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FUTURE PROOFING
Great Lakes has a wide variety of accessories to support your current, planned and future needs. Let us help you"Future-Proof"
your data center.
Whether you are working with "hot aisle/cold aisle" configurations, ducted exhaust, slab floor or any variation of containment, the Great Lakes ES Series is the right enclosure for your data center needs. The flexibility and functionality of the Great Lakes ES Series enclosure allows for Multi-Generational Product Planning
(MGPP) within your data center space, to support your current, planned and future needs. Our extremely diverse portfolio of accessories has been engineered to help provide a solution to any future networking, data or equipment-related challenges. Our goal is for the enclosure to have the ability to adapt to the changing needs of the data center space, allowing for growth and technological advancements without having to worry about whether or not your enclosure will be
"up to the task."

From cable troughs and ladder rack brackets, exhaust chimneys, air managers and fan assisted doors, to a
closed-loop water-cooled enclosure kit
, Great Lakes'
portfolio of enclosures and accessories is designed to support
any changing or evolving requirements you may face during the entire life of your data center.
That's "FUTURE PROOFING."

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  • ES Server
    Enclosures
  • ES Cooling
    Options
  • Localized
    Containment (LC)
  • LC: Passive
    or Active
  • Closed-Loop
    Water-Cooled
  • Aisle
    Containment
  • CFD
    Modeling

Backed by our 25 years of experience in enclosure engineering and manufacturing, the Great Lakes ES Server Enclosure and its diverse portfolio of accessories is engineered to make it easy to mount, connect and network electrical and data communications equipment from any manufacturer within and between the enclosures installed in a data center.

From this single enclosure platform, you can move from a low density application where you may only deal with a load of 4-8 kW to a high density configuration where you may be relying on additional accessories or an outside cooling source to handle a load, perhaps in excess of 30 kW. The ES Series enclosure is designed to help you increase the cooling capacity of your data center while increasing your CRAC (Computer Room Air Conditioning) unit efficiency.

Great Lakes' EIA (Electronic Industries Alliance) rails found in the ES Series Enclosure are #12 gauge steel, formed three times for added strength. The rails of an ES enclosure can support 907 kg. of equipment and accessories.

Our proprietary Flexible Mounting Profile (FMP) is a series of holes along each ES rail, positioned at one- RMU increments, outside of the standard pattern for EIA 310-E compliant rail mounted equipment.

We've created a number of accessories to mount vertically to rails without sacrificing valuable rack-mount space. "Zero-U" brackets easily attach to the FMP, to mount any 19" EIA equipment such as cable managers and power strips. Copper bus bars, cable management fingers, and other accessories also mount to the FMP.
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ES ENCLOSURE COOLING OPTIONS
From cable troughs and ladder rack brackets, exhaust chimneys, air managers and fan assisted doors, to a closed-loop water-cooled enclosure kit, Great Lakes' portfolio of enclosures and accessories is designed to support any changing or evolving requirements you may face during the entire life of your data center.
That's "FUTURE PROOFING."
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LOCALIZED CONTAINMENT
Together, the Adjustable Air Manager, the Exhaust Chimney and the Brush Grommet Kit work to contain conditioned air and remove heated exhaust from the enclosure, while virtually eliminating bypass airflow and hot air recirculation. We call this solution "Localized Containment" (eliminating the hot aisle and reducing the need for perforated tiles in the cold aisle).
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EXHAUST CHIMNEY &
FAN TRAY
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The Exhaust Chimney (GL-EC) helps to remove heated exhaust far from the enclosure or, more efficiently, to collect heated exhaust into ducting or a ceiling plenum to return it to the CRAC unit.
  • Chimneys available with an adjustable range of 457mm to 813mm or 813mm to 1168mm
  • 2039 CMHr or 3840 CMHr Fan Trays available
AIR MANAGER & FAN TRAY
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The Adjustable Air Manager (AM-ES) mounts in the bottom of a Great Lakes ES enclosure (on a raised floor) to bring data center conditioned air inside the enclosure closer to the equipment to be cooled. A simple slide on the Air Manager allows you to control the flow of conditioned air coming into the bottom of the cabinet. This increases air flow, lowering temperatures in the front of the equipment while maintaining air pressure.
  • Air manager for standard airflow mounts in bottom 1 RMU of enclosure
  • 1019 CMHr Fan Tray for standard airflow
  • Air manager for high airflow mounts in bottom 2 RMU of enclosure
  • 1597 CMHr Fan Tray for high airflow
BRUSH GROMMET KIT
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The Brush Grommet Kit (BGRK) installs between the rail and the side panel to allow cable passthrough while at the same time eliminating bypass air flow and hot air recirculation.
  • Kit is tool-less and mounts to ES Enclosure rails along the FMP
  • FMP (Flexible Mounting Profile) is a series of holes along each rail located outside of the EIA pattern
  • Holes are located at 1 RMU increments
  • Cable management, mounting brackets, bus bars and other accessories can also be mounted to the FMP
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COOLING: PASSIVE OR ACTIVE
Localized Containment can be Passive or Active, depending on data center infrastructure and conditions. Localized Containment moves the cold aisle (via the Air Manager) and the hot aisle (through the Exhaust Chimney) into the enclosure. Depending on your data center's infrastructure, the delivery of conditioned air and your desired strategy for handling the return, your solution can be passive or active.
PASSIVE

