HP Performance Optimized Data Center (POD) 20cp User Manual

HP Performance Optimized Datacenter 20c

Part Number: 703549-001

User Guide—International

Abstract

This guide is intended for the person who operates and maintains the HP Performance Optimized Datacenter 20c (HP POD 20c).

March 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.

Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor’s standard commercial license.

Microsoft® and Windows® are U.S. registered trademarks of Microsoft Corporation. Intel® Core™ is a trademark of Intel Corporation in the U.S. and other countries.

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

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

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

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

Fire detection and suppression .................................................................................................................... 7

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

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

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

Parts and part number identification ................................................................................................... 8

Life safety component identification ............................................................................................................. 9

Electrical power component identification ................................................................................................... 12

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

HP POD 20c racks .................................................................................................................................. 17

Life safety systems ....................................................................................................................... 18

Life safety overview ................................................................................................................................. 18

EPO system ............................................................................................................................................ 18

ECS touchscreen and EPO indicators ............................................................................................... 19

EPO modes ................................................................................................................................... 20

EPO accidental activation ............................................................................................................... 20

Battery backup during an EPO event ................................................................................................ 20

VESDA air sampling smoke detection system ............................................................................................... 21

(Optional) Fire protection system ............................................................................................................... 21

Manual fire button ......................................................................................................................... 21

Fire alarm indicators ...................................................................................................................... 22

Fire suppression system .................................................................................................................. 22

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

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

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

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

Grounding .................................................................................................................................... 25

Capacities .............................................................................................................................................. 27

HP POD 20c capacity limitations ..................................................................................................... 27

Electrical and mechanical cooling capacities .............................................................................................. 27

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

Electrical panels ...................................................................................................................................... 28

Arc flash safety ............................................................................................................................. 28

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

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

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

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

Drop boxes ............................................................................................................................................ 31

Power configurations ............................................................................................................................... 32

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

HP POD 20c lighting ............................................................................................................................... 33

Contents 3

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

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

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

Sensors ........................................................................................................................................ 35

Facility connections to ECS ....................................................................................................................... 38

Connecting to the ECS ................................................................................................................... 38

Managing the ECS from the HP POD 20c................................................................................................... 39

Configuring the ECS ...................................................................................................................... 39

Logging in remotely to the ECS ........................................................................................................ 41

Password protection ................................................................................................................................ 43

Navigating the ECS interface .................................................................................................................... 43

Logging in to the ECS touchscreen ................................................................................................... 44

Overview screen ........................................................................................................................... 45

Status Overview screen .................................................................................................................. 47

Basic System Configuration screen ................................................................................................... 47

Advanced System Configuration screen ............................................................................................ 52

Controller Settings screen ............................................................................................................... 55

I/O Overview screen ..................................................................................................................... 57

ECS alarms ............................................................................................................................................ 57

Safety and access control alarms ..................................................................................................... 58

Cooling system ........................................................................................................................... 59

HP POD 20c cooling system theory of operation ......................................................................................... 59

Water supply temperature .............................................................................................................. 59

Water quality requirements and specifications .................................................................................. 60

Cooling system components ...................................................................................................................... 61

Fans ............................................................................................................................................ 62

Condensation management ...................................................................................................................... 63

Drains .......................................................................................................................................... 63

Leak detection ............................................................................................................................... 65

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

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

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

Demarcation box .................................................................................................................................... 66

Fire box ................................................................................................................................................. 67

Optional components .................................................................................................................. 68

Fire protection system .............................................................................................................................. 68

Humidifier .............................................................................................................................................. 68

Controlled access .................................................................................................................................... 68

Power up procedure .................................................................................................................... 69

Standard HP POD 20c power up procedure ............................................................................................... 69

Power up checklist ......................................................................................................................... 69

Standard power up procedure ........................................................................................................ 70

Cold weather HP POD 20c power up procedure ......................................................................................... 70

Cold weather power up checklist ..................................................................................................... 71

Standard power up procedure ........................................................................................................ 71

Power down procedure ............................................................................................................................ 73

Specifications ............................................................................................................................. 74

General HP POD 20c specifications .......................................................................................................... 74

Electrical specifications .................................................................................................................. 74

Water specifications ...................................................................................................................... 75

Contents 4

Rack specifications .................................................................................................................................. 75

Thermal and air flow performance ............................................................................................................. 75

Environmental specifications ..................................................................................................................... 75

Maintenance .............................................................................................................................. 77

Periodic maintenance .............................................................................................................................. 77

Sample HP POD 20c maintenance schedule ............................................................................................... 77

Contacting HP ............................................................................................................................ 78

Before you contact HP .............................................................................................................................. 78

HP contact information ................................................................................................................... 78

Regulatory information ................................................................................................................ 79

HP POD 20c regulatory compliance .......................................................................................................... 79

Safety and IEC compliance ............................................................................................................. 79

Safety and regulatory compliance ............................................................................................................. 80

Turkey RoHS material content declaration ................................................................................................... 80

Ukraine RoHS material content declaration ................................................................................................. 80

Warranty information .............................................................................................................................. 80

Glossary .................................................................................................................................... 81

Documentation feedback ............................................................................................................. 84

Index ......................................................................................................................................... 85

Contents 5

Overview

Before you begin

For more information on site requirements, specifications, power requirements, management requirements, and supported facility connections, see the HP Performance Optimized Datacenter 20c Site Preparation and Requirements Guide.

This guide is part of the core documentation for the HP POD 20c. The actual location of various components or included subsystems and their operation in your HP POD 20c might vary from what is described in this document. For information specific to your HP POD 20c, see the drawings included in the Operations and

Operator safety

Maintenance Manual for the HP Performance Optimized Datacenter 20c, or contact HP.

The HP POD 20c is not suitable for long-term human occupancy. The HP POD 20c is Listed as a Product that provides service access areas for periodic maintenance and service. These areas must be used only by owner-authorized and qualified personnel who are trained in the maintenance and service of the HP POD 20c 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 20c that are marked as hazardous voltage, in accordance with NFPA 70 (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 20c.

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 HP POD 20c, the customer, or a designated agent, is responsible for completing any Environmental Health and Safety evaluation of the HP POD 20c or any attached structural component purchased through HP. The customer must complete an arc flash assessment of the HP POD 20c and the associated electrical supply system for operation, maintenance, and so on.

Component safety

CAUTION: If the HP POD 20c 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 20c. Condensation causes damage to IT equipment and HP POD 20c controls.

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.

Overview 6

CAUTION: If any racks contain empty RU space, use the HP POD 20c filler panels to maintain

the efficiency of the HP POD 20c thermal system. Filler panels are available from HP in 10-pack quantities (part number AQ682A) and 100-pack quantities (part number AS993A).

Fire detection and suppression

The fire suppression system, supplied as an optional component for the HP POD 20c, is a "Manufacturer Designed" system specifically designed for this HP product, in compliance with national standards.

The HP standard suppression system includes a Novec 1230 clean agent system. However, if the customer or local Authorities require specific modifications or a replacement, HP can assist in these actions at the expense of the customer.

HP does not certify that the fire suppression system that is installed in the HP POD 20c meets all local and jurisdictional requirements. The customer is responsible for the following actions as related to the fire suppression system:

• Verifying that the POD suppression 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

• Arranging for the connection of the agent tanks, refilling of tanks, and all system testing, including

pressure tests. All general maintenance of the suppression system must be completed by an authorized technician.

Additional local requirements are not covered as part of the option price or basic installation and deployment services, unless specifically included in an executed Statement of Work.

Environmental considerations

CAUTION: To maintain accurate environmental conditions and minimize condensation inside

the HP POD 20c, do not leave the HP POD 20c doors open during operation.

Overview 7

Component identification

Structural component identification

The HP POD 20c documentation frequently refers to the specific components of the HP POD 20c as shown in the following figure and described in the following table.

Item Component Description

1 2

3 4 5

Heat exchanger access hatches Enables access to the overhead heat exchangers Emergency egress door Provides access to the POD in the event of an

emergency Personnel access door Provides access to the POD Facility chilled water return Facilitates the return of chilled water to the POD Facility chilled water supply Facilitates the supply of chilled water to the POD

Parts and part number identification

Review the contents of the HP POD 20c to identify the following for each component:

Component identification 8

• Model number—The model number is located adjacent to the door to the control panel inside the cold

aisle of the HP POD 20c, as shown in the following figure.

• CSC Safety Approval placard—Each HP POD 20c has a CSC Safety Approval placard that includes the

model number, serial number, and proof load. The CSC Safety Approval placard is located on the cargo end of the HP POD 20c, as shown in the following figure.

Life safety component identification

Internal life safety components

Component identification 9

End view shown

Fire alarm manual button

Enables manual initiation of the fire system, which includes

Item Component Description

1 2 3

4 5 6

*This is an optional component that might not be included.

Fire strobe light Indicates a fire alarm condition within the HP POD 20c Fire horn Indicates a fire alarm condition within the HP POD 20c EPO strobe Amber—An EPO event occurred and the HP POD 20c shut

down ECS power switch Turns the main power to the 24V ECS system off and on Main light switch Turns power to the HP POD 20c lights off and on Fire alarm manual button Enables manual initiation of the fire system, which includes

activating the interior and exterior fire strobe lights and the

optional fire suppression system Fire suppression abort button* Aborts the fire suppression system. A fire suppression abort

button is located next to each personnel door.

activating the interior and exterior fire strobe lights and the

optional fire suppression system Fire suppression abort button* Aborts the fire suppression system. A fire suppression abort

button is located next to each personnel door.

Internal emergency status indicators The HP POD 20c has one fire strobe light that indicates a fire alarm condition.

