The Power Experts

Liebert EconoPhase Pumped Refrigerant Economizer

Liebert EconoPhaseThe Liebert Econophase Pumped Refrigerant Economizer works with the Liebert DSE cooling unit and Liebert MC Outdoor Condenser to significantly improve data center efficiency – without bringing in outside air and without using water. The EconoPhase unit automatically switches to economizer operation during periods of lower outdoor temperature to reduce or eliminate compressor run time. The EconoPhase is an option for a Liebert DSE™ air-cooled system.

Note: Liebert is now Vertiv

Liebert EconoPhase Benefits

  • Industry-leading efficiency – PUE as low as 1.05 in full economizer mode
  • Hassle-free operation
  • Next generation Liebert® iCOM™ controls for automatic failure diagnostics and self-optimization
  • First ever pumped refrigerant economizer – Refrigerant carries 2x as much heat as water, 40x as much heat as air
  • No water and no costly water treatment required
  • No outside air contamination, and no dampers and louvers to maintain
  • Instant changeover to economizer mode, even for short time periods, to optimize free cooling hours
  • Automatic failure diagnostics, pump unit serviceable without loss of cooling
  • Supports sustainability and cost savings initiative

EconoPhase Specifications

Height (in) Width (in) Depth (in ) Weight (lbs)
40 1/8 in 36 3/16 in  42 1/8 in 340-347 lbs 
For more information about Liebert/Vertiv cooling solutions,
call 800-876-9373 or email .