IBM 8408-44E, 8408-E8E, Power Systems Site And Hardware Planning

Power Systems

Site and hardware planning

IBM

Power Systems

Site and hardware planning

IBM

Note

Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on page 177, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823.

This edition applies to IBM Power Systems servers that contain the POWER8 processor and to all associated models.

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Safety notices

Safety notices may be printed throughout this guide: v DANGER notices call attention to a situation that is potentially lethal or extremely hazardous to

people.

v CAUTION notices call attention to a situation that is potentially hazardous to people because of some

existing condition.

v Attention notices call attention to the possibility of damage to a program, device, system, or data.

World Trade safety information

Several countries require the safety information contained in product publications to be presented in their national languages. If this requirement applies to your country, safety information documentation is included in the publications package (such as in printed documentation, on DVD, or as part of the product) shipped with the product. The documentation contains the safety information in your national language with references to the U.S. English source. Before using a U.S. English publication to install, operate, or service this product, you must first become familiar with the related safety information documentation. You should also refer to the safety information documentation any time you do not clearly understand any safety information in the U.S. English publications.

Replacement or additional copies of safety information documentation can be obtained by calling the IBM Hotline at 1-800-300-8751.

German safety information

Das Produkt ist nicht für den Einsatz an Bildschirmarbeitsplätzen im Sinne § 2 der Bildschirmarbeitsverordnung geeignet.

Laser safety information

IBM®servers can use I/O cards or features that are fiber-optic based and that utilize lasers or LEDs.

Laser compliance

IBM servers may be installed inside or outside of an IT equipment rack.

DANGER: When working on or around the system, observe the following precautions:

Electrical voltage and current from power, telephone, and communication cables are hazardous. To avoid a shock hazard: v If IBM supplied the power cord(s), connect power to this unit only with the IBM provided power cord.

Do not use the IBM provided power cord for any other product.

v Do not open or service any power supply assembly. v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this

product during an electrical storm.

v The product might be equipped with multiple power cords. To remove all hazardous voltages,

disconnect all power cords. – For AC power, disconnect all power cords from their AC power source. – For racks with a DC power distribution panel (PDP), disconnect the customer’s DC power source to

the PDP.

v When connecting power to the product ensure all power cables are properly connected.

– For racks with AC power, connect all power cords to a properly wired and grounded electrical

outlet. Ensure that the outlet supplies proper voltage and phase rotation according to the system rating plate.

– For racks with a DC power distribution panel (PDP), connect the customer’s DC power source to

the PDP. Ensure that the proper polarity is used when attaching the DC power and DC power return wiring.

v Connect any equipment that will be attached to this product to properly wired outlets. v When possible, use one hand only to connect or disconnect signal cables. v Never turn on any equipment when there is evidence of fire, water, or structural damage. v Do not attempt to switch on power to the machine until all possible unsafe conditions are corrected. v Assume that an electrical safety hazard is present. Perform all continuity, grounding, and power checks

specified during the subsystem installation procedures to ensure that the machine meets safety requirements.

v Do not continue with the inspection if any unsafe conditions are present. v Before you open the device covers, unless instructed otherwise in the installation and configuration

procedures: Disconnect the attached AC power cords, turn off the applicable circuit breakers located in the rack power distribution panel (PDP), and disconnect any telecommunications systems, networks, and modems.

DANGER:

v Connect and disconnect cables as described in the following procedures when installing, moving, or

opening covers on this product or attached devices. To Disconnect:

1. Turn off everything (unless instructed otherwise).

2. For AC power, remove the power cords from the outlets.

3. For racks with a DC power distribution panel (PDP), turn off the circuit breakers located in the

PDP and remove the power from the Customer's DC power source.

4. Remove the signal cables from the connectors.

5. Remove all cables from the devices.

To Connect:

1. Turn off everything (unless instructed otherwise).

2. Attach all cables to the devices.

3. Attach the signal cables to the connectors.

4. For AC power, attach the power cords to the outlets.

5. For racks with a DC power distribution panel (PDP), restore the power from the Customer's DC

power source and turn on the circuit breakers located in the PDP.

6. Turn on the devices. Sharp edges, corners and joints may be present in and around the system. Use care when handling

equipment to avoid cuts, scrapes and pinching. (D005)

(R001 part 1 of 2):

DANGER: Observe the following precautions when working on or around your IT rack system:

v Heavy equipment–personal injury or equipment damage might result if mishandled. v Always lower the leveling pads on the rack cabinet. v Always install stabilizer brackets on the rack cabinet. v To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest devices

in the bottom of the rack cabinet. Always install servers and optional devices starting from the bottom of the rack cabinet.

v Rack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top of

rack-mounted devices. In addition, do not lean on rack mounted devices and do not use them to stabilize your body position (for example, when working from a ladder).

vi Site and hardware planning

v Each rack cabinet might have more than one power cord.

– For AC powered racks, be sure to disconnect all power cords in the rack cabinet when directed to

disconnect power during servicing.

– For racks with a DC power distribution panel (PDP), turn off the circuit breaker that controls the

power to the system unit(s), or disconnect the customer’s DC power source, when directed to disconnect power during servicing.

v Connect all devices installed in a rack cabinet to power devices installed in the same rack cabinet. Do

not plug a power cord from a device installed in one rack cabinet into a power device installed in a different rack cabinet.

v An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of the

system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock.

(R001 part 2 of 2):

CAUTION:

v Do not install a unit in a rack where the internal rack ambient temperatures will exceed the

manufacturer's recommended ambient temperature for all your rack-mounted devices.

v Do not install a unit in a rack where the air flow is compromised. Ensure that air flow is not blocked

or reduced on any side, front, or back of a unit used for air flow through the unit.

v Consideration should be given to the connection of the equipment to the supply circuit so that

overloading of the circuits does not compromise the supply wiring or overcurrent protection. To provide the correct power connection to a rack, refer to the rating labels located on the equipment in the rack to determine the total power requirement of the supply circuit.

v (For sliding drawers.) Do not pull out or install any drawer or feature if the rack stabilizer brackets are

not attached to the rack. Do not pull out more than one drawer at a time. The rack might become unstable if you pull out more than one drawer at a time.

v (For fixed drawers.) This drawer is a fixed drawer and must not be moved for servicing unless specified

by the manufacturer. Attempting to move the drawer partially or completely out of the rack might cause the rack to become unstable or cause the drawer to fall out of the rack.

Safety notices vii

CAUTION: Removing components from the upper positions in the rack cabinet improves rack stability during relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a room or building.

v Reduce the weight of the rack cabinet by removing equipment starting at the top of the rack

cabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as you received it. If this configuration is not known, you must observe the following precautions:

– Remove all devices in the 32U position (compliance ID RACK-001 or 22U (compliance ID RR001)

and above. – Ensure that the heaviest devices are installed in the bottom of the rack cabinet. – Ensure that there are little-to-no empty U-levels between devices installed in the rack cabinet

below the 32U (compliance ID RACK-001 or 22U (compliance ID RR001) level, unless the

received configuration specifically allowed it.

v If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from

the suite.

v If the rack cabinet you are relocating was supplied with removable outriggers they must be

reinstalled before the cabinet is relocated.

v Inspect the route that you plan to take to eliminate potential hazards. v Verify that the route that you choose can support the weight of the loaded rack cabinet. Refer to the

documentation that comes with your rack cabinet for the weight of a loaded rack cabinet.

v Verify that all door openings are at least 760 x 230 mm (30 x 80 in.). v Ensure that all devices, shelves, drawers, doors, and cables are secure. v Ensure that the four leveling pads are raised to their highest position. v Ensure that there is no stabilizer bracket installed on the rack cabinet during movement. v Do not use a ramp inclined at more than 10 degrees. v When the rack cabinet is in the new location, complete the following steps:

– Lower the four leveling pads. – Install stabilizer brackets on the rack cabinet. – If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest

position to the highest position.

v If a long-distance relocation is required, restore the rack cabinet to the configuration of the rack

cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent. Also lower the leveling pads to raise the casters off of the pallet and bolt the rack cabinet to the pallet.

(R002)

(L001)

DANGER: Hazardous voltage, current, or energy levels are present inside any component that has this

label attached. Do not open any cover or barrier that contains this label. (L001)

(L002)

viii Site and hardware planning

DANGER: Rack-mounted devices are not to be used as shelves or work spaces. (L002)

1

2

!

1

2

1 2

3

4

(L003)

or

Safety notices ix

1

2

3

4

or

DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003)

(L007)

CAUTION: A hot surface nearby. (L007)

(L008)

x Site and hardware planning

CAUTION: Hazardous moving parts nearby. (L008)

All lasers are certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for class 1 laser products. Outside the U.S., they are certified to be in compliance with IEC 60825 as a class 1 laser product. Consult the label on each part for laser certification numbers and approval information.

CAUTION: This product might contain one or more of the following devices: CD-ROM drive, DVD-ROM drive, DVD-RAM drive, or laser module, which are Class 1 laser products. Note the following information:

v Do not remove the covers. Removing the covers of the laser product could result in exposure to

hazardous laser radiation. There are no serviceable parts inside the device.

v Use of the controls or adjustments or performance of procedures other than those specified herein

might result in hazardous radiation exposure.

(C026)

CAUTION: Data processing environments can contain equipment transmitting on system links with laser modules that operate at greater than Class 1 power levels. For this reason, never look into the end of an optical fiber cable or open receptacle. Although shining light into one end and looking into the other end of a disconnected optical fiber to verify the continuity of optic fibers many not injure the eye, this procedure is potentially dangerous. Therefore, verifying the continuity of optical fibers by shining light into one end and looking at the other end is not recommended. To verify continuity of a fiber optic cable, use an optical light source and power meter. (C027)

CAUTION: This product contains a Class 1M laser. Do not view directly with optical instruments. (C028)

CAUTION: Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following information: laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. (C030)

CAUTION: The battery contains lithium. To avoid possible explosion, do not burn or charge the battery.

Do Not:

v ___ Throw or immerse into water v ___ Heat to more than 100°C (212°F) v ___ Repair or disassemble

Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local regulations. In the United States, IBM has a process for the collection of this battery. For information, call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C003)

Safety notices xi

CAUTION: Regarding IBM provided VENDOR LIFT TOOL:

v Operation of LIFT TOOL by authorized personnel only. v LIFT TOOL intended for use to assist, lift, install, remove units (load) up into rack elevations. It is

not to be used loaded transporting over major ramps nor as a replacement for such designated tools like pallet jacks, walkies, fork trucks and such related relocation practices. When this is not practicable, specially trained persons or services must be used (for instance, riggers or movers).

v Read and completely understand the contents of LIFT TOOL operator's manual before using.

Failure to read, understand, obey safety rules, and follow instructions may result in property damage and/or personal injury. If there are questions, contact the vendor's service and support. Local paper manual must remain with machine in provided storage sleeve area. Latest revision manual available on vendor's web site.

v Test verify stabilizer brake function before each use. Do not over-force moving or rolling the LIFT

TOOL with stabilizer brake engaged.

v Do not move LIFT TOOL while platform is raised, except for minor positioning. v Do not exceed rated load capacity. See LOAD CAPACITY CHART regarding maximum loads at

center versus edge of extended platform.

v Only raise load if properly centered on platform. Do not place more than 200 lb (91 kg) on edge of

sliding platform shelf also considering the load's center of mass/gravity (CoG).

v Do not corner load the platform tilt riser accessory option. Secure platform riser tilt option to main

shelf in all four (4x) locations with provided hardware only, prior to use. Load objects are designed to slide on/off smooth platforms without appreciable force, so take care not to push or lean. Keep riser tilt option flat at all times except for final minor adjustment when needed.

v Do not stand under overhanging load. v Do not use on uneven surface, incline or decline (major ramps). v Do not stack loads. v Do not operate while under the influence of drugs or alcohol. v Do not support ladder against LIFT TOOL. v Tipping hazard. Do not push or lean against load with raised platform. v Do not use as a personnel lifting platform or step. No riders. v Do not stand on any part of lift. Not a step. v Do not climb on mast. v Do not operate a damaged or malfunctioning LIFT TOOL machine. v Crush and pinch point hazard below platform. Only lower load in areas clear of personnel and

obstructions. Keep hands and feet clear during operation.

v No Forks. Never lift or move bare LIFT TOOL MACHINE with pallet truck, jack or fork lift. v Mast extends higher than platform. Be aware of ceiling height, cable trays, sprinklers, lights, and

other overhead objects.

v Do not leave LIFT TOOL machine unattended with an elevated load. v Watch and keep hands, fingers, and clothing clear when equipment is in motion. v Turn Winch with hand power only. If winch handle cannot be cranked easily with one hand, it is

probably over-loaded. Do not continue to turn winch past top or bottom of platform travel. Excessive unwinding will detach handle and damage cable. Always hold handle when lowering, unwinding. Always assure self that winch is holding load before releasing winch handle.

v A winch accident could cause serious injury. Not for moving humans. Make certain clicking sound

is heard as the equipment is being raised. Be sure winch is locked in position before releasing handle. Read instruction page before operating this winch. Never allow winch to unwind freely. Freewheeling will cause uneven cable wrapping around winch drum, damage cable, and may cause serious injury. (C048)

Power and cabling information for NEBS (Network Equipment-Building System) GR-1089-CORE

The following comments apply to the IBM servers that have been designated as conforming to NEBS (Network Equipment-Building System) GR-1089-CORE:

xii Site and hardware planning

The equipment is suitable for installation in the following:

v Network telecommunications facilities v Locations where the NEC (National Electrical Code) applies

The intrabuilding ports of this equipment are suitable for connection to intrabuilding or unexposed wiring or cabling only. The intrabuilding ports of this equipment must not be metallically connected to the interfaces that connect to the OSP (outside plant) or its wiring. These interfaces are designed for use as intrabuilding interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require isolation from the exposed OSP cabling. The addition of primary protectors is not sufficient protection to connect these interfaces metallically to OSP wiring.

Note: All Ethernet cables must be shielded and grounded at both ends.

The ac-powered system does not require the use of an external surge protection device (SPD).

The dc-powered system employs an isolated DC return (DC-I) design. The DC battery return terminal shall not be connected to the chassis or frame ground.

The dc-powered system is intended to be installed in a common bonding network (CBN) as described in GR-1089-CORE.

Safety notices xiii

xiv Site and hardware planning

Site and hardware physical planning overview

Successful installation requires effective planning of your physical and operational environment. You are the most valuable resource in site planning because you know where and how your system, and devices attached to it, will be used.

Site preparation for the complete system is the responsibility of the customer. The primary task of your site planner is to ensure that each system is installed so that it can operate and be serviced efficiently.

This topic collection provides the basic information you need to plan for your system installation. It provides an overview of each planning task, as well as valuable reference information useful throughout the performance of these tasks. Depending on the complexity of the system you ordered and your existing computing resource, you might not need to perform all the steps noted here.

