CAS-RM-80-118 COMMENT 0B

Wedne.day 

October 14, 1181 

DEPARTMENT OF ENERGY 

0ffIc. of ConMf'Yation and Renewable 

EMrgr 

10 CFR hrt C30 

lDoc* .. No. CAS-ft ...... ',I) 

Energy Con •• ",atlon Program for . 

Con.umer Products; Test Proc:edurM 

for R.frtgerators and R.frIg .... torFreue,.. and FrHura 
CAS-RM-80-118 COMMENT 0B

Proposed Rules 

This I8CfIon 01 the FEDERAl REGISTER 

c:ontahI nolIces to the public 01 the 

propoeed Issuance 01 rules It1d 

regulallontL The purpose of these notices 

Is to ,.;v. Interested penon. an 

oppor\LWIity to participate "' . .Ihe rule 

rnaIdng priot to the adoption of IN final 

ruIeL 

DEPARTIIENT OF EHERQY 

0i'fIci of ConMrvation end Renewable 

EMr9Y 

10 CFR Part 430 

(Doebt No. ~u-ao-11a) 

Energy Conservation Program for 

COnsumer Products; Test Procedures 

for Refrigerators and RefrigeratorFreezers, and F .... Z8f'S 

AO£NCY: Office of Conservation and 

Renewable Energy. DOE. . 

AeT1ON: Notice of proposed rulemaking. 

SUloIIIIAR"I': The Department of Energy is 

issuing this notice of further rulemaklng 

concerning proposed amendments to the 

test procedure. for refrigerators and 

refrigerator-freezers. and freezers. The 

present notice is a modification of the 

proposed amendments published July 14. 

1900. The test procedures appear at 10 

CFR Part 430, Subpart B. They are part 

of the Ener-n Conservation Program for 

Consumer Products established 

pursuant to the Energy Poliey and 

Conservation Act (Pub. L. 94-163; 89 

SIal 911). as amended by the National 

Energy Conservation Policy Act {Pub. L. 

S5-619.92 Stat. 3266}. Among othar 

program elements. the legislation 

req1·jres the.t standard method. of 

testing be prescribed for covered 

products. The rule changes being 

proposed reduce the test burden on manufacturers. . 

DATES: Written comments in response to 

this notice by November 30. 1981. 

ADORESSES: Comments to Ms. C. Snipes. 

U.S. Department of Energy. Office of 

Conservation and Renewable Energy. 

Hearings and Dockets. CE-62. 1000 

independence Ave. S.W .• Washington. 

D.C. 20585. 

FOR I 'IRTHER INFORMATION CONTACT: 

James 1'0.. Smith, U.s. Department of 

Energy. Office of Conservation and 

Renewable Energy. Office of Bulldlng 

Energy Research and Development. Test 

and Evaluation Branch. Room GH--065. 

1000 Independence Ave. S.W .. 

Washington. D.C. 20585. (202) 252-9'121. 

Eugene Margolis. Esq .. U.s. Department 

of Energy. Office of General Counsel. 

GC-33. Room 68-114. 1000 

Independence Ave. S. W .. Washington. 

D.C. 20585. (202) 252-9510. 

SUPPUMINTARY INFORMATION: 

A. Background 

On October 1. 1917. the Department of 

Energy (DOE) aaawziecJ Ibe authority of 

the Federal Energy Adiii1nistration 

(FEA) for the Energy eonvservaUon 

Program for Consumer Products under 

Section 301.of the Department of En4!.rgy 

Orgnlza tlon Act (Pub. L. 95-01). The 

Energy Conservation Program for 

Consumer Product. was established by 

FEA purnant to ntle Ill. rart B of the 

Energy Poliey and Conservation Act 

[EPCA). Subsequently, EPCA was 

amended by the NatiolU'J Energy 

Conservation Policy Act (NECPA). 

Rererences in this notice to "the Act" or 

10 section of the Act. refer to the Energy 

Policy and Conservation Act. as 

amended by NECPA. 

The Act requires DOE to prescribe 

standardized test procedures to measure 

the energy consumption of certain 

consumer products. Including 

refrigerators and refrigerator-freezers. 

and freezers. Test procudurea were 

proposed for refrigerators and 

refrigsrator-freezera. and freezers by 

notice issued April 12, 1977 (42 FR 21516, 

April 21.1911). A public bearing on the 

proposed test procedures was beld on 

June 14. 1977. Final test procedures were prescribed on September 6, 1977 (42 FR 

46140. September 14. 19'17). 

Subsequently. a Petition for 

Rulema\dng was submitted by the • Association oJ Home Appliance 

Manufacturers (AHAM). This petition 

requested that DOE examine shortened 

test procedures for refrigerators and 

refrigerator-freezers. md freezers. 

AHAM stated that Ita alternate test 

procedures were much less burdensome 

and would give results that would differ 

by less than four percent from those 

obtained under the exi.ting DOE test 

procedures. Upon the request of DOE. 

the National Bureau of Standards (NBS) 

experimentally evaluated the alternate 

test procedures sup,gested by AHAM. 

After study. NBS recommended to DOE 

revised test procedures which 

incorporated many of the AHAM 

suggestions. On July 14.1980. DOE 

Federal ~ 

Vol 46. No. 198 

Wednesda,. October 14. 1981 

proposed thelle revised test procedures 

as an amendment to the existing 

procedures (45 FR 41396). 

Information received by DOE during 

the pubUc bearing on September 9. 1980. 

and In written comments in response to 

the July 14. proposal ravealed certain 

inadequacletl with the definition of 

IIteady state conditions and with the 

requirements for the wt chamber 

ambient air temperature sracUenL 

lnsufficleat IDformation wu available in 

the rulemaldns record to addreu these areas satisfactorily. Today. DOE Is 

proposing certaln additional chanaes to 

the refrigerator and "frigerator-~r. 

and freezer proposed teat procedures of 

July 14. to satisfy concerns raised by 

commenters. 

B. Disellsllon 

(1) Temperature Contrals. For 

products with a single temperature 

control knob. the existing test 

procedures require that energy 

consumption be measured at three 

control settinga (warm. mid. and cold). 

The July 14 proposal required only two 

settin3S. one at the midpoint and the ,. 'ber at either the warm or cold setting 

&0 that the temperatures of the two 

settings bncket the standardized 

temperature; Standardized temperatures 

are 15· F in the freezing compartmant for 

refrigerators. 5- F in the freaing 

compartment for refrigerator-freezers. f1" 

F for freezers.. and 33" F in the fresh food 

compartment for ~-refrigerators. 

On product. with two temperature 

controls. the present test procedures 

require that products be tested· at eo"':'" 

of the extreme posiHonl of the controls 

(warm/warm. warm/cold. cold/warm. 

and cold/cold}. The July 14 proposal 

reduced the number of test points from 

four to two. The finst test Is made with '\ 

both controls set at their midpoints. and 

the second test is mede at either the 

warm/warm (lr cold/cold setting as required 10 that the compartment 

temperaturel bracket the standardized 

temperature. 

(2) Three-year Period. The July 14 

proposal wo.uld have eliminated the 

existing test procedures for refrigerators 

and refrigerator-freezers. and freezers. 

Since the proposed snd existing test 

procedures give almost identical results. 

several commenters requested that a 

three-year period be allowed during 

which the use of either test procedure 

would be allowed. The commenters 
CAS-RM-80-118 COMMENT 0B

Federal R~ter I VoL 46. No. 196 I Wednesday, October 14, 1961 I Proposed Rules 50545 

staled that manufacturers should have 

the option to teat their producb under 

either tesl procedure durinlthis three· . 

year period 10 they would not have to 

releallmmediate}y aU models which are currently labeled.Slnce the differences in 

resulb obtained betweeD the two teat 

procedures ahould be small and would 

not mislead consumers. DOB Is 

propoalng uae of either procedure during a three-year period. 

