Lenovo ThinkSystem Rear Door Heat eXchanger V2 User Manual
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Lenovo ThinkSystem Rear Door Heat eXchanger V2 User Manual

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ThinkSystem Rear Door Heat eXchanger V2
User Guide
Machine Type: 1756
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Summary of Contents for Lenovo ThinkSystem Rear Door Heat eXchanger V2

  • Page 1 ThinkSystem Rear Door Heat eXchanger V2 User Guide Machine Type: 1756...
  • Page 2 First Edition (July 2021) © Copyright Lenovo 2021. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration (GSA) contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.

  • Page 3: Table Of Contents

    Chapter 3. Routing cables/hoses for Index ....65 water-cooled system ..33 © Copyright Lenovo 2021...
  • Page 4 ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 5: Chapter 1. Rear Door Heat Exchanger V2

    Chapter 1. Rear Door Heat eXchanger V2 See this topic to learn about parts of ThinkSystem Rear Door Heat eXchanger V2. Figure 1. ThinkSystem Rear Door Heat eXchanger V2 components Table 1. Rear Door Heat eXchanger components Rear Door Heat eXchanger assembly...
  • Page 6 100% indicates that the heat exchanger not only removed all of the heat generated by the devices but further cooled the air so that the average air temperature leaving the rack is actually lower than that entering the rack. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 7 Figure 2. Typical performance of the heat exchanger, 30 kW heat load As described in “Water specifications for the secondary cooling loop” on page 17, a given water temperature may be used only if the system that is supplying the water is able to measure the room dew point and automatically adjust the water temperature accordingly.
  • Page 8 ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 9: Chapter 2. Set Up Rear Door Heat Exchanger V2

    Chapter 2. Set up Rear Door Heat eXchanger V2 See this topic to learn how to install and set up ThinkSystem Rear Door Heat eXchanger V2. About this task Follow the instructions in the section corresponding to the installation scenario: •...

  • Page 10: Complete Setup Of Rear Door Heat Exchanger V2 That Comes With The Rack

    Eye protection should be worn for this procedure. Complete setup of Rear Door Heat eXchanger V2 that comes with the rack See this topic to learn how to complete setup of ThinkSystem Rear Door Heat eXchanger V2 when it comes already installed to the rack. Procedure Step 1.
  • Page 11 Figure 4. Removing the supporting brackets Step 2. Make sure that one specially trained person holds onto the rear door heat exchanger and guides the rack down the ramp. The other specially trained persons must guide the rack down the ramp by holding onto the rack frame.

  • Page 12: Replace A Regular Door With Rear Door Heat Exchanger V2

    “Fill the heat exchanger with water” on page Replace a regular door with Rear Door Heat eXchanger V2 See this topic to learn how to replace a regular rear door with ThinkSystem Rear Door Heat eXchanger V2. Procedure Step 1.
  • Page 13 Figure 7. Removing a door Step 3. Remove the two door hinges and the two doorstops. Chapter 2 Set up Rear Door Heat eXchanger V2...
  • Page 14 Figure 9. Removing the door latch Step 5. Align the holes in the latch plate with those in the two clip nuts; then, secure the latch plate in place with two M6 screws. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 15 Figure 10. Installing the latch plate Step 6. Install the upper air baffle. Figure 11. Installing the upper air baffle Remove the two screws that secure the rear cable access cover, and remove the cover. Align the upper air baffle with the slot, and secure it with three screws. Chapter 2 Set up Rear Door Heat eXchanger V2...
  • Page 16 Align the lower air baffle to the bottom cable slot, and secure it with four screws as illustrated. Figure 13. Installing the lower air baffle Step 9. Secure the bottom hinge assembly to the rack cabinet with eight screws. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 17 Figure 14. Installing the bottom hinge assembly Step 10. Face the bottom side of the carton, remove the carton top, and slit the two carton corners on your right-hand side with a knife. Then, fold the right carton panel down to the ground, and rotate the threes carton inserts down.
  • Page 18 Step 11. With three people, rotate the heat exchanger to vertical on the three carton inserts. Then, remove the inner and outer hose access panels while one person hold the heat exchanger. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 19 Figure 16. Removing the hose access panels Step 12. Hold the heat exchanger with three people on the handles/spots as illustrated. Then, carefully lift the heat exchanger and turn it upright. Figure 17. Lifting the heat exchanger with three people Handles that the first person hold on to Spots that the third person hold on to Handles that the second person hold on to...
  • Page 20 Figure 18. Installing the heat exchanger to the rack cabinet Step 14. Hold the heat exchanger in place with two people. Insert the top hinge bracket pin to the heat exchanger; then, secure the bracket with three screws. ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 21: Water Specifications For The Secondary Cooling Loop