Many times a data center's air conditioning/handling systems create airflow under the floor. In this circumstance, the Air Manager and Exhaust Chimney provide localized containment of the conditioned air within the front of the enclosure and extraction of the heated exhaust on their own, without the aid of fans. The opening on the Air Manager is 100% adjustable with the use of a simple slide to maintain static pressure and to accommodate for the amount of air available to each enclosure.
ACTIVE
If static pressure or air flow is too light, Great Lakes offers fan trays for the Air Manager and Exhaust Chimney in the ES Series enclosure which deliver conditioned air within the front of the enclosure and accelerate the removal of heated exhaust. The slide on the Air Manager can still be adjusted in any enclosure to ensure optimal conditions can be met, based on available ambient airflow and static pressure.
HIGH FLOW
Great Lakes also offers High Flow options for the most challenging raised floor conditions or for use in certain slab floor environments to further accelerate the air flow under the enclosure and the removal of heated exhaust.

In these circumstances a source of conditioned air must be available and the enclosures must be on casters or levelers to create a pool of cold air under the enclosure from which the Air Manager may draw.

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DUCTED EXHAUST: FORM OF HOT AISLE CONTAINMENT
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PASSIVE
Chimneys without the assistance of fans

ACTIVE
With optional fan trays in chimneys
2039 CMHr (11kW @ -1°C Δ)

ACTIVE HIGHFLOW
With optional fan trays in chimneys
3840 CMHr (21kW @ -1°C Δ)
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AIR MANAGER: FORM OF COLD AISLE CONTAINMENT;
ELIMINATES THE NEED FOR END OF ROW DOORS

PASSIVE
Air Manager without the assistance of fans


ACTIVE
With optional fan trays in enclosure base
1019 CMHr
ACTIVE HIGHFLOW
With optional fan trays in enclosure base
1597 CMHr



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CLOSED-LOOP WATER-COOLED ENCLOSURE
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The Great Lakes Closed-Loop Water-Cooling System, developed in conjunction with Naissus Thermal Management Solutions, addresses the primary challenge faced by data center managers today. As smaller, more powerful servers are compacted into higher density configurations, data center and air conditioning systems must expand to provide sufficient cooling air.

Even with costly floor space and air conditioning additions, data centers still struggle with uneven cooling and hot air recirculation resulting from heat exhaust traveling from other enclosures. The Great Lakes Closed-Loop Water-Cooled Enclosure (CLWCE) provides an integrated closed-loop cooling system, saves on floor space, power consumption and maintenance. It also seals servers from re-circulated exhaust, becoming a versatile high-density solution to today's data center challenges.