(3) T •• , CiuJmber Ambient 

Temperatun Gradient. Commentera 

noted that the DOE revised procedure 

. did ~ cootaiD a requirement that the 

test chamber ¥ertical ambient air 

tempera~ gradient be maiDtained 

when testa are iD progrea .. DOB and 

NBS agree lhls requirement Is advisable. 

Therefore. both the requirement and it 

method for measuring ambient gradient are included in today'. proposed 

amendmenl 

(4) Definition of "Steady·stote" 

Conditians. The July 14 proposal 

required that a tesl period could nat 

start until the.unil being tested reached 

"steady-state" (non.varying) 

temperature conditions. However. a precise definition of "steady-elale" 

conditions was not iDcluded. 

Commenters rec;ueated that DOE 

incorporate the definition used in 

AHAM Standard HRF-1-1979. NBS and 

DOE evaluated this suggestion but found 

that the AHAM definition would not 

completely define steady staie 

conditions for all products under all 

circumstances. Consflquently, today', 

proposed rule includes a new defmitioll 

of "steady-state" conditioIl8 that i. 

designed to be compatible with the July 

14 teat methods under aU circumstances. 

(5) Accuracy of Te.mperalurtt 

Measurements. While analyzing public 

coruments. NBS discovered that the 

AHAM standard (AHAM-HRF-1-1979), 

referenced by the July 14 prop05al, did 

not clearly define the required accuracy 

of temperature measUrements. 

Consequently, today's proposed rule 

Specifies the ",me accuracy requirement 

contained in the existing DOE test 

procedure. 

(6) Non-time Initiated (Demand) 

Defrost. Many commenters objected to 

the inclusion in the July 14 proposed rule 

of a procedure for measuring the energy 

consumption of refrigeration products 

with non-time initiated (demand) 

defrost. They stated that this type of 

system. although technologically 

feasible. is n'''' currently marketed In the 

United States. After publication of the 

proposed rule, the "Provisions for the 

Waiver of Consumer Product Test 

Procedures:' which allow the Assistant -

Secretary for Conservation and 

Renewable Energy temporarily to waive 

test procedures for a particular covered 

product. became effective (45 FR 64108, 

September 26. 1980}. Consequently, DOE 

has concluded that test fd'Ocedures for 

non·time lnltl.ted defroet products are not currently needed. If such products 

are prot'uced in the future and the then 

existing test proc:edurea do not 

accurately measure the true energy 

consumption of the machine .. the 

manufacturer may petition for a waiver 

froM the te.t proceduree (10 CFR 430.21). 

Accordingly, today's proposed ru.la doe. 

not include telt procedure. for non-time 

Initiated defrost producta. 

{7} Lor.a-time Initiated Defrost. One 

commenter. when reviewing the nontime irJtiated defrost procedures. noted 

that these procedures could be adapted 

very easUy to newly-designed automatic 

d!!frost products which operate for 

unusuaUy long time periods. I.e~ greater 

than 24 hours. between defrosting. NBS 

investi&ated this method and found that 

such a procedure could greatly reduce 

test iline, since a test point that 

currently required four days of testing 

might be obtained in lesa than Z4 hours 

with almost with no loss of accuracy. 

Today'. proposal Incorporates an 

alternate procedure for testing of 

automatic defrost refrigerator-freezers 

and freeurs which require more than 14 

hours of compresaor-operating time 

between defrost periods. NBS and DOE 

chose the fourteen hour period because 

a product whose compressor 1'UIl8 6O'Jri of 

the time would require a test period of 

greater than 24 hours. A longer test 

period could be burdensome arid does 

not resullin significantly increased . 

accuracy since units which operate for more than 14 hours between defrost 

cycles use only about 1.5" of their 

electri.cal energy consumption to 

perfonn the defrost function. 

(8) SpeciaJ Case1I for Refrigerators 

and Refrigerotor-freezers. NBS review 

of the July 14 proposal bas indicated 

that there era two cases. though 

occurring infrequently, where the 

calculation procedures need to be 

defined more precisely. TIle first case 

occurs when the &eezer compartment 

(or in the case of an all-refrlgerator, the 

fresh food compartment] temperatures 

are always below the standardized 

temperatures for reporting energy 

consumption. In this case. the energy 

consumption to be reported Is that 

which oa.-urs at the warmest control 

settings; hence there is no need to 

perform a test at the colder settings. The 

second case occurs when the 

compartment temperatures are always 

above the standardize temperatures. 

These conditions usually characterize a 

product whose refrigeration system is 

uoderdcaigned.. For these products. tha 

medium end cold temperature control 

settings will likely result in compartment 

temperat'.lJ'8' very close together since 

the compressor will probably be running 

almost constantly at both control 

settings. Since energy use is determined 

by extrapolating the resulta of these two 

test points. imaU errors In each point 

could result in large errors in the 

extrapolated result. Conaequently. a test 

witb tbe temperature controls set iD the 

warm positions ,bould be performed so the energy D88 may be determined ;nuch 

mora precUely by an extrapolation from 

the warm teat point to the cold test 

pOint. Todays proposed teat procedures 

Include the above provisions for treating 

these two lpedal cases. 

(9) AlJ-re/rigemlors. The July 14 

propo.al defined an all-refrigerator U B 

l'i!frlgerator whose freeezing !;~,mpartt~.mt volume was leas than 0.25 

cubic feet. Dull to the smallrlze of this 

compartment. no load of frozen food 

packages was required in the freezer. A 

manufacturer requested that this 

definition be '.:hanged to include models 

whose freezer volume was less than 0.30 

cubic feel The company makes a 

product with a freezer volume greater 

than 0.25 cubic feet but les8 than 0.30 

cubic feel The commenter Ita ted that 

the freezer unit fa still too tma1l to have 

the frozen fond packnges properly 

arranged. NBS analyzed these comments 

and concluded that refrigl"rBtors whose 

freezer volumes are smaller than 0.50 

cubic feet .would probably not offer 

enough space to arrange properly a test 

load in the freuer~In todaya proposed 

rule. DOE hal changed the definition of 

an all-refrigerator to include units with 

freezer volumes less than 0.50 cubic feet. 

These units will be tested without a load 

in the freezer. DOE invites comment and 

data from interested parties concerning 

the definition of an all-refrigerator. 

Commenters also requested that DOE 

provide a method to calculate t.b. 

adjusted volumll of an all-refrigerator. 

Adjusted volvme is used to compensate 

for the fact that of two similar products 

with equal ~tal volumes. the unit with 

the larger ratio of freezing compartment 

volume to total volume will consume more energy. For refrigerators. 

refrigerator-freezers. and freezers. the 

adjusted volume is calculated by the 

freezer volume multiplying by aD 

ad1ustment factor, and the resulting 

product Is added to the fresh food 

volume. This adjusted volume. which is 

a measure of uaeful output of services. is 

divided by the electrical consumption to 

determine the energy factor of the 

producL For the all.refrigerators. 

adjustment factor values of 1.12 and 1.0 
CAS-RM-80-118 COMMENT 0B

'50546 Federal Register I Vol. 46. No. 198 I Wednesday, October 14, 1981 /Proposed Rules 

were suggested by eommenters. The i.12 

factor II based on an auumed freezing 

compartment temperature of 32° F. 

which cannot be confirmed Ilnca no freezer compartment temperature' 

mealurements are required. Even It the 

temperature were known to be kept at 

32° F, the 1.12 adjultmeflt factor would 

only be appropriate It the freezing . 

compartment In all-refriseratora was 

confIgUred In the same geometrical 

fashion al In refrigeratora and • 

refrigerator-freezers. Typically. this Is 

not the cale Iince aD-refrigerator 

freezing compartments do not usuaDy 

occupy the entire upper portion of the 

Itorage volume. Consequently, today's 

propoled rule includes an adjustment 

factor of 1.0. and the adjusted volume 01 an aD-refrisera tor would be equal to the 

lum of the volumes of the frelh food and 

freezer compartments. 

