CRAC Cooling Systems Explained

CDW vs CHW vs DX Precision Cooling

Data centres, industrial facilities and telecommunications environments rely on precision cooling systems to maintain stable temperatures and protect critical infrastructure.

Three of the most common CRAC cooling technologies include:

• CDW (Condenser Water)
• CHW (Chilled Water)
• DX (Direct Expansion)

Each system offers different advantages depending on facility size and cooling requirements.

CDW CRAC Systems

CDW cooling systems are typically used in large data centres and industrial environments where heat loads are very high.

They rely on condenser water loops and cooling towers to remove heat from critical environments.

👉 Read the full guide on CDW CRAC systems

CHW CRAC Systems

CHW systems rely on central chilled water plants to provide cooling capacity for large buildings and infrastructure environments.

These systems are commonly installed in large enterprise data centres and industrial facilities.

👉 Read the full guide on CHW CRAC systems

DX CRAC Systems

DX CRAC units use refrigerant-based cooling technology and are commonly installed in server rooms and telecommunications environments.

👉 Read the full guide on DX CRAC systems

Why CRAC Maintenance Is Critical

Regardless of the cooling system type, preventative maintenance is essential to ensure reliable cooling performance and protection of critical infrastructure.

Maintenance programs typically include:

• airflow inspections
• coil cleaning
• environmental monitoring
• refrigerant or water loop inspections

Facilities across Brisbane, Sydney and Melbourne rely on preventative servicing to maintain reliable cooling infrastructure.

👉 Learn more about CRAC unit maintenance services