Cooling
Coolant distribution units
A CDU is pumps plus a heat exchanger. In-rack units serve one cabinet, in-row units a few, facility-scale units a hall. Liquid-to-liquid needs building pipework and performs best; liquid-to-air is self-contained and weaker. Capacity depends on flow and on approach temperature: the closer the two loops must run, the less one unit can carry.
Source: https://www.vertiv.com/en-us/products-catalog/thermal-management/high-density-solutions/vertiv-coolchip-cdu/ Checked 2026-09-18
the Vertiv CoolChip CDU catalogue page was opened on 2026-09-18 and rates each model at a stated approach temperature, which is what the body describes
| Figure | Value | Source |
|---|---|---|
| Vertiv CoolChip CDU 1350 | 1,350 kW at 4 deg C approach; the CoolChip range runs 70 kW to 2,300 kW | https://www.vertiv.com/en-us/products-catalog/thermal-management/high-density-solutions/vertiv-coolchip-cdu/ read from the Vertiv product catalogue page on 2026-09-18; a manufacturer's own published rating |
| OCP Deschutes | 2 MW, 3 deg C approach, 80 psi, 0.2 micron side-stream filter | https://www.opencompute.org/products/736/vertiv-coolchip-cdu-project-deschutes-5 Opened 2026-10-06: the OCP product page for the Vertiv CoolChip CDU (Project Deschutes 5) lists 2 MW at 3 deg C ATD, 80 psi available pressure and 0.2 micron side-stream filtration (primary filtration is 25 or 44 micron). |
| Deschutes solution provider (OCP listing) | Vertiv | https://www.opencompute.org/products/736/vertiv-coolchip-cdu-project-deschutes-5 OCP's current product listing names Vertiv as its only solution provider; this is not a complete list of all Project Deschutes prototype builders |