Post on 30-Sep-2020
[Reference Design 8]
DESIGN OVERVIEW
Data Center IT Capacity
900 kW
Adaptable from 200 kW to 2700 kW
Target Availability
Tier 2
Annualized PUE at 100% Load
1.50 in Miami, FL USA
1.34 in Montreal, Canada
1.41 in St. Louis, MO USA
Total Racks and Average Density
130 racks at 6.9 kW/rack
IT & Facility Floor Space
11650 ft2
Regional Voltage and Frequency
480V, 60Hz
ABOUT THIS DESIGN Water-cooled chiller with cooling
tower architecture
Integrated row-based air
distribution
Energy savings through water-
side economizer during favorable
outdoor conditions
Highly scalable and adaptable
900 kW, Tier 2, Chilled Water, 11650 ft2
INTRODUCTION
The planning process of most projects can be iterative and thereby
expensive. Data center projects are burdened with these challenges and can
benefit greatly from simplification and time savings. Schneider Electric’s data
center reference designs help customers optimize the planning process by
providing them with validated, proven, and documented data center physical
infrastructure designs. The use of these designs has a positive impact on not
just the project itself, but also on the performance, reliability, and efficiency of
the data center over its lifetime.
Reference Design 8 includes design information for three spaces: IT space,
facility power, and facility cooling. Combined together, they comprise the
integrated power, cooling and structural systems required to meet the
design’s specifications published in this overview document.
[Reference Design 8] 2
Schneider Electric www.schneider-electric.com
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DESIGN OPTIONS
This reference design can be modified as
follows without a significant effect on the
design’s performance attributes:
Add StruxureWare Power Monitoring
Expert
Provision for load bank
Change UPS batteries
Add/change standby generator options:
Location
Tank size
Fuel type
FACILITY POWER BLOCK DIAGRAM
Facility Power
The facility power system supplies power to all of the critical and non-critical
components within the data center. The architecture used in this electrical
design is a single path with N+1 UPS and a generator. Switching between
generator power and utility is achieved using a programmable logic controller
(PLC). A 3200 amp bus feeds PZ4 electrical and mechanical switchboards. In
the electrical room, UPSs are configured down-stream of the switchboards. A
Symmetra MW configured to N+1 redundancy provides 1200 kW of critical
power to the IT room with 6 minutes of runtime. Valve regulated lead acid
(VRLA) batteries are housed in an isolated battery room. A Galaxy 5000 UPS
provides 72 kW of power to the pumps in the facility cooling system. Additional
low-voltage transformers are included in the design to support lighting and other
building loads. The power distribution architecture from the electrical room to
the IT space utilizes a combination of LV panels and InfraStruxure power
distribution units (PDUs). The facility power system is designed to support
additional peripheral devices like fire panels, access control systems, and
environmental monitoring and control devices. Power meters in the electrical
path monitor power quality and allow for predictive maintenance & diagnostics of
the system. These meters also integrate with StruxureWare Power Monitoring
Expert.
Every component in this design is built and tested to the applicable ANSI,
NEMA, UL or IEEE standards.
Further design details and schematics are available in the engineering package.
Name Value Unit
Total amps (main bus) 3200 A
Input voltage (main bus) 480 V
Switchboard kAIC 65 kA
Power path Single
Generator redundancy N
IT space UPS capacity 1200 kW
IT space UPS redundancy N+1
IT space UPS runtime @ rated load 6 minutes
IT space UPS output voltage 480 V
Facility cooling UPS capacity 72 kW
Facility cooling UPS redundancy N
Facility cooling UPS runtime @ rated load 12 minutes
FACILITY POWER ATTRIBUTES Utility
AC G
SSW
LOAD
BANK
1200A, 480V, 65kA
2000A, 480V, 65kA
3200A, 480V, 65kA
10x PDU Feeds to
IT Space
2000A, 480V, 65kA
400A,
480V,
65kA
72 kW
Galaxy
5000
4x CHW Pumps
2x
Cooling
Tower
2x
Chiller
4x Cond.
Water
Pump
SSW
1200kW (N+1)
Symmetra MW
1400kW
Mech.
Panel
(CRAHs,
AHUs, etc.)
