Energy Conservation Program for Consumer Products: Test Procedure for Kitchen Ranges, Cooktops, Ovens, and Microwave Ovens

SUMMARY: The Department of Energy (DOE or the Department) is amending

its test procedure for kitchen ranges, cooktops, ovens, and microwave

ovens. Generally, this rulemaking incorporates portions of the

International Electrotechnical Commission Standard 705 and Amendment 2

thereto, and updates the annual useful cooking energy for kitchen

ranges, cooktops, ovens, and microwave ovens.

EFFECTIVE DATES: This rule is effective November 3, 1997. The

incorporation by reference of portions of International

Electrotechnical Commission Standard 705 (referred to as IEC 705) and

Amendment 2 thereto (referred to as Amendment 2) as referenced below is

approved by the Director of the Federal Register as of November 3,

1997.

ADDRESSES: The Department of Energy (DOE or the Department) is

incorporating by reference the following industry consensus test

standard upon publication of this final rule.

1. IEC 705, ``Methods for Measuring the Performance of Microwave

Ovens for Household and Similar Purposes,'' Section 4, Methods of

Measurement, Paragraph 13 ``Electrical Power Input Measurement,'' and

Paragraph 14 ``Efficiency'' (1988).

2. IEC 705, Amendment 2, ``Methods for Measuring the Performance of

Microwave Ovens for Household and Similar Purposes,'' Section 4,

Methods of Measurement, Paragraph 12 ``Microwave Power Output

Measurement'' (1993).

Documents incorporated by reference may be viewed at the Department

of Energy Freedom of Information Reading Room, U.S. Department of

Energy, Forrestal Building, Room 1E-190, 1000 Independence Avenue, SW,

Washington, DC 20585, (202) 586-3142, between the hours of 9:00 a.m.

and 4:00 p.m., Monday through Friday, except Federal holidays. Copies

of the International Electrotechnical Commission publications can be

obtained from the American National Standards Institute, 11 West 42nd

Street, New York, New York 10036, (212) 642-4936.

FOR FURTHER INFORMATION CONTACT: Terry Logee, U.S. Department of

Energy, Office of Energy Efficiency and Renewable Energy, Mail Station

EE-43, Forrestal Building, 1000 Independence Avenue, S.W., Washington,

D.C. 20585-0121, (202) 586-1689, FAX (202) 586-4617,

[email protected].

Francine Pinto, Esq., U.S. Department of Energy, Office of General

Counsel, Mail Station GC-72, Forrestal Building, 1000 Independence

Avenue, S.W., Washington, D.C. 20585-0103, (202) 586-7432,

[email protected].

SUPPLEMENTARY INFORMATION:

I. Introduction

A. Background

II. Discussion

A. Cooking Appliances Generally

B. Cooktops, Ranges, and Ovens

C. Microwave Ovens

III. Determination Concerning the Impact of the Amended Test

Procedure on Standards

IV. Procedural Requirements

A. Review Under the National Environmental Policy Act of 1969

B. Review Under Executive Order 12866, ``Regulatory Planning and

Review''

C. Review Under the Regulatory Flexibility Act of 1980

D. ``Takings'' Assessment Review

E. Federalism Review

F. Review Under Section 32 of the Federal Energy Administration

Act of 1974

G. Review Under the Paperwork Reduction Act of 1980

H. Review Under Executive Order 12988, ``Civil Justice Reform''

I. Review Under the Unfunded Mandates Reform Act of 1995

J. Congressional Notification

I. Introduction

A. Background

Part B of Title III of the Energy Policy and Conservation Act, as

amended (EPCA or the Act), establishes the Energy Conservation Program

for Consumer Products Other Than Automobiles (Program).1 The

products currently subject to this Program (often called hereafter

``covered products'') include kitchen ranges, cooktops, ovens, and

microwave ovens, which are the subject of today's notice.

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\1\ Part B of Title III of EPCA, as amended, is referred to in

this final rule as ``EPCA'' or the ``Act.'' Part B of Title III has

been redesignated as Part A for purposes of codification. It is

codified at 42 U.S.C.

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Under the Act, the Program consists essentially of three parts:

testing, labeling, and Federal energy conservation standards. The

Department, in consultation with the National Institute of Standards

and Technology (formerly the National Bureau of Standards), is required

to amend or establish new test procedures as appropriate for each of

the covered products. Section 323 of EPCA, 42 U.S.C. 6293. The purpose

of test procedures is to produce test results which measure energy

efficiency, energy use, water use (in the case of showerheads, faucets,

water closets and urinals), or estimated annual operating cost of a

covered product during a representative average use cycle or period of

use. The test procedure must not be unduly burdensome to conduct.

Section 323 (b)(3) of EPCA, 42 U.S.C. 6293 (b)(3).

DOE is required to determine to what extent, if any, an amended

test procedure would alter the measured energy efficiency, measured

energy use, or measured water use of any covered product as determined

under the existing test procedure. Section 323(e)(1) of EPCA, 42 U.S.C.

6293(e)(1).

One hundred and eighty days after a test procedure for a product is

prescribed or established, no manufacturer, distributor, retailer, or

private labeler may make representations with respect to energy use,

efficiency, or the cost of energy consumed by products covered by this

rule, except as reflected in tests conducted according to the new or

amended DOE test procedure and such representations fairly disclose the

results of such tests. Section 323(c)(2) of EPCA, 42 U.S.C. 6293(c)(2).

Thus, beginning on April 1, 1998, representations with respect to the

products covered by this rule must be consistent with this amended test

procedure.

On May 10, 1978, the Department published the current test

procedure for conventional ranges, cooking tops, ovens, and microwave/

conventional ranges, 43 FR 20120. These procedures are codified at 10

CFR Part 430, Subpart B, Appendix I. On March 23, 1995, (60 FR 15330),

DOE published a proposed rule to amend the current test procedure.

On July 23, 1997, DOE made available to the public copies of a

version of this final rule issued on July 17, 1997. That version was

not published in the Federal Register. Today, DOE publishes this final

rule as a substitute for the version issued on July 17, 1997. Today's

final rule contains clarifying, non-substantive changes from the

version distributed in July.

[[Page 51977]]

II. Discussion

A. Cooking Appliances Generally

1. Combined Component Efficiency

DOE proposed to sum the efficiencies of components to calculate the

efficiency of combined components (range, microwave/oven or microwave/

range). Two commenters stated that the calculation of energy efficiency

for all combined components was incorrect in the proposed test

procedure. (AHAM, No. 3 at 3; No. 33 Attachment 2 at 2; July 12, 1995

transcript at 46; Whirlpool, No. 28 at 2.) 2

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\2\ Written comments will be referenced by their assigned

number.

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DOE has corrected the proposed section 4.3, ``Combined

Components,'' by removing the requirement to add efficiencies for

combined components. The Final Rule provides no method for calculating

the efficiencies for combined components because appropriate usage

factors could not be determined.

2. Surface Temperature Probe Tolerance

DOE proposed that the tolerance for the surface temperature probe,

Section 2.9.3.5, ``Temperature Indicator System for Measuring Surface

Temperatures,'' should be changed to 0.45 deg.F. Several

commenters, stated that the surface temperature probe tolerance of

0.45 deg.F for surface temperature measurement is overly

strict and that the tolerance should be 1 deg.F as stated

in the existing test procedure. (Weizeorick, No.3 at 2; July 12, 1995

Transcript at 45; Whirlpool, No. 28 at 2; and AHAM, No. 33 Attachment 2

at 2.) DOE agrees with these comments and will continue to use a

tolerance of 1 deg.F for the surface temperature probe.

3. Comments Regarding Energy Conservation Standards for Cooking

Products

Several commenters included statements on issues concerning

standards for cooking products in their written comments. (Whirlpool,

No. 28 at 2-3; Weizeorick, No. 3 at 6; Donovan et al., No. 47 at 1-2;

AHAM, No. 33 at 2, Attachment 3A and Attachment 3C at 6 and 10; Sharp

Electronics, No. 40 at 13.) However, this rulemaking is strictly

limited to promulgating test procedures for cooktops, ranges, ovens and

microwave ovens. Therefore, these comments are outside the scope of

this proceeding and will be addressed in the rulemaking entitled;

``Final Rule Regarding Energy Conservation Standards for Kitchen

Ranges, Ovens, and Microwave Ovens,'' Docket No. EE-RM-93-201.

B. Cooktops, Ranges and Ovens

1. Annual Useful Cooking Energy

In the proposed rule, DOE proposed to modify the annual useful

cooking energy from the existing test procedure for each product class

to reflect the change in cooking trends in the United States as

follows: electric ovens from 47.09 kWh/yr (169.5 MJ/yr) to 35.5 kWh/yr

(105.5 MJ/yr), gas ovens from 160.7 kBtu/yr (169.547 kJ/yr) to 124.2

kBtu/yr (131,038 kJ/yr), electric cooktops from 277.7 kWh/yr (1000 MJ/

yr) to 209.4 kWh/yr (752.4 MJ/yr), gas cooktops from 947.5 kBtu/yr

(999,600 kJ/yr) to 732.5 kBtu/yr (772,800 kJ/yr).

Several commenters contended that the proposed rule overstated the

annual energy use of cooktops, ovens, and ranges. (AHAM, July 12, 1995

transcript at 38, 42-44, 47-48; Weizeorick, No. 3 at 1-3, 5; American

Gas Association, No. 25 at 4-5; Whirlpool No. 28 at 1-2; Battelle, No.

46 at 2-6.) AHAM and Whirlpool commented that the annual energy

consumption of electric cooktops should be lowered from 209.4 kWh/yr to

157.0 kWh/yr based on a Northern Illinois Gas Study. (AHAM, No. 33 at 2

and Whirlpool, No. 28 at 1.)

In response to these comments, the Lawrence Berkeley National

Laboratory (LBNL) analyzed an extensive collection of studies including

those identified by commenters to obtain today's revised values of

annual useful cooking energy. The studies analyzed include: Gas

Research Institute Report: ``Topical Report, Metered Ranges, Cooktops,

and Ovens in the Northern Illinois Gas Residential Load Study Data

Base,'' GRI-93/0204, July 1993; ``Electric Oven and Cooktop Data

Analysis,'' prepared for the Association of Home Appliance

Manufacturers by Arthur D. Little, Reference 47066, July 15, 1994;

Electric Power Research Institute (CU-6952), ``Residential Energy Usage

Comparison Project: An Overview,'' October 1990; Lawrence Berkeley

National Laboratory (LBL-33717), ``Baseline Data for the Residential

Sector and Development of a Residential Forecasting Database,'' May

1994; Electric Power Research Institute (CU-7392), ``Residential Energy

Usage Comparison: Findings,'' August 1991; and Electric Power Research

Institute (CU-6487), ``Residential End-Use Energy Consumption: A Survey

of Conditional Demand and Estimates,'' October 1989. Copies of these

studies are available for inspection in DOE's Freedom of Information

Reading Room.

Based on the data from the above-referenced studies, DOE calculated

a weighted average of the annual useful cooking energy for all cooking

products. For estimates of annual useful cooking energy for

conventional electric cooktops and ovens, and also for gas cooktops and

ovens, only the latest metered data were included. Data used in the

analysis shows the trend in cooking usage has been downward and shows

indications that there are regional differences and year-to-year

fluctuations in cooking usage. No regional effects were included in

this analysis.

Accordingly, DOE has lowered the annual useful cooking energy of

each product class in this final rule to make it representative of

current United States cooking patterns. These quantities are being

lowered to 29.3 kWh/yr for electric ovens, 88.8 kBtu/yr for gas ovens,

173.1 kWh/yr for electric cooktops and 527.6 kBtu/yr for gas cooktops.

