HP Performance Optimized Data Center (POD) 240a User Manual

HP Performance Optimized Datacenter 240e

Part Number: 748899-001

North America (Adiabatic) User Guide

Abstract

This guide is intended for the person who operates and maintains the HP Performance Optimized Datacenter 240e NA (HP POD 240e NA).

November 2013 Edition: 1

© Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express

warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Overview ..................................................................................................................................... 6

Before you begin ....................................................................................................................................... 6

Operator safety ......................................................................................................................................... 6

Component safety ..................................................................................................................................... 6

Fire detection ............................................................................................................................................ 7

Preventative maintenance ........................................................................................................................... 7

Environmental considerations ...................................................................................................................... 7

Component identification ............................................................................................................... 8

Structural component identification .............................................................................................................. 8

Parts and part number identification ................................................................................................... 9

Life safety component identification ........................................................................................................... 10

Electrical power component identification ................................................................................................... 13

Control cabinet component identification .................................................................................................... 16

Security component identification .............................................................................................................. 17

Racks ..................................................................................................................................................... 18

Life safety systems ....................................................................................................................... 19

Life safety overview ................................................................................................................................. 19

EPO system ............................................................................................................................................ 19

ECS touchscreen and EPO indicators ............................................................................................... 20

EPO modes ................................................................................................................................... 21

EPO accidental activation ............................................................................................................... 21

Battery backup during an EPO event ................................................................................................ 21

Fire detection system ................................................................................................................................ 22

VESDA air sampling smoke detection system ..................................................................................... 22

Manual fire pulls ........................................................................................................................... 22

Fire alarm panel ............................................................................................................................ 23

Fire alarm indicators ...................................................................................................................... 23

Emergency egress ................................................................................................................................... 24

Power, electrical, and controls ...................................................................................................... 25

Site electrical system ................................................................................................................................ 25

Power safety ........................................................................................................................................... 25

Grounding and bonding ................................................................................................................ 25

Capacities .............................................................................................................................................. 26

Power feeders ......................................................................................................................................... 27

Electrical panel labels .............................................................................................................................. 27

Power distribution: electrical busway system ..................................................................................... 28

Power distribution: Adiabatic system ................................................................................................ 28

Panel schedules ............................................................................................................................. 29

Wire color code ............................................................................................................................ 29

Electrical busways ................................................................................................................................... 30

Drop boxes ............................................................................................................................................ 32

Rack power ............................................................................................................................................ 32

Lighting .................................................................................................................................................. 33

Environmental control system ........................................................................................................ 34

Contents 3

Environmental control system overview ....................................................................................................... 34

Using the ECS ......................................................................................................................................... 34

Components of the ECS .................................................................................................................. 35

Satellite control boxes .................................................................................................................... 35

Facility connections to the ECS .................................................................................................................. 35

Connecting to the ECS through the demarcation box .......................................................................... 36

Connecting to the ECS through connection portals ............................................................................. 36

Managing the ECS from the HP POD 240e NA .......................................................................................... 37

Configuring the ECS ...................................................................................................................... 38

Logging in remotely to the ECS ........................................................................................................ 40

Password protected ................................................................................................................................. 42

Navigating the ECS interface .................................................................................................................... 42

Logging in to the ECS touchscreen ................................................................................................... 43

View ............................................................................................................................................ 43

Configure ..................................................................................................................................... 54

Managing the ECS system ........................................................................................................................ 56

Setting the Min and Max temperature and RH setpoints ...................................................................... 56

Setting the Min and Max range for alarms ........................................................................................ 56

Setting the offset alarm ................................................................................................................... 57

Setting the IP address ..................................................................................................................... 57

Forcing an alarm ........................................................................................................................... 57

Maintaining the ECS parameters ............................................................................................................... 58

Temperature and pressure sensors ................................................................................................... 58

Adiabatic units .............................................................................................................................. 60

Controlling the hot aisle fans ........................................................................................................... 60

AHU system ............................................................................................................................... 61

Overview ............................................................................................................................................... 61

Adiabatic components ................................................................................................................... 61

Adiabatic media ........................................................................................................................... 62

AHU theory of operation .......................................................................................................................... 62

Static pressure control .................................................................................................................... 65

IT networking and communications ............................................................................................... 66

