Energy Conservation Program for Consumer Products: Granting of the Application for Interim Waiver and Publishing of the Petition for Waiver of the Trane Company From the DOE Furnace Test Procedure

Federal RegisterOct 13, 1995

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DEPARTMENT OF ENERGY

Office of Energy Efficiency and Renewable Energy

[Case No. F-080]

Energy Conservation Program for Consumer Products: Granting of

the Application for Interim Waiver and Publishing of the Petition for

Waiver of the Trane Company From the DOE Furnace Test Procedure

AGENCY: Office of Energy Efficiency and Renewable Energy, Department of

Energy.

ACTION: Notice.

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SUMMARY: Today's notice publishes a letter granting an Interim Waiver

to The Trane Company (Trane) from the existing Department of Energy

(DOE or Department) test procedure regarding blower time delay for the

company's TUD-C/AUD-C, TDD-C/ADD-C, TUD-R/AUD-R, TDD-R/ADD-R, TUD-R-V/

AUD-R-V, TDD-R-V/ADD-R-V, TUY-R-V/AUY-R-V, and TDY-R-V/ADY-R-V central

furnaces.

Today's notice also publishes a ``Petition for Waiver'' from Trane.

Trane's Petition for Waiver requests DOE to grant relief from the DOE

furnace test procedure relating to the blower time delay specification.

Trane seeks to test using a blower delay time of 45 seconds for its

TUD-C/AUD-C, TDD-C/ADD-C, TUD-R/AUD-R, TDD-R-ADD-R, TUD-R-V/AUD-R-V,

TDD-R-V/ADD-R-V, TUY-R-V/AUY-R-V, and TDY-R-V/ADY-R-V central furnaces

instead of the specified 1.5-minute delay between burner on-time and

blower on-time. The Department is soliciting comments, data, and

information respecting the Petition for Waiver.

DATES: DOE will accept comments, data, and information not later than

November 13, 1995.

[[Page 53355]]

ADDRESSES: Written comments and statements shall be sent to: Department

of Energy, Office of Energy Efficiency and Renewable Energy, Case No.

F-080, Mail Stop EE-43, Room 1J-108, Forrestal Building, 1000

Independence Avenue, SW., Washington, DC 20585, (202) 586-7140.

FOR FURTHER INFORMATION CONTACT: Cyrus H. Nasseri, U.S. Department of

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

EE-431, Forrestal Building, 1000 Independence Avenue, SW., Washington,

DC 20585, (202) 586-9138; Eugene Margolis, Esq., U.S. Department of

Energy, Office of General Counsel, Mail Station GC-72, Forrestal

Building, 1000 Independence Avenue, SW., Washington, DC 20585, (202)

586-9507.

SUPPLEMENTARY INFORMATION: The Energy Conservation Program for Consumer

Products (other than automobiles) was established pursuant to the

Energy Policy and Conservation Act (EPCA), Public Law 94-163, 89 Stat.

917, as amended by the National Energy Conservation Policy Act (NECPA),

Public Law 95-619, 92 Stat. 3266, the National Appliance Energy

Conservation Act of 1987 (NAECA), Public Law 100-12, the National

Appliance Energy Conservation Amendments of 1988 (NAECA 1988), Public

Law 100-357, and the Energy Policy Act of 1992 (EPAct), Public Law 102-

486, 106 Stat. 2776, which requires DOE to prescribe standardized test

procedures to measure the energy consumption of certain consumer

products, including furnaces. The intent of the test procedures is to

provide a comparable measure of energy consumption that will assist

consumers in making purchasing decisions. These test procedures appear

at 10 CFR Part 430, Subpart B.

The Department amended the prescribed test procedures by adding 10

CFR 430.27 on September 26, 1980, creating the waiver process. 45 FR

64108. Thereafter, DOE further amended the appliance test procedure

waiver process to allow the Assistant Secretary for Energy Efficiency

and Renewable Energy (Assistant Secretary) to grant an Interim Waiver

from test procedure requirements to manufacturers that have petitioned

DOE for a waiver of such prescribed test procedures. 51 FR 42823,

November 26, 1986.

The waiver process allows the Assistant Secretary 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 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 as to provide materially inaccurate comparative data.

Waivers generally remain in effect until final test procedure

amendments become effective, resolving the problem that is the subject

of the waiver.