    Figure 19. Installing the top hinge bracket After this task is completed Proceed to “Fill the heat exchanger with water” on page Water specifications for the secondary cooling loop It is of crucial importance that water supplied to the heat exchanger meet the requirements listed in this topic.
  • Page 22 • Pressure The water pressure in the secondary loop must be less than 690 kPa (100 psi). Normal operating pressure at the heat exchanger must be 414 kPa (60 psi) or less. ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 23: Water Delivery Specifications For Secondary Loops

    • Flow rate The flow rate of the water in the system must be in the range of 23 - 57 liters (6 - 15 gallons) per minute. Pressure drop versus flow rate for heat exchangers (including quick-connect couplings) is defined as approximately 103 kPa (15 psi) at 57 liters (15 gallons) per minute.
  • Page 24 0, flow impedance quick connects. Alternatively, these quick connects can be eliminated and replaced with a hose barb connection. Following are some examples of the most common solutions. • Primary and secondary cooling loops ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 25 Figure 20. Primary and secondary cooling loops This figure shows a typical cooling solution and identifies the components of the primary cooling loop and the secondary cooling loop. • Coolant distribution unit with a fabricated facilities solution Chapter 2 Set up Rear Door Heat eXchanger V2...
  • Page 26 This figure shows an example of a facilities fabricated solution. The actual number of heat exchangers that are connected to a secondary loop depends on the capacity of the coolant distribution unit that is running the secondary loop. • Coolant distribution unit with off-the-shelf supplier solutions ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 27 Figure 22. Coolant distribution unit that uses off-the-shelf supplier solutions Notes: Supplier-built coolant distribution unit (CDU) suggested features: – Temperature and flow metering (monitoring) – Leak detection or water level sensing and shutdown – Local and remote monitoring and control –...
  • Page 28 • Use a 50.8 mm (2 in.) or larger supply pipe to provide the correct flow to three 19 mm (0.75 in.) supply hoses, with a 100 kW coolant distribution unit (CDU). ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 29 • Use a 63.5 mm (2.50 in.) or larger supply pipe to provide the correct flow to four 19 mm (0.75 in.) supply hoses, with a 120 kW CDU. • Use an 88.9 mm (3.50 in.) or larger supply pipe to provide the correct flow to nine 19 mm (0.75 in.) supply hoses, with a 300 kW CDU.
  • Page 30 The coupling size is 19 mm (0.75 in.). • The supply hose must have a Parker (male) quick-coupling nipple, part number SH6-63-W, or equivalent. The return hose must have a Parker (female) quick-connect coupling, part number SH6-62-W, or equivalent. ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 31: Fill The Heat Exchanger With Water

    The connections must minimize water spill and air inclusion into the system when they are disconnected. Fill the heat exchanger with water See this topic to learn how to fill ThinkSystem Rear Door Heat eXchanger V2 with water. About this task S038 CAUTION: Eye protection should be worn for this procedure.
  • Page 32 Loosen and remove the cap from the air-purging valve. Press in on the valve stem of the air-purging valve to purge the nitrogen from the heat exchanger. Continue holding in the valve stem until the pressure is released. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 33 Step 4. Align the supply hose coupling with the supply manifold, push it in and pull the collar backward until it locks in place with an audible click. Then, repeat the same procedure on the return hose and manifold. Figure 29. Supply and return hoses and manifold couplings •...
  • Page 34 When there is a steady stream of liquid into the container from the air-purging tool, disconnect the tool from the heat exchanger. Attention: If water drips from the air-purging valve after you remove the air-purging tool, reattach the tool and disconnect it again to seal the valve. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 35 Figure 31. Removing the air-purging tool Step 8. Install the valve cap back to the air-purging valve. Figure 32. Installing the valve cap Chapter 2 Set up Rear Door Heat eXchanger V2...
  • Page 36 Step 10. Align the slots on the outer hose access panel with the hooks on the outer side of the heat exchanger, and lower the panel to attach it to the heat exchanger. Optionally, secure the panel with a M4 screw. Figure 34. Installing the outer hose access panel ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 37: Chapter 3. Routing Cables/Hoses For Water-Cooled System

