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.	Prior to associating the ENERGY STAR name or mark with any product, obtain written
certification of ENERGY STAR qualification from a Certification Body recognized by EPA for
commercial dishwashers. As part of this certification process, products must be tested in a laboratory
recognized by EPA to perform commercial dishwasher testing. A list of EPA-recognized laboratories
and Certification Bodies can be found at www.enerqvstar.gov/testinqandverification.
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.enerqvstar.gov/loqouse.
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 in the U.S. and/or ENERGY STAR partner countries.
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, providing full cooperation and timely responses. EPA/DOE may also, at its
discretion, conduct tests 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	
7. Provide unit shipment data or other market indicators to EPA annually to assist with creation of
ENERGY STAR market penetration estimates, as follows:
7.1. 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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7.2.	Partner must provide unit shipment data segmented by meaningful product characteristics (e.g.,
type, capacity, presence of additional functions) as prescribed by EPA.
7.3.	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. If requested under the Freedom of Information Act (FOIA), EPA will argue that the
data is exempt. Any information used will be masked by EPA so as to protect the confidentiality of the
Partner.
8.	Report to EPA any attempts by recognized laboratories or Certification Bodies (CBs) to influence
testing or certification results or to engage in discriminatory practices.
9.	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, and communicate
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,
ENERGY STAR Program Requirements for Commercial Dishwashers - Partner Commitments	2

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greenhouse gases, and air pollution. For more information on SmartWay, visit
www.epa.gov/smartwav.
¦ 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.gov/qreenpower.
ENERGY STAR Program Requirements for Commercial Dishwashers - Partner Commitments

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ENERGY STAR® Program Requirements
Product Specification for Commercial Dishwashers
Eligibility Criteria
Version 2.0
Following is the Version 2.0 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) Definitions1: Below are the definitions of the relevant terms in this document.
A.	Dishwashing Machine: A machine designed to clean and sanitize plates, pots, pans, glasses,
cups, bowls, utensils, and trays by applying sprays of detergent solution (with or without blasting
media granules) and a sanitizing rinse.
Machine Types
B.	Stationary Rack Machine: A dishwashing 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.
a)	Under Counter: A stationary rack machine with an overall height of 38 inches or less,
designed to be installed under food preparation workspaces. Under counter dishwashers
can be either chemical or hot water sanitizing, with an internal or external booster heater for
the latter.
b)	Single Tank. Door Type: A stationary rack machine designed to accept a standard 20 inch x
20 inch dish rack which requires the raising of a door to place the rack into the wash/rinse
chamber. Closing of the door typically initiates the wash cycle. Subcategories of single
tank, stationary door type machines include: single rack, double rack, pot, pan and utensil
washers, chemical dump type and hooded wash compartment ("hood type"). Single tank,
door type models can be either chemical or hot water sanitizing, with an internal or external
booster heater for the latter.
c)	Pot. Pan, and Utensil: A stationary rack, door type machine designed to clean and sanitize
pots, pans, and kitchen utensils.
d)	Glasswashing: A stationary rack, under counter machine specifically designed to clean and
sanitize glasses.
C.	Conveyor Machine: A dishwashing machine that employs a conveyor or similar mechanism to
carry dishes through a series of wash and rinse sprays within the machine.
a)	Single Tank Conveyor: A conveyor machine that includes a tank for wash water followed by
a sanitizing rinse (pumped or fresh water). This type of machine does not have a pumped
rinse tank. This type of machine may include a prewashing section ahead of the washing
section and an auxiliary rinse section, for purposes of reusing the sanitizing rinse water,
between the power rinse and sanitizing rinse sections. Single tank conveyor dishwashers
can be either chemical or hot water sanitizing, with an internal or external booster heater for
the latter.
b)	Multiple Tank Conveyor: A conveyor type machine that includes one or more tanks for wash
1 Additional terms found throughout this document, and related to machine components and operation, are defined in
NSF 170-2010.
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water and one or more tanks for pumped rinse water, followed by a sanitizing rinse. This
type of machine may include a pre-washing section before the washing section and an
auxiliary rinse section, for purposes of reusing the sanitizing rinse water, between the power
rinse and sanitizing rinse section. Multiple tank conveyor dishwashers can be either
chemical or hot water sanitizing, with an internal or external booster heater for the latter.
c) Flight Type Conveyor: A conveyor machine where the dishes are loaded directly on the
conveyor rather than transported within a rack. This machine is also referred to as a
rackless conveyor.
Sanitation Methods
D.	Hot Water Sanitizing (High Temp) Machine: A machine that applies hot water to the surfaces of
dishes to achieve sanitization.
E.	Chemical Sanitizing (Low Temp) Machine: A machine that applies a chemical sanitizing solution
to the surfaces of dishes to achieve sanitization.
F.	Chemical Dump Type Machine: A low temp, stationary rack machine with a pumped recirculated
sanitizing rinse.
G.	Dual Sanitizing Machine: A machine designed to operate as either a high temp or low temp
machine.
Modes and Metrics
H.	Wash Mode: For stationary rack machines, the dishwasher is in wash mode when it is actively
running a cycle and is spraying wash water (i.e., water that is neither part of the sanitizing rinse,
post sanitizing rinse, nor the prewashing unit).
I.	Rinse Mode: For stationary rack machines, the dishwasher is in rinse mode when it is at the end
of the actively running cycle and is spraying hot water or chemical sanitizing rinse water or a post-
sanitizing rinse. If there is a post-sanitizing rinse, it shall be included in rinse mode.
J. Dwell Mode: For stationary rack machines, the dishwasher is in dwell mode when it is actively
running a cycle but is not in wash or rinse modes.
K. Idle Mode: For all dishwasher types, the dishwasher is in idle mode when it is not actively running
but is still powered on and ready to wash dishes at the required temperature.
L. Energy Saver Mode: A dishwasher is in energy saver mode if the dishwasher is manually
converted or, after inactivity, the dishwasher automatically converts to a setting that consumes
less energy than it does in idle mode (not all dishwashers have this feature).
M. Idle Energy Rate: The rate of energy consumed by the dishwasher while "holding" or maintaining
wash tank water at the thermostat(s) set point during the time period specified in the ENERGY
STAR Test Method for Commercial Dishwashers (Rev. May-2012).
Qualification Terms
N. Product Family: Variations of one model offered within a single product line with design
differences limited to: finish/color; length of pre-wash section, voltage, and orientation (e.g.,
corner, straight through models). Individual models represented by a product family must have
the same sanitizing and post sanitizing 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: under counter; single tank, door type; single
tank conveyor; multiple tank conveyor and flight type machines. Glasswashing machines; pot,
pan, and utensil machines; and dual sanitizing machines are also eligible. Only those under
counter machines designed for wash cycles of 10 minutes or less are eligible for ENERGY STAR.
This Version 2.0 specification only covers electric models.
B.	Excluded Products: Dishwashers intended for use in residential or laboratory applications are not
eligible for ENERGY STAR under this product specification. Steam, gas, and other non-electric
models cannot qualify for ENERGY STAR under this Version 2.0.
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
Idle Energy
Rate*
Water
Consumption**
Idle Energy
Rate*
Water
Consumption**
Under Counter
< 0.50 kW
<0.86 GPR
< 0.50 kW
< 1.19GPR
Stationary Single
Tank Door
<0.70 kW
<0.89 GPR
< 0.60 kW
< 1.18GPR
Pot, Pan, and
Utensil
< 1.20 kW
<0.58 GPSF
<_1.00 kW
<0.58 GPSF
Single Tank
Conveyor
< 1.50 kW
<0.70 GPR
< 1.50 kW
<0.79 GPR
Multiple Tank
Conveyor
< 2.25 kW
<0.54 GPR
<2.00 kW
<0.54 GPR
Single Tank
Flight Type
Reported
GPH <2.975x + 55.00
Reported
GPH <2.975x + 55.00
Multiple Tank
Flight Type
Reported
GPH <4.96x + 17.00
Reported
GPH <4.96x+ 17.00
* Idle results should be measured with the door closed and represent the total idle energy consumed by the
machine including all tank heater(s) and controls. Booster heater (internal or external) energy consumption should
not be part of this measurement unless it cannot be separately monitored per the ENERGY STAR Test Method
referenced in Section 4, below.
** GPR = gallons per rack; GPSF = gallons per square foot of rack; GPH = gallons per hour; x = sf of conveyor belt
(i.e., W*L) /min (max conveyor speed).
B.	User-Adjustable Conveyor Machines: Conveyor machines that offer multiple speeds adjustable
by the end user must meet the ENERGY STAR requirements using the maximum conveyor
speed setting tested to and certified to NSF/ANSI Standard 3. Water consumption values using
the maximum conveyor speed setting shall be used for qualification purposes. Water
consumption using the slowest conveyor speed shall also be reported to EPA.
