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Table of contents
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HP Modular Cooling System Setup and Install

HP mc-Series 5042 Rack Site Preparation Guide

Table of contents

Preface

Safety and regulatory information

For your protection, this product has been tested to various national and international regulations and standards. The scope of this regulatory testing includes electrical/mechanical safety, radio frequency interference, acoustics, and known hazardous materials. Where applicable, approvals obtained from third-party test agencies are shown on the product label.

Notational conventions

Warning:
Warnings highlight procedures or information necessary to avoid injury to personnel. The warning should tell the reader exactly what will result from what actions and how to avoid them.
Caution:
A caution highlights procedures or information necessary to avoid damage to equipment, damage to software, loss of data, or invalid test results.
Note:
A note highlights supplemental information.

Acronyms and abbreviations

Acronym/ abbreviation Definition
BSPP British Standard Pipe Parallel NPT National Pipe Thread
CHWS Chilled water supply NPTF American National taper pipe thread for
CHWR Chilled water return MCS 5042 mc-Series 5042 Rack
CTO Configure to order PTFE Polytetrafluoroethylene
FRU Field Replaceable Unit TN Grounding Grounding specification
HEX Heat Exchanger Unit GOW Gas, oil, water
LAHJ Local Authority Having Jurisdiction WSP Water steam pressure
Acronym/ abbreviation Definition
dry-seal pressure-tight joints
2

Safety in material handling

Warning:
Do not lift the cabinet manually. To avoid physical injury you must use a mechanical lifting device.
Warning:
Use care when working with hazardous voltages. This equipment might be configured with dual input line sources. Hazardous voltages and energy might be present even after the removal of a single input source. Trained service personnel must follow the service guidelines. Verify that the differences in ground sources meet LAHJ.
Warning:
Do not stand in front of the equipment as it is rolled off the pallet onto the ramps. When removing the equipment from the shipping pallet, follow the guidelines specified in the Installation Procedures section of the appropriate equipment guides.

Japanese notice

3

Chapter 1: Overview

A: Single Rack (standard) Configuration
B: Dual Rack Configuration
The HP mc-Series 5042 Rack (“MCS 5042”) is a supplemental cooling system for the data center that offers two configuration options:
• Preconfigured with a single HP 642 1200mm IT rack enclosure (Figure 1A)
• Configured to support two HP 642 1200mm IT rack enclosure (The second IT rack is a field-
installed option, as shown in Figure 1B).
Throughout this chapter, to ensure that all data is considered for a successful site preparation, the various specifications and aspects of the system are defined.
Figure 1: MCS 5042 configuration options
4
To provide dedicated cooling of servers and other IT equipment, the MCS 5042 integrates with the facility chilled water plant or a dedicated chilled water loop. To supply the MCS 5042, HP recommends that you install a dedicated cooling loop. The system provides cooling, recirculation, and condensation management, and it requires a small amount of AC electric power. Internal monitoring and control sensors assure server inlet air set points are achieved and provide constant performance feedback through local and network interfaces.

Product overview

A: single -rack (standard) configuration
B: Optional field-installed dual-rack configuration
The MCS 5042 is a modular, distributed cooling solution that removes the high levels of heat generated by current advanced server and mass storage systems. The MCS 5042 provides a uniform, effective, affordable, and distributed cooling approach for servers and other IT equipment installed in server racks. The MCS 5042 is a closed-loop cooling system integrated as part of a nonventilated server enclosure, in contrast to a conventional ”open” server enclosure with perforated front and rear doors.
Figure 2: MCS 5042 air flow
The special horizontal air flow of the MCS 5042 fully supports the industry-standard front-to-back cooling principle (such as cold air drawing into the front of the server and warm air being expelled out the rear of the unit). All devices receive adequate and evenly distributed cool air, regardless of the mounting position within the enclosure. The MCS 5042 distributes precisely cooled, targeted air flow evenly across the front of the IT equipment. Next, warmed air is channeled from the rear of the IT equipment into the side-mounted MCS 5042, cooled, and then re-circulated back to the front of the equipment stack. In the dual-rack IT configuration, the left side panel of the MCS 5042 cooling unit is removed to provide cooling and air recirculation for an additional IT rack. In this configuration, the cooling capacity of the MCS 5042 is divided between the two IT racks.
5