    • Route signal cables at the rear of the rack so that they enter or exit the cabinet through the top and bottom air baffles. Figure 35. Managing cables with the upper air baffle Figure 36. Managing cables with the lower air baffle © Copyright Lenovo 2021...

  • Page 38: Raised-Floor Environment

    Figure 38. Option for hoses in adjacent racks to share a single hole in the floor (from the top, looking down) Step 1. Remove the floor tile under the rack that will have an access hole cut into it. ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 39: Raised-Floor And Non-Raised-Floor Environments

    Step 2. Cut an access hole in the floor tile; then, reinstall the floor tile. The access hole for the supply and return hoses must be a minimum of 200 mm (8 in.) long x 100 mm (4 in.) wide. Notes: •...
  • Page 40 ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 41: Chapter 4. Rear Door Heat Exchanger V2 Replacement

    Attention: Wear safety goggles or other eye protection whenever you fill, drain, or purge air or nitrogen from the heat exchanger. Procedure Step 1. Lift and remove the inner hose access panel from the heat exchanger. © Copyright Lenovo 2021...
  • Page 42 Remove the screw that secures the panel if applicable, then lift and remove the panel from the heat exchanger. Figure 41. Removing the outer hose access pane Step 3. Disconnect the return and supply hose from the manifolds, and remove them from the heat exchanger. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 43 Figure 42. Supply and return hoses and manifold couplings • Remove the supply hose assembly ( ) from the supply manifold-coupling ( • Remove the return hose assembly ( ) from the return manifold-coupling ( Step 4. Remove the caps from the air-purging and drain valve. Chapter 4 Rear Door Heat eXchanger V2 replacement...
  • Page 44 Step 6. Insert one end of the air-purging tool extension hose into the center of air-purging valve stem at the top of the heat exchanger to allow air to enter the manifolds. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 45 Figure 45. Inserting the air-purging tool extension hose Step 7. Attach the air-purging tool to the drain valve at the bottom of the heat exchanger, and place the drain end into a 2-liter (or larger) container to catch the water. Figure 46.
  • Page 46 Figure 47. Removing the air-purging tool extension hose Step 9. Remove the air-purging tool from the drain valve. Figure 48. Removing the air-purging tool Step 10. Install the two caps back to the air-purging and drain valve. ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 47: Remove Rear Door Heat Exchanger V2

    Figure 49. Installing the valve caps Remove Rear Door Heat eXchanger V2 About this task S036 18 - 32 kg (39 - 70 lb) 32 - 55 kg (70 - 121 lb) CAUTION: Use safe practices when lifting. S010 Chapter 4 Rear Door Heat eXchanger V2 replacement...
  • Page 48 R004 CAUTION: See the instructions in the rack documentation before you install devices, remove devices, or relocate the rack. S038 ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 49 CAUTION: Eye protection should be worn for this procedure. Procedure Step 1. Drain the water from the heat exchanger completely (see “Drain the heat exchanger of water” on page 37). Step 2. Hold the heat exchanger in place with two people, and remove the three screws that secure the top hinge bracket to the heat exchanger.
  • Page 50 Spots that the third person hold on to Handles that the second person hold on to Step 4. Lift the heat exchanger with three people as described in the previous step, and remove it from the rack cabinet. ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 51: Install Rear Door Heat Exchanger V2

