Defaults reflect this space type, including its typical equipment/metabolic load of ~17,000 BTU/hr. Same engine as the main calculator.
| Cooling load | — |
Electronics convert essentially all input power to heat: BTU/hr = equipment watts × 3.412. A single 5 kW rack needs ~17,000 BTU/hr (1.4 tons) regardless of whether the room is 80 or 200 sq ft. The example below assumes one 5 kW rack; substitute your measured UPS output.
This load never sleeps — comfort ACs cycling year-round die young, and winter cooling is still required (low-ambient kits). Standard practice is N+1 redundancy: two units, each able to carry the full load, alternating. Use the commercial calculator for occupied IT spaces and the server-room guide for the full method.
A typical server room / it closet (~120 sq ft) needs about 19,613 BTU/hr — a 2 ton unit in moderate US conditions, or 2.5 ton in hot Indian conditions (26,936 BTU/hr).
A typical Indian server room / it closet of ~120 sq ft carries roughly 26,936 BTU/hr in hot conditions — a 2.5 ton. Adjust with the calculator above for your exact room and city.
About 0.285 tons per kW (1 kW × 3,412 BTU ÷ 12,000). A 10 kW room needs ~2.85 tons of continuous cooling before redundancy.
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