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If you manage a data center or an in-house server room, you have probably run into situations like these.<\/p>\n
\u201cThe temperature is low enough, but the AC units keep running at full output.\u201d
\n\u201cOvercooling keeps happening even during hours when server traffic is low.\u201d<\/p>\n
Because a server room operates around the clock,
\nHVAC accounts for a very high share of its power consumption in summer and winter alike (35~50% of total power).
\nThe problem is that more cooling than necessary (overcooling) occurs constantly,
\nleading to enormous energy waste.<\/p>\n
\u200b<\/span><\/p>\n Unlike ordinary office spaces, server rooms are prone to overcooling because of the following characteristics.<\/p>\n \u2460 Cooling patterns centered on a \u2018fixed setpoint temperature\u2019<\/b><\/span><\/p>\n Server rooms typically run on<\/span><\/p>\n \u201cKeep it at 23\u2103 at all times\u201d<\/span><\/p>\n<\/li>\n \u201cAlways run reheat and cooling in parallel\u201d<\/span><\/p>\n<\/li>\n<\/ul>\n fixed control schemes like these.<\/span><\/p>\n As a result, HVAC output stays the same even when server load is low.<\/span><\/p>\n \u200b<\/span><\/p>\n \u2461 Server load fluctuations are not reflected<\/b><\/span><\/p>\n Server room temperature moves with changes in server load (traffic, Batch jobs, overnight jobs, and so on),<\/span><\/p>\n but traditional control methods are unaware of this.<\/span><\/p>\n \u200b<\/span><\/p>\n \u2462 Temperature sensing location issues<\/b><\/span><\/p>\n If temperature is measured only at the cold air supply (Cold Aisle),<\/span><\/p>\n readings can come in lower than the actual temperature around the server equipment, causing overcooling.<\/span><\/p>\n \u200b<\/span><\/p>\n \u2463 AC units operated individually<\/b><\/span><\/p>\n A server room has multiple AC units installed,<\/span><\/p>\n but the units often operate independently, unaware of each other’s status.<\/span><\/p>\n As a result, overcooled and overloaded units end up mixed together, increasing energy losses.<\/span><\/p>\n \u200b<\/span><\/p>\n AI-based HVAC control enables adjustments far more precise than simple ON\/OFF.<\/span><\/p>\n The key is to understand the specific characteristics of the server room and run heating and cooling \u2018only as much as needed\u2019.<\/span> \u2714 With AI HVAC control applied, operations work like this.<\/b><\/span><\/p>\n \u200b<\/span><\/p>\n \u2460 Real-time collection of temperature, humidity, and AC unit status data<\/b><\/span><\/p>\n Cold\/Hot Aisle temperatures<\/span><\/p>\n<\/li>\n Server load (as indirect indicators)<\/span><\/p>\n<\/li>\n AC unit output<\/span><\/p>\n<\/li>\n Humidity changes<\/span><\/p>\n<\/li>\n<\/ul>\n and more are monitored together.<\/span><\/p>\n \u200b<\/span><\/p>\n \u2461 Keeping the target temperature range tight<\/b><\/span><\/p>\n Example: maintain between 22~24\u2103 \u2192 no sharp cooling at 22.5\u2103.<\/span><\/p>\n \u200b<\/span><\/p>\n \u2462 Automatically correcting HVAC output as server load changes<\/b><\/span><\/p>\n Load decreases: output eased gently to prevent overcooling<\/span><\/p>\n<\/li>\n Load increases: preemptive cooling suppresses temperature spikes<\/span><\/p>\n<\/li>\n<\/ul>\n \u200b<\/span><\/p>\n \u2463 \u2018Balanced control\u2019 across multiple AC units<\/b><\/span><\/p>\n To prevent any single unit from being overloaded,<\/span><\/p>\n AC unit rotation and load-distribution control are applied.<\/span><\/p>\n Q. Why does overcooling occur so often in server rooms?<\/b><\/span><\/p>\n A. Because fixed setpoints, insufficient load awareness, and sensing location issues cause the system to run more cooling than is actually needed.<\/span><\/p>\n \u200b<\/span><\/p>\n Q. Can AI optimize server room HVAC?<\/b><\/span><\/p>\n A. Yes, it can.<\/span><\/p>\n By analyzing temperature, operating data, and load changes together,<\/span><\/p>\n it can reduce overcooling with a \u201ccool only as much as needed\u201d approach.<\/span><\/p>\n \u200b<\/span><\/p>\n Q. Does the cooling equipment need to be replaced?<\/b><\/span><\/p>\n<\/span>Why does overcooling happen so often in server rooms?<\/span><\/h2>\n
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So what changes when AI steps in?<\/h2>\n
![\"\"](\"http:\/\/test.daliworks.net\/wp-content\/uploads\/2025\/11\/industrial-HVAC-control-dashboard-2-scaled-1.jpg\")
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