[Reference Design 8] 3
Schneider Electric www.schneider-electric.com
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FACILITY COOLING BLOCK DIAGRAM
DESIGN OPTIONS This reference design can be modified as
follows without a significant effect on the
design’s performance attributes:
Add StruxureWare Cooling
Monitoring Expert
Facility Cooling
The mechanical design utilizes chilled water as the primary medium for heat
dissipation. The architecture consists of a single chilled water loop. The cooling
system contains two 1196 kW water-cooled chillers in an N+1 redundant
configuration with N+1 pumps. Water-side economization is achieved with a
plate & frame heat exchanger to save energy during favorable outdoor
conditions.
In order to extend availability of chilled water during a power outage, a 7000
gallon water storage tank provides 7 minutes of continuous cooling.
The piping architecture of the mechanical system feeds row-based InRow RC
CRAHs in the IT space. It also feeds room-based CRAHs in the electrical and
battery rooms. More information on the cooling configuration is provided in the
IT space section of this document.
This design is instrumented to work with StruxureWare Cooling Monitoring
Expert.
Further design details such as dimensions, equipment placement, temperature
set points, pipe sizing, flow rates, and pressure drops are available in the
engineering package.
FACILITY COOLING ATTRIBUTES
Name Value Unit
Total cooling capacity 1196 kW
Input voltage 480 V
Heat rejection medium Chilled water
Mechanical redundancy N+1
Outdoor heat exchange Water-cooled chiller with cooling tower
Coolant supply temperature 46 F
Coolant return temperature 56 F
Storage tank size 7000 gallons
Ride-through time 7 minutes
Economizer type Water-side
Primary loop pumps
Tower Tower
VFD
System
bypassVFD
Heat
Exchanger
Thermal Storage
Expansion
tankCity Water
Dirt/air
separator Strainers
CW supply
to IT space
CW return
from IT space
VFD
VFD
Secondary loop
pumps
Chiller
Chiller
VFD
VFD
CW supply
CW return
… 76 units 300mm...
InRow
RC
300
mm
InRow
RC
300
mm
InRow
RC
300
mm
InRow
RC
300
mm
[Reference Design 8] 4
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Name Value Unit
IT load 900 kW
Input voltage 480 V
Supply voltage to IT 120 / 208 V
Average density 6.9 kW/rack
Number of racks 130 racks
IT floor space 6350 ft2
Single or dual cord Single
Heat rejection medium Chilled water
CRAC/CRAH type Row-based CRAH
CRAC/CRAH redundancy N+1
Containment type None
DESIGN OPTIONS
This reference design can be modified as
follows without a significant effect on the
design’s performance attributes:
Add environmental and security
management
Change rack options (tall,
wide, deep)
Change power distribution options
Rack PDU type (basic,
switched)
Add StruxureWare Data Center
Expert
IT ROOM ATTRIBUTES
IT Space
The IT capacity of this design is 900 kW. The design is highly scalable and
adaptable; it can be configured to support IT loads within a range. Smaller
starting loads as low as 200 kW can be supported by making adjustments such
as reducing the number of IT pods or decreasing the quantity of UPS modules.
Likewise, this design can be used as a baseline for larger loads as high as 2700
kW by using a step and repeat approach to the design. This flexibility drives
efficiency and defers capital expenditure until needed.
The IT space design specifies all of the physical infrastructure systems, as well
as their physical arrangement/spacing, required to meet the overall design’s
performance attributes. This includes racks, PDUs, rack power distribution,
cooling units, and airflow management systems.
Each pair of rows (pod) within the IT space can be “stepped and repeated” in a
standardized and predictable manner. This enables right-sizing of power and
cooling that scales with IT growth. Each pod supports an average power
density of 6.9 kW per rack. All the pods are outfitted with integrated power and
cooling distribution.
Each pod is powered by floor mount factory-configured power distribution units
(PDUs). Every rack is configured with a metered rack-mount PDU to enable
remote monitoring of the units for efficiency and capacity management.
Each pod is cooled by N+1 redundant chilled water-based InRow RC CRAHs
that control the supply of cool air by monitoring temperature variation at the rack
level.
The security of the room is maintained at multiple points. At the rack level,
access is controlled by a door lock and sensor. At the room level, security
cameras are utilized for monitoring.