Component identification 10

End view shown

External life safety components Side view shown

Item Component Description

1 2 3

Fire strobe light Indicates a fire alarm condition within the HP POD 20c Fire horn Indicates a fire alarm condition within the HP POD 20c Optional EPO button Manually triggers an EPO shutdown within the HP POD 20c

Component identification 11

Electrical power component identification

•

Front view shown

Item Component Description

Demarcation box

Customer communication connection point for the following

components:

ECS Access control Phone

2 3

Fire box 480/415 transformer

cabinet

The demarcation box and the fire box are communication data points that are provided on the POD by HP. Connecting

380-415 VAC WYE, 3-phase, 320 A

these data points is the responsibility of the customer, unless an approved Statement of Work is initiated.

This cabinet is designed for two transformers. The transformers are an optional component that might not be included.

Connection location for fire emergency and VESDAnet signals

Converts main power from 480V to 415V for POD operation

Feed A and B power for IT critical loads busways and house power

Main breaker locations

Component identification 12

Side view shown

Critical IT and transformer cabinet Front view shown

External panel labels

Component identification 13

Front view shown

Short circuit current label

States that the design of the POD can withstand the available

Item Electrical safety label Description

3 4

House panel cabinet high voltage

Transformer cabinet high voltage warning

Disconnect label Provides the order for disconnecting the electrical panels

Arc flash warning Provides a reminder to users of the danger of arc flash and

Grounding label Indicates the location of the grounding electrode connection

Provides a reminder to users there are high voltage electrical components inside the cabinet

Provides a reminder to users there are high voltage transformers inside the cabinet

fault current and describes the electrical system

required PPE

point

Side view shown

Component identification 14

•

Item Electrical safety label Description

Main power cabinet high voltage

Do not enter label Provides a warning to users not to enter while a fire is

Power disconnect label States that power should be disconnected before maintenance

Short circuit current label States that the design of the POD can withstand the available

Arc flash warning Provides a reminder to users of the danger of arc flash and

Provides a reminder to users there are high voltage electrical components inside the cabinet

extinguishing

is performed

fault current and describes the electrical system

required PPE

Internal panel labels Front view shown

Item Electrical safety label Description

1 2

Power feeders caution label Cautions users about phase rotation for all power feeders Wire color code Lists the 380-415 Y/200-240 V color codes:

Brown—Phase A/L1 Black—Phase B/L2 Grey—Phase 3/L3 Blue—Neutral Green and yellow—Equipment ground

Panel schedule/circuit breaker table/fuse list

Lists the layout and designation for all circuit breakers and lists all fuse types and sizes

Component identification 15

Side view shown

•

1 2

Power feeders caution label Cautions users about phase rotation for all power feeders Wire color code Lists the 380-415 Y/200-240 V color codes:

Brown—Phase A/L1 Black—Phase B/L2 Grey—Phase 3/L3 Blue—Neutral Green and yellow—Equipment ground

Panel schedule/circuit breaker table/fuse list

Lists the layout and designation for all circuit breakers and lists all fuse types and sizes

Control cabinet component identification

Component identification 16

•

Includes a battery backup system that provides backup power

Item Component Description

VESDA air sampling smoke detection unit Fire alarm and suppression release control panel

ECS relays and ECS modules Relays for the ECS control, ECS communications, I/O connections,

EPO controller board and house panel fuses

Dual power supplies with battery backup

HP POD 20c racks

The HP POD 20c contains a total of ten IT racks.

CAUTION: If any racks contain empty RU space, use the HP POD 20c filler panels to maintain

the efficiency of the HP POD 20c thermal system. Filler panels are available from HP in 10-pack

For more information about racks and network cabling, see the HP Performance Optimized Datacenter Networking Guide.

quantities (part number AQ682A) and 100-pack quantities (part number AS993A).

An early warning, laser scan smoke detection unit

Controls all fire systems within the HP POD 20c, including the

smoke detection system, fire suppression system, fire pulls, and so on

to the fire system during a utility power loss

and terminal block connections Connections for the EPO system and fuses for other house panel

components Provides 24 V DC power to the PLC, LED lighting, and ECS systems

Component identification 17

Life safety systems

Life safety overview

The HP POD 20c has multiple life safety systems that work together to protect the HP POD 20c equipment and personnel. The following life safety systems are available on the HP POD 20c:

• EPO system (on page 18)

• VESDA air sampling smoke detection system (on page 21)

• (Optional) fire protection system (on page 21)

• Emergency egress (on page 24)

• ECS connection to customer emergency systems

EPO system

If the HP POD 20c must be shut down during an emergency, the EPO system automatically shuts off all power to the HP POD 20c and activates the EPO indicator on the ECS panel door and the EPO strobe on the POD interior.

To ensure 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 20c EPO system.

The EPO system can be activated two ways:

• Excessive high temperature in the hot aisle—The HP POD 20c includes two EPO temperature sensors.

If both sensors reach 60°C (140°F), an EPO shutdown is triggered automatically. Both sensors are located in zone 2.

• Manual initiation—To manually trigger an EPO shutdown, press either of the EPO buttons. One EPO

button is located on the POD interior near the main exit, and an optional second EPO button is located on the POD exterior.

Life safety systems 18

For the location of EPO buttons, see "Life safety component identification (on page 9)."

The EPO system must be reset before you can power up and restart the HP POD 20c. To reset the EPO system:

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

2. Press the white EPO Reset button.

If you triggered the EPO system manually, you must reset the EPO button that you pressed to the Active position.

ECS touchscreen and EPO indicators

The ECS touchscreen and EPO indicators are located on the door to the control panel. The touchscreen enables you to easily configure the environmental parameters, access data, and monitor

environmental, life safety, and access control conditions within the HP POD 20c. The EPO indicators provide EPO status. The EPO key control and EPO reset button enable you to adjust the

EPO system mode.

Item Component Indicator Color Description

Source A available indicator White Indicates the EPO power status for main

Source A wrong rotation indicator Red Indicates the Source A power phase

Source B wrong rotation indicator Red Indicates the Source B power phase

Source B available indicator White Indicates the EPO power status for main

EPO shutdown indicator Red Indicates an EPO shutdown or alarm

EPO armed indicator White Indicates that the EPO system is armed and

EPO reset button Blue Resets the EPO system when pressed

power feed A

rotation is incorrect

power feed B

situation

operational

Life safety systems 19

Item Component Indicator Color Description

Main light switch

—

Turns power to the HP POD 20c lights off

EPO mode key control — Enables you to select the EPO mode. For

EPO shutdown button Red Initiates a manual EPO event

Light test button — Tests all the EPO LED indicators when

EPO bypass mode indicator Green Indicates that the EPO shut down

EPO test mode indicator Yellow Indicates that the EPO system is operating

ECS power switch — Turns the main power to the 24V ECS

EPO modes

The EPO system has three operating modes:

more information, see "EPO modes (on page 20)."

pressed

functionality is bypassed

in test mode or that an EPO cover is open

and on

system off and on

• Armed—The EPO system is armed and operational.

• Test—The EPO system is in test mode and does not initiate during events that normally trigger an EPO.

• Bypass—The EPO system is non-operational and does not initiate during events that normally trigger an

EPO.

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 ensure that service is not interrupted during a loss of power to the HP POD 20c:

• ECS system

• VESDA air sampling smoke detection system (on page 21)

• (Optional) fire suppression system (on page 22)

• Emergency lighting in the HP POD 20c

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

the HP POD 20c EPO system, to ensure that the UPS batteries are disconnected during an EPO event. For more information on connecting UPS devices to the EPO system, see the HP Performance Optimized Datacenter 20c Maintenance and Service Guide.

Life safety systems 20

VESDA air sampling smoke detection system

CAUTION: Excess dust within the HP POD 20c can cause the VESDA smoke detector to trigger

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

The red VESDA piping that runs throughout the HP POD 20c includes inlets for smoke sampling. The VESDA uses a high-efficiency aspirator to continuously draw in air from the HP POD 20c 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 then the VESDA system sends an alarm

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

a fire alarm.

signal indicating that a fire might exist.

a fire does exist in the HP POD 20c and sends an alarm signal and an activation signal to the fire suppression system.

IMPORTANT: The VESDA filter must be changed regularly to ensure accurate smoke detection

readings. For more information about changing the VESDA filters, see the HP Performance Optimized Datacenter 20c Maintenance and Service Guide.

(Optional) Fire protection system

Each HP POD 20c is equipped with a fire alarm panel that is integrated with the fire detection system and the optional fire suppression system.

The fire system is designed as a stand-alone system, but 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:

• Manual fire button (on page 21)

• Fire alarm indicators (on page 22)

Manual fire button

• Fire suppression system (on page 22)

The HP POD 20c includes two fire buttons. One fire button is located next to the personnel access door and the second fire button is located in the fire suppression bump out.

Manually activating a fire button does the following:

• Activates the POD fire alarm system horn and strobe lights

Life safety systems 21

• Triggers a fire alarm signal to the BMS in the fire box (on page 67) and activates a 30-second delay

agent if a manual fire button is initiated. The release of the fire suppression agent is imminent and

Any additional local requirements are not covered as part of the option price or basic installation

gives personnel 10 seconds to evacuate before agent release. The fire suppression abort buttons

before releasing the fire suppression agent

IMPORTANT: The fire suppression abort button does not delay the release of the fire suppression

all personnel should evacuate immediately.

Fire alarm indicators

Upon activation of a fire alarm within the HP POD 20c, the following alarms alert personnel:

• Strobe light—The HP POD 20c includes two fire strobe lights. One is located in the cold aisle and one

is located on the POD exterior.

• Audible horn—The HP POD 20c includes two audible horns. One is located in the cold aisle and one

is located on the POD exterior.