2. Elimination of Continuous Flow Calorimeter

In the proposed rule, the Department eliminated the requirement to

use a standard continuous flow calorimeter for gas cooking products

because of the limited availability of this instrument. This change was

favorably received by all commenters. (Weizeorick, No. 3 at 2 and

Whirlpool, No. 28 at 2.)

In the final test procedure, DOE allows the manufacturer to choose

the instrument to be substituted for the standard continuous flow

calorimeter. Additionally, DOE requires in section 2.9.4, ``Heating

Value,'' that the heating value of natural or propane gas shall be

measured with an instrument and associated indicator readout device of

a maximum error no greater than .5 percent of the measured

value and a resolution of .2 percent or less of the full

scale reading of the indicator instrument.

3. Convection Mode Testing

In the proposed test procedure, DOE added sections 3.2.1,

``Conventional oven test energy consumption'' and subsection 3.3.5 of

section 3.3, ``Recorded Values,'' to include convection mode testing.

AHAM, Weizeorick and Whirlpool supported these changes in the final

test procedures. (Weizeorick, No. 3 at 4; Whirlpool, No. 33 Attachment

2 at 3; July 12, 1995 transcript at 47; Whirlpool, No. 28 at p.2). In

the final test procedure, DOE adopted the changes as originally

proposed.

4. Electric Clock

DOE proposed that during testing, the electrical clock which uses

energy continuously be disconnected, except for microwave ovens.

Weizeorick states that it is impossible to disconnect an

[[Page 51978]]

electric clock for ranges that have circuits which control the oven and

cooktop unit temperatures in conjunction with a clock. (Weizeorick, No.

3 at 4, AHAM, No. 33 Attachment 2 at 2; July 12, 1995 transcript at 46-

47.)

DOE agrees that several ranges employ circuits which control the

oven and cooktop unit temperatures in conjunction with a clock that

cannot be disconnected. Therefore, several sections of the final test

procedure have been modified to address this issue. Section 3.2.1.4,

``Clock Power.'' is modified to state that the power rating or the

measurement of a continuously operating clock that is an integral part

of the timing or temperature control circuit which cannot be

disconnected during the test may be multiplied by the applicable test

period to obtain test energy consumption in watt-hours (kJ). This

procedure is used to calculate annual clock energy consumption for

electric clocks that cannot be disconnected. Language has also been

added to the following sections to subtract the energy consumed by the

clock during testing when the clock cannot be disconnected: Section

2.1, ``Installation''; section 3.2.1, ``Conventional oven test energy

consumption''; section 3.2.1.1, ``Conventional oven average test energy

consumption''; section 3.2.1.2, ``Energy consumption of self-cleaning

operation'; section 3.2.1.4, ``Clock power''; and section 3.2.2,

``Conventional surface unit test energy consumption.''

5. Number of Self-Cleaning Oven Cycles Per Year

In the existing and proposed test procedure, section 4.1.2.3.1,

``Annual primary energy consumption'' and section 4.1.2.3.2, ``Annual

secondary energy consumption for self-cleaning operation of gas

ovens,'' DOE uses 11 self-cleaning cycles per year for electric ovens

and 7 for gas ovens.

Two commenters stated that DOE's number of self-cleaning cycles of

11 and 7 for gas and electric ovens respectively were too high and it

should be 4 for both electric and gas ovens as reflected in internal

marketing data. (Weizeorick, No. 3 at 2-3; AHAM, No. 33, Attachment 2

at 2, July 12, 1995 transcript at 45-46; Whirlpool, No. 28 at 2.) In

response to several comments, DOE has reduced the number of self-

cleaning oven cycles per year for gas and electric ovens. DOE agrees

with the figures used by the Gas Research Institute in a 1994 Gas

Research Institute Topical Report (GRI-94/0195) and has changed the

number of self-cleaning cycles per year to 4 for gas and electric

ovens.

6. Change of Symbol Representing Number of Hours Per Year--

HK

In the existing and proposed test procedure, DOE uses the symbol

``HK'' to represent the number of hours in a year.

Weizeorick commented that the symbol ``HK'' in section

4.1.2.4, ``Annual clock energy consumption'' should be changed to ``A''

because the symbol ``H'' is traditionally used to represent heating

values. (Weizeorick, No. 3 at 4.) DOE agrees and is substituting the

character ``A'' for ``HK'' in sections 4.1.2.4, ``Annual

clock energy consumption'' and 4.2.2.2, ``Annual energy consumption of

any continuously burning gas pilots.''

7. Editorial Error in Section 3.1.1, ``Conventional Oven''

DOE has corrected an editorial error in section 3.1.1, paragraph 2.

The following language has been changed: ``If the oven * * *, (180.6

deg.C) air temperature'' to ``If the oven * * *, (180.6 deg.C) higher

than the room ambient air temperature.''

C. Microwave Ovens

1. Annual Useful Cooking Energy

In its Proposed Rule, DOE proposed to modify the annual useful

cooking energy from the existing test procedure for microwave ovens to

reflect the change in cooking trends in the United States. Use of

microwave ovens was proposed to be increased from 34.2 kWh/yr (123 MJ/

yr) to 77.3 kWh/yr (278.3 MJ/yr).

Several commenters contended that the proposal overstated the

annual energy consumption of microwave ovens. (AHAM, No. 33 Attachment

2 at 3; Whirlpool, No. 28 at 2-3). Joy Weis Daniel, representing both

AHAM and Sharp Electronics Company, stated that DOE should use 100 kWh/

yr for annual energy consumption of microwave ovens based on an average

of several metered studies. Their recommendation was based on metered

studies which included: the Sierra Pacific EIP Study 1988, Southern

California Edison 1990, Southern California Edison 1991, Utility

Estimates Study 1991, and three studies reported in baseline data 1994.

(Daniel, No. 4 at 6; AHAM, No. 33, Attachment 3B; Sharp, No. 40 at 7-9

and Exhibit C.)

In response to these comments, LBNL analyzed the microwave oven

studies including those identified by commenters. The studies analyzed

include: American Electric Power (AEP)/Residential Energy Consumption

Survey (RECS), AEP Report ``Utility Estimates of Household Appliance

Electricity Consumption,'' March 16, 1992, reported in RECS ``Household

Energy Consumption and Expenditures 1990,'' DOE/EIA-0321(90), February

1993; Southern California Edison, ``Residential Appliance End-Use

Survey'' for 1990 and 1991; and the 1988 Sierra Pacific EIP Study

included in the Electric Power Research Institute (CU-6487),

``Residential End-Use Energy Consumption: A Survey of Conditional

Demand and Estimates,'' October 1989. Copies of these studies are

available for inspection in DOE's Freedom of Information Reading Room.

Based on the data from the above-referenced studies, DOE calculated

a weighted average of the annual useful cooking energy for microwave

ovens. For the estimate of annual useful cooking energy, both

conditional demand analyses (CDA) and metered study data were included

due to the limited data available. Since the metered studies are only

from California, the Department believes it is necessary to include the

CDA studies to get broader national representation including New York,

Florida, Maryland and Texas. This analysis shows that annual useful

cooking energy for microwave ovens is 79.8 kWh/yr. Today's final test

procedure reflects this revised value.

2. Microwave Clock Energy

In the proposed rule, DOE included the clock energy in the

calculation of annual energy consumption for microwave ovens. It

accomplished this by incorporating paragraph 12 of IEC 705 Amendment 2-

1993, ``Microwave Power Output Measurement.'' No comments were

received. The final rule remains unchanged from the proposed rule.

3. Amend the DOE Test Procedure To Reference Portions of IEC 705 and

Amendment 2

In the proposed rule, a definition of IEC 705 was added in section

1.5 and several sections of the test procedure were amended to

reference portions of IEC 705 or Amendment 2 as follows: (1) Section

2.1.3, ``Microwave Ovens''; (2) section 2.5, ``Ambient Room Air

Temperature''; (3) new section 2.8, ``Microwave Oven Test Load''; (4)

section 2.9.3.1, ``Room Temperature Indicating System''; (5) section

2.9.3.4, ``Test Load Temperature''; (6) section 2.9.5, ``Scale''; (7)

new section 3.1.3.1, ``Microwave Oven Test Energy or Power Output'';

(8) section 3.2.3, ``Microwave Oven Test Energy Consumption and Power

Input''; (9) section 4.4.2, ``Microwave Oven Test Power Output''; and

(10) section 4.4.4, ``Microwave Oven Cooking Efficiency.'' The final

rule reflects these changes. No

[[Page 51979]]

comments were received on these proposed changes.

4. Editorial Error in Section 4.4.1

In the proposed test procedure, the equation in section 4.4.1,

``Microwave oven test energy'', yields an answer that is incorrect by a

factor of 1000. DOE corrected this problem in the final test procedure

by changing the conversion factor ``HE'' from

``HE=(3.412 Btu/Wh) 3.6 kJ/Wh to ``HE=(3,412 Btu/

kWh) 3,600 kJ/kWh.''

5. Usage of Watt Meter and Watt-Hour Meter

DOE proposed the continued use of a watt-hour meter during

microwave oven operation to measure energy consumption, also known as

energy input, while performing the test procedure. DOE stated that the

watt-hour meter is more accurate than a watt meter. The watt-hour meter

measures all transient energy,\3\ whereas the watt meter does not.

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\3\ Transient energy is the energy consumed to warm up the

magnetron and any fluctuations during microwave use.

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Several commenters disagreed with DOE's decision to use a watt-hour

meter to determine the energy consumption of microwave ovens. AHAM took

the position that a watt meter is sufficient to measure energy

consumption. It contended that the power measured by the watt meter

multiplied by the duration of the test, which is measured by the stop

watch or timer, will yield an accurate measurement of energy

consumption. (AHAM, No. 33, Attachment 3A and Attachment 3C; July 12,

1995 transcript at 62.) Sharp Electronics Corporation argued that DOE's

claim that the watt-hour meter is more accurate is not supported by

data. (Sharp, No. 40 at 5; July 12, 1995 transcript at 60.)

None of the commenters provided any data to demonstrate that the

energy consumption calculation based on measurements from a watt meter

and timer are comparable in accuracy to those derived directly from a

watt-hour meter. Since a watt meter, as is used in IEC 705 to measure

power, measures instantaneous power, an accurate energy calculation

based on watts measured by a watt meter can only be made by summing

instantaneous power measurements over small time increments, thus

capturing the energy transients and mimicking a watt-hour meter. While

it is possible to calculate energy consumption from measurements of

power and time, the IEC test procedure itself does not contain a

requirement to determine energy consumption nor does it provide a

procedure for making that calculation. The Department believes the more

appropriate, more accurate, and less burdensome way to measure energy

consumption is by using a watt-hour meter rather than measuring power

using a watt meter and a calculation procedure to determine energy

consumption. Moreover, the watt-hour meter is typically used to measure

electricity use in homes and commercial buildings.

6. Application of the ``Agreement on Technical Barriers to Trade''

Requiring Incorporation of IEC Standard 705

Sharp Electronics Corporation contends that DOE is legally

obligated to incorporate IEC 705 and Amendment 2. Sharp relies upon

Article 2.4 in the ``Agreement on Technical Barriers to Trade,''

(Agreement) a part of the ``World Trade Organization Agreement,'' to

make its argument. Article 2.4 provides that where technical

regulations are required and relevant international standards exist or

their completion is imminent, member nations shall use such standards

as a basis for their technical regulations, with certain exceptions.

Sharp claims that IEC 705 constitutes an international technical

standard applicable to measuring energy efficiency of microwave ovens.

(Sharp, No. 40 at 4-6 and Exhibit B.)

Article 2.4 does not apply to the promulgation of a test procedure.