C.	Dual Sanitizing Machines: As defined in Section 1, these machines shall meet both the high temp
and low temp requirements presented in Table 1, above, to qualify as ENERGY STAR.
D.	Dual Purpose Door Type Machines: Machines designed to be used either as a standard door
type machine or a pot, pan, and utensil machine shall meet the performance requirements for
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both of those sub categories.
E.	Post Sanitizing Machines: Machines offering a post sanitizing rinse will be evaluated for ENERGY
STAR qualification with the post sanitizing rinse turned on during testing. The final rinse water
consumption will include both sanitizing and post sanitizing rinses.
F.	Industry Standard Certifications: All machines shall be certified to the NSF/ANSI 3-2010
Standard, Commercial Warewashing Equipment.
G.	Significant Digits and Rounding:
a.	All calculations shall be carried out with directly measured (unrounded) values.
b.	Unless otherwise specified, compliance with specification limits shall be evaluated using
directly measured or calculated values without any benefit from rounding.
c.	Directly measured or calculated values that are submitted for reporting on the ENERGY
STAR website shall be rounded to the second decimal place.
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
Idle Energy Rate, GPH, GPR, and
GPSF (all machines)
ENERGY STAR Test Method for Commercial
Dishwashers (Rev. May-2012)
5) Effective Date: The ENERGY STAR Commercial Dishwasher Specification shall take effect on
February 1, 2013. To qualify for ENERGY STAR, a product model shall meet the ENERGY STAR
specification in effect on the model's date of manufacture. The date of manufacture is specific to each
unit and is the date 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.
ASTM Test Standard Review: EPA will revisit this specification once the revision processes for ASTM
F1696 and ASTM F1920 are complete to evaluate new performance requirements that capture total
machine energy consumption.
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liliKI
ENERGY STAR Program Requirements
Product Specification for Commercial Dishwashers
Test Method
(Rev. May-2012)
1	OVERVIEW
The following test method shall be used for determining product compliance with requirements in the
ENERGY STAR Eligibility Criteria for Commercial Dishwashers.
Note: Throughout this test method, "may" refers to an action that is voluntary and "shall" refers to an
action that is mandatory.
2	APPLICABILITY
This test method is applicable to commercial dishwashers, specifically: under counter; glasswashing;
single tank, door type; pot, pan and utensil; dual sanitizing rinse; single tank conveyor; multiple tank
conveyor and flight type machines. This test method may also be used to test machines that include a
post-sanitizing rinse. This test method is applicable to machines with electric, gas, or steam coil tank heat
and electric, gas, or steam booster heat but not for machines with steam injection tank or booster heat.
Note: This test method has not been validated for flight type machines, machines with a post-sanitizing
rinse, or machines with steam coil booster heaters.
3	DEFINITIONS
Unless otherwise specified, all terms used in this document are consistent with the definitions in the
ENERGY STAR Eligibility Criteria for Commercial Dishwashers Version 2.0.
Note: Dishwashing Machines are referred to as Dishwashers throughout this Test Method.
A) Acronyms, Abbreviations, and Units:
1)	ANSI: American National Standards Institute
2)	ASTM: American Society for Testing and Materials
3)	Btu: British Thermal Units
4)	cfm: Cubic feet per minute
5)	DOE: U.S. Department of Energy
6)	EPA: U.S. Environmental Protection Agency
7)	T: Degrees Fahrenheit
8)	ft: Feet
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9)	fP: Cubic feet
10)	h: Hour(s)
11)	in: Inch(es)
12)	in. H9O: Inches water
13)	in. Hq: Inches mercury
14)	kW: Kilowatt(s)
15)	kWh: Kilowatt-hour(s)
16)	jb: Pound(s)
17)	min: Minute(s)
18)	NSF: NSF International
19)	jdsi: Pounds per square inch
20)	psia: Pounds per square inch absolute
21)	psiq: Pounds per square inch gauge
22)	^R: Degrees Rankine
23)	s: Second(s)
24)	UUT: Unit Under Test
25)	V: Volt(s)
26)	W: Watt(s)
27)	Wh: Watt-hour(s)
B) General:
1) Warewashinq Machine Terminology
a)	Water heater: Water Heater is defined in NSF International/American National Standards
Institute (NSF/ANSI) 170-2010: Glossary of Food Equipment Terminology; Section 3.223.
b)	Booster Heater: Booster Heater is defined in NSF/ANS1 170-2010; Section 3.223.1.
c)	Sanitization: Sanitization is defined in NSF/ANS1 170-2010; Section 3.176.
d)	Sanitizing Solution: Sanitizing Solution is defined in NSF/ANS1 170-2010; Section 3.177.
e)	Washing: Washing is defined in NSF/ANS1 170-2010; Section 3.221.
f)	Fresh Water: Fresh Water is defined in NSF/ANS1 170-2010; Section 3.83.
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g)	Sanitizing Rinse: Sanitizing Rinse is defined in NSF/ANS1 170-2010; Section 3.173.
h)	Chemical Sanitizing Rinse: Chemical Sanitizing Rinse is defined in NSF/ANSI 170-2010;
Section 3.170.
i)	Hot Water Sanitizing Rinse: Hot Water Sanitizing Rinse is defined in NSF/ANSI 170-2010;
Section 3.171.
j) Pumped Rinse: Pumped Rinse is defined in NSF/ANS1 170-2010; Section 3.152.
k) Auxiliary Rinse: Auxiliary rinse is defined in NSF/ANS1 170-2010; Section 3.5.
I) Recirculating Sanitizing Rinse: Recirculating Sanitizing Rinse is defined in NSF/ANSI 170-
2010; Section 3.160.
m) Non-recirculating Pumped Sanitizing Rinse: Non-recirculating Pumped Sanitizing Rinse is
defined in NSF/ANS1 170-2010; Section 3.129.
n) Post-sanitizing Rinse: Post-sanitizing Rinse is defined in NSF/ANS1 170-2010; Section 3.172.
o) Prewashing Unit: Prewashing Unit is defined in NSF/ANS1 170-2010; Section 3.148.
p) Rack: Rack is defined in NSF/ANS1 170-2010; Section 3.155.
q) User Adjustable: A feature is user adjustable if it may be adjusted by the machine operator
without aid from a technician or manufacturer.
2) Test Method Terminology
a)	Ambient Temperature: Ambient Temperature is defined in NSF/ANS1 170-2010; Section 3.3.
b)	Flow Pressure: Flow Pressure is defined in NSF/ANS1 170-2010; Section 3.74.
c)	Line Pressure: Line Pressure is defined in NSF/ANS1 170-2010; Section 3.113.
d)	Rated Temperature: Rated Temperature is defined in American Society for Testing and
Materials (ASTM) F1920-11: Standard Test Method for Performance of Rack Conveyor,
Commercial Dishwashing Machines; Section 3.1.7.
e)	Tank Heater Idle Rate: Tank Heater Idle Rate is defined in ASTM F1920-11; Section 3.1.9.
f)	Uncertainty: Uncertainty is defined in ASTM F1920-11; Section 3.1.10.
4 TEST CONDUCT
A)	Testing Order: The sanitizing and post-sanitizing rinse water consumption test shall be run before
the idle energy consumption test. The Dishwasher shall be operated at the same settings (water
level, cycle times, sanitizing mode, etc.) for both the water consumption test and the idle energy
consumption tests.
B)	Machines with a post-sanitizing rinse shall separately measure and report the water consumption
with the feature turned on and turned off.
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C)	Machines designed to be interchangeable in the field from high temp and low temp (i.e. Dual
Sanitizing Machines), and vice versa, shall be tested at both settings.
D)	Machines designed to be used either as a Dishwasher or a pot, pan, and utensil washer shall be
tested at both settings.
E)	If a machine includes an Energy Saver Mode, it shall be turned off or disabled whether or not it is
user adjustable. DOE shall be contacted if this feature cannot be turned off or disabled.
F)	If a Dishwasher includes a prewash tank heater as an option, the model must be tested and
reported separately from the same model without the prewash tank heater.
G)	When the test method or referenced test procedures specify to use the nameplate or
manufacturer's recommendations, instructions, specifications, or requirements, the information
source shall be used in the following order of preference and documented in the test report:
nameplate data, user manual, communication with manufacturer.
H)	Since this test method will be used to qualify and/or verify products for ENERGY STAR, any
issues that result in a termination of testing will require the test lab to obtain a replacement unit or
replacement part. Field servicing of components by technicians is allowed. Component
replacements are limited to direct replacements with identical model numbers in cases where the
component is rendered defective. If the manufacturer elects to have a unit repaired by servicing
or replacing a component, the manufacturer may not request that a new unit be tested unless the
unit is inoperable subsequent to the repair. For features that are user adjustable, adjustments
may not occur once data collection has started.
