Table 1. Points for reducing water useMeet the percentage reduction requirements above.
Appliance and process water
Install equipment within the project scope that meets the minimum requirements in Table 2, 3, 4, or 5 . One point is awarded for meeting all applicable requirements in any one table. All applicable equipment listed in each table must meet the standard. Retail projects can earn a second point for meeting the requirements of two tables.
To use Table 2, the project must process at least 120,000 lbs (57 606 kg) of laundry per year.
Table 2. Compliant commercial washing machines
|Washing machine||Requirement (IP units)||Requirement (SI units)|
|On-premise, minimum capacity 2,400 lbs (10 886 kg) per 8-hour shift||Maximum 1.8 gals per pound *||Maximum 7 liters per 0.45 kilograms *|
To use Table 3, the project must serve at least 100 meals per day of operation. All process and appliance equipment listed in the category of kitchen equipment and present on the project must comply with the standards.
Table 3. Standards for commercial kitchen equipment
|Kitchen equipment||Requirement (IP units)||Requirement (SI units)|
|Undercounter||ENERGY STAR||ENERGY STAR or performance equivalent|
|Stationary, single tank, door||ENERGY STAR||ENERGY STAR or performance equivalent|
|Single tank, conveyor||ENERGY STAR||ENERGY STAR or performance equivalent|
|Multiple tank, conveyor||ENERGY STAR||ENERGY STAR or performance equivalent|
|Flight machine||ENERGY STAR||ENERGY STAR or performance equivalent|
|Batch (no drain connection)||≤ 2 gal/hour/pan including condensate cooling water||≤ 7.5 liters/hour/pan including condensate cooling water|
|Cook-to-order (with drain connection)||≤ 5 gal/hour/pan including condensate cooling water||≤ 19 liters/hour/pan including condensate cooling water|
|Countertop or stand||≤ 1.5 gal/hour/panincluding condensate cooling water||≤ 5.7 liters/hour/pan including condensate cooling water|
|Roll-in||≤ 1.5 gal/hour/pan including condensate cooling water||≤ 5.7 liters/hour/pan including condensate cooling water|
Food waste disposer
|Disposer||3-8 gpm, full load condition; 10 minute automatic shutoff or 1 gpm, no-load condition||11–30 lpm, full load condition; 10-min automatic shutoff or 3.8 lpm, no-load condition|
|Scrap collector||Maximum 2 gpm makeup water||Maximum 7.6 lpm makeup water|
|Pulper||Maximum 2 gpm makeup water||Maximum 7.6 lpm makeup water|
|Strainer basket||No additional water usage||No additional water usage|
To use Table 4, the project must be a medical or laboratory facility.
Table 4. Compliant laboratory and medical equipment
|Lab equipment||Requirement (IP units)||Requirement (SI units)|
|Reverse-osmosis water purifier||75% recovery||75% recovery|
|Steam sterilizer||For 60-inch sterilizer, 6.3 gal/U.S. tray
For 48-inch sterilizer, 7.5 gal/U.S. tray
|For 1520-mm sterilizer, 28.5 liters/DIN tray
For 1220-mm sterilizer, 28.35 liters/DIN tray
|Sterile process washer||0.35 gal/U.S. tray||1.3 liters/DIN tray|
|X-ray processor, 150 mm or more in any dimension||Film processor water recycling unit|
|Digital imager, all sizes||No water use|
To use Table 5, the project must be connected to a municipal or district steam system that does not allow the return of steam condensate.
Table 5. Compliant municipal steam systems
|Steam condensate disposal||Cool municipally supplied steam condensate (no return) to drainage system with heat recovery system or reclaimed water
|Reclaim and use steam condensate||100% recovery and reuse|
© Copyright U.S. Green Building Council, Inc. All rights reserved.