Dell PowerEdge 21DXJ User manual

Dell™ PowerEdge™ 4820
Installation Guide
Guide d’installation
Installationsanleitung
設置ガイド
Guía de instalación

Dell™ PowerEdge™ 4820
Installation Guide

Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use
of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of data
if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage,
personal injury, or death.
____________________
Information in this document is subject to change without notice.
© 2010 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
is strictly forbidden
Trademarks used in this text: Dell, the DELL logo, and PowerEdge are trademarks of Dell Inc.
Other trademarks and trade names may be used in this document to refer to either the entities claiming
the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and
trade names other than its own.
January 2010 P/N 21DXJ Rev. A00

Contents 3
Contents
Safety Instructions. . . . . . . . . . . . . . . . . . . . . 5
SAFETY: Rack Mounting of Systems . . . . . . . . . 5
Rack Installation Instructions . . . . . . . . . . . . . . . 6
Rack Requirements . . . . . . . . . . . . . . . . . . 6
Before You Begin . . . . . . . . . . . . . . . . . . . 6
Installation Tasks . . . . . . . . . . . . . . . . . . . 7
Recommended Tools and Supplies. . . . . . . . . . 8
Removing and Replacing the Rack Doors . . . . . . 8
Removing and Replacing the Side Panels . . . . . 12
Reversing the Front Door (optional) . . . . . . . . 15
Securing the Rack Leveling Feet . . . . . . . . . . 22
Installing the Rack Stabilizer Feet . . . . . . . . . 24
Adjusting the Rack Posts (optional) . . . . . . . . 26
Routing Cables . . . . . . . . . . . . . . . . . . . 28
Coupling Two Racks . . . . . . . . . . . . . . . . . . . 33

4Contents

Installation Guide 5
Safety Instructions
Use the following safety guidelines to ensure your own personal safety and
to help protect your system and working environment from potential damage.
For complete safety and regulatory information, see the safety instructions
that shipped with your system. Warranty information might be included in
this document or as a separate document.
SAFETY: Rack Mounting of Systems
Observe the following precautions for rack stability and safety. Also refer to
the rack installation documentation accompanying the system and the rack
for specific caution statements and procedures.
Systems are considered to be components in a rack. "Component" refers to
any system as well as to various peripherals or supporting hardware.
CAUTION: Instructions for Rack-Mounted Systems:
• Your rack kit has been approved only for the rack cabinet provided.
It is your responsibility to ensure that installation of the equipment
into any other rack complies with all applicable standards. Dell disclaims
all liability and warranties with respect to combinations of equipment
with any other rack.
• Before installing your equipment in a rack, install all front and side
stabilizers. Failure to install stabilizers can allow the rack to tip over.
• Always load from the bottom up, and load the heaviest items first.
• Do not overload the AC power supply branch circuit that provides
power to the rack.
• Do not stand or step on any components in the rack.

6Installation Guide
Rack Installation Instructions
This installation guide provides instructions for trained service technicians
installing a 48-unit (U) rack. Information includes assembling the rack,
coupling two 48-U racks, and routing cables through the rack. The 48-U rack
can be installed using the recommended tools.
Before attempting this installation, you should read through this entire
procedure carefully.
Rack Requirements
CAUTION: The 48-U rack meets the specifications of American National Standards
Institute (ANSI)/Electronic Industries Association (EIA) standard ANSI/EIA-310-D-92,
Consumer Electronics Association (CEA) Standard CEA-310-E, International
Electrotechnical Commission (IEC) 297, and Deutsche Industrie Norm (DIN) 41494.
Before You Begin
WARNING: Before you begin installing your rack, carefully read "Important
Safety Information," as well as the safety instructions that came with the rack.
WARNING: When installing multiple systems in a rack, complete all of the
procedures for the current system before attempting to install the next system.
WARNING: Rack cabinets can be extremely heavy and move easily on the
casters. The cabinet has no brakes. Use extreme caution while moving the rack
cabinet. Retract the leveling feet when relocating the rack cabinet. Avoid long or
steep inclines, rough surfaces, or ramps where loss of cabinet control may occur.
Extend the leveling feet for support and to prevent the cabinet from rolling.
WARNING: Avoid rolling the rack cabinet over rough surfaces. Hard impacts to
the casters could cause them to break, and the rack could become unstable and
tip over.
WARNING: Do not attempt to move your rack with components installed.If you
move a fully loaded rack on a slightly uneven floor surface, the rack may become
unstable and tip over.