Key MCS 5042 components

The MCS 5042 key components that work together to provide cooling performance include:
• Main breakers—Provides power for the MCS 5042 through circuit breakers (do not control power
at the input panel*).
• Heat Exchanger Module (HEX)—Includes an air-to-water heat transfer device specially created for
demanding data center environments.
• Display—Provides general cooling unit status.
• Management module—Provides users with web-based capabilities to set, monitor, and control
temperature within the modular cooling unit and displays the health of the unit.
• Fan controller—Operates the fans, according to the cabinet air temperature.
• Air bleeder valve—Enables air to bleed out of the system manually when coolant is initially filled.
• Water controller—Senses for condensation, leaks, water temperatures, flow rate, and the status of
the water valve and reports this information to the management module.
• AC input/network connection—Provides primary and (if available) secondary AC input connections
and management network interface.
• AC transfer switch—Provides dual-AC power with a fail-over feature for redundancy.
• Fans—Provides circulation of cooled air through the computer equipment rack.
• Water group—Includes the water valve, flow meter, check valve, and temperature sensors.
A condensation pump with overflow and condensation lines connects to the water group. Each MCS 5042 has one water group.
* If the MCS 5042 is still connected to a power source, voltage is applied before the circuit breakers at the input panel.
6
Item
Reference
Figure 3: MCS 5042 component locations
1 Cooling unit
2 User display
3 IT rack
Item Reference
1 Condensation pump
2 Condensation pump controller
3 Control valve
4 Flow meter
5 Humidity sensor
6 Rear extension
7 Heat exchanger unit
8 Fan units
9 Management module
7
Item Reference
1 Water module
2 Fan module
3 AC transfer switch
8

MCS 5042 specifications

Physical specifications

Table 1: MCS 5042 physical specifications of a standard single rack and server cabinet configuration
Parameter
Height 2285 mm (90 in) 2007 mm (79 in) 2007 mm (79 in)
Width 1219 mm (48 in) 904 mm (35.6 in) 904 mm (35.6 in)
Depth 1829 mm (72 in) 1510 mm (59.5 in) 1510 mm (59.5 in)
Weight 732 kg (1614 lb) 1 478 kg (1054 lb) 2 1521 kg (3353 lb) 3
1
Weight for a completely packaged system with unpopulated server rack
2
Weight for an unpackaged system with unpopulated server rack
3
Approximate weight for an unpackaged CTO system (Actual weight varies, according to configuration.)
Note:
If the top shipping bracket interferes with deploying the MCS 5042, you can remove it. With the top shipping bracket, the total height of the unpackaged system is 2069 mm (81.5 inches).
Packaged system (as shipped on pallet)
Unpackaged system (off pallet, unwrapped)
Unpackaged CTO system

Electrical specifications

Table 2: MCS 5042 electrical specifications
Parameter Value Comments
Operating voltage 208/230 VAC +/- 10%, 50/60 Hz
AC line phase Single
Maximum input current 18 A Per line cord
Maximum inrush current 200 A Per line cord
Dropout/hold-up time at minimum line voltage 20 ms
Transfer time of AC transfer switch 2 s
Circuit breaker rating LAHJ Per cord
Power factor > 0.95 At all loads
Ground leakage current < 19.4 mA Per line cord
Rated power consumption 2800W Steady state
Power cords
(included with the MCS 5042)
208 V, 20 A NEMA L6-20-to-Procon
700105 (Qty 2)
250 V, 16 A IEC 309-to-Procon 700105
(Qty 2)
9

Chapter 2: Facility planning for MCS 5042 implementation

Overview

The MCS 5042 offers an incremental data center cooling solution, capable of cooling 50 kW of heat from one IT rack or two IT racks. The two basic methods to deploy the MCS 5042 are as a standalone unit or placed in a row adjacent to other MCS 5042 or standard equipment racks.
In planning water supply and design, take into consideration short-term and long-term needs for cooling. Immediate supply needs must meet the specifications and target cooling requirements, based on the parameters defined in this site preparation guide. In anticipation of future heat loads, design and install dedicated loop chilled water piping, based on specific cooling load increments (such as 50 kW or 250 kW), the specific number of MCS 5042 per row or loop, and other site build-out planning parameters. As cooling, rack space, and equipment density requirements increase, you can add MCS 5042 units to the chilled water system.
The chilled water piping system can be routed three ways:
• Routed overhead and the top into the cabinet
• Above the floor and connected through the rear of the cabinet
• Under the floor and routed through the raised flooring and through the bottom of the unit
Note:
Installation service for the MCS 5042 is order number UE005E.
Note:
For site evaluations and technical consulting for your site, see the HP Services website:
http://www.hp.com/services/criticalfacilities
Note:
The implementation of the MCS 5042 aligns with Data Center Best Practices. For more information, see Optimizing Data Centers for High- Density Computing which can be found on the HP website:
http://h18004.www1.hp.com/products/servers/proliantstorage/r acks/10000series/documentation.html
This chapter discusses key issues for site preparedness, including:
• Space considerations (for delivery, operation, and service) and other related considerations (such
as floor loading)
• Electrical considerations
• Coolant source options and quality considerations
• Other considerations
A complete site preparation checklist is provided in Appendix A
.
10

Space and positioning considerations

The MCS 5042 is larger (and, when fully populated, heavier) than a standard 19-inch equipment rack. Therefore, space required for maneuvering, operating, and servicing the MCS 5042 is greater than standard-sized racks.

