on.
Mechanical Considerations 11 4.3 Airflow The server fans draw air into the equipment enclosure. After heated the air, the server fans force the air across the Liebert XDR’s two coils. The Liebert XDR has a low air-side pressure drop (similar to a rack with perforated doors). The server fans within t...
Page 18 - Installation; NSTALLATION; Installing the Rack-Mounting Kit onto the Rack; Figure 11 Liebert XDR mounting locations; the Liebert XDR is being installed.
Installation 12 5.0 I NSTALLATION 5.1 Installing the Rack-Mounting Kit onto the Rack The Liebert XDR module mounts on the rear of the rack using a mounting kit. The mounting kit secures the Liebert XDR's frame to the rack. Two rails are attached to the rear of the rack with M6 x 12 bolts. The number...
Page 19 - Door Safety Catch
Installation 13 5.3 Door Safety Catch The door safety catch prevents the door from opening beyond 110°. When the door is fully open, the safety catch will hold door in place. To release the door, push up on the door catch and close the door.
Page 20 - Piping; IPING; specify where the piping connects to the Liebert XDR.; European Union Fluorinated Greenhouse Gas Requirements; Figure 12 Typical Liebert XDR piping—interlaced connections; TOP VIEW
Piping 14 6.0 P IPING Refer to site-specific drawings for general locations of the piping connections. The drawings should specify where the piping connects to the Liebert XDR. 6.1 European Union Fluorinated Greenhouse Gas Requirements Stationary air conditioning, refrigeration, heat pump equipment ...
Page 21 - Figure 13 Typical Liebert XDR piping—non-interlaced connection; Connection Methods and Points; pre-charged Liebert XDR or pre-charged Liebert XD Flex Piping.
Piping 15 Figure 13 Typical Liebert XDR piping—non-interlaced connection 6.3 Connection Methods and Points Refer to site specific drawings for general locations of the piping connections. For Liebert XDR con- nection locations, refer also to Figures 14 , 17 and 21 . The assembly and connection means...
Page 22 - Hard-Piped Connection Sizes; Table 1; Refrigerant
Piping 16 6.5.1 Brazing Preparations The assembly and connection means used for piping in the Liebert XD system are similar to those used for conventional refrigeration systems. All piping should be installed with high-temperature brazed joints. Soft soldering is not recommended.After the holding ch...
Page 23 - Figure 15 Hard pipe connection diagram; charging and startup.; Top of; Recommended Arc; Rear of; Refer to Table 1 for details.
Piping 17 Figure 15 Hard pipe connection diagram 6.6.1 Leak-Checking and Evacuation Refer to the Liebert XDC or Liebert XDP user manual for procedures for evacuation, leak check, charging and startup. 6.6.2 Header System The Liebert XDR module system with optional flexible piping requires use of the...
Page 24 - Field Installation of Liebert XD Flex Pipe Kit on Liebert XDR; the instructions in; Pipe; correct kit for your installation, see; Table 8; ease installation and prevent twisting the flex pipe.; Straight Connection; Connection to Liebert XD Cooling Module
Piping 18 6.7 Field Installation of Liebert XD Flex Pipe Kit on Liebert XDR If you are not performing a service installation or a field-retrofit, skip this section and proceed with the instructions in 6.7.2 - Connect a Liebert XDR with One-Shot Couplings to Liebert XD Flex Pipe . Liebert XD Flex Pip...
Page 25 - and see; Hard-Piped or Removable Liebert XD Flex Pipe Couplings; release pressurized R-134a refrigerant from the Liebert XDR.
Piping 19 6.7.1 Connecting Methods—One-Shot Couplings for Pre-Charged Refrigerant Option Liebert XDRs with the pre-charged option are equipped with one-shot couplings on the supply and return fittings. These contain a charge of R-134a refrigerant under pressure within the module. This charge must no...
Page 26 - Tools Required; Table 2; • Refrigerant oil; Figure 18 Male coupling on Liebert XD cooling module
Piping 20 6.7.2 Connect a Liebert XDR with One-Shot Couplings to Liebert XD Flex Pipe NOTICE Risk of improper reuse of Liebert XD Flex Pipes with one-shot couplings. Can cause refrigerant leaks.Liebert XD Flex Pipes with one-shot couplings must not be removed from the Liebert XDR unless they are bei...
Page 27 - Figure 20 Hex body, union nut on one-shot coupling; Pipe. The line should parallel the Liebert XD Flex Pipe.; Coupling
Piping 21 Figure 20 Hex body, union nut on one-shot coupling NOTICE Risk of improper tightening. Can cause equipment damage.It is imperative that the brass body on the Liebert XD Flex Pipe coupling does not rotate while the union nut is being tightened. If the brass body rotates, it may damage the L...