    Figure 52. removing the heat exchanger from the rack cabinet Install Rear Door Heat eXchanger V2 See this topic to learn how to install ThinkSystem Rear Door Heat eXchanger V2. About this task S036 18 - 32 kg (39 - 70 lb)
  • Page 52 R004 CAUTION: See the instructions in the rack documentation before you install devices, remove devices, or relocate the rack. S038 ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 53 CAUTION: Eye protection should be worn for this procedure. Procedure Step 1. Face the bottom side of the carton, remove the carton top, and slit the two carton corners on your right-hand side with a knife. Then, fold the right carton panel down to the ground, and rotate the threes carton inserts down.
  • Page 54 Step 2. With three people, rotate the heat exchanger to vertical on the three carton inserts. Then, remove the inner and outer hose access panels while one person hold the heat exchanger. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 55 Figure 54. Removing the hose access panels Step 3. Hold the heat exchanger with three people on the handles/spots as illustrated. Then, carefully lift the heat exchanger and turn it upright. Figure 55. Lifting the heat exchanger with three people Handles that the first person hold on to Spots that the third person hold on to Handles that the second person hold on to...
  • Page 56 Figure 56. Installing the heat exchanger to the rack cabinet Step 5. Hold the heat exchanger in place with two people. Insert the top hinge bracket pin to the heat exchanger; then, secure the bracket with three screws. ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 57: Fill The Heat Exchanger With Water

    After this task is completed Proceed to “Fill the heat exchanger with water” on page Fill the heat exchanger with water See this topic to learn how to fill ThinkSystem Rear Door Heat eXchanger V2 with water. About this task S038 CAUTION: Eye protection should be worn for this procedure.
  • Page 58 Figure 59. Removing the outer hose access panel Step 3. Purge the nitrogen that has been filled in the hose from the hose. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 59 Figure 60. Purging nitrogen Loosen and remove the cap from the air-purging valve. Press in on the valve stem of the air-purging valve to purge the nitrogen from the heat exchanger. Continue holding in the valve stem until the pressure is released. Step 4.
  • Page 60 When there is a steady stream of liquid into the container from the air-purging tool, disconnect the tool from the heat exchanger. Attention: If water drips from the air-purging valve after you remove the air-purging tool, reattach the tool and disconnect it again to seal the valve. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 61 Figure 63. Removing the air-purging tool Step 8. Install the valve cap back to the air-purging valve. Figure 64. Installing the valve cap Chapter 4 Rear Door Heat eXchanger V2 replacement...

  • Page 62: Replace The Door Latch

    Optionally, secure the panel with a M4 screw. Figure 66. Installing the outer hose access panel Replace the door latch See this topic to learn how to replace the door latch of Rear Door Heat eXchanger. ThinkSystem Rear Door Heat eXchanger V2 User Guide...
  • Page 63 Procedure Step 1. Remove the screw that secure the latch to the heat exchanger; then, secure the replacement unit with the same screw. Figure 67. Replacing the door latch Chapter 4 Rear Door Heat eXchanger V2 replacement...
  • Page 64 ThinkSystem Rear Door Heat eXchanger V2 User Guide...

  • Page 65: Appendix A. Getting Help And Technical Assistance

    Gathering information needed to call Support If you believe that you require warranty service for your Lenovo product, the service technicians will be able to assist you more efficiently if you prepare before you call. You can also see http:// datacentersupport.lenovo.com/warrantylookup...

  • Page 66: Contacting Support

    Electronic Service Request. Submitting an Electronic Service Request will start the process of determining a solution to your problem by making the pertinent information available to the service technicians. The Lenovo service technicians can start working on your solution as soon as you have completed and submitted an Electronic Service Request.

  • Page 67: Appendix B. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.

  • Page 68: Trademarks

    Trademarks Lenovo, the Lenovo logo, ThinkSystem, Flex System, System x, NeXtScale System, and x Architecture are trademarks of Lenovo in the United States, other countries, or both. Intel and Intel Xeon are trademarks of Intel Corporation in the United States, other countries, or both.

  • Page 69: Index

    Getting help telephone numbers hardware service and support telephone numbers ThinkSystem Rear Door Heat eXchanger V2 help trademarks notices Water specifications © Copyright Lenovo 2021...
  • Page 70 ThinkSystem Rear Door Heat eXchanger V2 User Guide...

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