WATER EFFICIENCY Flashcards
PREREQUISITE : Indoor Water Use Reduction (Required)
INTENT (2)
To reduce indoor potable water consumption and preserve no and low cost potable water resources.
PREREQUISITE : Indoor Water Use Reduction (Required)
REQUIREMENTS 2PART
+ 2 PART FOR WICH 2
PART 1 : Building Water Use
PART 2 : Appliance and Process Water Use
PART 2.1 : Standards for appliances
PART 2.2 : Standards for processes
Retail and Hospitality Only
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
REQUIREMENTS
GENERAL 3
- For the fixtures and fittings listed in Table 1, as applicable to the project scope, reduce aggregate water consumption by 20% from the baseline. Base calculations on the volumes and flow rates shown in Table 1.
2.All newly installed toilets, urinals, private lavatory faucets, and showerheads that are eligible for labeling must be WaterSense labeled (or a local equivalent for projects outside the U.S.). - Projects where fixtures or fixture fittings are not within the tenant spaces are exempt from this prerequisite.
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
REQUIREMENTS
GENERAL
reduce aggregate water consumption by X% from the baseline.
LABEL
20%
WaterSense
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
REQUIREMENTS
GENERAL
Projects where fixtures or fixture fittings are not within the tenant spaces are ..
exempt from this prerequisite.
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
Table: Baseline water consumption of fixtures and fittings
TOILET
URINAL
T: 1.6 gallons per flush (gpf)
U: 1.0 (gpf)
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
Table: Baseline water consumption of fixtures and fittings
Public lavatory (restroom) faucet
Private lavatory faucet*
Kitchen faucet (excluding faucets used exclusively for filling operations)
0.5 gpm at 60 psi all others except private applications
2.2 gpm at 60 psi
2.2 gpm at 60 psi
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 1 : Building Water Use
Table: Baseline water consumption of fixtures and fittings
SHOWERHEAD
2.5 gpm at 80 psi per shower stall
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
REQUIREMENT : / EXCEPTION
Install appliances, equipment, and processes within the project scope that meet the requirements listed in the tables below. Existing appliances intended for reuse in the project are not required to meet the requirements
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 2. Standards for appliances
Residential clothes washers
Commercial clothes washers
ENERGY STAR or performance equivalent
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 2. Standards for appliances
Residential dishwashers (standard and compact)
ENERGY STAR or performance equivalent
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 2. Standards for appliances
Prerinse spray valves
≤ 1.3 gpm (4.9 lpm)
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 2. Standards for appliances
Ice machine
ENERGY STAR or performance equivalent and use either air-cooled or closed-loop cooling, such as chilled or condenser water system
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 3. Standards for processes
Heat rejection and cooling
No once-through cooling with potable water for any equipment or appliances that reject heat
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 3. Standards for processes
Cooling towers and evaporative condensers : EQUIP WITH (3)
- makeup water meters
- conductivity controllers and overflow alarms
- efficient drift eliminators that reduce drift to maximum of 0.002% of recirculated water volume for counterflow towers and 0.005% of recirculated water flow for cross-flow towers
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 4. Standards for appliances
FOR ?
Retail and Hospitality Only
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 5. Standards for processes
FOR ?
Retail and Hospitality Only
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 4. Standards for appliances
DISHWASHER (5)
Undercounter ≤ 1.6 gal/rack
Stationary, single tank, door
≤ 1.4 gal/rack
Single tank, conveyor
≤ 1.0 gal/rack
Multiple tank, conveyor ≤ 0.9 gal/rack
Flight machine ≤ 180 gal/hour
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 4. Standards for appliances
FOOD STEAMER (2)
Batch
Cook-to-order
Batch ≤ 6 gal/hour/pan
Cook-to-order ≤ 10 gal/hour/pan
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 4. Standards for appliances
COMBINATION OVEN (2)
Countertop or stand
Roll-in
Countertop or stand ≤ 3.5 gal/hour/pan
Roll-in ≤ 3.5 gal/hour/pan
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 5. Standards for processes
Discharge water temperature tempering (3)
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 maximum discharge temperatures while simultaneously preheating inlet makeup water OR If fluid is steam condensate, return it to boiler
PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use
Table 5. Standards for processes
Venturi-type flow-through vacuum generators or aspirators
Use no device that generates vacuum by means of water flow through device into drain
CREDIT : Indoor Water Use Reduction
INTENT
To reduce indoor potable water consumption and preserve no and low-cost potable water resources.
