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No-Cooling Tower for full credit? Option 2- Optimize Water Use for Cooling- 100% Reduction

CS-v4.1 WEc3: Optimize Process Water Use
posted by Grace Friedhoff on Feb 24, 2022, 3:08 pm

I am working on a C&S project that has a baseline system designated for the building using ASHRAE 90.1-2016 Appendix G Table G3.1.1 that includes a cooling tower (system 7) AND there is no...

Last reply: Marelle Davey, Feb 7, 2024, 11:56 am

Cooling tower cycles calculation

CS-v4.1 WEc3: Optimize Process Water Use
posted by Julio Fernandez Amodia on May 23, 2023, 8:17 am

Hi to all,

I am currently calculating the maximum number of cycles so to estimate the number of points achieved. I am a bit confused regarding this calculation since not many explanations...

Last reply: Maeve Donohue, Jun 8, 2023, 6:46 pm

Eligible subsystems for option 3 in v4.1

CS-v4.1 WEc3: Optimize Process Water Use
posted by Landry Watson on May 4, 2023, 12:59 pm

Option 3 discusses reduction in process water through non-potable water sources.  Then goes on to define elible systems as...(from ref guide)

Process water uses eligible for...

Last reply: Maeve Donohue, May 9, 2023, 7:11 pm

Switch Optimize Process Water use V4.1

CS-v4.1 WEc3: Optimize Process Water Use
posted by Michaël Briffaz on Dec 12, 2022, 8:22 am

Hi Everyone,

For a C&S project in LEED V4, I'm thinking to switch "Cooling Tower Water" in V4.1 "Optimize...

Last reply: Marelle Davey, Mar 20, 2023, 12:38 pm

District cooling

CS-v4.1 WEc3: Optimize Process Water Use
posted by on Mar 16, 2020, 8:30 am

Hello,

does anyone have experience with district cooling related to option 3? What type of DC system is compliant? And what does specifically "recycled alternative water" stand for?

...

Last reply: , Mar 16, 2020, 9:13 am

Water-less Cooling Tower

CS-v4.1 WEc3: Optimize Process Water Use
posted by John Bello on Apr 12, 2019, 6:25 am

Our cooling system does not use any water. Instead we are planning to use a R410-a refrigerant. Would this classify for full compliance with Option 2 or Option 3. Also, if we manage 20% of our...