The definition of ``technical regulation'' within the Agreement refers

to mandatory product standards. Because a test procedure does not

establish product standards, but rather provides the basis for

evaluating whether a product meets a standard, a test procedure is not

a technical regulation within the definition set forth in the

Agreement. Therefore, this test procedure is not subject to the

application of Article 2.4.

That DOE's rule incorporates the relevant parts of IEC 705 and

Amendment 2 and uses that international test procedure as a basis for

its test procedure makes it consistent with Article 5.4 of the

``Agreement on Technical Barriers to Trade,'' the controlling provision

on test procedures. Article 5.4 provides that members use the

``relevant parts'' of guides or recommendations issued by international

standardizing bodies ``as a basis for their conformity assessment

procedures'' (defined by the agreement to include test procedures).

The U.S. World Trade Organization (WTO), Technical Barriers to

Trade (TBT) enquiry point (National Institute of Standards and

Technology) notified the WTO Secretariat of DOE's proposed rule

pursuant to Article 2.9.2 of the TBT agreement entitled, ``Notify

Members Through the Secretariat of the Products to be Covered by the

Proposed Technical Regulation.'' No comments were received by the U.S.

TBT enquiry point.

7. Using IEC 705 Updates To Automatically Amend DOE's Final Test

Procedure

DOE proposed to incorporate paragraphs 13 and 14 of the 1988

version of IEC 705 and paragraph 12 of IEC 705, Amendment 2, 1993.

Whirlpool commented that DOE should automatically accept changes to the

IEC standard as they occur. Whirlpool stated that ``DOE references to

the IEC 705 should be referred to as `the latest reference' '' in order

to avoid time consuming notice and comment rulemaking each time

``minor'' changes to the IEC test procedure occur. (Whirlpool, No. 28

at 3.) DOE does not accept Whirlpool's suggestion because adopting the

language ``latest reference'' is overly broad and would sweep into the

test procedure major as well as ``minor'' changes to the IEC test

procedure. Therefore, in this final rule, DOE references the specific

version and amendment of the IEC 705 as stated above.

8. Incorporation by Reference of Portions of IEC 705 and Amendment 2

DOE proposed to incorporate by reference paragraphs 13 and 14 of

IEC 705 and paragraph 12 of Amendment 2. Two commenters supported DOE's

proposal to incorporate by reference portions of IEC 705 and Amendment

2. (AHAM, No. 33 at 2; Whirlpool, No. 28 at 2.) Several commenters,

however, took the position that DOE should incorporate IEC 705 in its

entirety. (AHAM, No. 33, Attachment 3A and Attachment 3C; Sharp, No. 40

at 3.) DOE did not incorporate IEC 705 in its entirety because it

contains other test methods such as heating, cooking and defrosting

performance that are not relevant to energy consumption for microwave

ovens.

In today's final test procedure , DOE is adopting those portions of

IEC 705 and Amendment 2 that are pertinent to its test procedure for

microwave ovens. This incorporation by reference is found at Section

430.22, ``Reference Sources.''

The Department is also amending section 430.22, Reference Sources,

by adding paragraph (b)(5), ASHRAE standards. These standards were

previously incorporated by reference in a final rule on Furnace Test

procedures

[[Page 51980]]

published May 12, 1997 (62 FR 26140). In a Final Rule published May 29,

1997 (62 FR 29222), section 430.22 was amended and the furnace

standards previously incorporated by reference were removed. Therefore,

this rulemaking is correcting section 430.22 to include the standards

previously removed.

III. Determination Concerning the Impact of the Amended Test Procedure

on Standards

Section 323(e)(1) of EPCA requires that the Department determine to

what extent an amended test procedure would alter the measured energy

efficiency or measured energy use of kitchen ranges, ovens, cooktops or

microwave ovens as compared with the existing test procedure. The

Department has determined that the changes in annual useful cooking

energy will decrease calculated annual energy use for electric ovens

and cooktops by about 62 percent and for gas ovens and cooktops by

about 55 percent. The change in annual useful cooking energy for

microwave ovens will result in a 233 percent increase in their

calculated annual energy use. Because there are currently no energy

efficiency or energy consumption standards, no modification to

standards is required under Section 323(e)(2) of EPCA.

IV. Procedural Requirements

A. Review Under the National Environmental Policy Act of 1969

In this rule, the Department will finalize amendments to test

procedures that may be used to implement future energy conservation

standards for kitchen ranges, cooktops, ovens, and microwave ovens. The

Department has determined that this rule falls into a class of actions

that are categorically excluded from review under the National

Environmental Policy Act of 1969, 42 U.S.C. 4321 et seq. The rule is

covered by Categorical Exclusion A5, for rulemakings that interpret or

amend an existing rule without changing the environmental effect, as

set forth in the Department's NEPA regulations at Appendix A to Subpart

D, 10 CFR part 1021. This final rule will not affect the quality or

distribution of energy usage and, therefore, will not result in any

environmental impacts. Accordingly, neither an environmental impact

statement or an environmental assessment is required.

B. Review Under Executive Order 12866, ``Regulatory Planning and

Review''

Today's final rule is not a ``significant regulatory action'' under

Executive Order 12866, ``Regulatory Planning and Review.'' 58 FR 51735

(October 4, 1993). Accordingly, today's action was not subject to

review under the Executive Order by the Office of Information and

Regulatory Affairs.

C. Review Under the Regulatory Flexibility Act of 1980

The Regulatory Flexibility Act, 5 U.S.C. 601-612, requires that an

agency prepare an initial regulatory flexibility analysis for any rule,

for which a general notice of proposed rulemaking is required, that

would have a significant economic effect on small entities unless the

agency certifies that the rule, if promulgated, will not have a

significant economic impact on a substantial number of small entities.

5 U.S.C. 605. In the notice of proposed rulemaking, DOE determined that

the test procedures would not have a significant economic impact, but

rather would provide common testing methods. Therefore, DOE certified

that the proposed rule would not if promulgated have a significant

economic impact on a substantial number of small entities and that

preparation of a regulatory flexibility analysis was not warranted. DOE

did not receive any comments on the certification.

D. ``Takings'' Assessment Review

DOE has determined pursuant to Executive Order 12630,

``Governmental Actions and Interference with Constitutionally Protected

Property Rights,'' 53 FR 8859 (March 18, 1988), that this regulation,

if adopted, would not result in any takings which might require

compensation under the Fifth Amendment to the United States

Constitution.

E. Federalism Review

Executive Order 12612, ``Federalism,'' 52 FR 41685 (October 30,

1987), requires that regulations, rules, legislation, and any other

policy actions be reviewed for any substantial direct effects on

States, on the relationship between the Federal Government and the

States, or in the distribution of power and responsibilities among

various levels of Government. If there are substantial direct effects,

then the Executive Order requires preparation of a Federalism

assessment to be used in all decisions involved in promulgating and

implementing a policy action.

The final rule published today would not regulate the States.

Accordingly, DOE has determined that preparation of a Federalism

assessment is unnecessary.

F. Review Under Section 32 of the Federal Energy Administration

Authorization Act of 1974

The test procedure amended today incorporates the International

Electrotechnical Commission Publication 705, ``Methods for Measuring

the Performance of Microwave Ovens for Household and Similar

Purposes,'' Paragraph 13 ``Electrical Power Input Measurement,'' and

Paragraph 14 ``Efficiency,'' and Amendment 2-1993, Section 4, Paragraph

12 ``Microwave Power Output Measurement,'' to determine the output

power and efficiency for microwave ovens.

Pursuant to Section 301 of the Department of Energy Organization

Act (Pub. L. 95-91), DOE is required to comply with Section 32 of the

Federal Energy Administration Act of 1974, 15 U.S.C. 788. The

Department of Energy is required by Section 32 to notify the public

regarding the proposed use of commercial standards in a rulemaking and

allow interested persons to make known their views regarding the

appropriateness of the use of any particular commercial standard in a

notice of proposed rulemaking.

DOE included an invitation for public comment in the notice of

proposed rulemaking. Commenters supported the inclusion of IEC 705 and

Amendment 2-1993 in the test procedure and no adverse comments were

received (see Section II.C.8).

In addition, section 32(c) precludes the Department from

incorporating any commercial standard into a rule unless it has

consulted with the Attorney General and the Chairman of the Federal

Trade Commission (FTC) as to the impact of such standard on

competition, and neither individual recommends against its

incorporation or use. Pursuant to section 32(c), the Department advised

these individuals of its intention to incorporate portions of the

above-referenced standards into this final rule. Neither recommended

against such incorporation.

G. Review Under the Paperwork Reduction Act of 1980

No new information or record keeping requirements are imposed by

this rulemaking. Accordingly, no OMB clearance is required under the

Paperwork Reduction Act, 44 U.S.C. 3501 et seq.

H. Review Under Executive Order 12988, ``Civil Justice Reform''

With respect to the review of existing regulations and the

promulgation of new regulations, section 3(a) of

[[Page 51981]]

Executive Order 12988, ``Civil Justice Reform,'' 61 FR 4729 (February

7, 1996), imposes on executive agencies the following requirements: (1)

Eliminate drafting errors and ambiguity; (2) write regulations to

minimize litigation; and (3) provide a clear legal standard for

affected conduct rather than a general standard and promote

simplification and burden reduction. With regard to the review required

by section 3(a), section 3(b) of the Executive Order specifically

requires that Executive agencies make every reasonable effort to ensure

that the regulation: (1) Clearly specifies the preemptive effect, if

any; (2) clearly specifies any effect on existing Federal law or

regulation; (3) provides a clear legal standard for affected conduct

while promoting simplification and reducing burdens; (4) specifies the

retroactive effect, if any; (5) adequately defines key terms; and (6)

addresses other important issues affecting clarity and general

draftsmanship under any guidelines issued by the Attorney General.

Section 3(c) of the Executive Order requires Executive agencies to

review regulations in light of applicable standards in sections 3(a)

and 3(b) to determine whether they are met or it is unreasonable to

meet one or more of them. DOE reviewed today's rule under the standards

of section 3 of the Executive Order and determined that, to the extent

permitted by law, it meets the requirements of those standards.

I. Review Under the Unfunded Mandates Reform Act of 1995

Title II of the Unfunded Mandates Reform Act of 1995 (the Act), 2

U.S.C. 1531 et seq., requires each Federal agency, to the extent

permitted by law, to prepare a written assessment of the effects of any

Federal mandate in a final agency rule that may result in the

expenditure by State, local, and tribal governments, in the aggregate,

or by the private sector, of $100 million or more (adjusted annually

for inflation) in one year.

The Department has determined that this final rule does not include

any requirements that would result in the expenditure of money by

State, local, and tribal governments. It also would not result in costs

to the private sector of $100 million or more in any one year.

Therefore, the requirements of the Unfunded Mandates Reform Act of 1995

do not apply to this rulemaking.

J. Congressional Notification

Consistent with Subtitle E of the Small Business Regulatory

Enforcement Fairness Act of 1996, 5 U.S.C. 801-808, DOE will submit to

Congress a report regarding the issuance of today's final rule prior to

the effective date set forth at the outset of this notice. The report

will note the Office of Management and Budget's determination that this

rule does not constitute a ``major rule'' under that Act. 5 U.S.C. 801,

804.

List of Subjects in 10 CFR Part 430

Administrative practice and procedure, Energy conservation,

Household appliances, Incorporation by reference.

Issued in Washington, DC, on September 22, 1997.

Joseph J. Romm,

Acting Assistant Secretary, Energy Efficiency and Renewable Energy.

For the reasons set forth in the preamble, Part 430 of Chapter II

of Title 10, of the Code of Federal Regulations is amended as follows:

PART 430--ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS

1. The authority citation for Part 430 continues to read as

follows:

Authority: 42 U.S.C. 6291-6309.

