Ashrae 904 Pdf Upd

In alignment with global Kigali Amendment targets (phasing down HFCs), newer updates to Standard 904 now require users to include the cost of future refrigerant replacement or decommissioning. Older PDFs ignore this, leading to artificially low LCC for high-GWP refrigerants.

The most significant update is the 2025 edition, which expands the standard's purpose beyond direct energy use to encompass broader sustainability goals. Key changes include: ashrae 904 pdf upd

A: Yes. LEED references specific versions of ASHRAE standards. Check the LEED reference guide. However, using the very latest "UPD" is generally safer because LEED tends to adopt newer discount rate tables for Energy and Atmosphere (EA) credits. In alignment with global Kigali Amendment targets (phasing