BBlock
BBlock
BBlock
BBlock
BBlock
Row S
Row L
Row F
Row D
Row U
Row B
Row KRow J
Row H
Row R
Row N
Row V
Row T
Row E
Row Q
Row C
Row G
Row M
Row P
Row A
RR/R-3/Z9
RR/D-9/Z6
RR/G-7/Z2
RR/B-6/Z6
CC/F-
10/
Z7
RR/N-6/Z4
RR/B-11/Z6
RR/C-9/Z1
CC/
G-8/
Z2
CC/
V-7/
Z10
RR/S-2/Z5
RR/E-9/Z2
RR/K-8/Z8
CC/T-
8/
Z10
CC/J-
8/
Z3
CC/
M-
2/
Z8
RR/E-2/Z2
RR/D-6/Z6
RR/A-6/Z1
CC/
P-5/
Z9
RR/C-3/Z1
CC/
K-
10/
Z8
RR/T-6/Z10
PP/E-12/Z2
RR/M-3/Z8
CC/F-
7/
Z7
CC/
K-5/
Z8
CC/
P-7/
Z9
CC/F-
3/
Z7
RR/P-4/Z9
CC/
R-2/
Z9
RR/H-6/Z7
CC/
N-3/
Z4
RR/L-3/Z3
CC/
R-4/
Z9
CC/
D-2/
Z6
PP/A-12/Z1
RR/M-1/Z8
RR/U-6/Z5
RR/S-9/Z5
CC/L-
5/
Z3
RR/E-5/Z2
CC/
E-4/
Z2
RR/B-7/Z6
RR/P-8/Z9
RR/F-4/Z7
RR/V-5/Z10
RR/H-9/Z7
CC/
R-7/
Z9
CC/
D-7/
Z6
PP/B-1/Z6
RR/K-2/Z8
RR/K-6/Z8
RR/M-5/Z8
RR/V-8/Z10
CC/
B-5/
Z6
CC/
G-
10/
Z2
RR/N-2/Z4
CC/
B-3/
Z6
RR/D-11/Z6
RR/U-7/Z5
CC/
A-4/
Z1
RR/P-6/Z9
RR/R-1/Z9
RR/A-2/Z1
CC/
C-2/
Z1
CC/
B-9/
Z6
RR/U-4/Z5
CC/
U-8/
Z5
CC/
A-8/
Z1
CC/
S-3/
Z5
PP/F-1/Z7
PP/S-12/Z5
RR/F-6/Z7
RR/V-9/Z10
CC/F-
5/
Z7
CC/
U-5/
Z5
RR/E-6/Z2
RR/T-3/Z10
RR/L-7/Z3
PP/N-12/Z4
CC/
D-4/
Z6
CC/
S-7/
Z5
RR/C-6/Z1
CC/J-
10/
Z3
CC/
G-5/
Z2
CC/
Q-2/
Z4
RR/E-11/Z2
RR/N-9/Z4
CC/
E-3/
Z2
CC/
C-
10/
Z1
RR/R-9/Z9
CC/
A-3/
Z1
CC/J-
3/
Z3
RR/C-7/Z1
RR/J-9/Z3
CC/
V-3/
Z10
RR/M-6/Z8
RR/K-9/Z8
RR/J-6/Z3
RR/Q-3/Z4
RR/L-11/Z3
CC/
U-
10/
Z5
RR/V-4/Z10
CC/
Q-5/
Z4
RR/S-6/Z5
CC/
N-
10/
Z4
RR/F-2/Z7
RR/U-3/Z5
RR/U-1/Z5
RR/G-4/Z2
RR/A-11/Z1
RR/V-6/Z10
RR/F-11/Z7
RR/N-5/Z4
RR/E-7/Z2
CC/T-
4/
Z10
RR/C-4/Z1
RR/B-8/Z6
CC/
U-2/
Z5
RR/C-11/Z1
CC/
Q-
10/
Z4
RR/A-5/Z1
RR/G-9/Z2
RR/V-2/Z10
CC/
H-2/
Z7
RR/G-1/Z2
PP/J-12/Z3
RR/R-8/Z9
CC/
A-
10/
Z1
RR/M-9/Z8
CC/L-
10/
Z3
RR/L-1/Z3
CC/
Q-8/
Z4
RR/S-5/Z5
RR/U-11/Z5
RR/B-4/Z6
CC/
D-
10/
Z6
CC/
N-8/
Z4
CC/
M-
4/
Z8
RR/S-8/Z5
RR/J-7/Z3
CC/
E-
10/
Z2
CC/
M-
7/
Z8
RR/T-9/Z10
PP/P-1/Z9
CC/L-
8/
Z3
CC/
P-3/
Z9
RR/L-4/Z3
RR/J-5/Z3
RR/T-5/Z10
RR/K-4/Z8
CC/J-
4/
Z3
RR/R-6/Z9
RR/G-11/Z2
RR/K-11/Z8
RR/J-2/Z3
CC/
B-
10/
Z6
RR/G-6/Z2
RR/H-8/Z7
RR/Q-9/Z4
RR/H-5/Z7
CC/
H-
10/
Z7
RR/D-5/Z6
RR/V-1/Z10
RR/A-7/Z1
CC/
G-2/
Z2
RR/T-2/Z10
PP/T-1/Z10
RR/L-6/Z3
RR/P-9/Z9
RR/B-2/Z6
CC/
S-4/
Z5
RR/D-8/Z6
RR/S-11/Z5
RR/G-3/Z2
CC/
K-7/
Z8
RR/R-11/Z9
RR/Q-6/Z4
RR/L-9/Z3
CC/
S-
10/
Z5
RR/Q-11/Z4
RR/T-7/Z10
RR/D-1/Z6
CC/
P-
10/
Z9
RR/F-8/Z7
RR/H-1/Z7
CC/
E-8/
Z2
RR/M-8/Z8
RR/P-11/Z9
RR/R-5/Z9
RR/D-3/Z6
CC/
R-
10/
Z9
CC/
K-3/
Z8
RR/A-9/Z1
CC/
N-4/
Z4
CC/
M-
10/
Z8
RR/H-3/Z7
RR/J-11/Z3
CC/
C-8/
Z1
RR/N-11/Z4
RR/P-2/Z9
CC/
C-5/
Z1
RR/M-11/Z8
RR/C-1/Z1
RR/Q-4/Z4
RR/U-9/Z5
RR/Q-1/Z4
PP/K-1/Z8
RR/Q-7/Z4
RR/N-7/Z4
RR/F-9/Z7
RR/H-11/Z7
CC/L-
2/
Z3
CC/
H-7/
Z7
CC/
H-4/
Z7
Controller
[Reference Design 8] 5
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Design Attributes OVERVIEW Value Unit
Target availability Tier 2 Tier
Annualized PUE at 100% load 1.50 / 1.34 / 1.41
Data center IT capacity 900 kW
IT & facility floor space 11650 ft2
Average density 6.9 kW/rack
