Heat is the enemy. Precision is the answer.

Comfort AC cools people. Data centers need something built for machines.

A server rack can dissipate as much heat as a small oven, continuously, forever. Ordinary air conditioning is designed for human comfort — it strips out too much humidity, isn't rated for continuous high-sensible-heat loads, and fails under the density a data center produces. Precision cooling is engineered specifically to hold tight temperature and humidity around the clock.

In India the challenge is amplified: high ambient temperatures, humidity and dust all work against you, so cooling capacity and air filtration must be specified with real margin.

Cooling approaches

The right approach depends on density and room shape:

• CRAC / CRAH — room-level precision units; the workhorse of most facilities.
• In-row cooling — units placed between racks for higher, targeted density.
• Rear-door heat exchangers — cooling at the back of the rack itself.
• Chilled-water plant — chillers and cooling towers for large facilities.
• Liquid / immersion cooling — essential for dense AI/GPU deployments.

Containment beats brute tonnage

The single biggest efficiency win isn't more cooling — it's better airflow. Hot and cold aisle containment stops hot exhaust from mixing with cold supply, so every unit of cooling does more work. Paired with blanking panels and proper floor management, containment lowers your PUE and lets you run fewer, smaller units.

Cooling for AI and high density

GPU and AI workloads pack far more power — and heat — into each rack than traditional IT. Air cooling alone often can't keep up beyond a certain density, which is why direct-to-chip and immersion liquid cooling are moving from exotic to mainstream. If AI is anywhere on your roadmap, the cooling design should anticipate it now.

Sizing basics

• Heat load ≈ IT load in kW (1 kW of power ≈ 1 kW of heat).
• Cooling (TR) ≈ IT load (kW) ÷ 3.517, plus ~25% margin (1 TR = 3.517 kW).
• Add redundancy (N+1) so a unit can fail or be serviced without overheating.

Estimate cooling with the sizing calculator →