CAS-RM-79-102 COMMENT 11

...... , 

European CommuDl" ••. 1Dd JlMtnl the lAB or the lEA. .' . '. . 

'\led In W •• hl~ol\o DC. Septe1llber 18, 

• - ... , ," ',_a _ ! ~ ";'~-, .... ~ _ .. __ '.< J. P)'II " .~, . . . ',.: ., .... ; .. ' 

At;lJIII QmeroJ eoun.J 

(fIR Doc. ,,-It,.. PUed ......,.; MI-l 

~OODI_'''' . 

omce of ConMrIIIIOII end ' .......... ......, 

(c.M No. CAc-G03] 

(Cue No. CAC«JS) 

The Energy Con.ervatlon Program for 

CoRium ... Productt wa •• Itabli.hed 

pursuant to the Energy Policy and 

~. CoaHrvaUon Act. hb. L..et-183, a. 

amended by the National EneQlY 

Conlervation Polley Act. Pub. L. 9&-618, 

and th, National Appliance Energy 

'Conservation Act 011987 (NAECA). Pub. 

L 100-12. which require. the ' . Department of Energy (DOE) to . . 

pre8cribe ltandard1zed te8t procedure. 

Energy ConMMltIon Program For 

ConIIUIMrProcluctei DecIllIon and 

Order GrMting Wa .. er From T .. t 

ProcectuNa tor CantnII AIr 

Condltlohers From ... T.-e eo. 

. to measure the energy consumption of 

certain consumer products. including 

central air conditioners. The intent of 

the test procedures i8 to provide a 

comparable measure of energy 

consumption that will assist connmen 

in making purchase decisions. These 

test procedure8 appear at 10 CFR Part 

430, Subpart B. 

• The Department of Energy amended 

AGENC;Y: Department.of Energy. 

ACTION: Decision and order. 

SUMMARY: Notice II given of the 

Decision and Order (Case No. CAC-003) 

granting the Trane Company a waiver 

for ita 1WS variable-speed model series 

central air conditioner and heat pump 

from exi8tiD8 DOE test procedures for 

detennining the unit'. Heating Sea80nal 

Performance Factor (HSPF). 

')It PURTHER INFORMATION CONTACT: 

• .1ichael J. McCabe. U.S. Department of 

Energy. Office of Conservation and 

Renewable Energy. Mail Station CE132, "'Forre8tal Building, 1000 

'Independence Avenue, SW .• 

Washington. DC 20585, (202) 58()..;9127 

Eugene Margolis. Esq .• U.S. Department 

of Energy. Office of General Counsel. 

'MailStanori CC-12. Fortestal 

Building, 1000 Independence Avenue, 

SW •• Wa8hington. DC 20585 (202) 586-

9507 . 

SUPPLEMENTARY INFORMATION: In 

accordance with 10 CFR 430.27(1), notice 

. is hereby given of the issuance of the 

Decision and Order as set out below. 

The Trane Company has been granted a 

waiver for its TWS model. series 

variable-epeed central air conditioner 

(heat pump) permitting the company to 

use an alternate test method in 

determining the Heating Seasonal 

Performance factors ~PF). 

wued in Washington. DC., September 11, 

1987. 

John R. Berg. 

['rincipaJ Deputy Assistant Secretary, 

Conservation and Renewable Energy. 

Dec:iSion aDd Order of Tb8 Department 

of Energy, Office of Cooservation and 

Renewable EnerxY 

In the matter of: The Tra~e Co: 

= 

the test procedure regulations by adding 

,430.27 on September 26. 1980. creating 

the waiver process. 45 FR 64108. DOE 

further amended the Department's 

appliance te8t procedure waiver process 

to allow the Assistant Secretary for 

Conservation and Renewable Energy to 

grant an interim waiver from test 

procedure requirements to 

manufacturers that have petitioned DOE 

for a waiver of such prescribed product 

test procedures. 51 FR 42823, November 

26. 1986. The waiver process allows the 

. Assistant Secretary for Conserva tion 

and Renewable Energy to waive 

temporarily test procedures for a 

particular basic model when a petitioner 

shows that the basic model contains one 

or more design characteristics which 

prevent testing of the basic model 

according to the prescribed test 

procedures or when the prescribed test 

procedures·may evaluate the basic 

model in a manner so unrepresentative 

of its true energy consumption . 

characteristics as to provide materially 

inadequate comparative data. 