CREDIT OR PREREQUISITE ?#
Toilet
PREREQUISITE
1.6 gpf
CREDIT OR PREREQUISITE ?#
urinal
+baseline
PREREQUISITE
1.0 gpf
CREDIT OR PREREQUISITE ?#
public lavatory
+baseline
PREREQUISITE
0.5 gpm at 60 psi** all others except
private applications
CREDIT OR PREREQUISITE ?#
private lavatory
PREREQUISITE
2.2 gpm at 60 psi
CREDIT OR PREREQUISITE ?#
Kitchen faucet
PREREQUISITE
2.2 gpm at 60 psi
CREDIT OR PREREQUISITE ?#
Showerhead
PREREQUISITE
2.5 gpm at 80 psi per shower stall
CREDIT OR PREREQUISITE ?#
Residential clothes washers
PREREQUISITE
ENERGY STAR
CREDIT OR PREREQUISITE ?#
Commercial clothes washers
+requiriments 2
PREREQUISITE
ENERGY STAR
CREDIT
Maximum 1.8 gals per pound
CREDIT OR PREREQUISITE ?#
Residential dishwashers
PREREQUISITE
ENERGY STAR
CREDIT OR PREREQUISITE ?#
Prerinse spray valves
+baseline
PREREQUISITE
≤ 1.3 gpm (4.9 lpm)
CREDIT OR PREREQUISITE ?#
Ice machine
PREREQUISITE
ENERGY STAR
CREDIT OR PREREQUISITE ?
process Heat rejection and cooling
PREREQUISITE
CREDIT OR PREREQUISITE ?
process Cooling towers and evaporative condensers
PREREQUISITE
CREDIT OR PREREQUISITE ?#
kitchen equipment : dishwasher (5)
PREREQUISITE Retail and Hospitality Only
Undercounter ≤ 1.6 gal/rack
Stationary, single tank, door
≤ 1.4 gal/rack
Single tank, conveyor
≤ 1.0 gal/rack
Multiple tank, conveyor ≤ 0.9 gal/rack
Flight machine ≤ 180 gal/hour
CREDIT Retail and Hospitality Only
ENERGY STAR
CREDIT OR PREREQUISITE ?#
kitchen equipment : food steamer (2)
batch
cook to order
PREREQUISITE Retail and Hospitality Only
Batch ≤ 6 gal/hour/pan
Cook-to-order ≤ 10 gal/hour/pan
CREDIT Retail and Hospitality Only
Batch (no drain connection) ≤ 2 gal/hour/pan including condensate cooling water
Cook-to-order (with drain connection) ≤ 5 gal/hour/pan including condensate cooling water
CREDIT OR PREREQUISITE ?#
kitchen equipment : combination oven (2)
Countertop or stand
Roll-in
PREREQUISITE Retail and Hospitality Only
Countertop or stand ≤ 3.5 gal/hour/pan
Roll-in ≤ 3.5 gal/hour/pan
CREDIT Retail and Hospitality Only
Countertop or stand
≤ 1.5 gal/hour/panincluding
condensate cooling water
Roll-in ≤ 1.5 gal/hour/pan including
condensate cooling water
CREDIT OR PREREQUISITE ?
process requirement
Discharge water temperature tempering
PREREQUISITE Retail and Hospitality Only
CREDIT OR PREREQUISITE ?