• Alarm within the ECS—The ECS system notifies you of a fire alarm condition with an alarm alert on the

ECS screen.

Fire suppression system

WARNING: Fire suppression agents include a pre-discharge warning and evacuating system. In

the event of a fire, all protected space must be evacuated as soon as possible.

CAUTION: The POD fire suppression system is manufacturer designed, engineered, and

installed to comply with national standards. However, HP does not certify that the installed fire suppression system meets all local jurisdictional requirements. Compliance with local codes is your responsibility, and includes specific local requirements for initial and periodic inspections, certifications, and maintenance.

and deployment services, unless specifically included in an executed Statement of Work.

IMPORTANT: The fire suppression abort buttons that are located on the ECS panel and next to

the fire suppression cylinders can be pressed to interrupt the 60-second fire suppression agent release delay of the VESDA system. Pressing either of these buttons resets the fire suppression agent release delay to 10 seconds. Pressing and holding either of the fire suppression abort buttons stops the agent release. Releasing the fire suppression abort button that is being held

do not operate if a manual fire button is activated.

The fire suppression system contains conventional fire alarm control circuits and includes features required for single or dual-hazard suppression release applications, including a low-toxicity agent. In the event of fire suppression release, the suppression tanks must be refilled by a certified technician.

Fire system operator panel

The panel is configured by the manufacturer in accordance with the local fire marshal and fire code requirements.

The operator panel includes the following:

• Alarm status LED

Life safety systems 22

• Trouble status LED

• Input status LED

• Output status LED

• Acknowledge button

• Alarm Silence button

• System Reset button

The fire system and panel are tested by the local certified fire system supplier and witnessed and certified by the local Authorities or fire marshal.

The fire system operator panel requires regular maintenance and service. For more information on the fire system operator panel component, see the Operation and Maintenance Manual for the HP Performance Optimized Datacenter 20c.

Fire suppression sequence of operations

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

Personnel can determine the status of the system by the differences of the alarm horn. The following table describes the fire suppression system status.

Fire suppression system stages

Warning Pre-discharge

Post-discharge

Beats per minute Description Personnel actions

20 An alarm condition exists Personnel may investigate 120 Countdown to fire suppression

agent has started

Steady Fire suppression agent is released Personnel should not enter,

Personnel should evacuate

contact local Authorities

The fire system operator panel indicates which initiation sequence has begun with indicator lights and a panel alarm. These signals are also available to the site BMS system, if connected.

After the fire suppression system is activated by a VESDA signal or a manual fire button, a 60-second countdown begins before the fire suppression agent is released to the HP POD 20c interior through the fire suppression system piping.

VESDA initiation The VESDA fire suppression system signal has two levels that the system cycles through when smoke is

detected.

• Level 1—Indicates that the potential for a fire is present. The strobes are illuminated and the horns are

in the Warning stage. A fire has not yet been detected and personnel may investigate to determine if there is a potential for a fire or if a false indication has occurred.

• Level 2—Indicates that fire does exist. VESDA Level 1 has already have been reached, the strobes

illuminate, and the horn progresses to the Pre-discharge stage. A 60-second countdown to fire suppression agent release begins and personnel should evacuate immediately.

Press the fire suppression abort button to interrupt the fire suppression release countdown. Pressing the abort button resets the countdown to 10 seconds, regardless of the amount of time elapsed from the original 60-second countdown. The abort button can be pressed multiple times to reset the fire suppression release

Life safety systems 23

agent countdown to 10 seconds. The fire suppression agent is released when the countdown is exhausted and the horn progresses to the Post-discharge stage.

Personnel can press and hold the fire suppression abort button to stop the original 60-second initiation sequence. When the abort button is released, the system countdown resets to 10 seconds. The fire suppression agent release begins when the 10-second countdown is over and the horn progresses to the Post-discharge stage.

Manual initiation Manual initiation causes the fire strobe lights to illuminate, the horn goes to the Pre-discharge stage, and a

30-second countdown until the fire suppression agent release begins. The agent release is certain at this time and cannot be aborted. After the fire suppression agent is released, the system goes to the Post-discharge stage.

The fire suppression abort button is inactive if a manual fire pull was activated and the release of the fire suppression agent is imminent. All personnel should immediately evacuate.

Emergency egress

The HP POD 20c includes the following features for life safety egress on all access doors:

• Panic bar

• Door strikes

o Standard hardware—Door strikes o Optional hardware—Electric door strikes

Each personnel door includes a standard panic bar to ensure safe exit. The optional egress hardware included in the HP POD 20c (including electric panic bars, 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

Site electrical system

To ensure a complete and safe integration of the HP POD solution 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 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

requirements when opening or working inside areas of the HP POD 20c that are marked as

Grounding

The HP POD 20c must be properly earthed to ensure a common return path for electric current, limit the build-up of static electricity, and absorb an unlimited amount of current without changing its potential. To properly ground the HP POD 20c 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.

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

WARNING: To avoid the risk of personal injury or electric shock, the HP POD 20c must be

properly earthed (grounded) in accordance with NFPA 70 (NA) and IEC (EMEA and APJ).

Power, electrical, and controls 25

A certified electrician must test and verify that the HP POD 20c is properly grounded.

Lightning protection

The HP POD 20c structural and internal components are bonded together. A common Grounding Electrode Conductor Connection point is provided. Proper bonding and grounding of the HP POD 20c minimizes the effects of a lightning strike. A surge protection device is provided on the HP POD 20c input connection to protect the HP POD 20c electrical system from voltage transients. If your site is in an area that is subject to frequent lightning strikes, the HP POD 20c must be protected in accordance with the applicable IEC regulations. HP recommends that you contact a certified lightning protection consultant.

Power, electrical, and controls 26

Capacities

•

A licensed electrician must connect the power according to all local and national

HP POD 20c capacity limitations

The capacity limitations for the HP POD 20c are separated into two categories: electrical power and mechanical cooling capacities. Both of these categories are interdependent and must be considered in conjunction with the overall customer requirements.

Electrical and mechanical cooling capacities

Feature Specification

Critical IT electrical connections

Critical IT power capacity

Mechanical cooling electrical connections

Mechanical cooling capacity

2 x 320 A feeders at 380-415 VAC WYE, 3-Phase, 4-wire, with equipment grounding conductors 5.1 x

10.2 cm (2 x 4 in) conduit fittings per feeder provided

Non-redundant—263-288 kW 2N Redundant—132-144 kW

Not applicable Power for the cooling system fans comes from the critical IT power feeds.

Non-redundant—300 kW N+1 Redundant—250 kW

Power feeders

IMPORTANT:

The HP POD 20c has two power feeder couplings that provide the entrance for power to the POD. The power feeders route into the top of each electrical panel on the end of the HP POD 20c.

electrical codes, and must comply with manufacturer specifications.

Power, electrical, and controls 27

Front view shown

Power feeders are sized in accordance with IEC regulations. Maintain IP44 protection levels when installing power.

Electrical panels

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 20c that are marked as

For the external electrical power component locations, see "Electrical power component identification (on page 12)."

Arc flash safety

The customer must complete an arc flash assessment of the HP POD 20c and the associated electrical supply system for operation, maintenance, and so on.

Power distribution: electrical busway system

The rack power distribution system for the HP POD 20c is protected by electrical circuit breakers located on the end of the HP POD 20c.

hazardous voltage, in accordance with IEC.

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 20c.

Power, electrical, and controls 28

Front view shown

•

Feature Specification

Number of busways Frequency Amps (per busway) Voltage (per busway) Grounding Busway conductors

Panel schedules

The panel schedule for each electrical panel is permanently affixed to the inside cabinet door of each electrical panel.

Wire color code

IMPORTANT: The use of UL-approved colored tape over another color of wire is only acceptable

220-240 V wiring system—Power required for the transformer in control cabinets and convenience outlet Wire color Description

on wire sizes #2 and larger.

2 50-60 Hz 200 A 380-415 V Copper 3-phase + neutral + equipment ground

Brown

White Green and yellow

Single-phase current carrying conductor

Blue

Equipment grounding conductor Bonding conductor Earth ground

380-415 V wiring system—Critical IT power feeds and main power feeds

Power, electrical, and controls 29

A Phase

•

Wire color Label Description

Brown

Black Grey Blue Green and yellow

L2 B Phase L3 C Phase N Neutral PE

Electrical busways

The electrical busway is a modular, overhead electrical distribution system that supplies power to the HP POD 20c IT loads. The HP POD 20c has a total of two busways, and each bus can support 200 A.

Top view shown

Equipment grounding conductor Bonding conductor Earth ground

The HP POD 20c electrical busways can be configured for non-redundant power or redundant power. The HP POD 20c can be installed as a single source 1N load by providing all required feeders from one common power source and from common switchboards and transformers. A 2N redundancy installation is configured by feeding the parallel power paths from independent power sources, switchboards, and transformers.

Power, electrical, and controls 30

• Non-redundant power installation (1N load)—Both busways are powered from the same power feed.

• Redundant power installation (2N load)—Each busway is powered from parallel power paths from

independent power feeds.

Drop boxes

The internal electrical busways provide a location to connect each of the drop boxes, which then power the PDUs. Stagger the drop boxes on the electrical busways by connecting one drop box to busway #1 and connecting the next drop box to busway #2. A staggered configuration enables load balancing with the rack equipment and is necessary to ensure redundancy.

Power, electrical, and controls 31

Side view shown

Disabling power

• To disable power to a single PDU, open the drop box breaker that powers the PDU, and then disconnect

the PDU from the drop box.

• To disable power to a single rack, open the drop box breakers that power each of the PDUs installed

in that rack.

• To disable power to a single busway, open the appropriate breaker for that busway on the

corresponding electrical busway panel on the HP POD 20c exterior.