2. Section 430.22 is amended by revising paragraph (a)(1) and

adding paragraph (b)(4) and (b)(5) as follows:

Sec. 430.22 Reference Sources.

(a) Materials incorporated by reference.--(1) General. The

following standards which are not otherwise set forth in Part 430 are

incorporated by reference and made a part of Part 430. The standards

listed in this section have been approved for incorporation by

reference by the Director of the Federal Register in accordance with 5

U.S.C. 552(a) and 1 CFR Part 51. The specified versions of the

standards are incorporated, and any subsequent amendment to a standard

by the standard-setting organization will not affect the DOE test

procedures unless and until those test procedures are amended by DOE.

(2) * * *

(b)(1) * * *

(2) * * *

(3) * * *

(4) International Electrotechnical Commission. Copies of the

International Electrotechnical Commission Publications can be obtained

from the American National Standards Institute, 11 West 42nd Street,

New York, New York 10036, (212) 642-4936.

1. IEC 705, ``Methods for Measuring the Performance of Microwave

Ovens for Household and Similar Purposes,'' Section 4, Methods of

Measurement, Paragraph 13 ``Electrical Power Input Measurement,'' and

Paragraph 14 ``Efficiency'' (1988).

2. IEC 705, Amendment 2, ``Methods for Measuring the Performance of

Microwave Ovens for Household and Similar Purposes,'' Section 4,

Methods of Measurement, Paragraph 12 ``Microwave Power Output

Measurement'' (1993).

(5) American Society of Heating, Refrigerating and Air-Conditioning

Engineers, Inc., Publication Sales, 1791 Tullie Circle, NE, Atlanta, GA

30329, (1-800-5-ASHRAE).

1. American National Standards Institute/American Society of

Heating, Refrigerating, and Air-Conditioning Engineers Standard 103-

1993, ``Methods of Testing for Annual Fuel Utilization Efficiency of

Residential Central Furnaces and Boilers,'' (with Errata of October 24,

1996) except for sections 3.0, 7.2.2.5, 8.6.1.1, 9.1.2.2, 9.5.1.1,

9.5.1.2.1, 9.5.1.2.2, 9.5.2.1, 9.7.1, 10.0, 11.2.12, 11.3.12, 11.4.12,

11.5.12 and appendices B and C.

2. American National Standards Institute Standard Z21.56-1994,

``Gas-Fired Pool Heaters,'' section 2.9.

* * * * *

Sec. 430.23 [Amended]

3. Section 430.23, Test procedures for measures of energy

consumption, is amended as follows:

A. In Sec. 430.23(i)(1)(iii) (second sentence) ``4.3.1, 4.2.2,

4.1.2.5, or 4.1.2.6, 4.4.3, and 4.5.1.3'' is revised to read ``4.3,

4.2.2, 4.1.2, and 4.4.3.''

B. In Sec. 430.23(i)(2) (first sentence) ``4.2.1.3, 4.1.3 and

4.4.2'' is revised to read ``4.2.1, 4.1.3, and 4.4.4.''

C. Sec. 430.23 (i)(3) is removed and reserved.

D. In Sec. 430.23(i)(4) (first sentence) ``4.3.3, 4.2.3, 4.1.4,

4.4.4 and 4.5.3'' is revised to read ``4.3, 4.2.3, 4.1.4, 4.4.5.''

E. In Secs. 430.23 (i)(8) and 430.23 (i)(9) remove the phrase ``and

(i)(3).''

* * * * *

4. Appendix I to Subpart B of Part 430 is revised to read as

follows:

Appendix I to Subpart B of Part 430--Uniform Test Method for Measuring

the Energy Consumption of Conventional Ranges, Conventional Cooking

Tops, Conventional Ovens, and Microwave Ovens

1. Definitions

1.1 Built-in means the product is supported by surrounding

cabinetry, walls, or other similar structures.

1.2 Drop-in means the product is supported by horizontal surface

cabinetry.

1.3 Forced convection means a mode of conventional oven operation

in

[[Page 51982]]

which a fan is used to circulate the heated air within the oven

compartment during cooking.

1.4 Freestanding means the product is not supported by surrounding

cabinetry, walls, or other similar structures.

1.5 IEC 705 refers to the test standard published by the

International Electrotechnical Commission, entitled ``Method for

Measuring the Performance of Microwave Ovens for Household and Similar

Purposes,'' Publication 705-1988 and Amendment 2--1993. (See 10 CFR

430.22)

1.6 Normal nonoperating temperature means the temperature of all

areas of an appliance to be tested are within 5 deg.F (2.8 deg.C) of

the temperature that the identical areas of the same basic model of the

appliance would attain if it remained in the test room for 24 hours

while not operating with all oven doors closed and with any gas pilot

lights on and adjusted in accordance with manufacturer's instructions.

1.7 Primary energy consumption means either the electrical energy

consumption of a conventional electric oven or the gas energy

consumption of a conventional gas oven.

1.8 Secondary energy consumption means any electrical energy

consumption, other than clock energy consumption, of a conventional gas

oven.

1.9 Standard cubic foot (L) of gas means that quantity of gas that

occupies 1 cubic foot (L) when saturated with water vapor at a

temperature of 60 deg.F (15.6 deg.C) and a pressure of 30 inches of

mercury (101.6 kPa) (density of mercury equals 13.595 grams per cubic

centimeter).

1.10 Thermocouple means a device consisting of two dissimilar

metals which are joined together and, with their associated wires, are

used to measure temperature by means of electromotive force.

1.11 Symbol Usage. The following identity relationships are

provided to help clarify the symbology used throughout this procedure.

A--Number of Hours in a Year

B--Number of Hours Pilot Light Contributes to Cooking

C--Specific Heat

E--Energy Consumed

Eff--Cooking Efficiency

H--Heating Value of Gas

K--Conversion for Watt-hours to Kilowatt hours

Ke--3.412 Btu/Wh, Conversion for Watt-hours to Btu's

M--Mass

n--Number of Units

O--Annual Useful Cooking Energy Output

P--Power

Q--Gas Flow Rate

R--Energy Factor, Ratio of useful Cooking Energy Output to Total Energy

Input

S--Number of Self Cleaning Operations per Year

T--Temperature

t--Time

V--Volume of Gas Consumed

W--Weight of Test Block

2. Test Conditions

2.1 Installation. A free standing kitchen range shall be installed

with the back directly against, or as near as possible to, a vertical

wall which extends at least 1 foot above and on either side of the

appliance. There shall be no side walls. A drop-in, built-in or wall-

mounted appliance shall be installed in an enclosure in accordance with

the manufacturer's instructions. These appliances are to be completely

assembled with all handles, knobs, guards and the like mounted in

place. Any electric resistance heaters, gas burners, baking racks, and

baffles shall be in place in accordance with the manufacturer's

instructions; however, broiler pans are to be removed from the oven's

baking compartment. Disconnect any electrical clock which uses energy

continuously, except for those that are an integral part of the timing

or temperature controlling circuit of the oven, cooktop, or microwave

oven. Do not disconnect or modify the circuit to any other electrical

devices or features.

2.1.1 Conventional electric ranges, ovens, and cooking tops. These

products shall be connected to an electrical supply circuit with

voltage as specified in Section 2.2.1 with a watt-hour meter installed

in the circuit. The watt-hour meter shall be as described in Section

2.9.1.1.

2.1.2 Conventional gas ranges, ovens, and cooking tops. These

products shall be connected to a gas supply line with a gas meter

installed between the supply line and the appliance being tested,

according to manufacturer's specifications. The gas meter shall be as

described in Section 2.9.2. Conventional gas ranges, ovens and cooking

tops with electrical ignition devices or other electrical components

shall be connected to an electrical supply circuit of nameplate voltage

with a watt-hour meter installed in the circuit. The watt-hour meter

shall be as described in Section 2.9.1.1.

2.1.3 Microwave ovens. Install the microwave oven in accordance

with the manufacturer's instructions and connect to an electrical

supply circuit with voltage as specified in Section 2.2.1. A watt-hour

meter and watt meter shall be installed in the circuit and shall be as

described in Section 2.9.1.1 and 2.9.1.2. If trial runs are needed to

set the ``on'' time for the test, the test measurements are to be

separated according to Section 4, Paragraph 12.6 of IEC 705 Amendment

2. (See 10 CFR 430.22)

2.2 Energy supply.

2.2.1 Electrical supply. Maintain the electrical supply to the

conventional range, conventional cooking top, and conventional oven

being tested at 240/120 volts except that basic models rated only at

208/120 volts shall be tested at that rating. Maintain the voltage

within 2 percent of the above specified voltages. For the microwave

oven testing, however, maintain the electrical supply to a microwave

oven at 120 volts 1 volt and at 60 hertz.

2.2.2 Gas supply.

2.2.2.1 Gas burner adjustments. Conventional gas ranges, ovens,

and cooking tops shall be tested with all of the gas burners adjusted

in accordance with the installation or operation instructions provided

by the manufacturer. In every case, the burner must be adjusted with

sufficient air flow to prevent a yellow flame or a flame with yellow

tips.

2.2.2.2 Natural gas. For testing convertible cooking appliances or

appliances which are designed to operate using only natural gas,

maintain the natural gas pressure immediately ahead of all controls of

the unit under test at 7 to 10 inches of water column (1743.6 to 2490.8

Pa). The regulator outlet pressure shall equal the manufacturer's

recommendation. The natural gas supplied should have a heating value of

approximately 1,025 Btu's per standard cubic foot (38.2 kJ/L). The

actual gross heating value, Hn, in Btu's per standard cubic

foot (kJ/L), for the natural gas to be used in the test shall be

obtained either from measurements made by the manufacturer conducting

the test using equipment that meets the requirements described in

Section 2.9.4 or by the use of bottled natural gas whose gross heating

value is certified to be at least as accurate a value that meets the

requirements in Section 2.9.4.

2.2.2.3 Propane. For testing convertible cooking appliances with

propane or for testing appliances which are designed to operate using

only LP-gas, maintain the propane pressure immediately ahead of all

controls of the unit under test at 11 to 13 inches of water column

(2740 to 3238 Pa). The regulator outlet pressure shall equal the

manufacturer's recommendation. The propane supplied should have a

heating value of approximately 2,500 Btu's per standard cubic foot

(93.2 kJ/L). The

[[Page 51983]]

actual gross heating value, Hp, in Btu's per standard cubic

foot (kJ/L), for the propane to be used in the test shall be obtained

either from measurements made by the manufacturer conducting the test

using equipment that meets the requirements described in Section 2.9.4

or by the use of bottled propane whose gross heating value is certified

to be at least as accurate a value that meets the requirements

described in Section 2.9.4.

2.2.2.4 Test gas. A basic model of a convertible cooking appliance

shall be tested with natural gas, but may also be tested with propane.

Any basic model of a conventional range, conventional cooking top, or

conventional oven which is designed to operate using only natural gas

as the energy source must be tested with natural gas. Any basic model

of a conventional range, conventional cooking top, or conventional oven

which is designed to operate using only LP gas as the gas energy source

must be tested with propane gas.

2.3 Air circulation. Maintain air circulation in the room

sufficient to secure a reasonably uniform temperature distribution, but

do not cause a direct draft on the unit under test.

2.4 Setting the conventional oven thermostat.

2.4.1 Conventional electric oven. Install a thermocouple

approximately in the center of the usable baking space. Provide a

temperature indicator system for measuring the oven's temperature with

an accuracy as indicated in Section 2.9.3.2. If the oven thermostat

does not cycle on and off, adjust or determine the conventional

electric oven thermostat setting to provide an average internal

temperature which is 325 deg.5 deg.F (180.6 deg.