(10) Freezer Two-point Test A 

commenter complained that the twopoint freezer telt procedure propoled on 

. July 14, 1980, would cause a decreale in 

intra-laboratory repeatability of test . results. which due to the statiltical ..... 

sampling plan. would increase the. 

number of actual tests required to 

maintain the same ltatistiCal confidence 

level. Data from a single product were 

provided by the commenter and were 

reviewed by NBS and DOE. These data 

were found to be insufficient to IUpport 

the commenter's polition. 

Consequently, today'l proposed 

freezer test procedure contains the twopoint test procedure as proposed on July 1~ . 

(11) Freezer Performance. Storage 

volume, in addition to eltlmated annual 

operating cost. II the only measure 01 

performance for freezera in the ex1stina 

test procedurel; One manufacturer 

requested that DOE Include another 

measure of freezing performance In the 

freezer test procedure. Freezing 

performance would quantify the rate at 

which the freezer could lower the 

interior termperature. The commenter 

stated that without sueb a requirement It 

Is possible to design products with low 

energy consumption which do not freeze 

food at acceptable ratel. DOE 

acknowledges such designs are 

technically polsible but hal no 

knowledge of their actual exiltence. 

Accordingly. DOE 'I not propoling . , 

freezing rate at thil time as a mealure 01 

performance. 

(12) Mi8cellaneoull. After 

conlideration of all the commentl and 

consultation with NBS. DOE has 

incorporated certain minor technical· 

and editorial changel that were not 

specifically disculsed above. For 

example. the test period for non-cycling 

products wal changed from 30 minutes 

to 32 mlnutel to be ellenly divisible by measurement of energy ulage for' 

the maximum 4 minute Interval between refrigeratora and refrigerator-freezers. 

reading.. . and freezers. The action of prescribing 

An analYlis of technicallsluel raised these revised telt procedurel wiD not 

during the comment period 01 the July 14 relult In any environmental impact .. propolal was performed by NBS. The Because.1t Is clear that the proposed 

technical analYlis entitled "Revisions to rulemaking Is not a major Federal action 

the Propoled Refrigerator. Refrigerator- Ilgnificantly affecting the quality of the 

freezer. Freezer Telt Procedure" Is . . . human environment, DOE has 

avaDable for lnapectlon at the DOE determined that neither an EA nor an 

Freedom of information Reading Room. ElS Is required. 

Room 1&-190 (Docket No. CAS-RM--. The propoled rule has been reviewed 

118). 1000 Independence Ave .. SW.. in accordance with Executive order 

Walhington. D.C. 20585. 12291 and it hal been detennined that 

C. WriUan Comment Procedure the. proposal Is significant In nature bilt 

Interested persons are invited to doel not have major impacts to 

participate in this rulemaldng by manufacturers and consumers (I.e .. 

submitting data. views or comments would not Impose annual economic 

costs of $100 million or more). with respect to the propoled Consequently. a re-"atorv analysll bas amendments set forth in thil notice. IS'" 'J 

Comments sbould be identified on the not been prepared for thil proposed rule. 

outside of the envelope and on Today'l proposed rul~ bal allO ~en 

documents lubmitted to DOE with the reviewed in accordance with the 

designation "Refrigerators. Refrigerator- Regulatory Flexibility Act. Since the rule 

freezers. and Freezers-Proposed Test Is Intended to reduce testina burden for 

Procuedure Revision; Docket No. CAS- both smaD and large bUlinesses aUke. 

RM-60-11S," Fifteen copies Ibould be DOE has determined that no further 

submitted if pol81ble. AU comments specific impact analyses are required. 

received by the date specified at the In consideration of the foregoing. (1) 

beginning of this notice. and aD other the proposal. set forth at 45 FR 41396 e' 

relevant information. wiD be conlldered seq .. July 14, 1980, to amend Chapter n 

by DOE before final action Is taken on of TItle 10. Code of Federal Regulations, 

the proposed regulation. Purluant to the Is withdrawn and (2) it is proposed to 

provisions of 10 CFR 1004.11. any person amend Chapter n of Title 10. Code of 

lubmittina information which he or ahe Federal Regulations, al let forth below .. 

believes to be confidential and exempt JalUed In Wa.hlngtoll, D.c.. September Z2, 

by law from public disclQsure should 1981. . 

submit one complete copy. and fifteen Joeepb J. Tribble. 

copies from which information claimed A--i "'_ ,, ____ ._.1 

to be confidential bal been deleted. In """" stont ......... tary. """""'TffUtion WKI Renewable Energy. accordance with the procedUlll!s 

established at 10 CFR 1004.11. DOE sbaD PART 430-ENERGY CONSERVATION 

make its own determination with regard PROGRAM FOR CONSUMER 

to any claim that information lubmitted PRODUCTS 

be exempted from public disclosure. Provisions of 10 CFR Part 430. 

D. ~egulatory and Environmental Subparts A and B and Appendices A 

Review and B are amended as follows: 

Pursuant to Section 1(a)(1) of the 

Federal Energy Administration Act of 

1914. a copy of the July 14 proposed rule 

was submitted to the Administrator of 

the Environmental Protection Agency 

for his comments concerning the impact 

of the proposal on the quality of the 

environmenL No commentl were 

received from the Administrator. 

In accordance with the requirements 

of the National Environmental Policy 

Act of 1009 (NEPA). 42 U.S.C. 4321 et 

seq .• DOE has evaluated the propoaed 

revision of test procedures for 

refrigeratora and refrigerator-freezers. 

and freezera to determine It an 

environmental asaessment (EA) or an 

environmental imp-act statement (ElS) is 

required. The test procedurel will be 

used only to standardize the 

Subpart A-General Provisions 

1. Section 430.2 definitions of "electric 

refrigerator." "electric refrigeratorfreezer." "freezer." ''refrigerator.'' and 

"refrigerator-freezer" are revised to read 

8S (ollow.: . 

t au [Amended) 

• • • • • 

"Electric refrigerator" means a 

cabinet designed for the refrigerated 

storage of food at temperatures above 

32°F .. and having a lource 01 

refrigeration requiring lingle phase. 

alternating current electric energy input 

only. An electric refrigerator may 

include a compartment for the freezing 

and storage of food at temperatures 

below 32°P .. but does not provide a 
CAS-RM-80-118 COMMENT 0B

Federal Regl.ter , Vol. «S. No. 198 I Wedn9day. October 14. 1981 I Proposed Rules 50547 

separate tow temperature compartment 

designed for the freezing of and the tons 

term storage of food at temperatures 

below8·F. 

• • • • • 

"Electric refrigerator-freezer" meant a 

cabinet which consists of two or mora 

compartments with at lea.t one of the 

compartments de.igned for the 

refrigerated .torage of food. at 

temperatures above 32"F. and with at 

least one of the compartments designed 

for the freezing of and the .torage of 

frozEln foods at temperatures of 8"F. or 

below which may be adjusted by the 

user to a temperature of O"F. or below. 

The lOurce of refrigeration requirel 

• ingle phase. alternating current 

electrical energy input onl~. 

• • • • • 

"Freezer" means a cabinet designed 

as a unit for the storage of food at 

temperatures of O·F. or below. having 

the-ability to freeze food and having a 

source of J:efrigeration requiring .ingle 

phase. alternating current eDergy input 

only. , 

• .. . • • 

"Refrigerator" means an electric 

refrigerator. · ... . .. "Refrigerator-freezer" means an 

electric refrigerator-freezer. 

Subpart B-T •• t Procedures 

.2. Section 430.22 paragraphs (a) and 

(b] are revised and (bl(6) is added to 

read as follows: ' 

1430.22 Test procedures for menures of 

energy consumption. 

(a) Refrigerators and-refrigeratorfreezers. (1) The estimated annual 

operating cost for electric refrigerators 

and electric refrigerator-freezers without 

an anti-sweat heater switch shall be the 

product of the following three factors: (i) 

The representative average-use cycle of 

365 cycles per year. (ii) the average percycle energy consumption for the . 

standard cycle in kilowatt-hoUTS per 

cycle. determined according to 4.1 of 

Appendix A or 6.2 of Appendix Al of 

this subpart. and (iii) the representative 

average unit cost in dollars per kilowatt. 

hour as provided by the Secretary. the 

resu1tins product then being rounded off 

to the nearest dollar per year. 

