Water use reduction leed
Employ strategies that in aggregate use 20 less water than the water use baseline calculated for the building (not including irrigation) after meeting the Energy Policy Act of 1992 fixture performance requirements.
Residential fixtures, fittings, and appliances Current baseline (imperial units) Current baseline (metric units) Residential toilets.6 (gpf 6 liters per flush (lpf) Except blow-out fixtures: 13 lpf Residential lavatory (bathroom) faucets.2 (gpm) at 60 psi 4 lpm.5 lpm at 4 bar (58 psi.Tray For 1520-mm sterilizer,.5 liters/DIN tray For 1220-mm sterilizer,.35 liters/DIN tray Sterile process washer.35 gal/U.S.Some of these fittings and fixtures may be outside the tenant space (for Commercial Interiors) or project boundary (for New Construction).Automatic commercial ice makers.All newly installed toilets, urinals, private lavatory faucets, and showerheads that are reduction of fossil fuel subsidies eligible for labeling must be WaterSense labeled (or a local equivalent for projects outside the.S.).Nonresidential buildings, mixed-use buildings, and multifamily residential buildings four stories or more For new buildings and buildings undergoing major renovations as part of the project, reduce indoor water usage by an average of 20 from a baseline.
Based on tenant occupancy requirements, employ strategies that in aggregate use 30 less water than the water use baseline calculated for the tenant space (not including irrigation) after meeting Energy Policy Act of 1992 fixture performance requirements.
Calculate the baseline according to the commercial and/or residential baselines outlined below15.
Updated 7/1/2015, updated 1/27/2017 - modified flow fixture calculation to allow for savings on total daily water use from non-default duration (v03).
Standards for processes Process Requirement Discharge water temperature tempering Where local requirements limit discharge temperature of fluids into drainage system, use tempering device that runs water only when equipment discharges hot water OR Provide thermal recovery heat exchanger that cools drained discharge water below code-required.
Exception: showers that emit recirculated nonpotable water originating from within the shower compartment while operating are allowed to exceed the maximum as long as the total potable water flow does not exceed the flow rate as specified above.Showerheads.5 (gpm) at 80 (psi) per shower stall *.5 lpm at 5 bar (58 psi).For the fixtures and fittings listed in Table 1, as applicable to the project scope, reduce water consumption by 20 from the baseline.Reduce xture potable water usage to a level equal to or below water use baseline, calculated as 120 of the water usage that would result if 100 of the total building xture count were outtted with plumbing xtures that meet the Energy Policy Act.Points for reducing water use Percentage reduction Points (BD C) Points (Schools, Retail, Hospitality, Healthcare) Points (ID C) Points (CI Retail) Points (CI Hospitality) Option.Residential toilets.6 (gpf 6 liters per flush (lpf except blow-out fixtures: 13 lpf, residential lavatory (bathroom) faucets.2 (gpm) at 60 psi 4 lpm.5 lpm at 4 bar (58 psi private applications only (hotel or motel bon de réduction camaieu guest rooms, hospital patient rooms).0 lpm.If the building does not have separate metering for each water use (fixture use, process use, irrigation and other uses the water use reduction achievements can be demonstrated for.1 with calculations.Schools, Retail, and Healthcare projects can earn a second point for meeting the requirements of two tables.Performance For building water use, confirm that calculations are up to date.The baseline usage is based on the requirements of the United States Energy Policy Act of 1992 and subsequent rulings by the Department of Energy, the requirements of the Energy Policy Act of 2005, and the fixture performance standards in the 2006 editions of the.
WE Credit.1 (1 point 10 reduction in indoor plumbing fixture and fitting potable water use from the leed for Existing Buildings: O M baseline.
In addition to EPAct requirements, the American Society of Mechanical Engineers standard for public lavatory faucets.5 GPM at 60 PSI (2.0 LPM at 4 bar (58 PSI) (asme A112.18.1-2005).
Appliances not listed are not subject to any additional requirements.
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