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Cooling and Water

Economization

Economization uses favorable outdoor conditions to reduce mechanical cooling energy. The practical value depends on climate, air quality, humidity, water strategy, controls, and whether the system uses air-side, water-side, or refrigerant methods.

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Step-down transformer

A step-down transformer reduces voltage from a higher utility or distribution level to a lower facility voltage. Data center projects may use multiple transformation stages from transmission or sub-transmission down to medium-voltage and low-voltage distribution.

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White space

White space is the area where IT equipment is placed and revenue-generating compute capacity is typically delivered. It is different from support space, and the ratio between white space and total building area affects density and economics.

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Tier III

Tier III is concurrently maintainable infrastructure: each capacity component and distribution path can be removed for planned work without affecting operations. It is a common target for enterprise and colocation facilities, but certification depends on detailed design and operations.

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