ENERGY STAR
ENERGY STAR Program Requirements
for Commercial Dishwashers
Partner Commitments
Following are the terms of the ENERGY STAR Partnership Agreement as it pertains to the manufacture
and labeling of ENERGY STAR qualified products. The ENERGY STAR Partner must adhere to the
following partner commitments:
Qualifying Products	
1.	Comply with current ENERGY STAR Eligibility Criteria, which define performance requirements and
test procedures for commercial dishwashers. A list of eligible products and their corresponding
Eligibility Criteria can be found at www.enerqvstar.gov/specifications.
2.	Obtain certification of ENERGY STAR qualification from a Certification Body recognized by EPA for
commercial dishwashers prior to associating the ENERGY STAR name or mark with any product. As
part of this certification process, products must be tested in a laboratory recognized by EPA to perform
commercial dishwasher testing.
Using the ENERGY STAR Name and Marks	
3.	Comply with current ENERGY STAR Identity Guidelines, which define how the ENERGY STAR name
and marks may be used. Partner is responsible for adhering to these guidelines and ensuring that its
authorized representatives, such as advertising agencies, dealers, and distributors, are also in
compliance. The ENERGY STAR Identity Guidelines are available at www.eneravstar.aov/loaouse.
4.	Use the ENERGY STAR name and marks only in association with qualified products. Partner may not
refer to itself as an ENERGY STAR Partner unless at least one product is qualified and offered for
sale.
5.	Provide clear and consistent labeling of ENERGY STAR qualified commercial dishwashers. The
ENERGY STAR mark must be clearly displayed on the top/front of the product, in product literature
(i.e., user manuals, spec sheets, etc.), on product packaging, and on the manufacturer's Internet site
where information about ENERGY STAR qualified models is displayed.
Verifying Ongoing Product Qualification	
6.	Participate in third-party verification testing through a Certification Body recognized by EPA for
commercial dishwashers.
7.	Comply with tests that EPA/DOE may conduct at its discretion on products that are referred to as
ENERGY STAR qualified. These products may be obtained on the open market, or voluntarily
supplied by Partner at the government's request.
Providing Information to EPA	
8. Provide unit shipment data or other market indicators to EPA annually to assist with creation of
ENERGY STAR market penetration estimates, as follows:
8.1. Partner must submit the total number of ENERGY STAR qualified commercial dishwashers
shipped in the calendar year or an equivalent measurement as agreed to in advance by EPA and
Partner. Partner shall exclude shipments to organizations that rebrand and resell the shipments
(unaffiliated private labelers).
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8.2.	Partner must provide unit shipment data segmented by meaningful product characteristics (e.g.,
type, capacity, presence of additional functions) as prescribed by EPA.
8.3.	Partner must submit unit shipment data for each calendar year to EPA or an EPA-authorized third
party, preferably in electronic format, no later than March 1 of the following year.
Submitted unit shipment data will be used by EPA only for program evaluation purposes and will be
closely controlled. Any information used will be masked by EPA so as to protect the confidentiality of
the Partner;
9.	Report to EPA any attempts by laboratories or Certification Bodies (CBs) to influence testing or
certification results or to engage in discriminatory practices.
10.	Notify EPA of a change in the designated responsible party or contacts within 30 days using the My
ENERGY STAR Account tool (MESA) available at www.enerqvstar.gov/mesa.
Performance for Special Distinction	
In order to receive additional recognition and/or support from EPA for its efforts within the Partnership, the
ENERGY STAR Partner may consider the following voluntary measures, and should keep EPA informed
on the progress of these efforts:
¦	Provide quarterly, written updates to EPA as to the efforts undertaken by Partner to increase
availability of ENERGY STAR qualified products, and to promote awareness of ENERGY STAR and
its message.
¦	Consider energy efficiency improvements in company facilities and pursue benchmarking buildings
through the ENERGY STAR Buildings program.
¦	Purchase ENERGY STAR qualified products. Revise the company purchasing or procurement
specifications to include ENERGY STAR. Provide procurement officials' contact information to EPA for
periodic updates and coordination. Circulate general ENERGY STAR qualified product information to
employees for use when purchasing products for their homes.
¦	Feature the ENERGY STAR mark(s) on Partner website and other promotional materials. If
information concerning ENERGY STAR is provided on the Partner website as specified by the
ENERGY STAR Web Linking Policy (available in the Partner Resources section of the ENERGY
STAR website), EPA may provide links where appropriate to the Partner website.
¦	Ensure the power management feature is enabled on all ENERGY STAR qualified displays and
computers in use in company facilities, particularly upon installation and after service is performed.
¦	Provide general information about the ENERGY STAR program to employees whose jobs are relevant
to the development, marketing, sales, and service of current ENERGY STAR qualified products.
