Lenovo ThinkSystem Heavy Duty Full Depth 48U User manual

ThinkSystem Heavy Duty Full Depth 48U Rack
Cabinet
User Guide
Machine Type: 7D E

First Edition (July 2021)
© Copyright Leno o 2021.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is deli ered pursuant to a General Ser ices
Administration (GSA) contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925.

Contents
Contents . . . . . . . . . . . . . . . . . i
Chapter 1. Introduction . . . . . . . . . 1
Features and specifications . . . . . . . . . . . 1
Chapter 2. Rack cabinet
components . . . . . . . . . . . . . . . 3
Parts listing . . . . . . . . . . . . . . . . . 3
Neptune DWC RM100 in-rack Coolant Distribution
Unit (CDU) configuration . . . . . . . . . . . . 4
Rack cabinet options. . . . . . . . . . . . . .
Rear Door Heat eXchanger for 48U Rack . . . .
48U Heavy Duty Rack Extension . . . . . . 10
Cable management brackets . . . . . . . . 12
Power distribution units and console
switches . . . . . . . . . . . . . . . . 14
Chapter 3. Rack cabinet setup . . . . 15
Space planning . . . . . . . . . . . . . . . 15
Unpack the rack cabinet . . . . . . . . . . . 1
Install the front stabilizer and recirculation
prevention plate. . . . . . . . . . . . . . . 24
Install 48U Heavy Duty Rack Extension. . . . . . 25
Install the baying kit . . . . . . . . . . . . . 34
Install nuts on the mounting flanges . . . . . . . 41
Install cage nuts with a flat-blade
screwdriver. . . . . . . . . . . . . . . 41
Install cage nuts with insertion tool . . . . . 42
Install the rack grounding kit . . . . . . . . . . 43
Set up Rear Door Heat eXchanger for 48U Rack . . 4
Complete setup of Rear Door Heat eXchanger
48U that comes with the rack. . . . . . . . 48
Replace a regular door with Rear Door Heat
eXchanger for 48U . . . . . . . . . . . . 51
Water specifications for the secondary cooling
loop . . . . . . . . . . . . . . . . . 3
Fill the heat exchanger with water . . . . . . 73
Instal a 0/1U device into the rack . . . . . . . . 78
Instal a 0U device . . . . . . . . . . . . 80
Install a 1U PDU or console switch to the rack
side. . . . . . . . . . . . . . . . . . 81
Instal a 1U device into the side pocket . . . . 82
Chapter 4. Managing cables and
hoses . . . . . . . . . . . . . . . . . . 85
Routing cables/hoses for water-cooled system . . 89
Raised-floor environment . . . . . . . . . 90
Raised-floor and non-raised-floor
environments . . . . . . . . . . . . . . 92
Chapter 5. Hardware remo al,
installation and con ersion . . . . . . 93
Removing and installing the side covers . . . . . 93
Remove a side cover . . . . . . . . . . . 93
Install a side cover . . . . . . . . . . . . 93
Installing, removing, and converting the door . . . 95
Remove and install a door . . . . . . . . . 95
Reverse a door . . . . . . . . . . . . . 97
Rear Door Heat eXcahnger for 48U Rack
replacement . . . . . . . . . . . . . . . . 104
Drain the heat exchanger of water . . . . . . 104
Remove Rear Door Heat eXcahnger for 48U
Rack . . . . . . . . . . . . . . . . . 110
Install Rear Door Heat eXcahnger for 48U
Rack . . . . . . . . . . . . . . . . . 114
Fill the heat exchanger with water . . . . . . 121
Replace the door latch . . . . . . . . . . 127
Installing and removing 48U Heavy Duty Rack
Extension . . . . . . . . . . . . . . . . . 128
Install 48U Heavy Duty Rack Extension . . . . 128
Remove 48U Heavy Duty Rack Extension . . . 135
Installing and removing power distribution units or
switches . . . . . . . . . . . . . . . . . 141
Install and remove a 0U PDU . . . . . . . . 141
Install or remove a 1U device into or from the
rack side. . . . . . . . . . . . . . . . 143
Installing and removing a 1U device in/from
the side pocket . . . . . . . . . . . . . 147
Install and remove the outriggers . . . . . . . . 149
Remove the outriggers . . . . . . . . . . 149
Install the outriggers . . . . . . . . . . . 151
Installing and removing cable management
brackets. . . . . . . . . . . . . . . . . . 153
Remove a cable management bracket . . . . 153
Install a cable management bracket . . . . . 15
Appendix A. Getting help and
technical assistance . . . . . . . . . . 161
Before you call . . . . . . . . . . . . . . . 1 1
Contacting Support . . . . . . . . . . . . . 1 2
Appendix B. Notices. . . . . . . . . . 163
Trademarks . . . . . . . . . . . . . . . . 1 4
Index . . . . . . . . . . . . . . . . . . 165
© Copyright Lenovo 2021 i

