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NC-2009 EAc4:Enhanced Refrigerant Management

Using only 2 splits (with R-410).

It is used in a project two HVAC systems (Split) in two areas of approximately 22.82 square feet, the total project area measures 27,857 square feet. The air conditioning equipment work with 1 and 1.5 tonnes at 2.18 and 2.94 pounds per ton respectively, these values ​​do not get to complete the credit. Other projects use more than two of these equipments with equipment of chilled water system and I have been able to meet the credit. I think the impact on this second project is bigger than the first that does not meet the credit because more equipment are used. Can i meet the credit highlighting that only use 2 equipment in a small area compared to the whole project?

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Ante Vulin
Sustainability Manager
YR&G
LEEDuser Basic Member
55 thumbs up

Tue, 07/17/2012 - 13:15

Lorena, I am not aware of an exception for projects with only a small amount of air-conditioned space. My only thought would be that there may be an alternate location available for the outdoor portion of the split systems, which would shorten the run between the indoor and outdoor units and possibly lower the required refrigerant charge.

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