[Code of Federal Regulations]
[Title 10, Volume 3]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR430.24]
[Page 119-125]
TITLE 10--ENERGY
CHAPTER II--DEPARTMENT OF ENERGY
PART 430--ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS--Table of Contents
Subpart B--Test Procedures
Sec. 430.24 Units to be tested.
When testing of a covered product is required to comply with section
323(c) of the Act, or to comply with rules prescribed under sections 324
or 325 of the Act, a sample shall be selected and tested comprised of
units which are production units, or are representative of production
units of the basic model being tested, and shall meet the following
applicable criteria.
(a)(1) For each basic model \1\ of electric refrigerators and
electric refrigerator-freezers, a sample of sufficient size shall be
tested to insure that--
---------------------------------------------------------------------------
\1\ Components of similar design may be substituted without
requiring additional testing if the represented measures of energy
consumption continue to satisfy the applicable sampling provision.
---------------------------------------------------------------------------
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 95 percent
confidence limit of the true mean divided by 1.10, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumer would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 95 percent confidence limit of the true mean
divided by .90.
(b)(1) For each basic model \1\ of freezers, a sample of sufficient
size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower
[[Page 120]]
values shall be no less than the higher of (A) the mean of the sample or
(B) the upper 95 percent confidence limit of the true mean divided by
1.10, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 95 percent confidence limit of the true mean
divided by .90.
(c)(1) For each basic model \1\ of dishwashers, a sample of
sufficient size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 97\1/2\ percent confidence limit of the true
mean divided by .95.
(d)(1) For each basic model \1\ of clothes dryers a sample of
sufficient size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 97\1/2\ percent confidence limit of the true
mean divided by .95.
(e)(1) For each basic model \1\ of water heaters, a sample of
sufficient size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 95 percent
confidence limit of the true mean divided by 1.10, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 95 percent confidence limit of the true mean
divided by .90.
(f)(1) For each basic model \1\ of room air conditioners, a sample
of sufficient size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the energy efficiency ratio or other
measure of energy consumption of a basic model for which consumers would
favor higher values shall be no greater than the lower of (A) the mean
of the sample or (B) the lower 97\1/2\ percent confidence limit of the
true mean divided by .95.
(g)(1) For each basic model \1\ of unvented home heating equipment
(not including furnaces), a sample of sufficient size shall be tested to
insure that--
---------------------------------------------------------------------------
\1\ Components of similar design may be substituted without
requiring additional testing if the represented measures of energy
consumption continue to satisfy the applicable sampling provision.
---------------------------------------------------------------------------
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.075, and
(ii) Any represented value of the annual fuel utilization efficiency
or other measure of energy consumption of a basic model for which
consumers would favor higher values shall be not greater than the lower
of (A) the mean of the sample or (B) the lower 97\1/2\ percent
[[Page 121]]
confidence limit of the true mean divided by .925.
(h)(1) For each basic model \1\ of television sets, a sample of
sufficient size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 97\1/2\ percent confidence limit of the true
mean divided by .95.
(i)(1) Except as provided in paragraph (i)(2) of this section, for
each basic model \1\ of conventional cooking tops, conventional ovens
and microwave ovens a sample of sufficient size shall be tested to
insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 97\1/2\ percent confidence limit of the true
mean divided by .95.
(2) Basic models need not be tested which differ from other tested
basic models by only the design of oven doors the use of which leads to
improved efficiency and decreased energy consumption and estimated
annual operating cost. Any represented values of measures of energy
consumption for basic models not tested shall be the same as for the
tested basic model.
(j)(1) For each basic model \1\ of clothes washers, a sample of
sufficient size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the energy factor or other measure of
energy consumption of a basic model for which consumers would favor
higher values shall be no greater than the lower of (A) the mean of the
sample or (B) the lower 97\1/2\ percent confidence limit of the true
mean divided by .95.
(k)--(l) [Reserved]
(m)(1) For central air conditioners, each condensing unit shall have
a condenser-evaporator coil combination selected and a sample of
sufficient size tested in accordance with applicable provisions of this
subpart such that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of the condenser-
evaporator coil combination for which consumers would favor lower values
shall be no less than the higher of (A) the mean of the sample or (B)
the upper 90 percent confidence limit of the true mean divided by 1.05,
and
(ii) Any represented value of the energy efficiency or other measure
of energy consumption of the condenser-evaporator coil combination for
which consumers would favor higher values shall be no greater than the
lower of (A) the mean of the sample or (B) the lower 90 percent
confidence limit of the true mean divided by 0.95.