The Interim Waiver provisions added by the 1986 amendment allow the

Assistant Secretary to grant an Interim Waiver when it is determined

that the applicant will experience economic hardship if the Application

for Interim Waiver is denied, if it appears likely that the Petition

for Waiver will be granted, and/or the Assistant Secretary determines

that it would be desirable for public policy reasons to grant immediate

relief pending a determination on the Petition for Waiver. An Interim

Waiver remains in effect for a period of 180 days or until DOE issues

its determination on the Petition for Waiver, whichever is sooner, and

may be extended for an additional 180 days, if necessary.

On August 11, 1995, Trane filed an Application for Interim Waiver

and a Petition for Waiver regarding blower time delay. Trane's

Application seeks an Interim Waiver from the DOE test provisions that

require a 1.5-minute time delay between the ignition of the burner and

starting of the circulating air blower. Instead, Trane requests the

allowance to test using a 45-second blower time delay when testing its

TUD-3C/AUD-C, TDD-C/ADD-C, TUD-R/AUD-R, TDD-R/ADD-R, TUD-R-V/AUD-R-V,

TDD-R-V/ADD-R-V, TUY-R-V/AUY-R-V, and TDY R-V/ADY-R-V central furnaces.

Trane states that the 45-second delay is indicative of how these

furnaces actually operate. Such a delay results in an overall furnace

AFUE of approximately 1.0 percent point improvement. Since current DOE

test procedures do not address this variable blower time delay, Trane

asks that the Interim Waiver be granted.

The Department has published a Notice of Proposed Rulemaking on

August 23, 1993, (58 FR 44583) to amend the furnace test procedure,

which addresses the above issue.

Previous waivers for this type of time blower delay control have

been granted by DOE to Coleman Company, 50 FR 2710, January 18, 1985;

Magic Chef Company, 50 FR 41553, October 11, 1985; Rheem Manufacturing

Company, 53 FR 48574, December 1, 1988, 56 FR 2920, January 25, 1991,

57 FR 10166, March 24, 1992, 57 FR 34560, August 5, 1992; 59 FR 30577,

June 14, 1994, and 59 FR 55470, November 7, 1994; Trane Company, 54 FR

19226, May 4, 1989, 56 FR 6021, February 14, 1991, 57 FR 10167, March

24, 1992, 57 FR 22222, May 27, 1992, and 58 FR 68138, December 23,

1993; Lennox Industries, 55 FR 50224, December 5, 1990, 57 FR 49700,

November 3, 1992, 58 FR 68136, December 23, 1993, and 58 FR 68137,

December 23, 1993; Inter-City Products Corporation, 55 FR 51487,

December 14, 1990, and 56 FR 63945, December 6, 1991; DMO Industries,

56 FR 4622, February 5, 1991, and 59 FR 30579, June 14, 1994; Heil-

Quaker Corporation, 56 FR 6019, February 14, 1991; Carrier Corporation,

56 FR 6018, February 14, 1991, 57 FR 38830, August 27, 1992, 58 FR

68131, December 23, 1993, 58 FR 68133, December 23, 1993 and 59 FR

14394, March 28, 1994; Amana Refrigeration Inc., 56 FR 27958, June 18,

1991, 56 FR 63940, December 6, 1991, 57 FR 23392, June 3, 1992, and 58

FR 68130, December 23, 1993; Snyder General Corporation, 56 FR 54960,

September 9, 1991; Goodman Manufacturing Corporation, 56 FR 51713,

October 15, 1991, 57 FR 27970, June 23, 1992 and 59 FR 12586, March 17,

1994; The Ducane Company Inc., 56 FR 63943, December 6, 1991, 57 FR

10163, March 24, 1992, and 58 FR 68134, December 23, 1993; Armstrong

Air Conditioning, Inc., 57 FR 899, January 9, 1992, 57 FR 10160, March

24, 1992, 57 FR 10161, March 24, 1992, 57 FR 39193, August 28, 1992, 57

FR 54230, November 17, 1992, and 59 FR 30575, June 14, 1994; Thermo

Products, Inc., 57 FR 903, January 9, 1992; Consolidated Industries

Corporation, 57 FR 22220, May 27, 1992; Evcon Industries, Inc., 57 FR

47847, October 20, 1992, and 59 FR 46968, September 13, 1994; Bard

Manufacturing Company, 57 FR 53733, November 12, 1992, and 59 FR 30578,

June 14, 1994; and York International Corporation, 59 FR 46969,

September 13, 1994, and 60 FR 100, January 3, 1995. Thus, it appears

likely that the Petition for Waiver will be granted for blower time

delay.

