Vertiv Liebert Direct Evaporative Freecooling Unit, 150-600+kW

The Vertiv Liebert Direct Evaporative Freecooling Unit delivers the lowest capital and operating costs, with a mechanical PUE of less than 1.1, streamlined installation and the industry’s lowest peak power consumption. Options are available for supplemental DX (direct expansion) or chilled water cooling sized for full or trim cooling.

Liebert Direct Evaporative Free Cooling Units offer the lowest large-scale thermal management system efficiencies possible. Advanced algorithms and unique design features provide a level of control not easily achievable on competitive systems. Liebert iCOM™ control algorithms continuously process readings from the rack inlet sensors to ensure optimal airflow through the system, while supply air sensors are used to control the unit cooling capacity. Dampers and exhaust fans are automatically adjusted by the Liebert iCOM unit control, which also harmonizes the operation of multiple air handling units to eliminate conflicts in temperature, airflow and humidity.

Liebert Direct Evaporative Freecooling Unit Applications:

• Banking, Financial and Insurance

• Data Center/Colocation/Hosting

• Education

• Government

• Healthcare

• Retail and Wholesale

Liebert Direct Evaporative Freecooling Unit Features:

• DX or chilled water secondary cooling options sized for full or trim cooling 

• EC fan or direct drive fans with VFD options, in single or fan array configurations  

• Integrated bypass damper

• Self-optimizing controls with machine-to-machine communications and advanced algorithms

• Design minimizes required electrical infrastructure

Liebert Direct Evaporative Freecooling Unit Benefits:

• PUE less than 1.1 

• Lower power consumption through an integrated bypass damper

• Minimal water usage

• Self-optimizing controls reduce over-cooling and under-cooling

• Less risk of hot spots, through advanced controls and rack inlet sensors

• Finely tuned controls for more consistent unit supply air temperature and minimized swings across component ranges

• Controls teamwork modes

• Typically eliminates need for raised floor

• Harmonize multiple cooling units for higher efficiency and protection. 

• Low kW per unit - downsizes electrical infrastructure

• Controls require little if any customization 

• Simplified access to real-time data and trending

Liebert Direct Evaporative Freecooling System Control Strategies:

• Flooded room with hot aisle containment

• Coordinate units for standby operation to prevent fighting

• Monitor server fan power consumption to minimize site power consumption

Liebert Direct Evaporative Freecooling Unit Control Strategies:

• Unit capacity controlled to supply air setpoint range

• Power metering on supply fan, pumps, and exhaust fan for energy optimization

• Fan speed controlled by rack inlet temperature sensors

Alpine Power Systems is an approved platinum distributor of Vertiv UPS Systems.  Alpine can provide battery services on all Vertiv batteries including engineering, installation, preventative maintenance, monitoring and recycling. Contact us today for pricing and technical inquiries.