Vertiv Liebert DSE Free-Cooling System: Specs and Service
The Vertiv Liebert DSE is a packaged pumped-refrigerant economizer (free-cooling) system for data centers, with capacities up to about 400 kW. It uses pumped-refrigerant economization to cut cooling energy substantially and eliminates water use, which is valuable in the Central Texas climate. Comp-Utility, a long-standing Vertiv distribution partner, specs, installs, and services the Liebert DSE across Central Texas.
What We Provide
Our Capabilities
Free-Cooling Design
We design DSE systems to maximize economization hours for your climate while holding data center tolerances.
Learn moreInstallation and Commissioning
We install, pipe, and commission the system and verify capacity and efficiency under load.
Learn moreMaintenance and Service
Preventative maintenance and 24/7 response keep the DSE efficient and reliable year-round.
Learn moreWaterless Efficiency
Cut Cooling Energy Without Using Water
The Liebert DSE uses pumped-refrigerant economization to deliver free cooling when outdoor conditions allow, cutting mechanical cooling energy substantially and lowering PUE, without consuming water.
In a water-conscious region like Central Texas, a waterless economizer is especially attractive. Comp-Utility designs the system to capture the most economization hours your climate offers.
Key Specifications
| Attribute | Vertiv Liebert DSE |
|---|---|
| Type | Packaged DX with pumped-refrigerant economization |
| Capacity | Up to ~400 kW |
| Economization | Pumped-refrigerant free cooling, waterless |
| Efficiency | Up to roughly 50% higher efficiency vs traditional DX |
| Form factor | Floor unit plus remote condenser |
| Typical applications | Data centers in suitable climates |
Specifications reflect the Liebert DSE product line; exact capacities and configurations vary by model. Contact us to confirm the current configuration for your project.
The Comp-Utility Difference
Why Comp-Utility?
Long-Standing Distribution Partner
As a long-standing distribution partner of Eaton, Schneider Electric, and Vertiv, we specify best-in-class systems and back them with factory-grade service.
Engineer-Owned and Operated
Comp-Utility is owned and operated by engineers, with licensed Texas Professional Engineers (P.E.) on staff. That rigor anchors every design, specification, and installation.
Turnkey, Single-Contract Partner
We sell, design, install, and maintain complete infrastructure end to end. One accountable team and one contract for power, cooling, distribution, and cabling.
24/7 Emergency Response and Preventative Maintenance
Our technicians provide preventative maintenance programs and 24/7 emergency response, with rapid on-site dispatch across Central Texas when facilities need us most.
Licensed, Certified & Recognized
We hold ourselves to the standards of the institutions we serve, from professional licensure and jobsite safety to the industry organizations that set the bar for mission-critical work.
Licensed Professional Engineers
State of Texas (TBPE)
OSHA 30 Certified
Field Technicians
AFCOM Member
Data center industry association
7x24 Exchange Member
Mission-critical infrastructure
Frequently Asked Questions
What is the Vertiv Liebert DSE?
The Liebert DSE is a packaged direct-expansion cooling system with pumped-refrigerant economization (free cooling), rated up to about 400 kW. It reduces mechanical cooling energy by using outdoor conditions to cool when possible, and it uses no water. It is widely deployed where data centers want significant efficiency gains without the water use of evaporative systems.
How does pumped-refrigerant economization work?
When outdoor temperatures are low enough, the DSE pumps refrigerant to reject heat without running the compressors at full capacity, providing free or partial free cooling. As conditions warm, it transitions smoothly to mechanical cooling. This automatic switching captures efficiency whenever the climate allows, lowering energy use and PUE over the year.
Why is a waterless system valuable in Central Texas?
Evaporative cooling saves energy but consumes significant water, which is a growing concern in Central Texas. The Liebert DSE achieves major efficiency gains through refrigerant economization without using water, avoiding water cost, treatment, and supply concerns. This makes it an attractive efficiency option for the region's climate and water situation.
How much energy can the DSE save?
By using free cooling whenever outdoor conditions permit, the DSE can deliver substantial cooling-energy savings versus traditional always-on mechanical DX, with manufacturer figures citing up to roughly 50% higher efficiency. Actual savings depend on the local climate and the number of economization hours. Comp-Utility models expected savings for your site.
How do I size a DSE system?
Sizing is based on the IT heat load, redundancy target, and climate, with units configured for the economization the site can capture. Comp-Utility calculates the heat load, recommends unit count and capacity for N+1 or greater redundancy, and designs the refrigerant piping and condenser placement for efficient operation.
Can the DSE be deployed redundantly?
Yes. DSE units are deployed in N+1 or greater configurations so the data center stays within tolerance during a unit failure or maintenance. Comp-Utility designs the cooling redundancy to match your tier and uptime goals and coordinates it with your power redundancy and the rest of the cooling system.
Who installs and services the Liebert DSE in Central Texas?
Comp-Utility, a long-standing Vertiv distribution partner, specs, installs, commissions, and maintains the Liebert DSE across Central Texas, including preventative maintenance and 24/7 emergency response. Call (512) 346-0999 or email sales@comp-utility.com.
What maintenance does the DSE require?
Maintenance includes refrigerant and pump checks, coil and condenser cleaning, fan inspection, economizer transition verification, and controls and setpoint checks. Keeping the economization function calibrated is key to capturing the energy savings. Comp-Utility provides scheduled service to maintain efficiency and reliability.