A Computer Room Air Handler (CRAH) is a cooling unit used to regulate the temperature and ensure optimal operating conditions for IT equipment. CRAH units are essential for cooling central IT …

Jun 10, 2025 · Computer room air handler (CRAH) units are another data center cooling device. The main difference between CRAH and CRAC units is how they cool their surrounding environments.

Dec 10, 2021 · The main difference between CRAC and CRAH cooling units is that CRAC units use refrigerants and compressors, whereas CRAH units use chilled water and control valves.

Feb 3, 2026 · A CRAC Unit transfers the heat from the system and ejects by only using the Refrigerant Cycle, whereas a CRAH Unit utilizes Chilled Water, the Refrigerant Cycle, and Condenser Water.

CRAH units are the preferred choice in hyperscale and large colocation environments due to their superior efficiency, scalability, and ability to integrate with economization systems.

Mission Critical CRAH’s are built to reduce your risk and meet data center challenges of today and beyond. The market-leading, high-performance cabinet design yields almost limitless possibilities to …

Compare CRAC and CRAH precision cooling systems for data centres. Learn how each works, their benefits, and which delivers better energy efficiency.

Jan 20, 2023 · A CRAH HVAC system blows air over cooling coils, similar to a CRAC system. But the main difference is these cooling coils are filled with chilled water instead of refrigerant.

The acronyms CRAH (pronounced “kraw”) and CRAC (pronounced “krak”) stand for Computer Room Air Handler and Computer Room Air Conditioner respectively. As is common knowledge, most facilities …

A computer room air handler (CRAH) differs from a CRAC unit because the air is cooled over a cooling coil filled with chilled water instead of using mechanical refrigeration.