The Trane Company (Tr.ane) filed a 

"Petition for Waiver" dated March 10. 

1987, in accordance with ,430.27 of 10 

CFR Part 430. DOE published in the 

Federal Register Trane's petition and 

solicited comments, data. and 

infonnation respecting the petition. 52 

FR 1'7315, May 7.1987. Trane 

subsequently filed an "Application for 

Interim Wai1{er" under' 430.27(g) and 

DOE wanted the Trane Company an 

interim waiver to central air «<onditioner 

test procedures. (Case No. CAC-003I). 

52 FR 17198. May 12. 1987. -

No comments were received 

concerning either the "Petition for 

Waiver" or the "Interim Waiver." DOE 

notified Trane by letter dated June 15. 

1987; that no rebuttal was required. DOE 

GOUulted with _Na~...,..Ai 

Standarda (NBS) b)' phone ucl_u... on June 2Z and 29. 1987. relpecUveb. 

and the Federal Trade Commi.,loD 

(FTC) by phone on July 23,1987. 

concemlna the Trane petiUOIl. The NBS 

responded to our requelt for an 

evaluaUon of the waiver telt procedure 

.in a letter report dated July 8.1.887. The 

FrC voiced no oppoaltion to the 

'8suanue of the waiver to Trane . 

Assertions and Determinations 

Trane', petition Beeks a waiver from 

the DOE test provislonl thet require 

testing at a Bingle compressor lpeed. 

Trane was granted a waiver from the 

DOE test provisions that require testing 

1ts TWS variable-speed model series 

heat pump in the cooling mode at 8 

.ingle compressor speed on April1S, 

1987. 57 FR 11855. (Hereafter referred to 

as the April Decision end Order.) Trane 

requests allowance to use DOE's 

proposed variable-speed test procedure. 

51 FR 35736, October 7, 1986. including 

parts of Appendix B of the Air 

Conditioning and Refrigeration Institute 

(ARl) Standard 210/240-84 with certain 

modifications to determine the unir. 

HSPF. Trane's petition requests that 

steady-state test points be at maximum, 

minimum. and "nominal capacity" 

speeds In order to accurately reflect the 

system's HSPF rating. One of the 

changes requested by Trane is that the 

frost/ defrost test run for HSPF. be run at 

the intermediate speed specified in the 

April Decision and Order for the cooling 

test with a tolerance of ± 6-percent. 

Trane further requests to use DOE's 

proposed procedure for cyclic testing 

with both capacity and fan power 

integrated to the time determined by the 

units automatic controls. Trane also 

requests to use theARI Standard 2101 

240-84 method of determining the 

heating part load factor instead of the 

DOE proposed procedure. . 

Trane identified its TWS variablespeed modeheries heat pump as using 

variable-speed motors to drive the 

compressor. indoor blower, and outdoor 

fan. The compressor is controlled over a 

wide range of speeds. Modulation of all 

three motors allows the system to meet 

specific building load requirements. The . 

. system operates at variable-speed using 

a microprocessor in conjunction with a 

special thennostat. It was established in 

previous waiver evaluations concerning 

variabIe-speed heat pumps that the 

existing test and calculation method of 

Appendix M to Supart B of 10 CFR Part 

430 were inappropriate. The waiver 

granted to Carrier specified a test 

procedure that was based on Appendix 

B of ARl Standard 210/240-84. (Case 
CAS-RM-79-102 COMMENT 11

3 

• There are.ix regiOilS for HSPF; Altland other 

IDduItr:1 ~tivea have agreed tI:mt Region 1V 

it lepi_ltatl,e .8Y1!!111lJe lJI88I!. 'HAECA 

. .-.,1iIhec1 tne1s for 1:IelItm air t:OIII!IItio!lenl haBed • ....,.1\'. 

the procedure nqum.ta bJ the Trane ·O'.f_.·-"' ...... ~ .... • It .............. "_d ... The raodI&oaticma ...... ted br T .... cOl'IDeroed .. t;0PIpI -.or ..... time: alae 

degradetiOD c:o.rtitient c.: and ... .. term ...... epeed_l. 