Great Lakes offers a fully configured enclosure (CLWCE) or a kit to convert any 1000mm or deeper ES Series Enclosure from an air cooled unit to a water-based,
closed-loop liquid-cooled enclosure.
HOW IT WORKS
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1. Chilled water at a consistent temperature and flow rate directly from a viable source or via a coolant distribution unit (CDU) enters the heat exchanger coil, cooling air as it passes over it.

2. Conditioned air at consistent pressure is directed through a plenum chamber.

3. Conditioned air passes through rack mounted equipment.

4. Quiet (65 dB) high efficiency variable speed exhaust fans remove hot air.

5. Hot air passes across the heat exchanger.
6. Water then leaves the heat exchanger coil to begin a return trip to the chiller.
Download the Case Study!
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Dimensions

- 2134mmH x 800mmW x 1372mmD
- Rack Spaces: 44 RMU
- Usable height: 36 RMU

Structural

- Empty weight: 386 kg.
- Shipping weight: 409 kg.
- Static load: 907 kg.
- Four, 44 RMU, EIA vertical mounting rails, numbered from 1 to 44 spaces

Front Door

- Non-reversible aluminum assembly combined with a full View-Thru™ Lexan® panel
- Electrical, spring-loaded automatic door releases

Rear Door

- Non-reversible, aluminum door assembly
- Electrical, spring-loaded automatic door releases
- Integral fan door/plenum duct

Top Panel
- Standard top with brush cable entries

Side Panel
- 16 gauge cold-rolled steel
- Two lift handles per panel; Removable

Cooling Components

- Rear-Mounted Fan Trays
- 3 Electronically Commutated (EC) Backward Curved Impellers/Fans
- Operating Point 0 % at 20 degrees C; 100% at 40 degrees C
- 230VAC (200 – 270) Nominal voltage, 2.9A current draw
- Individual fan thermal speed control sensors (one per fan)

Heat Exchanger

- 8-16 gpm heat-exchange cooling core supplied with ¾" high pressure hose and optional ¾" flange NFP connections
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AISLE CONTAINMENT
Many times cooling challenges cannot be met simply by expanding infrastructure or adding additional CRAC units. The strategy behind containment is to either capture as much conditioned air as possible or to isolate and remove as much heated exhaust air as possible within the data center space.

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HOT AISLE
Ducting the exhaust with chimneys creates a simple version of hot aisle containment. The hot aisle is now contained locally in the rear of each enclosure.
  • 2039 CMHr (11kW @ -1°C Δ) or 3840 CMHr (21kW @ -1°C Δ)
    Optional fan trays available
  • Cooling capacity of chimneys without fan trays are dependent on the data center's CRAC units
SLIDING AISLE DOORS
The doors create a defined space, either isolating exhaust or creating a concentrated area of conditioned air which enhances the cooling effect on the enclosures within the contained space.
  • Add doors to both ends of the aisle, either hot or cold
  • Can be used in aisle widths from 48" to 72"
  • Doors are mounted with a trolley assembly which spans the aisle and attaches to the enclosure
  • No bottom track is needed
POLARPLEX

In addition to containment doors, there are a number of containment products, including PolarPlex, which can be deployed in a variety of strategies.
  • Vinyl containment panels can mount across the aisle
  • Vinyl containment panes can mount above enclosures
  • Thermoplastic containment curtains can be hung from the ceiling
  • PolarPlex Systems consist of structural aluminum framing and vinyl curtains or thermoplastic panels
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HOT AISLE CONTAINMENT
In this example, the customer chose to employ a data center solution designed to contain the hot aisle. Perforated tiles were installed in the cold aisle. The conditioned air then passed through mesh doors to cool the equipment mounted within the enclosures.

