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NC-v4 EAp2:Minimum energy performance

axial fan cooling tower

G3.1.3.11 states: “The heat rejection device shall be an axial fan cooling tower with two-speed fans, and shall meet the performance requirements of Table 6.8.1G.”

In Table 6.8.1G I see two kinds of axial fan cooling towers: open-circuit and closed circuit. Which one shall I select?

Best Regards

Francesco

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 01/23/2018 - 17:11

Open Circuit.
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Ciaran McCabe
Director
Passive Dynamics Sustainability Consultants
LEEDuser Basic Member
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Thu, 09/05/2019 - 15:36

Hi Marcus, What is the choice of open circuit based on?
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 09/05/2019 - 16:47

I don't recall. Perhaps it is in the User's Manual? I do know that the value in 6.8.1G of 38.2 gpm/hp is what we check for as reviewers.

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