Bued on the Information ",,¥Yed b>' 

'the petitioner. NBS tepOrt end OOE'a 

internal renew, DOE ts.gran'ttnsTnme"s 

request tor the DIe of AppeDdbt B of ARI 

Standard 210}240-84 for determinillJ tbe 

he8Uq "asonal performance factor of 

variable-apeed ceDtral.air ooDdilioDers 

and beat pum,pa (heati"8 mode) with lIbe • modifications diacuaaed above. 

Jot ill. therefore. onieN4 tMt:: 

(1.1 The ~tiaa .. Waiftr" Bled bJ 

The Trmu! QapaaJ (CA.C-003). 

hereby granted a8 set fol'dt iD paragraph 

(2J below. aubjed te ""' JII"O'fhioRS of 

pe~raphs {8). ttl and fS). 

tZ} Notwi1.hstanding any wntmry 

provisions of Appendix M efl0CFR 

Part '30 Subpart B, the Trane Company 

sball be permit1ed to test ils TWS 

variable-speed model aIr conditioners 

and heat pum,ps on the basis specified in 

10 eFR Part 430. wlth the modifications 

.eel forth below; 

fi) Test Procedure 

The test prooedures .haD be as 

specified ill MlI:OOn 5.0 of AJU Standan:l 

210/~.ad ill eectioo8.0 of ANSI/ 

ASHRAE Standard 11&-1983. witS 4fte 

iDcIusionof dae io&w.ing canditions: 

Heating qdic testa IlhaU be 

cORducted by c,diRg the compressor 

"on" for 12 minutetl el'td "off" for 48 

minutes. "1be method of test aIIaU be the 

d!mtper method.1'fMm is tie&cnDed iR 

Appendix M to &atbpart B 1)~1O UFR Part 

430. 

The indoor air moving eqnipment 

sball cycle "off" as governed by any 

automatic cootrols ncinna11y installed 

with the unit. BQtb Del capacity and 

power .&hall be integrated. This applies 

to units haviJl,g ail indoor fan tUne delay. 

Uails not.uppUed with an indoor fan 

time delay shaD have the indoor air 

DIOVing equ.ipme.iU cycle "DO" aDd "ofr' as the cOmpre88Ol' cycles "0." eod "off." 

In lieu of CODductiQ8 heating cyclic 

tests. aD IlJIsigDed value of o.zs allan be 

... ~ fur fia ....... tion COII!Ikbm' fCsJ· 

(ii) Tnt Procedwea: lnlCtJ'lRed1.'e 1Speed 

The fro81 accumulation le81 shall be 

conducted at the temperature condition. 

tn Appendix B of ARt Standard m/IN)-

84 . 

n.e 1IRi t 8ball De opeIalIId at • 

constant. tntennediate campraaaor 

,peed (K-Vn). The intennediate 

compressor speed shall be within 5 

percent of the Irll _diateapeed 

measured during the i ....... ee.peed 

test in the cooling mode. 

(iii) Heating Se8sooal Performance 

. Factor 

'l1te beating ~1 perfonnance 

factor {HSPP') .Wl be exp!'8ll8ed in Btu 

per watt-hour. P ... ck 4If!he ax 

regiGM specifiedinTab1e4oftbis 

waiver. a separate HSPF shall be 

determined .. !be standardized 

maximum DHR. a.e standardir.ed 

Iftiftim~m DHR and for eU etlter 

standardized {)HR's in Appendix M 

betWeeD .the maxinDn and minimum 

vahIes. 

