What is the number of cycles necessary to achieve 1 point? 10?
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EBOM-v4 WEc3: Cooling tower water use
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Number of cycles
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Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11478 thumbs up
February 19, 2014 - 10:22 am
Jonathan, first, there is no 1-point threshold. Second, I don't think the way you framed your question applies exactly to how the credit is written. See the language above. Or, please clarify your question.
Jonathan Miller
February 19, 2014 - 10:30 am
Hi Tristan, In Table 2. Points for Cooling Tower Water Cycles it states:
Maximum number of cycles achieved without exceeding any filtration levels or affecting operation of condenser water system (up to maximum of 10 cycles) - 2 points
Achieve a minimum 10 cycles by increasing the level of treatment in condenser or make-up water - 3 points
OR Achieve the number of cycles for 1 point and use a minimum 20% recycled nonpotable water - 3 points
My confusion exists within the last statement of the credit language which specifies "achieve the number of cycles for 1 point..."
Thanks!
Batya Metalitz
Technical Director, LEEDUSGBC
LEEDuser Expert
318 thumbs up
February 19, 2014 - 10:51 am
Hi Jonathan - the language is a bit confusing, since the number of cycles available for 1 point varies by project.
Say a project must get to 6 cycles for 1 point, based on their water composition - for two points, they can either increase the level of treatment, to safely reach 10 cycles, OR they can stay at 6 cycles, but substitute 20% of their potable water for a nonpotable water source (of equal or better composition in terms of dissolved solids, etc.), so that only 80% the water used in those 6 cycles is coming from the municipal potable water supply. Does that make more sense?
Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11478 thumbs up
February 19, 2014 - 10:22 am
Jonathan, first, there is no 1-point threshold. Second, I don't think the way you framed your question applies exactly to how the credit is written. See the language above. Or, please clarify your question.
Jonathan Miller
February 19, 2014 - 10:30 am
Hi Tristan, In Table 2. Points for Cooling Tower Water Cycles it states:
Maximum number of cycles achieved without exceeding any filtration levels or affecting operation of condenser water system (up to maximum of 10 cycles) - 2 points
Achieve a minimum 10 cycles by increasing the level of treatment in condenser or make-up water - 3 points
OR Achieve the number of cycles for 1 point and use a minimum 20% recycled nonpotable water - 3 points
My confusion exists within the last statement of the credit language which specifies "achieve the number of cycles for 1 point..."
Thanks!
Batya Metalitz
Technical Director, LEEDUSGBC
LEEDuser Expert
318 thumbs up
February 19, 2014 - 10:51 am
Hi Jonathan - the language is a bit confusing, since the number of cycles available for 1 point varies by project.
Say a project must get to 6 cycles for 1 point, based on their water composition - for two points, they can either increase the level of treatment, to safely reach 10 cycles, OR they can stay at 6 cycles, but substitute 20% of their potable water for a nonpotable water source (of equal or better composition in terms of dissolved solids, etc.), so that only 80% the water used in those 6 cycles is coming from the municipal potable water supply. Does that make more sense?