I)	Power and energy data may be recorded for longer than the time periods specified. However,
data that are used for calculations shall be obtained from as close to the specified time periods or
events (e.g. tank heater "on" cycle) as possible.
5 TEST SETUP
A)	Water Consumption Test Instrumentation
1)	Pressure Gauge: The pressure gauge shall be capable of measuring at least 0-60 pounds per
square inch gage (psig) with a resolution of at least 1 psig and a maximum uncertainty of 1% of
the measured value.
2)	Scale: The scale shall be capable of measuring at least 0-100 pounds (lb) with a resolution of at
least 0.1 lb and an accuracy of at least +/- 0.1 lb.
3)	Stopwatch: The stopwatch shall have a resolution of at least 0.1 seconds (s) and an accuracy of
at least +/- 2% of the time period being measured.
4)	Vessel: The vessel for capturing the sanitizing and post-sanitizing rinse water shall be large
enough (depending on the tank volume) to capture the water consumed during the entire water
consumption test.
B)	Idle Energy Consumption Test Instrumentation
1) For all instruments, the specifications may be better than specified. Values provided are intended
to be the minimum or maximum (depending on which is the worst case for the parameter)
allowable.
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2) Meters
a)	Watt-hour Meters: For Dishwashers with electric tank or booster heat, the watt-hour meters
for measuring the energy consumption of the Dishwasher and booster heater separately shall
meet the requirements in ASTM F1920-11; Section 6.1 with the following revisions.
i. The maximum uncertainty shall be no greater than 10% of the measured value.
b)	Gas Meters: For Dishwashers with gas tank or booster heat, the gas meters for measuring
the gas consumption of the Dishwasher and booster heater separately shall meet the
requirements in ASTM F1920-11; Section 6.2 with the following revision and additions.
i.	The requirement that the pilot light gas meter shall have a maximum uncertainty of at
least 0.01 cubic feet (ft3) shall be excluded.
ii.	The tank heater gas meters shall be capable of measuring flows between at least
0 ft3/hour (h) and 250 ft3/h and the pilot light gas meters shall be capable of measuring
flows between at least 0 ft3/h and 10 ft3/h.
c)	Steam Flow Meters: For Dishwashers with steam coil tank or booster heat, the steam flow
meters shall meet the requirements in ASTM F1920-11; Section 6.3 with the following
addition.
i. The steam flow meters shall be capable of measuring flows between at least 0 ft3/h and
50 ft3/h and shall be capable of recording data at least as frequently as every second.
d) Water Flow Meters: For conveyor Dishwashers, the calibrated flow meters shall have a
resolution of at least 0.1 gallons per minute, an accuracy of +/-1.5% of the flow rate being
measured, and shall be capable of measuring flows between at least 0 gallons per minute
and 6 gallons per minute.
3)	Pressure Gauges
a)	Gas Pressure Gauge: For Dishwashers with gas tank heat, the gas pressure gauges shall
meet the requirements in ASTM F1920-11; Section 6.6.
b)	Steam Pressure Gauge: For Dishwashers with steam coil tank or booster heat, the steam
pressure gauges shall meet the requirements in ASTM F1920-11; Section 6.4 with the
following addition.
i. The steam pressure gauges shall be capable of measuring pressures between at least
0 psig and 100 psig.
4)	Ventilation
a)	Stationary Rack: For Dishwashers that are classified as stationary rack types, ventilation shall
meet the requirements in ASTM F1696-07: Standard Test Method for Energy Performance of
Single-Rack, Door-Type Commercial Dishwashing Machines; Section 6.5.
b)	Conveyors: For Dishwashers that are classified as conveyor types, ventilation shall meet the
requirements in ASTM F1920-11; Section 6.5 with the following revision.
i. Vent cowl exhaust ducts shall operate in accordance with the manufacturer's
recommendation, if applicable, or at a nominal 200 cubic feet per minute (cfm) on the
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entrance side of the Dishwasher and 400 cfm on the exit side if the manufacturer does
not provide recommendations.
5)	Thermocouple Probes and Temperature Sensors
a)	Thermocouple Probes: For all Dishwashers, the thermocouple probes shall meet the
requirements in ASTM F1920-11; Section 6.12 with the following revision and additions.
i.	"Dishwater" shall be replaced with "Dishwasher".
ii.	The thermocouple probes shall have a response time of less than 2 seconds.
iii.	For Dishwashers with steam coil tank or booster heat, the thermocouple probes shall be
used for measuring the condensate water outlet temperature.
b)	Ambient Air: For all Dishwashers, the temperature sensor for measuring ambient air
temperatures in the range of 50 degrees Fahrenheit (°F) to 100 °F shall have a resolution of
at least 0.5 °F and a maximum uncertainty of+/-1 °F.
c)	Gas: For Dishwashers with gas tank heat, the temperature sensor for measuring natural gas
temperatures shall meet the requirements in ASTM F1920-11; Section 6.7.
d)	Steam: For Dishwashers with steam coil tank or booster heat, the temperature sensor for
measuring steam temperatures in the range of 200 °F to 300 °F shall have a resolution of at
least 0.5 °F and a maximum uncertainty of+/-1 °F.
6)	Additional Requirements
a)	Stop Watch: For all Dishwashers, the stop watch shall meet the requirements in ASTM
F1920-11; Section 6.10. The stop watch shall have an accuracy of +/- 2% of the time period
being measured.
b)	Barometer: For Dishwashers with natural gas tank heat, a barometer shall be used if the gas
flow meter does not correct for pressure. For Dishwashers with steam coil tank or booster
heat, a barometer shall be used for calculating absolute pressure from gage pressure if the
pressure gauge does not correct for atmospheric pressure. The barometer shall meet the
requirements in ASTM F1920-11; Section 6.8.
c)	Dishrack: Metro Mdl P2MO, 20 in. x20 in., peg-type, commercial or acceptable equivalent.
C) Commercial Dishwasher Installation
1)	Commercial Dishwashers shall be installed per manufacturer's installation instructions. All
packing material and protective packaging shall be removed.
2)	Drain connections shall be accessible with sufficient space to allow capture vessel to be
positioned beneath.
3)	For steam coil tank or booster heat Dishwashers, install instruments to provide dry superheated
steam to the Dishwasher. Adjust the steam supply pressure to within +/- 2.5% of the operating
pressure specified by the manufacturer. Install instrumentation to record the pressure,
temperature, and volumetric flow rate of the steam supplied to the Dishwasher tank heater (and
booster heater separately, if applicable), the pressure and temperature of the condensate exiting
the Dishwasher tank heater (and booster heater separately, if applicable), and the barometric
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pressure during each test so that the measured gage pressures can be corrected to absolute
pressure.
4)	Stationary Rack Type: For Dishwashers that are classified as stationary rack types, the
Dishwasher setup shall meet the requirements in ASTM F1696-07; Sections 9.1-9.10 with the
following revisions and additions.
a)	In Section 9.3, the supply of water shall be within the range of the manufacturer-specified
input temperatures (not to exceed 140 +/- 2 °F). For testing purposes, the Dishwasher may
be connected to a source of water that is at the manufacturer specified sanitizing rinse
temperature in lieu of an external booster heater.
b)	In Section 9.4, the watt-hour meters shall be connected so that all idle energy (including tank
heater, motors, and controls) is monitored. For steam coil or gas Dishwashers, electric
energy consumption shall be simultaneously monitored with steam or gas energy
consumption. The Dishwasher and booster shall not be monitored as one energy load. For
the idle energy test, internal booster heaters shall be monitored separately and the booster
idle energy shall be reported separately from the total idle energy.
c)	In Section 9.5, instrumentation to record both the pressure and temperature of the gas
supplied to the Dishwasher and the barometric pressure is only necessary if the gas flow
meter does not already correct for pressure and temperature.
5)	Conveyors: For Dishwashers that are classified as conveyors, the Dishwasher setup shall meet
the requirements in ASTM F1920-11; Sections 9.1-9.11 with the following revisions and additions.
a)	In Section 9.3, the supply of water shall be within the range of the manufacturer-specified
input temperatures (not to exceed 140 +/- 2 °F). For testing purposes, the Dishwasher may
be connected to a source of water that is at the manufacturer specified sanitizing rinse
temperature in lieu of an external booster heater.
b)	In Section 9.4, the watt-hour meters shall be connected so that all idle energy (including tank
heater(s), motors, and controls) is monitored. For steam coil or gas Dishwashers, electric
energy consumption shall be simultaneously monitored with steam or gas energy
consumption. The Dishwasher and booster shall not be monitored as one energy load. For
the idle energy test, internal booster heaters shall be monitored separately and the booster
idle energy shall be reported separately from the total idle energy.
c)	In Section 9.5, instrumentation to record both the pressure and temperature of the gas
supplied to the Dishwasher and the barometric pressure is only necessary if the gas flow
meter does not already correct for pressure and temperature.