HSPF ehall be defined as the bealing 

seuoaal perfonnanoe factur 85 

8JIII!Icified in L2 of Appendill B of ARI 

Standard 210/240-14 mUltiplied bJ 3.413 

Btu/hr in w.hich tbe number of houl'S in 

the J. (emperattlfe bin (nj) is defmed in 

Table 2 of thi5 waiver and ~g which the 

part-load tactortpLF) in ~.equatiOD for 

power input {E{t.ll is dermed in lIecoon 

2.2 of Appendix B of ARl Standard 210/ 

240-84. 

The HSPF shan be determined by the 

method for two speed or two 

compressor Wlils, 8S specified in ANSI/ 

ASHRAE Stan4ar.d 116-11J33 and ARl 

Standard 210/240-84. and in accordance 

with the following changes. The DHR 

sball be determined by beating capacity 

at 70-47/43. nominal compressor speed, 

using Table 6.2.t1 in ARt Standard 24<Hll 

as defined in ARI Standards !10J24G-84 

Appendix A. "Nominaf' 8haU be defined 

as the lesser of the heating capacity at 

the maximum compl'eS$Of 5peed allowed 

by the controls in the cooling mode or 

the maximum tIpeed alkmed by the 

controls in the beating mode. 

The capacity for 1be unit BtOdutating 

8t the mlermemare eompreasof,;peed 

(k=v) at any temperature {tl]!5 

determined by: 
CAS-RM-79-102 COMMENT 11

- FecienI Rqister I Vol. S2, No. 1M I Wedne.qay, September 23. 1981 '-Noticet 

qk=V(tj) = qk=v (35) +-Mq (tj - 35) 

where: qkl:v(3S) = the capacity of the unit at 350 F determined 

at the intermediate compressor speed (k-v) in 

the frost accumulation test 

.'" . M I: slope of the capacity curve for the intermediate - - q compressor speed- (k-v) 

M = q 

ka1 

oss (62) 

62 

k=l - 0 (47) 55 * (1 

47 

k=2 055 (47 ) k=2 - 055 ( 17) 

N = q 

k=v 

oss 

Ok=2 

55 

Once the equation for q"="(tj ) has 

been detennined. the temperature where 

q"="(tj ) = BL{tj ) can be found. This 

temperature is designated as tvH• A 

47 17 

(35) _ Ok=1 

ss (35) 

(35) _ Ok:l 

55 (35) 

separate tYH shall be detennined tor 

each design heating requirement. 

The electrical power for the unit 

- N ) q 

operating at the Intennediate 

compressor speed (k=v) and at the 

temperature (tyH) is detennined by: 
CAS-RM-79-102 COMMENT 11

where: E~;V (35) a the electrical power input of the unit 

at 35 0 , determined at the intermediate 

cOIIlpressor speed (kav) in .the frost 

accumulation test 

ME • 

ME • slope of the electrical power input curve for 

the intermediate compressor speed (kav) 

E

k

-

l ('62) - Ek- l (47) ss ss • 

62 - 47 

EkC:2 (47) - E~;2 + NE 

ss 

47 - 17 

E~;V (35) - E~;1 (35) 

E~;2 (35) - E~;1 (35) 

(1 - NE) 

(17) 

The following section replaces Case II in section 2.2 of ARl 

Standard 210/240-84. 

Case II. When the compressor speed (k=2) and minimum speed (k=l) such temperature tj evaluate the following 

varies betwe~ the maximum speed that k=v to satisfy the building load at equations: 

8IWNG CODE l45CH)l-M 
CAS-RM-79-102 COMMENT 11

- ... 

where: 

. FeclwatRql.ler I Vol. 52.. No. -184/ Wednesday. September 23. 1987 I Notice. 85781 

., , 

steady-state capacity delivered by the 

unit at any speed between the minimum and 

maximum compressor speeds at temperature tj 

c the electrical power input required by the 

unit at temperature t· and at a variable 

.compressor speed betw~en the minimum and 

maximum compressor speeds 

a the electrical power input required by the 

unit at temperature tVH and at the 

intermediate compressor speed (kav) , as 

determined above 

the electrical power input required by the 

unit at temperature t] and at the 

minimum compressor speed 

. t] a temperature at which 

! when: tj (tvH . 

k=i qss (tj) c BL(tj) 

- where: k=2 . Ess (t4) • the electrical power input required by·the unit at temperature t4- and at the maximum comp'r~!lfsot' speed . . . .' - . 

tot • temperature. at whicb q~:2."·(tj) .. BL(tj) 

IIIU.IN8 CODII ~ 
CAS-RM-79-102 COMMENT 11

(i.) Demand Defrost Credit 

For alr·eource unite that are equipped 

with "demand defrost controlafatema". 