2.8 deg.C) higher than the room ambient air temperature. If

the oven thermostat operates by cycling on and off, adjust or determine

the conventional electric oven thermostat setting to provide an average

internal temperature which is 325 deg.5 deg.F

(180.6 deg.2.8 deg.C) higher than the room ambient air

temperature. This shall be done by measuring the maximum and minimum

temperatures in any three consecutive cut-off/cut-on actions of the

electric resistance heaters, excluding the initial cut-off/cut-on

action, by the thermostat after the temperature rise of

325 deg.5 deg.F (180.6 deg. 2.8 deg.C) has been

attained by the conventional electric oven. Remove the thermocouple

after the thermostat has been set.

2.4.2 Conventional gas oven. Install five parallel-connected

weighted thermocouples, one located at the center of the conventional

gas oven's usable baking space and the other four equally spaced

between the center and the corners of the conventional gas oven on the

diagonals of a horizontal plane through the center of the conventional

gas oven. Each weighted thermocouple shall be constructed of a copper

disc that is 1-inch (25.4 mm) in diameter and \1/8\-inch (3.2 mm)

thick. The two thermocouple wires shall be located in two holes in the

disc spaced \1/2\-inch (12.7 mm) apart, with each hole being located

\1/4\-inch (6.4 mm) from the center of the disc. Both thermocouple

wires shall be silver-soldered to the copper disc. Provide a

temperature indicator system for measuring the oven's temperature with

an accuracy as indicated in Section 2.9.3.2. If the oven thermostat

does not cycle on or off, adjust or determine the conventional gas oven

thermostat setting to provide an average internal temperature which is

325 deg.5 deg.F (180.6 deg.2.8 deg.C) higher

than the room ambient air temperature. If the oven thermostat operates

by cycling on and off, adjust or determine the conventional gas oven

thermostat setting to provide an average internal temperature which is

325 deg.5 deg.F (180.62.8 deg.C) higher than

the room ambient air temperature. This shall be done by measuring the

maximum and minimum temperatures in any three consecutive cut-off/cut-

on actions of the gas burners, excluding the initial cut-off/cut-on

action, by the thermostat after the temperature rise of

325 deg.5 deg.F (180.6 deg.2.8 deg.C) has been

attained by the conventional gas oven. Remove the thermocouples after

the thermostat has been set.

2.5 Ambient room air temperature. During the test, maintain an

ambient room air temperature, TR, of

77 deg.9 deg.F (25 deg.5 deg.C) for

conventional ovens and cooking tops, or as indicated in Section 4,

Paragraph 12.4 of IEC 705 Amendment 2 for microwave ovens, as measured

at least 5 feet (1.5 m) and not more than 8 feet (2.4 m) from the

nearest surface of the unit under test and approximately 3 feet (0.9 m)

above the floor. The temperature shall be measured with a thermometer

or temperature indicating system with an accuracy as specified in

Section 2.9.3.1.

2.6 Normal nonoperating temperature. All areas of the appliance

to be tested shall attain the normal nonoperating temperature, as

defined in Section 1.6, before any testing begins. The equipment for

measuring the applicable normal nonoperating temperature shall be as

described in Sections 2.9.3.1, 2.9.3.2, 2.9.3.3, 2.9.3.4, and 2.9.3.5,

as applicable.

2.7 Test blocks for conventional oven and cooking top. The test

blocks shall be made of aluminum alloy No. 6061, with a specific heat

of 0.23 Btu/lb- deg.F (0.96 kJ/[kg deg.C]) and with any

temper that will give a czoefficient of thermal conductivity of 1073.3

to 1189.1 Btu-in/h-ft2- deg.F (154.8 to 171.5 W/[m

deg.C]). Each block shall have a hole at its top. The hole shall be

0.08 inch (2.03 mm) in diameter and 0.80 inch (20.3 mm) deep. The

manufacturer conducting the test may provide other means which will

ensure that the thermocouple junction is installed at this same

position and depth.

The bottom of each block shall be flat to within 0.002 inch (0.051

mm) TIR (total indicator reading). Determine the actual weight of each

test block with a scale with an accuracy as indicated in Section 2.9.5.

2.7.1 Conventional oven test block. The test block for the

conventional oven, W1, shall be 6.250.05 inches

(158.81.3 mm) in diameter, approximately 2.8 inches (71 mm)

high and shall weigh 8.50.1 lbs (3.860.05 kg).

The block shall be finished with an anodic black coating which has a

minimum thickness of 0.001 inch (0.025 mm) or with a finish having the

equivalent absorptivity.

2.7.2 Small test block for conventional cooking top. The small

test block, W2, shall be 6.250.05 inches

(158.81.3 mm) in diameter, approximately 2.8 inches (71 mm)

high and shall weigh 8.50.1 lbs (3.860.05 kg).

2.7.3 Large test block for conventional cooking top. The large

test block for the conventional cooking top, W3, shall be

90.05 inches (228.61.3 mm) in diameter,

approximately 3.0 inches (76 mm) high and shall weigh 190.1

lbs (8.620.05 kg).

2.7.4 Thermocouple installation. Install the thermocouple such

that the thermocouple junction (where the thermocouple contacts the

test block) is at the bottom of the hole provided in the test block and

that the thermocouple junction makes good thermal contact with the

aluminum block. If the test blocks are to be water cooled between tests

the thermocouple hole should be sealed, or other steps taken, to insure

that the thermocouple hole is completely dry at the start of the next

test. Provide a temperature indicator system for measuring the test

block temperature with an accuracy as indicated in Section 2.9.3.3.

2.7.5 Initial test block temperature. Maintain the initial

temperature of the test blocks, TI, within

4 deg.F (2.2 deg.C) of the ambient room air

temperature as specified in Section 2.5. If the test block has been

cooled (or heated) to bring it to room temperature, allow the block to

stabilize for at least 2 minutes after removal from the cooling (or

heating)

[[Page 51984]]

source, before measuring its initial temperature.

2.8 Microwave oven test load.

2.8.1 Test container. The test container shall be as specified in

Section 4, Paragraph 12.2 of IEC 705 Amendment 2.

2.8.2 Test water load. The test water load shall be as specified

in Section 4, Paragraph 12.1 of IEC 705 Amendment 2.

2.8.2.1 Test water load and test container temperature. Before the

start of the test, the oven and the test container shall be at ambient

temperature as specified in Section 4, Paragraph 12.4 of IEC 705

Amendment 2. The test water load shall be contained in a chiller (not

the test container) and maintained at 18 deg. 1.8 deg.F

(10 deg. 1 deg.C) below the ambient room temperature.

2.9 Instrumentation. Perform all test measurements using the

following instruments, as appropriate:

2.9.1 Electrical Measurements.

2.9.1.1 Watt-hour meter. The watt-hour meter for measuring the

electrical energy consumption of conventional ovens and cooking tops

shall have a resolution of 1 watt-hour (3.6 kJ) or less and a maximum

error no greater than 1.5 percent of the measured value for any demand

greater than 100 watts. The watt-hour meter for measuring the energy

consumption of microwave ovens shall have a resolution of 0.1 watt-hour

(0.36 kJ) or less and a maximum error no greater than 1.5 percent of

the measured value.

2.9.1.2 Watt meter. The watt meter used to measure the

conventional oven, conventional range, range clock power or the power

input of the microwave oven shall have a resolution of 0.2 watt (0.2 J/

s) or less and a maximum error no greater than 5 percent of the

measured value.

2.9.2 Gas Measurements.

2.9.2.1 Positive displacement meters. The gas meter to be used for

measuring the gas consumed by the gas burners of the oven or cooking

top shall have a resolution of 0.01 cubic foot (0.28 L) or less and a

maximum error no greater than 1 percent of the measured value for any

demand greater than 2.2 cubic feet per hour (62.3 L/h). If a positive

displacement gas meter is used for measuring the gas consumed by the

pilot lights, it shall have a resolution of at least 0.01 cubic foot

(0.28 L) or less and have a maximum error no greater than 2 percent of

the measured value.

2.9.2.2 Flow meter. If a gas flow meter is used for measuring the

gas consumed by the pilot lights, it shall be calibrated to have a

maximum error no greater than 1.5 percent of the measured value and a

resolution of 1 percent or less of the measured value.

2.9.3 Temperature measurement equipment.

2.9.3.1 Room temperature indicating system. The room temperature

indicating system shall be as specified in Section 4, Paragraph 12.3 of

IEC 705 Amendment 2 for microwave ovens and Section 2.9.3.5 for ranges,

ovens and cooktops.

2.9.3.2 Temperature indicator system for measuring conventional

oven temperature. The equipment for measuring the conventional oven

temperature shall have an error no greater than 4 deg.F

(2.2 deg.C) over the range of 65 deg. to 500 deg.F

(18 deg.C to 260 deg.C).

2.9.3.3 Temperature indicator system for measuring test block

temperature. The system shall have an error no greater than

2 deg.F (1.1 deg.C) when measuring specific

temperatures over the range of 65 deg. to 330 deg.F (18.3 deg.C to

165.6 deg.C). It shall also have an error no greater than

2 deg.F (1.1 deg.C) when measuring any

temperature difference up to 240 deg.F (133.3 deg.C) within the above

range.

2.9.3.4 Test load temperatures. The thermometer or other

temperature measuring instrument used to measure the test water load

temperature shall be as specified in Section 4, Paragraph 12.3 of IEC

705 Amendment 2. Use only one thermometer or other temperature

measuring device throughout the entire test procedure.

2.9.3.5 Temperature indicator system for measuring surface

temperatures. The temperature of any surface of an appliance shall be

measured by means of a thermocouple in firm contact with the surface.

The temperature indicating system shall have an error no greater than

1 deg.F (0.6 deg.C) over the range 65 deg. to

90 deg.F (18 deg.C to 32 deg.C).

2.9.4 Heating Value. The heating value of the natural gas or

propane shall be measured with an instrument and associated readout

device that has a maximum error no greater than 0.5% of the

measured value and a resolution of 0.2% or less of the full

scale reading of the indicator instrument. The heating value of natural

gas or propane must be corrected for local temperature and pressure

conditions.

2.9.5 Scale. The scale used for weighing the test blocks shall

have a maximum error no greater than 1 ounce (28.4 g). The scale used

for weighing the microwave oven test water load shall be as specified

in Section 4, paragraph 12.3 of IEC 705 Amendment 2.

3. Test Methods and Measurements

3.1 Test methods.

3.1.1 Conventional oven. Perform a test by establishing the

testing conditions set forth in Section 2, ``TEST CONDITIONS,'' of this

Appendix, and adjust any pilot lights of a conventional gas oven in

accordance with the manufacturer's instructions and turn off the gas

flow to the conventional cooking top, if so equipped. Before beginning

the test, the conventional oven shall be at its normal nonoperating

temperature as defined in Section 1.6 and described in Section 2.6. Set

the conventional oven test block W1 approximately in the

center of the usable baking space. If there is a selector switch for

selecting the mode of operation of the oven, set it for normal baking.

If an oven permits baking by either forced convection by using a fan,

or without forced convection, the oven is to be tested in each of those

two modes. The oven shall remain on for at least one complete

thermostat ``cut-off/cut-on'' of the electrical resistance heaters or

gas burners after the test block temperature has increased 234 deg.F

(130 deg.C) above its initial temperature.

3.1.1.1 Self-cleaning operation of a conventional oven. Establish

the test conditions set forth in Section 2, ``TEST CONDITIONS,'' of

this Appendix. Adjust any pilot lights of a conventional gas oven in

accordance with the manufacturer's instructions and turn off the gas

flow to the conventional cooking top. The temperature of the

conventional oven shall be its normal nonoperating temperature as

defined in Section 1.6 and described in Section 2.6. Then set the

conventional oven's self-cleaning process in accordance with the

manufacturer's instructions. If the self-cleaning process is

adjustable, use the average time recommended by the manufacturer for a

moderately soiled oven.

