Cooling
Cooling from 7 to 140 kW per rack
Air for general-purpose racks, direct-to-chip liquid for GPUs and a shared cooling plant with free cooling. Warm water allows operation without compressors for most of the year.
75-90%
of heat is removed by cold plates on accelerators, switches and processors
30-40 °C
supply to the rack circuit; up to 45 °C for platforms that allow it
1.15-1.3
design annual site PUE with dry coolers
20-25%
heat exchanger margin for the heat of southern Uzbekistan and Kazakhstan
Modes
What to choose for your rack density
| Density | Method | Where we use it |
|---|---|---|
| 7-15 kW | in-row air conditioners, aisle containment | container, micro-module |
| 15-40 kW | high-capacity in-row air conditioners, rear-door heat exchangers | micro-module, prefabricated data center |
| 40-80 kW | direct-to-chip liquid via CDU, residual heat to air | prefabricated data center |
| 80-140 kW | direct-to-chip liquid, supply at 30-45 °C, cooling plant with free cooling | prefabricated data center, power blocks + hall |
Liquid circuit
How liquid cooling works
Two circuits
A glycol rack circuit and a site circuit, with redundant CDUs with flow control between them.
Cooling plant
Adiabatic dry coolers or free-cooling chillers in N+1, variable-speed pumps.
No quota-controlled refrigerants
The main circuit runs on water and glycol; air conditioner circuits are shipped under nitrogen and charged on site.
Winter heating
When load is off, modules are heated and drainage is protected from freezing.
PUE is a design annual value and depends on the site climate and the share of liquid cooling.
Request
Tell us about your site
IT capacity and rack type, redundancy and autonomy requirements, location and climate, availability of a grid connection, target launch date. Within a week we will prepare a concept, an equipment list and a schedule.