Networking ............................................................................................................................................ 66

Connection portals .................................................................................................................................. 66

Demarcation box .................................................................................................................................... 67

Fire box ................................................................................................................................................. 68

Adding a phone ...................................................................................................................................... 68

Standard components .................................................................................................................. 70

Air filter sensor ........................................................................................................................................ 70

Optional components .................................................................................................................. 71

HP POD 240e NA optional components .................................................................................................... 71

Power feeder pull boxes ........................................................................................................................... 71

Specifications ............................................................................................................................. 72

General specifications ............................................................................................................................. 72

Rack specifications .................................................................................................................................. 72

Environmental specifications ..................................................................................................................... 73

Maintenance .............................................................................................................................. 74

Periodic maintenance .............................................................................................................................. 74

Preparing the Adiabatic units for winter ..................................................................................................... 74

Contents 4

Supply header gravity drain ........................................................................................................... 76

Adiabatic unit by unit blowdown ..................................................................................................... 77

Supply header blowdown ............................................................................................................... 78

Power up procedure ................................................................................................................................ 79

Standard power up procedure ........................................................................................................ 79

Cold weather power up procedure .................................................................................................. 80

Power down procedure ............................................................................................................................ 83

Full power down procedure ............................................................................................................ 83

Contacting HP ............................................................................................................................ 84

Before you contact HP .............................................................................................................................. 84

HP contact information ................................................................................................................... 84

Regulatory compliance notices ..................................................................................................... 85

HP POD 240e NA regulatory compliance .................................................................................................. 85

Safety and NEC compliance ........................................................................................................... 85

Safety and regulatory compliance ............................................................................................................. 86

Turkey RoHS material content declaration ................................................................................................... 86

Ukraine RoHS material content declaration ................................................................................................. 86

Warranty information .............................................................................................................................. 86

Glossary .................................................................................................................................... 87

Documentation feedback ............................................................................................................. 90

Index ......................................................................................................................................... 91

Contents 5

Overview

Before you begin

For more information about site requirements, specifications, power, management requirements, and supported facility connections, see the HP Performance Optimized Datacenter 240e NA Site Preparation and Requirements Guide.

The location of various components or subsystems in the HP POD 240e NA might vary from this documentation. For final placement specifications, see the data sheets that are included in the operations

Operator safety

and maintenance manual.

The HP POD 240e NA is not habitable or suitable for human occupancy. The HP POD 240e NA is Listed as a Product that provides service access areas for periodic maintenance and service. These areas must be controlled and available for use only by owner-authorized personnel and qualified personnel who are trained in the maintenance and service of the HP POD 240e NA components.

WARNING: To avoid the risk of personal injury or loss of life, all personnel must comply with PPE

requirements when opening or working inside areas of the HP POD 240e NA that are marked as hazardous voltage, per NFPA 70E in accordance with NEC (NA) and IEC (EMEA and APJ).

WARNING: To avoid the risk of personal injury, hearing protection must be worn at all times

when working inside the HP POD 240e NA.

WARNING: To avoid the risk of personal injury or damage to the equipment, do not insert

anything inside the electrical busways, except for the approved HP busway drop boxes.

Before completing the installation of the HP POD 240e NA, the customer, or a designated agent, is responsible for completing any Environmental Health and Safety evaluation of the HP POD 240e NA or any attached structural component purchased through HP. The customer, or their designated agent, must also complete an arc flash assessment and breaker coordination study of the HP POD 240e NA and the associated electrical supply system for operation and maintenance. The individual or organization that completes the arc flash assessment must also create and provide all required labeling for all electrical panels on the HP POD 240e NA.

Component safety

CAUTION: If the HP POD 240e NA is shut down for an extended period of time, such as during

routine maintenance, use desiccant units or materials to eliminate condensation within the HP POD 240e NA. Condensation causes damage to IT equipment and HP POD 240e NA controls.

Overview 6

CAUTION: Electrostatic discharge might damage electronic components. Be sure that you are

properly grounded (earthed) by wearing approved grounding straps before beginning any installation procedure or repair.

CAUTION: If any racks contain empty RU space, use the HP POD 240e NA filler panels to

maintain the efficiency of the HP POD 240e NA thermal system. Filler panels are available from HP in 10-pack quantities (part number AQ682A) and 100-pack quantities (part number AS993A).