Ibe value for HSPF. aa determined 

above eball be multiplied by .. , .. . 

enhancement factor. 1'.,'10 ....... .. for improved perfOl'lNUlOe •• t _elUted 

In the Froat Accumulation TelL "111. 

factor. F .... dependa on the number of 

APPWhere: 

CUi == cooling load hours for region. 

in Table 4 Q.. (95) == eteady·etate 

capacity a8 measured in Test A 

HLH == beating toad bourl for a region as in Table 4 . 

DHR == standardized design heating 

requirement 

detroIt cYCIet in • ll-bour period (n) 

and ehalf be calculated u follows: 

F.., - 1.03 + 0.03 (90-I)/B3O for 1>90 

minutes 

F.., - 1.03 for 1<90 minutes 

..mtm! t - .~.riRe defrGe' 

eccumuIatiallpedod III adl'lutea. 

(v1 A.IaDaa1 Performuoe Pactor 

The annual performance factor [APF) 

.hall be expressed in Btu per watt-hour. 

II."" Mo'tIce. 

For eacb of the six rellons. in Tabl. 2 •• 

.apaJ"llte ~F ehen be determined for 

lhe slabdardized maximum DHR. the 

standardized minimum DHR and for ell 

other standardized DHR'. (See Table 

•. 2.8 In Appendix N to Subpart 8 of 10 

CFR Part 430) between the maximum 

and minimum valuea. APF ehall be 

defined 8.: 

[etH * 088(95)J + [HLH * DHR * Cl 

CLH * 0ss(95) + 

SEER 

HLH * DHR * C 

HSPF 

C == adjustment factor which serves to adjust the calculated design . 

heating load hours experienced by a 

heating system and is 0.77 

SEER = 8easonal energy effiCiency 

ratio as determined by 4.1 of 

AppeOOix M1 in DOE proposed test 

procedure, 51 FR 35736. October 7. 

1986. 

HSPF = heating seasonal 

performance factor as determined 

by 4.2 of Appendix M1, DOE 

proposed test procedure, 51 FR 

35736, October 7. 1986. 

TABLE 2.-0lSTRIBUTION OF TEMPERATURE BIN HOURS FOR HEATING 

RIP'&- T8IIIp8I'1II\n 8m hours lot' eaCh region ......... Bin No. (j) bin tempera. II III IV V lure (Tj) 

1 ...... _ .............. _ .......................................... _ ...... _._ ... - ... - ...................................................... _ .... _. __ .... __ .. ______ . __ ..... . 62 218 268 268 297 291 

2 ....... ____ .. _ ........... _ ... _ ...................... _ .. __ .. · .. ·_ ...... _ .............................................. __ .... _ ......................................................................... . 57 179 236 248 250 253 

3 .... ____ ..... _._ ..... _ ..................... _ .. _ ........................................... _ ..................................................................... uo .............................. uo ......... .. 52 145 204 241 232 236 ......... _ ...... _ .. _ .......... _ .... _ ........... uo ......... _ ... _ ..... _ .... _ ... _ ................................. _ ................................................................................................. . .. 7 97 179 240 209 209 5 .. _. _____ . ___ .. __ .. ____ ... _._ ....... _ .............. _ .......... _ ...................... _ ................................................................. . ..2 61 140 236 225 214 II . .._ ....... ___ .. __ ._ .. _ ..... __ .. __ . _____ ... ___ . __ . __ .... _._ ....... __ .. _ ...... . 37 81 110 206 245 239 7 ... _ .. __ .... __ ._ ... _ ....... __ . ___ . ___ ... __ ._ ........ _ ... __ .. __ ._ ............... ·_ ...... _ .... uo .... _. __ ._ .. • ••••• 3l 14 lD 161 283 280 

a.. . __ ............... :: .. _ ..... _ .. _ ....... _ .... : ......................... _ ............... _ ......... _ ...... _ .... _ .......... _ ...... _._ ...... _ .. _ ...... _ ...... . 27 4 30 82 196 258 