In those instances where the likely success of the Petition for

Waiver has been demonstrated based upon DOE having granted a waiver for

a similar product design, it is in the public interest to have similar

products tested and rated for energy consumption on a comparable basis.

Therefore, based on the above, DOE is granting Trane an Interim

Waiver for its TUD-C/AUD-C, TDD-C/ADD-C, TUD-R/AUD-R, TDD-R/ADD-R, TUD-

R-V/AUD-R-V, TDD-R-V/ADD-R-V, TUY-R-V/AUY-R-V, TDY-R-V/ADY-R-V, and

TDY-R-V/ADY-R-V central furnaces. Pursuant to paragraph (e) of

[[Page 53356]]

Section 430.27 of the Code of Federal Regulations Part 430, the

following letter granting the Application for Interim Waiver to Trane

was issued.

Trane's Petition for Waiver requested DOE to grant relief from the

DOE furnace test procedure relating to the blower time delay

specification. Trane seeks to test using a blower delay time of 45

seconds for its TUD-C/AUD-C, TDD-C/ADD-C, TUD-R/AUD-R, TDD-R/ADD-R,

TUD-R-V/AUD-R-V, TDD-R-V/ADD-R-V, TUY-R-V/AUY-R-V, TDY-R-V/ADY-R-V, and

TDY-R-V/ADY-R-V central furnaces instead of the specified 1.5-minute

delay between burner on-time and blower on-time. Pursuant to paragraph

(b) of 10 CFR Part 430.27, DOE is hereby publishing the ``Petition for

Waiver'' in its entirety. The petition contains no confidential

information. The Department solicits comments, data, and information

respecting the petition.

Issued in Washington, DC, September 28, 1995.

Christine A. Ervin,

Assistant Secretary, Energy Efficiency and Renewable Energy.

Department of Energy,

Washington, DC,

September 28, 1995.

Mr. Hongsik Ahn,

Sr. Principal Engineer, The Trane Company, Trenton, NJ 08619.

Dear Mr. Ahn: This is in response to your August 11, 1995,

Application for Interim Waiver and Petition for Waiver from the

Department of Energy (DOE or Department) test procedure regarding

blower time delay for The Trane Company (Trane) TUD-C/AUD-C, TDD-C/

ADD-C, TUD-R/AUD-R, TDD-R/ADD-R, TUD-R-V/AUD-R-V, TDD-R-V/ADD-R-V,

TUY-R-V/AUY-R-V, and TDY-R-V/ADY-R-V central furnaces.