• To disable power to all racks, open the breaker for each busway on the corresponding electrical panel

on the HP POD 20c exterior.

Power configurations

IMPORTANT: Different PDUs can alter the average power capacity per rack.

Configuration Number of 3-phase

PDUs per HP POD 20c

Non-redundant Redundant

*The HP POD 20c is electrically limited to N = 288 kW / 2N = 144 kW.

20 10 28.8 288 kW* 20 10 14.4 144 kW*

Number of drop boxes per HP POD 20c

Average power capacity per rack

Total HP POD 20c power capacity

Rack power

Power is provided to each rack by PDUs and drop boxes. The PDUs are powered by the drop boxes attached to each electrical busway. For more information about electrical busway drop boxes, see the HP Performance Optimized Datacenter 20c Maintenance and Service Guide.

Power, electrical, and controls 32

200-240 VAC

20 (two per rack)

Feature Specification

Rack type Max number of racks Max U space per rack Max U space per HP POD 20c Server capacity Average capacity per rack Peak capacity per rack Voltage to rack Rack configuration

Total number of PDU's Max power per PDU Max load (Chilled POD cooling mode)* Airflow per rack (Chiller POD cooling

mode)

Dependent on configuration

HP POD rack 10 50U 500U 288 kW power capacity

28.8 kW 69 kW

Redundant/Non-redundant capabilities

30 A = 17 kW; 60 A = 34 kW 288 kW 1,700 CFM

HP POD 20c lighting

The HP POD 20c includes six LED lights. Three lights are located in the cold aisle and three lights are located in the hot aisle.

The main light switch is located on the ECS control panel door. For more information on the light switch location, see "Life safety component identification (on page 9)."

Two of the six lights are connected to battery backup power, keeping the interior of the HP POD 20c illuminated during a power outage or emergency.

For more information on lighting, see the HP Performance Optimized Datacenter 20c Maintenance and Service Guide.

Power, electrical, and controls 33

Environmental control system

Environmental control system overview

The ECS developed for the HP water-cooled POD is a stand-alone control system that requires no external connections with an external site system, BMS, public or private Internet sites, cloud, or wireless system to properly control the POD operation.

The ECS includes Modbus TCP/IP connections through which a variety of data can be retrieved. These capabilities enable you to connect, at your expense, with the stand-alone ECS system to monitor the operating parameters of the POD. It is your responsibility (or your representative's or agent's responsibility) to integrate this communication capability into any existing BMS or monitoring system.

CAUTION: To ensure that alarm conditions can be identified and resolved, HP recommends that

you remotely monitor all alarm conditions. Failure to monitor the alarm conditions can cause delays in appropriate action during an alarm condition.

Using the ECS

HP recommends connecting the HP POD 20c to your facility BMS and establishing communication through the Ethernet cable connected to the external communications box. For more information, see "Configuring the ECS (on page 39)."

The HP POD 20c ECS is a Windows-based system with the following features:

• Intel Core Duo processor

• 15-inch touchscreen

• 512 MB RAM

• 80 GB hard drive

• 24 V DC power supply

• One serial port

• Four USB ports

• 1x10/100 BASE-T and 1x10/100/1000 BASE-T Ethernet connectors

The standard ECS protocol, Modbus TCP/IP, is a data communication protocol for building automation and control networks. Connecting across different protocols might require additional engineering labor and coordination between your in-house control manufacturer and HP. It is your responsibility to make the connection between the HP POD 20c and a BMS system.

The ECS provides the following:

• A supported communication interface that can monitor and control certain HP POD 20c components

remotely

• Immediate notification of all supported alarm messages

Environmental control system 34

By connecting your HP POD 20c to a BMS system, you can monitor the various parameters and alarms. For more information, see "Navigating the ECS interface (on page 43)." The complete list of parameters and alarms that can be monitored will be discussed with your facilities personnel.

IMPORTANT: If your site does not have a BMS, HP POD 20c ECS data can be sent to and

viewed from a set IP address. Communication occurs through an Ethernet cable that is connected to the demarcation box (on page 66).

Sensors

The HP POD 20c has several temperature sensors that monitor the environmental factors and communicate

Humidity sensors

data back to the ECS.

Two humidity sensors monitor humidity in the cold aisle and report data to the ECS.

Pressure sensors

Six Beckhoff pressure sensors located in the control cabinet measure the differential pressure between the hot aisle and the cold aisle, as well as the air filters. These pressure sensors monitor the pressure at nine sampling locations throughout the HP POD 20c and report output data to the ECS. The ECS uses the calculated aisle differential pressures to control fan speed and uses the zone filter differential pressure to indicate when filters need to be replaced.

Environmental control system 35

Top view shown

Temperature sensors

The values from the temperature sensors are averaged, and this value determines the appropriate temperature for each aisle of the HP POD 20c.

Cold aisle temperature sensors Three temperature sensor probes are located in the cold aisle of the HP POD 20c. These temperature sensors

monitor the temperature in various locations throughout the cold aisle and report data to the ECS. Top view shown

Hot aisle temperature sensors Three temperature sensor probes are located in the hot aisle of the HP POD 20c. These temperature sensors

monitor the temperature in various locations throughout the hot aisle and report data to the ECS.

Environmental control system 36

Top view shown

Heat exchanger temperature sensors There are two contact temperature sensors per heat exchanger. One temperature sensor is located on the

inlet supply piping and one temperature sensor is located on the outlet return piping. These sensors measure water temperature and report data to the ECS.

Top view shown

Environmental control system 37

Facility chilled water sensors

Five sensors are located on the facility chilled water supply and return pipes. These sensors report data to the ECS.

Item Component Description

1 2 3 4 5

Return water flow sensor Detects the water flow rate for the chilled water return Supply water pressure sensor Detects the water pressure for the chilled water supply Return water pressure sensor Detects the water pressure for the chilled water return Supply water temperature sensor Return water temperature sensor Detects the water temperature for the chilled water return

Detects the water temperature for the chilled water supply

Facility connections to ECS

You can connect your facility to the ECS using the RJ45 in the demarcation box (on page 66) or cables that are hard-wired through the connection portals on the cargo end of the HP POD 20c. The system uses Modbus

Connecting to the ECS

TCP/IP for communication.

To connect the network to the ECS control panel, route an Ethernet cable to the appropriate RJ45 connector inside the HP POD 20c demarcation box (on page 66).

Environmental control system 38

Front view shown

Managing the ECS from the HP POD 20c

The ECS interface is viewed directly from the ECS screen on the control cabinet door in the cold aisle. For more information, see "ECS touchscreen and EPO indicators (on page 19)."

To access the ECS using a host computer, connect an Ethernet cable between the host computer and the designated ECS jack on the back of the door inside of the control cabinet.

Configuring the ECS

1. Connect a host computer to the ECS. For more information, see "Managing the ECS from the HP POD

20c (on page 39)."

2. Configure your computer network groups:

Environmental control system 39

Select Start>Control Panel>Network Connections.

b. Double-click Local Area Connection. c. Select Internet Protocol (TCP/IP). d. Click Properties.

e. Select Use the following IP address.

Environmental control system 40

Enter the new IP address. Be sure to specify an IP address in the same network group as the ECS controller. By default, the ECS controller uses 192.168.20.1. The IP address for your computer can include any number in the group from 2 to 254.

g. Click OK.

3. Click OK to save changes and close the TCP/IP Properties screen.

4. Click OK to close the Local Area Connections Properties screen.

Logging in remotely to the ECS

Before you can log in remotely, you must do the following:

• Add the PLC to a network.

• Obtain a username and password.

• Obtain the static IP address of the PLC. For more information, see "Locating the ECS IP addresses (on

page 42)."

Use the remote desktop application to log in to the ECS remotely:

1. On the remote computer, select Start> All Programs> TightVNC> TightVNC Viewer.

The TightVNC window appears.

Environmental control system 41

The ECS has three NIC addresses: 10.10.10.1, 10.10.10.2, and an IP address

In the TightVNC Server field, enter the IP address for the PLC.

3. Click Connect.

4. In the User name field, enter the user name.

IMPORTANT: When logging in to the Remote Desktop, the default user name is

Administrator and the default password is HPINVENT.

Locating the ECS IP addresses

5. Click OK.

IMPORTANT:

that is set up by the customer for external communication.

The PLC must be connected to locate the IP address for each NIC. For more information, see "Managing the ECS from the HP POD 20c (on page 39)."

To locate the ECS IP address:

1. Select Start>Run.

2. Enter ipconfig.

The IP address appears.

-or-

1. Select Start>Network and Sharing Center.

2. Right-click Local Area Network.

3. Click the Support tab.

The IP address appears.

Environmental control system 42

Password protection

The ECS has two levels of access control:

• Customer

• Service

The following screens are available using the customer-level password:

• Overview screen ("Status Overview screen" on page 47)

• Status Overview screen (on page 47)

• Basic System Configuration screen (on page 47)

CAUTION: Making changes to the ECS in the service-level area can cause the cooling system

components to fail. Only allow authorized, qualified, and trained personnel to change

The following screens require the service-level password:

• Advanced System Configuration screen (on page 52)

configuration settings in the service-level area of the ECS.

• Controller Settings screen (on page 55)

Navigating the ECS interface

The ECS interface provides information for several environmental and access control conditions that can be monitored and configured from the ECS touchscreen.

To navigate to specific screens from the Overview screen ("Status Overview screen" on page 47), select the button for the appropriate screen.

CAUTION: Making changes to the ECS in the service-level area can cause the cooling system

components to fail. Only allow authorized, qualified, and trained personnel to change configuration settings in the service-level area of the ECS.

IMPORTANT: Depending on the ECS configuration, the ECS numbers and screens might vary.