ii ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

Chapter 1. Introduction
See this topic for information about ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet.
Figure 1. ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet
Features and specifications
See this topic for features and specifications of ThinkSystem Heavy Duty Full Depth 42U Rack Cabinet.
Features
Table 1. Features
Optional device capacity • 0U PDU:
– Without rack extension: Four units
– With rear rack extension: Six units
• 1U optional devices rack side/side pocket: eight units
Extension capacity Up to two units of rack extension are supported.
Cooling enhancement ThinkSystem Rear Door Heat eXchanger for 48U Rack
© Copyright Lenovo 2021 1

Dimension and weight
Table . Dimension
mm inches
Without package
Height 2277 90
Width (with outriggers) 770 31
Width (without outriggers) 00 24
Depth 1200 47
With package
Height 2472 97
Width 1100 43
Depth 17 0 9
Table 3. Weight
KG lbs
Empty rack cabinet with front door 183 403
Rear door 12 2
Outriggers 8 18
Stabilizer 7 15
Empty rack with one unit of extension 210 4 3
side panels 27 0
Empty rack with two units of extension 2 4 582
Maximal load 1814 3999
Packaging 251 553
Anchor shipping brackets 13
Maximal loaded shipping weight 2335 5148
Rear Door Heat eXchanger for 48U (empty) 49 108
One unit of extension 18 40
Maximal empty rack cabinet weight 319 703
Rear Door Heat eXchanger for 48U (filled) 58 128
Maximal deployed weight 2087 4 01
2ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

Chapter 2. Rack cabinet components
See this topic for components of ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet.
Parts listing
See this topic to learn about parts of ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet.
Figure . Parts listing
Table 4. Heavy Duty Full Depth 4 U Rack Cabinet components
1 Rack cabinet frame 8 Keys (doors and side covers)
2 Rear door 9 Leveling pad
3 Side covers 10 Tools
4 Outriggers (side stabilizers) 11 Fixed caster
5 Front stabilizer 12 Swivel caster
6 Front door 13 Baying kit
7 Door latch
Figure 3. Tool box
© Copyright Lenovo 2021 3

1 20 M C type caged nuts
2 30 M G type caged nuts
3 20 M5 C type caged nuts
4 10 M flanges
5 20 M5 screws
6 20 M screws
7 Wrench for 10, 14, 5, 18, 2
8 Wrench for 8, 9, 2
9 Wrench for 10, 13
10 Nut insertion tool
11 15 Velcro cable ties
12 Grounding kit
Note: Make sure to use the nuts and screws that come in the tool box.
Neptune DWC RM100 in-rack Coolant Distribution Unit (CDU)
configuration
See this topic for the rack configuration when Neptune DWC RM100 in-rack CDU is installed.
Attention: There is some residual water remaining in the CDU secondary circuit after Lenovo manufacturing
integration, test, and draining. Before filling the CDU secondary circuit and rack for the first time, be sure to
flush/rinse the entire secondary loop with clean, bacteria free water (distilled or deionized preferred). After
draining the rinsing fluid, proceed with filling the CDU secondary circuit and rack with water which complies
with the Lenovo Water Quality Specification and comes with the appropriate concentrations of corrosion
inhibitor and biocide.
4ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

