Number of cycles

Tristan Roberts

Representative

Vermont House of Representatives

LEEDuser Expert

7780 thumbs up

Wed, 02/19/2014 - 15:22

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

LEEDuser Basic Member

0 thumbs up

Wed, 02/19/2014 - 15:30

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, LEED

USGBC

LEEDuser Expert

225 thumbs up

Wed, 02/19/2014 - 15:51

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

Representative

Vermont House of Representatives

LEEDuser Expert

7780 thumbs up

Wed, 02/19/2014 - 15:22

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

LEEDuser Basic Member

0 thumbs up

Wed, 02/19/2014 - 15:30

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, LEED

USGBC

LEEDuser Expert

225 thumbs up

Wed, 02/19/2014 - 15:51

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?

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