Optimizing Hyperscale Facilities: A Guide from Premium Data Center Rear Door Cooling Solution Provider EXTRCOOL

Rear Door, Buffer Tank, Chiller, Dry Cooler: The Four-Part Closed Loop Behind PUE 1.26

This guide from EXTRCOOL addresses hyperscale thermal management with rear door heat exchangers that capture heat at the rack exhaust, enabling cabinet-by-cabinet density upgrades without disrupting room airflow. Each system pairs the door unit—with internal fans and high-efficiency copper coils—with a coolant buffer tank, dedicated chiller module and outdoor dry cooler forming a self-contained closed loop. Standard 19-inch mounting supports phased retrofits, hot-swappable maintenance and row-by-row expansion. Field results show facility PUE falling from about 1.58 to 1.26 in retrofit scenarios, and below 1.05 with full CDU and manifold infrastructure. EXTRCOOL provides one-stop liquid cooling solutions.

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Area 51, NV, USA

EXTRCOOL INDUSTRY LIMITED

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