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We plan on pursuing this credit only if we need to do so to meet our certification target, i.e. if another credit we are counting on gets rejected. How late can we apply for this credit?

I'm working on a renovation project and we'll be keeping some of the existing equipment. Shoud we include these systems in our calculations?

Which portions of a VRF/VRV system should be considered for this credit?


For a split system, does the cooling capacity refer to the cooling power of the interior device (evaporator) or of the outdoor unit (condenser)?

What is the required timeline for completing a CFC phase-out for EAc4?

How can I document a longer equipment life (20 or 30 years) than what is listed in the LEED Reference Guide?

Do the requirements apply to portable fire extinguishers or only permanently installed building-wide fire suppression systems?

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NC-2009 EAc4:Enhanced Refrigerant Management

Phase-out Plans for conversion

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Scott Davis
Mechanical Designer
LEEDuser Basic Member
7 thumbs up

I am working on an addition to an existing building, the addition is attempting certification. The exsting building and the chiller plant do comply with EAp3, but, 2 chillers are HCFC-22 and raise the ARI to above 100. In order to comply with EAc4 the 2 chillers will have to be changed over to R-407c or be replaced. Question is, will it be required to be retrofitted or replaced before construction is completed or can it be completed within a 5-year timeline? Thanks for your help. Scott

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

Thu, 09/20/2012 - 22:47

The retrofit/replacement should be done before construction is completed. While a phase-out is allowed in the prerequisite, EAc4 is like other credits where the credit should be achieved as part of the LEED scope of work.

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