HP POD 20c Manual

HP Performance Optimized Datacenter 20c
Maintenance and Service Guide—China
Abstract
This guide provides maintenance and service guidance for the HP Performance Optimized Datacenter 20c (HP POD 20c).
Part Number: 732010-001
July 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.

Contents 3
Contents
Illustrated parts catalog ................................................................................................................. 5
Structural component identification .............................................................................................................. 5
Life safety component identification ............................................................................................................. 6
Electrical power component identification..................................................................................................... 7
Control cabinet component identification...................................................................................................... 9
HP POD 20c racks .................................................................................................................................. 10
Aisle clearances...................................................................................................................................... 10
Cold aisle clearance...................................................................................................................... 10
Hot aisle clearance........................................................................................................................ 11
Replaceable components for China models................................................................................................. 11
Overview................................................................................................................................... 13
Installation considerations......................................................................................................................... 13
(Optional) Fire suppression system............................................................................................................. 13
Removal and replacement procedures........................................................................................... 14
Buttons................................................................................................................................................... 14
EPO button ................................................................................................................................... 14
DIN rail components................................................................................................................................ 15
Control relay module ..................................................................................................................... 15
Differential pressure sensor ............................................................................................................. 16
Door position devices .............................................................................................................................. 18
Magnetic contacts ......................................................................................................................... 18
Electrical ................................................................................................................................................ 19
Busway drop box .......................................................................................................................... 19
Fans ...................................................................................................................................................... 22
IT cooling fan................................................................................................................................ 22
Ventilation fan............................................................................................................................... 24
Filters..................................................................................................................................................... 26
Heat exchanger air filters ............................................................................................................... 26
VESDA filter.................................................................................................................................. 27
Rittal SK 3326 ventilation fan filter................................................................................................... 28
Indicators ............................................................................................................................................... 30
ECS touchscreen and EPO indicators ............................................................................................... 30
Lights..................................................................................................................................................... 32
LED light....................................................................................................................................... 32
Sensors.................................................................................................................................................. 33
Heat exchanger condensate drain pan sensors.................................................................................. 33
Chilled water supply and return header drain pan sensors.................................................................. 34
Humidistat .................................................................................................................................... 35
Humidity sensor............................................................................................................................. 37
Chilled water system temperature sensor .......................................................................................... 39
Chilled water temperature sensor internal components........................................................................ 40
Temperature sensor (cold aisle) ....................................................................................................... 43
Temperature sensors (hot aisle)........................................................................................................ 44
Fluid system components .......................................................................................................................... 45
Chilled water supply and return header pressure sensors .................................................................... 45

Contents 4
Chilled water flow sensor ............................................................................................................... 47
Chilled water system temperature sensor .......................................................................................... 48
Chilled water temperature sensor internal components........................................................................ 49
Heat exchanger ............................................................................................................................ 51
Humidifier .................................................................................................................................... 52
Humidistat (if installed) ................................................................................................................... 56
Valves.................................................................................................................................................... 58
External chilled water isolation valve................................................................................................ 58
External pressure gauge isolation valve ............................................................................................ 59
Periodic maintenance.................................................................................................................. 61
Periodic maintenance overview................................................................................................................. 61
Qualified personnel................................................................................................................................. 61
Cooling system ....................................................................................................................................... 61
Leak detection............................................................................................................................... 62
Leak isolation................................................................................................................................ 62
Humidifier (if installed)............................................................................................................................. 63
ECS....................................................................................................................................................... 64
Electrical ................................................................................................................................................ 64
Fire alarm and suppression system ............................................................................................................ 66
HP POD 20c structure.............................................................................................................................. 66
Life safety............................................................................................................................................... 67
Access control......................................................................................................................................... 68
Third-party components ............................................................................................................................ 68
Specifications............................................................................................................................. 69
General HP POD 20c specifications .......................................................................................................... 69
Electrical specifications .................................................................................................................. 69
Water specifications ...................................................................................................................... 70
Rack specifications .................................................................................................................................. 70
Thermal and air flow performance............................................................................................................. 70
Environmental specifications ..................................................................................................................... 70
Optional features specifications................................................................................................................. 71
Contacting HP............................................................................................................................ 72
Before you contact HP.............................................................................................................................. 72
HP contact information ................................................................................................................... 72
Regulatory information ................................................................................................................ 73
HP POD 20c regulatory compliance .......................................................................................................... 73
Safety and NEC compliance ........................................................................................................... 73
Regulatory requirements for EXIT signs ....................................................................................................... 74
Safety and regulatory compliance ............................................................................................................. 75
Warranty information .............................................................................................................................. 75
HP POD 20c regulatory compliance .......................................................................................................... 75
Glossary.................................................................................................................................... 76
Documentation feedback ............................................................................................................. 78
Index......................................................................................................................................... 79