Fire detection

The fire detection system is supplied as a component of the HP POD 240e NA, and is Manufacturer Designed specifically for this HP product, in compliance with national standards.

HP does not certify that the fire detection system that is installed in the HP POD 240e NA meets all local and jurisdictional requirements. The customer is responsible for the following actions:

• Verifying that the POD fire detection system meets local codes, including specific local requirements for

initial and periodic inspections

• Arranging for and receiving all required local permits, including initial commissioning as well as

standard and repair maintenance

• General maintenance of the fire detection system must be completed by an authorized technician

For more information, see the HP Performance Optimized Datacenter 240e NA Maintenance and Service guide.

Any additional local requirements are not covered as part of the installation and deployment services of the fire detection system, unless specifically included in an executed SOW.

Preventative maintenance

You are responsible for creating and performing detailed preventative maintenance based on HP recommendations. Data sheets or additional operation and maintenance manuals will be provided for this task.

CAUTION: Failure to implement a comprehensive preventative maintenance schedule may result

in reduced efficiency in the HP POD 240e NA, failure of main or subsidiary systems, and loss of warranty on third party components.

Environmental considerations

CAUTION: To maintain accurate environmental conditions and minimize condensation inside

the HP POD 240e NA, do not leave the HP POD 240e NA doors open during operation.

Overview 7

Component identification

Structural component identification

The HP POD 240e NA documentation frequently refers to these specific components of the HP POD 240e NA.

The following figure shows the assembled HP POD 240e NA structural components.

The following figure shows the exploded view of the individual sections of the HP POD 240e NA.

Component identification 8

Item Component Description

Canopy The canopy has two 6.10 m (20 ft) parts that are installed on top of the HP

POD 240e NA.

Adiabatic units and

Each of the four cradles contain three Adiabatic units. cradles AHU service area end

The HP POD 240e offers AHU service access in these two locations. walls IT section A (primary structure)

The IT section A (primary structure) contains the ECS. Conditioned air passes

through the IT section A and IT section B structures to force cool air through the

IT equipment. Hot aisle The hot aisle structure is a separate space where hot exhaust air from the

servers can be expelled out of the structure or recirculated. The HP POD 240e

isolates the IT sections from the hot aisle for efficiency. IT section B (secondary

structure)

IMPORTANT: You must consult with the AHJ to determine the egress requirements for the hot-aisle

The IT section B (secondary structure) is similar to the IT section A (primary

structure), but IT section B does not contain the ECS.

service area that you must provide. Requirements might include landings and stairs to be installed at both ends of the hot aisle service area for emergency egress.

Parts and part number identification

Review all of the contents to identify the following for each component: Regulatory model number The following figure shows the location of the regulatory model number and the POD solution serial numbers

on the inside of each IT section, adjacent to the bump out. Interior side view shown

CSC Safety Approval placard

Component identification 9

Each HP POD 240e NA Adiabatic AHU has a CSC Safety Approval placard that includes model number, serial number, and proof load. Each AHU has a different serial number. The following figure shows the CSC Safety Approval placard locations.

Side view single AHU cradle shown

Life safety component identification

Internal life safety components Top view shown

Item Component Description

Emergency switch locations There are six emergency switch boxes, one by each personnel access

door throughout the HP POD 240e NA. Each emergency switch box includes items (2) and (3).

Fire alarm manual pull Enables manual initiation of the fire system, which includes the

activation of the interior and exterior fire strobe lights.

EPO button Disconnects the HP POD 240e NA from main power feeds and

activates the red EPO indicator light on the outside of the HP POD 240e NA. To reset the EPO button, switch the EPO to the Active position. Failure to do so prevents the HP POD 240e NA from being able to restart.

Exit sign locations

Component identification 10

Top view shown

Internal emergency lighting Top view shown

Internal emergency status indicators

Component identification 11

Top view shown

•

There is one fire strobe light in each aisle of the HP POD 240e NA. When illuminated, these lights indicate a fire alarm condition within the HP POD 240e NA.

External emergency status indicators

Item Component Description

External EPO status indicator Indication of operating status:

White—Normal operating mode Yellow—Bypass operating mode Red—EPO shutdown mode

Fire strobe light Indicates a fire alarm condition within the HP POD 240e NA.

