Well, I?m going over a year back into the archives, but hopefully someone can help. I?m modeling a project with 500 Ton Carrier Evergreen Water-Cooled Screw Chillers and would like to take advantage of the part-load efficiency benefits. It appears that Dan Nall posted custom efficiency curves for this specific equipment a while back, but when I use them in eQUEST my cooling energy gets tripled (from 800 MWh to 2450 MWh) as compared to the default eQUEST curves for Water-cooled Screw chillers. Does anyone have experience using these curves effectively? Am I misinterpreting the curve data? Are they intended for something other than eQUEST inputs? Or are the default eQUEST curves unrealistically efficient?

Thanks for any input,

Dan Russell