Installation Guide 7
Important Safety Information
Observe the safety precautions in the following subsections when installing
your system in the rack.
WARNING: You must strictly follow the procedures in this document to protect
yourself as well as others who may be involved. Your system may be very large
and heavy, and proper preparation and planning are important to prevent injury to
yourself and to others. This becomes increasingly important when systems are
installed high up in the rack.
Rack Stabilizer Feet
WARNING: Installing systems in a rack without the front and side stabilizer feet
installed could cause the rack to tip over, potentially resulting in bodily injury
under certain circumstances. Therefore, always install the stabilizer feet before
installing components in the rack.
WARNING: After installing systems in a rack, never pull more than one system
out of the rack on its slide assemblies at one time. The weight of more than one
extended system could cause the rack to tip over and cause injury.
The stabilizer feet help prevent the rack from tipping over when a system
or other component is pulled out of the rack with the slide assemblies
fully extended.
Installation Tasks
Installing a rack cabinet involves performing the following tasks:
1
Removing and replacing the rack doors
2 Removing and replacing the side panels
3 Reversing the front door and badge (optional)
4 Securing the leveling feet
5 Installing the stabilizer feet
6 Adjusting the rack posts (optional)
7 Routing cables through the rack
8 Coupling two racks (optional)

8Installation Guide
Recommended Tools and Supplies
You may need the following tools and supplies to install the rack:
• #2 Phillips screwdriver
• Flat head screwdriver
• 12-mm wrench
• Needle-nose pliers
• 4-mm Allen wrench (if you want to reverse the direction that the front
door opens)
• Keys to the rack doors and side panels
• 13-mm wrench (for rack removal from pallet)
• 17-mm wrench (for rack removal from pallet)
Removing and Replacing the Rack Doors
WARNING: Because of the size and weight of the rack cabinet doors,
never attempt to remove or install them by yourself.
WARNING: When storing the doors, lay the doors flat so they cannot fall over and
accidentally injure someone.
Removing the Front Door
1 Pull the door latch and open the front door all the way (see Figure 1-1).
2 While holding the door, pull the hinge pin upward so that it clears the
door’s hinge-pin housing (see Figure 1-1).
The hinge pin’s retention clip prevents the hinge from being pulled out of
the hinge body.

Installation Guide 9
Figure 1-1. Removing the Front Door
3 While holding the hinge pin out of the door’s hinge-pin housing, pull
the door slightly away from the rack so that the door clears the hinge body.
4 Release the hinge pin.
5 Lift the door upward so that the door clears the bottom hinge post.
WARNING: Due to the size and weight of the door, it is recommended that you lay
the removed door flat with its outer surface facing upward.
6 Lay the door in a safe location with the door’s outer surface facing upward
to help prevent damage to the door’s badge and cosmetic coating.
1 door latch 2 hinge pin
3 hinge body 4 hinge-pin housing
4
2
3
1

10 Installation Guide
Replacing the Front Door
To replace the front door, perform the steps for removal in reverse.
Opening and Removing the Back Doors
WARNING: Because of the size and weight of the rack cabinet doors, never
attempt to remove or install them by yourself.
1 Turn the door handle and open the back doors (see Figure 1-2).
Figure 1-2. Opening the Back Doors
1 door handle 2 back door (2)
2
1

Installation Guide 11
2 Remove the right back door.
a While supporting the door, pull the pin for the top hinge out of the
door’s hinge-pin housing (see Figure 1-3).
You will hear a click as you pull the pin out of the door’s hinge-pin
housing. The hinge pins are designed to prevent them from being
pulled out of the hinge body.
b Repeat step a for the bottom hinge.
c Pull the door away from the rack.
Figure 1-3. Removing the Back Doors
WARNING: Due to the size and weight of the door, it is recommended that you lay
the removed door flat with its outer surface facing upward.
1 hinge pin 2 hinge body
3 hinge-pin housing
1
2
3

