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
Ante Vulin
Sustainability ManagerYR&G
80 thumbs up
September 20, 2012 - 6:47 pm
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.