In order to achieve this credit, permanent water meters can be installed also for "Boiler with aggregate projected annual water use of 100,000 gallons (378 500 liters) or more, or boiler of more than 500,000 BtuH (150 kW)". If there are no boilers but water-water heat pumps (total heat power 235 kW).
Best Regards
Francesco Passerini
R2M Solution Srl16 thumbs up
February 19, 2018 - 5:16 am
Sorry the question was not completed...
If there are no boilers but water-water heat pumps (total heat power 235 kW), is that a problem or can the water meter be applied for the heat pump water loop in order to achieve this credit? The loop provides heating in winter and cooling in summer.
Dionisio Franca
DirectorWoonerf Inc.
30 thumbs up
May 29, 2018 - 5:32 am
Hi Francesco, it is my opinion that if the heat source is not a boiler but does the same a boiler would do at this case (to provide hot water for the HVAC systems), measuring the water usage of the heat source (heat pump in this case) would be acceptable.
Joanna Switzer
Sustainability Project ManagerAtkins
59 thumbs up
October 26, 2020 - 3:11 pm
Hi - Francesco - By any chance has your project undergone its Design phase LEED certification review or had this compliance approach informally validated by the Project's assigned LEED coach? Asking as I have a project with nearly identical design (multiple reverse chiller/combined water to water heat pump units that function as boilers for heating mode, individual units <150KW, but combined are >150KW ) .