Illustrated parts catalog 5
Illustrated parts catalog
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 Heat exchanger access hatches Provides access to the overhead heat exchangers
2 Power busway access hatch Allows access to the power busway end feed boxes
3 Personnel access doors Provides access to the POD
4 Facility chilled water return Facilitates the return of chilled water to the POD
5 Facility chilled water supply Facilitates the supply of chilled water to the POD

Illustrated parts catalog 6
Life safety component identification
Item Component Description
1 Exit sign locations Indicates the location of an exit
2 EPO strobe Red—An EPO event occurred and the HP POD 20c shut down.
3 EPO button Enables manual initiation of the EPO system
4
EPO alarm
Indicates the initiation of the EPO system with an audible alarm
5 Fire strobe light Indicates a fire alarm condition within the HP POD 20c
6 Fire suppression alarm Indicates the initiation of the fire suppression system with an
audible alarm
7 Fire alarm manual pull* Enables manual initiation of the fire system, which includes
activating the interior and exterior fire strobe lights and the
optional fire suppression system
8 Fire suppression abort button* Aborts the fire suppression system. A fire suppression abort
button is located next to each personnel door.
9 EPO button Disconnects the HP POD 20c from main power, activates the
red EPO indicator on the control cabinet door, and activates
the red EPO strobe on the HP POD 20c exterior.
To restart the HP POD 20c after an EPO event, you must reset
the EPO button by turning the key and switching the button to
the Active position.
*This is an optional component that might not be included.

Illustrated parts catalog 7
Electrical power component identification
Front view shown
Item Component Description
1 Demarcation box* Customer communication connection point for the following
components:
•
ECS
•
Security
•
Phone
2 Fire box* Connection location for fire emergency and VESDAnet signals
3 380-415 VAC Y, 3-phase,
400 A
Feed A and B power for IT critical loads busways and house power
*The demarcation box and the fire box are communication data points that are provided on the POD by HP. Connecting
these data points is the responsibility of the customer, unless an approved Statement of Work is initiated.
Main breaker locations
Side view shown

Illustrated parts catalog 8
External panel labels
Front view shown
Item Electrical safety label Description
1 Danger sign Provides a reminder to users that the electrical panels must be
accessed only by authorized personnel
2 Disconnect label Provides the order for disconnecting the electrical panels
3 Caution Cautions users about isolating power from the HP POD 20c.
4 Arc flash warning Provides a reminder to users of the danger of arc flash and
required PPE
Internal panel labels
View shown
Item Electrical safety label Description
1 Input power Lists the input power information

Illustrated parts catalog 9
Item Electrical safety label Description
2 Panel schedule/circuit breaker
table Lists the layout and designation for all circuit breakers
3 Fuse type table Lists all fuse types and sizes
4 Wire color code Lists the 380-415 Y/200-240 V color codes:
•
Purple/Brown—Phase A/L1
•
Purple/Orange—Phase B/L2
•
Purple/Yellow—Phase 3/L3
•
Purple/White—Neutral
•
Green and yellow—Equipment ground
Control cabinet component identification
Item Component Description
1 VESDA air sampling smoke
detection unit An early warning laser scan smoke detection unit
2 Leak detection relays Interprets the electronic leak signals
3 Fire suppression Data connection points for the fire suppression panel and input
components
4 Fire alarm and suppression
release control panel
•
Controls all fire systems within the HP POD 20c, including the
smoke detection system, fire suppression system, fire pulls, and
so on
•
Includes a battery backup system that provides power to the
fire system during a utility power loss
5 ECS relays and ECS modules Relays for the ECS control, ECS communications, I/O connections,
and terminal block connections
6 Fan control Fan power supply controls and relays
7 EPO controller board and house
panel fuses Connections for the EPO system and fuses for other house panel components
8 Battery backup power supply Provides 24V DC power to the PLC and ECS system