(2) The estimated annual operating 

cost for electric refrigerators and electric 

refrigerator-freezers with an anti-sweat 

hea ter switch shall be the product of the 

following three factors: Ii) The 

representa tive average-use cycle of 365 

cycles per year. (ii) half the sum of the 

average per-cycle energy consumption 

for the standard cycle and the average 

per-cycle energy consumption for a test 

cycle twe with the antl-.weat beater 

twitch in the position let at the factOf)' 

lust prior to shipping. each in kilowattbourl per cycle. determined according to 

U of Appendix A or 8.2 of Appendix A1 

of thia aubpart. and (W) the 

representative average unit cost in . 

dollars per kilowatt·hour .. provided by 

the Secretary. the retulting product then 

being rounded off to the nearest dollar 

per year. 

(3) The estimated annual operating 

.cost for any other specified cycle type 

for electric refrigeratora and electric 

refrigerator-freezers ahall be the product 

olthe following three factora: (i) The 

representative average-uH cycle of 365 

cycles per year. (il) the average per • 

cycle energy consumption for the 

specified cycle type. determined 

according to U of Appendix A or 8.2 of 

Appendix Al to this lubpart. and (W) 

the representative average unit cost in 

dollars per kilowatt-hour as provided by 

the Administrator. the reaulting product 

then being rounded off to the neareat 

dollar per year. 

(4) The energy factor for electric 

refrigeratora and electric refriseratorfreezers. expressed in cubic feet per 

kilowatt-hour per C)'~e. sball be-

(i) For electric refrigerators and 

electric refrigerator-freezers not having 

an anti-sweat beater awitch, the 

quotient of (A) the adjusted total volume 

in cubic feet, determined according to . 

4.2 of Appendix A or 6.1 of Appendix A1 

of this subpart,dMded by (B) the 

average per-cycle energy consumption 

for the standard cycle in kilowatt-hours 

per cycle. determined according to 6.2 of 

Appendix A of this subpart. the resultins 

quotient then being rounded off to the 

second decimal pla~. and 

(iI) For electric refrigerators and 

electric refrigerator-freezers having aD 

anti-sweat beater awitch, the quotient of 

(A) the adjusted total volume in cubic 

feet. determined accordins to 4.2 of 

Appendix A or 6.1 of Appendix Al of 

this subpart. divided by (B) half the sum 

of the average per-cycle energy 

consumption for the standard cycle and, 

the average per-cycle energy 

consumption for a test cycle type with . the anti-aweat heater switch in the 

position .et at the factory. each in 

kilowatt-hours per cycle. determine 

according to U of Appendix A or 6.2 of 

Appendix Al of this subpart. the '. 

resulting quotient then being rounded off 

to the second decimal place. 

(5) Other useful measures of energy 

consumption for electric refrigerators 

and electric.refrigerator-freezers shall 

be those measurea of energy 

consumption for electric refrigerators 

and electric refrigerator-freezers which 

the Secretary determines are likely to 

allist consumen in making pun:huing 

decl.iona and which are demed from 

tha appUcation of Appendix A or 

Appendix A1 of this subpart. 

(6) The alternative uniform tut 

method for measuring the energy 

consumption of electtic refrigeratora and 

electric refrigerator-freezers .et forth in 

Appendix Al of this subpart may be 

Uled instead of the procedure aet forth 

in Appendix A of this subpart until 38 

JIlonths from the effective date of this 

amendment. After that date. Appendix 

A of this subpart may not be used and 

only Appendix Al (alternative uniform 

test method) may be used. 

(b) F'reez:en. (1) The estimated annnal 

operating cost for freazen without an 

anti-sweat heater IWitcb shall be the 

product of the following three fac:tonr. (i) 

The representative average-use cycle of 

365 cycles per year. (0) the average per. 

cycle energy consumption for the . 

atandard cycle in kilowatt-hours per 

cycle. determined according to u of 

Appendix B or L2 of Appendix Bl of thia 

subpart. and (ill) the representative 

average unit coat in dollars pe ldlowatt. ' 

hour as provided by the Secretary. the 

resultins product then being rounded off 

to the nearest dollar per year. 

(2) The estimated annual operating 

cost for freezers with an anti-sweat 

beater sWitch shall be the product of the 

followins three factors: (i) The 

representative average-use cycle of 365 

cycles per year. (0) half the sum of the 

average per-cycle energy consumption 

for the standard cycle and the average 

per-cycle energy consumption for a test 

cycle type with the anti-Iweat heater 

switch in the position set at the factory. 

each in kilowatt-hours per cycle. 

determined according to 4.1 of Appendix 

B or 8.2 of Appendix Bl of this lubpart. 

and (iii) the representative average unit 

cost in dollars per kilowatt-hour al 

provided by the Secretary. the resultins 

product then being rounded off to the 

nearest dollar per year. !' 

(3) The estimated annual operating 

cost for any other specified cycle type 

for freezers shall be the product of the 

following three factors: (i) The 

representative average-use cycle of 365 

cycles per year. (il) the average per-' 

cycle energy consumption for the 

specified cycle type. determined 

according to 4.1 of Appendix B or 8.2 of 

Appendix B1 of this subpart and (iii) the 

representative average unit cost in 

dollars per kilowatt-hoUr as provided by 

the Secretary. the resUlting product then 

being rounded ~ff to the nearest dollar 

per year. . 

(4) The energy factor for freezers. 

expressed in cubic feet per kilowattbour per cycle. shall be-
CAS-RM-80-118 COMMENT 0B

50548 Federal Register I Vol. 46, No. 198 I Wednesday. October 14. 1981 I Proposed Rules 

(I) For freezers not bavins an antisweat beater switch, the quotient of (a) 

the adjusted net refrigerated volume in 

cubic feet. determined according to 4.2 

of Appendix 8 or 6.1 of Appendix B1 of 

this subpart. divided by (8) the averag8 

per-cycle energy conlumptlon for the 

standard cycle in kilowatt-bours per 

cycle. determined according to IL2 of 

Appendix 8 of tbJs subpart. the resuJtin8 

quotient then being rounded off to the 

second decimal place. and 

(ii) For freezers bavins an anti-sweat 

beater switch, the quotient of tAl the 

adjusted net refrigerated volume In 

cubic feet. determined according to 4.2 

of Appendix 8 or 6.1 of Appendix B1 of 

this subpart. divided by (8) balf the s~ 

of the average per-cycle energy 

consumption for the standard cycle and 

the average per-cycle energy 

consumption for a test cycle type with 

the anti-sweat switch in the position set 

at the factory lust prior to shipping. each 

in kUowatt-bours per cycle. determined 

according to 4.1 of Appendix 8 or 6.2 of 

Appendix 81 of this subpart. the 

resuJtin8 quotient then being rounded off 

to the second decimal place. 

(5) Other useful measures of energy . 

consumption for freezers sball be those 

measures of energy consumption for 

freezers which the Secretary determines' 

are likely to alsist consumers in making 

purchasing decisions and which are 

derived from the appUcation of 

Appendix 8 or Appendix B1 of this 

lubpart . 

• • • • 

t6) The alternative uniform test 

method for measuring the energy 

consumption for freezers set forth in 

Appendix 81 of this subpart may be 

used instead of the procedure set forth 

in Appendix 8 of this subpart until 36 

months from the effective date of this 

amendment. After that date. Appendix 8 

of this subpart may not be used and only 

Appendix 81 (alternative uniform test 

method) may be used. 

• • • • * 

3. Subpart 8 of Part 430 Is amended by 

adding after Appendix A. Appendix At. 

as follows: 

Appendix Ai (Aitematlve) 10 Subpart B of 

Part 430-Uoiform Tnt Method for 

Measuring the Energy Collsumptioa of 

EIedrlc Refrigeraton and Electric: 

Refrigeralor-Freezenl 

1. Definition, 

1.1 "HRF-1-1919" means the AlSoclation 

of Home Appliance Manufacturers slandard 

for hou.ehold refrigerators. combination 

refrigerator-freezers. and household freeze .... also approved as an American National 

Standard 81 a revision of ANSI B 38.1-1970. 