Environmental control system 43

•

Item Button Description

Zone (#) power supply status

Fan Bank Output

Enter Password

Navigates directly to the Power Details screen for the specified Zone (#)

Navigates directly to the Fan Control Detail screen for the specified Zone (#)

Enter customer level password—Navigates

directly to the Basic System Configuration screen (on page 47)

Enter service level password—Navigates

directly to the Advanced System Configuration screen (on page 52) or the Controller Settings screen (on page 55)

System status/reset

Resets existing alarm conditions and navigates directly to the System Status screen

Alarms

Logging in to the ECS touchscreen

To log in to the ECS touchscreen:

1. From the Overview screen, click Enter Password.

A keypad appears.

Environmental control system 44

•

Enter your ECS password.

3. Click OK.

Overview screen

The Overview screen appears upon activation of and displays an overview of the ECS components and the status of each component.

The Overview screen displays the following information.

Information Description

EPO system status

Indicates the status of the EPO system:

B—The EPO system is non-operational and

does not initiate during events that normally trigger an EPO.

T—The EPO system is in test mode and does

not initiate during events that normally trigger an EPO.

A—The EPO system is armed and

operational.

Average voltage, current, and power drawn on the A and B busways

Relative humidity

Indicates electrical usage

Indicates the relative humidity percentages from each of the humidity sensors

Environmental control system 45

Information Description

•

Indicates whether an access door is open or

Fan speed Hot aisle temperature System status

Indicates the fan bank speed percentage Indicates the average temperature in the hot aisle Indicates the status of the ECS system:

Green—All components within the ECS

system are operating within normal parameters, and there are no active ECS alarms.

Red—One or more of the ECS components is

indicating an alarm condition.

Manual mode indicators for fans and dampers

Door access indicators

Average cooling system performance data

Differential pressure values

Indicates if the fans and dampers are running in manual mode

closed Indicates cooling system sensor averages

Indicates the differential pressure values from each of the differential pressure zones between the hot aisle and the cold aisle

The ECS component icon colors indicate the component status:

• Green—No alarm conditions exist and the component is operating within normal parameters.

• Red—An alarm condition for that component exists.

• Bold numbering on a yellow background—An instrument reading is outside of the alarm limits.

For more information about alarm conditions, see "ECS alarms (on page 57)."

Environmental control system 46

Status Overview screen

The Status Overview screen displays the status of all system component alarms. For more information about the alarms, see "ECS alarms (on page 57)."

The ECS component icon colors indicate the component status:

• Green—No alarm conditions exist and the component is operating within normal parameters.

• Red—An alarm condition for that component exists or the component failed.

Basic System Configuration screen

IMPORTANT: The ECS parameters must only be set by qualified service personnel.

Environmental control system 47

The Basic System Configuration screen displays the basic alarm parameters, humidifier control, and fan controls. The configured parameters are only used to trigger an ECS alarm. The parameters listed on this screen do not configure the cooling system.

You can select and configure the following parameters:

• Cold aisle temperature alarm

• Hot aisle temperature alarm

• Humidity alarm

• Differential pressure alarm

• Differential pressure filter alarm

• Chilled water supply pressure

• Chilled water supply temperature

• Chilled water return temperature

• Chilled water return pressure

You must select Save to store the parameter changes in the system configuration file. If you do not save your changes, the old parameters stored in the configuration file reload when the system starts.

Configuring the chilled water supply temperature alarm parameters

The current temperature parameters appear on the related buttons.

Environmental control system 48

To configure the chilled water supply low temperature alarm parameters:

1. Select Chilled Water Supply Low Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the chilled water supply high temperature alarm parameters:

1. Select Chilled Water Supply High Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Configuring the chilled water return temperature alarm parameters

The current temperature parameters appear on the related buttons. To configure the chilled water return low temperature alarm parameters:

1. Select the Chilled Water Return Low Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the chilled water return high temperature alarm parameters:

1. Select the Chilled Water Return High Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Configuring the chilled water supply pressure alarm parameters

The current differential pressure parameters appear on the related buttons. To configure the chilled water supply pressure low alarm parameters:

1. Select Chilled Water Supply Pressure Low Alarm.

A keypad appears.

2. Enter a differential pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the chilled water supply pressure high alarm parameters:

1. Select Chilled Water Supply Pressure High Alarm.

A keypad appears.

2. Enter a differential pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Environmental control system 49

Configuring the chilled water supply pressure alarm parameters

The current chilled water return pressure alarm parameters appear on the related buttons. To configure the chilled water return pressure low alarm parameters:

1. Select Chilled Water Return Pressure Low Alarm.

A keypad appears.

2. Enter a chilled water return pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the chilled water return pressure high alarm parameters:

1. Select Chilled Water Return Pressure High Alarm.

A keypad appears.

2. Enter a chilled water return pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Configuring the humidity alarm parameters

The current relative humidity parameters appear on the related buttons. To configure the low humidity parameters:

1. Select the Humidity Low Alarm.

A keypad appears.

2. Enter a humidity alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the high humidity parameters:

1. Select the Humidity High Alarm.

A keypad appears.

2. Enter a humidity alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Configuring the cold aisle temperature alarm parameters

The current temperature parameters appear on the related buttons. To configure the cold aisle low temperature alarm parameters:

1. Select Cold Aisle Low Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the cold aisle high temperature alarm parameters:

1. Select Cold Aisle High Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Environmental control system 50

Configuring the hot aisle temperature alarm parameters

The current temperature parameters appear on the related buttons. To configure the hot aisle low temperature alarm parameters:

1. Select Hot Aisle Low Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the hot aisle high temperature alarm parameters:

1. Select Hot Aisle High Alarm Temperature.

A keypad appears.

2. Enter a temperature alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Configuring the differential pressure alarm parameters

The current differential pressure parameters appear on the related buttons. To configure the low differential pressure parameters:

1. Select Difference Pressure Low Alarm.

A keypad appears.

2. Enter a differential pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the high differential pressure parameters:

1. Select Difference Pressure High Alarm.

A keypad appears.

2. Enter a differential pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Configuring the differential pressure alarm parameters

The current differential pressure filter parameters appear on the related buttons. To configure the low differential pressure filter parameters:

1. Select Differential Pressure Filter Low Alarm.

A keypad appears.

2. Enter a differential pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

To configure the high differential pressure filter parameters:

1. Select Differential Pressure Filter High Alarm.

A keypad appears.

2. Enter a differential pressure alarm parameter.

3. Select Save to store the new parameters in the system configuration file.

Environmental control system 51

Setting the humidifier control

HP recommends leaving the fans in AUTO mode during normal operation. To set the humidifier control:

1. Select Auto/Manual.

2. Select Save to store the new parameters in the system configuration file.

To configure the humidifier setpoint percentage:

1. Select Humidifier Setpoint (%).

A keypad appears.

2. Select Save to store the new parameters in the system configuration file.

Setting the fan controls for each fan control zone

The current fan speed appears on each fan control zone. HP recommends leaving the fans in AUTO mode during normal operation. To configure the fan speed:

1. Select the Auto/Manual in the fan control zone you want to change.

2. If you are setting the fan to Manual mode, select the fan speed (0-4) by pressing the corresponding

number.

3. Select Save to store the new parameters in the system configuration file.

Advanced System Configuration screen

You can only access this screen after you have entered a service-level password.

Environmental control system 52

The Advanced System Configuration screen displays fan current setpoints, calibration options, and other details about the HP POD 20c.

Perform the following tasks on this screen:

• Calibrate the flowmeter.

• Calibrate the chilled water and differential pressure sensors.

• View the power configuration.

• Set the logging configuration.

• Configure the HP POD 20c serial number.

• Configure the switchboard serial number.

Setting the start-up alarm reset delay

This option gives the POD time (in seconds) during a start-up to achieve at least minimum operating parameters prior to registering an alarm condition.

To set the amount of time prior to registering an alarm condition:

1. Select Reset alarms after startup time (sec).

A keypad appears.

2. Enter the time in seconds you want the alarms to reset after startup.

Environmental control system 53

Select Save to store the new parameters in the system configuration file.

Calibrating the flowmeter

This option enables flow rate calibration based on the value of a calibrated flow meter. To calibrate the flowmeter:

1. Power down the HP POD 20c. For more information, see "Power down procedure (on page 73)."

2. Select Flowmeter Calibration Factor.

A keypad appears

3. Enter the calibration factor.

4. Select OK.

5. Select Save to store the new parameters in the system configuration file.

Calibrating the differential pressure sensors

This option is available only when all fans and the IT load are powered off and there is no air flowing inside the HP POD 20c.

To calibrate the chilled water pressure sensors:

1. Power down the POD. For more information, see "Power down procedure (on page 73)."

2. Set the fan speed for each fan control zone to Manual mode and 0% fan speed. For more information,

see "Setting the fan controls for each fan control zone (on page 52)."

3. Open the doors for five minutes to equalize the pressure between the hot and cold aisles.

4. Select Calibrate Differential Pressure Sensors.

5. Select Save.

6. Set the fan speeds to Auto mode.

Setting the logging configuration

To log the power configuration information:

1. Select Logging On/Off.

2. Select Save to store the new parameters in the system configuration file.

To set the log interval:

1. Select Log interval (sec).

A keypad appears.

2. Select Save to store the new parameters in the system configuration file.

To set the amount of time to keep power configuration log files:

1. Select Keep Log Files For (Months).

A keypad appears.

2. Select Save to store the new parameters in the system configuration file.

Environmental control system 54

Setting the switchboard serial number

To identify the switchboard connected to the HP POD 20c, set the switchboard serial number in the ECS:

1. Select Switchboard S/N.

A keypad appears.