¦	Provide a simple plan to EPA outlining specific measures Partner plans to undertake beyond the
program requirements listed above. By doing so, EPA may be able to coordinate, communicate,
and/or promote Partner's activities, provide an EPA representative, or include news about the event in
the ENERGY STAR newsletter, on the ENERGY STAR website, etc. The plan may be as simple as
providing a list of planned activities or milestones of which Partner would like EPA to be aware. For
example, activities may include: (1) increasing the availability of ENERGY STAR qualified products by
converting the entire product line within two years to meet ENERGY STAR guidelines; (2)
demonstrating the economic and environmental benefits of energy efficiency through special in-store
displays twice a year; (3) providing information to users (via the website and user's manual) about
energy-saving features and operating characteristics of ENERGY STAR qualified products; and (4)
building awareness of the ENERGY STAR Partnership and brand identity by collaborating with EPA
on one print advertorial and one live press event.
¦	Join EPA's SmartWay Transport Partnership to improve the environmental performance of the
company's shipping operations. The SmartWay Transport Partnership works with freight carriers,
shippers, and other stakeholders in the goods movement industry to reduce fuel consumption,
greenhouse gases, and air pollution. For more information on SmartWay, visit
www.epa.gov/smartwav.
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Join EPA's Climate Leaders Partnership to inventory and reduce greenhouse gas emissions. Through
participation, companies create a credible record of their accomplishments and receive EPA
recognition as corporate environmental leaders. For more information on Climate Leaders, visit
www.epa.gov/climateleaders.
Join EPA's Green Power Partnership. EPA's Green Power Partnership encourages organizations to
buy green power as a way to reduce the environmental impacts associated with traditional fossil fuel-
based electricity use. The partnership includes a diverse set of organizations including Fortune 500
companies, small and medium businesses, government institutions as well as a growing number of
colleges and universities. For more information on Green Power, visit www.epa.aov/areenpower.
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ENERGY STAR® Program Requirements
Product Specification for Commercial Dishwashers
Eligibility Criteria
DRAFT Version 1.2
Following is the Version 1.2 product specification for ENERGY STAR qualified commercial dishwashers.
A product shall meet all of the identified criteria if it is to earn the ENERGY STAR.
1) Definitions: Below are the definitions of the relevant terms in this document.
A.	Dishwashing Machine: A machine designed to clean and sanitize plates, glasses, cups, bowls,
utensils, and trays by applying sprays of detergent solution (with or without blasting media
granules) and a sanitizing final rinse.
B.	Under Counter Dishwasher: A machine with an overall height 38 inches or less, in which a rack of
dishes remains stationary within the machine while being subjected to sequential wash and rinse
sprays, and is designed to be installed under food preparation workspaces. Under counter
dishwashers can be either chemical or hot water sanitizing, with an internal booster heater for the
latter.
C.	Stationary Rack. Single Tank. Door Type Dishwasher: A machine in which a rack of dishes
remains stationary within the machine while subjected to sequential wash and rinse sprays. This
definition also applies to machines in which the rack revolves on an axis during the wash and
rinse cycles. Subcategories of stationary door type machines include: single and multiple wash
tank, double rack, pot, pan and utensil washers, chemical dump type and hooded wash
compartment ("hood type"). Stationary rack, single tank, door type models can be either chemical
or hot water sanitizing, with an internal or external booster heater for the latter.
D.	Single Tank Conveyor Dishwasher: A warewashing machine that employs a conveyor or similar
mechanism to carry dishes through a series of wash and rinse sprays within the machine.
Specifically, a single tank conveyor machine has a tank for wash water followed by a final
sanitizing rinse and does not have a pumped rinse tank. This type of machine may include a pre-
washing section before the washing section. Single tank conveyor dishwashers can be either
chemical or hot water sanitizing, with an internal or external booster heater for the latter.
E.	Multiple Tank Conveyor Dishwasher: A conveyor type machine that has one or more tanks for
wash water and one or more tanks for pumped rinse water, followed by a final sanitizing rinse.
This type of machine may include one or more pre-washing sections before the washing section.
Multiple tank conveyor dishwashers can be either chemical or hot water sanitizing, with an internal
or external booster heater for the latter.
F.	Hot Water Sanitizing (High Temp) Machine: A warewashing machine that applies potable hot
water to the surfaces of wares to achieve sanitization.
G.	Chemical Sanitizing (Low Temp) Machine: A warewashing machine that applies potable water and
a chemical sanitizing solution to the surfaces of wares to achieve sanitization.
H.	Product Family: Variations of one model are offered within a single product line with design
differences limited to: finish/color; length of pre-wash section, and orientation (e.g., corner, straight
through models). Individual models represented by a product family must have the same rinse
water and idle energy consumption.
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2) Scope:
A.	Included Products: Products that meet the definition of a Commercial Dishwasher as specified
herein are eligible for ENERGY STAR qualification, with the exception of products listed in Section
2.B. The following product types are eligible: undercounter; stationary rack, single tank, door type;
single tank conveyor; and multiple tank conveyor. Only those undercounter machines designed for
wash cycles of 10 minutes or less are eligible for ENERGY STAR. Pot, pan, and utensil machines
may qualify for ENERGY STAR under the stationary rack, single tank, door type requirements.
B.	Excluded Products: Flight-type machines are not eligible for ENERGY STAR under this
specification. Commercial dishwashers that include an optional manual rinse, after the final
sanitizing rinse, are in violation of current NSF Standards and therefore, are not eligible for
ENERGY STAR.
