My project is the renovation and addition of a cruise terminal. There are three chilled water loops serving the building inside the LEED boundary. Part is an old CHW plant with ice storage that serves other buildings outside the LEED boundary, and the other two loops are from an existing air-cooled chiller and a new one for the addition.
Is it reasonable to serve the baseline and proposed areas with cost neutral purchased CHW where the design is served by the old CHW plant with ice storage and follow the App. G requirements for the other systems served by the on-site air-cooled chillers (baseline system 6)?
Also, is it correct that any spaces that would be covered by G3.1.1 exception b, will be gas furnace heat in the areas served by the DES system?
Tyler Thumma
7GroupLEEDuser Expert
67 thumbs up
April 21, 2021 - 11:39 am
Yes, you're correct that you would use the same cooling source between the Baseline and Proposed for areas served by purchased CHW vs on-site cooling, resulting in a mixture of both.
Yes, System 3 and 4 would both use a fossiul fuel furnace when the cooling source is purchased CHW per G3.1.1.3.2(c).