First, with the help of your systems engineer, sales representative, or with the help of those coordinating your installation, list the hardware for which you need to plan. Use the summary of your order to help you when making your list. This list is now your “To Do” list. You can use the Planning task checklist to assist you.

While you are responsible for planning, vendors, contractors, and your sales representative are also available to help with any aspect of the planning. For some system units, a customer service representative will install your system unit and verify correct operation. Some system units are considered customer-installed. If you are not sure, check with your sales representative.

The physical planning section of this topic collection provides the physical characteristics of many system units, and associated products. For information on products not included in this topic collection, contact your sales representative or your authorized dealer.

Before proceeding with planning, ensure that the hardware and software you have chosen meets your needs. Your sales representative is available to answer questions.

While this information is for hardware planning, the system memory and disk storage needed are a function of the software to be used, therefore some things to consider are listed below. Information on software products is generally in or with the software Licensed Program Product itself.

In assessing the adequacy of hardware and software, consider the following: v Available disk space and system memory for accommodating software, online documentation, and data

(including future growth needs resulting from additional users, more data, and new applications)

v Compatibility of all devices v Compatibility of software packages with each other and with the hardware configuration v Adequate redundancy or backup capabilities in hardware and software v Software portability to the new system, if necessary v Prerequisites and corequisites of chosen software have been satisfied v Data to be transferred to the new system

2 Site and hardware planning

Planning activities

You can use this information to help you plan the physical installation for your server.

Proper planning for your system will facilitate a smooth installation and fast system start-up. Sales and installation planning representatives are also available to help you with installation planning.

As part of your planning activity, you will make decisions about where to locate your server and who will operate the system

Planning task checklist

Use this checklist to document your planning progress.

Working with your sales representative, establish completion dates for each of the tasks. You might want to review your planning schedule periodically with your sales representative.

Table 1. Planning task checklist

Planning step Person responsible Target date Completion date

Plan your office or computer room layout (physical planning)

Prepare for power cords and electrical needs

Prepare for cables and cabling Create or modify communications

networks Perform building alterations, as

needed Prepare maintenance, recovery,

and security plans Develop an education plan Order supplies Prepare for system delivery

General considerations

Planning your system requires attention to the numerous details.

When determining the placement of your system, consider the following:

v Adequate space for the devices. v Working environment of personnel who will be using the devices (their comfort, ability to access the

devices, supplies, and reference materials).

v Adequate space for maintaining and servicing the devices. v Physical security requirements necessary for the devices. v Weight of the devices. v Heat output of the devices. v Operating temperature requirements of the devices.

v Humidity requirements of the devices. v Air flow requirements of the devices. v Air quality of the location where the devices will be used. For example, excess dust could damage

your system.

Note: The system and devices are designed to operate in normal office environments. Dirty or other poor environments might damage the system or the devices. You are responsible for providing the proper operating environment.

v Altitude limitations of the devices. v Noise emission levels of the devices. v Any vibration of equipment near where the devices will be placed. v Paths of power cords.

The following pages contain the information you need to evaluate these considerations.

Site preparation and physical planning guidelines

These guidelines help you prepare your site for the delivery and installation of your server.

Information contained in the Site preparation and physical planning might be helpful for preparing your data center for the arrival of a server.

The Site preparation and physical planning topic covers the following information:

Site selection, building and space considerations

v Site selection v Access v Static electricity and floor resistance v Space requirements v Floor construction and floor loading v Raised floors v Conductive contamination v Computer room layout

Site environment, safety, and security

v Vibration and shock v Lighting v Acoustics v Electromagnetic compatibility v Computer room location v Material and data storage protection v Emergency planning for continuous operations

Electrical power and grounding

v General power information v Power quality v Voltage and frequency limits v Power load v Power source

4 Site and hardware planning

v Dual power installations

Air conditioning

v Air conditioning determination v General guidelines for data centers v Temperature and humidity design criteria v Temperature and humidity recording instruments v Relocation and temporary storage v Acclimation v System air distribution

Planning for the installation of rear door heat exchangers

v Planning for the installation of rear door heat exchangers v Heat exchanger specifications v Water specifications for the secondary cooling loop v Water delivery specifications for secondary loops v Layout and mechanical installation v Suggested sources for secondary loop components

Communications

v Planning for communications

Planning activities 5

6 Site and hardware planning

Site and hardware planning

This topic collection provides specifications that site planners can use to assess the physical site and operational requirements necessary to prepare your site for a new server. This information includes specifications for servers and expansion units, plugs and receptacles, and cables as well as information about power-distribution units and uninterruptible power supplies.

Hardware specification sheets

Hardware specification sheets provide detailed information for your hardware, including dimensions, electrical, power, temperature, environment, and service clearances.

Server specifications

Server specifications provide detailed information for your server, including dimensions, electrical, power, temperature, environment, and service clearances.

Select the appropriate models to view the specifications for your server.

Model 8408-44E and 8408-E8E server specifications

Server specifications provide detailed information for your server, including dimensions, electrical, power, temperature, environment, and service clearances.

Use the following specifications to plan for your server.

Note: Due to special safety and servicing considerations, IBM does not support installation of 8408-44E or 8408-E8E server nodes higher than the EIA 29 position (location of the rail that supports the rack-mounted server) in any IBM or non-IBM rack. These special considerations include, but are not limited to, requirements for multiple service personnel during installation, additional required equipment such as an IBM approved lift tool and OSHA approved, non-conductive ladders, as well as specialized instructions.

Table 2. Dimensions for the 8408-44E and 8408-E8E

Width Depth Height EIA units Weight

448 mm (17.6 in.) 776 mm (30.6 in.) 175 mm (6.9 in.) 4 69 kg (152 lb)

1. Preliminary data is subject to change.

Table 3. Shipping dimensions for the 8408-44E and 8408-E8E (including pallet)

Width Depth Height Weight

1080 mm (42.5 in.) 635 mm (25.0 in.) 489 mm (19.25 in.) 94.8 kg (209 lb)

1. Preliminary data is subject to change.

Table 4. Electrical characteristics for the 8408-44E and 8408-E8E

Electrical characteristics Properties

AC rated voltage and frequency

DC rated voltage 192 - 400 V dc (FC EB2N) (8408-E8E)

2,5

1

1, 7

200 - 240 V ac at 50 or 60 Hz plus or minus 3 Hz (FC EB2M)

Table 4. Electrical characteristics for the 8408-44E and 8408-E8E

1, 7

(continued)

Electrical characteristics Properties

Thermal output (maximum)

3,6

11940 BTU/hr (8408-E8E) 13140 BTU/hr (8408-44E)

Maximum power consumption

3,6

3500 W (8408-E8E) 3850 W (8408-44E)

Maximum kVA

4,6

3.57 (8408-E8E)

3.9 (8408-44E)

Phase Single

Notes:

1. Normal operation with four power supplies. Each power supply has an IEC 320 C20 inlet. If your system uses

two PDUs for redundancy, plug power supplies E1 and E2 to PDU A and power supplies E3 and E4 to PDU B.

2. The power supplies automatically accept any voltage with the published, rated-voltage range. If multiple power

supplies are installed and operating, the power supplies draw approximately equal current from the utility (electrical supply) and provide approximately equal current to the load.

3. Power draw and heat load vary greatly by configuration. When you plan for an electrical system, it is important

to use the maximum values. However, when you plan for heat load, you can use the IBM Systems Energy Estimator to obtain a heat output estimate based on a specific configuration. For more information, see The IBM Systems Energy Estimator website.

4. To calculate the amperage, multiply the kVA by 1000 and divide that number by the operating voltage.

5. Model 8408-E8E and 8408-44E uses four power supply units. Current is shared between the four power supply

units during normal system operation.

6. When operating on only two power supplies, over subscription is not available. In this situation, the maximum

values are 3100 W, 3.16 kVA, and 10580 BTU/hr for the 8408-E8E and 3950 W, 4.0 kVA, and 13481 BTU/hr for the 8408-44E.

7. AC and HVDC power supplies cannot be mixed in the same server or I/O drawer. IBM recommends that AC

products and HVDC products with HVDC PDUs are installed in separate racks. However, AC and HVDC products can be supported in the same rack if all grounding (earthing) is done in accordance with the applicable electrical code or codes. IBM provides documentation for different AC and HVDC products about the disconnecting means for service. If a different disconnecting means is to be used for service of the equipment in a rack with AC-powered and DC-powered products, the disconnecting means must be made clear to service.

Table 5. Environment requirements

Environment requirements

Environment (operating)

Properties Recommended Allowable

1

2,3,4

ASHRAE class A3 (Fourth edition) Airflow direction Front-to-back Temperature 18.0°C – 27.0°C (64.4°F – 80.6°F) 5.0°C – 40.0°C (41.0°F – 104.0°F) Low end moisture -9.0°C (15.8°F) dew point -12.0°C (10.4°F) dew point and 8%

relative humidity

High end moisture 60% relative humidity and 15°C

(59°F) dew point

85% relative humidity and 24.0°C (75.2°F) dew point

Maximum altitude 3050 m (10,000 ft)

Allowable environment (nonoperating)

5

Temperature 5°C - 45°C (45°F - 113°F) Relative humidity 8% to 85% Maximum dew point 27.0°C (80.6°F)

8 Site and hardware planning

Table 5. Environment requirements (continued)

Environment requirements

Environment (shipping)

6

Temperature -40.0°C to 60.0°C (-40°F to 140°F) Relative humidity 5% - 100% (no condensation) Maximum wet bulb temperature 29.0°C (84.2°F)

Environment (storage)

Temperature 1°C - 60°C (33.8°F - 140°F) Relative humidity 5% - 80% (no condensation) Maximum wet bulb temperature 29.0°C (84.2°F)

Notes:

1. IBM provides the recommended operating environment as the long-term operating environment that can result

in the greatest reliability, energy efficiency, and reliability. The allowable operating environment represents where the equipment is tested to verify functionality. Due to the stresses that operating in the allowable envelope can place on the equipment, these envelopes must be used for short-term operation, not continuous operation.

2. Must derate the maximum allowable temperature 1°C (1.8°F) per 175 m (574 ft) above 900 m (2953 ft) up to a

maximum allowable elevation of 3050 m (10000 ft).

3. The minimum humidity level is the larger absolute humidity of the -12°C (10.4°F) dew point and the 8% relative

humidity. These levels intersect at approximately 25°C (77°F). Below this intersection, the dew point (-12°C) represents the minimum moisture level, while above it, the relative humidity (8%) is the minimum. For the upper moisture limit, the limit is the minimum absolute humidity of the dew point and relative humidity that is stated.

4. The following minimum requirements apply to data centers that are operated at low relative humidity:

v Data centers that have do not have ESD floors and where people are allowed to wear non-ESD shoes might

want to consider increasing humidity given that the risk of generating 8 kV increases slightly at 8% relative humidity, when compared to 25% relative humidity.

v All mobile furnishings and equipment must be made of conductive or static dissipative materials and be

bonded to ground.

v During maintenance on any hardware, a properly functioning and grounded wrist strap must be used by any

personnel who comes in contact with information technology (IT) equipment.

5. Equipment that is removed from the original shipping container and is installed, but is powered down. The

allowable non-operating environment is provided to define the environmental range that an unpowered system can experience short term without being damaged.

6. If one or more feature codes that are listed in Table 6 are installed in your system, then the maximum wet bulb

temperature is 28°C (82°F).

Table 6. Supported feature codes that affect environmental requirements

1

Feature codes (FCs) Feature code names

1738 / EQ38 856 GB (IBM i) 10K RPM SAS HDD (Gen2-S) 1752 / EQ52 900 GB (AIX®/Linux) 10K RPM SAS HDD (Gen2-S) 1917 / 1866 146 GB (AIX/Linux) 15K RPM SAS HDD (Gen2-S) 1925 / 1869 300 GB (AIX/Linux) 10K RPM SAS HDD (Gen2-S) 1947 / 1868 139 GB (IBM i) 15K RPM SAS HDD (Gen2-S) 1948 / 1927 283 GB (IBM i) 15K RPM SAS HDD (Gen2-S) 1953 / 1929 300 GB (AIX/Linux) 15K RPM SAS HDD (Gen2-S) 1956 / 1844 283 GB (IBM i) 10K RPM SAS HDD (Gen2-S) 1962 / 1817 571 GB (IBM i) 10K RPM SAS HDD (Gen2-S) 1964 / 1818 600 GB (AIX/Linux) 10K RPM SAS HDD (Gen2-S)

Site and hardware planning 9

Table 6. Supported feature codes that affect environmental requirements1(continued)

Feature codes (FCs) Feature code names

ESD2 / EQD2 1.14 TB (IBM i) 10K RPM SAS HDD (Gen2-S) ESD3 / EQD3 1.2 TB (AIX/Linux) 10K RPM SAS HDD (Gen2-S) ESDU 139 GB (IBM i) 15K RPM SAS HDD (Gen3) ESDT 146 GB (AIX/Linux) 15K RPM SAS HDD (Gen3) ESDA 283 GB (IBM i) 15K RPM SAS HDD (Gen3) ESDB 300 GB (AIX/Linux) 15K RPM SAS HDD (Gen3) ESDS 283 GB (IBM i) 10K RPM SAS HDD (Gen3) ESDR 300 GB (AIX/Linux) 10K RPM SAS HDD (Gen3) ESD4 571 GB (IBM i) 10K RPM SAS HDD (Gen3) ESD5 600 GB (AIX/Linux) 10K RPM SAS HDD (Gen3) ESD8 1.14 TB (IBM i) 10K RPM SAS HDD (Gen3) ESD9 1.2 TB (AIX/Linux) 10K RPM SAS HDD (Gen3) ESEY 283 GB (IBM i) 15K RPM 4KN SAS HDD (Gen2-S) ESEZ 300 GB (AIX/Linux) 15K RPM 4KN SAS HDD (Gen2-S) ESFA 283 GB (IBM i) 15K RPM 4KN SAS HDD (Gen3) ESFB 300 GB (AIX/Linux) 15K RPM 4KN SAS HDD (Gen3) ESFE 571 GB (IBM i) 15K RPM 4KN SAS HDD (Gen3) ESFF 600 GB (AIX/Linux) 15K RPM 4KN SAS HDD (Gen3) ESFN 571 GB (IBM i) 15K RPM 4KN SAS HDD (Gen2-S) ESFP 600 GB (AIX/Linux) 15K RPM 4KN SAS HDD (Gen2-S) ESDE 571 GB (IBM i) 15K RPM SAS HDD (Gen3) ESDF 600 GB (AIX/Linux) 15K RPM SAS HDD (Gen3) ESDN 571 GB (IBM i) 15K RPM SAS HDD (Gen2-S) ESDP 600 GB (AIX/Linux) 15K RPM SAS HDD (Gen2-S)

Note:

1. Any feature code that is listed in this table and is installed in your system decreases the maximum wet bulb

temperature that is allowed during shipping from 29°C (84°F) to 28°C (82°F).