IL ...... _._ ... _. __ ........ _ ............................ _· ...... ··_· ............ · ........... - ..... ___ ..... _ .. ____ . _____ .... _ .... _._._. __ .... . 22 1 10 37 124 204 

10 ._. ___ ._ .. _ .......................... ____ .. _ .. _ ........................................ -.-.... _ ............................ _ ........................................................ . 17 0 3 16 81 151 11 . ___ . ___ ... ___ ._ .......... _. __ .... _ .. _ ................................... __ .. _ .. _ ........ _ ....................................................................... .. 12 0 0 9 58 129 

12._. _____ ._._._ ....... _ .. _· ___ .. _._ ....... · .. _ .. _ ... _ .. _. __ ......................... _ ......................................... .. 7 0 0 .. 29 105 

13 _______ . ___ ....... ·• • .... _ .......... _ .• _-.......... __ ... - ....... _ .... _ .... _ ... _ ... __ .. _ It 0 0 2 14 80 14. • ... _ ............. __ ... _. ___ ............................. _._ ................................................................................. _ ............. . -3 0 0 0 5 50 15 .... _ .. _____ ...... _ ....................... __ ... ___ ..... - .......... - ............................... _ .............. _ .......................... uo ..................................... _ .. .. -8 0 0 0 2 2B 

16 ... _ ............................. _ ............................ ___ ... _ .............................................................. - ................................................................................ .. -13 0 '0 0 0 14 17 . __ ......... _ .......... _ ... : .. _ ....... _ .. _ .... _. ___ ......... _ ...................................................... _ .................................. uo ......................... : .................. . -18 0 () () 0 6 18 ____ ._._ .............. _____ ... _._ .. ~ ................................. _ .... _ .... - ......... _ ......................................................................... . -23 0 0 0 0 3 

TABLE ".-ReGIONAl COoUNG LOAD HouRS 

(ClH) HEATING LOAD HOURS (HLH). OUT· 

DOOR DESIGN TEMPERATURE (TOO> AND. 

MEAN GROUND-WATER TEMPERATURE (T w) 

until the Department of Energy 

prescribes final test procedures 

appropriate to variable-speed central air 

conditioners and heat pwnps. 

granted Trane on April 24, 1987.51 FR 

17798, May 12, 1987. (Case No. CAC00(1). 

Region ClH HLH 

I 2400 750 

Too 

37 

T. 

72 

(fIR Doc. 87-21952 Filed 9-22-a7; 8:45 am) 

BILLING CODE 1450-01 .... 

VI 

311 

566 

591 

561 

388 

209 

94 

22 

8 

0 

0 

0 

0 

0 

0 

0 

·0 

0 

11.._ .. ___ ._ 1800 1250 IU ._ ..... __ ..... _ ...... _ •• _ 1200 1750 IV ____ ._ .. 11)0 2250 

V. 400 2750 VI ___ . __ .. _ ~ f'I'5O 

27 

17 

6 

-10 

'3D 

116 

82 

53 

.5 

55 

{4) This waiver is based upon the 

presumed validity of statements. 

allegations. and documentary materials 

submitted by the applicants and 

commenters. These waivers may be 

revoked or modifted at any time upon a 

determination that the factual basis 

underlying the application is incorrect. 

Economic Regulatory Administration 

Proposed Consent Order wtth Carlson 

Companies, Inc. and Ferrell 

Companies, Inc. 

(3) The waivers shall remain in effect 

from the date of issuance of this Order 

.... -

(5) Effective October 23. 1987. this 

waiver supersedes theJnteriin Waiver 

AGENCY: Economic Regulatory .. 

Administration, Department of Energy.