3.1.1.2 Continuously burning pilot lights of a conventional gas

oven. Establish the test conditions set forth in Section 2, ``TEST

CONDITIONS,'' of this Appendix. Adjust any pilot lights of a

conventional gas oven in accordance with the manufacturer's

instructions and turn off the gas flow to the conventional cooking top.

If a positive displacement gas meter is used the, test duration shall

be sufficient to measure a gas consumption which is at least 200 times

the resolution of the gas meter.

3.1.2 Conventional cooking top. Establish the test conditions set

forth in Section 2, ``TEST CONDITIONS,'' of this Appendix. Adjust any

pilot lights of a conventional gas cooking top in accordance with the

manufacturer's instructions and turn off the gas flow to the

conventional oven(s), if so equipped. The temperature of the

[[Page 51985]]

conventional cooking top shall be its normal nonoperating temperature

as defined in Section 1.6 and described in Section 2.6. Set the test

block in the center of the surface unit under test. The small test

block, W2, shall be used on electric surface units of 7

inches (178 mm) or less in diameter. The large test block,

W3, shall be used on electric surface units over 7 inches

(177.8 mm) in diameter and on all gas surface units. Turn on the

surface unit under test and set its energy input rate to the maximum

setting. When the test block reaches 144 deg.F (80 deg.C) above its

initial test block temperature, immediately reduce the energy input

rate to 255 percent of the maximum energy input rate. After

150.1 minutes at the reduced energy setting, turn off the

surface unit under test.

3.1.2.1 Continuously burning pilot lights of a conventional gas

cooking top. Establish the test conditions set forth in Section 2,

``TEST CONDITIONS,'' of this Appendix. Adjust any pilot lights of a

conventional gas cooking top in accordance with the manufacturer's

instructions and turn off the gas flow to the conventional oven(s). If

a positive displacement gas meter is used, the test duration shall be

sufficient to measure a gas consumption which is at least 200 times the

resolution of the gas meter.

3.1.3 Microwave oven.

3.1.3.1 Microwave oven test energy or power output. Establish the

testing conditions set forth in Section 2, ``TEST CONDITIONS,'' of this

Appendix. Follow the test procedure as specified in Section 4,

Paragraph 12.4 of IEC 705 Amendment 2.

3.2 Test measurements.

3.2.1 Conventional oven test energy consumption. If the oven

thermostat controls the oven temperature without cycling on and off,

measure the energy consumed, EO, when the temperature of the

block reaches TO (TO is 234 deg.F (130 deg.C)

above the initial block temperature, TI). If the oven

thermostat operates by cycling on and off, make the following series of

measurements: Measure the block temperature, TA, and the

energy consumed, EA, or volume of gas consumed,

VA, at the end of the last ``ON'' period of the conventional

oven before the block reaches TO. Measure the block

temperature, TB, and the energy consumed, EB, or

volume of gas consumed, VB, at the beginning of the next

``ON'' period. Measure the block temperature, TC, and the

energy consumed, EC, or volume of gas consumed,

VC, at the end of that ``ON'' period. Measure the block

temperature, TD, and the energy consumed, ED, or

volume of gas consumed, VD, at the beginning of the

following ``ON'' period. Energy measurements for EO,

EA, EB, EC and ED, should

be expressed in watt-hours (kJ) for conventional electric ovens and

volume measurements for VA, VB, VC and

VD should be expressed in standard cubic feet (L) of gas for

conventional gas ovens. For a gas oven, measure in watt-hours (kJ) any

electrical energy, EIO, consumed by an ignition device or

other electrical components required for the operation of a

conventional gas oven while heating the test block to TO.

The energy consumed by a continuously operating clock that is an

integral part of the timing or temperature control circuit and cannot

be disconnected during the test may be subtracted from the oven test

energy to obtain the test energy consumption, EO or

EIO.

3.2.1.1 Conventional oven average test energy consumption. If the

conventional oven permits baking by either forced convection or without

forced convection and the oven thermostat does not cycle on and off,

measure the energy consumed with the forced convection mode,

(EO)1, and without the forced convection mode,

(EO)2, when the temperature of the block reaches

TO (TO is 234 deg.F (130 deg.C) above the

initial block temperature, TI). If the conventional oven

permits baking by either forced convection or without forced convection

and the oven thermostat operates by cycling on and off, make the

following series of measurements with and without the forced convection

mode: Measure the block temperature, TA, and the energy

consumed, EA, or volume of gas consumed, VA, at

the end of the last ``ON'' period of the conventional oven before the

block reaches TO. Measure the block temperature,

TB, and the energy consumed, EB, or volume of gas

consumed, VB, at the beginning of the next ``ON'' period.

Measure the block temperature, TC, and the energy consumed,

EC, or volume of gas consumed, VC, at the end of

that ``ON'' period. Measure the block temperature, TD, and

the energy consumed, ED, or volume of gas consumed,

VD, at the beginning of the following ``ON'' period. Energy

measurements for EO, EA, EB,

EC and ED should be expressed in watt-hours (kJ)

for conventional electric ovens and volume measurements for

VA, VB, VC and VD should be

expressed in standard cubic feet (L) of gas for conventional gas ovens.

For a gas oven that can be operated with or without forced convection,

measure in watt-hours (kJ) any electrical energy consumed by an

ignition device or other electrical components required for the

operation of a conventional gas oven while heating the test block to

TO using the forced convection mode,

(EIO)1, and without using the forced convection

mode, (EIO)2. The energy consumed by a

continuously operating clock that is an integral part of the timing or

temperature control circuit and cannot be disconnected during the test

may be subtracted from the oven test energy to obtain the test energy

consumption, (EO)1 and

(EO)2 or (EIO)1 and

(EIO)2.

3.2.1.2 Energy consumption of self-cleaning operation. Measure the

energy consumption, ES, in watt-hours (kJ) of electricity or

the volume of gas consumption, VS, in standard cubic feet

(L) during the self-cleaning test set forth in Section 3.1.1.1. For a

gas oven, also measure in watt-hours (kJ) any electrical energy,

EIS, consumed by ignition devices or other electrical

components required during the self-cleaning test. The energy consumed

by a continuously operating clock that is an integral part of the

timing or temperature control circuit and cannot be disconnected during

the test may be subtracted from the self-cleaning test energy to obtain

the energy consumption, ES or EIS

3.2.1.3 Gas consumption of continuously burning pilot lights.

Measure the gas consumption of the pilot lights, VOP, in

standard cubic feet (L) of gas and the test duration, tOP,

in hours for the test set forth in Section 3.1.1.2. If a gas flow rate

meter is used, measure the flow rate, QOP, in standard cubic

feet per hour (L/h).

3.2.1.4 Clock power. If the conventional oven or conventional

range includes an electric clock which is on continuously, and the

power rating in watts (J/s) of this feature is not known, measure the

clock power, PCL, in watts (J/s.) The power rating or

measurement of continuously operating clocks, that are an integral part

of the timing or temperature control circuits and cannot be

disconnected during testing, shall be multiplied by the applicable test

period to calculate the clock energy consumption, in watt-hours (kJ),

during a test. The energy consumed by the clock during the test may

then be subtracted from the test energy to obtain the specified test

energy consumption value.

3.2.2 Conventional surface unit test energy consumption. For the

surface unit under test, measure the energy consumption,

ECT, in watt-hours (kJ) of electricity or the volume of gas

consumption, VCT, in standard cubic feet (L) of gas and the

test block temperature, TCT, at the end of the 15 minute

(reduced input setting) test interval for the test specified in Section

3.1.2 and the total time, tCT, in hours, that the unit is

under test. Measure any

[[Page 51986]]

electrical energy, EIC, consumed by an ignition device of a

gas heating element in watt-hours (kJ). The energy consumed by a

continuously operating clock that is an integral part of the timing or

temperature control circuit and cannot be disconnected during the test

may be subtracted from the cooktop test energy to obtain the test

energy consumption, ECT or EIC.

3.2.2.1 Gas consumption of continuously burning pilot lights. If

the conventional gas cooking top under test has one or more

continuously burning pilot lights, measure the gas consumed during the

test by the pilot lights, VCP, in standard cubic feet (L) of

gas, and the test duration, tCP, in hours as specified in

Section 3.1.2.1. If a gas flow rate meter is used, measure the flow

rate, QCP, in standard cubic feet per hour (L/h).

3.2.3 Microwave oven test energy consumption and power input.

Measurements are to be made as specified in Section 4, Paragraphs 12.4

and 13 of IEC 705 and Amendment 2. Measure the electrical input energy,

EM, in watt-hours (kJ) consumed by the microwave oven during

the test. Repeat the tests three times unless the power output value

resulting from the second measurement is within 1.5% of the value

obtained from the first measurement as stated in Section 4, Paragraphs

12.6 of IEC 705 Amendment 2. (See 10 CFR 430.22.)

3.3 Recorded values.

3.3.1 Record the test room temperature, TR, at the

start and end of each range, oven or cooktop test, as determined in

Section 2.5.

3.3.2 Record measured test block weights W1,

W2, and W3 in pounds (kg).

3.3.3 Record the initial temperature, T1, of the test

block under test.

3.3.4 For a conventional oven with a thermostat which operates by

cycling on and off, record the conventional oven test measurements

TA, EA, TB, EB,

TC, EC, TD, and ED for

conventional electric ovens or TA, VA,

TB, VB, TC, VC,

TD, and VD for conventional gas ovens. If the

thermostat controls the oven temperature without cycling on and off,

record EO. For a gas oven which also uses electrical energy

for the ignition or operation of the oven, also record EIO.

3.3.5 For a conventional oven that can be operated with or without

forced convection and the oven thermostat controls the oven temperature

without cycling on and off, measure the energy consumed with the forced

convection mode, (EO)1, and without the forced

convection mode, (EO)2. If the conventional oven

operates with or without forced convection and the thermostat controls

the oven temperature by cycling on and off, record the conventional

oven test measurements TA, EA, TB,

EB, TC, EC, TD, and

ED for conventional electric ovens or TA,

VA, TB, VB, TC,

VC, TD, and VD for conventional gas

ovens. For a gas oven that can be operated with or without forced

convection, measure any electrical energy consumed by an ignition

device or other electrical components used during the forced convection

mode, (EIO)1, and without using the forced

convection mode, (EIO)2.

3.3.6 Record the measured energy consumption, ES, or

gas consumption, VS, and for a gas oven, any electrical

energy, EIS, for the test of the self-cleaning operation of

a conventional oven.

3.3.7 Record the gas flow rate, QOP; or the gas

consumption, VOP, and the elapsed time, tOP, that

any continuously burning pilot lights of a conventional oven are under

test.

3.3.8 Record the clock power measurement or rating,

PCL, in watts (J/s), except for microwave oven tests.

3.3.9 For the surface unit under test, record the electric energy

consumption, ECT, or the gas volume consumption,

VCT, the final test block temperature, TCT, the

total test time, tCT. For a gas cooking top which uses

electrical energy for ignition of the burners, also record

EIC.

3.3.10 Record the gas flow rate, QCP; or the gas

consumption, VCP, and the elapsed time, tCP, that

any continuously burning pilot lights of a conventional gas cooking top

are under test.

3.3.11 Record the heating value, Hn, as determined in

Section 2.2.2.2 for the natural gas supply.

3.3.12 Record the heating value, Hp, as determined in

Section 2.2.2.3 for the propane supply.