2. Enter the switchboard serial number.

3. Select Save to store the new parameters in the system configuration file.

Setting the HP POD 20c serial number

If multiple HP POD 20c units are connected to the same facility BMS, enter each HP POD 20c serial number to monitor and display each HP POD 20c ECS independently through the facility BMS.

To set the HP POD 20c serial number in the ECS:

1. Select POD S/N.

A keypad appears.

2. Enter the HP POD 20c serial number. For more information, see "Parts and part number identification

(on page 8)."

3. Select Save to store the new parameters in the system configuration file.

Loading default settings

This option enables you to revert the ECS system back to the factory settings.

CAUTION: Pressing this button causes all customized ECS settings to be lost.

To load the default settings:

1. Select Load Default Settings.

2. Select OK.

Controller Settings screen

You can only access this screen after you have entered a service-level password.

Environmental control system 55

The Controller Settings screen displays the control setpoints for each major system component.

You can set the following configuration options:

• PI settings temperature

• PI settings pressure

Item Description

Temperature setpoint (hot aisle)

Pressure setpoint PI parameter P

PI parameter I

PI integration time

Sets the temperature setpoint for the hot aisle

Sets the pressure setpoint Proportion gains influence the rate of change in the position of the flow control

valve or the fan speed in order to reach the pre-determined setpoints Integral gains influence the rate of change in the position of the flow control valve

or the fan speed in order to reach the pre-determined setpoints. Used by the low pass filter to even the measurement values out

Environmental control system 56

I/O Overview screen

The I/O Overview screen displays the status of inputs and outputs of all major system component alarms. For more information about the alarms, see "ECS alarms (on page 57)."

The ECS component icon colors indicate the component status:

• Green—No alarm conditions exist and the component is operating within normal parameters.

• Red—An alarm condition for that component exists or the component failed.

ECS alarms

The alarms pertaining to the health of the HP POD 20c and its components are relayed through the ECS.

Alarm Meaning Solution

Fan failure

Sensor failure

One of the fans is not working. See the HP Performance Optimized Datacenter

20c Maintenance and Service Guide or contact HP service if you are still within your service contract.

One of the sensors is not working.

See the HP Performance Optimized Datacenter 20c Maintenance and Service Guide or contact HP service if you are still within your service contract.

Environmental control system 57

The return air filters are full.

Replace the return air filters. For more

Alarm Meaning Solution

Leak detection

The drain pan sensor detects water in the pan.

Change filter

High temperature

The cold aisle temperature has surpassed the setpoint temperature.

Low temperature

The cold aisle temperature is too low.

EPO

The EPO system activates and the HP POD 20c shut down.

Differential pressure

The difference in pressure between the hot and cold aisles is above the setpoints.

See the HP Performance Optimized Datacenter 20c Maintenance and Service Guide or contact HP service if you are still within your service contract.

information, see the HP Performance Optimized

Datacenter 20c Maintenance and Service Guide.

1 Verify that you have water flowing into your

HP POD 20c and the fans are operating.

2 Contact HP service if you are still within your

service contract.

1 Verify that all components are operating

normally.

2 Contact HP service if you are still within your

service contract.

1 Follow the emergency procedures for your

facility.

2 After the emergency is cleared, reset the

EPO and other HP POD 20c systems.

1 Verify that the cold/hot aisle differential

pressures are within the setpoints.

2 Contact HP service if you are still within your

service contract.

Safety and access control alarms

Alarms pertaining to the safety of the HP POD 20c are (optionally) relayed through your building fire and access control dispatch.

Alarm Meaning Solution

Fire alarm*

Access control alarm (optional)

EPO

*The fire alarm is relayed to your building fire and access control dispatch only if you have connected your facility to the fire box (on page 67).

The HP POD 20c detected a fire. Activate the EPO. Follow the emergency

An access control breach occurred. Follow the emergency procedures for your

The EPO system activated and the HP POD 20c shut down.

procedures for your facility.

facility. Follow the emergency procedures for your

facility.

Environmental control system 58

Cooling system

HP POD 20c cooling system theory of operation

CAUTION: Using contaminated supply water can cause decreased cooling capacity or

disruption in service. The supply water must meet the guidelines stated in the HP Performance Optimized Datacenter 20c Site Preparation and Requirements Guide. Damage caused by

The HP POD 20c has six heat exchangers configured in three zones that maintain temperature and cool the equipment installed in the HP POD 20c. The HP POD 20c receives chilled water from your facility, cycles the water through the heat exchangers to cool the air, and then the fans circulate the cool air throughout the HP POD 20c.

A predetermined differential pressure setpoint between the hot aisle and the cold aisle is factory set. Do not alter the setpoint without consulting HP. The speed of the fan units is regulated to maintain the differential pressure between the hot aisle and the cold aisle. For more information, see "Fans (on page 62)."

The HP POD 20c chilled water flow rate is not regulated by the ECS system. Site control over chilled water flow rate is necessary to allow 454 lpm (120 gpm

For more information on the cooling system, see the HP POD 20c Maintenance and Service Guide.

contaminated supply water is not covered by the warranty.

Measurement is in US gallons per minute.

Water supply temperature

The temperature of the water supplied to the HP POD 20c must be 13ºC to 24ºC (55ºF to 75ºF). Freezing water can cause a blockage and damage to the POD.

Cooling system 59

The minimum HP server inlet temperature is 10°C (50°F). For non-HP equipment, consult the documentation

0–150 ppm

for that equipment.

Water quality requirements and specifications

The following are the water quality requirements and specifications:

• Closed-loop water must not contain any lime scale deposits or loose debris.

• The temperature of the chilled water supplied to the HP POD 20c must be 12ºC to 24ºC (55ºF to 75ºF).

CAUTION: Freezing water can cause a blockage and damage to the unit. In outside locations

that are subject to freezing temperatures, an additive such as glycol might be necessary to lower the freezing point. However, since the heat transfer potential of water with glycol is lower, the HP

Acceptable water quality specifications

POD 20c must be de-rated accordingly.

IMPORTANT: The chilled water system piping and heat exchangers must be drained completely,

and then purged using compressed air when storing or transporting at or below freezing temperatures.

IMPORTANT: Operating the chilled water system at the higher end of the acceptable range

decreases the overall thermal capacity of the POD.

Water must be maintained per the following acceptable water quality standards.

Parameter Range

pH Specific conductance at 25ºC (77ºF) Alkalinity ("M" as CaCO3) Sulfur (SO4) Chloride (Cl) Hardness (CaCO3) Calcium hardness (CaCO3) Magnesium hardness (CaCO3) Copper (Cu) Iron (Fe) Aluminum (Al) Sodium (Na) Silica (SiO2) Zinc (Zn) Manganese (Mn) Phosphate Ortho- (PO4) Bacteria Suspended solids

8.0–10 10–2500 µmhos 150–1000 ppm 0–150 ppm 0–100 ppm 0–350 ppm 0–200 ppm 0–150 ppm < 0.20 ppm < 3.0 ppm < 0.50 ppm 0–1000 ppm

< 1.0 ppm < 0.1 ppm < 3 ppm < 1000 CFU/ml < 10 ppm

If your water is out of range, consult a water quality expert. The following table describes the chilled water system specifications for the HP POD 20c.

Cooling system 60

Heat exchangers

Uses chilled facility water to cool the air in the HP POD 20c

Feature Specification

Facility input temperature to the HP POD 20c

Max design pressure HP POD 20c pressure drop HP POD 20c water flow rate Chilled water supply and return

connections *Measurement is in US gallons per minute.

12º to 24ºC (55º to 75ºF)

1,034 kPa (150 psi)

172.4 kPa (25 psi) 454 lpm (120 gpm*) Two DIN PN16 DN80 flanges

Cooling system components

Each of the three heat exchanger area access hatches are rated NEMA 3R for outdoor use. The exterior of the hatches are coated with a durable finish to protect against corrosion. The access hatches are located on the roof of the POD. The heat exchangers can be accessed from the roof of the POD by removing one of the six access hatches.

Top view shown

Item Component Description

1 2

Chilled water supply header

Chilled water return header

Provides cooled chilled water from the site chilled water system to the heat exchangers

Provides heated chilled water to the return site chilled water system

Cooling system 61

End view shown

Fans

Item Component Description

1 2

3 4 5

Heat exchanger Uses chilled facility water to cool the air in the HP POD 20c Drain pan sensor Detects excessive amounts of condensate in the drain pan and sends an alarm

signal to the ECS Drain pan Collects and directs heat exchanger condensate to the condensate drain Condensation drain Removes condensation from the drain tray to the exterior of the HP POD 20c Header drain pan Provides leak detection for the chilled water supply and the chilled water

supply return

HP POD 20c fans operate at variable speeds to maintain the following setpoints programmed in the ECS. The setpoints are maintained in the following order:

1. Differential pressure setpoint between the hot and cold aisles

2. Hot aisle temperature setpoint

The fan speed adjusts to maintain both setpoints. Do not manually adjust the fan speed.

IMPORTANT: HP recommends leaving the fans in AUTO mode during normal operation.

Cooling system 62

Depending on the IT equipment installed in your HP POD 20c, you can choose to change both default parameters to improve the overall efficiency of your system. To discuss the effects of changing these parameters for your specific HP POD 20c, contact HP ("HP contact information" on page 78).

Item Component Quantity Description

Fan tray assemblies 3 banks of 6 (18

total) fans per zone

Fan control and power

3 Provides fan speed control, status, and DC power

supply assembly

Condensation management

CAUTION: To maintain accurate environmental conditions inside the HP POD 20c, do not leave

The heat exchanger drip trays collect condensation that forms on the heat exchangers. This collected condensation drains out of the HP POD 20c through the heat exchanger condensate drains. HP recommends connecting the condensate drains on the HP POD 20c to a facility drain to prevent collection of water near the HP POD 20c.