Table 7. Noise emissions for the 8408-44E

Product description

Declared A-weighted sound power level, L

(B)

Wad

Operating Idle Operating Idle

Model 8408-44E (2-socket) with a typical workload

7.6

4

(25°C (77°F), 500 m (1640 ft.)).

Model 8408-44E (2-socket) with a typical workload with acoustical doors (25°C

7.0 6.5 56 47

(77°F), 500 m (1640 ft.)).

10 Site and hardware planning

1, 2, 3

Declared A-weighted sound pressure level, L

(dB)

pAm

7.2 60 54

Table 7. Noise emissions for the 8408-44E

Product description

Declared A-weighted sound power level, L

(B)

Wad

1, 2, 3

(continued)

Declared A-weighted sound pressure level, L

(dB)

pAm

Model 8408-44E (4-socket) with a typical workload

8.0

4

7.2 62 54 (25°C (77°F), 500 m (1640 ft.)).

Model 8408-44E (4-socket) with a maximum workload

8.8

4

8.8

4

70 70 (25°C (77°F), 500 m (1640 ft.)).

Model 8408-44E (4-socket) with a maximum workload

9.7

4

9.7

4

79 79 (35°C (95°F), 3050 m (10000 ft.)).

Model 8408-44E (4-socket) with a maximum workload with acoustical doors

8.9

4

8.9

4

73 73 (35°C (95°F), 3050 m

(10000 ft.)).

Notes:

1. Declared level L

is the upper-limit A-weighted sound power level. Declared level L

Wad

is the mean

pAm

A-weighted emission sound pressure level that is measured at the 1-meter bystander positions.

2. All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.

3. 10 dB (decibel) equals 1 B (bel).

4. Notice: Government regulations (such as those prescribed by OSHA or European Community Directives) might

govern noise level exposure in the workplace and might apply to you and your server installation. This IBM system is available with an optional acoustical door feature that can help reduce the noise that is emitted from this system. The actual sound pressure levels in your installation depend upon various factors, including the number of racks in the installation; the size, materials, and configuration of the room where you designate the racks to be installed; the noise levels from other equipment; the room ambient temperature, and employees' location in relation to the equipment. Further, compliance with such government regulations also depends upon various extra factors, including the duration of employees' exposure and whether employees wear hearing protection. IBM recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations.

Table 8. Noise emissions for the 8408-E8E

Product description

Declared A-weighted sound power level, L

(B)

Wad

Operating Idle Operating Idle

Model 8408-E8E (2-socket) with a typical workload

7.6

4

(25°C (77°F), 500 m (1640 ft.)).

Model 8408-E8E (4-socket) with a maximum workload

8.1

4

(25°C (77°F), 500 m (1640 ft.)).

1, 2, 3

7.6

8.1

Declared A-weighted sound pressure level, L

(dB)

pAm

4

60 60

65 65

Site and hardware planning 11

Table 8. Noise emissions for the 8408-E8E

Product description

Declared A-weighted sound power level, L

(B)

Wad

1, 2, 3

(continued)

Declared A-weighted sound pressure level, L

(dB)

pAm

Notes:

1. Declared level L

is the upper-limit A-weighted sound power level. Declared level L

Wad

is the mean

pAm

A-weighted emission sound pressure level that is measured at the 1-meter bystander positions.

2. All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.

3. 10 dB (decibel) equals 1 B (bel).

4. Notice: Government regulations (such as those prescribed by OSHA or European Community Directives) might

govern noise level exposure in the workplace and might apply to you and your server installation. This IBM system is available with an optional acoustical door feature that can help reduce the noise that is emitted from this system. The actual sound pressure levels in your installation depend upon various factors, including the number of racks in the installation; the size, materials, and configuration of the room where you designate the racks to be installed; the noise levels from other equipment; the room ambient temperature, and employees' location in relation to the equipment. Further, compliance with such government regulations also depends upon various extra factors, including the duration of employees' exposure and whether employees wear hearing protection. IBM recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations.

Table 9. Service clearances

Clearances Front Rear Side

1

Top

1

Operating 762 mm (30 in.) 762 mm (30 in.) Nonoperating 762 mm (30 in.) 762 mm (30 in.) 762 mm (30 in.) 762 mm (30 in.)

1

Side and top clearances are optional during operation.

Electromagnetic compatibility compliance: CISPR 22; CISPR 24; FCC, CFR 47, Part 15 (US); VCCI (Japan); Directive 2004/108/EC (EEA); ICES-003, Issue 4 (Canada); ACMA radio communications standard (Australia, New Zealand); CNS 13438 (Taiwan); Radio Waves Act, MIC Rule No. 210 (Korea); Commodity Inspection Law (China); TCVN 7189 (Vietnam); MoCI (Saudi Arabia); SI 961 (Israel); GOST R

51318.22, 51318.24 (Russia)

Safety compliance: UL 60950-1:2007 Underwriters Laboratory; CAN/CSA22.2 No. 60950-1-07; EN60950-1:2006 European Norm; IEC 60950-1 2nd Edition and all National Differences

Special Hardware Management Console considerations

When the server is managed by an HMC, the console must be provided within the same room and within 8 m (26 ft) of the server. For more considerations, see Installing and configuring the HMC.

Note: As an alternative to the local HMC requirement, you can provide a supported device, such as a PC, with connectivity and authority to operate through a remotely attached HMC. This local device must be in the same room and within 8 m (26 ft) of your server. This local device must provide functional capabilities that are equivalent to the HMC that it replaces. This local device is needed by the service representative to service the system.

Model 8408-44E Technical Documentation for EU Regulation 617/2013:

International Business Machines Corporation

New Orchard Road

Armonk, New York 10504

http://www.ibm.com/customersupport/

12 Site and hardware planning

Table 10. System characteristics

System characteristics Properties

Product type Computer server Year first manufactured 2016 Noise levels (declared A-weighted sound power

level of the computer)

8.1 bels (B)

Table 11. Power characteristics.

Power characteristics Properties

Internal/external power supply efficiency 80 PLUS Verification and Testing Report 1025 W

80 PLUS Verification and Testing Report 2000 W Maximum power (watts) 3850 W Idle state power (watts) 1559 W (maximum configured system) Sleep mode power (watts) N/A for servers Off mode power (watts) 50 W

Table 12. Test parameters for measurements

Test parameters Properties

Test voltage and frequency 230 V ac at 50 Hz or 60 Hz Total harmonic distortion of the electricity

supply system

The maximum harmonic content of the input voltage waveform is equal to or less than 2%. The qualification is compliant with EN 61000-3-2.

Information and documentation on the instrumentation setup and circuits that are used for electrical testing

Measurement methodology that is used to determine information in this document

ENERGY STAR Test Method for Computer Servers; ECOVA Generalized Test Protocol for Calculating the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies

ENERGY STAR Servers Version 2.0 Program Requirements; ECOVA Generalized Test Protocol for Calculating the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies

Model 8408-E8E Technical Documentation for EU Regulation 617/2013:

International Business Machines Corporation New Orchard Road Armonk, New York 10504 http://www.ibm.com/customersupport/

Table 13. System characteristics

System characteristics Properties

Product type Computer server Year first manufactured 2015 Noise levels (declared A-weighted sound power

level of the computer)

Table 14. Power characteristics

1

Power characteristics Properties

Internal/external power supply efficiency 80 PLUS Verification and Testing Report 1400 W Maximum power (watts) 3420 W

8.1 bels (B)

Site and hardware planning 13

Table 14. Power characteristics1(continued)

Power characteristics Properties

Idle state power (watts) 1449 W Sleep mode power (watts) N/A for servers Off mode power (watts) 45 W

1. Preliminary data is subject to change.

Table 15. Test parameters for measurements

Test parameters Properties

Test voltage and frequency 230 V ac at 50 Hz or 60 Hz Total harmonic distortion of the electricity

supply system

Information and documentation on the instrumentation setup and circuits that are used for electrical testing

Measurement methodology that is used to determine information in this document

The maximum harmonic content of the input voltage waveform is equal to or less than 2%. The qualification is compliant with EN 61000-3-2.

ENERGY STAR Test Method for Computer Servers; ECOVA Generalized Test Protocol for Calculating the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies

ENERGY STAR Servers Version 2.0 Program Requirements; ECOVA Generalized Test Protocol for Calculating the Energy Efficiency of Internal Ac-Dc and Dc-Dc Power Supplies

Expansion unit and migration tower specifications

Expansion unit and migration tower specifications provide detailed information for your hardware, including dimensions, electrical, power, temperature, environment, and service clearances.

Select a model to view its specifications.

5887 expansion unit

Hardware specifications provide detailed information for your expansion unit, including dimensions, electrical, power, temperature, environment, and service clearances.

Table 16. Dimensions for rack-mounted expansion unit

Weight (with drives installed) Width

25.4 kg (56.0 lb) 448.6 mm (17.7 in.) 530 mm (20.9 in.) 87.4 mm (3.4 in.)

Table 17. Electrical

Electrical characteristics Properties

kVA (maximum) Rated voltage and frequency 100 - 127 V ac or 200 - 240 V ac at 50 - 60 Hz Thermal output (maximum) Power requirements (maximum) 300 W Power factor 0.94 Leakage current (maximum) 1.2 mA Phase 1

1

All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.

1

Depth (including front bezel) Height (with support rails)

0.32

1024 Btu/hr

14 Site and hardware planning

Table 18. Temperature requirements

Operating Nonoperating

10°C - 38°C (50°F - 100.4°F)

1

The maximum 38°C (100.4°F) temperature must be derated 1°C (1.8 °F) per 137 m (450 ft) above 1295 m (4250 ft).

1

-40°C - 60°C (-40°F - 140°F)

Table 19. Environmental requirements

Environment Operating Nonoperating Maximum altitude

Noncondensing humidity 20% - 80% (allowable)

40% - 55% (recommended)

8% - 80% (including

condensing)

2134 m (7000 ft) above sea level

Wet bulb temperature 21°C (69.8°F) 27°C (80.6°F)

Table 20. Noise emissions

1

Properties Operating Idle

L

WAd

L

(1-meter bystander) 43 dB 43 dB

pAm

1

Single drawer in standard 19-inch rack with 24 hard drives, nominal environmental conditions, and no front or rear

6.0 bels 6.0 bels

doors on rack.

For a description of noise emission values, see Acoustics.

All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.

Table 21. Service clearances for rack-mounted expansion unit

Front Back Sides

914 mm (36 in.) 914 mm (36 in.) 914 mm (36 in.) Side and top clearances are optional during operation.

Safety compliance: This hardware is designed and certified to meet the following safety standards: UL 60950; CAN/CSA C22.2 No. 60950–00; EN 60950; IEC 60950 including all National Differences

EMX0 PCIe Gen3 I/O expansion drawer (feature code EMX0)

Hardware specifications provide detailed information for your expansion unit, including dimensions, electrical, power, temperature, environment, and service clearances.

Table 22. Dimensions for rack-mounted expansion unit

Width Depth Height Weight (maximum)

482 mm (19 in.) 802 mm (31.6 in.)

Table 23. Electrical

1,2,3

173 mm (6.8 in.), 4 EIA

units

54.4 kg (120 lb)

Electrical characteristics Properties

AC rated voltage and frequency 100 - 127 V ac or 200 - 240 V ac at 50 or 60 Hz plus or

minus 3 Hz (FC EMXA) DC rated voltage 192 - 400 V dc (FC EMXB) Thermal output (maximum) 1740 BTU/hr Maximum power consumption 510 W Maximum kVA 0.520

Site and hardware planning 15

Table 23. Electrical

Electrical characteristics Properties

Phase Single

Notes:

1. The power supplies for AC or DC voltage do not change. Only the power chunnel is different. The power

chunnel uses internal cables to carry power from the rear of the system node to the power supplies that are in the front of the system node.

2. All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.

3. AC and HVDC power supplies cannot be mixed in the same server or I/O drawer. IBM recommends that AC

products and HVDC products with HVDC PDUs are installed in separate racks. However, AC and HVDC products can be supported in the same rack if all grounding (earthing) is done in accordance with the applicable electrical code or codes. IBM provides documentation for different AC and HVDC products about the disconnecting means for service. If a different disconnecting means is to be used for service of the equipment in a rack with AC-powered and DC-powered products, the disconnecting means must be made clear to service.

Table 24. Environment requirements

Environment Recommended operating Allowable operating Nonoperating

ASHRAE class A3 Airflow direction Front-to-back Temperature Humidity range 5.5°C (42°F) dew point (DP)

Maximum dew point 24°C (75°F) 27°C (80°F) Maximum operating

altitude Shipping temperature -40°C to 60°C (-40°F to

Shipping relative humidity 5% - 100%

1,2,3

(continued)

1

18°C - 27°C (64°F - 80°F) 5°C - 40°C (41°F - 104°F) 1°C - 60°C (34°F - 140°F)

to 60% relative humidity (RH) and 15°C (59°F) dew point

-12.0°C (10.4°F) DP and 8%

- 80% RH

3050 m (10000 ft)

5% - 80% RH

140°F)

1. Derate maximum allowable dry-bulb temperature 1°C per 175 m above 950 m.

Table 25. Service clearances for rack-mounted expansion unit

Front Back Sides

914 mm (36 in.) 914 mm (36 in.) 914 mm (36 in.) Side and top clearances are optional during operation.

Safety compliance: This hardware is designed and certified to meet the following safety standards: UL 60950; CAN/CSA C22.2 No. 60950–00; EN 60950; IEC 60950 including all National Differences.

5147-024, ESLL, and ESLS storage enclosures

Hardware specifications for 5147-024, ESLL, and ESLS storage enclosures provide detailed information for your storage enclosures, including dimensions, electrical, power, temperature, environment, and service clearances.

16 Site and hardware planning

Table 26. Dimensions for storage enclosures

Weight (maximum

Width Depth Height

448.6 mm (17.7 in.) 744.22 mm (29.3 in.) 87.4 mm (3.4 in.)

Table 27. Electrical characteristics

Electrical characteristics Properties

AC rated voltage and frequency 100 - 127 V ac or 200 - 240 V ac at 50 or 60 Hz plus or

minus 3 Hz Thermal output (maximum) 939 BTU/hr Maximum power consumption 275 W Maximum kVA 0.28 Phase Single

Table 28. Environment requirements

Environment Recommended operating Allowable operating Nonoperating

ASHRAE class A3 Airflow direction Front-to-back Temperature Humidity range 5.5°C (42°F) dew point (DP)

Maximum dew point 24°C (75°F) 27°C (80°F) Maximum operating

altitude Shipping temperature -40°C to 60°C (-40°F to

Shipping relative humidity 5% - 100%

1

18°C - 27°C (64°F - 80°F) 5°C - 40°C (41°F - 104°F) 1°C - 60°C (34°F - 140°F)

-12.0°C (10.4°F) DP and 8% to 60% relative humidity (RH) and 15°C (59°F) dew point

- 80% RH

3050 m (10000 ft)

configuration)

37.1 kg (81.8 lb) (ESLL)

31.1 kg (68.6 lb) (5147-024 or ESLS)

5% - 80% RH

140°F)

1. Derate maximum allowable dry-bulb temperature 1°C per 175 m above 950 m.

Table 29. Service clearances for rack-mounted expansion unit

Front Back Sides

914 mm (36 in.) 914 mm (36 in.) 914 mm (36 in.) Side and top clearances are optional during operation.

