What Is In-Row Cooler?_
An in-row cooler is a precision cooling unit positioned directly in the row of racks, drawing hot exhaust air from the rear of the servers and discharging cooled air into the cold aisle or directly to the rack intakes. This close-coupled design reduces the distance air travels, improving cooling efficiency and allowing higher power densities than traditional perimeter cooling. In GPU data centers, in-row coolers are often used to manage the intense heat loads from high-density racks.
Technical Details
In-row coolers typically use chilled water or refrigerant to remove heat, with fans that modulate speed based on temperature sensors. They are installed in a standard rack footprint (e.g., 600 mm wide) and can be placed every few racks depending on heat load and airflow requirements. The units must be connected to facility chilled water loops or a dedicated condenser system, with proper piping and condensation management. Cooling capacity is specified by the OEM and varies with supply water temperature and airflow.
How Leviathan Systems Works with In-Row Cooler
Leviathan Systems field crews install in-row coolers as part of rack row assembly, ensuring proper alignment with GPU racks and connecting them to facility chilled water lines. We also verify airflow direction and temperature setpoints during commissioning to prevent hot spots in high-density GPU rows.
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