There is one fire strobe light on each side of the HP POD 240e NA.

Component identification 12

requirements when opening or working inside areas of the HP POD 240e NA that are marked as

•

Electrical power component identification

WARNING: To avoid the risk of personal injury or loss of life, all personnel must comply with PPE

End view shown

hazardous voltage, per NFPA 70E in accordance with NEC (NA) and IEC (EMEA and APJ).

WARNING: To avoid the risk of personal injury or loss of life, all personnel must comply with

electrical warning labels when operating and maintaining the electrical panels and systems of the HP POD 240e NA.

Item Component Description

Demarcation box Customer communication connection point:

ECS Access control Phone

2 3

Fire box Connection location for fire emergency and VESDAnet signals 415/240V 3-phase, wye,

A feed power for IT Section A electrical busways and house power 4-wire 415/240V 3-phase, wye,

B feed power for IT Section A electrical busways and house power 4-wire Mechanical power feed

A and B feed power for the IT Section A AHU cabinet Mechanical power feed

A and B feed power for the IT Section B AHU cabinet 415/240V 3-phase, wye,

B feed power for IT Section B electrical busways and house power 4-wire 415/240V 3-phase, wye,

A feed power for IT Section B electrical busways and house power 4-wire

Main breaker locations

Component identification 13

End view shown

External safety labels End view shown

Callout Electrical safety label Description

3 4

Danger sign Reminds you that the electrical panels must only be

accessed by authorized personnel.

Disconnect label Provides the disconnect order for all of the electrical

panels. Caution Cautions you about isolating power from the product. Arc flash warning Reminds you of arc flash danger and required PPE.

The customer must complete an arc flash assessment of the HP POD 240e NA and the associated electrical supply system for such things as operation and maintenance.

Internal panel labels

Component identification 14

End view shown

•

Callout Electrical safety label Description

1 2

3 4

Input power Lists the input power information Panel schedule/circuit breaker

table Fuse type table Lists all fuse types and sizes Wire color code 415/240V wye color codes

Lists the layout and designation for all circuit breakers on the panel

Purple/Brown Purple/Orange Purple/Yellow Purple/White—Neutral Green and yellow—Equipment ground

Electrical power disconnect map label location

Component identification 15

Control cabinet component identification

•

ECS modules and terminal

Used for ECS communication, I/O connections, and terminal block

All circuits in the control cabinet are labeled with the panel name and circuit breaker number. Each IT section has one control cabinet that houses the various control components for that IT section. IT section A control cabinet The ECS and fire panel controls are located in the IT section A control cabinet.

Item Component Description

VESDA air sampling smoke detection unit Fire alarm control panel

An early warning laser scan smoke detection unit

Controls all fire systems within the HP POD 240e NA,

including the smoke detection system and manual fire pulls

Includes a battery backup system to provide backup power to

the fire system in the event of power loss to the HP POD 240e NA

6 7

9 10

UPS Provides backup power to the IT section A VESDA in the event of

power loss to the HP POD 240e NA

Access control module Controls and organizes information that is monitored by the HP

POD 240e NA access control components

Customer access control junction box

ECS relays Relays for the ECS control

blocks House power fuses and terminal

blocks Power supply* Provides 24V DC power to the PLC, ECS, and LED lighting

UPS* Provides battery backup power to the PLC and ECS in the event of

240/120V transformer Provides house power to IT section A convenience outlets

Provides a location for the facility access control components and connects the facility to the HP POD 240e NA

connections Provide house power to the HP POD 240e NA convenience outlets

and lighting

power loss to the HP POD 240e NA

Component identification 16

Item Component Description

*These components are only installed in the IT section A control cabinet.

PLC* The computer located on the inside door of the control cabinet that

controls the ECS system

IT section B control cabinet

Item Component Description

2 3

6 7

VESDA air sampling smoke detection unit Fire system junction box Junction box to connect the IT section B fire system to IT section A

UPS Provides backup power to the IT section B VESDA in the event of

DIN rail with EPO modules Sends a signal to all of the connected EPO devices

DIN rail with terminals and ECS communication modules DIN rail with terminals and fuses Sends information from IT section B to the PLC in IT section A

240/120V transformer Provides house power to IT section B for convenience outlets

An early warning laser scan smoke detection unit

power loss to the HP POD 240e NA

For more information, see "EPO system (on page 19)." Sends information from IT section B to the PLC in IT section A

For more information about the specific control components within the control cabinet, see the Operations and Maintenance Manual for the HP Performance Optimized Datacenter 240e North America (Adiabatic).