(2) The condenser-evaporator coil combination selected for tests
pursuant to paragraph (m)(1) of this section shall be that combination
manufactured by the condensing unit manufacturer likely to have the
largest volume of retail sales. Components of similar design may be
substituted without requiring additional testing if the represented
measures of energy consumption continue to satisfy the applicable
sampling provisions of paragraphs (m)(1)(i) and (m)(1)(ii) of this
section. For every other condenser-evaporator coil combination
manufactured by the same manufacturer or in part by a
[[Page 122]]
component manufacturer using that same condensing unit, either--
(i) A sample of sufficient size, comprised of production units or
representing production units, shall be tested to ensure that the
requirements of paragraphs (m)(1)(i) and (m)(1)(ii) of this section are
met for such other condenser-evaporator coil combinations; or
(ii) The representative values of the measures of energy consumption
shall be based on an alternative rating method that has been approved by
DOE in accordance with the provisions of paragraphs (m)(4) and (m)(5) of
this section.
(3) Whenever the representative values of the measures of energy
consumption, as determined by the provisions of paragraph (m)(2)(ii) of
this section, do not agree within five percent of the representative
values of the measures of energy consumption as determined by actual
testing, the representative values determined by actual testing shall be
used to comply with section 323(c) of the Act, or to comply with rules
prescribed under section 324 of the Act.
(4) The basis of the alternative rating method referred to in
paragraph (m)(2)(ii) of this section shall be a representation of the
test data and calculations of a mechanical vapor compression
refrigeration cycle. The major components in the refrigeration cycle
shall be modeled as ``fits'' to manufacturer performance data or by
graphic or tabular performance data. Heat transfer characteristics of
coils may be modeled as a function of face area, number of rows, fins
per inch, refrigerant circuitry, air flow rate and entering air
enthalpy. Additional performance-related characteristics to be
considered may include type of expansion device, refrigerant flow rate
through the expansion device, power of the indoor fan and degradation
coefficient.
(5) Manufacturers who elect to use an alternative rating method for
determining measures of energy consumption under paragraphs (m)(2)(ii)
and (m)(4) of this section must submit a request to DOE for reviewing
the alternative rating method to the Assistant Secretary of Conservation
and Renewable Energy, 1000 Independence Avenue, SW., Washington, DC
20585, and receive approval to use the alternative method by the
Assistant Secretary before the alternative method may be used for rating
central air conditioners.
(6) Each request to DOE for reviewing an alternative rating method
shall include:
(i) The name, address and telephone number of the official
representing the manufacturer.
(ii) Complete documentation of the alternative rating procedure,
including the computer code when a computer model is used.
(iii) Test data for two coils from two different coil families for
two different condensing units. The tested capacities for the matched
systems for the two condensing units shall differ by at least a factor
of two. Rating information for the mixed systems shall include the
ratings from testing, and from the alternative rating method.
(iv) Complete test data, product information, and related
information to allow DOE to verify the rating information submitted by
the manufacturer.
(7) Manufacturers that elect to use an alternative rating method for
determining measures of energy consumption under paragraphs (m)(2)(ii)
and (m)(4) of this section must either subject a sample of their units
to independent testing on a regular basis, e.g., voluntary certification
program, or have the representations reviewed and certified by an
independent state-registered professional engineer who is not an
employee of the manufacturer. The registered professional engineer is to
certify that the results of the alternative rating procedure accurately
represent the energy consumption of the unit(s). The manufacturer is to
keep the registered professional engineer's certifications on file for
review by DOE for as long as said combination is made available for sale
by the manufacturer. Any change to be made to the alternative rating
method, must be approved by DOE prior to its use for rating.
(8) Manufacturers who choose to use computer simulation or
engineering analysis for determining measures of energy consumption
under paragraphs (m)(2)(ii) and (m)(5) of this section
[[Page 123]]
shall permit representatives of the Department of Energy to inspect for
verification purposes the simulation method or methods used. This
inspection may include conducting simulations to predict the performance
of particular condenser-evaporator coil combinations specified by DOE,
analysis of previous simulations conducted by a manufacturer, or both.