D) Test Settings
1) Water Consumption Test Settings:
a) Fresh Water Sanitizing or Post-Sanitizing Rinse Stationary Rack Type Machines
i.	If multiple cycle times are available, the Dishwasher shall be tested at the shortest time
setting.
ii.	If the water consumption including post-sanitizing rinse is being measured, turn on the
post-sanitizing rinse feature and ensure it remains on during testing.
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iii. Based on manufacturer instructions, set the sanitizing or post-sanitizing rinse flow
pressure based on the following:
•	For machines marked for sanitizing or post-sanitizing rinse pressure ratings of 20 +/-
5 psig, the test shall be run at 20 +/-1 psig.
•	For machines marked for sanitizing or post-sanitizing rinse pressure ratings other
than 20 +/- 5 psig, and a marked pressure range of greater than 5 psig, the test shall
be run with the sanitizing or post-sanitizing rinse pressure set at both the minimum
and maximum ratings marked on the unit +/-1 psig.
•	For machines marked for sanitizing or post-sanitizing rinse pressure ratings other
than 20 +/- 5 psig, and a marked pressure range of less than or equal to 5 psig, the
test shall be run with the sanitizing or post-sanitizing rinse pressure set at the
minimum rating marked on the unit +/-1 psig.
b)	Pumped Water Sanitizing or Post-Sanitizing Rinse Stationary Rack Type Machines
i.	If multiple cycle times are available, the Dishwasher shall be tested at the shortest time
setting.
ii.	If the water consumption including post-sanitizing rinse is being measured, turn on the
post-sanitizing rinse feature and ensure it remains on during testing.
iii.	The machine shall be filled to the manufacturer's recommended level. The same water
level shall be used for the water consumption and idle energy tests for consistency.
c)	Fresh Water Sanitizing or Post-Sanitizing Rinse Conveyor Type Machines
i.	If the conveyor speed is user adjustable, set to maximum conveyor speed and report the
conveyor speed. If it is not user adjustable, retain the factory setting and report the
conveyor speed.
ii.	If the water consumption including post-sanitizing rinse is being measured, turn on the
post-sanitizing rinse feature and ensure it remains on during testing.
iii.	Based on manufacturer instructions, set the rinse flow pressure based on the following:
•	For machines marked for sanitizing or post-sanitizing rinse pressure ratings of 20 +/-
5 psig, the test shall be run at 20 +/-1 psig.
•	For machines marked for sanitizing or post-sanitizing rinse pressure ratings other
than 20 +/- 5 psig, and a marked pressure range of greater than 5 psig, the test shall
be run with the sanitizing or post-sanitizing rinse pressure set at both the minimum
and maximum ratings marked on the unit +/-1 psig.
•	For machines marked for sanitizing or post-sanitizing rinse pressure ratings other
than 20 +/- 5 psig, and a marked pressure range of less than or equal to 5 psig, the
test shall be run with the sanitizing or post-sanitizing rinse pressure set at the
minimum rating marked on the unit +/-1 psig.
d)	Pumped Water Sanitizing or Post-Sanitizing Rinse Conveyor Type Machines
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i.	If the conveyor speed is user adjustable, set to maximum conveyor speed and report the
conveyor speed. If it is not user adjustable, retain the factory setting and report the
conveyor speed.
ii.	If the water consumption including post-sanitizing rinse is being measured, turn the post-
sanitizing rinse feature on and ensure it remains on during testing.
6 TEST METHODS FOR ALL PRODUCTS
6.1 Sanitizing and Post-Sanitizing Rinse Water Consumption
1)	Fresh Water Sanitizing or Post-Sanitizing Rinse Stationary Rack Type Machines
a)	Completely dry and weigh the capture vessel.
b)	Operate the machine through three cycles. Verify that the wash, rinse (including post-
sanitizing rinse if this feature is included), and dwell times are within 1 second of the
manufacturer's specified values and that the water pressure is within 1 psig of the
manufacturer's specified value. If they are not, make adjustments and operate the
machine through additional cycles until they are (i.e. steady state is achieved). If the
specified times are not reached, terminate testing.
c)	Using the weighed capture vessel, catch all water that is sent to the drain during a
complete cycle, including any water from a post-sanitizing rinse if the water consumption
including post-sanitizing rinse is being measured. Record the exact wash, rinse, and
dwell times. It may take longer than the duration of the cycle for all of the water to drain;
thus the vessel shall remain in place until the water flow from the cycle ceases.
d)	Weigh the filled vessel after the cycle, subtracting the weight of the capture vessel to
calculate the weight of the water.
e)	Repeat steps a) through d) five times. Completely dry the vessel after each cycle.
2)	Pumped Water Sanitizing or Post-Sanitizing Rinse Stationary Rack Type Machines
a)	Completely dry and weigh the capture vessel.
b)	Operate the machine through three cycles. Verify that the wash, rinse, and dwell times
are within one second of the manufacturer's specified values and that the water is within
0.25 inch (in.) of the water fill line. If it is not, adjust the water pressure until the water is
within 0.25 in. of the water fill line. If the water is still not within 0.25 in. of the water fill
line, the wash, rinse, and dwell times may be adjusted, but the new times shall be
recorded. If the specified times and/or water fill level are not reached, terminate testing.
c)	Using the weighed capture vessel, catch all water that is sent to the drain during a
complete cycle, including any water from a post-sanitizing rinse if the water consumption
including post-sanitizing rinse is being measured. Record the exact wash, rinse, and
dwell times. It may take longer than the duration of the cycle for all of the water to drain;
thus the vessel shall remain in place until the water flow from the cycle ceases.
d)	Weigh the filled vessel after the cycle, subtracting the weight of the capture vessel to
calculate the weight of the water.
e)	Repeat steps a) through d) five times. Completely dry the vessel after each cycle.
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3)	Fresh Water Sanitizing or Post-Sanitizing Rinse Conveyor Type Machines
a)	Activate the sanitizing rinse solenoid (and the post-sanitizing rinse solenoid if the water
consumption including post-sanitizing rinse is being measured) for 5 minutes (min). Do
not activate any other component(s) of the Dishwasher that sends water to the drain. If
there is a lever that actuates the sanitizing rinse solenoid or post-sanitizing rinse
solenoid, the lever may be held down to simulate operation. Verify that the water
pressure is within 1 psig of the manufacturer's specified value. If it is not, make
adjustments and operate the machine until it is (i.e. steady state is achieved).
b)	Using a flow meter, measure all water that is sent to the drain during 1 min +/-1 second
of continuous operation of the sanitizing rinse solenoid (and post-sanitizing rinse solenoid
if the water consumption including post-sanitizing rinse is being measured). Record the
exact time. Do not activate any other component(s) of the Dishwasher that sends water
to the drain. If there is a lever that actuates the sanitizing rinse solenoid or post-sanitizing
rinse solenoid, the lever may be held down to simulate operation.
c)	Repeat steps a) and b) five times.
4)	Pumped Water Sanitizing or Post-Sanitizing Rinse Conveyor Type Machines
a)	Activate the sanitizing rinse (and the post-sanitizing rinse if the water consumption
including post-sanitizing rinse is being measured) for 5 min. Do not activate any other
component(s) of the Dishwasher that sends water to the drain. If there is a lever that
actuates the sanitizing rinse or post-sanitizing rinse, the lever may be held down to
simulate operation. Verify that the pumped sanitizing rinse and post-sanitizing rinse
operate correctly. If they do not, terminate testing.
b)	Using a flow meter, measure all water that is sent to the drain during 1 min +/-1 second
of continuous operation of the sanitizing rinse (and post-sanitizing rinse if the water
consumption including post-sanitizing rinse is being measured). Record the exact time.
Do not activate any other component(s) of the Dishwasher that sends water to the drain.
If there is a lever that actuates the sanitizing rinse or post-sanitizing rinse, the lever may
be held down to simulate operation.
c)	Repeat steps a) and b) five times.
6.2 Idle Energy Consumption for Stationary Rack Type Machines
1) General measurements shall be taken and recorded as specified in ASTM F1696-07; Section
10.1 with the following revisions and additions.
a)	Steam coil units shall also be included in Section 10.1.1.
b)	Section 10.1.1.2 shall be disregarded.
c)	The higher heating value shall be measured for all tests with a gas powered tank heater
or booster. The other measurements specified in Section 10.1.2 shall only be taken if the
gas meter does not already correct the gas volume based on temperature and pressure.