FACILITY POWER Value Unit
Total amps (main bus) 3200 A
Input voltage (main bus) 480 V
Switchboard kAIC 65 kA
Power path Single
Generator redundancy N
IT space UPS capacity 1200 kW
IT space UPS redundancy N+1
IT space UPS runtime @ rated load 6 minutes
IT space UPS output voltage 480 V
Facility cooling UPS capacity 72 kW
Facility cooling UPS redundancy N
Facility cooling UPS runtime @ rated load 12 minutes
FACILITY COOLING Value Unit
Total cooling capacity 1196 kW
Input voltage 480 V
Heat rejection medium Chilled water
Mechanical redundancy N+1
Outdoor heat exchange Water-cooled chiller with cooling tower
Coolant supply temperature 46 F
Coolant return temperature 56 F
Storage tank size 7000 gallons
Ride-through time 7 minutes
Economizer type Water-side
IT SPACE Value Unit
IT load 900 kW
Input voltage 480 V
Supply voltage to IT 120 / 208 V
Average density 6.9 kW/rack
Number of racks 130 Racks
IT floor space 6350 ft2
Single or dual cord Single
Heat rejection medium Chilled water
CRAC/CRAH type Row-based CRAH
CRAC/CRAH redundancy N+1
Containment type None
[Reference Design 8] 6
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Demo:
Visit www.apc.com/software to learn more about StruxureWare for Data Centers! >
Data center infrastructure management (DCIM)
Good design and quality construction alone do not ensure a highly available &
efficient data center. Data centers require on-going monitoring and management to
ensure the facility lives up to its design intent. StruxureWare for Data Centers is a
software management suite designed to collect and manage data about a data
center’s assets, resource use, and operational status throughout the life cycle of the
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managers optimize the data center’s performance and meet IT, business, and
service-oriented goals. From IT assets to racks, rows, rooms and buildings,
StruxureWare for Data Centers delivers the right information to the right users at the
right time.
Control level: Experts, on site or remotely, can control process performance and
ensure business continuity in real time, while tracking energy consumption in a highly
critical and secure environment.
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through smart analytical tools, often spanning multiple sites.
Enterprise level: C-level executives can drive their sustainability strategy efficiently,
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StruxureWare for Data Centers allows for flexibility when requirements and
implementation strategies change over time. StruxureWare software applications
and suites simplify integration time, improve reliability, enhance visibility to energy
information, and streamline operational efficiency.
[Reference Design 8] 7
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