(n)(1) For each basic model \1\ of furnaces, other than basic models
of those sectional cast-iron boilers which may be aggregated into groups
having identical intermediate sections and combustion chambers, a sample
of sufficient size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample, or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the annual fuel utilization efficiency
or other measure of energy consumption of a basic model for which
consumers would favor higher values shall be no greater than the lower
of (A) the mean of the sample, or (B) the lower 97\1/2\ percent
confidence limit of the true mean divided by .95.
(2) For the lowest capacity basic model \1\ of a group of basic
models of those sectional cast-iron boilers having identical
intermediate sections and combustion chambers, a sample of sufficient
size shall be tested to insure that--
---------------------------------------------------------------------------
\1\ Components of similar design may be substituted without
requiring additional testing if the represented measures of energy
consumption continue to satisfy the applicable sampling provision.
---------------------------------------------------------------------------
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample, or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the fuel utilization efficiency or
other measure of energy consumption of a basic model for which consumers
would favor higher values shall be no greater than the lower of (A) the
mean of the sample, or (B) the lower 97\1/2\ percent confidence limit of
the true mean divided by .95.
(3) For the highest capacity basic model \1\ of a group of basic
models of those sectional cast-iron boilers having identical
intermediate sections and combustion chambers, a sample of sufficient
size shall be tested to insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values be no less than the higher of
(A) the mean of the sample, or (B) the upper 97\1/2\ percent confidence
limit of the true mean divided by 1.05, and
(ii) Any represented value of the fuel utilization efficiency or
other measure of energy consumption of a basic model for which consumers
would favor higher values shall be no greater than the lower of (A) the
mean of the sample, or (B) the lower 97\1/2\ percent confidence limit of
the true mean divided by .05.
(4) For basic model \1\ or capacity other than the highest or lowest
of the group of basic models \1\ of sectional cast-iron boilers having
identical intermediate sections and combustion chambers, represented
values of measures of energy consumption shall be determined by either--
(i) A linear interpolation of data obtained for the smallest and
largest capacity units of the family, or
(ii) Testing a sample of sufficient size to insure that (A) any
represented value of estimated annual operating cost, energy consumption
or other measure of energy consumption of a basic model for which
consumers would favor lower values shall be no less than the higher of
(1) the mean of the sample, or (2) the upper 97\1/2\ percent confidence
limit of the true mean divided by 1.05, and (B) any represented value of
the energy factor or other measure of energy consumption of a basic
model for which consumers would favor higher values shall be no greater
than the lower of (1) the mean of the sample, or (2) the lower 97\1/2\
percent confidence limit of the true mean divided by .95.
[[Page 124]]
(5) Whenever measures of energy consumption determined by linear
interpolation do not agree with measures of energy consumption
determined by actual testing, the values determined by testing will be
assumed to be the more reliable values.
(6) In calculating the measures of energy consumption for each unit
tested, use the design heating requirement corresponding to the mean of
the capacities of the units of the sample.
(o)(1) For each basic model \1\ of vented home heating equipment
(not including furnaces) a sample of sufficient size shall be tested to
insure that--
(i) Any represented value of estimated annual operating cost, energy
consumption or other measure of energy consumption of a basic model for
which consumers would favor lower values shall be no less than the
higher of (A) the mean of the sample or (B) the upper 97\1/2\ percent
confidence limit of the true mean divided by 1.05, and
(ii) Any represented value of the fuel utilization efficiency or
other measure of energy consumption of a basic model for which consumers
would favor higher values shall be no greater than the lower of (A) the
mean of the sample or (B) the lower 97\1/2\ percent confidence limit of
the true mean divided by .95.
(2) In calculating the measures of energy consumption for each unit
tested use the design heating requirement corresponding to the mean of
the capacities of the units of the sample.
(p)(1) For each basic model \1\ of pool heater a sample of
sufficient size shall be tested to insure that--
---------------------------------------------------------------------------
\1\ Components of similar design may be substituted without
requiring additional testing if the represented measures of energy
consumption continue to satisfy the applicable sampling provision.
---------------------------------------------------------------------------
(i) [Reserved]
(ii) Any represented value of the fuel utilization efficiency or
other measure of energy consumption of a basic model for which consumers
would favor higher values shall be no greater than the lower of (A) the
mean of the sample or (B) the lower 97\1/2\ percent confidence limit of
the true mean divided by .95.