Figure 4. In-rack coolant distribution layout - front view
Table 5. In-rack coolant distribution layout - front view
1 Neptune DWC RM100 in-rack CDU
Chapter 2.Rack cabinet components 5

Figure 5. In-rack coolant distribution layout - rear view
Table 6. In-rack coolant distribution layout - rear view
1 Neptune DWC PSU manifold 2 Neptune DWC RM100 in-rack CDU
Rack cabinet options
See this topic to learn about optional components that are supported by ThinkSystem Heavy Duty Full Depth
48U Rack Cabinet.
Rear Door Heat eXchanger for 48U Rack
See this topic to learn about parts of ThinkSystem Rear Door Heat eXchanger for 48U Rack.
6ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

Figure 6. ThinkSystem Rear Door Heat eXchanger for 48U Rack components
Table 7. Rear Door Heat eXchanger components
1 Rear Door Heat eXchanger assembly 7 Lift handles
2 Air-purging valve 8 Lift handle
3 Air-purging tool 9 Serial number
4 Door latch 10 Lift handle
5 Latch plate 11 Lower air baffle
6 Hinge kit 12 Upper air baffle
For setup and installation, see “Set up Rear Door Heat eXchanger for 48U Rack” on page 4 .
Chapter 2.Rack cabinet components 7

Specifications
Dimension • Depth: 49 mm / 19.5 inches
• Height: : 2275 mm / 89. inches
• Width: 725 mm / 28.5 inches
Weight Empty: 49 kg / 103. lbs
Air movement Provided by servers and other devices in the rack
Air temperature drop With high-heat-load devices, up to 25°C (45°F) between the air exiting the rack devices
and the air exiting the heat exchanger.
Water • Source
User-supplied, compliant with specifications in this document
• Pressure
– Normal operation: <137.93 kPa (20 psi)
– Maximum: 89. kPa (100 psi)
• Volume
Approximately 9 liters (2.4 gallons)
• Temperature
– Above dew point
– 18°C ±1°C ( 4.4°F ±1.8°F) for ASHRAE Class 1 Environment
– 22°C ±1°C (71. °F ±1.8°F) for ASHRAE Class 2 Environment
Note: See “Heat exchanger performance” for more information.
• Required water flow rate (as measured at the supply entrance to the heat exchanger)
– Minimum: 22.7 liters ( gallons) per minute
– Maximum: 5 .8 liters (15 gallons) per minute
Heat exchanger performance
The following figure illustrates the diagram of rack air flow and heat exchanger water flow.
8ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

Figure 7. Diagram of rack air flow and heat exchanger water flow
Expected performance of the heat exchanger is illustrated in the following figures for 25°C (77°F) rack
entering air temperature and typical rack air flow of 3840SCFM and 4800SCFM. By selecting the correct rack
power, water inlet temperature, you can achieve the water flow rate (lpm) for 100% heat removal. Water flow
rate (lpm) for 100% heat removal indicates that an amount of heat equivalent to that generated by the
devices has been removed by the heat exchanger and the average air temperature leaving the heat
exchanger is identical to that entering the rack (25°C /77°F in this example).
Chapter 2.Rack cabinet components 9

Heat removal as function of water inlet temperature and water flow rate for the given rack entering air
temperature and air flow rate.
Figure 8. Typical performance of the heat exchanger, 3840SCFM Rack air flow, 5°C Rack entering temperature
Heat removal as function of water inlet temperature and water flow rate for the given rack entering air
temperature and air flow rate.
Figure 9. Typical performance of the heat exchanger, 4800SCFM Rack air flow, 5°C Rack entering temperature
48U Hea y Duty Rack Extension
See this topic to learn about parts of ThinkSystem 48U Heavy Duty Rack Extension.
10 ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