Delivery space requirements

You must ensure the facility has adequate space to receive and remove the MCS 5042 from the shipping pallet. When unloading the MCS 5042, take into consideration the following:
• Forklifts must enter and transport the shipping pallet from the side.
• Delivery plans must include the possible removal of walls or door.
• A total length of approximately 6.1 m (20 feet) must be allowed to safely remove the MCS 5042
from the shipping pallet down the provided ramps.
• The packaged dimensions of the MCS 5042 preconfigured with a single IT rack are (including
shock pallet and cartons): 2285 mm (90 inches) height x 1219 mm (48 inches) width x 1829 mm (72 inches) depth

Maneuvering space requirements

When maneuvering the MCS 5042, use the following guidelines:
• Racks with casters must be moved with care. Sudden stops, excessive force, and uneven surfaces
might cause the product to overturn.
• Both the cooling unit and the IT rack have casters that are fixed at the front and swivel in the back
due to stability and safety concerns. Therefore it is easier to move the MCS 5042with the back as the leading edge.
• For long, straight distances roll the MCS 5042 with the front, fixed casters leading. For better
mobility lead with the rear, swiveling casters.
• When rolling the MCS 5042, push firmly on the front doors frame and not the door mesh of the IT
rack. The points on where to push the MCS 5042 are marked by factory.
• Make sure the rooms and doors are large enough to accommodate the movement of the MCS
5042 cabinet into the data center.
• When transporting the MCS 5042 to a different building floor, be sure elevators have adequate
load capacity, floor space, and door clearance to accommodate the rack. The MCS 5042 pallet can only be moved with forklifts from the side, which has a length of 1829 mm (72 inches).
• When transporting the MCS 5042 within a building, be sure that doorway thresholds are adequate
to hold the rack. HP does not recommend that you lift or transport the MCS 5042 by eyebolts that are attached to the upper corners of the cabinet.
Warning:
To reduce risk of personal injury or damage to the equipment, a single person must not attempt to move equipment racks alone. Obtain adequate assistance to stabilize the rack during movement or hire professional equipment riggers.
11
Figure 4 shows the maneuvering space required when unloading the MCS 5042 from a pallet. When
Item
Reference
1
MCS 5042 shock-pallet
2
3 piece ramp
3
HP mc-Series 5042 Rack
planning for moving the rack, use the delivery forms provided in Appendix A
.
Figure 4: MCS 5042 shipping package delivery and maneuvering space requirements for a single IT rack configuration
Caution:
HP recommends that a ramp angle of no greater than 5° be used to move the MCS 5042 up or down elevations. Typical data center ramps have a 5º angle (1 to 12 pitches).
12
Figure 5 shows the maneuvering space required when unloading the HP MCS 5042 Expansion Rack
Item
Reference
1
MCS 5042 shock-pallet
2
4 piece ramp
3
HP mc-Series 5042 Expansion Rack
Kit (BW973A, available on the HP website at http://www.hp.com
) from a pallet. When planning for
moving the rack, use the delivery forms provided in Appendix A.
Figure 5: MCS 5042 shipping package delivery and maneuvering space requirements for the HP MCS 5042 Expansion Rack
13

Operational space requirements

To provide space for internal airflow and housing of the cooling unit components, the MCS 5042 is wider and deeper than conventional HP racks. HP recommends a minimum access space for the MCS 5042 in the standard single rack configuration be 1219 mm (4 feet) in the front and 914mm (3 feet) in the rear as shown in Figure 6.
Figure 6: MCS 5042 operational space dimensions
14
Note:
With the top shipping bracket the total height is 2069mm (81.5 inches).
An HP MCS 5042 installed in a dual rack configuration requires approximately an additional 600 mm of width space to accommodate the second IT rack mounted to the left of the cooling unit, as shown in Figure 7.
Figure 7: MCS 5042 operational space dimensions in a dual-rack configuration

System positioning

The MCS 5042 can be installed next to an existing or new row of HP Intelligent Series racks. Based on facility design requirements, the cabinets can be arranged in a flush front (Figure 8A) or flush rear (Figure 8B) configuration.
15
Figure 8: MCS 5042 arranged in a flush front configuration with a HP Intelligent Series rack row
8A: Flush front configuration
8B: Flush rear configuration
16
Note:
When arranging the MCS 5042 immediately next to a HP Intelligent Series rack, front or rear door swing might interfere, depending on the configuration. Equipment might require the removal of a door for full, unimpeded access.

Cable openings

The MCS 5042 system has several useable cable openings at front top, rear bottom and rear top of the IT rack. Figure 9A shows the size and position of the cable openings at the top and Figure 9B shows the cable openings at the bottom in the standard single-rack configuration.
Figure 9: MCS 5042 cable openings in a single rack configuration
9A: Top view
9B: Bottom view
17
Figure 10 shows the size and position of the cable openings in a dual-rack configuration at the top and at the bottom.
Figure 10: MCS 5042 cable openings in a dual rack configuration
10A: Top view
10B: Bottom view
18
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