Safety compliance: This hardware is designed and certified to meet the following safety standards: UL 60950; CAN/CSA C22.2 No. 60950–00; EN 60950; IEC 60950 including all National Differences.

Rack specifications

Rack specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

For non-IBM rack specifications, see Rack installation procedures for racks not purchased at IBM.

Site and hardware planning 17

Select your rack model to view its specifications.

Model 0550 and 9406-830 rack

Rack specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Figure 1. 0550 rack

Figure 2. 0550 rack configuration

Table 30. Dimensions

Maximum configuration weight

644 kg (1417 lb) 650 mm (25.5 in.) 1020 mm (40.0 in. ) 1800 mm (71.0 in. ) 36 The 1.8 meter rack has 10 EIA units of space remaining. This space will be filled with a 5 EIA filler panel, a 3 EIA

filler panel, and two of the 1 EIA filler panels. Because the rack does not have power distribution, the model 9406-830 rack requires a power cord of sufficient length to reach the receptacle. The power cord for model 9406-830 rack must be used to determine the appropriate receptacle.

Width Depth Height EIA units

18 Site and hardware planning

Table 31. Electrical

Electrical characteristics Properties

kVA (maximum) 1.684 Rated voltage and frequency 200 - 240 V ac at 50 - 60 plus or minus 0.5 Hz Thermal output (maximum) 5461 Btu/hr Power requirements (maximum) 1600 W Power factor 0.95 Inrush current 80 A Leakage current (maximum) 3.5 mA Phase 1

Table 32. Service clearance

Front Back Sides Top

762 mm (30 in.) 762 mm (30 in.) 762 mm (30 in.) 762 mm (30 in.) Side and top clearances are optional when operating.

Table 33. Feature code

Feature Code Top rack specify Bottom rack specify PDU support Power cords

1

0550

1

Ten EIA units of space not managed by the configurator.

2

Feature codes 5160, 5161, and 5162.

3

Model 9406-830 does not plug into a power distribution unit.

None None 0 to 4

2

Model 9406-8303, PDU

Model 0551 rack

The 0551 rack specifications provide detailed information for your rack.

The 0551 provides an empty 1.8 m rack (36 EIA units of total space).

Site and hardware planning 19

Figure 3. 0551 rack

Table 34. Dimensions

Maximum configuration weight

The weight of the empty rack is 244 kg (535 lb).

Table 35. Temperature requirements

Operating Nonoperating

10°C - 38°C (50°F - 100.4°F) 1°C - 60°C (33.8°F - 140°F )

Table 36. Environment requirements

Environment Operating Nonoperating

Noncondensing humidity 8% - 80% 8% - 80% Wet bulb temperature 22.8°C (73°F) 22.8°C (73°F) Maximum altitude 3048 m (10000 ft) 3048 m (10000 ft) Noise emissions Rack noise levels are a function of

Width Depth Height

650 mm (25.5 in.) 1020 mm (40.0 in.) 1800 mm (71.0 in.)

Rack noise levels are a function of the number and type of drawers installed. See your server or hardware specifications for specific requirements

the number and type of drawers

installed. See your server or

hardware specifications for specific

requirements

Table 37. Service clearances

Front Back Sides Top

762 mm (30 in. ) 762 mm (30 in.) 762 mm (30 in.) 762 mm (30 in.) Side and top clearances are optional during operation

Notes:

20 Site and hardware planning

1. The 1.8 meter rack has 10 EIA units of space remaining. This space will be filled with a 5 EIA filler

panel, a 3 EIA filler panel, and two of the 1 EIA filler panels. Because the rack does not have power distribution, the model 830 requires a power cord of sufficient length to reach the receptacle. The power cord for model 830 must be used to determine the appropriate receptacle.

2. Acoustic doors are available for the IBM racks. Feature code 6248 is available for the 0551 and

7014-T00 racks. Feature code 6249 is available for the 0553 and 7014-T42 racks. The overall sound reduction is approximately 6 dB. The doors add 381 mm (15 in.) to the depth of the racks.

3. For a description of noise emission values, see Acoustics.

Caster and leveler locations

Figure 4 provides the caster and leveler locations for the 7014-T00, 7014-T42, 0551, 0553 and 0555 racks.

Figure 4. Caster and leveler locations

Model 0551, 0553, 0555, and 7014 rack configurations

The 0551 or 7014-T00 provide a 1.8 meter rack (36 EIA units of total space). The 7014-T42 or 0553 provides a 2.0 meter rack (42 EIA units of total space).

Site and hardware planning 21

Feature code 7884 and 0229

Figure 5. Feature code 7884

Table 38. Feature code 7884

IBM rack Rack, specify code PDU support Power cords

0551

0553

7014

1

4

7884, 0229 0 to 4

2

7884, PDU

3

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total

space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

If units plug into a power distribution unit (PDU), power jumper cord feature code 6458, 6459, 6095, or 9911 is required. If redundant power supply (feature code 5158) is ordered, a second power jumper cord feature code is required.

4

7014-T00 is a 1.8 meter rack with 36 EIA units of total space. 7014-T42 is a 2.0 meter rack with 42 EIA units of total space. The rack includes one PDU, feature code 9188, 9176, 9177, or 9178.

22 Site and hardware planning

Feature code 0230 and 7886

Figure 6. 550 in a rack

Table 39. 550 in a rack

IBM rack Rack, specify code PDU support Power cords

1

7014

1

7014-T00 is a 1.8 meter rack with 36 EIA units of total space. 7014-T42 is a 2.0 meter rack with 42 EIA units of total

0230 and 7886 0 to 4

space. The rack includes one PDU, feature code 9188, 9176, 9177, or 9178.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

If unit plugs into a PDU, two feature code 6458, 6459, 6095, or 9911 power jumper cords are required.

2

PDU

3

Feature codes 0231, 0232, 0241, and 0242

Figure 7. 570 in rack

Site and hardware planning 23

Table 40. 570 in rack

IBM rack Rack, specify code PDU support Power cords

0551

0553

7014

1

3

0231, 0232, 0241, 0242 0 to 4

2

PDU

4

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

7014-T00 is a 1.8 meter rack with 36 EIA units of total space. 7014-T42 is a 2.0 meter rack with 42 EIA units of total space. The rack includes one PDU, feature code 9188, 9176, 9177, or 9178.

4

If unit plugs into a PDU, two feature code 6458, 6459, 6095, or 9911 power jumper cords are required.

Feature code 0123 - 5074 lower expansion unit in rack; feature code 0574 - 5074 equivalent

Figure 8. Feature code 0123

Table 41. Feature code 0123

Bottom rack, specify

IBM rack

1

0551

1

0553

code Rack, specify code PDU support Power cords

0123 0574 0 to 4

2

0123, 0574, PDU

3

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

Feature code 0123 or 0574 do not plug into a PDU.

24 Site and hardware planning

Feature code 0694 - 5094 equivalent

Figure 9. Feature code 0694 - 5094 equivalent

Table 42. Feature code 0694 - 5094 equivalent

IBM rack Rack, specify code PDU support Power cords

1

0551

0553

1

0694 0 to 4

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total

space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

Feature code 0125 does not plug into a PDU.

2

0694, PDU

3

Feature code 0133 - Manufacturing installation in rack (models 9406-800 and 9406-810); feature code 0137 - IBM service representation installation in rack (models 9406-800 and 9406-810)

Figure 10. Feature code 0133

Site and hardware planning 25

Table 43. Feature code 0133

IBM rack Rack, specify code PDU support Power cords

0551

0553

1

01333, 0137

3

0 to 4

2

0133, 0137, PDU

4

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total

space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

This feature provides a rack shelf (2 U) with rail assembly, cable-management-arm assembly, adapter plate, and a

pair of lift covers.

4

If unit plugs into a PDU, two feature code 6458, 6459, 6095, or 9911 power jumper cords are required.

Feature code 0134 - IBM service representation installation in rack; feature code 0138 IBM service representation installation in rack

Figure 11. Feature code 0134

Table 44. Feature code 0134

IBM rack Rack, specify code PDU support Power cords

0551

0553

1

01343, 0138

3

0 to 4

2

0134, 0138, PDU

4

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total

space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

This feature provides a rack shelf (2 U), cable-management-arm assembly, adapter plate, and a pair of lift covers.

4

If unit plugs into a PDU, two feature code 6458, 6459, 6095, or 9911 power jumper cords are required.

26 Site and hardware planning

Feature code 0578 - PCI-X expansion unit in rack

Figure 12. Feature code 0578 - PCI-X expansion unit in rack

Table 45. Feature code 0578 - PCI-X expansion unit in rack

IBM rack Rack, specify code PDU support Power cords

1

0551

0553

1

0578 0 to 4

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total

space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

0578 includes two rack power cords that plug into a PDU.

2

PDU

3

Feature code 0588 - PCI-X expansion unit in rack

Figure 13. Feature code 0588 - PCI-X expansion unit in rack

Table 46. Feature code 0588 - PCI-X expansion unit in rack

IBM rack Rack, specify code PDU support Power cords

0551

0553

0555

1

0588 0 to 4

2

PDU

3

Site and hardware planning 27

Table 46. Feature code 0588 - PCI-X expansion unit in rack (continued)

IBM rack Rack, specify code PDU support Power cords

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total

space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

0588 comes with two rack power cords that plug into a PDU.

Feature code 0595 - PCI-X expansion unit in rack

Table 47. Feature code 0595 - PCI-X expansion unit in rack

IBM rack Rack, specify code PDU support Power cords

0551

0553

1

0595 0 to 4

2

0595, PDU

3

0555

1

0551 is an empty 1.8 meter rack with 36 EIA units of total space. 0553 is a 2.0 meter rack with 42 EIA units of total

space.

2

0551, 0553, and 0555 feature codes 5160, 5161, 5163, and 7188. 7014 feature codes 7176, 7177, 7178, and 7188.

3

If unit plugs into a PDU, feature code 1422 is required. If redundant power supply (feature code 5138) is ordered,

a second feature code 1422 is required.

Note: Supported only on MES orders and includes a rack shelf with rail assembly, adapter plate, and cable-management-arm assembly.

Model 0551 and 9406-270 rack

Server specifications provide detailed information for your server, including dimensions, electrical, power, temperature, environment, and service clearances.

Pictured is model 0551 and 9406-270 rack. The 0551 consists of two models 9406-270 with 7104 system unit expansions installed in a 1.8 m rack. Specify code 0121 represents the first model 9406-270 in the rack (on the bottom). Specify code 0122 represents the second model 9406-270 in the rack (on the top).

28 Site and hardware planning

Figure 14. Model 0551 and 9406-270 rack

Table 48. Dimensions

Maximum configuration

1

weight

Height Width Depth

403 kg (885 lb) 1800 mm (71.0 in.) 650 mm (25.5 in.) 1020 mm (40.0 in.)

1

Side and top clearances are optional when operating.

Table 49. Electrical

Electrical characteristics Properties

kVA (maximum) 0.789 Rated voltage and frequency 100 - 127 or 200 - 240 V ac at 50 - 60 plus or minus 0.5

Hz Thermal output (maximum) 2560 Btu/hr Power requirements (maximum) 750 W Power factor 0.95 Inrush current 41 A Leakage current (maximum) 3.5 mA Phase 1

Table 50. Temperature requirements

Operating Nonoperating

10 - 38°C (50 - 100.4°F) 1 - 60°C (33.8 - 140°F)

Table 51. Environment requirements

Environment Operating Nonoperating

Wet bulb temperature 23°C (73.4°F) 27°C (80.6°F)

Site and hardware planning 29

Table 51. Environment requirements (continued)

Environment Operating Nonoperating

Maximum altitude 3048 m (10 000 ft) 3048 m (10 000 ft)

Table 52. Noise emissions

Properties Operating Idle

L

(Category 2E, General business) 6.6 bels 6.3 bels

WAd

<LpA>

m

For a description of noise emission values, see Acoustics.

Table 53. Service clearances

Front Back Sides Top

762 mm (30 in. ) 762 mm (30 in. ) 762 mm (30 in. ) 762 mm (30 in. ) Side and top clearances are optional when operating.

48 dB 46 dB

Notes:

1. The 1.8 meter rack has six EIA units of space remaining. This space will be filled with a three-EIA

filler panel and three of the one-EIA filler panels.

2. Only the 4.3 m (14 ft) power cord features are offered for racked 9406-270 systems. There are a total of

four power cords that are routed through cable management arms. Also, there is a cable management device that might be used to restrict the length of the power cord exiting the bottom of the rack. See model 9406-270 Cable Poster Addendum included with the 0551 model 9406-270 rack.

3. The rack does not have power distribution. Each model 9406-270 and 7104 requires a power cord of

sufficient length to reach the receptacle. The power cord feature codes for model 9406-270s must be used to determine the appropriate receptacles.

Model 0554 and 7014-S11 rack

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Table 54. Dimensions

Dimension Properties

Height 611 mm (24 in.) Capacity 11 usable EIA units Height with PDP - DC only Not applicable Width without side panels Not applicable Width with side panels 518 mm (20.4 in.) Depth without doors 820 mm (32.3 in.) Depth with front door 873 mm (34.4 in.) Depth with sculptured style front door Not applicable Weight Base rack (empty) 36 kg (80 lb) Weight Full rack

Table 55. Electrical

Electrical characteristics Properties

DC rack voltage (nominal) Not applicable

1

218 kg (481 lb)

30 Site and hardware planning

Table 55. Electrical (continued)

Electrical characteristics Properties

Power source loading maximum in kVa Not applicable Voltage range (V dc) Not applicable AC rack See your server or hardware specifications for specific

requirements Power source loading maximum in kVa (per PDU) See your server or hardware specifications for specific

requirements Voltage range (V ac) See your server or hardware specifications for specific

requirements Frequency (Hz) 50 or 60 The 7188 power distribution unit used with this rack is mounted horizontally and requires one EIA unit of space.

Table 56. Service clearances

Front Back Sides

915 mm (36 in.) 254 mm (10 in.) 71 mm (2.8 in.) Recommended minimum vertical service clearance from floor is 2439 mm (8 ft).

See your server or hardware specifications for specific temperature requirements and humidity requirements.

Rack noise levels are a function of the number and type of drawers installed. See your server or hardware specifications for specific requirements.

Rack airflow requirements are a function of the number and type of drawers installed. Refer to the individual drawer specifications.

Note: Configuration dependent, base rack weight plus the weight of the drawers mounted in the rack. The rack can support up to a maximum weight of 15.9 kg (35 lb) per EIA unit.

