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Emerson XDR manual

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Table of contents for the manual

  • Page 1

    Precision Cooling For Business -Critic al C ontinuity™ Li eber t ® XDR ™ User Ma nual[...]

  • Page 2

    I MPORT ANT 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 throu gh a doorwa y whil e on the skid. Measure the module and doorway heights and verify clearances by referring to the instal lation plans and other site-specific drawings and docum[...]

  • Page 3

    i T ABLE OF CONTENTS I MPORT ANT S AFETY G UIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I NSIDE F RONT C OVER 1.0 C OMPONENT L OCATIO NS AND M ODEL N UMBER N OMENCLAT URE . . . . . . . . . . . . . . . . . . . . . 1 2.0 I NTRODUCTI ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    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 Refriger ant Option . . . . . . . . . 19 6.7.2 Connect a Liebert XDR with One- Sho t Couplings to Liebert XD Fle x Pipe . . . . . . . . . . . . . . 20 6.7.3 Connection Meth[...]

  • Page 5

    iii FIGURES Figure 1 Liebert XD R component locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 Liebert XDR mo del number nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 3 Generic piping layout . . . . . . . . . . . .[...]

  • Page 6

    iv[...]

  • Page 7

    Component Locati ons and Model Numbe r 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 nomenclatu re 1. Supply Line 2. Door Safety Catch 3. Return Line 4. Evaporator Coils 5. Locking Door Latch 6. Removable Installation Handles 7. Frame 1 2 3 4 5 6 [...]

  • Page 8

    Introd uction 2 2.0 I NTRODUCTION 2.1 References This document must be used together with site specific documenta tion and documentation fo r other parts of the system. 2.2 Pre-Inst a llation Checks • Check the received materials to be sure all required assemblies and parts have been received. If you discover any external dama ge, report it to th[...]

  • Page 9

    General Product Information 3 3.0 G ENERAL P RODUCT I NFORMATION 3.1 Product/System Description The Liebert XDR is a cooling s ystem for high-den sity 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. Room air is drawn in through the front of the ra[...]

  • Page 10

    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 temperatures and contact damage. NOTICE Risk of [...]

  • Page 11

    General Product Information 5 3.2.3 Unp acking the Module Do not unpack the Liebert XDR before moving it to the installation lo cation. 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 these tools to unbend th e tabs: flat-blade [...]

  • Page 12

    General Product Information 6 Figure 5 Removing p ackaging Cut Bands Unbend T abs Remove the T op Cover Center T op Brace Hardware and Keys Remove Side Panels Remove Foam Protecting T op of Module Ste p 1 Ste p 2 Ste p 3 Ste ps 4 , a nd 5 Step 6 Ste p 7[...]

  • Page 13

    General Product Information 7 Figure 6 Remove Liebert XDR from p allet 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 i nformation on the Li ebert XDR to the bill of lading informat ion. If the information does not matc h the product specifi e d, contact your local sales [...]

  • Page 14

    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 dim ensions and the location of pipes. Figure 11 shows the attachment p[...]

  • Page 15

    Mechanical Considerations 9 Figure 8 Overall dimensions wit h one-shot coupling (pre-c harged) 1-1/2" (38mm) 1-5/16" (34mm) 78-3/8" (1991mm) 5-1/8" (130mm) 83-1/2" (2121mm) 5-7/8" (149mm) 1 10deg 23-1/2" (597mm) 27-3/8" (695mm) 6-1/2" (165mm) 27-3/8" (695mm) 20-1/2" (520mm) 1-1/8" (29mm) 2[...]

  • Page 16

    Mechanical Considerations 10 Figure 9 Overall dimensions wit h removable coupling 4.2 Determining Placement in the Conditioned Sp ace Refer to site-specifi c drawings for exact placement. Efficient cooling of the ra ck equipment depends on proper placement of equipment, prop er us e of blanking plates in any voids in the rack, and good cable manage[...]