The HP POD 20c has two 3.18 cm (1.25 in) condensate drain outlets located at both ends of the hot aisle of the HP POD 20c. The drain outlets are directly connected to the heat exchanger drip trays. The HP POD 20c main supply and return line is connected to the condensate drain line.

To avoid excessive buildup of condensation and to conserve energy, raise the cooling water temperature to above the dew point to manage condensation while maintaining the necessary cooling capacity.

the HP POD 20c doors open during operation.

Circulates cool air from the heat exchangers throughout the HP POD 20c

for the fans

Drains

WARNING: Water that drains around the HP POD 20c can cause a potential slip hazard. Use

caution where slip hazards are present.

Cooling system 63

HP recommends connecting the condensate and humidifier drains from the HP POD 20c to a facility drain to prevent collection of water near the HP POD 20c. For more information on drain connections, see the HP Performance Optimized Datacenter 20c Site Preparation and Requirements Guide.

Hot aisle drains

Heat exchanger condensate drains Side view shown Water from natural condensation forms. Condensation from the heat exchangers flows to one of the two

condensation drains located at each end of the hot aisle.

IMPORTANT: You might need to connect the HP POD 20c condensate drains directly to the local

storm or sanitary drain, depending on the local jurisdictional requirements.

Cold aisle drains

Item Component Description

Chilled water supply and return header drain

Humidifier drain Drains water from the humidifier

Drains water from the chilled water supply and return header drip pans in the event a leak develops

Cooling system 64

IMPORTANT: The humidifier drain contains concentrated impurities due to the humidification

process and is extremely hot. You might need to connect this drain and the supply head drains directly to a local storm or sanitary drain, depending on the local jurisdictional requirements.

Leak detection

The HP POD 20c includes six heat exchanger condensate sensors. Three sensors are located in the drain trays below each set of heat exchangers, and three sensors are located in the header drain pans.

There should be no water in the chilled water supply and return header drain pan, and the drain pan should always remain dry.

Some amount of condensation water can always be expected in the heat exchanger drain pans. If an excessive amount of condensation water accumulates in a drain pan, an alarm is triggered and sent through the HP POD 20c ECS, indicating a possible leak.

For more information on leak detection, see the HP Performance Optimized Datacenter 20c Maintenance and Service Guide.

Cooling system 65

IT networking and communications

Networking

Connecting the HP POD 20c to the facility network is a vital part of ensuring the functionality of the various communication systems. See the HP Performance Optimized Datacenter Networking Guide for more information.

All connections are the responsibility of the customer. For configuration and installation instructions, consult

Connection portals

with HP.

Networking and connection portals are located on the cargo end of the HP POD 20c. Each HP POD 20c has six 6.35-cm (2.5-in) portals for customer data connection. These portals are provided to allow the customer to make connections to the HP POD 20c.

End view shown

Demarcation box

The following communication connections between the customer facility and the HP POD 20c are made through the demarcation box:

• ECS communication

• Access control communication

• Telephone

IT networking and communications 66

Front view shown

You must make the connections between the facility and the HP POD 20c. For configuration and installation instructions, consult with HP.

Fire box

The communication connections between the fire system and the HP POD 20c are made through the fire box. Front view shown

You must make the connections between the facility and the HP POD 20c. For configuration and installation instructions, consult with HP.

IT networking and communications 67

Optional components

Fire protection system

The fire protection system is a HP POD 20c self-contained system, with no connection to your ECS. The fire protection system consists of 3M Novec 1230, a clean agent fire suppressant, eliminating the need for

Humidifier

additional water to be connected to the HP POD 20c in case of a fire emergency.

The humidifier option maintains the humidity in the HP POD 20c within a set range according to ASHRAE standards.

IMPORTANT: The humidifier is required if you want the POD to remain within ASHRAE

Maintaining the humidity helps to minimize static electricity within the HP POD 20c.

recommended or allowable standards.

Side view shown

Controlled access

The HP POD 20c controlled access option adds magnetic locks and 12-digit keypads to the hot and cold aisle dynamic doors. This option enables you to provide controlled access to the hot and cold aisle without the need for keys.

Optional components 68

Power up procedure

Standard HP POD 20c power up procedure

This procedure is for your reference only and assumes that the POD is fully commissioned and powered up by HP before being turned over to you.

Before beginning the power up procedures in this section, verify that the POD is not in operation and that the internal ambient temperature of the POD is greater than 10ºC (50ºF). If the internal ambient temperature of the POD is less than 10ºC (50ºF), see "Cold weather HP POD 20c power up procedure (on page 70)."

This process helps to ensure personnel safety during the electrical start up of the HP POD 20c.

WARNING: To avoid risk of personal injury or loss of life, do not open an energized POD

electrical cabinet without an energized work permit and appropriate PPE.

Power up checklist

Site electrical Verify that all site POD feeder supply breakers are open. Site mechanical Verify that the POD supply and return isolation valves are closed. POD mechanical Verify that the POD chilled water return butterfly isolation valve is open. POD electrical

• Hot aisle—Verify that all IT power drop box breakers on the power tap boxes are open.

• Cold aisle:

a. Close all breakers and fuses within the control cabinet. b. Close and latch the ECS cabinet. c. Position the EPO system (on page 18) to Armed (White) or Bypass (Green). d. Verify that all EPO activation buttons are in the reset position (not depressed). e. Position the 24V DC power switch to On.

• Main power feed cabinet:

a. Close main power feed breakers A and B. b. Verify power surge fuses are installed.

• House power and critical IT power cabinets:

a. Close all fuses in the house power and critical IT power cabinets. b. Close all non-spare breakers in the house power and critical IT power cabinets. c. Close and lock both house power and transformer cabinet doors.

Power up procedure 69

Standard power up procedure

Perform the following procedures in the exact order in which they are listed.

Site electrical

Close all POD site power feeder breakers and monitor for any effects that are not standard.

Site chilled water

1. Open the POD supply chilled water isolation valve.

2. If necessary, vent the air from the chilled water return header.

3. Open the POD return chilled water isolation valve.

4. Verify that audible flow noises are present.

ECS and EPO

Verify the following on using the ECS touchscreen and EPO indicators:

• The ECS panel is operational and displays the user interface.

• The POD lighting is operational.

• The EPO system is set to Armed (White) or Bypass (Green).

POD operation

1. On the ECS touchscreen, verify that all system components are operational (green) and no alarm

conditions exist.

2. On the ECS touchscreen, verify that all system parameters are operating normally.

3. On the ECS touchscreen, verify that the POD chilled water flow rate is established on the flow rate

indicator.

4. In the hot aisle, close the power drop box breakers for each rack and ensure that the IT equipment is

operating.

5. In the cold aisle, monitor the flow control position, chilled water flow, and POD temperatures.

6. Wait five minutes to allow the system to stabilize.

The HP POD 20c is now fully operational and the control system automatically controls the fan and the flow control valve position.

Cold weather HP POD 20c power up procedure

This procedure is for your reference only and assumes that the POD was fully commissioned and powered up by HP before being turned over to you.

Before beginning the power up procedures in this section, verify that the POD is not in operation and that the internal ambient temperature of the POD is less than 10ºC (50ºF). If the internal ambient temperature of the POD is greater than 10ºC (50ºF), see "Standard HP POD 20c power up procedure (on page 69)."

IMPORTANT: The minimum acceptable inlet temperature for IT equipment is 10ºC (50ºF).

Power up procedure 70

This process helps to ensure personnel safety during the electrical start up of the HP POD 20c.

WARNING: To avoid risk of personal injury or loss of life, do not open an energized POD

electrical cabinet without an energized work permit and appropriate PPE.

Cold weather power up checklist

Site electrical Open (verify open) all site POD feeder supply breakers. Site mechanical Verify that the POD supply and return isolation valves are closed. POD mechanical Open (verify open) POD chilled water return butterfly isolation valve. POD electrical

• Hot aisle—Verify that all IT power drop box breakers on the power tap boxes are open.

• Cold aisle:

• Main power feed cabinet:

a. Close main power feed breakers A and B. b. Verify power surge fuses are installed.

• House power and critical IT power cabinets:

Standard power up procedure

Site electrical

Perform the following procedures in the exact order in which they are listed.

Close all POD site power feeder breakers and monitor for any effects that are not standard.

ECS and EPO

Verify the following using the ECS touchscreen and EPO indicators:

• The ECS panel is operational and displays the user interface.

• POD lighting is operational.

Power up procedure 71

20ºC (68ºF) per hour. At higher elevations, the rate of change must be reduced by 1ºC (34ºF) for

• The EPO system is set to Armed (White) or Bypass (Green).

Site chilled water

1. Open the POD supply chilled water isolation valve.

2. If necessary, vent the air from the chilled water return header.

3. Open the POD return chilled water isolation valve.

4. Verify audible flow noises are present.

IMPORTANT: To allow the POD ambient temperature to be raised in a controlled manner, open

the chilled water supply and return isolation valves to enable 454.25 lpm (120 gpm temperature of 13ºC to 24ºC (55ºF to 75ºF) to flow through the heat exchangers and allow the circulation fans to bring the ambient temperature to >10ºC (50ºF).

• Portable heaters can be used to disperse supplemental heat uniformly throughout the POD.

• Electric portable heaters must be powered from an outside source.

Measurement is in US gallons per minute.

POD heating procedure

1. On the ECS touchscreen, verify that all system components are operational (green) and no alarm

conditions exist.

2. On the ECS touchscreen, verify that the POD chilled water flow rate is established on the flow rate

indicator.