2.3 Condltlona for automatic defrost 

refrlgerator·freezers. For automatic defrolt 

refrigerator-freezers. the freezer . 

compartmenta shall not be loaded with any 

frozen food packagel. Cylindrical metallic 

1.% "Adlulted total voluma" meana the .um of (II the fresh food compartment voluma aa defined In HRF-t-1919In cubic feet. and . 

(ill the product of an adlultment factor and 

the net freezer compartment volume aa 

defined In HRF-t-l979, In cubic feet. 

1.3 "Anti-Iweat heater" meane a device 

Incorporated Into tha design of a refrigerator or refrigeralor.freezer to prevent the 

accumulation of mollture on exterior aurfacet 

of tha cabinet under conditione of high 

ambient humidity. 

~ maases of dimenalonl 1.12 ± 0.25 Inchea (2.9 

± 0.8 em) in diameter and height ahall be 

attached in good thermal contact with each 

lemperature lensor within the refrigerated 

compartmenta. AU temperature mealurlng 

Hneor ma .... ahall be lupported by nonthermally conductive IUpporta In auch • 

manner thet there will be at least one Inch 1." .. All-refrlgeralor" meana an electrio 

refrigerator which don not Include a . 

compartmenl for tha Itorage of froun food at • temperatures below 32"}7 (o.o°C).lt may 

includa a compartment of o.so cubic feel (14.% 

liters) or Ie .. for freezing and Itorage of Ice. 

t.5 "CYcle" melU1l the period of H hours 

for which the energy use of an electric 

refrigerator or electric refrigerator.freezer II 

calculated aa though tha conlUlDer activated 

compartment temperature controll were Ht 

.0 that the desired compartment 

temperaturel were maintained. 

1.8 "Cycle type" meana the 8el of test 

conditionl having the calculated effect of 

operating an eJectric refrigeralor or electric 

refrigerator-freezer for a period of H hours. 

with the consumer activated controls other 

than those that control compartment 

temperature. HI 10 establish various 

opera ling characteriltica. 

1.7' "Standard cycle" melU1l the cycle type 

In which the antisweat heater controL when 

provided, I •• et In the hlgheat energy 

consuming po.ition. 

1.8 "Automatic defrost" melU1l a syslem 

In which the defrosl cycle II automatically 

Initiated and terminated. with resumption 01 

Dormal refrigeration at the conclusion of 

defrolt operation. Th(t 'Yltem automatically 

preventa the permanent formation of fro.t on all refrigeraled surface .. Nominal refrigeratad 

food temperaturel are maintained during the 

operation of the automatic defro.t Iy.tem. 

1.9 "Long-time Defrost" meana an automatic defrost system where the timed 

Interval between defroata Is always greater 

than 14 houra. 

1.10 "Siabilization PerIod" means the 

total Jl8riod of time during wbich steady·atate 

conditione are being attained or evaluated.. 

• Z. Test Condition. 

2..1 Operational conditione. tha electric 

refrigerator or electric refrigerator-freezer 

.ball be Installed and ita operatIng conditione 

maintained In accordance with HRP-l-1.919. - Hction 1.2 through section 1.4.3.3. except that 

the vertical ambient temperatura gradienl at 

locationl 10 Inches (ZS.4 em) out from the 

centers of the two lidel of the unit being 

lested II to be maintained during ihe telt. 

Unleas the area II obstructed by ahlelds or bame •• the gradlenlll to be maintained from 

2 inchea (5.1 em) above tha noor or lupportlng platform 10 a height one foot (30.5 

em) above the unit under teat. Other 

exceptionl ere noted In 2..3 and S.l below. 

2..2 Ambient temperature. The ambient 

temperature of the air surrounding the unit 

being tested shall be 90.0 ± 1°F (32.3 ± 

o.s°c) during the time while the unit I. 

8tabilizlng to ateady Itate conditionl and 

during the teat period. 

(2..5 em) of air apaca leparating the thermal 

ma.1 from contact with any lurface. In caBa 

of interference with hardware al the aensor . 

locatione lpeclfied In aectlon 5.1. the aensora 

IhaD be placed al the neare.t adjacenl 

location IUch thai there will be a one inch air 

apace aeparating the len.or masa from the 

hardware. 

z:.. Conditione for all·refrigeraton. There 

ahall be no load in the freezer compartment 

during th. test. 

2..5 Steady State Condition. Steady Ital. 

conditiona exiat if the temperalunl 

meaaurementa in .D measured compartmenta 

taken at four minute Intervala or Ie .. during. 

stablli:zation period are not changing at a rate 

greater than 0.1·F (O.OS·C) per hour aa 

determined by th. appUcable condition of A 

orB. . A. Th. average of tha mealurementa during • two hour period if no cycling OCCUl1l or 

during a number of complete repetitive 

compre'lOr cycles through a period of no Ie .. than two hours II compared to the averaga 

over tha nexl equivalenl time period. 

B. If A abova can not be uaed, the average 

of the meaeurementa during the last two or more (complele cyclel if cycling) hoUlS prior 

to • defroal period are compared 10 the .ame averaging period prior to the foDowing 

defrost period. 

3. Test Control Setting, 

3.1 Model with no user operabl. 

temperalunl controL A le.t ahall be 

performed during which the' compartment 

temperatures and energy use ahaD be . 

measured. A second teat .hall be performed 

with the temperature control electrically 

Ihort circuited to cauae the compressor to run 

continuously. 

3.% Model with uaer operable temperature 

controL A lint tesl ahaD be performed with 

all compartment temperature control •• el at 

their median position midway between their 

warmest and coldest setting. Knob detentl 

.hall be mechanically defeated if necessary 

to altain a median aettlng. A aecond test ahaD 

be performed with all controls aet either at 

their warmeat or their coidesl setting (not 

electrically or mechanicaDy bypasaed). 

whichever la needed to cau.e the 

compartment temperatures measured by the 

two telta to bracket (I.e~ one I. above and 

one ia below) the standardized temperature 

for calculating energy consumption. If the 

atandardlzed compartment temperature at the 

warmest control setting(s) Is below the 

specified temperature and the rreah food 

compartment temperature I. always below 

45.0·F (1.22,·C). only one test need be 

performed. If the .tandardized compartment 
CAS-RM-80-118 COMMENT 0B

Federal Register I Vol. 46. Nb. 198 I Wednesday. October 14. 1981 I Proposed Rules 10549 

temperature I. alway. JP\ater than that 

specified. a Ihin:I telt tliaJJ be perfonned u8ing the warme.t control.ettIna{.} and the 

result .hall be used to determine eneru consumption In place of the medlan control{l} 

.etting tesl re.ultl. The .tendardized 

temperaturel .hall be: ' 

3.2.1 AlJ..refr!serator. sa"F (U'C) freah food 

compartment temperature. 

3.%.2 Refriserator. U'F (-... ·C) freezer 

compartment temperature. 

3.2.3 Refr!serator-l'reezer.I'F (-lS'C) 

freezer compartment temperature. 

,. Test Period 

4.1 T~.t Period. Teat.'.haD be performed 

by establishina the condition. lei forth In 

Section 2. and using control letllnp U let 

forth In Section 3. above. 

4.1.1 . Nonautomatic DeI'roat.1f DO 

automatic freezer defrost provi.lona are prOVided on the mOliel beina tested. the test 

lime period shaD start after .. ead)' .tate 

conditiona have been reached and be of not 

less than three hours In duration. DurhIa the 

test period. the compre •• or motor IhaU 

complete two or more whole compre.lOr 

cydes (a compreasor cycle II a complete "on" 

ane! a comptete "off"' period of the motor). If no "0B" cycling wID occur, .. determined 

during the .fablllzation period. tha te.l period 

.hall be three houra.lf Incomplete cycJina . (less than two compreslOf cycles) OCCW'I ' 

during a 24 hour period. the reaultl of the 24 

hour period shall be used. 

