Wednesday, May 21, 2014

Menggunakan AC In-Row

In-Row Cooling Technology 
Introducing the New Standard in High Density Cooling. It changes all the rules. This sets a new Paradigm for cooling in Data Centers.
Only 1/2 rack wide, it uses 1 foot of row space (no side clearance required) and can cool up to 30KW (100,000 BTUs, 8.5 tons).
Use one to solve a Hot Spot, or multiple units to cool your entire Data Center.

Priced under $10,000
Please Contact NAAT'S Network Services Team for more information.

In-Row vs Traditional Cooling

Traditional CRACs

Traditional CRACs (Computer Room Air Conditioner) were fine when the heat load was 25-50W/sq. ft.. They were usually 6 ft wide by 3 ft deep and needed 3 ft front and side clearance for maintenance. This translates to approximately 18 sq.ft of floor space for the unit and an additional 33sq. ft. for service clearance (total of ~50 sq.ft.)
This meant that a traditional “10 ton” unit could cool approximately 35 KW (if the airflow permitted) and needed 50 sq ft of floor space. They were usually located at the outside edges of the room and used a raised floor to distribute cool air where it was needed.
With today’s high-density heat loads at 5-15KW per rack=100-300W/sq. ft. (and rising) this traditional cooling methodology simply does not work for high-density applications. 
In-Row Cooling Technology
In-Row is the new standard in High Density Cooling. It changes all the rules. Rated at up to 30KW ( ~8.5 tons/105,000 BTUs) it is only 12” wide by 42” deep.(3 ½ sq. ft.) This unit fits directly into existing rows of cabinets, occupying only ½ rack of row space and does not require any additional side clearance space. This new groundbreaking design has multiple benefits.
The closer to the heat generation source the air conditioner is, the less likely mixing of hot and cold air streams will occur. The In-Row Cooling unit is a computer room air conditioning system with a horizontal airflow pattern specifically designed for hot aisle/cold aisle configurations. Warm exhaust air is drawn directly from the hot aisle, cooled, and distributed into the cold aisle, ensuring that equipment inlet temperatures are constant and adequate for proper operation. Closely coupling the air conditioner with the heat source produces a more efficient direct return air path to the system.
In Row Cooling Improves Energy Efficiency
 Close Coupled Cooling
The APC Inrow unit cooling falls under the general category of close coupled cooling.   Close coupled cooling is more energy efficient than tradition perimeter CRACs with raised floor cooling. This is due the fact that the distance that the air needs to travel (cool and warm return) is much shorter, thereby improving the effective net cooling power, and also lower the fan energy required to move the air. This also prevents hot and cold from mixing, which impacts efficiency.
 In addition, the APC Inrow unit is designed to be used as the basis for:
 Contained Cooling
 *      Hot Aisle Containment
 *      Cold Aisle Containment
 *      Rack Level Containment
The APC Inrow unit can be installed to operate more efficiently in all of the above. This is particularly true at High-Density heat loads where power exceeds the capabilities of traditional cooling, which begin to lose efficiency beyond 2 KW per rack:
*      5-8 KW per rack using Close Coupled Cooling
*      8-15 KW per rack for Hot or Cold Aisle Containment
*      15-30 KW per rack using Rack Level Containment
 NAAT has various options to design and outfit (or retro fit) your data center or server room to meet cooling challenges and improve your energy efficiency.
Best of all, IN-Row Cooling is extremely Cost-Effective – Priced under $10,000. 
Use one In-Row unit to solve a Hot-Spot or let NAAT design a complete power and cooling solution for your organization’s Data Centers using the cooling distribution unit which supports up to 12 In-Row cooling Units.
Chilled Water Distribution Unit
For Larger Sites..
The Chilled Water Distribution Unit (sort of Chilled Water version of a PDU) supports up to 12 of the 30KW In-Row units. It uses flexible piping to connect to the In-Row unit, so that it once it is installed, you can add the In-Row units at any time, without hard piping any chilled water, or disrupting data center operations.
In effect, you can just keep rolling in more In-Rows (they have wheels) and just plug in and run the flexible hose to add more cooling where and when you need it.


  1. We have in-row system at main office. its quiet impressive how good it works. Guys from did great job installing it, now we are so grateful to them.

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