Model 0554 and 7014-S11 rack operational clearances

Figure 15. Model 0554 and 7014-S11 with stabilizer bar

Site and hardware planning 31

Figure 16. Model 0554 and 7014-S11 plan view

Figure 17. Model 0554 and 7014-S11 caster locations

Model 0555 and 7014-S25 rack

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Table 57. Dimensions

Dimensions Properties

Height 1240 mm (49 in.) Capacity 25 usable EIA units Height with PDP - DC only Not applicable

32 Site and hardware planning

Table 57. Dimensions (continued)

Dimensions Properties

Width without side panels 590 mm (23.2 in.) Width with side panels 610 mm (24 in) Depth with back door only 996 mm (39.2 in.) Depth with back door and front door 1000 mm (39.4 in.) Depth with sculptured style front door Not applicable Base rack (empty) 98 kg (217 lb) Full rack

Table 58. Electrical

Electrical characteristics Properties

DC rack voltage (nominal) Not applicable Power source loading maximum in kVa Not applicable Voltage range (V dc) Not applicable AC rack See your server or hardware specifications for specific

Power source loading maximum in kVa (per PDU) See your server or hardware specifications for specific

Voltage range (V ac) See your server or hardware specifications for specific

Frequency (Hz) 50 or 60 The 7188 power distribution unit used with this rack is mounted horizontally and requires one EIA unit of space.

1

665 kg (1467 lb)

requirements

Table 59. Service clearance

Front Back Sides

915 mm (36 in.) 760 mm (30 in.) 915 mm (36 in.)

See your server or hardware specifications for specific temperature and humidity requirements.

Rack noise levels are a function of the number and type of drawers installed. See your server or hardware specifications for specific requirements.

Rack airflow requirements are a function of the number and type of drawers installed. Refer to the individual drawer specifications.

Notes:

1. Configuration dependent, base rack weight plus the weight of the drawers mounted in the rack. The

rack can support up to a maximum weight of 22.7 kg (50 lb) per EIA unit.

2. Recommended minimum vertical service clearance from floor is 2439 mm (8 ft).

Site and hardware planning 33

Model 0555 and 7014-S25 rack operational clearances

Figure 18. Model 0555 and 7014-S25 with stabilizer foot

34 Site and hardware planning

Figure 19. Model 0555 and 7014-S25 plan view

Site and hardware planning 35

Figure 20. Model 0555 and 7014-S25 caster locations

Planning for the 7014-T00 and 7014-T42 racks

Rack specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Some products can have rack installation limitations. Refer to the specific server or product specifications for any restrictions.

The following provide specifications for the 7014-T00, and 7014-T42 or 0553 racks.

Model 7014-T00 rack:

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Table 60. Dimensions for rack

Rack configuration

Rack with side covers only

Width Depth Height Weight

(empty)

644 mm (25.4 in.)

1016 mm (40.0 in.)

1804 mm (71.0 in.)

244 kg (535 lb) 1387 kg (3060

Weight (maximum configuration)

1

lb)

EIA unit capacity

36 EIA units

36 Site and hardware planning

Table 60. Dimensions for rack (continued)

Rack configuration

Width Depth Height Weight

(empty)

Weight (maximum

EIA unit capacity

configuration)

Rack with standard rear

644 mm (25.4 in.)

1042 mm (41.0 in.)

1804 mm (71.0 in.)

254 kg (559 lb) N/A N/A

door only Rack with

standard front

644 mm (25.4 in.)

1100 mm (43.3 in.)

1804 mm (71.0 in.)

268 kg (590 lb) N/A N/A

and rear doors Rack with FC

6101 OEM

644 mm (25.4 in.)

1100 mm (43.3 in.)

1804 mm (71.0 in.)

268 kg (590 lb) N/A N/A

front door and standard rear door

Rack with FC 6068 high

644 mm (25.4 in.)

1100 mm (43.3 in.)

1804 mm (71.0 in.)

268 kg (590 lb) N/A N/A

perforation front door and standard rear door

Rack with FC 6248 acoustic

644 mm (25.4 in.)

1413 mm (55.6 in.)

1804 mm (71.0 in.)

268 kg (589 lb) N/A N/A

front and rear doors

1

For more information about rack weight distribution and floor loading, see 7014-T00, 7014-T42, and 0553 rack

weight distribution and floor loading.

Table 61. Dimensions for doors

Door model Width Height Depth Weight

Standard front door 639 mm (25.2 in.) 1740 mm (68.5 in.) 56 mm (2.3 in.) 14 kg (31 lb) Standard rear door 639 mm (25.2 in.) 1740 mm (76.6 in.) 26 mm (1.0 in.) 11 kg (24 lb)

With acoustic foam: 14 kg (31 lb)

Standard side covers 10 mm (0.4 in.) each 1740 mm (68.5 in.)

each

FC 6101 front door

639 mm (25.2 in.) 1740 mm (68.5 in.) 56 mm (2.3 in.) 14 kg (31 lb)

1042 mm (41.0 in.) each

18 lbs (8.25) kg each

(OEM) FC 6068 front door,

639 mm (25.2 in.) 1740 mm (68.5 in.) 56 mm (2.3 in.) 14 kg (31 lb)

high perforation FC 6248 acoustic

doors, front and rear

Table 62. Electrical

639 mm (25.2 in.) each

1

1740 mm (76.6 in.) each

198 mm (7.8 in.) each 12.3 kg (27 lb) each

Electrical characteristics Properties

Power source loading maximum in kVA

2

8.4 (FC 61173)

8.4 (FC EPB8

3,4

)

Site and hardware planning 37

Table 62. Electrical1(continued)

Electrical characteristics Properties Notes:

1. The total rack power can be derived from the sum of the power that is used by the drawers in the rack.

2. For FC EPB8, each side can support a maximum of 600 amps (A) and 10 circuit breakers. The PDP can hold up

to twenty (ten per power source) circuit breakers with ratings between 5 A and 90 A. Each power source supports up to 8.4 kVA.

3. For more information about FC 6117 and FC EPB8, see “Model 7014-T00 rack with optional DC power

distribution panel.”

4. Preliminary data is subject to change.

See your individual server or hardware specifications for temperature and humidity requirements.

Rack noise levels depend on the number and type of drawers installed. See your server or hardware specifications for specific requirements.

Note: All rack installations require careful site and facilities planning designed to both address the cumulative drawer heat output and provide the airflow volume rates necessary to comply with drawer temperature requirements. All rack installations require careful site and facilities planning designed to address both the cumulative drawer heat output and provide the airflow volume rates necessary to comply with drawer temperature requirements. Rack airflow requirements depend on the number and type of drawers installed.

Note: Acoustic doors are available for IBM racks. Feature code 6248 is available for the 0551 and 7014-T00 racks. Feature code 6249 is available for the 0553 and 7014-T42 racks. The overall sound reduction is approximately 6 dB. The doors add approximately 381 mm (15 in.) to the depth of the racks.

Related reference: “7014-T00, 7014-T42, and 0553 rack weight distribution and floor loading” on page 46

Racks can be heavy when populated with several drawers. Use the Weight distribution distances for racks when loaded and Floor loading for racks when loaded tables to ensure proper floor loading and weight distribution.

Model 7014-T00 rack with optional DC power distribution panel:

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Feature code (FC) 6117 (-48 V dc power distribution panel (PDP))

This feature provides a top-mounted, dual DC power distribution panel for a rack that can contain varying quantities of central processing unit (CPU) drawers, storage subsystems, or both. Up to two DC H80 systems or two DC M80 systems are supported, in addition to up to four DC storage subsystems. This feature is built without attached power cables. It comes with a series of power connectors that is built into its rear bulkhead. The appropriate DC power cables are included with supported drawer systems and plug into the power connectors at the rear of the 6117 PDP.

FC EPB8 (-48 V dc power distribution panel (PDP))

This feature provides a top-mounted -48 V dc PDP for model 7014-T00 racks that can contain varying quantities of drawers, storage subsystems, and OEM equipment. This feature is preinstalled on the 7014-T00 rack. The PDP sits on top of the rack and does not take up any EIA space. The PDP supports redundant power with a split A and B side. Each side can support up to 10 circuit breakers that are rated between 5 - 90 amperes with a maximum load of 600 amperes. FC EPB8 does not include circuit breakers

38 Site and hardware planning

or DC power cables. The circuit breakers and associated DC power cables are typically supplied with IBM products. For OEM products, you must provide the applicable circuit breakers and DC power cables.

Note: Front doors are optional on the 7014-T00 rack.

Figure 21. FC EPB8 - power distribution panel

Site and hardware planning 39

Figure 22. FC EPB8 - power distribution panel (top-down view)

Table 63. Dimensions for 7014-T00 rack with FC 6117 or FC EPB8 installed

Dimensions Properties

Width (rack with side panels) 644 mm (25.4 in.) Depth 1148 mm (45.2 in.) Height with -48 v DC power only 1926 mm (75.8 in.) Height with -48 v DC power and overhead cable tray

(normally included with FC EPB8)

Table 64. Environment requirements for FC 6117 and FC EPB8

Environment Recommended operating Allowable operating Nonoperating

Temperature -5°C to 55°C (23°F - 131°F) Humidity range 0% - 90% relative humidity

Shipping temperature -40°C to 70°C (-40°F to

Shipping relative humidity 0% - 93%

1941 mm (76.4 in.)

(RH) (non-condensing)

158°F)

Model 7014-T42, 7014-B42, and 0553 rack:

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

40 Site and hardware planning

Table 65. Dimensions for rack

Rack

Width Depth Height

configuration

Rack only with side covers

Rack with standard rear

644 mm (25.4 in.)

door only Rack with

standard front

644 mm (25.4 in.)

and rear doors Rack with FC

6084 OEM

644 mm (25.4

in.) front door and standard rear door

Rack with FC 6069 high

644 mm (25.4

in.) perforation front door and standard rear door

Rack with FC ERG7 770/780

644 mm (25.4

in.) high perforation front door and standard rear door

Rack with FC 6249 acoustic

644 mm (25.4

in.) front and rear doors

Rack with FC 6250 high end

644 mm (25.4

in.) appearance front door and standard rear door

Rack with FC ERGB acoustic

644 mm (25.4

in.) front door and standard rear door

Rack with FC 6858 heat

644 mm (25.4

in.) exchanger rear door and standard front door

1016 mm (40.0 in.)

1042 mm (41.0 in.)

1098 mm (43.3 in.)

1176 mm (46.3 in.)

1413 mm (55.6 in.)

1131 mm (44.5 in.)

1240 mm (48.8 in.)

1222 mm (48.1 in.)

1

2015 mm (79.3 in.)

Weight (empty)

Weight (maximum

EIA unit capacity

configuration)

261 kg (575 lb) 1597 kg (3521

42 EIA units lb)2= (1336 kg + 261 kg)

273 kg (602 lb) N/A N/A

289 kg (636 lb) N/A N/A

290 kg (639 lb) N/A N/A

289 kg (635 lb) N/A N/A

N/A N/A

285 kg (627 lb) N/A N/A

Empty: 306 kg

N/A N/A

(675 lb)

Full: 312 kg (688 lb)

Site and hardware planning 41

Table 65. Dimensions for rack (continued)

Rack configuration

Width Depth Height

1

Weight (empty)

Weight (maximum

EIA unit capacity

configuration)

Rack with FC ERG0 rack

644 mm (25.4 in.)

1303 mm (51.3 in.)

2015 mm (79.3 in.)

315 kg (694 lb) N/A N/A

extension and standard front and rear doors

Notes:

1. The top 6U of the rack can be temporarily detached at the client site to make it easier to move the rack through

doors or elevators. The top 6U is then reattached to the rack frame to provide the full 42U rack capacity. The rack is approximately 28 cm (11 in.) shorter when the top is removed. For more information about removing the top cover, see Removing the rack top cover. The weight of the top cover is approximately 29 kg (63 lbs).

2. For more information about rack weight distribution and floor loading, see 7014-T00, 7014-T42, and 0553 rack

weight distribution and floor loading.

Table 66. Dimensions for doors

Door model Width Height Depth Weight

Standard front door 639 mm (25.2 in.) 1946 mm (76.6 in.) 56 mm (2.3 in.) 16 kg (34 lb) Standard rear door 639 mm (25.2 in.) 1946 mm (76.6 in.) 26 mm (1.0 in.) 13 kg (27 lb)

With acoustic foam: 16 kg (34 lb)

Standard side covers

10 mm (.4 in.) 1740 mm (68.5 in.) 1042 mm (41.0 in.) 18 lbs 8.25 kg(18 lb)

(each) FC 6084 front door

639 mm (25.2 in.) 1946 mm (76.6 in.) 56 mm (2.3 in.) 16 kg (34 lb)

(OEM) FC 6069 front door,

639 mm (25.2 in.) 1946 mm (76.6 in.) 56 mm (2.3 in.) 16 kg (34 lb)

high perforation FC ERG7 front door

639 mm (25.2 in.) 1946 mm (76.6 in.) 134 mm (5.3 in.) 17 kg (37 lb) 770/780 high perforation

FC 6249 acoustic doors, front and rear

FC 6250 high end appearance front door

FC ERGB acoustic

639 mm (25.2 in.)

each

639 mm (25.2 in.)

each

1946 mm (76.6 in.) each

198 mm (7.8 in.) each 13.6 kg (30 lb) each

90 mm (3.5 in.)

639 mm (25.2 in.) 1946 mm (76.6 in.) 198 mm (7.8 in.) 13.6 kg (30 lb) door, front only

FC 6238 high end

10 mm (.4 in.) 1740 mm (68.5 in.) 1042 mm (41.0 in.) 8.5 kg (18 lb) appearance side covers

FC 6858 heat

639 mm (25.2 in.) 1946 mm (76.6 in.) 147 mm (5.8 in.) Empty: 29.9 kg (66 lb) exchanger rear door

Full: 35.6 kg (78.5 lb)

FC ERG0 8-inch rack

647 mm (25.4 in.) 1957 mm (77.1 in.) 203 mm (8.0 in.) 27 kg (58.0 lb) extension

FC ERG8 ballast weight specify code

1

When model 9080-MHE, 9080-MME, 9119-MHE, and 9119-MME servers are ordered with FC ER16 to reserve rack

N/A N/A N/A 52.1 kg (115 lb)

1

space for future system nodes, FC ERG8 is automatically added to the order.

42 Site and hardware planning

Table 67. Electrical

Electrical characteristics Properties

Power source loading maximum in kVA For more information about rack power distribution

1

The total rack power can be derived from the sum of the power that is used by the drawers in the rack.

1

units and power cord options, see Power distribution unit and power cord options for 7014, 0551, 0553, and 0555 racks.

See your individual server or hardware specifications for temperature and humidity requirements.

Rack noise levels depend on the number and type of drawers installed. See your server or hardware specifications for specific requirements.