Section 10.1.2.6 shall be disregarded.
d)	Section 10.1.4 shall be replaced with "For Dishwashers that use steam coils for tank or
booster heat, the steam temperature, pressure, and volumetric flow rate at Dishwasher
inlet, water temperature and pressure at Dishwasher outlet, and barometric pressure
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shall be recorded at no greater than 1 second of every test. Make any necessary
corrections to the measurements as required by the instruments (i.e. correction for
elevation of pressure gauge above pressure line, etc.)."
e) Section 10.1.5 shall be disregarded.
2)	For Dishwashers with steam coil tank or booster heat, allow the Dishwasher tank or booster
heater to idle for one "on" cycle, with the exterior service door(s) closed. As the tank or booster
heater cycles on for the second time, record the amount of time between steam entering the
volumetric flow meter and exiting as condensate with a stopwatch as tdeLay (seconds). This time
delay is used to compare the data from the inlet to the corresponding data from the outlet. Adjust
testing times so that there is enough data to account for this delay. Alternately, if the time delay
cannot be determined using this method, it may be estimated by dividing the volume of the heat
exchanger by the average flow during the first complete heater "on" cycle.
3)	If there is a booster heater for high temperature machines, the booster temperature shall be
calibrated as follows:
a)	For external booster heaters, while monitoring the water inlet of the booster heater or
water source and Dishwasher (rinse manifold) temperature, initiate a Dishwasher cycle.
Adjust the booster heater or water source to the manufacturer's recommended sanitizing
rinse temperature +/- 2 °F, if user adjustable. If the manufacturer does not have a
recommended external booster heater setting, then set the booster heater thermostat
such that the average temperature of water at the Dishwasher manifold (measured only
during the rinse) is between 180 °F and 195 °F. If the machine is supplied with an internal
booster heater, retain the factory setting of the thermostat.
b)	Run two machine cycles with an empty dishrack placed in the machine to confirm that the
stabilized flowing sanitizing rinse temperature is above the manufacturer's rated
sanitizing rinse temperature minus 1 °F (or above 180 °F if the manufacturer does not
provide a rated rinse temperature). If the stabilized flowing sanitizing rinse temperature is
below the manufacturer's nameplate rated sanitizing rinse temperature minus 1 °F (or
below 180 °F if the manufacturer does not provide a rated sanitizing rinse temperature),
adjust the thermostat per the manufacturer's instructions if it is user adjustable.
4)	The wash tank temperature shall be set as specified in ASTM F1920-11; Section 10.6 with the
following revisions and additions.
a)	"Dishwater" shall be replaced with "Dishwasher". Verify that the minimum tank heater
temperature during the three consecutive heater cycles is above the manufacturer's
recommended setting minus 1 °F and the maximum temperature is not more than 15 °F
higher than the minimum measured temperature. Repeat for all actively heated tanks.
b)	Run two machine cycles with an empty dishrack placed in the machine to confirm that the
minimum tank temperature(s) during the test is above the manufacturer's recommended
setting minus 1 °F and the maximum temperature is not more than 15 °F higher than the
minimum measured temperature If the tank temperature(s) is not correct, adjust the
thermostat per the manufacturer's instructions if it is user adjustable.
5)	The tank heater "maximum energy input rate" (i.e. maximum power) shall be measured and
reported as specified in ASTM F1696-07; Section 10.2 with the following revisions and additions.
a) The maximum energy input rate determination is used to verify that the dishwasher is
operating within manufacturer specifications. If there is a nameplate rating or a rating
printed on the heating element for the tank heater, follow the steps below. If the tank
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heater is included as part of a total power consumption nameplate rating, follow the steps
below while monitoring the total power consumption for all components included in the
rating.
b)	Section 10.2.1 shall be disregarded.
c)	Section 10.2.2 shall be replaced with the following:
i.	Instruments shall be connected so that only the energy (for steam and gas tank
heat) or power (for electric tank heat) consumption of the tank heater is
measured. Fill the Dishwasher tank with water.
ii.	For electric tank heaters, commence monitoring the power of the tank heater
when the tank heater cycles on. Stop monitoring the power when the tank heater
cycles off. Record the maximum power value as the "maximum energy input
rate".
iii.	For gas tank heaters, allow the tank heater to idle for one "on" cycle to allow the
burner orifices to heat up. Commence monitoring the elapsed time and energy
consumption of the tank heater when the tank heater cycles on for the second
time. Stop monitoring the elapsed time and energy consumption of the tank
heater when the tank heater cycles off. Record the time and energy consumption
of the tank heater during the complete "on" cycle.
iv.	For steam coil tank heaters, commence monitoring the elapsed time and energy
consumption of the tank heater when the tank heater cycles on. Stop monitoring
the elapsed time and energy consumption of the tank heater when the tank
heater cycles off. Record the time and energy consumption of the tank heater
during the complete "on" cycle.
d)	Section 10.2.3 shall be followed as written with the following revision.
i.	The tank heater "maximum energy input rate" (i.e. maximum power) for the
Dishwasher under test shall be determined in accordance with Section 7.6 of this
test method.
ii.	If the difference between the recorded value and the nameplate rating or rating
printed on the heating element is greater than 5%, testing shall be terminated.
Note: ASTM F1696-07 specifies that the manufacturer may make appropriate
changes or adjustments to the dishwasher. See Test Conduct Section 4H) for
ENERGY STAR requirements.
e)	For machines with steam coil tank heat, using an appropriately sized vessel that is
completely dry, catch all water from the outlet during the test. Weigh the filled vessel,
subtracting the weight of the capture vessel to calculate the weight of the water.
Calculate the total mass of the inlet steam during the test and confirm that it is within 5%
of the mass of water measured from the outlet stream. If the difference is greater than
5%, adjust the quality of the steam until the difference is less than 5% and rerun the tank
heater "maximum energy input rate" (i.e. maximum power) test.
6) If there is a booster heater, the booster heater maximum energy input rate shall be measured and
reported as specified in ASTM F1696-07; Section 10.3 with the following revisions and additions.
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a) If there is a nameplate rating or a rating printed on the heating element for the booster
heater, follow the steps below. If the booster heater is included as part of a total power
consumption nameplate rating, follow the steps below while monitoring the total power
consumption for all components included in the rating.
b) Section 10.3.1 shall be replaced with the following:
i. Instruments shall be connected so that only the energy (for gas or steam booster
heat) or power (for electric booster heat) consumption of the booster heater is
measured. Fill the booster heater with water.
ii.	For electric booster heaters, commence monitoring the power of the booster
heater when the booster heater cycles on. Stop monitoring the power when the
booster heater cycles off. Record the maximum power value as the "maximum
energy input rate".
iii.	For gas booster heaters, allow the tank heater to idle for one "on" cycle to allow
the burner orifices to heat up. Commence monitoring the elapsed time and
energy consumption of the booster heater when the booster heater cycles on for
the second time. Stop monitoring the elapsed time and energy consumption of
the booster heater when the booster heater cycles off. Record the time and
energy consumption of the booster heater during the complete "on" cycle.
iv. For steam coil booster heaters, commence monitoring the elapsed time and
energy consumption of the booster heater when the booster heater cycles on.
Stop monitoring the elapsed time and energy consumption of the booster heater
when the tank heater cycles off. Record the time and energy consumption of the
booster heater during the complete "on" cycle.
c) Section 10.3.2 shall be followed as written with the following revision.
i. The booster heater "maximum energy input rate" (i.e. maximum power) for the
Dishwasher under test shall be determined in accordance with Section 7.6 of this
test method.
ii. If the difference between the recorded value and the nameplate rating or rating
printed on the heating element is greater than 5%, testing shall be terminated.
Note: ASTM F1696-07 specifies that the manufacturer may make appropriate
changes or adjustments to the dishwasher. See Test Conduct Section 4H) for
ENERGY STAR requirements.
d) For machines with steam coil booster heat, using an appropriately sized vessel that is
completely dry, catch all water from the outlet during the test. Weigh the filled vessel,
subtracting the weight of the capture vessel to calculate the weight of the water.
Calculate the total mass of the inlet steam during the test and confirm that it is within 5%
of the mass of water measured from the outlet stream. If the difference is greater than
5%, adjust the quality of the steam until the difference is less than 5% and rerun the
booster heater "maximum energy input rate" (i.e. maximum power) test.
7) The idle energy rate (i.e. power) shall be measured as follows:
a) If the Dishwasher does not have an internal booster heater:
i. Allow the Dishwasher to fill and energize the tank heater.
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ii.	With the door(s) closed, allow the Dishwasher tank to idle for at least 1 hour for
stabilization. Commence monitoring elapsed time, tank temperature, and total
energy consumption of the Dishwasher when the tank heater "on" cycles for the
first time after the 1 hour stabilization period.
iii.	Allow the Dishwasher to idle for 3 hours. If there have not been ten distinct
heater cycles during the 3 hour period, continue to run the test and record data.