3) Qualification Criteria:
A. Energy and Water Efficiency Requirements:
Table 1: ENERGY STAR Requirements for Commercial Dishwashers
Machine Type
High Temp Efficiency
Requirements
Low Temp Efficiency
Requirements
Tank Heater
Idle Energy
Rate*
Water
Consumption
Tank Heater
Idle Energy
Rate*
Water
Consumption
Under Counter
< 0.90 kW
< 1.00 gal/rack
< 0.50 kW
< 1.70 gal/rack
Stationary Single
Tank Door**
<_1.0 kW
< 0.950 gal/rack
< 0.60 kW
<1.18 gal/rack
Single Tank
Conveyor
< 2.0 kW
< 0.700 gal/rack
< 1.6 kW
< 0.790 gal/rack
Multiple Tank
Conveyor
< 2.6 kW
< 0.540 gal/rack
< 2.0 kW
< 0.540 gal/rack
* Idle results should represent tank heater idle energy rate measured with door closed.
"""Includes pot, pan, and utensil machines.
B.	High/Low Temperature Machines: Machines designed to be interchangeable in the field from high
temp to low temp, and vice versa, shall meet both the high temp and low temp requirements of
Table 1 to qualify as ENERGY STAR.
C.	Calculations for Determining Gallons per Rack Results: The following calculations shall be used to
determine gallons per rack. These calculations are based on gallons per rack conversions
provided in the NSF Products and Service Listing for commercial dishwashers at www.nsf.org.
Conveyor Type
CSX 60
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GPR =
GPR =
Door Type
GPH X (WT + RT +DT + LT)
3600
Load Time= 5 seconds for straight through door-type dishwashers.
Load Time= 7 seconds for corner door-type dishwashers.
Load Time= 30 seconds for front load/unload dishwashers
Undercounter Type
GPH X (WT+RT+DT+LT)	
3600
Load time= 30 seconds for undercounter dishwashers.
WT= Wash Time in seconds.
LT= Load time.
RT= Rinse time in seconds.	qs= Maximum conveyor speed in
DT= Dwell time in seconds.	feet per minute
RL= Rack length, use 20x20 in.	GPH= Water use in gallons per hour.
C. Significant Digits and Rounding:
a.	All calculations shall be carried out with actual measured or observed values. Only the final
result of a calculation shall be rounded. Calculated results shall be rounded to the nearest
significant digit as expressed in the corresponding specification limit.
b.	Unless otherwise specified, compliance with specification limit shall be evaluated using exact
values without any benefit from rounding.
4) Test Requirements:
A.	Representative Models shall be selected for testing per the following requirements:
a.	For qualification of an individual product model, the representative model shall be equivalent to
that which is intended to be marketed and labeled as ENERGY STAR.
b.	For qualification of a product family, any model within that product family can be tested and
serve as the representative model.
B.	When testing commercial dishwashers, the following test methods shall be used to determine
ENERGY STAR qualification:
Table 2: Test Methods for ENERGY STAR Qualification
ENERGY STAR Requirement
Test Method Reference
Gallons per Rack (GPR)
NSF/ANSI 3-2007 Standard, Commercial Warewashing
Equipment
Idle Energy Rate - Undercounter
and Stationary Rack, Single Tank,
Door Type
ASTM Standard F1696, Standard Test Method for Energy
Performance of Single-Rack Hot Water Sanitizing, Door-
Type Commercial Dishwashing Machines*
Idle Energy Rate - Single and
Multiple Tank Rack Conveyor
Dishwashers
ASTM Standard F1920, Standard Test Method for Energy
Performance of Rack Conveyor, Hot Water Sanitizing,
Commercial Dishwashing Machines*
* Although the titles of the ASTM test procedures listed above specifically call out hot water sanitizing machines
the idle energy rate portion is also applicable, and shall be used, for chemical sanitizing machines.
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5)	Effective Date: The ENERGY STAR Commercial Dishwasher Specification shall go into effect on
October 11, 2007. To qualify for ENERGY STAR, a product model shall meet the ENERGY STAR
specification in effect on the date of manufacture. The date of manufacture is specific to each unit and
is the date (e.g., month and year) on which a unit is considered to be completely assembled.
6)	Future Specification Revisions: EPA reserves the right to change the specification should
technological and/or market changes affect its usefulness to consumers, industry, or the environment.
In keeping with current policy, revisions to the specification are arrived at through industry
discussions. In the event of a specification revision, please note that the ENERGY STAR qualification
is not automatically granted for the life of a product model.
A.	ASTM Test Standard Review: EPA plans to revisit this specification once the revision processes
for ASTM F1696 and ASTM F1920 are complete. These test methods will address energy
consumption in various modes of operation as well as water consumption.
B.	Review of Idle Energy Requirements: Within two years of this specification becoming effective,
EPA will review idle energy data to determine whether the limits provided in Table 1 provide for
sufficient differentiation in the marketplace. If it is determined that revisions are needed, EPA will
work closely with industry stakeholders to develop appropriate new levels.
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