WATER EFFICIENCY Flashcards by Veronique Gravel

PREREQUISITE : Indoor Water Use Reduction (Required)
INTENT (2)

To reduce indoor potable water consumption and preserve no and low cost potable water resources.

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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

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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.

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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

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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.

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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)

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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

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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

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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

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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

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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

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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)

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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

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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

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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

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PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 4. Standards for appliances
FOR ?

Retail and Hospitality Only

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PREREQUISITE : Indoor Water Use Reduction (Required)
PART 2: Appliance and Process Water Use

Table 5. Standards for processes
FOR ?

Retail and Hospitality Only

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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

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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

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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

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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

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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

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CREDIT : Indoor Water Use Reduction
INTENT

To reduce indoor potable water consumption and preserve no and low-cost potable water resources.

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CREDIT OR PREREQUISITE ?#
Toilet

PREREQUISITE
1.6 gpf

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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