Everybody calls these CRACs. Half the time they’re not. And if you’re planning an AI retrofit, getting that distinction wrong can send you down the wrong mechanical path. CRAH vs CRAC is one of the most common mix-ups we run into, and it’s an understandable one. Both...
RDHx vs CRAH is the question we get from almost every facilities team that’s hit a density wall. Your CRAH units have kept the room comfortable for a decade. Then rack densities start climbing — 30, 50, 80 kW and beyond — and the room-level approach gets increasingly...
Passive RDHx: use the airflow you already have. Active RDHx: actively manage the airflow you need. Passive vs active RDHx is a decision that gets skipped more often than it should. Once a facilities team has settled on rear door heat exchangers as the right...
Immersion cooling sounds simple: put the servers in dielectric fluid and remove the heat. The real decision starts with what that fluid does next. Single-phase immersion cooling and two-phase immersion cooling both submerge your hardware directly in a dielectric fluid...