3.3.13 Record the electrical input energy and power input,

EM and PM, for the microwave oven test; the

initial and final temperature, T1 and T2, of the

test water load; the mass of the test container before filling with the

test water load and the mass of the test water load, MC and

MW respectively; and the measured room temperature,

T0; as determined in Section 3.2.3.

4. Calculation of Derived Results From Test Measurements

4.1 Conventional oven.

4.1.1 Test energy consumption. For a conventional oven with a

thermostat which operates by cycling on and off, calculate the test

energy consumption, EO, expressed in watt-hours ( kJ) for

electric ovens and in Btu's (kJ) for gas ovens, and defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.000

for electric ovens, and,

[GRAPHIC] [TIFF OMITTED] TR03OC97.001

[[Page 51987]]

For gas ovens

Where:

H = either Hn or Hp, the heating value of the

gas used in the test as specified in Section 2.2.2.2 and Section

2.2.2.3, expressed in Btu's per standard cubic foot (kJ/L).

TO = 234 deg.F (130 deg.C) plus the initial test block

temperature.

and,

[GRAPHIC] [TIFF OMITTED] TR03OC97.002

Where:

TA = block temperature in deg.F ( deg.C) at the end of the

last ``ON'' period of the conventional oven before the test block

reaches TO.

TB = block temperature in deg.F ( deg.C) at the beginning

of the ``ON'' period following the measurement of TA.

TC = block temperature in deg.F ( deg.C) at the end of the

``ON'' period which starts with TB.

TD = block temperature in deg.F ( deg.C) at the beginning

of the ``ON'' period which follows the measurement of TC.

EA = electric energy consumed in Wh (kJ) at the end of the

last ``ON'' period before the test block reaches TO.

EB = electric energy consumed in Wh (kJ) at the beginning of

the ``ON'' period following the measurement of TA.

EC = electric energy consumed in Wh (kJ) at the end of the

``ON'' period which starts with TB.

ED = electric energy consumed in Wh (kJ) at the beginning of

the ``ON'' period which follows the measurement of TC.

VA = volume of gas consumed in standard cubic feet (L) at

the end of the last ``ON'' period before the test block reaches

TO.

VB = volume of gas consumed in standard cubic feet (L) at

the beginning of the ``ON'' period following the measurement of

TA.

VC = volume of gas consumed in standard cubic feet (L) at

the end of the ``ON'' period which starts with TB.

VD = volume of gas consumed in standard cubic feet (L) at

the beginning of the ``ON'' period which follows the measurement of

TC.

The energy consumed by a continuously operating clock that cannot

be disconnected during the test may be subtracted from the oven test

energy to obtain the oven test energy consumption, EO.

4.1.1.1 Average test energy consumption. If the conventional oven

can be operated with or without forced convection, determine the

average test energy consumption, EO and EIO, in

watt-hours (kJ) for electric ovens and Btu's (kJ) for gas ovens using

the following equations:

[GRAPHIC] [TIFF OMITTED] TR03OC97.003

Where:

(EO)1=test energy consumption using the forced

convection mode in watt-hours (kJ) for electric ovens and in Btu's (kJ)

for gas ovens as measured in Section 3.2.1.1.

(EO)2=test energy consumption without using the

forced convection mode in watt-hours (kJ) for electric ovens and in

Btu's (kJ) for gas ovens as measured in Section 3.2.1.1.

(EIO)1=electrical energy consumption in watt-

hours (kJ) of a gas oven in forced convection mode as measured in

Section 3.2.1.1. (EIO)2=electrical energy

consumption in watt-hours (kJ) of a gas oven without using the forced

convection mode as measured in Section 3.2.1.1.

The energy consumed by a continuously operating clock that cannot

be disconnected during the test may be subtracted from the oven test

energy to obtain the average test energy consumption EO and

EIO.

4.1.2 Conventional oven annual energy consumption.

4.1.2.1. Annual cooking energy consumption.

4.1.2.1.1. Annual primary energy consumption. Calculate the annual

primary energy consumption for cooking, ECO, expressed in

kilowatt-hours (kJ) per year for electric ovens and in Btu's (kJ) per

year for gas ovens, and defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.004

Where:

E O=test energy consumption as measured in Section 3.2.1 or

as calculated in Section 4.1.1 or Section 4.1.1.1.

K e=3.412 Btu/Wh (3.6 kJ/Wh,) conversion factor of watt-

hours to Btu's.

O O=29.3 kWh (105,480 kJ) per year, annual useful cooking

energy output of conventional electric oven.

W 1=measured weight of test block in pounds (kg).

C p=0.23 Btu/lb- deg.F (0.96 kJ/kg bullet deg.C),

specific heat of test block.

T S=234 deg.F (130 deg.C), temperature rise of test block.

[GRAPHIC] [TIFF OMITTED] TR03OC97.005

Where:

EO=test energy consumption as measured in Section 3.2.1. or

as calculated in Section 4.1.1 or Section 4.1.1.1.

OO=88.8 kBtu (93,684 kJ) per year, annual useful cooking

energy output of conventional gas oven.

W1, Cp and TS are the same as defined

above.

4.1.2.1.2 Annual secondary energy consumption for cooking of gas

ovens. Calculate the annual secondary energy consumption for cooking,

ESO, expressed in kilowatt-hours (kJ) per year and defined

as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.006

Where:

EIO=electrical test energy consumption as measured in

Section 3.2.1 or as calculated in Section 4.1.1.1.

OO=29.3 kWh (105,480 kJ) per year, annual useful cooking

energy output.

Ke, W1, Cp, and TS are as

defined in Section 4.1.2.1.1.

4.1.2.2 Annual energy consumption of any continuously burning

pilot lights. Calculate the annual energy consumption of any

continuously burning pilot lights, EPO, expressed in Btu's

(kJ) per year and defined as:

EPO=QOP x H x (A-B),

or,

[GRAPHIC] [TIFF OMITTED] TR03OC97.007

Where:

QOP=pilot gas flow rate in standard cubic feet per hour (L/

h), as measured in Section 3.2.1.3.

VOP=standard cubic feet (L) of gas consumed by any

continuously burning pilot lights, as measured in Section 3.2.1.3.

tOP=elapsed test time in hours for any continuously burning

pilot lights tested, as measured in Section 3.2.1.3.

H=Hn or Hp, the heating value of the gas used in

the test as specified in

[[Page 51988]]

Section 2.2.2.2 and Section 2.2.2.3 in Btu's per standard cubic foot

(kJ/L).

A=8,760, number of hours in a year.

B=300, number of hours per year any continuously burning pilot lights

contribute to the heating of an oven for cooking food.

4.1.2.3 Annual conventional oven self-cleaning energy.

4.1.2.3.1 Annual primary energy consumption. Calculate the annual

primary energy consumption for conventional oven self-cleaning

operations, ESC, expressed in kilowatt-hours (kJ) per year

for electric ovens and in Btu's (kJ) for gas ovens, and defined as:

ESC=ES x Se x K, for electric ovens,

Where:

ES=energy consumption in watt-hours, as measured in Section

3.2.1.2.

Se=4, average number of times a self-cleaning operation of a

conventional electric oven is used per year.

K=0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.

or

ESC=VS x H x Sg, for gas ovens,

Where:

VS=gas consumption in standard cubic feet (L), as measured

in Section 3.2.1.2.

H=Hn or Hp, the heating value of the gas used in

the test as specified in Section 2.2.2.2 and Section 2.2.2.3 in Btu's

per standard cubic foot (kJ/L).

Sg=4, average number of times a self-cleaning operation of a

conventional gas oven is used per year.

The energy consumed by a continuously operating clock that cannot

be disconnected during the self-cleaning test procedure may be

subtracted from the test energy to obtain the test energy consumption,

ESC.

4.1.2.3.2 Annual secondary energy consumption for self-cleaning

operation of gas ovens. Calculate the annual secondary energy

consumption for self-cleaning operations of a gas oven, ESS,

expressed in kilowatt-hours (kJ) per year and defined as:

ESS=EIS x Sg x K,

Where:

EIS=electrical energy consumed during the self-cleaning

operation of a conventional gas oven, as measured in Section 3.2.1.2.

Sg=4, average number of times a self-cleaning operation of a

conventional gas oven is used per year.

K=0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.

4.1.2.4 Annual clock energy consumption. Calculate the annual

energy consumption of any constantly operating electric clock,

ECL, expressed in kilowatt-hours (kJ) per year and defined

as:

ECL = PCL x A x K,

Where:

PCL=power rating of clock which is on continuously, in

watts, as measured in Section 3.2.1.4.

A=8,760, number of hours in a year.

K=0.001 kWh/Wh conversion factor for watt-hours to kilowatt-hours.

4.1.2.5 Total annual energy consumption of a single conventional

oven.

4.1.2.5.1 Conventional electric oven energy consumption. Calculate

the total annual energy consumption of a conventional electric oven,

EAO, expressed in kilowatt-hours (kJ) per year and defined

as:

EAO=ECO+ESC+ECL,

Where:

ECO=annual primary cooking energy consumption as determined

in Section 4.1.2.1.1.

ESC=annual primary self-cleaning energy consumption as

determined in Section 4.1.2.3.1.

ECL=annual clock energy consumption as determined in Section

4.1.2.4.

4.1.2.5.2 Conventional gas oven energy consumption. Calculate the

total annual gas energy consumption of a conventional gas oven,

EAOG, expressed in Btu's (kJ) per year and defined as:

EAOG=ECO+ESC+EPO,

Where:

ECO=annual primary cooking energy consumption as determined

in Section 4.1.2.1.1.

EPO=annual pilot light energy consumption as determined in

Section 4.1.2.2.

ESC=annual primary self-cleaning energy consumption as

determined in Section 4.1.2.3.1.

If the conventional gas oven uses electrical energy, calculate the

total annual electrical energy consumption, EAOE, expressed

in kilowatt-hours (kJ) per year and defined as:

EAOE=ESO+ESS+ECL,

Where:

ESO=annual secondary cooking energy consumption as

determined in Section 4.1.2.1.2.

ESS=annual secondary self-cleaning energy consumption as

determined in Section 4.1.2.3.2.

ECL=annual clock energy consumption as determined in Section

4.1.2.4.

4.1.2.6. Total annual energy consumption of multiple conventional

ovens. If the cooking appliance includes more than one conventional

oven, calculate the total annual energy consumption of the conventional

ovens using the following equations:

4.1.2.6.1 Conventional electric oven energy consumption. Calculate

the total annual energy consumption, ETO, in kilowatt-hours (kJ) per

year and defined as:

ETO = EACO + EASC + ECL,

Where:

[GRAPHIC] [TIFF OMITTED] TR03OC97.008

is the average annual primary energy consumption for cooking,

and where:

n = number of conventional ovens in the basic model.

ECO = annual primary energy consumption for cooking as

determined in Section 4.1.2.1.1.

[GRAPHIC] [TIFF OMITTED] TR03OC97.009

average annual self-cleaning energy consumption,

Where:

n = number of self-cleaning conventional ovens in the basic model.

ESC = annual primary self-cleaning energy consumption as

determined according to Section 4.1.2.3.1.

ECL = clock energy consumption as determined according to

Section 4.1.2.4.

4.1.2.6.2 Conventional gas oven energy consumption. Calculate the

total annual gas energy consumption, ETOG, in Btu's (kJ) per

year and defined as:

ETOG = EACO + EASC + ETPO,

Where:

EACO = average annual primary energy consumption for cooking

in Btu's (kJ) per year and is calculated as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.010

Where:

n = number of conventional ovens in the basic model.

ECO = annual primary energy consumption for cooking as

determined in Section 4.1.2.1.1.

and,

EASC = average annual self-cleaning energy consumption in

Btu's (kJ) per year and is calculated as:

[[Page 51989]]

[GRAPHIC] [TIFF OMITTED] TR03OC97.011

Where:

n = number of self-cleaning conventional ovens in the basic model.

