ASTM F1920-11
(Test Method)Standard Test Method for Performance of Rack Conveyor, Commercial Dishwashing Machines
Standard Test Method for Performance of Rack Conveyor, Commercial Dishwashing Machines
SIGNIFICANCE AND USE
The maximum energy input rate test is used to confirm that the dishwasher is operating at the manufacturer's rated input prior to further testing. This test method also will indicate any problems with the electric power supply, gas service pressure, or steam supply flow or pressure.
Tank and booster temperatures, as well as water consumption, are adjusted to NSF specifications to insure that the test is applied to a properly functioning dishwasher.
Because much of a dishwasher's operating period is spent in the idle condition, tank heater and booster idle energy consumption rate(s) are important parts of predicting dishwasher's energy consumption.
The washing energy test determines energy usage per rack. This is useful both as a measure for comparing the energy performance of one dishwasher to another and as a predictor of the dishwashers energy consumption.
Water-consumption characterization is useful for estimating water and sewage costs associated with dishwashing machine operation.
SCOPE
1.1 This test method evaluates the energy and water consumption of rack conveyor, commercial dishwashing machines, hereafter referred to as dishwashers. Dishwashers may have remote or self-contained booster heater. This procedure does not address cleaning or sanitizing performance.
1.2 This test method is applicable to both hot water sanitizing and chemical sanitizing rack conveyor machines, which include both single tank and multiple tank machines. Dishwasher tank heaters are evaluated separately from the booster heater.
1.3 The following procedures are included in this test method:
1.3.1 Procedures to Confirm Dishwasher is Operating Properly Prior to Performance Testing:
1.3.1.1 Maximum energy input rate of the tank heaters (10.2).
1.3.1.2 Maximum energy input rate of the booster heater, if applicable (10.3).
1.3.1.3 Final sanitizing rinse water consumption calibration (10.4).
1.3.1.4 Booster temperature calibration, if applicable (10.5).
1.3.1.5 Wash tank temperature calibration (10.6).
1.3.1.6 Wash tank pump and conveyor motor calibration (10.7).
1.3.2 Energy Usage and Cycle Rate Performance Tests:
1.3.2.1 Washing energy performance test (10.8).
1.3.2.2 Tank heater idle energy rate (10.9).
1.3.2.3 Booster idle energy rate, if provided (10.10).
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F1920 − 11 AnAmerican National Standard
Standard Test Method for
Performance of Rack Conveyor, Commercial Dishwashing
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Machines
This standard is issued under the fixed designation F1920; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 This test method evaluates the energy and water con-
bility of regulatory limitations prior to use.
sumption of rack conveyor, commercial dishwashing
machines, hereafter referred to as dishwashers. Dishwashers
2. Referenced Documents
may have remote or self-contained booster heater. This proce-
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dure does not address cleaning or sanitizing performance. 2.1 ASTM Standards:
D3588Practice for Calculating Heat Value, Compressibility
1.2 This test method is applicable to both hot water sanitiz-
Factor, and Relative Density of Gaseous Fuels
ing and chemical sanitizing rack conveyor machines, which
F858Specification for Hot Water Sanitizing Commercial
include both single tank and multiple tank machines. Dish-
Dishwashing Machines, Single Tank, Conveyor Rack
washer tank heaters are evaluated separately from the booster
Type
heater.
F861Specification for Commercial Dishwashing Racks
1.3 The following procedures are included in this test
2.2 NSF Standards:
method:
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NSF/ANSI 3Commercial Warewashing Equipment
1.3.1 Procedures to Confirm Dishwasher is Operating
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NSF/ANSI 170Glossary of Foodservice Terms
Properly Prior to Performance Testing:
2.3 ASHRAE Standard:
1.3.1.1 Maximum energy input rate of the tank heaters
ASHRAE Guideline 2–1986 (RA90)Engineering Analysis
(10.2).
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of Experimental Data
1.3.1.2 Maximum energy input rate of the booster heater, if
applicable (10.3).
3. Terminology
1.3.1.3 Final sanitizing rinse water consumption calibration
(10.4).
3.1 Definitions of Terms Specific to This Standard:
1.3.1.4 Boostertemperaturecalibration,ifapplicable(10.5).
3.1.1 booster heater, n—water heater for taking supply hot
1.3.1.5 Wash tank temperature calibration (10.6).
water (typically 140°F) up to 180°F+ for sanitizing rinse; the
1.3.1.6 Wash tank pump and conveyor motor calibration
booster heater may be separate from dishwasher or integral.
(10.7).
3.1.2 batch, n—a group of five dishloads as described in
1.3.2 Energy Usage and Cycle Rate Performance Tests:
3.1.4.
1.3.2.1 Washing energy performance test (10.8).
3.1.2.1 Discussion—The dishracks are grouped into batches
1.3.2.2 Tank heater idle energy rate (10.9).
to better simulate typical in-kitchen operation and facilitate
1.3.2.3 Booster idle energy rate, if provided (10.10).
consistent application of the washing energy use test.
1.4 The values stated in inch-pound units are to be regarded
3.1.3 cycle rate, n—maximum production rate of a dish-
as standard. The values given in parentheses are mathematical
washer when washing dishloads in accordance with the Cycle
conversions to SI units that are provided for information only
Rate Performance test.
and are not considered standard.
1.5 This standard does not purport to address all of the
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safety concerns, if any, associated with its use. It is the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
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This test method is under the jurisdiction of ASTM Committee F26 on Food the ASTM website.
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Service Equipment and is the direct responsibility of Subcommittee F26.06 on Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd.,Ann
Productivity and Energy Protocol. Arbor, MI 48113-0140, http://www.nsf.org.
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CurrenteditionapprovedJune1,2011.PublishedJuly2011.Originallyapproved Available from American Society of Heating, Refrigerating, and Air-
in 1998. Last previous edition approved in 2007 as F1920–07. DOI: 10.1520/ Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA
F1920-11. 30329, http://www.ashrae.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F1920 − 11
3.1.4 dishload, n—peg-type, polypropylene dishrack of a 4.4 The tank heater energy rate is determine at idle, that is,
specified weight, loaded with ten 9-in. plates of a specified whenthetanktemperatureisbeingmaintained,butnowashing
weight,usedtoputathermalloadonthedishwasherduringthe is taking place.
washing energy test.
4.5 Booster heater idle en
...
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