Why Your Liquid Cooling Investment Needs Dedicated Power Protection
Vertiv, Monday, September 7th, 2026
Vertiv argues liquid cooling CDUs need dedicated UPS protection, since losing pump power can overheat GPUs in seconds.
Vertiv warns that when coolant distribution unit pumps lose power, high-power chips can hit thermal limits in under a second, yet most liquid cooling deployments lack dedicated backup power.
Sharing an IT UPS or relying on generators is risky because VFD-driven pumps bring inrush currents, harmonic distortion, poor power factor and undervoltage sensitivity.
The Vertiv Liebert APM2 UPS addresses these with an active front-end rectifier, tight voltage and frequency regulation, zero transfer time and overload capacity for motor starts. Testing with CoolChip CDU 1350 units triggered no faults.