(q)(1) For each basic model of fluorescent lamp ballasts, as defined
in paragraph (14) of Sec. 430.2, a sample of sufficient size, no less
than four, shall be tested to insure that--
(i) Any represented value of estimated annual energy operating
costs, energy consumption, or other measure of energy consumption of a
basic model for which consumers would favor lower values shall be no
less than the higher of (A) the mean of the sample or (B) the upper 99
percent confidence limit of the true mean divided by 1.01, and
(ii) Any represented value of the ballast efficacy factor or other
measure of the energy consumption of a basic model for which consumers
would favor a higher value shall be no greater than the lower of (A) the
mean of the sample or (B) the lower 99 percent confidence limit of the
true mean divided by 0.99.
(r)(1) For each basic model of general service fluorescent lamp and
incandescent reflector lamp, samples of production lamps shall be tested
and the results for all samples shall be averaged for a 12-month period.
A minimum sample of 21 lamps shall be tested. The manufacturer shall
randomly select a minimum of three lamps from each month of production
for a minimum of 7 out of the 12-month period. In the instance where
production occurs during fewer than 7 of such 12 months, the
manufacturer shall randomly select a 3 or more lamps from each month of
production, where the number of lamps selected for each month shall be
distributed as evenly as practicable among the months of production to
attain a minimum sample of 21 lamps. Any represented value of lamp
efficacy of a basic model shall be based on the sample and shall be no
greater than the lower of the mean of the sample or the lower 95-percent
confidence limit of the true mean (XL) divided by 0.97, i.e.,
[GRAPHIC] [TIFF OMITTED] TR29MY97.001
where:
x = the mean luminous efficacy of the sample
s = the sample standard deviation
t0.95 = the t statistic for a 95-percent confidence limit for
n-1 degrees of freedom (from statistical tables)
n = sample size
[[Page 125]]
(2) For each basic model of general service fluorescent lamp, the
color rendering index (CRI) shall be measured from the same lamps
selected for the lumen output and watts input measurements in paragraph
(r)(1) of this section, i.e., the manufacturer shall measure all lamps
for lumens, watts input, and CRI. The CRI shall be represented as the
average of a minimum sample of 21 lamps and shall be no greater than the
lower of the mean of the sample or the lower 95-percent confidence limit
of the true mean (XL) divided by 0.97, i.e.,
[GRAPHIC] [TIFF OMITTED] TR29MY97.002
where:
x = the mean color rendering index of the sample
s = the sample standard deviation
t0.95 = the t statistic for a 95-percent confidence limit for
n-1 degrees of freedom (from statistical tables)
n=sample size
(s) For each basic model of faucet, \1\ a sample of sufficient size
shall be tested to ensure that any represented value of water
consumption of a basic model for which consumers favor lower values
shall be no less than the higher of:
---------------------------------------------------------------------------
\1\ Components of similar design may be substituted without
requiring additional testing if the represented measures of energy or
water consumption continue to satisfy the applicable sampling provision.
---------------------------------------------------------------------------
(1) The mean of the sample or
(2) The upper 95 percent confidence limit of the true mean divided
by 1.05.
(t) For each basic model \1\ of showerhead, a sample of sufficient
size shall be tested to ensure that any represented value of water
consumption of a basic model for which consumers favor lower values
shall be no less than the higher of:
(1) The mean of the sample or
(2) The upper 95 percent confidence limit of the true mean divided
by 1.05.
(u) For each basic model \1\ of water closet, a sample of sufficient
size shall be tested to ensure that any represented value of water
consumption of a basic model for which consumers favor lower values
shall be no less than the higher of:
(1) The mean of the sample or
(2) The upper 90 percent confidence limit of the true mean divided
by 1.1.
(v) For each basic model \1\ of urinal, a sample of sufficient size
shall be tested to ensure that any represented value of water
consumption of a basic model for which consumers favor lower values
shall be no less than the higher of:
(1) The mean of the sample or
(2) The upper 90 percent confidence limit of the true mean divided
by 1.1.
(Energy Policy and Conservation Act, Pub. L. 94-163, as amended by Pub.
L. 95-619; Department of Energy Organization Act, Pub. L. 95-91)
[44 FR 22416, Apr. 13, 1979, as amended at 44 FR 39153, July 5, 1979; 44
FR 76706, Dec. 27, 1979; 45 FR 53719, Aug. 12, 1980; 53 FR 8312, Mar.
14, 1988; 54 FR 6075, Feb. 7, 1989; 56 FR 18682, April 24, 1991.
Redesignated and amended at 59 FR 49474, 49475, Sept. 28, 1994; 62 FR
29239, May 29, 1997; 63 FR 13316, Mar. 18, 1998]