Security component identification

The security system components are located in the hot aisle porch.

Component identification 17

Top view shown

Item Component Description

4 5

Racks

The HP POD 240e NA has 22 IT racks per IT section, for a total of 44 IT racks per HP POD 240e NA.

For more information about racks and network cabling, see the HP POD 240e NA Networking Guide.

Security panel and Mag lock power supply

Security card access door termination Security card access battery backup

Main security controller board Controls all security components Cross connect for IT section A

and B doors

CAUTION: If any racks contain empty RU space, use the HP POD 240e NA filler panels to

Provides power for the security panel and the personnel access door Mag locks

Controls card readers on the personnel access doors

Provides battery backup for the card readers on the personnel access doors

Provides power and sends signals to the installed access control components

maintain the efficiency of the HP POD 240e NA thermal system. Filler panels are available from HP in 10-pack quantities (part number AQ682A) and 100-pack quantities (part number AS993A).

Component identification 18

Life safety systems

Life safety overview

The HP POD 240e NA has multiple life safety systems that work together to protect the HP POD 240e NA equipment and personnel. The following life safety systems are included on the HP POD 240e NA:

• EPO system (on page 19)

• Fire detection system (on page 22)

• Emergency egress (on page 24)

• Facility connections to ECS ("Facility connections to the ECS" on page 35)

EPO system

If the HP POD 240e NA must be shut down during an emergency, the EPO system automatically powers off the HP POD 240e NA, activates the EPO indicator on the ECS panel door, and changes the EPO status light tree that is located on the POD exterior to red.

To be sure that all rack-mounted UPS devices are shut down during an EPO event, verify that each rack-mounted UPS device is connected to the HP POD 240e NA EPO system.

The EPO system can be activated two ways:

• Excessive high temperature in the hot aisle—The HP POD 240e NA includes two thermisters. If both

thermisters reach 60°C (140°F), an EPO shutdown is triggered automatically.

Side view

• Manual initiation—To manually trigger an EPO shutdown, press any of the EPO buttons. There are EPO

buttons located next to the personnel access doors in the POD. For the location of EPO buttons, see "Life safety component identification (on page 10)."

Life safety systems 19

IMPORTANT: The EPO system must be reset before you can power up and restart the HP POD

•

240e NA.

To reset the EPO system:

1. Determine and correct the reason for EPO system initiation.

2. If the EPO was triggered manually, the EPO button that was pushed must be reset by rotating the button

as indicated.

3. Verify the key control for the EPO mode is in the Armed position.

4. Press and release the white EPO reset button.

ECS touchscreen and EPO indicators

The ECS touchscreen and EPO indicators are located on the IT section A control panel door. The touchscreen enables easy configuration of environmental parameters and access data, and also

monitors environmental, life safety, and security conditions within the HP POD 240e NA. The EPO indicators provide the EPO status and enable the EPO system mode to be adjusted.

Item Component Indicator color Description

External EPO status

indicator

White—Normal operating mode Yellow—Bypass operating mode

Indicates the operating status of the HP POD 240e NA

Red—EPO shutdown mode

Power on White Indicates the EPO power status

EPO shutdown Red Indicates an EPO shutdown or alarm

EPO armed White Indicates the EPO system is armed and

EPO bypass mode Yellow Indicates the EPO is operating in bypass

EPO bypassed Green Indicates that the EPO functionality and

condition

operational

mode

shutdown is bypassed

Life safety systems 20

Item Component Indicator color Description

•

EPO mode Key control The key control allows you to select the

EPO reset White button Select to reset the EPO system

EPO modes

The EPO system has three operating modes:

• Armed—The EPO system is armed and operational.

• Test—The EPO system is in test mode and will not power off the HP POD 240e NA in the events that

would normally trigger an EPO.

• Bypass—The EPO system is non-operational and will not power off the HP POD 240e NA in any events

that normally trigger an EPO.