U.Z Timed Automatic DeCroaL If a timeiniUaled del'rost II provided ID the device 

being tested. the te.t time period .haD .tart , after stablllzation has been completed and be 

from one polDt durina a defrost period to the same point durins the next deCroa, period. , 4.1.' Long-time Defrolt If along-time defrost Iystem II provided In the model beillB 

tested. the test time period may c:onslst of 

two parts. A first pert would be the .ame al 

the test for a unlJ havin& no deCroat . provisions (secUon 4.1.1). The lecond part 

would .tart when a defrost period II 

manually Initiated durins a compre.sor "on" ' 

cycle and terminate at the second turn lOotS" ' 

of the comprelsor motor or after four houra. 

whichever comel firsL 

5. Test MeD8U1f11111111111 

1.1 Temperature Mealurements. 

Compartment temperatures Ihall be 

measured at the locations prescribed In 

Figurel 1.t and 7.2 of HRF-1-1979 and Ihall 

be accurate to within to.s'F (O.3'C) of true 

-value. No freezer temperature measurementl 

need be taken In an aU-refrigerator modeL 

If the Interior arrangementl of the cabinet 

do not conform with those shown In Figure 

7.1 and 7.2 of HRF-I-1979, mealurementl 

shall be taken '8t lelected Iocetions chosen to 

represent approximately the enUre . refrigerated compartmenL The Iocetions 

selected shaU be a matter of record. 

5.1.1 Measured Temperature. na measured temperature of a compartment ie to 

be the average of aU lensor temperature 

readings taken In that compartment at a particular time. Measurements shall be taken 

at regular Intervale not to exceed four 

minutes. 

6.1.2 Compartment Temperature. The· 

compartment temperature for each teat 

period lhaD be an avera", of the maasured 

temperaturel taken In a compartment durins a complete cycle or IIvera1 complete cycle. of the comprelaor motor (ona comprellor cycle II one complete motor "on" and one complete motor "off" period). For long-time defrolt model .. compartment temperature. 

.ball be those mea.ured In the first pert of 

the test period .peclfled ID U.3. • 1.1.2.1 11Ie number'of complete 

compreasor motof cycle. over which the ' 

compartment temperature Ja to be averqed 

.hall be equal to the number of minute. 

between measured temperature reacllnp, rounded up to the Dext whole minute or a number of complete cycle. over a time period 

exceeding one hour. One of the cyclellhaU be the lalt complatl comprulOr motQf cycle during the test period. • 

5.1.2.2 If no compreasor motor cycling 

0CCUl'I. the compartment temperature sbiill be 

the averase of raadings taken durIna the Jalt 

thirty-two mlnutel of the test periocl. 

6.1.2.3 If Incomplete cycIlnS OCCUII, the 

compartment temperature. ah8Jl be the _ average of all readinga taken durins the1ut 

three houri of theJalt complete Hon" period. 

1.2 Enezgy Measurementl 

Ul PeNlay Eaersy Consumption. The 

enel'8Y consumption In kIlowatt-hOllrl per day for each te., period IhaU be the energ 

expended during the test period a •• peclfied 

In secUon U adjusted to a 14 hour period. The adjnatment shall be determlDed .. follows: 

U1.1 Non automatic and time-Inltiated 

automatic defrolt refrlseratora and 

refriserator-freezer modele. The enerv 

consumptiollin kilowatt-hours per day shall 

be c:aJculated equivalent to: 

ET-EPXI440/T 

where , ET-test cycle ene:ir1 expended In kilowatthours per day, 

EP-enersy expended In kilowatt-hours 

durina the telt period. 

T -18llBlh of time of the telt period In 

mlDute .. 1440-converslon factor to adjnat to a 14 hour 

period In mlDute. per day. 

1.2.t.Z I..on,s-time Inltiated deCroaL If the 

two pert test method II uaed. the energ 

consumption ID kilowatt-hours per de, ma, be calculated equivalent to: 

ET -(l440XEPt/Tl)+((EP2-(EP1 xTZ/T1)) 

X tZ/Cil 

where 

ET-Defined In 1.2.1.1 

EPt-enel'8Y expended In kilowatt-hours 

durins the first pert of the telt. ' 

EPZ-enef8Y expended In kilowatt-hours per dey during the second pert of the te.t. ' 

1'1 and TZ-Iength of time In minutes of the 

first and second test parts relpecUvely, 

CT -Defro.t timer ~ time In hours required 

to cause It to so throll8h a complete cycle. to the nearelt tenth hour per cycle, 

1Z';"converaion factor to edjnat for a SO'Ji run 

time of the compressor and 

1440=convers!on factor to adjust to aM-hour . period. " 

5.3 Volume mealureman'" The electric 

refrigerator or electric refrigerator-freezer 

total refrigerated volume. VT. Ihall be 

measured In accordance with HRF-l-197IJ. 

lection 3.20 and aecUon Co2 Ihroush U and 

equlvalent to: 

VT-VF+VPF 

~here . VT-total rerriserated volume ID cubic feet. 

VF-fteeZer compartment volume In cubic 

feet. and 

VPF-fre.h food compartment volume III 

cubic feeL . 

B. Calculation 01 Derived Raullil from Test 

M.osurelJlBnt6 

e.t AdJulted Total Volume. 

1.1.t Electric refrlaeraton. The adjusted 

total volume, 

VA. for electric refriseraton under telt ~all be defined al: 

VA-(VFxCR)+VPF 

where 

VA-adlulted total volume In cubic feet,' 

VF and VPF are defined ID U. and 

CR.adJustment factor of 1M. dimenalonl .... 1.1.2 Electric refrigerator-freezers. The 

adjusted total volume. VA. for electric 

refr!serator-freezers under telt abell be 

calculated al follows: 

VA-(VFxCFR)+l'FP 

whera 

VF and VPF are defined In 5.3 and VA II 

define(iln e.t.1. 

eIF-adjultment factoroft.83. 

-dimenaionl.... • 1.1.3. Elactric att-refriserator. The adJnated 

total volume. VA. for aU-refriseratora - under teat IhaU be calculated at: 

VA-(VFXCAR)+VPF 

where 

VF and VFF are defined In 5.3 and VA II - defined ID 1.1.1. ' 

CAR-Adjnatment factor of UIO, 

dimelllionleu. 

U Average Per-Cycle Energy consumption. 

6.2.1 AIl-refriserator Models. The averap 

per-cycle enel'8Y consumption for a cyc1e type 

II expressed In kilowatt-hours per cyc1e to 

the nearest one hundredth (0.01) ldlowatt· 

hour and shall depend upon the temperature 

attainable In the frelh food compartment a. .hown below. . 

6.2.1.t If the freah food compartment - temperature II alway. below 38.0'P (3.3"Cj. 

the average per-cycle anersY consumption .hall be equivalent to: 

E-En 

where . .E-Total per-cycle eDeJ1Y In kilowatt-houri . per de),. 

ET II defmed In 5.2.1. and Number 1lndlcates 

the test period durins which the highelt 

fresh food compartment temperature II 

mealured. 

8.2.1.2 If one of the fresh food' 

compartment temperaturel measured for a test period II "..ater than 38.0'P (3."C). the 

average per-cycle eneru consumption shall 

be equivalent to: 

EE-ET1+((ETZ-E'l'l)X(38.0-TR1)/ 

(T.R2-TRll) where . 

E II defined In 6.2.1.1. -" 

ET il defined ID U1. 

:rR-Fresh food compartment temperature 

determined accordlna to 6.1.2 In degrees 

F. 

Number 1 and 2 Indicate mealUrementl taken 

durins the first and HCOnd lelt period al 

appropriate. and -
CAS-RM-80-118 COMMENT 0B

S05SO. Federal Register I VoL 46. No. 198 i Wedneaday. October t4r. 1981 I Propoted Rule. 

Sao-Standardized frelh food compartmalll 

temperature In degree. F. 