  • Page 17

    Mechanical Considerations 11 4.3 Airflow The server fans draw air into the equipment enclosur e. After heated the air, the server fans force the air across the Liebert XDR’s two coils. The Liebert XD R has a low air-side pressu re drop (similar to a rack with perforated doors). The se rver fans within the rack create su ffic ient airflow to mov e[...]

  • Page 18

    Installation 12 5.0 I NST ALLATION 5.1 Inst alling the Rack-M ounting Kit onto the Rack The Liebert XDR module mounts on the rear o f the rack using a mounting kit. The mounting ki t secures the Liebert XDR's fra me to the rack. Two ra ils are attached to the rear of the rack with M6 x 12 bolts. The number of bolts can vary depending on the ra[...]

  • Page 19

    Installation 13 5.3 Door Safety Catch The door safety catch prevents th e door from opening be yond 110°. When the doo r is fully open, th e safety catch will ho ld door in place. To re lease th e door, push up on the door catch and close the door.[...]

  • Page 20

    Piping 14 6.0 P IPING Refer to site-specific drawings fo r 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 Requirement s Stationary air conditioning, refrigerat ion, heat pu mp equipment and stationa ry fire protection sys- tems in t[...]

  • Page 21

    Piping 15 Figure 13 T ypical Lieb ert XDR piping—non-interlaced conne ction 6.3 Connection Met hods and Point s Refer to site specific drawings for general locati ons of the piping connect ions. For Liebert XDR con- nection locations, refer also to Figures 14 , 17 and 21 . The assembly and connection means used for piping in the Liebert XD system[...]

  • Page 22

    Piping 16 6.5.1 Brazing Prep arations The assembly and connection means used for piping in the Liebert XD system are similar to those used for conven tional refrigeration s ystems. All piping shoul d be installed with hig h-temperature brazed joints. Soft soldering is not recommended. After the holding charge has been v ented and before brazing, wr[...]

  • Page 23

    Piping 17 Figure 15 Hard pipe connection diagram 6.6.1 Leak-Checking and Evacuation Refer to the Lieb ert XDC or Liebert XDP user ma nual for procedures fo r evacuation, leak check, charging and startup. 6.6.2 Header System The Liebert XDR module sy stem with op tional flex ible piping requires use of the Liebert XD prefabri- cated piping assembly.[...]

  • Page 24

    Piping 18 6.7 Field Inst allation of Liebert XD Flex Pipe Kit on Liebert XDR If you are not performing a service installation or a field-ret rofit, skip this section and proceed with the instructions in 6.7.2 - Connect a Liebert XDR with One-Shot Couplings to Lieber t XD Flex Pipe . Liebert XD Flex Pipe kit s are available i n lengths of 4, 6, 8 an[...]

  • Page 25

    Piping 19 6.7.1 Connecting Methods—One-Shot Couplings for Pre-Charged Refrigerant Option Liebert XDRs with the pre-charged option are equipped wi th one-shot coupling s on the supply and return fittings. These contain a ch arge of R-134a refrigerant under pressure wi thin the module. This charge must not be vented. Do not remove the pipe caps or [...]

  • Page 26

    Piping 20 6.7.2 Connect a Liebert XDR with One-Shot Couplings to Liebert XD Flex Pipe NOTICE Risk of improper reuse of Li ebert XD Flex Pipes with on e-shot couplings. Can cause refrigerant leaks. Liebert XD Flex Pipe s with one-shot coup lings must not be removed from the Liebert XDR unless they are being replace d with Liebert XD Flex Pipes with [...]

  • Page 27

    Piping 21 Figure 20 Hex body , union nut on one-shot coupling NOTICE Risk of improper tightening . Can cause equipment damage. It is impe rative that t he brass body on t he Liebert XD Flex Pipe coupling doe s not rotate wh ile the union nut is being tightened. If the brass bo dy rotates, it may dama ge the Liebert XD Flex Pipe. 5. Hold the brass b[...]

  • Page 28

    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 refrigera tion systems. Observe all standard practices during installa tion and startup to prevent damage and contamination. Both supply and return fittings may be su pplied w[...]