For more information, see "ECS touchscreen and EPO indicators (on page 20)."

EPO mode:

Armed Test Bypass

The illuminated external EPO status indicator displays the current EPO mode.

• White—The EPO system is armed and operational.

• Red—There has been an EPO event and the HP POD 240e NA is shutdown.

• Yellow—The EPO system is operating in test mode.

EPO accidental activation

To help prevent accidentally pressing the EPO button and activating the EPO system, each EPO button is covered with a clear Lexan cover.

Battery backup during an EPO event

The following components are equipped with a UPS to help be sure that service is not interrupted during a loss of power to the HP POD 240e NA:

• Environmental control system (on page 34)

• VESDA air sampling smoke detection system (on page 22)

• Fire detection system (on page 22)

• Lighting (on page 33)

IMPORTANT: All critical IT UPS devices with batteries that exceed 700VA must be connected to

the HP POD 240e NA EPO system, to be sure that the UPS batteries are disconnected during an EPO event. For more information about connecting UPS devices to the EPO system, see the HP Performance Optimized Datacenter 240e NA Maintenance and Service Guide.

Life safety systems 21

Fire detection system

Each HP POD 240e NA is equipped with a fire alarm panel that is integrated with the fire detection system. The fire system is designed as a stand-alone system, but the system can also interface with customer site fire

alarm systems. Customer site connections are the responsibility of the customer. Consult with HP for connection locations.

The fire protection system includes:

• VESDA air sampling smoke detection system (on page 22)

• Manual fire pulls (on page 22)

• Fire alarm panel (on page 23)

• Fire alarm indicators (on page 23)

VESDA air sampling smoke detection system

CAUTION: Excess dust within the HP POD 240e NA can cause the VESDA smoke detector to

The VESDA system features a single zone laser scan early warning smoke detector to provide the earliest warning of a potential fire.

The orange VESDA piping that runs throughout the HP POD 240e NA includes inlets for smoke sampling. The VESDA uses a high-efficiency aspirator to continuously draw in air from the HP POD 240e NA and circulate the air through a dual-stage filter:

• Stage 1—A filter removes dust and dirt from the air sample.

• Stage 2—An ultra-fine filter removes remaining contaminants in the air sample.

After the air passes through the dual-stage filter, it enters a calibrated detection chamber where a laser scans the air sample for the presence of smoke. The VESDA system cycles through two levels if smoke is detected:

• Level 1—Smoke concentration reaches the first setpoint, and the VESDA system sends an alarm signal

• Level 2—Smoke concentration reaches the second setpoint, and the VESDA system indicates that a fire

trigger a fire alarm.

indicating that a fire might exist.

exists in the HP POD 240e NA.

IMPORTANT: The VESDA filter must be changed regularly to be sure that smoke detection

readings are accurate. For more information about changing the VESDA filters, see the HP Performance Optimized Datacenter 240e NA Maintenance and Service Guide.

Manual fire pulls

The HP POD 240e NA has six fire pulls; two in each aisle. They are located in the life safety switch cabinet next to each personnel door of the HP POD 240e NA.

Manually activating a fire pull does the following:

• Triggers a fire alarm

• Activates the fire alarm system horn and strobe lights

Life safety systems 22

Fire alarm panel

The fire alarm panel is located in the control cabinet in IT section A and receives signals from the VESDA or manual fire pulls if an alarm condition exists. If an alarm condition does exist, the fire alarm panel activates the fire alarm indicators and sends a signal to the site fire alarm system, if installed.

The fire alarm panel also has a battery backup system that provides backup power to the fire detection system in the event of power loss to the HP POD 240e NA.

The control panel includes the following components:

• Alarm status LED

• Trouble status LED

• Input status LED

• Output status LED

• Acknowledge button

• Alarm Silence button

• System Reset button

Fire detection sequence of operations

There are two initiation sequences for the fire detection system, automatic (VESDA) initiation and manual initiation. The fire strobe light is activated by either initiation sequence.

The fire alarm horn will sound in a temporal mode for any VESDA or manual fire pull initiation. The fire system operator panel indicates which initiation sequence is active, using the indicator lights and a

panel alarm. These signals are also available to the site BMS system, if they are connected. VESDA initiation When smoke is detected, the VESDA fire detection system cycles through two levels, as described below.