Stop the test the tenth time that the heater cycles off. Record the final elapsed
time and energy consumption of the Dishwasher.
iv.	Record the minimum tank temperature during the test and confirm that it is at or
above the manufacturer's specified minimum tank temperature minus 1 °F, as
applicable. If the minimum tank temperature during the idle energy test is below
the manufacturer's specified tank temperature minus 1 °F, the test is invalid and
must be repeated. If the tank temperature exceeds 15 °F of the measured
minimum tank temperature, the test is invalid and must be repeated. Adjust the
thermostat per the manufacturer's instructions if it is user adjustable and repeat
the steps in i through iii.
b) If the Dishwasher has an internal booster heater:
i.	Allow the Dishwasher to fill and energize the tank heater and booster heater.
ii.	With the door(s) closed, allow the Dishwasher tank and booster heater to idle for
at least 1 hour for stabilization. Commence monitoring elapsed time, tank
temperature, and total energy consumption of the Dishwasher when the tank
heater cycles "on" for the first time after the 1 hour stabilization period.
iii.	Allow the Dishwasher to idle for 3 hours. If there have not been ten distinct
heater cycles during the 3 hour period, continue to run the test and record data.
Stop the test the tenth time that the heater cycles off. Record the final elapsed
time and energy consumption of the Dishwasher.
iv.	The booster idle energy consumption shall be reported separately from the total
idle energy consumption.
•	If possible, sub-monitor the idle energy consumption of the booster
heater during the Dishwasher idle energy test described in steps i
through iii above.
•	If the booster heater idle energy cannot be simultaneously measured
with the Dishwasher idle energy, the booster heater idle energy may be
monitored at a different time; however, the number of booster heater "on"
cycles in the separate test must be equivalent to the number of booster
heater "on" cycles in the Dishwasher idle energy. Repeat steps i through
iii above, but record the energy consumption of the booster heater
instead of the total Dishwasher energy consumption.
•	If the booster heater cannot be separately monitored or sub-monitored,
the booster heater idle energy consumption shall be included as part of
the total idle energy consumption.
v.	Record the minimum tank temperature during the test(s) and confirm that it is at
or above the manufacturer's specified minimum tank temperature minus 1 °F, as
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applicable. If the minimum tank temperature during the idle energy test is below
the manufacturer's specified tank temperature minus 1 °F, then the test is invalid
and must be repeated. If the tank temperature exceeds 15 °F of the measured
minimum tank temperature, the test is invalid and must be repeated. Adjust the
thermostat per the manufacturer's instructions if it is user adjustable and repeat
the steps in i through iv.
6.3 Idle Energy Consumption for Conveyor Type Machines
1)	General measurements shall be taken and recorded as specified in ASTM F1920-11; Section
10.1 with the following revisions and additions.
a)	Steam coil units shall also be included in Section 10.1.1.
b)	Section 10.1.1.2 shall be disregarded.
c)	The higher heating value shall be measured for all tests with a gas powered tank heater
or booster. The other measurements specified in Section 10.1.2 shall only be taken if the
gas meter does not already correct the gas volume based on temperature and pressure.
Section 10.1.2.6 shall be disregarded.
d)	Section 10.1.4 shall be replaced with "For Dishwashers that use steam coils for tank or
booster heat, the steam temperature, pressure, and volumetric flow rate at Dishwasher
inlet, water temperature and pressure at Dishwasher outlet, and barometric pressure
shall be recorded at no greater than 1 second of every test. Make any necessary
corrections to the measurements as required by the instruments (i.e. correction for
elevation of pressure gauge above pressure line, etc.)."
e)	Section 10.1.5 shall be disregarded.
2)	For Dishwashers with steam coil tank or booster heat, with the exterior service door(s) closed,
allow the Dishwasher tank or booster to idle for one "on" cycle. As the tank or booster heater
cycles on for the second time, record the amount of time between steam entering the volumetric
flow meter and exiting as condensate with a stopwatch as tdeLay (seconds). This time delay is
used to compare the data from the inlet to the corresponding data from the outlet. Adjust testing
times so that there is enough data to account for this delay. Alternately, if the time delay cannot
be determined using this method, it may be estimated by dividing the volume of the heat
exchanger by the average flow during the first complete heater "on" cycle.
3)	If there is a booster heater for high temperature machines, the booster temperature shall be
calibrated as follows:
a)	For external booster heaters, while monitoring the water inlet of the booster heater or
water source and Dishwasher (rinse manifold) temperature, initiate a Dishwasher cycle.
Adjust the booster heater or water source to the manufacturer's recommended sanitizing
rinse temperature +/- 2 °F, if user adjustable. If the manufacturer does not have a
recommended external booster heater setting, then set the booster heater thermostat
such that the average temperature of water at the Dishwasher manifold (measured only
during the rinse) is between 180 °F and 195 °F. If the machine is supplied with an internal
booster heater, retain the factory setting of the thermostat.
b)	Run two empty dishracks through the machine to confirm that the stabilized flowing
sanitizing rinse temperature is above the manufacturer's rated sanitizing rinse
temperature minus 1 °F (or above 180 °F if the manufacturer does not provide a rated
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sanitizing rinse temperature). If the stabilized flowing sanitizing rinse temperature is
below the manufacturer's nameplate rated sanitizing rinse temperature minus 1 °F (or
below 180 °F if the manufacturer does not provide a rated rinse temperature), adjust the
thermostat per the manufacturer's instructions if it is user adjustable.
4)	The tank temperature(s) shall be calibrated as specified in ASTM F1920-11; Section 10.6 with the
following revisions and additions.
a)	"Dishwater" should be replaced with "Dishwasher". Verify that the minimum tank heater
temperature during the three consecutive heater cycles is above the manufacturer's
recommended setting minus 1 °F and the maximum temperature is not more than 15 °F
higher than the measured minimum temperature. Repeat for all actively heated tanks.
b)	Run two empty dishracks through the machine to confirm that the minimum tank
temperature(s) during the test is above the manufacturer's recommended setting minus
1 °F and the maximum temperature is not more than 15 °F higher than the measured
minimum temperature If the tank temperature(s) is not correct, adjust the thermostat per
the manufacturer's instructions if it is user adjustable.
5)	The wash tank pump and conveyor motor shall be calibrated as specified in ASTM F1920-11;
Section 10.7with the following revision.
a) Section 10.7.1 is applicable to all pumps (not just the wash pump).
6)	The tank heater "maximum energy input rate" (i.e. maximum power) shall be measured and
reported as specified in ASTM F1920-11; Section 10.2 with the following revisions and additions.
a)	The maximum energy input rate determination is used to verify that the dishwasher is
operating within manufacturer specifications. If there is a nameplate rating or a rating
printed on the heating element for the tank heater(s), follow the steps below. If the tank
heater(s) are included as part of a total power consumption nameplate rating, follow the
steps below while monitoring the total power consumption for all components included in
the rating.
b)	Section 10.2.1 shall be replaced with the following:
i.	Instruments shall be connected so that only the energy (for steam and gas tank
heat) or power (for electric tank heat) consumption of the tank heater(s) is
measured. Fill the Dishwasher tank with water.
ii.	For electric tank heaters, commence monitoring the power of the tank heater
when the tank heater cycles on. Stop monitoring the power when the tank heater
cycles off. Record the maximum power value as the "maximum energy input
rate".
iii.	For gas tank heaters, allow the tank heater to idle for one "on" cycle to allow the
burner orifices to heat up. Commence monitoring the elapsed time and energy
consumption of the tank heater when the tank heater cycles on for the second
time. Stop monitoring the elapsed time and energy consumption of the tank
heater when the tank heater cycles off. Record the time and energy consumption
of the tank heater during the complete "on" cycle.
iv.	For steam coil tank heaters, commence monitoring the elapsed time and energy
consumption of the tank heater when the tank heater cycles on. Stop monitoring
the elapsed time and energy consumption of the tank heater when the tank
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heater cycles off. Record the time and energy consumption of the tank heater
during the complete "on" cycle.
c)	Section 10.2.2 shall be followed as written with the following revision.
i.	The tank heater "maximum energy input rate" (i.e. maximum power) for the
Dishwasher under test shall be determined in accordance with Section 7.6 of this
test method.
ii.	If the difference between the recorded value and the nameplate rating or rating
printed on the heating element is greater than 5%, testing shall be terminated.
Note: ASTM F1696-07 specifies that the manufacturer may make appropriate
changes or adjustments to the dishwasher. See Test Conduct Section 4H) for
ENERGY STAR requirements.
d)	For machines with steam coil tank heat, using an appropriately sized vessel that is
completely dry, catch all water from the outlet during the test. Weigh the filled vessel,
subtracting the weight of the capture vessel to calculate the weight of the water.
Calculate the total mass of the inlet steam during the test and confirm that it is within 5%
of the mass of water measured from the outlet stream. If the difference is greater than
5%, adjust the quality of the steam until the difference is less than 5% and rerun the tank
heater "maximum energy input rate" (i.e. maximum power) test.