Figure 10. ThinkSystem 48U Heavy Duty Rack Extension
Table 8. ThinkSystem 48U Heavy Duty Rack Extension components
1 One left panel 5 Eight front cover screws
2 One right panel 6 Four top cover screws
3 One top cover 7 Fourteen side panel screws
4 Two front covers
Specifications
Table 9. 48U Heavy Duty Rack Extension specifications
Extension depth 180 mm / 7 inches
Weight 18 kg / 39.7 lbs
Openings There are five 89 (width) x 178 (height) mm openings on each side panel:
• U7 to U11
• U13 to U17
• U25 to U29
• U32 to U3
• U42 to U45
Chapter 2.Rack cabinet components 11

Figure 11. Openings on a extension panel
For installation procedure, see “Install 48U Heavy Duty Rack Extension” on page 25.
Cable management brackets
See this topic to learn about the front cable management brackets.
12 ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

21U front cable management bracket
Figure 1 . 1U front cable management bracket components
1 21U front cable management bracket 2 Six screws
6U front cable management bracket
Figure 13. 6U front cable management bracket components
1 U front cable management bracket 2 Two screws
Chapter 2.Rack cabinet components 13

Rear cable management bracket
Figure 14. Rear cable management bracket components
1 Four screws 2 Rear cable management bracket
For installation procedure, see “Install a cable management bracket” on page 15 .
Power distribution units and console switches
See this topic to learn about the power distribution units and console switches that are supported by the rack
cabinet.
This cabinet supports the following PDUs/switches:
• 0U PDU:
– Without rack extension: Four units
– With rear rack extension: Six units
• 1U optional devices rack side/side pocket: eight units
For a complete list of supported power distribution units, go to
• Power distribution units: https://lenovopress.com/servers/options/pdu
• Console switches: https://lenovopress.com/servers/options/kvm
14 ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide

Chapter 3. Rack cabinet setup
Follow instructions in this topic to setup the rack cabinet.
CAUTION:
The raised floor or slab on which the system will be installed must be capable of supporting the
system's weight. Contact the raised floor tile manufacturer, a structural engineer, or both to erify that
the complete raised floor structure and sub-floor are safe to support the concentrated and distributed
load of the racks and its contents. The e aluation of the slab and any raised floor structure should
consider both the static weight of the rack and its contents, but also the installed weight with any
additional infrastructure such as racks attached cable trays, additional cables, Rear Door Heat
Exchangers, containment structures that rest on the racks, personnel in the space, etc… Depending
on the type of raised floor tile, additional supports, such as pedestals or custom support frames,
might be necessary to maintain the structural integrity of an uncut tile or to restore the integrity of a
tile that is cut for cable or hose entry/exit. Contact the raised floor tile manufacturer, a structural
engineer, or both to ensure that the raised floor tiles and pedestals can support the concentrated
loads.
Special consideration should be gi en to the dynamic/rolling weight of the rack and its contents to
ensure the integrity of the raised floor or slab is not compromised when rolling loaded racks across
the floor. In some cases, load distribution plates may be required to better distribute the dynamic load
of a rolling rack at arious points from the loading dock to the data center and on to the data center
floor. Other things to consider are ramps, lifts/ele ator ratings, hallways, transitions between different
types of flooring or sub-floors, ele ation differences between floors, gaps between ele ator entry
points and the main floors.
Space planning
Follow the guidelines in this topic to make plans for the space that will contain the rack cabinet.
See the following illustration for distances between various components on the bottom of the rack cabinet,
and make plans accordingly.
© Copyright Lenovo 2021 15

Front Rear
Figure 15. Space planning (mm)
Unpack the rack cabinet
See this topic to learn how to unpack the rack cabinet.
S037
CAUTION:
The weight of this part or unit is more than 200 kg (441 lb). It takes specially
trained persons, a lifting de ice, or both to safely lift this part or unit.
Make sure to follow fork-lift truck operating regulations to pre ent o erturning
of the rack cabinet.
Notes:
• Space requirement: You will need minimum of 2885 mm (113. inch) on the rear side of the pallet to
unpack the rack cabinet.
• Tool requirement: You will need one sharp tool.
• Forklift requirements:
Note: Only the front side of the pallet is available for the forklift.
16 ThinkSystem Heavy Duty Full Depth 48U Rack Cabinet User Guide