• Level 1—Indicates the potential for a fire is present. The strobes illuminate and the horns sound.

• Level 2—Indicates that a fire exists. VESDA level 1 might have be reached; the strobes illuminate and

the horns sound. Manual initiation Manual initiation triggers the fire alarm, causes the fire strobe lights to illuminate, and sounds the horn.

Fire alarm indicators

Upon activation of a fire alarm within the HP POD 240e NA, the following alarms alert personnel:

• Strobe lights

o Internal—The HP POD 240e NA has three fire strobe lights; one in each aisle.

o External—The HP POD 240e NA has two fire strobe lights; one on each side.

• Audible horn—The HP POD 240e NA has three horns; located with the three internal strobe lights

• Alarm within the ECS

Life safety systems 23

Emergency egress

The HP POD 240e NA includes the following features for life safety egress on all access doors:

• Exit signs

• Panic bar

• Door strikes

o Standard hardware—Door strikes

o Optional hardware—Electric door strikes

Each personnel door includes a standard panic bar to be sure there is a safe exit. Any of the optional egress hardware that is included in the HP POD 240e NA (including electric panic bar, electric strikes, and magnetic locks) are tied to the fire alarm to enable uninhibited egress in the event of an emergency.

Life safety systems 24

Power, electrical, and controls

requirements when opening or working inside areas of the HP POD 240e NA that are marked as

Site electrical system

To be sure that the POD solution is completely and safely integrated with your facility, HP requires that you complete the following actions for the installed electrical system prior to the installation of the HP POD solution:

• Short circuit analysis

• Arc flash study

• Circuit breaker coordination study

These actions must be performed for all associated parts of the electrical power train. The majority of the details and factors that are required to complete these studies are associated with the existing installed facility infrastructure.

CAUTION: Failure to complete these studies can cause serious issues with the electrical

integration of the POD into your electrical system.

Power safety

WARNING: To avoid the risk of personal injury or loss of life, all personnel must comply with PPE

Grounding and bonding

The HP POD 240e NA must be properly earthed to be sure that a common return path for electric current exists, limit the build-up of static electricity, and absorb an unlimited amount of current without changing its potential. To properly ground the HP POD 240e NA to the earth, you must connect the POD to building steel, a ground rod, or a properly installed ground well that is connected to a building’s grounding system. The grounding electrode conductor connection point is located on the cold aisle side adjacent to the power cabinet.

Grounding

A certified electrician must test and verify the HP POD 240e NA is properly grounded.

hazardous voltage, per NFPA 70E in accordance with NEC (NA) and IEC (EMEA and APJ).

WARNING: To avoid the risk of personal injury or electric shock, the HP POD 240e NA must be

properly earthed (grounded), and each of the individual sections must be bonded together per NFPA 70 in accordance with NEC (NA) and IEC (EMEA and APJ).

The HP POD 240e NA includes the following types of grounding. Earth ground

Power, electrical, and controls 25

Side view shown

Bonding All structural sections of the HP POD 240e NA are bonded by connecting all metallic, non-current carrying

items throughout the HP POD 240e NA to protect from electric shock. If all steel-to-steel areas are bonded to one another, each object then has the same electrical potential which ultimately dissipates any high voltage or shock across the entire HP POD 240e NA, minimizing any effects from a lightning strike, per NFPA 70 in accordance with NEC (NA) and IEC (EMEA and APJ).

Lightning protection

The HP POD 240e NA structure and internal components are all bonded together. A common grounding electrode conductor connection point is provided. Proper bonding and grounding of the HP POD 240e NA minimizes the effects of a lightning strike. A surge protection device is provided on the HP POD 240e NA input connection to protect the HP POD 240e NA electrical system from voltage transients. If your site is in an area that is subject to frequent lightning strikes, the HP POD 240e NA must be protected in accordance with NFPA 70 (NA) and IEC (EMEA and APJ). HP recommends that you contact a certified lightning protection consultant.

Capacities

Each HP POD 240e NA is unique and the specific power and cooling capacities vary for each POD that uses Adiabatic cooling. For specific capacity information, see your HP Performance Optimized Datacenter 240e NA Customized Supplement.

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