Page 28 - Connection Methods—Removable Couplings; Should additional O-rings be required, refer to; Table 4; coupling comes into contact with the O-ring on the module coupling.; If a torque wrench is not available, continue with the steps below.; union nut to the proper value shown in; Table 3; adjustable wrench until a definite resistance is felt.; Table 3
Piping 22 6.7.3 Connection Methods—Removable Couplings The assembly and connection means used for piping in the Liebert XD system are the same as those used in conventional refrigeration systems. Observe all standard practices during installation and startup to prevent damage and contamination.Both ...
Page 29 - Figure 22 Removable couplings; surfaces and threads before connecting the fittings.; This operation requires two or more people.
Piping 23 Figure 22 Removable couplings 6.7.5 Connect a Liebert XDR with Liebert XD Flex Pipe to a Liebert XD System NOTICE Risk of refrigerant loss. Can cause environmental pollution and equipment malfunction.Before connecting the Liebert XDR with Liebert XD Flex Pipe to the prefabricated piping ma...
Page 30 - Figure 23 Coupling size indicator; Coupling size; Supply Main
Piping 24 Figure 23 Coupling size indicator Figure 24 Liebert XD prefabricated piping assembly 7. Use mineral oil or polyol ester oil to lubricate the face of the poppet valve and the seal around the poppet valve on the female connector (on the Liebert XD Flex Pipe) (see Figure 25 ). 8. Apply minera...
Page 31 - Figure 25 Oil rings on header and Liebert XD Flex Pipe connectors; threads mate properly.; Table 5; Figure 26 Wrench arrangement for tightening couplings
Piping 25 Figure 25 Oil rings on header and Liebert XD Flex Pipe connectors 9. Thread the union nut of the Liebert XD Flex Pipe coupling onto the port coupling to ensure the threads mate properly. 10. Using the wrench arrangement shown in Figure 26 , torque the couplings to the values in Table 5 . N...
Page 32 - Steps 3; through; Flex Pipe
Piping 26 Figure 27 Detail view of Liebert XD Flex Pipe and prefabricated piping port 11. Repeat Steps 3 through 10 for the remaining Liebert XD Flex Pipe. 12. For a Liebert XDR module with removable couplings, open the return and then supply service valves. If the Liebert XDR is pre-charged DO NOT ...
Page 33 - Disconnect a Liebert XD Flex Pipe from a Liebert XD System; Refer to; Steps 5; Figure 29 Piping mains without Liebert XD Flex Pipe; Dust caps attach here
Piping 27 6.7.6 Disconnect a Liebert XD Flex Pipe from a Liebert XD System Tools Required • Two adjustable wrenches with a maximum adjustment size of 2 inches 1. Close the service valve in the supply line.2. Ensure there is airflow across the coil.3. Wait two minutes for the refrigerant to flow out ...
Page 34 - Disconnecting the Liebert XD Flex Pipe from the Liebert XDR; Removing the Liebert XDR from a Cabinet; people. Read all instructions before beginning.
Piping 28 6.7.7 Disconnecting the Liebert XD Flex Pipe from the Liebert XDR NOTICE Risk of improper reuse of Liebert XD Flex Pipes with one-shot connections. Can cause refrigerant leaks.Liebert XD Flex Pipes with one-shot connections must not be removed from the Liebert XDR unless they are being rep...
Page 35 - Installation Checklist and System Fill for Startup; Checklist for Proper Installation; properly; Charging with Refrigerant
Installation Checklist and System Fill for Startup 29 7.0 I NSTALLATION C HECKLIST AND S YSTEM F ILL FOR S TARTUP 7.1 Checklist for Proper Installation ___ 1. Liebert XDR modules are securely attached to the cabinet and aligned properly with the rack.___ 2. Check to ensure there are no obstructions ...
Page 36 - Starting the Liebert XD System; TARTING; YSTEM
Starting the Liebert XD System 30 8.0 S TARTING THE L IEBERT XD S YSTEM Refer to the user manual for the refrigerant supply unit, either a Liebert XDP or Liebert XDC, for details on starting the system. The Liebert XDP user manual is SL-16644 and the Liebert XDC user manual is SL-16671. The user man...
Page 37 - Maintenance; AINTENANCE; Fluorinated Greenhouse Gas Requirements
Maintenance 31 9.0 M AINTENANCE Minimal maintenance is required to keep the Liebert XDR operating at optimal levels. The module should be cleaned and checked for damage. Suggested maintenance includes: • Cooling fins—Clean any dust and debris from the cooling fins, taking care not to bend them. 9.1 ...
Page 38 - Specifications; PECIFICATIONS
Specifications 32 10.0 S PECIFICATIONS Table 6 Liebert XDR specifications Models XDR20B1- * XDR20B1P * (Pre-Charged R-134a) XDR20B1R * Cooling Capacity, Nominal, rated at 104ºF (40°C) EAT & 2400ft 3 /m (68m 3 /m) 20.5 kW (5.8 tons) Conditions 55°F (13°C) entering fluid temperature 50°F (10°C) or...
