Category of cooling for process load

Narguess Kh

LEEDuser Basic Member

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June 3, 2021

How should I categorize the cooling required for IT equipment in data halls. Considering that the cooling in the actual building is provided by air cooled chillers, which are listed in Table 6.8.1-3 of ASHRAE 90.1. Can I assume that, they are not process load and determine the COP based on table G3.5.3. Regarding the number of chillers does it need to be as identical as proposed building.

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Thu, 06/03/2021 - 16:09

They are a process load. Table G3.5.3 is the efficiency required of the baseline system. The number of chillers is determined by Table G3.1.3.7.

Narguess Kh

LEEDuser Basic Member

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Thu, 06/03/2021 - 16:22

Do you mean that, the cooling for the IT equipment is process load and should be identical in both baseline and proposed building?

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Thu, 06/03/2021 - 16:35

Sorry the IT equipment is clearly a process load. The cooling for it generally is not.