Illustrated parts catalog 10
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
quantities (part number AQ682A) and 100-pack quantities (part number AS993A).
For more information about racks and network cabling, see the HP Performance Optimized Datacenter
Networking Guide.
Aisle clearances
Cold aisle clearance
The maximum protrusion of any installed IT component directly impacts the available cold aisle clearance for
removal and replacement of other IT components. Maximum component depth must follow the clear aisle
distance calculations. The following figure shows how to calculate this distance.
The maximum rack face-to-cold aisle wall distance is 39.5 inches. In the figure, Xrepresents any protrusion
into the cold aisle starting from the rack face of the installed IT component (for example, the bezel). Y
represents cold aisle clearance. The cold aisle clearance dictates the maximum depth (D) of any installed IT
component. To find the maximum cold aisle clearance, calculate 100.33 cm (39.5 in) - X = Y.
IMPORTANT: As the value for X increases, the value for Y decreases, which also decreases the
maximum depth allowed for an installed component.

Illustrated parts catalog 11
Hot aisle clearance
Hot aisle clearance is defined as the distance from the rear of the rack to the hot aisle wall. The reference
distance of 2.54 cm (16 in) must be considered when selecting IT infrastructure that will populate into the hot
aisle.
Replaceable components for China models
The replaceable components in the following table can be replaced by qualified facilities personnel.
Spare part number Description
595107-001 SPS-FILTER SCREENS FRAME w/FILTER
595108-001 SPS-MAINT KIT FILTERS-AT979A
612980-001 SPS-BUS BAR 5 POLE 3M
612981-001 SPS-END CAP
612982-001 SPS-HOUSING COUPLER
612983-001 SPS-MOUNTING STUD M10
637129-001 SPS-TSAT 60
637136-001 SPS-SENSOR PRESSURE ABS 10 BAR
641859-001
SPS-FILTER REPLACEMENT VESDA
660819-001 SPS-CABLE WD-CS-2M
The replaceable components in the following table are electrical components that must be replaced by a
certified electrician.
IMPORTANT:
A licensed electrician must connect the power according to all local and national
electrical codes, and must comply with manufacturer specifications.
Spare part number Description
660784-001 SPS-Breaker 1SDA054578R1
660786-001 SPS-Breaker Shield 1SDA054691R2

Illustrated parts catalog 12
Spare part number Description
660787-001 SPS-Breaker 1SDA054870R1
660788-001 SPS-Fuse-Switch SV 9344.000
660789-001 SPS-Switch NH00 KTF-160
660794-001 SPS-Switch 1SAM150000R1005
660796-001 SPS-Terminal Cover 1SDA051415R0001
660802-001 SPS-Relay Assembly 62.32.8.230.0040
660803-001 SPS-Relay 1SVR630884R3300
660806-001
SPS-Relay Assembly 46.61.9.0240074
718586-001 SPS-LED LIGHT CO82
718588-001 SPS-HUMIDIFIER CHF03V2001
The replaceable component in the following table must be replaced by a licensed fire safety contractor.
IMPORTANT:
These parts must be replaced by a licensed fire safety contractor according to all
local and regional fire codes, and in compliance with manufacturer specifications.
Spare part number Description
664746-001
SPS-DETECTOR SMOKE VESDA VLS 214

Overview 13
Overview
Installation considerations
CAUTION: All plumbing to and from the HP POD 20c must be completed by a licensed plumber.
All wiring in and around the HP POD 20c must be completed by a licensed electrician. Failure to
comply with these instructions can impact your warranty and/or result in equipment damage.
(Optional) Fire suppression system
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.
Any 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.
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.
IMPORTANT: The fire suppression abort button is located next to the ECS panel and can be
pressed to interrupt the 30-second fire suppression agent release delay for an additional 30
seconds. This button interrupts the countdown, but does not reset the 30-second fire suppression
agent release delay. The fire suppression agent release countdown will continue when the abort
button is released until the time is exhausted and the fire suppression agent is released.
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.