) at a

3. Take manual control of the fans to the preferred speed to circulate the warm air in the POD.

4. Determine the hot aisle temperature:

o If the hot aisle temperature is at or above -25ºC (13ºF), continue to the next step. o If the hot aisle temperature is not at or above -25ºC (13ºF), continue monitoring the hot aisle

temperature until it reaches -25ºC (13ºF) and continue this warm up procedure for 60 minutes before proceeding.

5. Record the cold aisle temperature that displays on the ECS. The recorded temperature is the starting

temperature of the servers.

6. When the cold aisle temperature reaches a minimum of 10ºC (50ºF), maintain the temperature for at

least 60 minutes before proceeding.

7. Set all fans to AUTO mode.

POD operation

IMPORTANT: With non-operating servers, the temperature rate of change should not exceed

every 305 m (1,000 ft) above sea level.

CAUTION: Do not continue the start up procedures unless the fans are in AUTO mode.

1. In the hot aisle, close the power drop box breakers for each rack and ensure that the IT equipment is

operating.

2. In the cold aisle, monitor the flow control position, chilled water flow, and POD temperatures.

Power up procedure 72

Wait five minutes to allow the system to stabilize.

The HP POD 20c is now fully operational and the control system automatically controls the fans and the flow control valve position.

Power down procedure

1. Power down all IT equipment.

2. Open all POD power drop box breakers.

3. Monitor the system parameters and allow the POD to cool to an acceptable temperature. Be sure that

the cold aisle temperature does not fall below 10°C (50°F.)

4. Close the POD return chilled water isolation valve.

5. Close the POD supply chilled water isolation valve.

6. Open the POD main power feed breakers.

7. Unlock the POD house power and critical IT power cabinets.

8. Open all breakers in the POD power cabinets A and B.

9. Unlock the POD main power feed cabinet.

10. Open all breakers in the POD main power feed cabinet.

The HP POD 20c is now powered down and all breakers are ready for standard or cold weather power up.

Power up procedure 73

Specifications

•

General HP POD 20c specifications

Features Specifications

Overall dimensions

Weight1

Maximum power2

Power input voltage Power input current Maximum rack quantity Rack Units (RU) per rack Rack Units (RU) total Average capacity per rack (kW) Peak rack capacity

Voltage to rack Minimum quantity of PDUs per HP POD 20c Maximum quantity of PDUs per HP POD 20c Maximum power per PDU Network supported

The empty weight includes the HP POD 20c structure, empty racks, PDUs, and drop boxes. It does not include IT

equipment.

The maximum power depends on the exact installation and power configuration in your POD. The HP POD 20c is

electrically limited to 288 kW.

Height—3.05 m (10 ft) Length—6.10 m (20 ft) Width—2.43 m (7.97 ft)

Empty—7,711 kg (17,000 lb) Maximum fully loaded—22,680 kg (50,000 lb)

288 kW

380-415 V, 3-phase, 4-wire 2 x 320 A electrical busways 3-phase, 4-wire feeders 10 racks 50 RU 500 RU 30 kW 69 kW

200-240 VAC 10 (one per rack) 20 (two per rack) 30A = 17 kW; 60A = 34 kW

Bulk cable pass-through-fiber Bulk cable pass-through-copper External rated DEMARC box

Electrical specifications

Electrical busway system information Feature Specification

Number of busways Frequency Amps (per busway) Voltage (per busway) Grounding Busway configuration

2 50-60 Hz 200 A 380-415 VAC Wye Copper 3-phase + neutral + equipment ground

Specifications 74

Fire alarm panel connections

50U

The electrical layout of the fire alarm system is as described in the schematic drawing supplied with the HP POD 20c.

Water specifications

The following table describes the chilled water system specifications for the HP POD 20c.

Feature Specification

Facility input temperature to the HP POD 20c

Max design pressure HP POD 20c pressure drop HP POD 20c water flow rate Chilled water supply and return

connections *Measurement is in US gallons per minute.

Rack specifications

12º to 24ºC (55º to 75ºF)

1,034 kPa (150 psi)

172.4 kPa (25 psi) 454 lpm (120 gpm*) Two DIN PN16 DN80 flanges

Standard HP POD 20c racks (AT978A) Feature Specification

U height Width Depth Maximum load weight

*This specification indicates the maximum clearance for the cold aisle. Equipment cannot exceed this measurement.

54.6 cm (21.5 in) 99 cm (39 in)* 1,360.7 kg (3,000 lb)

Thermal and air flow performance

Maximum thermal and air flow performance parameters

Air temperature—Inlet to rack-mounted components

Chilled water temperature Total rack-mounted component air

flow

Heat rejection capacity

HP POD 20c specification

Dependent on IT configuration and chilled water inlet temperature

12°C to 24°C (55°F to 75°F) Variable as required to maintain hot

aisle setpoint temperature and dependent on IT configuration

300 kW

Environmental specifications

Feature Specification

Operating temperature Non-operating temperature*

-28ºC to 54ºC (-18ºF to 130ºF)

-29ºC to 54ºC (-20ºF to 130ºF)

Specifications 75

Feature Specification

•

Operating humidity

0% to 100% external 10% to 90% non-condensing internal

Non-operating humidity*

5% to 95% relative non-condensing 39ºC (102ºF) maximum wet bulb

temperature

Operating altitude Non-operating altitude

*For non-operating specifications, consider the temperature of computer and IT equipment inside the HP POD 20c.

-76.2 m to 3,048 m (-250 ft to 10,000 ft)

-76.2 m to 9,144 m (-250 ft to 30,000 ft)

Specifications 76

Maintenance

Periodic maintenance

Perform periodic inspections to ensure that the HP POD 20c continues to perform according to design parameters. During periodic inspections, pay special attention to electrical connections and wiring.

For more specific maintenance information, see the HP Performance Optimized Datacenter 20c

Sample HP POD 20c maintenance schedule

Maintenance and Service Guide.

For detailed maintenance information and schedules, consult with HP services. The following table is a sample maintenance schedule for an HP POD 20c. For more detailed maintenance

information, see the HP Performance Optimized Datacenter 20c Maintenance and Service Guide.

Component to be inspected Frequency

Electrical connections and wiring—Visual Electrical connections and wiring—Thermal scans

Condensation and drainage system (leaks)—Visual Condensation and drainage system (leaks)—Functional Busway interconnects (tightened) EPO system Third-party OEM components (fire alarm and suppression system, humidifier,

and so on)

Every 30 days Every 180 days

Every 30 days Every 90 days Every 180 days Every 180 days For more information about the

components, see the Operation

and Maintenance manual for the HP Performance Optimized Datacenter 20c.

Maintenance 77

Contacting HP

Before you contact HP

Be sure to have the following information available before you call HP:

• Active Health System log (HP ProLiant Gen8 or later products)

Download and have available an Active Health System log for 3 days before the failure was detected. For more information, see the HP iLO 4 User Guide or HP Intelligent Provisioning User Guide on the HP website (http://www.hp.com/go/ilo/docs).

• Onboard Administrator SHOW ALL report (for HP BladeSystem products only)

For more information on obtaining the Onboard Administrator SHOW ALL report, see the HP website (http://www.hp.com/go/OAlog).

• Technical support registration number (if applicable)

• Product serial number

• Product model name and number

• Product identification number

• Applicable error messages

• Add-on boards or hardware

• Third-party hardware or software

• Operating system type and revision level

HP contact information

For United States and worldwide contact information, see the Contact HP website (http://www.hp.com/go/assistance).

In the United States:

• To contact HP by phone, call 1-800-334-5144. For continuous quality improvement, calls may be

recorded or monitored.

• If you have purchased a Care Pack (service upgrade), see the Support & Drivers website

(http://www8.hp.com/us/en/support-drivers.html). If the problem cannot be resolved at the website, call 1-800-633-3600. For more information about Care Packs, see the HP website (http://pro-aq-sama.houston.hp.com/services/cache/10950-0-0-225-121.html).

Contacting HP 78

HP Performance Optimized Data Center (POD) 20cp User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Abstract

Contents

Overview

Before you begin

Operator safety

Component safety

Fire detection and suppression

Environmental considerations

Component identification

Structural component identification

Parts and part number identification

Life safety component identification

Electrical power component identification

Control cabinet component identification

HP POD 20c racks

Life safety systems

Life safety overview

EPO system

ECS touchscreen and EPO indicators

EPO modes

EPO accidental activation

Battery backup during an EPO event

VESDA air sampling smoke detection system

(Optional) Fire protection system

Manual fire button

Fire alarm indicators

Fire suppression system

Fire system operator panel

Fire suppression sequence of operations

Emergency egress

Power, electrical, and controls

Site electrical system

Power safety

Grounding

Lightning protection

Capacities

HP POD 20c capacity limitations

Electrical and mechanical cooling capacities

Power feeders

Electrical panels

Arc flash safety

Power distribution: electrical busway system

Panel schedules

Wire color code

Electrical busways

Drop boxes

Power configurations

Rack power

HP POD 20c lighting

Environmental control system

Environmental control system overview

Using the ECS

Sensors

Humidity sensors

Pressure sensors

Temperature sensors

Facility chilled water sensors

Facility connections to ECS

Connecting to the ECS

Managing the ECS from the HP POD 20c

Configuring the ECS

Logging in remotely to the ECS

Locating the ECS IP addresses

Password protection

Navigating the ECS interface

Logging in to the ECS touchscreen

Overview screen

Status Overview screen

Basic System Configuration screen

Configuring the chilled water supply temperature alarm parameters

Configuring the chilled water return temperature alarm parameters

Configuring the chilled water supply pressure alarm parameters

Configuring the chilled water supply pressure alarm parameters

Configuring the humidity alarm parameters

Configuring the cold aisle temperature alarm parameters

Configuring the hot aisle temperature alarm parameters