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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

Central Plant Question

Scenario: Campus new construction projects which are connecting to an existing central plant for heating and cooling. The reference guide and DES guideline are clear that you must consider the refrigerant in the central plant (or District Energy System) when doing the calculation. One of the variables in the EAc4 calculation is service Life of equipment. These values are provided for new equipment by the ref guide and ASHRAE. Question: For the existing central plant equipment, should the service life be the full rated service life as published by ASHRAE or a prorated life accounting for the current age of the equipment (since it is not new)?

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Wed, 05/11/2011 - 18:45

The GBCI responded to my question and said that I should use the Reference Guide and ASHRAE values and not the actual age of the equipment. Wanted to share this information with everyone.

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