Removal and replacement procedures 14
Removal and replacement procedures
Buttons
EPO button
One EPO button is located on the POD interior near the main exit. A second EPO button is located on the
POD exterior.
Removing the EPO button
1. Grasp the bracket (1).
2. Remove the EPO button from the bracket (2).
3. Remove the contact modules from the bracket (3).
4. Disconnect the wires.
Replacing the EPO button
1. Reconnect the wires.
2. Insert the button head (1) into the bracket (2).

Removal and replacement procedures 15
3. Insert the contact modules (3) into the bracket (2).
DIN rail components
Control relay module
The HP POD 20c uses analog and digital control relays to communicate sensed parameters to the ECS for
overall POD control and reporting features.
You need a screwdriver to remove and replace the control relay module.
Removing the control relay module
1. Label the wired connections or take a picture to remember which wires to reconnect to the control relay
module.
2. Using a screwdriver, release the installed wiring.
3. Grasp the pull tab to disengage the control relay module from the DIN rail (1).

Removal and replacement procedures 16
4. Remove the control relay module (2).
Replacing the control relay module
1. Align the control relay module with the mounting and power connections.
2. Slide the module until it clicks into the DIN rail.
3. Reconnect all wiring to the control relay module.
Differential pressure sensor
The HP POD 20c uses differential pressure sensing terminals located in the ECS cabinet to take pressure
readings from the cold aisle, hot aisle, and cooling fan filters via sensing tubes. The terminal determines
cold-to-hot aisle differential pressure and filter differential pressure for all three cooling zones.
You need a small wrench to remove and replace the differential pressure sensor.

Removal and replacement procedures 17
Removing the differential pressure sensor
1. Using a small wrench, loosen the tube retaining lock nut.
2. Label the hose connector tube or take a picture to remember which hose to reconnect to the I/O system
later.
3. Remove the hoses.
4. Pull the release tab at the top of the sensor to release it (1), grasp the edges of the sensor, and then pull
forward to remove it (2).
Replacing the differential pressure sensor
1. Slide the differential pressure sensor into the grooves until it clicks into place.
2. Refer to your notes on where to insert the hose to connect it to the I/O system.
3. Using a small wrench, tighten the retaining lock nut. Do not over-tighten it.
4. Reconnect the hose to the I/O system.

Removal and replacement procedures 18
Door position devices
Magnetic contacts
Magnetic contacts are located on all doors and cabinets.
You need a screwdriver and scissors to remove and replace the magnetic contact.
Removing the magnetic contacts
1. Remove the two screws that secure the upper magnet (1).
2. Cut the tie wrap (2) and loosen the nut on the POD structure that secures the wire.
3. Pull the wire all the way through to the point of entry or ECS panel (3).
Replacing the magnetic contacts
1. Feed the wire all the way through from the point of entry or ECS panel (1).
2. Tighten the nut on the POD structure that secures the wire, and then replace the tie wrap (2).
3. Secure the magnet to the bracket using two screws (3).

Removal and replacement procedures 19
Electrical
Busway drop box
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.
IMPORTANT: HP recommends that you shut down the associated IT equipment and de-energize
the appropriate section of the power busway before attempting to remove or replace a busway
drop box. The corresponding branch circuit breaker is labeled on the busway.
You need a socket wrench to remove and replace the busway drop box.
Removing the busway drop box
1. Turn the power off by opening both breakers on the busway drop box (1).

Removal and replacement procedures 20
2. Disconnect the PDUs that are connected to the busway drop box (2).
3. Use a socket wrench to loosen and remove the bolt securing the busway drop box to the retaining
hardware bracket (1).
4. Slide the hardware bracket to the right along the busway, completely disconnecting it from the busway
drop box (2).
WARNING: Use caution when removing and replacing the busway drop box. The drop box
weighs approximately 9 kg (20 lb).
5. Rotate the busway drop box 90° so that it is perpendicular to the electrical busway, and then remove
the drop box from the electrical busway (3).