7) If there is a booster heater, the booster heater maximum energy input rate shall be measured and
reported as specified in ASTM F1920-11; Section 10.3 with the following revisions and additions.
a)	If there is a nameplate rating or a rating printed on the heating element for the booster
heater, follow the steps below. If the booster heater is included as part of a total power
consumption rating, follow the steps below while monitoring the total power consumption
for all components included in the rating.
b)	Section 10.3.1 shall be replaced with the following:
i.	Instruments shall be connected so that only the energy (for gas or steam booster
heat) or power (for electric booster heat) consumption of the booster heater is
measured. Fill the booster heater with water.
ii.	For electric booster heaters, commence monitoring the power of the booster
heater when the booster heater cycles on. Stop monitoring the power when the
booster heater cycles off. Record the maximum power value as the maximum
energy input rate.
iii.	For gas booster heaters, allow the tank heater to idle for one "on" cycle to allow
the burner orifices to heat up. Commence monitoring the elapsed time and
energy consumption of the booster heater when the booster heater cycles on for
the second time. Stop monitoring the elapsed time and energy consumption of
the booster heater when the booster heater cycles off. Record the time and
energy consumption of the booster heater during the complete "on" cycle.
iv.	For steam coil booster heaters, commence monitoring the elapsed time and
energy consumption of the booster heater when the booster heater cycles on.
Stop monitoring the elapsed time and energy consumption of the booster heater
when the tank heater cycles off. Record the time and energy consumption of the
booster heater during the complete "on" cycle.
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c)	Section 10.3.2 shall be followed as written with the following revision.
i.	The booster heater "maximum energy input rate" (i.e. maximum power) for the
Dishwasher under test shall be determined in accordance with Section 7.6 of this
test method.
ii.	If the difference between the recorded value and the nameplate rating or rating
printed on the heating element is greater than 5%, testing shall be terminated.
Note: ASTM F1696-07 specifies that the manufacturer may make appropriate
changes or adjustments to the dishwasher. See Test Conduct Section 4H) for
ENERGY STAR requirements.
d)	For machines with steam coil booster heat, using an appropriately sized vessel that is
completely dry, catch all water from the outlet during the test. Weigh the filled vessel,
subtracting the weight of the capture vessel to calculate the weight of the water.
Calculate the total mass of the inlet steam during the test and confirm that it is within 5%
of the mass of water measured from the outlet stream. If the difference is greater than
5%, adjust the quality of the steam until the difference is less than 5% and rerun the
booster heater "maximum energy input rate" (i.e. maximum power) test.
8) The idle energy rate (i.e. power) shall be measured as follows:
a) If the Dishwasher does not have an internal booster heater:
i.	Allow the Dishwasher to fill and energize the tank heater(s).
ii.	For single tank machines, with the exterior service door(s) closed, allow the
Dishwasher tank to idle for at least 1 hour for stabilization. Commence monitoring
elapsed time, tank temperature, and total energy consumption of the Dishwasher
when the tank heater on "cycles" for the first time after the 1 hour stabilization
period.
Hi. For multiple tank machines, with the exterior service door(s) closed, allow the
Dishwasher tanks to idle for at least 1 hour for stabilization. Commence
monitoring the elapsed time and total energy consumption of the Dishwasher and
the temperature of all the tanks when one of the tank heaters "on" cycles again
after the 1 hour stabilization period.
iv.	Allow the Dishwasher to idle for 3 hours. If there have not been ten distinct tank
heater cycles for all tank heaters during the 3 hour period, continue to run the
test and record data. Stop the test when one of the tank heaters cycles off again
after all tank heaters have "on" cycled ten times. Record the final elapsed time
and energy consumption of the Dishwasher.
v.	Record each tank's minimum tank temperature during the test and confirm that it
is at or above the manufacturer's specified minimum tank temperature(s) minus
1 °F, as applicable. If the minimum tank temperature(s) during the idle energy
test was below the manufacturer's specified tank temperature(s) minus 1 °F, the
test is invalid and must be repeated. If the tank temperature(s) exceeds 15 °F of
the measured minimum tank temperature(s), the test is invalid and must be
repeated. Adjust the thermostat per the manufacturer's instructions if it is user
adjustable and repeat the steps in i through iv.
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b) If the Dishwasher has an internal booster heater:
i.	Allow the Dishwasher to fill and energize the tank heater(s).
ii.	For single tank machines, with the exterior service door(s) closed, allow the
Dishwasher tank to idle for at least 1 hour for stabilization. Commence monitoring
elapsed time, tank temperature, and total energy consumption of the Dishwasher
when the tank heater cycles "on" for the first time after the 1 hour stabilization
period.
iii.	For multiple tank machines, with the exterior service door(s) closed, allow the
Dishwasher tanks to idle for at least 1 hour for stabilization. Commence
monitoring the elapsed time and total energy consumption of the Dishwasher and
the temperature of all the tanks when one of the tank heaters "on" cycles again
after the 1 hour stabilization period.
iv.	Allow the Dishwasher to idle for 3 hours. If there have not been ten distinct tank
heater cycles for all tank heaters during the 3 hour period, continue to run the
test and record data. Stop the test when one of the tank heaters cycles off again
after all tank heaters have "on" cycled ten times. Record the final elapsed time
and energy consumption of the Dishwasher.
v.	The booster idle energy rate shall be reported separately from the total idle
energy rate.
•	If possible, sub-monitor the idle energy rate of the booster heater during
the Dishwasher idle energy test described in steps i through iv above.
•	If the booster heater idle energy cannot be simultaneously measured
with the Dishwasher idle energy, the booster heater idle energy may be
monitored at a different time; however, the number of booster heater "on"
cycles in the separate test must be equivalent to the number of booster
heater "on" cycles in the Dishwasher idle energy test. Repeat steps i
through iv above, but record the energy consumption of the booster
heater instead of the total Dishwasher energy consumption.
•	If the booster heater cannot be separately monitored or sub-monitored,
the booster heater idle energy shall be included as part of the total idle
energy.
vi.	Record each tank's minimum tank temperature during the test(s) and confirm that
it is at or above the manufacturer's specified minimum tank temperature(s) minus
1 °F, as applicable. If the minimum tank temperature(s) during the idle energy
test is below the manufacturer's specified tank temperature(s) minus 1 °F, then
the test is invalid and must be repeated. If the tank temperature(s) exceeds 15 °F
of the measured minimum tank temperature(s), the test is invalid and must be
repeated. Adjust the thermostat per the manufacturer's instructions if it is user
adjustable and repeat the steps in i through v.
7 CALCULATIONS
7.1 Racks per Hour
A) Fresh Water or Pumped Water Sanitizing or Post-Sanitizing Rinse Stationary Type Machines
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Equation 1: Racks per Hour for Stationary Type Machines
3600 seconds x NR
Racks per Hour = —¦	TmN. IN
(WT + RT + DT + LT)(seconds)
Where:
Racks per Hour = Number of racks washed per hour, truncated to the next lowest whole number
NR = Number of racks washed per cycle
WT = Wash time (i.e. amount of time spent in wash mode) in seconds as recorded during test
RT= Rinse time (i.e. amount of time spent in rinse mode, including a post-sanitizing rinse) in
seconds as recorded during test
DT = Dwell time (i.e. amount of time spent in dwell mode) in seconds as recorded during test
LT = Load time (30 seconds for under counter Dishwashers, 5 seconds for straight through door-
type Dishwashers, 7 seconds for corner door-type Dishwashers, 30 seconds for front load/unload
door-type Dishwashers)
B) Fresh Water or Pumped Water Sanitizing or Post-Sanitizing Rinse Conveyor Type (excluding
Flight Type) Machines
Equation 2: Racks per Hour for Conveyor Type Machines
60 minutes
CS x	t	
Racks per Hour = ¦	our
RLx
12 in
Where:
Racks per Hour = Number of racks washed per hour, truncated to the next lowest whole number
RL= Rack length (use 20 inches)
CS= Manufacturer specified maximum conveyor speed in feet per minute
7.2 Sanitizing and Post-Sanitizing Rinse Water Consumption (Gallons per
Hour, GPH)
A)	Fresh Water or Pumped Water Sanitizing or Post-Sanitizing Rinse Stationary Type Machines
Equation 3: Gallons per Hour for Stationary Type Machines
^5 Measured Weight of water for cycle n (lbs)
Ln=i	5 cycles	Racks per Hour
Gallons per Hour =	„ „ „ ,,	x	
p	8.34 lbs	NR
gal
Where:
Racks per Hour = Number of racks washed per hour, truncated to the next lowest whole number,
as calculated in Section 7.1
NR = Number of racks washed per cycle
B)	Fresh Water or Pumped Water Sanitizing or Post-Sanitizing Rinse Conveyor Type (including
Flight Type) Machines
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Equation 4: Gallons per Hour for Conveyor Type Machines
Yin=i Measured Flow of water for test run n (gallons per minute)
Gallons per Hour =		
^	,.1 hour
5 test runs x tr—=—r—
60 minutes
Where:
Measured Flow of water for test run n = Flow of water measured by flow meter from one minute
of sanitizing rinse activation (and post-sanitizing rinse solenoid activation if the water
consumption including post-sanitizing rinse is being measured).