The customer chose not to use any rear doors, so heated exhaust was simply vented into the hot aisle which was contained by aisle doors. Vertical thermoplastic containment panels were attached to and installed above the enclosures to continue the containment process as the heated air naturally rose and was channeled to a drop-ceiling plenum which then directed the heated exhaust to the hot air return of the data center's CRAC units.
COLD AISLE CONTAINMENT
In this concept, the goal is to create a contained pool of conditioned air in the cold aisle. Containment doors are
then designed to isolate the cold aisle in this grouping of enclosures. The goal for this strategy is to saturate the area in front of the enclosures with this contained conditioned air and to focus it where it is most needed; in front of the equipment mounted within the enclosures.

Once the conditioned air passes through the equipment, the heated exhaust is then removed from the rear of the enclosures via Exhaust Chimneys.
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What is CFD?

Computational Fluid Dynamics (CFD) modeling uses computer calculations to simulate the interactions of liquids and gases with various surfaces in a defined space.  To better understand the role the enclosure plays in the operation of the data center, Great Lakes has developed the capability to perform CFD analysis with data center specific software. We are now able to help customers to better understand what is currently happening in their data center environment, to test or plan capacity increases or, to test a data center, room or pod design before ever starting a build.

To learn more about Great Lakes' CFD capabilities, to contract Great Lakes to perform a CFD analysis on your facility, to investigate the impact of planned changes to your facility or to investigate a new design to a future facility, please contact your Great Lakes sales representative.
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What a CFD model can do:
  • Capacity Planning
  • Address 'hot-spots'
  • Evaluate efficiency
  • Floor tile layouts
  • Test containment solutions
  • Evaluate room efficiency
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What we need to complete a CFD model:
  • Layout of the room(s)
  • CAD detailed drawing
  • List of IT equipment and assets
  • List of cooling equipment
  • Known obstructions under and above floor
  • Piping
  • Tape storage
  • Furniture
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CFD Model Sample: Standard Cold Aisle Containment with Horizontal Polargy Panels
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Physical Space
Dimensions: 40' Wide by 60' Long
Raised floor height: 24″
Ceiling height from raised floor: 14′
2403 sq. ft raised floor data center

IT Specifications
7.2 kW per enclosure
Total IT Load = 459kW
64 Racks at 44 RMU (1408 servers @ 2U)

Room Conditions
CRAC unit supply 75 degrees Fahrenheit
Aisle contains 16, 40% perforated floor grilles

Server Enclosure Configuration
GL840ES-3042MS
Frame: 8401ES-3042, 84”H x 30”W x 42”D
Solid Top , TPES-S
Mesh Contour Front Door, 8402E-MC29
Mesh Contour Rear Door, 8402E-MC29
Side rail grommet kit, BGRK30

Network Enclosure Configuration
GL840ES-3048MS
Frame: 8401ES-2448, 84”H x 30”W x 48”D
Solid Top, TPES-S
Mesh Contour Front Door, 8402E-MC29
Mesh Contour Rear Door, 8402E-MC29
Side rail grommet kit, BGRK30

Containment Components:
Aisle Containment Doors, ACD840ES
Horizontal Polargy Containment Panels, PPLEX-HPNL24
Tool-less filler panels for unused RMU, 1.75-FPTL19

Top view of cold aisle containment with horizontal Polargy panels.
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Performance
Air Handler Supply: 75F
Air Handler Return: 98.2F
Room Temp. Change: 19.2
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Temperature, cabinet bottom height
End of row containment creates a consistent cold aisle temperature
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Temperature, halfway cabinet height
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Overhead containment panels reduce recirculation in the top of enclosures creating very consistent temperatures in the aisles of the data center.
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Equipment intake temperatures are consistent from top to bottom.
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Overall, the system is efficient in segregating hot air from the room providing a high return temperature to the CRAC unit. However, end of row doors and overhead panels add additional infrastructure and safety considerations.

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