process requirement
Venturi-type flow-through vacuum generators or
aspirators
PREREQUISITE Retail and Hospitality Only
CREDIT OR PREREQUISITE ? #
kitchen equipment : food waste disposer (4)
Disposer :
Scrap collector
Pulper Maximum
Strainer basket
CREDIT Retail and Hospitality Only
Disposer : 3-8 gpm, full load condition, 10
minute automatic shutoff; or 1 gpm,
no-load condition
Scrap collector
Maximum 2 gpm makeup water
Pulper Maximum 2 gpm makeup water
Strainer basket
No additional water usage
CREDIT OR PREREQUISITE ?
Compliant laboratory and medical equipment
CREDIT
CREDIT OR PREREQUISITE ?
Compliant municipal steam systems
CREDIT
CREDIT : Indoor Water Use Reduction
Table 1. Points for reducing water use
% reduction/Points
for ci/r/h
25% 2
30% 4
35% 6
40% 8
45% 10
50%
CI : 12
R: n/a
H: 11
CREDIT : Indoor Water Use Reduction
REQUIREMENT
GENERAL (2)
Additional potable water savings can be earned above the prerequisite level using alternative water sources. Include fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be outside the tenant space (for Commercial Interiors) or project boundary (for New Construction). Points are awarded according to Table 1.
AND
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.
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 1 : Points for reducing water use
Additional A savings can be earned above the prerequisite level using alternative water sources. Include fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be B (for Commercial Interiors) or project boundary (for New Construction). Points are awarded according to Table 1
A: potable water
B : outside the tenant space
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Install equipment within the project scope that meets the minimum requirements in Table 2, 3, 4, or 5 . X point is awarded for meeting all applicable requirements in any one table. All applicable equipment listed in each table must meet the standard. Y projects can earn a Z point for meeting the requirements of two tables.
X:One
Y: Retail
Z: SECOND
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 2. Compliant commercial washing machines
To use Table 2, the project must process at least X of laundry per year.
120,000 lbs (57 606 kg)
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 2. Compliant commercial washing machines
CALCUL based on?
Based on equal quantities of heavy, medium, and light soil laundry
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 2. Compliant commercial washing machines
WASHING MACHINE / REQUIREMENT
On-premise, minimum capacity 2,400 lbs (10 886 kg) per 8-hour shift
Maximum 1.8 gals per pound *
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment
the project must serve at least X meals per day of operation
100
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment
DISHWASHER
ENERGY STAR
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment
Food steamer (2)
batch
Cook-to-order
Batch (no drain connection)
≤ 2 gal/hour/pan including condensate cooling water
Cook-to-order (with drain connection)
≤ 5 gal/hour/pan including condensate cooling water
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 3. Standards for commercial kitchen equipment
Food waste disposer (4)
Disposer :
Scrap collector
Pulper
Strainer basket
Disposer : 3-8 gpm, full load condition, 10
minute automatic shutoff; or 1 gpm,
no-load condition
Scrap collector
Maximum 2 gpm makeup water
Pulper Maximum 2 gpm makeup water
Strainer basket
No additional water usage
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment
Reverse-osmosis water purifier
75% recovery
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment
Steam sterilizer (2)
For 60-inch sterilizer,
For 48-inch sterilizer
For 60-inch sterilizer, 6.3 gal/U.S. tray
For 48-inch sterilizer, 7.5 gal/U.S. tray
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment
Sterile process washer
0.35 gal/U.S. tray
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 4. Compliant laboratory and medical equipment
X-ray processor, 150 mm or more in any dimension
Digital imager, all sizes
Film processor water recycling unit
No water use
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 5. Compliant municipal steam systems
REQUIREMENT
must be connected to a municipal or district steam system that does not allow the return of steam condensate.
CREDIT : Indoor Water Use Reduction
REQUIREMENT
PART 2 : Appliance and process water
Table 5. Compliant municipal steam systems
STEAM SYSTEM : STANDARD (2)
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