12 Installation Guide
d Lay the door in a safe location with the door’s outer surface
facing upward.
Laying the door flat with the outer surface facing upward helps
prevent damage to its cosmetic coating.
e Repeat step a through step d for the left back door.
Replacing the Back Doors
To replace the back doors, perform the steps for removal in reverse.
Removing and Replacing the Side Panels
CAUTION: For stand-alone racks, reinstalling the side panels is necessary
before running systems in the rack to ensure proper cooling within the rack.
NOTE: You must remove the lower side panels in order to install the side
stabilizer feet.
NOTE: Although removing the side panels is not mandatory for installing
systems in a rack, having the sides open makes it easier to install slide assemblies
and support rails and to reverse the direction that the front door opens.
Removing the Upper Side Panels
1 Pull both latches up and swing the bottom end of the panel away
from the rack.
2 Grasp firmly on each side of the panel.
3 Lift the panel upward until the panel lip clears the top of the rack.
4 Lay the panel in a safe location with the panel’s outer surface facing
upward to help prevent damage to its cosmetic coating.
5 Repeat step 1 through step 4 for the other upper side panel.
Replacing the Upper Side Panels
1 Lift the upper side panel up onto the rack, hooking the panel lip over
the top of the rack (see Figure 1-4).
2 Swing the bottom of the panel downward onto the rack.
3 Press the panel into the rack until both latches lock into place.

Installation Guide 13
Figure 1-4. Replacing the Upper Side Panels
Removing the Lower Side Panels
1 Pull both latches down and allow the side panel to swing outward slightly
at the top.
2 Firmly grasp both sides of the panel.
3 Lift the panel upward until the panel hooks clear the holes in the bottom
of the rack frame.
4 Place the panel in a safe location with the panel’s outer surface facing
upward to help prevent damage to its cosmetic coating.
5 Repeat step 1 through step 4 for the other lower side panel.
1 panel lip 2 upper side panel (2)
3 latches (2)
2
3
1

14 Installation Guide
Replacing the Lower Side Panels
1 Lower the panel into the rack, inserting the back panel hook into the back
hole in the bottom of the rack frame and the front hook into the
corresponding hole in the front of the rack frame (see Figure 1-5).
2 Swing the top end of the panel towards the rack.
3 Press the panel into the rack until both latches lock into place.
Figure 1-5. Replacing the Lower Side Panels
1 panel hook (2) 2 latch (2)
3 lower side panel (2)
1
2
3

Installation Guide 15
Reversing the Front Door (optional)
NOTE: Use a 4-mm Allen wrench to remove the front-door hinge bodies from the
rack and reinstall them on the side opposite their original positions. You might need
a stepladder in order to access the Allen bolt that secures the top hinge body to the
rack.
To reverse the direction that the front door opens, complete the following
steps:
1
Remove the front door (see "Removing the Front Door" on page 8).
2 Remove the side panels (see "Removing and Replacing the Side Panels" on
page 12).
3 Reverse the top hinge body.
a Pull the hinge pin upward slightly so that you can access the retention
clip (see Figure 1-6).
b Using the needle-nose pliers, remove the retention clip, and slide the
hinge pin out of the hinge body.

16 Installation Guide
Figure 1-6. Removing the Front-Door Hinges
c
Remove the hinge spring from the hinge body.
d Place the hinge pin, retention clip, and spring in a safe location.
e Using the 4-mm Allen wrench, remove the Allen bolts that secure
the hinge body to the rack, and place the bolts with the hinge pin,
retention clip, and body spring.
f Rotate the hinge body 180 degrees so that the hinge-pin holes are now
on the right side of the hinge body (see Figure 1-7).
1 hinge pin 2 top hinge body
3 bottom hinge 4 hinge post
5 retention clip 6 body spring
1
6
5
2
3
4

Installation Guide 17
Figure 1-7. Reversing the Top and Bottom Hinges
1 hinge pin 2 top hinge body
3 spring 4 retention clip
5 hinge post 6 bottom hinge body
7 front of rack
2
3
4
1
5
6
7

18 Installation Guide
g Locate the top bolt holes in the right side of the rack, and fasten
the hinge body to the right side of the rack with the Allen bolts.
h Insert the spring between the top and bottom hinge-pin holes in
the bottom hinge body.
i Slide the hinge pin into the hinge body.
j Insert the retention clip through the hinge so that the retention clip
is below the spring.
4 Reverse the bottom hinge body.
a Remove the Allen bolts that secure the hinge body to the rack,
and place the bolts in a safe location.
b Rotate the hinge body 180 degrees so that the hinge posts are now on
the other side of the hinge body (see Figure 1-7).
c Locate the bottom bolt holes in the right side of the rack, and use
the Allen bolts to fasten the hinge body to the right side of the rack.
5 Rotate the front door 180 degrees so that its hinge-pin housings are on
the right side (see Figure 1-8).