Forum discussion
CI-v4 EAc5: Enhanced refrigerant management
For a CI project with minimal new HVAC equipment is the credit scope limited to equipment within the scope of the project only, or is there a hurdle below which base building equipment must comply (as in option 1 of v3 EAc1.3?)
Many of our projects only have supplemental cooling for servers and UPS.
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How can I determine the leakage rate of my equipment?
What is the required timeline for completing a CFC phase-out for this credit?
The refrigerant type I need to enter is missing from the credit form. What should I do?
Are HCFC or HFC refrigerants considered CFC-based refrigerants?
Ashwini Arun
Senior Sustainability ManagerWSP
LEEDuser Expert
61 thumbs up
August 29, 2017 - 10:53 am
Michael,
All base building and existing refrigerant-using equipment that serve the project space need to be included in the credit calculations. Even if the project scope only includes installation of CRAC units, you would need to include all base building equipment that will serve your project space. Only small systems with less than 0.5 pounds of refrigerant are exempt from this credit.
Peter Elliott
Senior AssociatePerkins Eastman
1 thumbs up
August 1, 2018 - 4:19 pm
Do we have to include Base Building units if our tenant area is only receiving chilled water? There is no refrigerant coming into our space.
Casey Cullen-Woods
Associate, SustainabilityThornton Tomasetti
12 thumbs up
January 16, 2020 - 2:11 pm
Yes- If the tenant space is being served by the base building equipment, it should be included.
Eric Bautista
Head of Energy & Environmental ManagementEB Project Management | Green Building Consultants
18 thumbs up
February 25, 2020 - 8:58 pm
Hi Casey, just an added query. LEED reviewer commented below:
"It is noted that the project is served by central base building chillers; however, it appears that the base building chillers with full capacity are included in the calculation. For future projects, the project team must include a weighted average calculation
based on both downstream and upstream equipment."
What is the weighted average they are referring?
Courtney Royal
Sr. Sustainability ConsultantTaitem Engineering
50 thumbs up
September 17, 2021 - 11:38 am
I recieved the same comment regarding the weighted average calculation, what did you end up doing in your submission?
Dustin Stephany
Sustainable Building CoordinatorUniversity of Florida
6 thumbs up
February 17, 2022 - 3:15 pm
Did we recieve any feedback regarding upstream and downstream calculations?