Previous waivers for this type of timed blower delay control

have been granted by DOE to Coleman Company, 50 FR 2710, January 18,

1985; Magic Chef Company, 50 FR 41553, October 11, 1985; Rheem

Manufacturing Company, 53 FR 48574, December 1, 1988, 56 FR 2920,

January 25, 1991, 57 FR 10166, March 24, 1992, 57 FR 34560, August

5, 1992, 59 FR 30577, June 14, 1994, and 59 FR 55470, November 7,

1994; Trane Company, 54 FR 19226, May 4, 1989, 56 FR 6021, February

14, 1991, 57 FR 10167, March 24, 1992, 57 FR 22222, May 27, 1992,

and 58 FR 68138, December 23, 1993; Lennox Industries, 55 FR 50224,

December 5, 1990, 57 FR 49700, November 3, 1992, 58 FR 68136,

December 23, 1993, and 58 FR 68137, December 23, 1993; Inter-City

Products Corporation, 55 FR 51487, December 14, 1990, and 56 FR

63945, December 6, 1991; DMO Industries, 56 FR 4622, February 5,

1991, and 59 FR 30579, June 14, 1994; Heil-Quaker Corporation, 56 FR

6019, February 14, 1991; Carrier Corporation, 56 FR 6018, February

14, 1991, 57 FR 38830, August 27, 1992, 58 FR 68131, December 23,

1993, 58 FR 68133, December 23, 1993 and 59 FR 14394, March 28,

1994; Amana Refrigeration Inc., 56 FR 27958, June 18, 1991, 56 FR

63940, December 6, 1991, 57 FR 23392, June 3, 1992, and 58 FR 68130,

December 23, 1993; Snyder General Corporation, 56 FR 54960,

September 9, 1991; Goodman Manufacturing Corporation, 56 FR 51713,

October 15, 1991, 57 FR 27970, June 23, 1992 and 59 FR 12586, March

17, 1994; The Ducane Company Inc., 56 FR 63943, December 6, 1991, 57

FR 10163, March 24, 1992, and 58 FR 68134, December 23, 1993;

Armstrong Air Conditioning, Inc., 57 FR 899, January 9, 1992, 57 FR

10160, March 24, 1992, 57 FR 10161, March 24, 1992, 57 FR 39193,

August 28, 1992, 57 FR 54230, November 17, 1992, and 59 FR 30575,

June 14, 1994; Thermo Products, Inc., 57 FR 903, January 9, 1992;

Consolidated Industries Corporation, 57 FR 22220, May 27, 1992;

Evcon Industries, Inc., 57 FR 47847, October 20, 1992, and 59 FR

46968, September 13, 1994; Bard Manufacturing Company, 57 FR 53733,

November 12, 1992, and 59 FR 30578, June 14, 1994; and York

International Corporation, 59 FR 46969, September 13, 1994, and 60

FR 100, January 3, 1995. Thus, it appears likely that the Petition

for Waiver will be granted for blower time delay.

Trane's Application for Interim Waiver does not provide

sufficient information to evaluate what, if any, economic impact or

competitive disadvantage Trane will likely experience absent a

favorable determination on its application.

However, in those instances where the likely success of the

Petition for Waiver has been demonstrated, based upon DOE having

granted a waiver for a similar product design, it is in the public

interest to have similar products tested and rated for energy

consumption on a comparable basis.

Therefore, Trane's Application for an Interim Waiver from the

DOE test procedure for its TUD-C/AUD-C, TDD-C/ADD-C, TUD-R/AUD-R,

TDD-R/ADD-R, TUD-R-V/AUD-R-V, TDD-R-V/ADD-R-V, TUY-R-V/AUY-R-V, and

TDY-R-V/ADY-R-V central furnaces regarding blower time delay is

granted.

Trane shall be permitted to test its TUD-C/AUD-C, TDD-C/ADD-C,

TUD-R/AUD-R, TDD-R/ADD-R, TUD-R-V/AUD-R-V, TDD-R-V/ADD-R-V, TUY-R-V/

AUY-R-V, and TDY-R-V/ADY-R-V central furnaces on the basis of the

test procedures specified in 10 CFR Part 430, Subpart B, Appendix N,

with the modification set forth below:

(i) Section 3.0 in Appendix N is deleted and replaced with the

following paragraph:

3.0 Test Procedure. Testing and measurements shall be as

specified in Section 9 in ANSI/ASHRAE 103-82 with the exception of

Sections 9.2.2, 9.3.1, and 9.3.2, and the inclusion of the following

additional procedures:

(ii) Add a new paragraph 3.10 in Appendix N as follows:

3.10 Gas- and Oil-Fueled Central Furnaces. After equilibrium

conditions are achieved following the cool-down test and the

required measurements performed, turn on the furnace and measure the

flue gas temperature, using the thermocouple grid described above,

at 0.5 and 2.5 minutes after the main burner(s) comes on. After the

burner start-up, delay the blower start-up by 1.5 minutes (t-)

unless: (1) the furnace employs a single motor to drive the power

burner and the indoor air circulation blower, in which case the

burner and blower shall be started together; or (2) the furnace is

designed to operate using an unvarying delay time that is other than

1.5 minutes, in which case the fan control shall be permitted to

start the blower; or (3) the delay time results in the activation of

a temperature safety device which shuts off the burner, in which

case the fan control shall be permitted to start the blower. In the

latter case, if the fan control is adjustable, set it to start the

blower at the highest temperature. If the fan control is permitted

to start the blower, measure time delay (t-) using a stop watch.

Record the measured temperatures. During the heat-up test for oil-

fueled furnaces, maintain the draft in the flue pipe within

0.01 inch of water column of the manufacturer's

recommended on-period draft.