6.U Rel'rlgeratora and refripratorfreezen. The • veragl per-c:ycla enerv 

con.umptlon for a cycle type 1. expl1llsed ID 

kllowatt·hoUrl per-cycla to the neamt one 

hundredth (0.01) kilowatt-hour and aball be 

defined In the applicable following manner: 

U2.1 If the fre.b food compartment 

temperature Is at or below 45°F (1.z°C) ID 

both of the teats aud the freezer compartmeat 

temperature Ia alway. at or below lS'F 

(_9.4°C) In both teall of a refrigerator or at or below SOF l-15'C) ID both teall of a refrigerator-freezer. the per-c:ycJa eDeIlY 

consumption ahall be: 

E=El'l 

where ... E is dermed in 8.%.1.1. 

ET is dermed ID 5.%.1, and 

Number 1 Indicatea the te.t period dll1'ins 

which the higbeet freezer compartment 

tempera ture was measured. 

e.z.z.z If the conditiOl1l of 1J.Z.2.1 do not 

exiat. the per-cycle energy consumption shan 

be defined by the higher of the two values 

calculated by the following two formulas: 0 

E=El'l+((ET2-El'l)X(45.o-TR1)/ 

(TR2-TRf)) 

anll 

E-El'l+((ET2-El'llx(k-TFll/fI'PZ-Tf'1D 

whmt 

E il defined In 6.%.1.t, 

ET Is dermed In 5.%.1, 

TR and number 1 and Z are defined ID e.U.2. 

TF _Freezer compartment temperature. 

determined accordins to 5.U In degreM 

F, 

45.0 il a apeclfied fresh rood compartm4jnt 0_ 

temperature in degree F. and 0 0 

k Ia a consllnt 15.0 for refrigeraton or 5.0 for 

refrigerator-freazen each bem, 

Itandardized freeze!' complU'tl:aat 

temperature In depee P. 

o • 4. Subpart B of Part 430 la amended by 

adding after Appendix B. Appendix. B1. 

aa followa: 

Appendix B1 (Alternadn) to Subpart B of 

Part C30-Unlform Tnt Method for 

MealUJina the EDeru ConIumplioa of 

F_ 

1. Definitioll8. 

1.1. ''HRF-l-1S171" meaM the AllodatlOIl 

of Home Appliance Manufacturera lIandard 

Cor houaehold refrigeraton. combination 

refrlgerator-I'reezere. and household freezara. 

al80 approved as all American National 

Standard a. a venion of ANSI 838.1-191:0-

1.2 "Anti-aweat heater" meana a devlca 

Incorporated Into the design of a freezer to 

prevent the accumulatioD of mol.ture 011 

exterior aurl'acetI of the cabinet under 

condition. of high ambient humidity. 

1.3 "Cycle" means the period of 24 kolft 

for which the energy use of a rreezer 1& 

calculated at though the consumer-activated 

::ompartment temperature controla went 

preaet 80 that the desired compartmetat 

temperalurel wera mainlainecL 

1.4 "Cycle type" meenl the Nt of lett 

condition. having the calculated effect of 

opera tint a freezer for a period of 24 hove 

with the conaumer-ectlvated contrall othft 

than the compartment temperature coot.ro& 

lit .... lIbliall \'1Ilk:N6 o~n.aIq 

characterilUce. 

1.6 "Standard c:yd." IIIftOI LIM CJcle type 

in which the anti-.wea' heatar swtlCb, when 

provided. II tet ID lb. highest -ru 

coJUlWllina poaItIon. . 0 1.' "Adlu.ted total vvl_" _ana the 

product of. (l) the freezer volume u defined 

III HRF-l-l979 In cubic feet, tim. (Z) 811 

adjultment factor. 

1.7 "Automatic Dei'rOl'" meansR ly.tllD 

III wbkh the defrost cycle .. automatically 

initiated end terminsted. with resumption 01 

Dorma1refrigeration at the CODclllllon of 

del'roat operation. The Iy.tem autom1ltic:a1ly 

prevenll the permanent formation of I'roIt 011 

all refriaeraled .urfaces. Nominal refriaera ted 

food temperature. ant mainllined durtaa the 

operation of the automatic del'rost .yller&. 

1.8 "Lolli-time Defro.," IMI.JlI an 

alltomatic defro.t .y.tem whera the timed 

interYa1 betweea del'rOlb Ia alwap greater 

than 14 houn. . 

1.9 "Stabiliz.tlan Period" meal the tocal 

period of lime during which ateady-state 

conditions IlII being attained or evaluated. 

U Wod.l with UHf' operable t~hIre 

o control A. flnt III' lhall be performad witA 

temperature control Nl at (II mediaD po.itioa 

midwa, betwen thAt warmnt end coldesl 

IItllDs- A lecond te.t aban ba performed "ita 

the control lit either at the Wan:&:Ie8t or 

coldeat letting. not electrically or • 

mechanlcsny bype.sed. whichever Ia JMeded 

to caUII the compartment temperatunl 

measured by the two leall 10 bracket (oae 

above end one below) O.O"F (-11.8"C).1f the 

freezer compartment temperature at the 

warmeat control IItting ia below o.o"F (-

17.s°C). only one teat need be performed. If 

the freezer compartment temperature \a 

always greater than O.O"F (-17.8"C). a third 

test sball be performed Daing the wannest 

control letting and the reault shan be a,ed to 

determlDe energy consumption ID place of the 

median controleetting teat relults. 

4. 7ftt Pen'od. 

<&.1 Test PerIod. Teste than be performed 

by establiahing the conditione set forth in 

Section Z and uaing controltetttnp u eet 

forth ID Section 3 above. 

Z. Test Condition& 4.1.1 Nonautomatic Defrost. H no 

%.1 Openatlonal conditioD.L Tlut freezer automatic freezer defrott provll101U1 are , .han IMt IData1led and ita operaUna coaditioa. • provided on the model being tested. the tellt 

malntalDed ID accordance with 1iRP-1-1.979. time period ahan start after Iteady Itate 

section 7.z through HCIiOD 7."3.3, except that conditions have been reached and be of not 

the mb di 1 1_..L_ Ie .. than three boura duration. During the teat a lent gra ent at ocationa 10 .......... period the compresaor motor shan complete 

(%5.4 em) oulfrom tha canteD of the two two or more whole cyclea (a compreasor 

.idel of the unit being listed Is to be ....,cle II a complete "on" and a complete "orr mainllined during the teat. Unless the areala -I 

obltructed by llhieldl or bam ... the pdieDt period of the motor). If no "oil'· cycling will 

\a to be maintained froua Z Inchea (5.1 em) occur, as determlDed during the .tabiliza.tion 

above the floor or iUppOrtIng platfOJ'Dl to • period. the te.t period shall be three hoUrI. If 

height one foot (30.5 em) above the unit UDdu IIlcomplell cycUns (Ie .. than two compreaaor teat.' . cycles) 0CCUl'I during a 24 hour period, the 

z.z Ambient temperature. The ambient reaulll of the 24 hour period shall be used. 

temperature shall be 9O.O±l.o-'P (32.Z±0JrC) <&.1.2 1lmed Automatic Defrost. If a time--

during the time when the unit Ia atabilb::ing to Initiated defrost II provided ID the device 

eteady state conditions aDd duriDS tb !eat betna tested. the te.t time period ahall start 

period. after .lIbillzation has been reached 8Dd. be 

%.3 Steady State Condition. SIIa4y ItatIt from one poIDt during a del'rOit period to the 

conditions exi.t If the temperature .ame polDt dll1'ins the next del'rOlt period. 

mealuremenllm aU measured compartmenla _ .... 1.3 Long-time Initiated Defrost. U. Jonataken at four minute InllrYal. or leII during a _ time Initiated defrolt Iy.tem Ia p~vlded In . .tabillzation period are.not chan gin, at a raw the model being tHted. the teat time period 

grealer than o.l·F (o.06°CJ per how ae may consist of two partl. A Brat part would 

: 

determined bJ the applicabl. condition of A be the aame aa the test for a unit having no or B. 0 defrost provisions (section t.l.t}. The second 

A-'l1Ie average of tha meelUflJDel.b durint part would atart when a defro.t period \a 

a two hour period if no CYclin& 0CCUfI or manually initiated during a comprealOl' "an" 

during a number of complete repetitin cycle and IInninate at the IICOnd tum "on" 

compressor cyclea through a p,rlod of DO of ~ comprenor motor or after four hove. 

