As the world’s most flexible and reliable direct expansion data center cooling system, the Liebert DS Direct Expansion Cooling System improves data center efficiency and protection. The system uses the industry’s most advanced thermal controls and features a modular design, multiple compressor options and easy service access.
Liebert DS data center cooling system provides efficient, precise, reliable control of room temperature, humidity and airflow. The flexible Liebert DS offers high energy efficiency, user-friendly Liebert iCOM unit controls, a modular frame, front service access, and multiple compressor and fan options. Liebert DS is offered in downflow models from 35-105kW (10-30 tons) capacities and upflow models in 35-105kW (10-30 tons) capacities. Cooling types include air, water/glycol and GLYCOOL™.
Note: Liebert is now Vertiv
Liebert DS Direct Expansion Cooling System Benefits
- Highly energy efficient
- Exceeds the most stringent government efficiency requirements with NEMA premium efficiency motors
- Offers energy efficient variable speed EC fans on downflow configurations
- Flexible cooling capacity via variable capacity compressors
- Requires only front access for service
- Installs easily due to modular frame construction
- Brings high-level supervision with Liebert iCOM controls, allowing networking of multiple mission-critical cooling units
- Variable capacity control for ultimate control and reliability.
- Redundancy through dual refrigeration circuits
Liebert DS Direct Expansion Cooling System Specifications
| Models | Total Nominal Capacity kBtuh[kW] | Net Sensible Capacity kBtuh [kW]* | Nominal Airflow [CFM] | Height (in) | Width (in) | Depth (in) | Weight (lbs) |
| Liebert DS, DS035A, 35kW | 119.4 [35] | 136.4 [40] | 5200 | 76 | 73 | 35 | 1920 |
| Liebert DS, DS042A, 42kW | 143.3 [42] | 154.7 [45.3] | 6200 | 76 | 73 | 35 | 1470 |
| Liebert DS, DS053A, 53kW | 143.3 [53] | 215.7 [63.2] | 8000 | 76 | 98 | 35 | 1920 |
| Liebert DS, DS070A, 70kW | 238.8 [70] | 255.6 [74.9] | 9600 | 76 | 98 | 35 | 1970 |
| Liebert DS, DS077A, 77kW | 262.7 [77] | 275.1 [80.6] | 11,000 | 76 | 98 | 35 | 2020 |
| Liebert DS, DS105A, 105kW | 358.2 [105] | 338.3 [99.1] | 13,700 | 76 | 132 | 35 | 2660 |
For more information about Liebert/Vertiv cooling solutions,
call 800-876-9373 or email [email protected].