ESC = annual primary self-cleaning energy consumption as

determined according to Section 4.1.2.3.1.

[GRAPHIC] [TIFF OMITTED] TR03OC97.012

total energy consumption of any pilot lights,

Where:

EPO = annual energy consumption of any continuously burning

pilot lights determined according to Section 4.1.2.2.

n = number of pilot lights in the basic model.

If the oven also uses electrical energy, calculate the total annual

electrical energy consumption, ETOE, in kilowatt-hours (kJ)

per year and defined as:

ETOE = EASO + EAAS + ECL,

Where:

[GRAPHIC] [TIFF OMITTED] TR03OC97.013

is the average annual secondary energy consumption for cooking,

Where:

n=number of conventional ovens in the basic model.

ESO=annual secondary energy consumption for cooking of gas

ovens as determined in Section 4.1.2.1.2.

[GRAPHIC] [TIFF OMITTED] TR03OC97.014

is the average annual secondary self-cleaning energy consumption,

Where:

n=number of self-cleaning ovens in the basic model.

ESS=annual secondary self-cleaning energy consumption of gas

ovens as determined in Section 4.1.2.3.2.

ECL=annual clock energy consumption as determined in Section

4.1.2.4.

4.1.3 Conventional oven cooking efficiency.

4.1.3.1 Single conventional oven. Calculate the conventional oven

cooking efficiency, EffAO, using the following equations:

For electric ovens:

[GRAPHIC] [TIFF OMITTED] TR03OC97.015

and,

For gas ovens:

[GRAPHIC] [TIFF OMITTED] TR03OC97.016

Where:

W1=measured weight of test block in pounds (kg).

Cp=0.23 Btu/lb- deg.F (0.96 kJ/kg deg.C), specific

heat of test block.

TS=234 deg.F (130 deg.C), temperature rise of test block.

EO=test energy consumption as measured in Section 3.2.1 or

calculated in Section 4.1.1 or Section 4.1.1.1.

Ke=3.412 Btu/Wh (3.6 kJ/Wh), conversion factor for watt-

hours to Btu's.

EIO=electrical test energy consumption according to Section

3.2.1 or as calculated in Section 4.1.1.1.

4.1.3.2 Multiple conventional ovens. If the cooking appliance

includes more than one conventional oven, calculate the cooking

efficiency for all of the conventional ovens in the appliance,

EffTO, using the following equation:

[GRAPHIC] [TIFF OMITTED] TR03OC97.017

Where:

n=number of conventional ovens in the cooking appliance.

EffAO=cooking efficiency of each oven determined according

to Section 4.1.3.1.

4.1.4 Conventional oven energy factor. Calculate the energy

factor, or the ratio of useful cooking energy output to the total

energy input, RO, using the following equations:

[GRAPHIC] [TIFF OMITTED] TR03OC97.018

For electric ovens,

Where:

OO=29.3 kWh (105,480 kJ) per year, annual useful cooking

energy output.

EAO=total annual energy consumption for electric ovens as

determined in Section 4.1.2.5.1.

For gas ovens:

[GRAPHIC] [TIFF OMITTED] TR03OC97.019

Where:

OO=88.8 kBtu (93,684 kJ) per year, annual useful cooking

energy output.

EAOG=total annual gas energy consumption for conventional

gas ovens as determined in Section 4.1.2.5.2.

EAOE=total annual electrical energy consumption for

conventional gas ovens as determined in Section 4.1.2.5.2.

Ke=3,412 Btu/kWh (3,600 kJ/kWh), conversion factor for

kilowatt-hours to Btu's.

4.2 Conventional cooking top

4.2.1 Conventional cooking top cooking efficiency

4.2.1.1 Electric surface unit cooking efficiency. Calculate the

cooking efficiency, EffSU, of the electric surface unit

under test, defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.020

Where:

W=measured weight of test block, W2 or W3,

expressed in pounds (kg).

Cp=0.23 Btu/lb- deg.F (0.96 kJ/kg deg.C), specific

heat of test block.

TSU=temperature rise of the test block: final test block

temperature, TCT, as determined in Section 3.2.2, minus the

initial test block temperature, TI, expressed in deg.F

( deg.C) as determined in Section 2.7.5.

Ke=3.412 Btu/Wh (3.6 kJ/Wh), conversion factor of watt-hours

to Btu's.

ECT=measured energy consumption, as determined according to

Section 3.2.2, expressed in watt-hours (kJ).

The energy consumed by a continuously operating clock that cannot

be disconnected during the cooktop test may be subtracted from the

energy consumption, ECT, as determined in Section 3.2.2.

4.2.1.2 Gas surface unit cooking efficiency. Calculate the cooking

efficiency, EffSU, of the gas surface unit under test,

defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.021

Where:

W3=measured weight of test block as measured in Section

3.3.2, expressed in pounds (kg).

Cp and TSU are the same as defined in Section

4.2.1.1.

and,

E=[VCT - VCP x H] +

(EIC x Ke),

Where:

VCT=total gas consumption in standard cubic feet (L) for the

gas surface unit test as measured in Section 3.2.2.

EIC=electrical energy consumed in watt-hours (kJ) by an

ignition device of a gas surface unit as measured in Section 3.2.2.

[[Page 51990]]

Ke=3.412 Btu/Wh (3.6 kJ/Wh), conversion factor of watt-hours

to Btu's.

H=either Hn or Hp, the heating value of the gas

used in the test as specified in Section 2.2.2.2 and Section 2.2.2.3,

expressed in Btu's per standard cubic foot (kJ/L) of gas.

VCP=QCP x tCT, pilot consumption, in

standard cubic feet (L), during unit test,

Where:

tCT=the elapsed test time as defined in Section 3.2.2.

and

[GRAPHIC] [TIFF OMITTED] TR03OC97.022

(pilot flow in standard cubic feet per hour)

Where:

VCP=any pilot lights gas consumption defined in Section

3.2.2.1.

tCP=elapsed time of the cooking top pilot lights test as

defined in Section 3.2.2.1.

4.2.1.3 Conventional cooking top cooking efficiency. Calculate the

conventional cooking top cooking efficiency, EffCT, using

the following equation:

[GRAPHIC] [TIFF OMITTED] TR03OC97.023

Where:

n=number of surface units in the cooking top.

EffSU=the efficiency of each of the surface units, as

determined according to Section 4.2.1.1 or Section 4.2.1.2.

4.2.2 Conventional cooking top annual energy consumption.

4.2.2.1 Conventional electric cooking top energy consumption.

Calculate the annual energy consumption of an electric cooking top,

ECA, in kilowatt-hours (kJ) per year, defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.024

Where:

OCT=173.1 kWh (623,160 kJ) per year, annual useful cooking

energy output.

EffCT=conventional cooking top cooking efficiency as defined

in Section 4.2.1.3.

4.2.2.2 Conventional gas cooking top

4.2.2.2.1 Annual cooking energy consumption. Calculate the annual

energy consumption for cooking, ECC, in Btu's (kJ) per year

for a gas cooking top, defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.025

Where:

OCT=527.6 kBtu (556,618 kJ) per year, annual useful cooking

energy output.

EffCT=the gas cooking top efficiency as defined in Section

4.2.1.3.

4.2.2.2.2 Annual energy consumption of any continuously burning gas

pilots. Calculate the annual energy consumption of any continuously

burning gas pilot lights of the cooking top, EPC, in Btu's

(kJ) per year, defined as:

EPC=QCP x A x H,

Where:

QCP=pilot light gas flow rate as measured in Section

3.2.2.1.

A=8,760 hours, the total number of hours in a year.

H=either Hn or Hp, the heating value of the gas

used in the test as specified in Section 2.2.2.2. and Section 2.2.2.3,

expressed in Btu's per standard cubic foot (kJ/L) of gas.

4.2.2.2.3 Total annual energy consumption of a conventional gas

cooking top. Calculate the total annual energy consumption of a

conventional gas cooking top, ECA, in Btu's (kJ) per year,

defined as:

ECA=ECC + EPC,

Where:

ECC=energy consumption for cooking as determined in Section

4.2.2.2.1.

EPC=annual energy consumption of the pilot lights as

determined in Section 4.2.2.2.2.

4.2.3 Conventional cooking top energy factor. Calculate the energy

factor or ratio of useful cooking energy output for cooking to the

total energy input, RCT, as follows:

For an electric cooking top, the energy factor is the same as the

cooking efficiency as determined according to Section 4.2.1.3.

For gas cooking tops,

[GRAPHIC] [TIFF OMITTED] TR03OC97.026

Where:

OCT=527.6 kBtu (556,618 kJ) per year, annual useful cooking

energy output of cooking top.

ECA=total annual energy consumption of cooking top

determined according to Section 4.2.2.2.3.

4.3 Combined components. The annual energy consumption of a

kitchen range, e.g. a cooktop and oven combined, shall be the sum of

the annual energy consumption of each of its components. The annual

energy consumption for other combinations of ovens, cooktops and

microwaves will also be treated as the sum of the annual energy

consumption of each of its components. The energy factor of a combined

component is the sum of the annual useful cooking energy output of each

component divided by the sum of the total annual energy consumption of

each component.

4.4 Microwave oven.

4.4.1 Microwave oven test energy output. Calculate the microwave

oven test energy output, ET, in watt-hour's (kJ). The

calculation is repeated two or three times as required in section

3.2.3. The average of the ET's is used for a calculation in

section 4.4.3. For calculations specified in units of energy [watt-

hours (kJ)], use the equation below:

[GRAPHIC] [TIFF OMITTED] TR03OC97.027

Where:

MW=the measured mass of the test water load, in pounds (g).

MC=the measured mass of the test container before filling

with test water load, in pounds (g).

T1=the initial test water load temperature, in deg.F

( deg.C).

T2=the final test water load temperature, in deg.F

( deg.C).

T0=the measured ambient room temperature, in deg.F

( deg.C).

CC=0.210 Btu/lb- deg.F (0.88 kJ/kgy deg.C),

specific heat of test container.

Cp=1.0 Btu/lb- deg.F (4.187 kJ/kgy deg.C),

specific heat of water.

Ke=3,412 Btu/kWh (3,600 kJ/kWh) conversion factor of

kilowatt-hours to Btu's.

4.4.2 Microwave oven test power output. Calculate the microwave

oven test power output, PT, in watts (J/s) as specified in

Section four, paragraph 12.5 of IEC 705 Amendment 2 See Section 430.22.

The calculation is repeated for each test as required in section 3.2.3.

The average of the two or three PT's is used for

calculations in section 4.4.4. (See 10 CFR 430.22)

4.4.3 Microwave oven annual energy consumption. Calculate the

microwave oven annual energy consumption, Emo, in KWh's per

year, defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.028

Where:

EM=the energy consumption as defined in Section 3.2.3.

OM=79.8 kWh (287,280 kJ) per year, the microwave oven annual

useful cooking energy output.

[[Page 51991]]

ET=the test energy as calculated in Section 4.4.1.

4.4.4 Microwave oven cooking efficiency. Calculate the microwave oven

cooking efficiency, EffMO, as specified in Section four,

paragraph 14 of IEC 705.

4.4.5 Microwave oven energy factor. Calculate the energy factor or the

ratio of the useful cooking energy output to total energy input on a

yearly basis, RMO, defined as:

[GRAPHIC] [TIFF OMITTED] TR03OC97.029

Where:

OM=79.8 kWh (287,280 kJ) per year, annual useful cooking

energy output.

EMO=annual total energy consumption as determined in Section

4.4.3.

[FR Doc. 97-25745 Filed 10-2-97; 8:45 am]

BILLING CODE 6450-01-P