This Interim Waiver is based upon the presumed validity of

statements and all allegations submitted by the company. This

Interim Waiver may be removed or modified at any time upon a

determination that the factual basis underlying the application is

incorrect.

The Interim Waiver shall remain in effect for a period of 180

days or until DOE acts on the Petition for Waiver, whichever is

sooner, and may be extended for an additional 180-day period, if

necessary.

The Department is publishing in the Federal Register the

Petition for Waiver in its entirely. The Petition contains no

confidential information. The Department is soliciting comments,

data, and information respecting the Petition.

Sincerely,

Christine A. Ervin,

Assistant Secretary, Energy Efficiency and Renewable Energy.

August 11, 1995.

Hon. Christine Ervin,

Assistant Secretary, Energy Efficiency and Renewable Energy of DOE,

1000 Independence Ave., S.W., Washington, DC 20585.

Dear Hon. Ervin: This is to submit an Application for Interim

Waiver and Petition for Waiver from the Department of Energy (DOE)

test procedure, prescribed in 10 CFR Part 430, Subpart B, Appendix N

for furnace products. The Waiver is regarding blower on-time delay

on behalf of The Trane Co./American Standard Inc., in accordance

with Title 10 CFR, Part 430.27. In addition to the central heating

furnace series, to which you have granted a waiver to use 45 seconds

blower on-time delay in lieu of 1.5 minute, as specified in the test

procedures, we now have new furnace series which also require the

use of 45 seconds time delay instead of 1.5 minutes. They are: TUD-

C/AUD-C, TDD-C/ADD-C, TUD-R/AUD-R, TDD-R/ADD-R, TUD-R-V/AUD-R-V,

TDD-R-V/ADD-R-V, TUY-R-Y/AUY-R-V, and TDY-R-V/ADY-R-V.

The above furnaces are equipped with a fan on-time control with

a fixed time of 45 seconds. The current DOE test procedures do not

credit Trane/American Standard for additional energy savings that

are realized

[[Page 53357]]

when the shorter blower on-time 45 second is utilized. Test data for

each model series indicates an average of 1% AFUE increase when the

45 second on-time delay is used. Copies of confidential test data

supporting these energy savings will be forwarded to you upon

request.

Trane/American Standard Inc. is confident that this petition for

Waiver will be granted, and therefore, requests an Interim Waiver

until the forthcoming final rule.

To this data, there are numerous central forced air furnace

manufacturers to which similar waivers have been granted. Also the

proposed ASHRAE 103.93 test standards under consideration by DOE

covers the test requirement for fan on-time delay related to the

Petition for Waiver.

Manufacturers that domestically market similar products have

been sent a copy of the Petition and Application for Interim Waiver.

For your reference, attached is a copy of the letter from James

T. VerShaw, dated August 27, 1993, and the letter from Mr. Frank M.

Stewart, Jr., with which the previous application for an Interim

Waiver was granted.

Sincerely,

Hongsik Ahn,

Sr. Principal Engineer HA/nh Enclosures.

August 27, 1993.

Assistant Secretary, Conservation and Renewable Resources,

United States Department of Energy, 1000 Independence Ave. SW.,

Washington, D.C. 20585.

Gentlemen: This is a Petition for Waiver and Application for

Interim Waiver submitted pursuant to Title 10 CFR, part 430.27.

Waiver is requested from the furnace test procedure found in

appendix N to Subpart B of Part 430.

The current procedure requires a 1.5 minute delay between burner

and supply air blower startup. Trane is requesting the use of 45

seconds instead of 1.5 minutes when testing the following central

furnace families incorporating a timed fan control with a fixed time

of 45 seconds: TUC-C/AUC-A, TDC-C/ADC-C, TUX-C/AUX-C, TDX-C/ADX-C,

TUE-A, TDE-A, FUA-A, and FCA-A. The current procedure does not

credit Trane for additional energy savings that are realized when a

shorter blower on time is utilized. Test data for each model series

indicates an average of 1% AFUE increase when a 45 second timed on

delay is used. Copies of confidential test data confirming these

energy savings will be forwarded to you upon request.

Trane is confident that this petition for Waiver will be

granted, and therefore, requests an Interim Waiver until the final

ruling is made. Similar waivers have been granted to Evcon, Rheem

Manufacturing, Carrier, Inter-City Products, and Lennox Industries.