Ie .. than two hoUrI 11 compared to the 0 whichever comes fint. 

average onr the aext 4Jq1IivaJcnt tI.aie IS. Test Measuremenu. 

period. 

B-If A. above cannot be _d. the average of 

the meuurements durins the lilt two or 

more (complete cycleeif cycling) hoUrI 

prior to a del'rolt period are compared to 

the I8Ine averaging period prior to the 

following defro.~ period.. 

3. Test Control Settill8& 

:1.1 Model with no DIU operable 

temperature control. A teat shall be 

5.1 Temperature mealuremetllll aJuaU be 

madalD accordance with HRF-l-l919 Nctloa 

7.4.3.3 and ehall be accurate to within ±U· r 

(0.3°C) of true value. 

5.1.1 Measured Temperature. The 

.measured temperature 11 to be the averasa 01 

all aen80r temperatwe readingl taken at a 

particular time. Measuremenll lhall be takea 

at regular InterveJa not to exceed four 

minute .. 

. performed during "hich the compartment 

temperature. and energy use lhaU ". 

menured. A .. cond test ,hall be performed 

with the temperature cOI1trole\ectrically 

short c:ilcn.ited to ceuae the c:omp.reaaar to ruD 

continuously. 

5.1.% Compartment Temperature. The 

compartment temperature for each test 

period shall be an average of the meallUl'l!d 

temperatures taken during a complete cycle 

or seve:ral complete cycles of the compreNOl" 

motor (ODe CompI'euor cycle II o.ne complete 
CAS-RM-80-118 COMMENT 0B

Fed.r.1 Reallter I Vol. 46, No. ·,98 I Wednesday. October 14. 1981 I Proposed Rule. 

mo'or "Oft" elld 0ft8 complele molor "or 

period). For Iona·Ume Initi.led defrOl' 

model .. compartmelll temperature •• han be 

thoM me .. uncI III lbe Orat pall of the te., 

period 'pedlled III •• 1.3. .. 

1.1.1.1 ne number of comprauaor IDOl. 

qdea over which the compartmm' " 

tempenltura II to be e"maaed thaD be equ.1 

to the number of mlnut .. betweenm ... ured 

temperatura ,..edina' rounded up to the ne,,' 

whole Bull. On. of the cylcel thaD be the 

1e,1 complell compreaaor motor cyde dllrinl 

the "II periocl. 1.1.1.2 Uno compntllOf1DOlor cyclllll 

occun. the compartmelll temperatura ,haD be 

the ave...,e of ""dinalllken dllrinl"lbelut 

thir1y'two Buill of lb, tel' period. • u.u U Incomplel, cydilll oc:c:ura (lll' 

than one cycle) the compartment temperatura 

th.D be the avera .. of aD ,..adlllp 'aken 

dllrina the lal' three boura of lbalut 

comple'e "Oft" periocI. U EfteI'lY M ... Ul'lllllDi.: 

U.l Per-day En,fIY Conaumplloa. n. enel'lY COlllumptiOft iIlldlow.,,·houre per 

day for each te,' period thaD be lb, IIlI1'lJ 

expended durtna the 'eal period ulpedfted . iIlMctiOft U adju.ted to.:at hour periocl. ne edjUlmeol ehaU be determlDad .. foDow.: • U.U Nonautomatic and automatic , defrOllmod.I •• n. enl1'lJ couumpUOft " 

ldIow.,,·houre per day ehaU be calcWalld 

equlv.lenl to: 

ET -(EPXlt40xk)/T where 

ET-Iell cydelllllllJ axpaded ill kilowatt- . houra per day. 

EP-enefIY e"1""ded IIlldlowatt-houra 

dllrinl lbe III' perlocl. " T -Ienatb of time of the lilt period Ia 

mlDu .... lt40-CODverllOD fator to adjut to alt hoar . period ill mlDut .. per de,. and " 

K _ correctiOft faclor of 0.1 for ch .. 11reezere . and o.as for uprigh\1'reezert 10 adlull for 

a\"lrage boullhold uaa', dimellaiolll .... U.U Lona·Ume IDlUat.d d.frolL U the 

two part lei, method II uaed. the illlID' 

couumpUon IIlldlowa,,·houra per day may 

be calculaled equlvaiellt to: " 

ET-(lt40X DPl 1Tt)+ ((EP2-(EPl xT2/ 

n)) X U/CT) 

where 

ET. 1440. and K a,.. deftDed In U.U 

EP1- enlflY expellded IIlldlow.tt·houra 

durina the fifll part of the te.t, 

EPZ-lIlel'l)' expend.d til ldIow.,,·hourl per 

day durtna the llcoad part of tha I .. t, 

Cf-Cerro.t Umer run time III houra ,..quired 

to ClUM It to 10 through a complela • qde. 10 the Ilearelt tenth hour per cycle. 

lZ-COftvmlon factor 10 .dlut for a ~ run Um. of tha compre .. or. and 

nelld n-lell8th of Ume III Bute, of lb" 

fwl .nd Mcond 'ell p.11I ,...pecUv.!)'. 

1.3 Volumeme .. urem.n ... ne electric 

freezer total refrigeral.d volume. rt. ,ball be 

mu.uncI III accordance with HRY-l-11f71J. 

MelIOft 3.1 and aecliOft 1.1 tbrou.Ih U. 

I. Co/calat/OII 01 Derived /lMul,. From T .. , MtHnutwm,ml.t. 

1.1 Adluled Tolal Volume: .. 1.1 Electric rrenen. ne adlulted lotal 

volume. V A. for .Iectric fraezen under t .. 1 

thaD be deflDed II: • 

VA-vrxCl' 

.hll'l , 

YA -Idluled Iotal mume III cubic flit. 

vr-total ,..frlaerated volume III cubtc flit, and . 

CI'-Correctlon factor oItn. 

dimen.lonl .... U Avll'll' Jllr.CyIe IDerIf 

Coftlumption:· . Ul ne • ...,. perqcIe IIIUIfI1 

con.umptlon for a cyda type II expre ... cllIl 

ldIowltt-houre per qde 10 the ne .... ,t 0ft8 

hUftdredth (0.011 lU) Idlowatt·hour ud th.n 

d.pend upon the lemper.tura elteillabtl III 

the freezer compartm.nt u thoWD below. 

uu U the frener compartment 

temperature II .Iwey. belo* o.o"F(-tU°CJ,. 

the Iver ... per-qde enefIY couumpUoft 

thaD be equivalent to: 

I-m 

" where 

I-Total perocrcIa IDIfIY Ia kI.1owau-houra 

per de,. 

IT I, delined III 1.1.1. and . Number llDdicatal the lI.t period cIurlnt 

.bIeb the high .. , Inuer c:omputIIIIIIIt 

temperatura Ie me.1Ured. 

uu U 0ftI of the freu.er compartment 

tamperaturee me .. ured for a tut period Ie 

.,.ater thaD 0.0" F (11 S' C). the lverqe perCyde enerv conaumptloD ehaU be equivalent to: .' 

EI-m+(ETZ-mxlo.o-'m)/ 

(TPZ-m)) • where 

lie deflDed Ia U1.1 

IT Ie cI.liDed III 1.2.1 

TV -Freezer compartment IempeJ1ltare • 

" delenDlDad eccordiJla 10 1.1.1 III dqzeea 

P. 

Numben t and 2 IIldicata mllnremenll 

likeD dllrinl tIw ftnt and MCODCI lilt 

period u eppropriale. and 

0.0-Standanl1zed freu.er comparbDeDt 

temperature In d ........ P. 

potD&II .......... UoC; .. ... 

IUoMCODI ...... 

: 

&0551