Note: All rack installations require careful site and facilities planning that is designed to both address the cumulative drawer heat output and provide the airflow volume rates necessary to comply with drawer temperature requirements. All rack installations require careful site and facilities planning that is designed to address both the cumulative drawer heat output and provide the airflow volume rates necessary to comply with drawer temperature requirements. Rack airflow requirements depend on the number and type of drawers installed.

Note: Acoustic doors are available for IBM racks. Feature code 6248 is available for the 0551 and 7014-T00 racks. Feature code 6249 is available for the 0553 and 7014-T42 racks. The overall sound reduction is approximately 6 dB. The doors add approximately 381 mm (15 in.) to the depth of the racks.

Service clearances

Table 68. Service clearances for 7014-T00, 7014-T42, and 0553 racks

Front Rear Sides

915 mm (36 in.) 915 mm (36 in.) 915 mm (36 in.) Note: Recommended minimum vertical service clearance from the floor is 2439 mm (8 ft).

Figure 23 on page 44 provides the caster and leveler locations for 7014-T00, 7014-T42, 0551, 0553, and 0555 racks.

Site and hardware planning 43

Figure 23. Caster and leveler locations

Note: Rack units are large and heavy and are not easily moved. As maintenance activities require access at both the front and the back, extra room is needed. The footprint illustration does not show the radius of the swinging doors on the I/O rack. A service clearance of 915 mm (36 in.) needs to be maintained on front, rear, and sides of the I/O rack.

Related reference: “7014-T00, 7014-T42, and 0553 rack weight distribution and floor loading” on page 46

Racks can be heavy when populated with several drawers. Use the Weight distribution distances for racks when loaded and Floor loading for racks when loaded tables to ensure proper floor loading and weight distribution.

7014-T00, 7014-T42, and 0553 supported feature codes:

Learn about the supported feature codes that are available for 7014-T00, 7014-T42 and 0553 racks.

Feature code (FC) ERG0

FC ERG0 is an optional rear rack extender that can be used for 7014-T42 racks. This extender is installed on the rear of the 7014-T42 rack and provides 20.3 cm (8 in.) of extra space to hold cables on the side of the rack and to keep the center area clear for cooling and service access.

44 Site and hardware planning

Figure 24. FC ERG0 rear rack extender (top-down view)

Figure 25. FC ERG0 assembled view

Site and hardware planning 45

FC 6080

FC 6080 is an optional rack feature that provides extra hardware that reinforces the rack and anchors it to the floor. The feature provides enhanced rigidity and stability of the rack. This feature includes a large steel brace or truss that bolts into the rear of the rack. It is hinged on the left side (when looking at the rear of the rack) and can swing out of the way for easy access to the rack drawers when necessary. This feature also includes hardware for bolting the rack to a concrete floor or a similar surface and bolt-in steel filler panels for any unoccupied spaces in the rack.

Notes:

1. If FC 6080 is installed, a tool is required to remove the bolt to secure the side cover to the rack.

2. FC 6080 is not supported on 9080-MHE, 9080-MME, 9119-MHE, and 9119-MME systems due to the

lack of cable space near the braces. Instead, you can use FC ERGC for these systems.

3. FC ERG0 (rear rack extender) cannot be used with FC 6080.

7014-T00, 7014-T00, and 0553 racks multiple attachment:

7014-T00, 7014-T42 or 0553 racks can be bolted together in a multiple rack arrangement. This figure shows that arrangement.

A kit is available including the bolts, spacers, and decorative trim pieces to cover the 25.4 mm (1 in.) space. For service clearances, see the service clearances as shown in the table for the model 7014-T00 rack.

Related reference: “Model 7014-T00 rack” on page 36

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

7014-T00, 7014-T42, and 0553 rack weight distribution and floor loading:

Racks can be heavy when populated with several drawers. Use the Weight distribution distances for racks when loaded and Floor loading for racks when loaded tables to ensure proper floor loading and weight distribution.

The 7014-T00, 7014-T42, and 0553 racks can be extremely heavy when several drawers are present. The following table shows the necessary weight distribution distances for the 7014-T00, 7014-T42, and 0553 racks when loaded.

46 Site and hardware planning

Table 69. Weight distribution distances for racks when loaded

Rack System

weight

7014-T00

4

816 kg (1795 lb)

7014-T00

5

816 kg (1795 lb)

7014-T00

6

816 kg (1795 lb)

7014-T42 and

4

0553 7014-T42 and

5

0553 7014-T42 and

6

0553

930 kg (2045 lb)

2

1

Width

623 mm (24.5 in)

2

Depth

1021 mm (40.2 in)

Weight distribution distance

3

Front and back Left and right

515.6 mm (20.3 in), 477.5

467.4 mm (18.4 in)

mm (18.8 in)

515.6 mm (20.3 in), 477.5

0

mm (18.8 in)

515.6 mm (20.3 in), 477.5

559 mm (22 in)

mm (18.8 in)

515.6 mm (20.3 in), 477.5

467.4 mm (18.4 in)

mm (18.8 in)

515.6 mm (20.3 in), 477.5

0

mm (18.8 in)

515.6 mm (20.3 in), 477.5

686 mm (27 in)

mm (18.8 in)

Notes:

1. Maximum weight of fully populated rack, units are lb with kg in parentheses.

2. Dimensions without covers, units are mm with inches in parentheses.

3. The weight distribution distance in all four directions is the area around the rack perimeter (minus covers)

necessary to distribute the weight beyond the perimeter of the rack. Weight distribution areas cannot overlap with adjacent computer equipment weight distribution areas. Units are inches with mm in parentheses.

4. Weight distribution distance is 1/2 the service clearance values shown in the figure plus cover thickness.

5. No left and right weight distribution distance.

6. Left and right weight distribution distance required for a 70 lb/ft2raised floor loading objective.

The following table shows the necessary floor loading for the 7014-T00, 7014-T42 and 0553 racks when loaded.

Table 70. Floor loading for racks when loaded

Rack Floor loading

7014-T00 7014-T00 7014-T00

2

3

4

7014-T42 and 0553 7014-T42 and 0553 7014-T42 and 0553

Raised kg/m

1

Non-raised kg/m

366.7 322.7 75 66

734.5 690.6 150.4 141.4 341 297 70 61

2

403 359 82.5 73.5

3

825 781 169 160

4

341.4 297.5 70 61

1

Raised lb/ft

1

Non-raised lb/ft

1

Notes:

1. Dimensions without covers, units are mm with inches in parentheses.

2. Weight distribution distance is 1/2 the service clearance values shown in the figure plus cover thickness.

3. No left and right weight distribution distance.

4. Left and right weight distribution distance required for a 70 lb/ft2raised floor loading objective.

Related reference: “Model 7014-T42, 7014-B42, and 0553 rack” on page 40

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Site and hardware planning 47

“Model 7014-T00 rack” on page 36 Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Planning for the 7953-94X and 7965-94Y rack

Rack specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

The following provide specifications for the 7953-94X and 7965-94Y rack.

Model 7953-94X and 7965-94Y rack:

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Table 71. Dimensions for rack

Weight (Maximum

Rack only

Rack with standard doors

Width Depth Height Weight (Empty)

600 mm (23.6 in.)

1039 mm (40.9 in.)

1095 mm (43.1 in.)

2002 mm (78.8 in.)

130 kg (287 lb) 1140 kg (2512 lb) 42 EIA units

138 kg (304 lb) N/A N/A

configuration)

1206.2 Rack with triplex doors

600 mm (23.6 in.)

1228.8 mm

(47.5 - 48.4

2002 mm (78.8 in.)

147 kg (324 lb) N/A N/A

in.)

Rack with rear door heat exchanger

600 mm (23.6 in.)

1196 mm (47.1 in.)

2002 mm (78.8 in.)

169 kg (373 lb) N/A N/A

indicator Note: When the rack is delivered or is moved, outriggers are needed for stability. For more information about

outriggers, see “Side stabilizing outriggers” on page 52.

EIA unit capacity

Table 72. Dimensions for doors

Door model Width Height Depth Weight

Standard front door (FC EC01)

and

597 mm (23.5 in.) 1925 mm (75.8 in.) 22.5 mm (0.9 in.) 7.7 kg (17 lb)

standard back door (FC EC02)

Triplex door (FC

3

EU21)

1

Measured from the front flat surface of the door.

2

Measured from the IBM logo on the front of the door.

3

Multiple racks that are placed side-by-side must have a 6 mm (0.24 in.) minimum clearance between racks to allow

597.1 mm (23.5 in.) 1923.6 mm (75.7 in.)

105.7 mm (4.2 in.)

128.3 mm (5.2 in.)

1

2

16.8 kg (37 lb)

the triplex front door to hinge properly. Feature code EC04 (Rack suite attachment kit) can be used to maintain the 6 mm (0.24 in.) minimum clearance between racks.

48 Site and hardware planning

Table 73. Dimensions for side covers

1

Depth Height Weight

885 mm (34.9 in.) 1870 mm (73.6 in.) 17.7 kg (39 lb)

1

Side covers do not increase the overall width of the rack.

Table 74. Temperature requirements

Operating Nonoperating

10°C - 38°C (50°F - 100.4°F)

1

The maximum 38°C (100.4°F) temperature must be derated 1°C (1.8 °F) per 137 m (450 ft) above 1295 m (4250 ft).

1

-40°C to 60°C (-40°F to 140°F)

Table 75. Environmental requirements

Environment Operating Nonoperating Maximum altitude

Noncondensing humidity 20% - 80% (allowable)

40% - 55% (recommended)

8% - 80% (including condensing)

2134 m (7000 ft) above sea level

Wet bulb temperature 21°C (69.8°F) 27°C (80.6°F)

Table 76. Service clearances

Front Back Side

1

915 mm (36 in.) 915 mm (36 in.) 610 mm (24 in.)

1

Side service clearance is only required when outriggers are on the rack. Side service clearance is not required

during normal operation of the rack when outriggers are not installed.

Rear door heat exchanger

Specifications for Power orderable feature code (FC): EC05 - Rear door heat exchanger indicator (Model 1164-95X).

Table 77. Dimensions for rear door heat exchanger

Width Depth Height Weight (empty) Weight (filled)

600 mm (23.6 in.) 129 mm (5.0 in.) 1950 mm (76.8 in.) 39 kg (85 lb) 48 kg (105 lb) For more information, see “Model 1164-95X rear door heat exchanger” on page 54.

Electrical

For electrical requirements, see Power distribution unit and power cord options.

Features

The 7953-94X and 7965-94Y rack has the following features available for use:

v Recirculation prevention plate that is installed at the bottom, front of the rack. v Stabilizer bracket that is installed at the front of the rack.

Caster locations

The following diagram provides the caster locations for the 7953-94X and 7965-94Y rack.

Site and hardware planning 49

Figure 26. Caster locations

Cabling the 7953-94X and 7965-94Y rack:

Learn about the different cable routing options available for the 7953-94X and 7965-94Y rack.

Cabling within the rack

Side cable channels are available in the rack to route cables. There are two cable channels on each side of the rack as shown in Figure 27 on page 51.

50 Site and hardware planning

Figure 27. Cabling within the rack

Cabling under the floor

A cable access bar located on the bottom rear of the rack helps to route the cables, leaving the rack in place. This bar can be removed for installation and then reattached after the rack is installed and cabled.

Figure 28. Cable access bar

Site and hardware planning 51

Cabling overhead

Front and rear rectangular cable access openings located on the top of the rack cabinet allow cables to be routed up and out of the rack. Cable access covers are adjustable by loosing the side screws and sliding the covers forward or backward.

Figure 29. Cable access covers

Side stabilizing outriggers:

Learn about the side stabilizing outriggers available for the 7953-94X and 7965-94Y rack.

The outriggers are stabilizers with wheels installed on the sides of the rack cabinet. The outriggers can be removed only after the rack is in the final location and will not be moved more than 2 m (6 ft) away in any direction.

To remove the outriggers, use a 6 mm hex wrench to remove the four bolts that attach each outrigger to the rack cabinet.

Keep each of the outriggers and bolts in a safe place for future use when moving the rack. Reinstall the outriggers to move the rack cabinet to another location that is greater than 2 m (6 ft) away from its current location.

52 Site and hardware planning

Table 78. Dimensions for rack with outriggers

Width Depth Height Weight EIA unit capacity

780 mm (30.7 in.) 1095 mm (43.1 in.) 2002 mm (78.8 in.) 261 kg (575 lb) 42 EIA units

Figure 30. Outrigger locations

Multiple racks:

Learn how to attach multiple 7953-94X and 7965-94Y racks together.

Multiple 7953-94X and 7965-94Y racks can be attached together via attachment brackets connecting the units at the front of the rack. See Figure 31 on page 54.

Site and hardware planning 53

Figure 31. Attachment brackets

Model 1164-95X rear door heat exchanger:

Learn about the specifications of the 1164-95X rear door heat exchanger (feature code EC05).

Model 1164-95X rear door heat exchanger specifications

Table 79. Dimensions for the 1164-95X rear door heat exchanger

1

Width

600 mm (23.6 in.) 129 mm (5.0 in.) 1950 mm (76.8 in.) 39 kg (85.0 lb) 48 kg (105.0 lb)

1. The width is the inside width of the machine when installed in the U space of the rack. The width of the front

bezel is 482 mm (19.0 in.).

Depth Height Weight (empty) Weight (filled)

Water specifications

v Pressure

– Normal operation: <137.93 kPa (20 psi) – Maximum: 689.66 kPa (100 psi)

v Volume

– Approximately 9 liters (2.4 gallons)

v Temperature

54 Site and hardware planning

– Water temperature must be above the dew point in the data center – 18°C ± 1°C (64.4°F ± 1.8°F) for ASHRAE Class 1 Environment – 22°C ± 1°C (71.6°F ± 1.8°F) for ASHRAE Class 2 Environment

v Required water flow rate (as measured from the supply entrance to the heat exchanger)

– Minimum: 22.7 liters (6 gallons) per minute – Maximum: 56.8 liters (15 gallons) per minute

Heat exchanger performance

A heat removal of 100% indicates that an amount of heat that is 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 (27°C (80.6°F) in this example). Heat removal in excess of 100% indicates that the heat exchanger not only removed all of the heat that was generated by the devices, but further cooled the air so that the average air temperature that is leaving the rack is actually lower than air temperature that is entering the rack.

To help maintain optimum performance of the rear door heat exchanger and provide proper cooling for all rack components, you must take the following precautions:

v Install filler panels over all unoccupied bays. v Route signal cables at the rear of the rack so that they enter or exit the cabinet through the top and

bottom air baffles.

v Bundle signal cables together in a rectangle so that the upper and lower air-baffle sliders are closed as

far as possible. Do not bundle signal cables together in a circular formation.

Figure 32. Typical performance of the heat exchanger, 20 kW heat load

Site and hardware planning 55

Figure 33. Typical performance of the heat exchanger, 30 kW heat load

Figure 34. Pressure drop (standard units)

Water specifications for the secondary cooling loop

Important: The water that is being supplied to the heat exchanger must meet the requirements that are

described in this section. Otherwise, system failures might occur over time as a result of any of the following problems:

v Leaks due to corrosion and pitting of the metal components of the heat exchanger or of the

water-supply system.

v Buildup of scale deposits inside the heat exchanger, which can cause the following problems:

– A reduction in the ability of the heat exchanger to cool the air that is exhausted from the rack

56 Site and hardware planning

– Failure of mechanical hardware, such as a hose quick-connect coupling

v Organic contamination, such as bacteria, fungi, or algae. This contamination can cause the same

problems as described for scale deposits.

Contact a water quality and water distribution services expert for designing and implementing the infrastructure and water chemistry of the secondary loop.

Control and conditioning of the secondary cooling loop

The water that is used to fill, refill, and supply the heat exchanger must be particle-free deionized water or particle-free distilled water with appropriate controls for avoiding the following problems:

v Metal corrosion v Bacterial fouling v Scaling

The water cannot originate from the primary chilled-water system for the building but must be supplied as part of a secondary closed-loop system.

Important: Do not use glycol solutions because they can adversely affect the cooling performance of the heat exchanger.

Materials to use in secondary loops

You can use any of the following materials in supply lines, connectors, manifolds, pumps and any other hardware that makes up the closed-loop water-supply system at your location:

v Copper v brass with less than 30% zinc content v Brass with less than 30% zinc content v Stainless steel 303 or 316 v Peroxide cured ethylene propylene diene monomer (EPDM) rubber, non-metal-oxide material

Materials to avoid in secondary loops

Do not use any of the following materials in any part of your water-supply system:

v Oxidizing biocides, such as chlorine, bromine, and chlorine dioxide v Aluminum v Brass with greater than 30% zinc v Irons (nonstainless steel)

Model 1164-95X rear door heat exchanger water cooling specifications and requirements:

Learn about the specifications and requirements for the water cooling of the 1164-95X rear door heat exchanger (feature code EC05).

Water specifications for the secondary cooling loop

Important: The water that is being supplied to the heat exchanger must meet the requirements that are

described at: “Model 1164-95X rear door heat exchanger” on page 54. Otherwise, system failures might occur over time as a result of any of the following problems:

v Leaks due to corrosion and pitting of the metal components of the heat exchanger or of the

water-supply system.

v Buildup of scale deposits inside the heat exchanger, which can cause the following problems:

– A reduction in the ability of the heat exchanger to cool the air that is exhausted from the rack

Site and hardware planning 57

– Failure of mechanical hardware, such as a hose quick-connect coupling

v Organic contamination, such as bacteria, fungi, or algae. This contamination can cause the same

problems as described for scale deposits.

Contact a water quality and water distribution services expert for designing and implementing the infrastructure and water chemistry of the secondary loop.

Control and conditioning of the secondary cooling loop

The water that is used to fill, refill, and supply the heat exchanger must be particle-free deionized water or particle-free distilled water with appropriate controls for avoiding the following problems:

v Metal corrosion v Bacterial fouling v Scaling

The water cannot originate from the primary chilled-water system for the building but must be supplied as part of a secondary closed-loop system.

Important: Do not use glycol solutions because they can adversely affect the cooling performance of the heat exchanger.

Materials to use in secondary loops

You can use any of the following materials in supply lines, connectors, manifolds, pumps, and any other hardware that makes up the closed-loop water-supply system at your location:

v Copper v brass with less than 30% zinc content v Brass with less than 30% zinc content v Stainless steel 303 or 316 v Peroxide cured ethylene propylene diene monomer (EPDM) rubber, non-metal-oxide material

Materials to avoid in secondary loops

Do not use any of the following materials in any part of your water-supply system:

v Oxidizing biocides, such as chlorine, bromine, and chlorine dioxide v Aluminum v Brass with greater than 30% zinc v Irons (nonstainless steel)

Water-supply requirements for secondary loops

Learn about the specific characteristics of the system that supplies the chilled conditioned water to the heat exchanger.

Temperature:

The heat exchanger and its supply hose and return hoses are not insulated. Avoid any condition that might cause condensation. The temperature of the water inside the supply hose, return hose, and heat exchanger must be kept above the dew point of the location where the heat exchanger is being used.

Attention: Typical primary chilled water is too cold for use in this application because building chilled water can be as cold as 4°C - 6°C (39°F - 43°F).

Important:

58 Site and hardware planning

The system that supplies the cooling water must be able to measure the room dew point and automatically adjust the water temperature accordingly. Otherwise, the water temperature must be above the maximum dew point for that data center installation. For example, the following minimum water temperature must be maintained:

v 18°C plus or minus 1°C (64.4°F plus or minus 1.8°F). This specification is applicable within an

ASHRAE Class 1 Environmental Specification that requires a maximum dew point of 17°C (62.6°F).

v 22°C plus or minus 1°C (71.6°F plus or minus 1.8°F). This specification is applicable within an

ASHRAE Class 2 Environmental Specification that requires a maximum dew point of 21°C (69.8°F).

See the ASHRAE document Thermal Guidelines for Data Processing Environments.

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.

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.

Water volume limits:

The heat exchanger holds approximately 9 liters (2.4 gallons). Fifteen meters (50 ft) of 19 mm (0.75 in.) supply and return hoses hold approximately 9.4 liters (2.5 gallons). To minimize exposure to flooding in the case of leaks, the entire product cooling system (heat exchanger, supply hose, and return hose), excluding any reservoir tank, must have a maximum 18.4 liters (4.8 gallons) of water. This is a cautionary statement, not a functional requirement. Also, consider using leak detection methods on the secondary loop that supplies water to the heat exchanger.

Air exposure:

The secondary cooling loop is a closed loop, with no continuous exposure to room air. After you fill the loop, remove all air from the loop. An air bleed valve is provided at the top of a heat exchanger manifold for purging all air from the system.

Water delivery specifications for secondary loops

Learn about the various hardware components that make up the delivery system secondary loop that provides the chilled, conditioned water to the heat exchanger. The delivery system includes pipes, hoses, and the required connection hardware to connect the hoses to the heat exchanger. Hose management can be used in raised-floor and non-raised-floor environments.

The heat exchanger can remove 100% or more of the heat load from an individual rack when it is running under optimum conditions.

The primary cooling loop is considered to be the building chilled-water supply or a modular chiller unit. The primary loop must not be used as a direct source of coolant for the heat exchanger.

Procurement and installation of the components that are needed to create the secondary cooling loop system are required for this design and are your responsibility. The main purpose is to provide examples of typical methods of secondary loop setup and operating characteristics that are needed to provide an adequate and safe supply of water to the heat exchanger.

Site and hardware planning 59

Attention:

The overpressure safety device must meet the following requirements:

v Comply with ISO 4126-1. v Be installed so that it is easily accessed for inspection, maintenance, and repair. v Be connected as close as possible to the device that it is intended to protect. v Be adjustable only with the use of a tool. v Have a discharge opening that is directed so that discharged water or fluid does not create a hazard or

be directed toward any person.

v Be of adequate discharge capacity to ensure that the maximum working pressure is not exceeded. v Be installed without a shutoff valve between the overpressure safety device and the protected device.

Read the following guidelines before you design the installation: v A method for monitoring and setting the total flow rate that is delivered to all of the heat exchangers is

required. This can be a discrete flowmeter that is built into the flow loop or a flowmeter within the secondary loop of the coolant distribution unit (CDU).

v After you set the total flow rate for all of the heat exchangers by using a flowmeter, it is important to

design the plumbing so that it provides the flow rate that you want for each heat exchanger and provides a way to verify the flow rate. Other methods, such as inline or external flowmeters, can provide a more accurate method for setting the flow rate through the individual shutoff valves.

v Design the flow loop to minimize the total pressure drop within the flow loop. The Optional Low

Impedance Quick Connect feature cannot use the Parker quick-connect couplings that are used on the heat exchanger because of the excessive pressure drop that is associated with flowing through four quick-connect pairs in series. These must be very low, near 0, flow impedance quick connects. Alternatively, these quick connects can be eliminated and replaced with a hose barb connection.

Manifolds and piping:

Manifolds that accept large-diameter feed pipes from a pump unit are the preferred method for splitting the flow of water to smaller-diameter pipes or hoses that are routed to individual heat exchangers. Manifolds must be constructed of materials that are compatible with the pump unit and related piping. The manifolds must provide enough connection points to allow a matching number of supply and return lines to be attached, and the manifolds must match the capacity rating of the pumps and the loop heat exchanger (between the secondary cooling loop and the building chilled-water source). Anchor or restrain all manifolds to provide the required support to avoid movement when quick-connect couplings are connected to the manifolds.

Example of manifold supply pipe sizes: v 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).

v 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.

v 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.

To stop the flow of water in individual legs of multiple circuit loops, install shutoff valves for each supply and return line. This provides a way to service or replace an individual heat exchanger without affecting the operation of other heat exchangers in the loop.

To ensure that water specifications are being met and that the optimum heat removal is taking place, use temperature and flow metering (monitoring) in secondary loops.

Anchor or restrain all manifolds and pipes to provide the required support and to avoid movement when quick-connect couplings are being attached to the manifolds.

Flexible hoses and connections to manifolds and heat exchangers:

60 Site and hardware planning

Pipe and hose configurations can vary. You can determine the best configuration for your installation by analyzing the needs of your facilities, or a site preparation representative can provide this analysis.

Flexible hoses are needed to supply and return water between your hard plumbing (manifolds and coolant distribution units) and the heat exchanger (allowing needed movement for opening and closing the rack rear door).

Hoses are available that provide water with acceptable pressure-drop characteristics and that help prevent depletion of some corrosion inhibitors. These hoses must be made of peroxide-cured ethylene propylene diene monomer (EPDM) rubber, non-metal oxide material and must have Parker Fluid Connectors quick-connect couplings at one end, which are attached to the heat exchanger, and must either have a low impedance quick connect coupling or nothing to attach to a barb at the other end. The Parker couplings are compatible with the heat exchanger couplings. Hose lengths 3 - 15 meters (10 - 50 ft), in increments of 3 meters (10 ft), are available. Hoses that are longer than 15 meters (50 ft) might create unacceptable pressure loss in the secondary circuit and reduce the water flow, reducing the heat removal capabilities of the heat exchanger.

Use solid piping or tubing that has a minimum inner diameter of 19 mm (0.75 in.) and the fewest possible joints between a manifold and a heat exchanger in each secondary loop.

Use quick-connect couplings to attach the hoses to the heat exchangers. Hose couplings that connect to the heat exchanger must have the following characteristics:

v The couplings must be constructed of passivated 300-L series stainless steel or brass with less

than 30% zinc content. The coupling size is 19 mm (0.75 in.).

v 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.

v If a low impedance quick-connect coupling is used at the opposite (manifold) end of the hose,

use positive locking mechanisms to prevent loss of water when the hoses are disconnected. The connections must minimize water spill and air inclusion into the system when they are disconnected.

Planning for the 7965-S42 rack

Rack specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Model 7965-S42 rack specifications:

Hardware specifications provide detailed information for your rack, including dimensions, electrical, power, temperature, environment, and service clearances.

Table 80. Dimensions for rack

EIA unit

Rack only

Rack with two standard doors

Rack with rear door heat exchanger (dry) and standard doors

Width Depth Height Weight (Empty)

600 mm (23.6 in.)

1070 mm (42.1 in.)

1132 mm (44.6 in.)

1231 mm (48.5 in.)

2020 mm (79.5 in.) 166 kg (365 lb) 42 EIA units

2020 mm (79.5 in.) 177 kg (391 lb) 42 EIA units

2020 mm (79.5 in.) 210 kg (463 lb) 42 EIA units

capacity

Site and hardware planning 61

Table 80. Dimensions for rack (continued)

EIA unit

Width Depth Height Weight (Empty)

capacity

Rack with high-end appearance front door and rear

600 mm (23.6 in.)

1201 mm (47.3 in.)

2020 mm (79.5 in.) 181 kg (398 lb) 42 EIA units

door

Table 81. Weight capacity limits

Characteristics Maximum weight EIA unit capacity

Dynamic (rolling) 1134 kg (2500 lb) 18 kg (40 lb) / EIA average Static 1678 kg (3700 lb) 32 kg (70 lb) / EIA average Seismic certified 1170 (2580 lb) 20 kg (45 lb) / EIA maximum

Table 82. Dimensions for doors

Door model Width Height Depth Weight

Standard front door and standard

590 mm (23.2 in.) 1942 mm (76.5 in.) 31 mm (1.2 in.) 5.9 kg (13 lb)

back door

Rear door heat exchanger door

600 mm (23.6 in.) 1950 mm (76.8 in.) 129 mm (5.0 in.)

39 kg (85 lb) - empty 48 kg (105 lb) - filled

High-end appearance front

590 mm (23.2 in.) 1942 mm (76.5 in.) 100 mm (3.9 in.) 9.1 kg (20 lb)

door

Table 83. Dimensions for side covers

Width

1

Depth Height Weight

2

12 mm (0.5 in.) 1070 mm (42.1 in.) 1942 mm (76.5 in.) 20 kg (44 lb)

1

Side covers increase the overall width of the rack by 12 mm (0.5 in.) per side, but are only used on the ends of the

rows.

2

Weight is for each side cover.

Table 84. Environment requirements

1

Environment Recommended operating Allowable operating Nonoperating

ASHRAE class A3 Airflow direction Front-to-back Temperature Humidity range 5.5°C (42°F) dew point (DP)

2

18°C - 27°C (64°F - 80°F) 5°C - 40°C (41°F - 104°F) 1°C - 60°C (34°F - 140°F)

to 60% relative humidity

-12.0°C (10.4°F) DP and 8%

- 80% RH

8% - 80% RH

(RH) and 15°C (59°F) dew

point Maximum dew point 24°C (75°F) 27°C (80°F) Maximum operating

3050 m (10000 ft)

altitude Shipping temperature -40°C to 60°C (-40°F to

140°F)

62 Site and hardware planning

Table 84. Environment requirements1(continued)

Environment Recommended operating Allowable operating Nonoperating

Shipping relative humidity 5% - 100%

1. The final ASHRAE class is determined by the hardware that is installed in the rack. Individual specifications for

each piece of hardware must be reviewed.

2. Derate maximum allowable dry-bulb temperature 1°C per 175 m above 950 m. IBM recommends a temperature

range of 18°C - 27°C (64°F - 80.6°F).

Table 85. Service clearances

1

Front

915 mm (36 in.) 915 mm (36 in.)

1

Storage racks require larger service clearances in the front of the rack.

Back

Rear door heat exchanger

Specifications for Power orderable feature code (FC) EC05 (Rear door heat exchanger indicator (Model 1164-95X)).

Table 86. Dimensions for rear door heat exchanger

Width Depth Height Weight (empty) Weight (filled)

600 mm (23.6 in.) 129 mm (5.0 in.) 1950 mm (76.8 in.) 39 kg (85 lb) 48 kg (105 lb) For more information, see “Model 1164-95X rear door heat exchanger” on page 54.