Also, the proposed ASHRAE 103-88 currently under consideration by

DOE contains the coverage requested in the Petition for Waiver.

Manufacturers that domestically market similar products have

been sent a copy of the Petition for Waiver and Application for

Interim Waiver.

Sincerely,

James T. VerShaw,

Manager, Design and Technology.

Department of Energy,

Washington, DC,

October 1, 1993.

Mr. James T. Ver Shaw,

Manager, Design and Technology, The Trane Company, 2231 East State

Street, Trenton, NJ 08619.

Dear Mr. Ver Shaw: This is in response to your August 27, 1993,

Application for Interim Waiver and Petition for Waiver from the

Department of Energy (DOE) test procedure regarding blower time

delay for The Trane Company (Trane) TUC-C/AUC-A, TDC-C/ADC-A, TUX-C/

AUX-C, TDX-C/ADX-C, TUE-A, TDE-A, FUA-A, and FCA-A central furnaces.

Previous waivers for this type of timed blower delay control

have been granted by DOE to Coleman Company, 50 FR 2710, January 18,

1985; Magic Chef Company, 50 FR 41553, October 11, 1985; Rheem

Manufacturing Company, 53 FR 48574, December 1, 1988, 56 FR 2920,

January 25, 1991, 57 FR 10166, March 24, 1992, and 57 FR 34560,

August 5, 1992; Trane Company, 54 FR 19226, May 4, 1989, 56 FR 6021,

February 14, 1991, 57 FR 10167, March 24, 1992, and 57 FR 22222, May

27, 1992; Lennox Industries, 55 FR 50224, December 5, 1990, and 57

FR 49700, November 3, 1992; Inter-City Products Corporation, 55 FR

51487, December 14, 1990, and 56 FR 63945, December 6, 1991; DMO

Industries, 56 FR 4622, February 5, 1991; Heil-Quaker Corporation,

56 FR 6019, February 14, 1991; Carrier Corporation, 56 FR 6018,

February 14, 1991, and 57 FR 38830, August 27, 1992; Amana

Refrigeration Inc., 56 FR 27958, June 18, 1991, 56 FR 63940,

December 6, 1991, and 57 FR 23392, June 3, 1992; Snyder General

Corporation, 56 FR 54960, September 9, 1991; Goodman Manufacturing

Corporation, 56 FR 51713, October 15, 1991, and 57 FR 27970, June

23, 1992; the Ducane Company Inc., 56 FR 63943, December 6, 1991,

and 57 FR 10163, March 24, 1992; Armstrong Air Conditioning, Inc.,

57 FR 899, January 9, 1992, 57 FR 10160, March 24, 1992, 57 FR

10161, March 24, 1992, 57 FR 39193, August 28, 1992, and 57 FR

54230, November 17, 1992; Thermo Products, Inc., 57 FR 903, January

9, 1992; Consolidated Industries Corporation, 57 FR 22220, May 27,

1992; Evcon Industries, Inc., 57 FR 47847, October 20, 1992; and

Bard Manufacturing Company, 57 FR 53733, November 12, 1992. Thus it

appears likely that the Petition for Waiver will be granted for

blower time delay.

Trane's Application for Interim Waiver does not provide

sufficient information to evaluate what, if any, economic impact or

competitive disadvantage Trane will likely experience absent a

favorable determination on its application. However, in those

instances where the likely success of the Petition for Waiver has

been demonstrated, based upon DOE having granted a waiver for a

similar product design, it is in the public interest to have similar

products tested and rated for energy consumption on a comparable

basis.

Therefore, Trane's Application for an Interim Waiver from the

DOE test procedure for its TUC-C/AUC-A, TDC-C/ADC-C, TUX-C/AUX-C,

TDX-C/ADX-C, TUE-A, TDE-A, FUA-A, and FCA-A central furnaces

regarding blower time delay is granted.

Trane shall be permitted to test its TUC-C/AUC-A, TDC-C/ADC-C,

TUX-C/AUX-C, TDX-C/ADX-C, TUE-A, FUA-A, and FCA-A central furnaces

on the basis of the test procedures specified in 10 CFR Part 430,

Subpart B, Appendix N, with the modification set forth below: