Data Center Products
The Original DirectAire®
Key Performance Characteristics
- Directional air flow achieves a 93% total air capture
- Pressure equalizing diffusion blades
- Cools over 25kW per rack
- 68% open area delivers 2,600CFM @ .1” H2O
- Reduces capital expenditures on cooling infrastructure by 40%
- Over 40% annual fan energy savings
- 2,500 lbs design load boosted to 3,000 lbs with HD stringer
Total Air Capture & Data Center Airflow
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Total Air Capture (TAC) rate refers to the amount of air delivered through the panel that is then captured by the server rack placed in front of that panel.
The black box represents a standard 24" x 76" server rack. Lines have been added to show the three zones of the server rack. Zone 1 represents the bottom of the rack closest to the floor and Zone 3 represents the top of the rack farthest from the air supply.
Note that the DirectAire® airflow panel delivers 93% of its 2,600 CFM at .1" H2O to the face of the server. Furthermore, you will notice this airflow is spread evenly across the three zones of the rack. You can see in this image that even and directed airflow distribution is achieved using the DirectAire® panel.
Eliminate the Burden of Airflow Containment
Containment systems in a data center come with many challenges including fire code requirements, service distribution restraints and limited flexibility. Unlike other panels which throw air straight up in a vertical plume, the DirectAire's angular throw evenly distributes the majority of the air it delivers directly to the face of the rack providing effective containment when used in conjunction with best practices.
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| DirectAire's 93% TAC rate enables you to gain near peak airflow without containment. | Typical airflow panels require containment systems to ensure maximum airflow to the racks. |
High Density Cooling Capacity
DirectAire's ability to deliver high volumes of air directly and evenly across the face of the server rack gives it the unique ability to handle very high density equipment. The table below lists cooling capacities per rack based on a mathematical calculation for systems without containment. Laboratory testing was conducted using load banks to measure the cooling effectiveness and verify the calculated kW/ rack heat loads.
DirectAire®
CFM & Cooling Capacity |
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Pressure (in. H2O) |
CFM |
DirectAire kW/Rack (93% TAC) |
.02 |
1151 |
8.5 |
.04 |
1626 |
12.0 |
.05 |
1844 |
13.6 |
.06 |
2007 |
14.8 |
.08 |
2318 |
17.1 |
.10 |
2594 |
19.1 |
.12 |
2823 |
20.8 |
.14 |
3027 |
22.3 |
.16 |
3217 |
23.7 |
.18 |
3378 |
24.9 |
.20 |
3433 |
25.3 |
*Cooling capacities were calculated using the following formula:(CFM x Total Air Capture %) / 126(CFM needed to cool 1kW @ 25ºF )= kW per rack.
Performance
DirectAire® |
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Static Loads |
Rolling Loads |
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U/S |
System Weight (lbs/ft2) |
Design Loads (lbs) |
Safety Factors |
10 Passes (lbs) |
10,000 Passes (lbs) |
Impact Loads (lbs) |
CFM (.10" H2O) |
Total Air Capture |
| Bolted Stringer | 13.0 |
2500 |
Min>2 |
2000 |
2000 |
200 |
2600 |
93% |
*System load tests are conducted following CISCA's Recommended Test Procedures with the exception of Design Load. Design Load is a CISCA Concentrated Load Test performed on actual understructure using yield pint and safety factors in place of deflection.