7.3 Sanitizing and Post-Sanitizing Rinse Water Consumption
A)	Fresh Water or Pumped Water Sanitizing or Post-Sanitizing Rinse Stationary Rack Type
Machines
Equation 5: Gallons per Rack for Stationary Type Machines
Gallons per Hour
Gallons per Rack =	-	
Racks per Hour
Where:
Gallons per Hour= Water use in gallons per hour, as calculated in Section 7.2
Racks per Hour= Number of racks washed per hour, truncated to the next lowest whole number,
as calculated in Section 7.1
B)	Fresh Water or Pumped Water Sanitizing and Post-Sanitizing Rinse Conveyor Type (excluding
Flight Type) Machines
Equation 6: Gallons per Rack for Conveyor Type Machines
Gallons per Hour
Gallons per Rack =			
Racks per Hour
Where:
Gallons per Hour= Water use in gallons per hour, as calculated in Section 7.2
Racks per Hour= Number of racks washed per hour, truncated to the next lowest whole number,
as calculated in Section 7.1
C)	Pot, Pan, and Utensil Type Machines
Equation 7: Gallons per Square Foot for Pot, Pan, and Utensil Type Machines
Gallons per Rack
Gallons per Square Foot =					-
Square foot of rack
Where:
Gallons per Rack= Water use in gallons per hour, as calculated in Section 7.3A)
Square foot of rack= Manufacturer specified rack area in ft2 for machine tested
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7.4 Gas Energy Consumption
A) The gas energy consumption rate shall be calculated as specified in ASTM F1920-11; Section
11.3 with the following revision.
1) Equation (2) shall only be used to calculate V if the gas meter does not already correct
the gas volume based on temperature and pressure using the same standard values for
temperature and pressure that were used to calculate the higher heating value in ASTM
F1920-11; Section 10.1.2.
7.5 Steam Coil Energy Consumption
A) Inlet Steam Mass Flow Rate
1)	Find the measured pressure and temperature values for the inlet stream for each data
point in the superheated or saturated steam tables1 (depending on the state of the steam)
and record the listed density (pSteam)¦ If the exact pressure and temperature are not listed
in the table, interpolate between the two closest pressure and temperature values to
calculate the density.
2)	Calculate the mass flow rate for each data point as follows:
Equation 8: Inlet Steam Mass Flow Rate for Steam Coil Machines
^steam ^Steam % Psteam
Where:
Msteam = Mass flow rate of steam (pounds (lb)/h)
Vsteam = Measured volumetric flow rate of steam (ft3/h)
Psteam~ Density of steam (lb/ft3), calculated from steam tables
B) Inlet Steam Total Mass
Equation 9: Inlet Steam Total Mass for Steam Coil Machines
N
Z1 hour
(MSteam,i * t;) X 36()() secQnds
1 = 1
Where:
Mrotai= Total steam consumption during time period (lb)
MSteam,i = Instantaneous steam mass flow rate for each data point (Ib/h)
N = Total number of data points during time period, excluding extra data to account for
tdelay
tj = Time interval of each data point (seconds)
1 "Steam tables" throughout this test procedure refers to any steam table source based on the
International Association for the Properties of Water and Steam Formulation 1997 for the Thermodynamic
Properties of Water and Steam for Industrial Use.
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C)	Inlet Stream Enthalpy
1) Find the measured pressure and temperature values for the inlet steam for each data
point in the superheated or saturated steam tables (depending on the state of the steam)
and record the listed enthalpy (HInlet). If the exact pressure and temperature are not
listed in the table, interpolate between the two closest pressure and temperature values
to calculate the enthalpy.
D)	Outlet Water Enthalpy
1)	Find the pressure value for the outlet water for each data point in the saturated steam
tables. Record the listed saturated liquid enthalpy value (HSaturated) and saturated
temperature value (TSaturated). If the exact pressure is not listed in the table, interpolate
between the two closest pressure values to calculate the enthalpy.
2)	Calculate the enthalpy of the outlet water for each data point as follows:
Equation 10: Outlet Water Enthalpy for Steam Coil Machines
^Outlet HSaturated C% (Tsaturated ^Measured))
Where:
Houtlet = Enthalpy of Dishwasher outlet stream (British thermal units (Btu)/lb)
^saturated = Saturated liquid enthalpy value listed in steam tables (Btu/lb)
Cv = Heat capacity of water (1 Btu/lb °F)
Tsaturated = Saturated liquid temperature value listed in steam tables (°F)
^Measured = Recorded temperature of liquid water outlet stream during test (°F)
E) Instantaneous Energy Consumption
1) Calculate the energy for each data point as follows:
Equation 11: Instantaneous Energy Consumption for Steam Coil Machines
/	\	1 hour
Ei — MSteam,i x y^Inlet,i ~ HOutlet,i+tdelay) X tt X ggQQ seconds
Where:
Ei = Instantaneous energy consumption for each data point (Btu)
MSteam,i= Calculated mass flow rate of steam for each data point (Ib/h)
H,niet,i= Enthalpy of Dishwasher inlet steam for each data point (Btu/lb)
Houtlet,i+tdeiay = Enthalpy of Dishwasher outlet water for each data point (Btu/lb)
tdeiay = Measured time between steam entering the flow meter and exiting as water
(seconds)
tj = Time interval of each data point (seconds)
F) Total Energy Consumption
Equation 12: Total Energy Consumption for Steam Coil Machines
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N
ETotal ~ E{) EElectric
i=1
Where:
Erotai = Total energy consumption during test (active or idle) (Btu)
Ei= Instantaneous energy consumption for each data point (Btu)
EEiectric = Electric energy consumption during test (Btu)
N = Total number of data points, excluding extra data to account for tdeiay
7.6	Booster and Tank Heater Maximum Power
A) The idle energy input rate (i.e. maximum power) shall be calculated as specified in ASTM F1920-
11; Section 11.4 if a direct measurement of power was not taken.
1)	The value 60 provided in the equation is a conversion factor from minute to hours.
2)	This calculation shall also be used for steam.
7.7	Idle Energy Rate (Power)
A) The idle energy rate (i.e. power) shall be calculated as specified in ASTM F1920-11; Section 11.5
with the following clarification, and additions.
1)	The value 60 provided in the equation is a conversion factor from minute to hours.
2)	This calculation shall also be used for steam.
3)	If the idle energy rate (i.e. power) is reported in Btu/h, convert it to kilowatts (kW) based
on the following equation:
Equation 13: Idle Energy Rate Conversion
ri1AT\ 17	[BtW\	kW
Eme rate W = EIdlerate (—) X 3412 Btu/h
7.8	Internal Booster Heater Idle Energy Rate (Power)
A) The booster heater idle energy rate (i.e. power) shall be calculated using the same equation as
specified in ASTM F1920-11; Section 11.5 for the tank heater idle energy rate with the following
clarification and addition.
1)	The value 60 provided in the equation is a conversion factor from minute to hours.
2)	This calculation shall also be used for steam.
3)	If the internal booster heater idle energy rate (i.e. power) is reported in Btu/h, convert it to
kW based on the following equation:
Equation 14: Internal Booster Heater Idle Energy Rate Conversion
TAF\ r-	(Btu\	kW
Idle rate (&W) = EIdlerate {—) X 34fl2 Btu/h
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8 REFERENCES
A)	ASTM F857-07. Standard Specification for Hot Water Sanitizing Commercial Dishwashing
Machines, Stationary Rack Type. Published April 2007.
B)	ASTM F858-07. Standard Specification for Hot Water Sanitizing Commercial Dishwashing
Machines, Single Tank, Conveyor Rack Type. Published April 2007.
C)	ASTM F1920-11. Standard Test Method for Performance of Rack Conveyor, Commercial
Dishwashing Machines. Published July 2011.
D)	ASTM F1696-07. Standard Test Method for Energy Performance of Single-Rack, Door-Type
Commercial Dishwashing Machines. Published November 2007.
E)	NSF/ANSI 3-2010. Commercial Warewashing Equipment. November 2, 2010.NSF/ANSI 170-
2010. Glossary of Food Equipment Terminology. April 6, 2011.
F)	NSF/ANSI 170-2010. Glossary of Food Equipment Terminology. April 6, 2011.
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