Electrical

For electrical requirements, see Power distribution unit and power cord options.

Floor cutout

Racks with water hoses and power cords that exit from the bottom of the rack require a floor tile cutout of at least 30.48 cm (12 in.) long by 22.86 cm (9 in.) wide. Due to the hose bend radii, the hole must be positioned towards the side of the rack without the manifold (the left side of the rack when looking at the rear of the rack). The left edge of the hole must be at least 11.43 cm (4.5 in.) from the side and 3.81 cm (1.5 in.) from the back edge of the rack (not including doors). Hole placement on the tile depends on the location of the rack, tile size, and tile load limitations.

Site and hardware planning 63

Figure 35. Floor cutout

Caster and leveler locations

The following diagram provides the caster and leveler locations for the 7965-S42 rack.

64 Site and hardware planning

Figure 36. Caster and leveler locations

Cabling the 7965-S42 rack:

Learn about the different cable routing options available for the 7965-S42 rack.

Cabling within the rack

Side cable channels are available in the rack to route cables. Three cable channels are on each side of the rack.

Site and hardware planning 65

Figure 37. Cabling within the rack

Cabling under the floor

Cables can be routed straight down through the side channels of the rack or routed towards the center of the opening.

Figure 38. Cabling under the floor

Cabling overhead

Front and rear cable access openings that are on the top of the rack cabinet allow cables to be routed up and out of the rack. Cable access covers on the rear are adjustable by loosening the side screws and sliding the covers forward or backward. Because of the smaller size of the cable openings in front, cables

66 Site and hardware planning

that pass through this area must be minimized.

Figure 39. Cabling overhead

Multiple racks:

Learn how to attach multiple 7965-S42 racks together.

Multiple 7965-S42 racks can be attached together. For racks that are on a 600 mm (23.6 in.) pitch, you can use screws to clamp the racks together. For racks that are on a 609 mm (24.0 in.) pitch, two spacer brackets must be added to set the proper spacing before you can use screws to clamp the racks together.

Figure 40. Attaching multiple racks with spacer brackets

Site and hardware planning 67

Model 7965-S42 supported feature codes:

600mm (23.6in)

130mm (5.12in)

192.5mm (7.58in)

111.6mm (4.39in)

86.3mm (3.4in)

Cable

Egress

Cable

Egress

S42Rack

RearDoor

P8HAD506-0

600mm (23.6in)

130mm (5.12in)

108mm (4.25in)

185mm

(7.3in)

Cable

Egress

Cable

Egress

S42Rack

RearDoor

P8HAD507-0

Learn about the supported feature codes that are available for 7965-S42 racks.

Feature code (FC) ECRK

FC ECRK is an optional rear rack extender that can be used for 7965-S42 racks. This extender is installed on the rear of the 7965-S42 rack and provides 130 mm (5 in.) of extra space to hold cables on the side of the rack and to keep the center area clear for cooling and service access. Two extenders can be stacked to provide 260mm (10 in.) of additional rear cabling space. The extender has hook-and-loop fasteners to secure cables.

Table 87. Dimensions for FC ECRK rear rack extender

Width Depth Height Weight

600 mm (23.62 in.) 130 mm (5.11 in.) 1952.4 mm (76.87 in.) 14.5 kg (32 lbs)

Figure 41. FC ECRK rear rack extender (top cable exit)

Figure 42. FC ECRK rear rack extender (bottom cable exit)

68 Site and hardware planning

RightSidePanel

AssembledView

P8HAD508-0

Figure 43. FC ECRK assembled view

Model 1164-95X rear door heat exchanger:

Learn about the specifications of the 1164-95X rear door heat exchanger (feature code EC05).

Model 1164-95X rear door heat exchanger specifications

Table 88. Dimensions for the 1164-95X rear door heat exchanger

1

Width

600 mm (23.6 in.) 129 mm (5.0 in.) 1950 mm (76.8 in.) 39 kg (85.0 lb) 48 kg (105.0 lb)

1. The width is the inside width of the machine when installed in the U space of the rack. The width of the front

bezel is 482 mm (19.0 in.).

Depth Height Weight (empty) Weight (filled)

Water specifications

v Pressure

– Normal operation: <137.93 kPa (20 psi) – Maximum: 689.66 kPa (100 psi)

v Volume

– Approximately 9 liters (2.4 gallons)

v Temperature

– Water temperature must be above the dew point in the data center – 18°C ± 1°C (64.4°F ± 1.8°F) for ASHRAE Class 1 Environment – 22°C ± 1°C (71.6°F ± 1.8°F) for ASHRAE Class 2 Environment

v Required water flow rate (as measured from the supply entrance to the heat exchanger)

Site and hardware planning 69

– Minimum: 22.7 liters (6 gallons) per minute – Maximum: 56.8 liters (15 gallons) per minute

Heat exchanger performance

A heat removal of 100% indicates that an amount of heat that is 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 (27°C (80.6°F) in this example). Heat removal in excess of 100% indicates that the heat exchanger not only removed all of the heat that was generated by the devices, but further cooled the air so that the average air temperature that is leaving the rack is actually lower than air temperature that is entering the rack.

To help maintain optimum performance of the rear door heat exchanger and provide proper cooling for all rack components, you must take the following precautions:

v Install filler panels over all unoccupied bays. v Route signal cables at the rear of the rack so that they enter or exit the cabinet through the top and

bottom air baffles.

v Bundle signal cables together in a rectangle so that the upper and lower air-baffle sliders are closed as

far as possible. Do not bundle signal cables together in a circular formation.

Figure 44. Typical performance of the heat exchanger, 20 kW heat load

70 Site and hardware planning

Figure 45. Typical performance of the heat exchanger, 30 kW heat load

Figure 46. Pressure drop (standard units)

Water specifications for the secondary cooling loop

Important: The water that is being supplied to the heat exchanger must meet the requirements that are

described in this section. Otherwise, system failures might occur over time as a result of any of the following problems:

v Leaks due to corrosion and pitting of the metal components of the heat exchanger or of the

water-supply system.

v Buildup of scale deposits inside the heat exchanger, which can cause the following problems:

– A reduction in the ability of the heat exchanger to cool the air that is exhausted from the rack

Site and hardware planning 71

– Failure of mechanical hardware, such as a hose quick-connect coupling

v Organic contamination, such as bacteria, fungi, or algae. This contamination can cause the same

problems as described for scale deposits.

Contact a water quality and water distribution services expert for designing and implementing the infrastructure and water chemistry of the secondary loop.

Control and conditioning of the secondary cooling loop

The water that is used to fill, refill, and supply the heat exchanger must be particle-free deionized water or particle-free distilled water with appropriate controls for avoiding the following problems:

v Metal corrosion v Bacterial fouling v Scaling

The water cannot originate from the primary chilled-water system for the building but must be supplied as part of a secondary closed-loop system.

Important: Do not use glycol solutions because they can adversely affect the cooling performance of the heat exchanger.

Materials to use in secondary loops

You can use any of the following materials in supply lines, connectors, manifolds, pumps and any other hardware that makes up the closed-loop water-supply system at your location:

v Copper v brass with less than 30% zinc content v Brass with less than 30% zinc content v Stainless steel 303 or 316 v Peroxide cured ethylene propylene diene monomer (EPDM) rubber, non-metal-oxide material

Materials to avoid in secondary loops

Do not use any of the following materials in any part of your water-supply system:

v Oxidizing biocides, such as chlorine, bromine, and chlorine dioxide v Aluminum v Brass with greater than 30% zinc v Irons (nonstainless steel)

Model 1164-95X rear door heat exchanger water cooling specifications and requirements:

Learn about the specifications and requirements for the water cooling of the 1164-95X rear door heat exchanger (feature code EC05).

Water specifications for the secondary cooling loop

Important: The water that is being supplied to the heat exchanger must meet the requirements that are

described at: “Model 1164-95X rear door heat exchanger” on page 54. Otherwise, system failures might occur over time as a result of any of the following problems:

v Leaks due to corrosion and pitting of the metal components of the heat exchanger or of the

water-supply system.

v Buildup of scale deposits inside the heat exchanger, which can cause the following problems:

– A reduction in the ability of the heat exchanger to cool the air that is exhausted from the rack

72 Site and hardware planning

– Failure of mechanical hardware, such as a hose quick-connect coupling

v Organic contamination, such as bacteria, fungi, or algae. This contamination can cause the same

problems as described for scale deposits.

Contact a water quality and water distribution services expert for designing and implementing the infrastructure and water chemistry of the secondary loop.

Control and conditioning of the secondary cooling loop

The water that is used to fill, refill, and supply the heat exchanger must be particle-free deionized water or particle-free distilled water with appropriate controls for avoiding the following problems:

v Metal corrosion v Bacterial fouling v Scaling

The water cannot originate from the primary chilled-water system for the building but must be supplied as part of a secondary closed-loop system.

Important: Do not use glycol solutions because they can adversely affect the cooling performance of the heat exchanger.

Materials to use in secondary loops

You can use any of the following materials in supply lines, connectors, manifolds, pumps, and any other hardware that makes up the closed-loop water-supply system at your location:

v Copper v brass with less than 30% zinc content v Brass with less than 30% zinc content v Stainless steel 303 or 316 v Peroxide cured ethylene propylene diene monomer (EPDM) rubber, non-metal-oxide material

Materials to avoid in secondary loops

Do not use any of the following materials in any part of your water-supply system:

v Oxidizing biocides, such as chlorine, bromine, and chlorine dioxide v Aluminum v Brass with greater than 30% zinc v Irons (nonstainless steel)

Water-supply requirements for secondary loops

Learn about the specific characteristics of the system that supplies the chilled conditioned water to the heat exchanger.

Temperature:

The heat exchanger and its supply hose and return hoses are not insulated. Avoid any condition that might cause condensation. The temperature of the water inside the supply hose, return hose, and heat exchanger must be kept above the dew point of the location where the heat exchanger is being used.

Attention: Typical primary chilled water is too cold for use in this application because building chilled water can be as cold as 4°C - 6°C (39°F - 43°F).

Important:

Site and hardware planning 73

The system that supplies the cooling water must be able to measure the room dew point and automatically adjust the water temperature accordingly. Otherwise, the water temperature must be above the maximum dew point for that data center installation. For example, the following minimum water temperature must be maintained:

v 18°C plus or minus 1°C (64.4°F plus or minus 1.8°F). This specification is applicable within an

ASHRAE Class 1 Environmental Specification that requires a maximum dew point of 17°C (62.6°F).

v 22°C plus or minus 1°C (71.6°F plus or minus 1.8°F). This specification is applicable within an

ASHRAE Class 2 Environmental Specification that requires a maximum dew point of 21°C (69.8°F).

See the ASHRAE document Thermal Guidelines for Data Processing Environments.

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.

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.

Water volume limits:

The heat exchanger holds approximately 9 liters (2.4 gallons). Fifteen meters (50 ft) of 19 mm (0.75 in.) supply and return hoses hold approximately 9.4 liters (2.5 gallons). To minimize exposure to flooding in the case of leaks, the entire product cooling system (heat exchanger, supply hose, and return hose), excluding any reservoir tank, must have a maximum 18.4 liters (4.8 gallons) of water. This is a cautionary statement, not a functional requirement. Also, consider using leak detection methods on the secondary loop that supplies water to the heat exchanger.

Air exposure:

The secondary cooling loop is a closed loop, with no continuous exposure to room air. After you fill the loop, remove all air from the loop. An air bleed valve is provided at the top of a heat exchanger manifold for purging all air from the system.

Water delivery specifications for secondary loops

Learn about the various hardware components that make up the delivery system secondary loop that provides the chilled, conditioned water to the heat exchanger. The delivery system includes pipes, hoses, and the required connection hardware to connect the hoses to the heat exchanger. Hose management can be used in raised-floor and non-raised-floor environments.

The heat exchanger can remove 100% or more of the heat load from an individual rack when it is running under optimum conditions.

The primary cooling loop is considered to be the building chilled-water supply or a modular chiller unit. The primary loop must not be used as a direct source of coolant for the heat exchanger.

Procurement and installation of the components that are needed to create the secondary cooling loop system are required for this design and are your responsibility. The main purpose is to provide examples of typical methods of secondary loop setup and operating characteristics that are needed to provide an adequate and safe supply of water to the heat exchanger.

74 Site and hardware planning

Attention:

The overpressure safety device must meet the following requirements:

v Comply with ISO 4126-1. v Be installed so that it is easily accessed for inspection, maintenance, and repair. v Be connected as close as possible to the device that it is intended to protect. v Be adjustable only with the use of a tool. v Have a discharge opening that is directed so that discharged water or fluid does not create a hazard or

be directed toward any person.

v Be of adequate discharge capacity to ensure that the maximum working pressure is not exceeded. v Be installed without a shutoff valve between the overpressure safety device and the protected device.

Read the following guidelines before you design the installation: v A method for monitoring and setting the total flow rate that is delivered to all of the heat exchangers is

required. This can be a discrete flowmeter that is built into the flow loop or a flowmeter within the secondary loop of the coolant distribution unit (CDU).

v After you set the total flow rate for all of the heat exchangers by using a flowmeter, it is important to

design the plumbing so that it provides the flow rate that you want for each heat exchanger and provides a way to verify the flow rate. Other methods, such as inline or external flowmeters, can provide a more accurate method for setting the flow rate through the individual shutoff valves.

v Design the flow loop to minimize the total pressure drop within the flow loop. The Optional Low

Impedance Quick Connect feature cannot use the Parker quick-connect couplings that are used on the heat exchanger because of the excessive pressure drop that is associated with flowing through four quick-connect pairs in series. These must be very low, near 0, flow impedance quick connects. Alternatively, these quick connects can be eliminated and replaced with a hose barb connection.

Manifolds and piping:

Manifolds that accept large-diameter feed pipes from a pump unit are the preferred method for splitting the flow of water to smaller-diameter pipes or hoses that are routed to individual heat exchangers. Manifolds must be constructed of materials that are compatible with the pump unit and related piping. The manifolds must provide enough connection points to allow a matching number of supply and return lines to be attached, and the manifolds must match the capacity rating of the pumps and the loop heat exchanger (between the secondary cooling loop and the building chilled-water source). Anchor or restrain all manifolds to provide the required support to avoid movement when quick-connect couplings are connected to the manifolds.

Example of manifold supply pipe sizes: v 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).

v 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.

v 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.

To stop the flow of water in individual legs of multiple circuit loops, install shutoff valves for each supply and return line. This provides a way to service or replace an individual heat exchanger without affecting the operation of other heat exchangers in the loop.

To ensure that water specifications are being met and that the optimum heat removal is taking place, use temperature and flow metering (monitoring) in secondary loops.

Anchor or restrain all manifolds and pipes to provide the required support and to avoid movement when quick-connect couplings are being attached to the manifolds.

Flexible hoses and connections to manifolds and heat exchangers:

Site and hardware planning 75