  • Page 29

    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 polluti on and equipment malfunction. Before connecting the Liebert XDR with Liebert XD Flex Pipe to the prefabricated piping mains, check t he whol e system for leaks. Check t[...]

  • Page 30

    Piping 24 Figure 23 Coupling size indicator Figure 24 Liebert XD pref abricated piping assembly 7. Use mineral oil or polyol ester oil to lubrica te th e 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 mineral oil or polyol ester oil to the stainless ste[...]

  • Page 31

    Piping 25 Figure 25 Oil rings on header and Liebert XD Flex Pipe connectors 9. Thread the union nut of the Lieb ert XD Flex Pipe coupling onto the port coupling to ensure the threads mate properly. 10. Using the wrench arrangem ent shown in Figure 26 , torque the couplings to the values in Table 5 . NOTICE Risk of twisted or kinked piping. Can caus[...]

  • Page 32

    Piping 26 Figure 27 Det ail view of Liebert XD Fl ex Pipe and prefabricated pipin g port 11. Repeat Steps 3 through 10 for the re maining Liebert XD Flex Pipe. 12. For a Liebert XDR module with removable coupli ngs, open the return an d then supply service valves. If the Liebert XDR is pre-charged DO NOT open either of the service valves. 13. Refer[...]

  • Page 33

    Piping 27 6.7.6 Disconnect a Liebert XD Flex Pipe from a L iebert XD System T ools Required • Two adjustable wrenches with a ma ximum adjustment size of 2 inches 1. Close the serv ice valve in the supply line. 2. Ensure there is ai rflow across the coil. 3. Wait tw o minutes for the refrigerant to flow o ut of the module. 4. Close the serv ice va[...]

  • Page 34

    Piping 28 6.7.7 Disconnecting the Liebert XD Flex Pipe from the Liebert XDR NOTICE Risk of improper reuse of Li ebert XD Flex Pipes with on e-shot connections. Can cause refrigerant leaks. Liebert XD Flex Pipe s with one-shot conn ections must not be remov ed from the Liebert XD R unless they are being replace d with Liebert XD Flex Pipes with one-[...]

  • Page 35

    Installation Checklist and System F ill for S t artup 29 7.0 I NST ALLATION C HECK LIST AND S YSTEM F ILL FOR S T ARTUP 7.1 Checklist for Proper Inst allation ___ 1. Liebert XDR modules are securely attached to the ca binet and aligned properly wit h the rack. ___ 2. Check to ensure there are no obstructions that prevent the Liebert X DR from openi[...]

  • Page 36

    Starting the Liebert XD System 30 8.0 S TA R T I N G 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. Th e Liebert XDP use r manual is SL-16644 and the Liebert XDC user manual is SL-1667 1. The user manuals were supplied with the un its and are[...]

  • Page 37

    Maintenance 31 9.0 M AINTENANCE Minimal maintenance is required to keep the Liebert XDR operatin g a t optimal levels. The module should be cleaned and checked for da mage. Suggested main tenance includes: • Cooling fins—Clean any dust and debris from the coolin g fins, taking care not to bend them. 9.1 Fluorinated Greenhouse Gas Requirement s [...]

  • Page 38

    Specifications 32 10.0 S PECIFICATIONS T able 6 Liebert XDR specifications Models XDR20B1- * XDR20B1P * (Pre-Charged R-134a) XDR20B1R * Cooling Capacity, Nominal, rated at 104ºF (40°C) EAT & 2400 ft 3 /m (68m 3 /m) 20.5 kW (5.8 tons) Conditions 55°F (13°C) entering fluid tempera ture 50°F (10°C) or lower dew point Dimensions, inches (mm) [...]

  • Page 39

    [...]

  • Page 40

    Ensuring The Hi gh A vai lab ilit y Of Mission-Critic al Dat a And App lic ations. Emerson Net work P ower , the global leader in enabling business-critical continuity , ensures network re siliency and adaptabilit y through a family of technologies—inc luding Liebert power and cooling technologies—that prot ect and suppor t business-critical sy[...]