Appendix F to Subpart B of Part 430 - Uniform Test Method for Measuring the Energy Consumption of Room Air Conditioners
10:3.0.1.4.18.2.13.6.14 : Appendix F
Appendix F to Subpart B of Part 430 - Uniform Test Method for
Measuring the Energy Consumption of Room Air Conditioners Note:
Manufacturers are not required to use the test procedures and
calculations that refer to standby mode and off mode energy
consumption, (specifically, sections 2.2, 3.2, 4.2, and 5.3 of this
appendix F) until the compliance date of any amended energy
conservation standards for room air conditioners at 10 CFR
430.32(b).
1. Definitions.
1.1 “Active mode” means a mode in which the room air conditioner
is connected to a mains power source, has been activated and is
performing the main function of cooling or heating the conditioned
space, or circulating air through activation of its fan or blower,
with or without energizing active air-cleaning components or
devices such as ultraviolet (UV) radiation, electrostatic filters,
ozone generators, or other air-cleaning devices.
1.2 “ANSI/AHAM RAC-1” means the test standard published jointly
by the American National Standards Institute and the Association of
Home Appliance Manufacturers, titled “Room Air Conditioners,”
Standard RAC-1-2008 (incorporated by reference; see § 430.3).
1.3 “ANSI/ASHRAE 16” means the test standard published jointly
by the American National Standards Institute and the American
Society of Heating, Refrigerating, and Air-Conditioning Engineers
titled “Method of Testing for Rating Room Air Conditioners and
Packaged Terminal Air Conditioners,” Standard 16-1983 (RA 2009)
(incorporated by reference; see § 430.3).
1.4 “IEC 62301” means the test standard published by the
International Electrotechnical Commission, (“IEC”), titled
“Household electrical appliances - Measurement of standby power,”
Publication 62301 (first edition June 2005), (incorporated by
reference; see § 430.3).
1.5 “Inactive mode” means a standby mode that facilitates the
activation of active mode by remote switch (including remote
control) or internal sensor or which provides continuous status
display.
1.6 “Off mode” means a mode in which a room air conditioner is
connected to a mains power source and is not providing any active
or standby mode function and where the mode may persist for an
indefinite time. An indicator that only shows the user that the
product is in the off position is included within the clasification
of an off mode.
1.7 “Standby mode” means any product modes where the where the
energy using product is connected to a mains power source and
offers one or more of the following user oriented or protective
functions which may persist for an indefinite time:
(a) To facilitate the activation of other modes (including
activation or deactivation of active mode) by remote switch
(including remote control), internal sensor, or timer.
(b) Continuous functions, including information or status
displays (including clocks) or sensor-based functions. A timer is a
continuous clock function (which may or may not be associated with
a display) that provides regular scheduled tasks (e.g.,
switching) and that operates on a continuous basis.
2. Test methods.
2.1 Cooling. The test method for testing room air
conditioners in cooling mode shall consist of application of the
methods and conditions in ANSI/AHAM RAC-1 sections 4, 5, 6.1, and
6.5 (incorporated by reference; see § 430.3), and in ANSI/ASHRAE 16
(incorporated by reference; see § 430.3).
2.2 Standby and off modes. The method for testing room
air conditioners in standby and off modes shall consist of
application of the methods and conditions in IEC 62301
(incorporated by reference; see § 430.3), as modified by the
requirements of this standard. The testing may be conducted in test
facilities used for testing cooling performance. If testing is not
conducted in such a facility, the test facility shall comply with
IEC 62301 section 4.2.
3. Test conditions.
3.1 Cooling mode. Establish the test conditions described
in sections 4 and 5 of ANSI/AHAM RAC-1 (incorporated by reference;
see § 430.3) and in accordance with ANSI/ASHRAE 16 (incorporated by
reference; see § 430.3).
3.2 Standby and off modes.
3.2.1 Test room conditions. Maintain the indoor test
conditions as required by section 4.2 of IEC 62301 (incorporated by
reference; see § 430.3). If the standby and off mode testing is
conducted in a facility that is also used for testing cooling
performance, maintain the outdoor test conditions either as
required by section 4.2 of IEC 62301 or as described in section
3.1. If the unit is equipped with an outdoor air ventilation
damper, close this damper during testing.
3.2.2 Power supply. Maintain power supply conditions
specified in section 4.3 of IEC 62301 (incorporated by reference;
see § 430.3). Use room air conditioner nameplate voltage and
frequency as the basis for power supply conditions. Maintain power
supply voltage waveform according to the requirements of section
4.4 of IEC 62301.
3.2.3 Watt meter. The watt meter used to measure standby
mode and off mode power consumption of the room air conditioner
shall have the resolution specified in section 4, paragraph 4.5 of
IEC 62301 (incorporated by reference; see § 430.3). The watt meter
shall also be able to record a “true” average power specified in
section 5, paragraph 5.3.2(a) of IEC 62301.
4. Measurements.
4.1 Cooling mode. Measure the quantities delineated in
section 5 of ANSI/AHAM RAC-1 (incorporated by reference; see §
430.3).
4.2 Standby and off modes. Establish the testing
conditions set forth in section 3.2. Prior to the initiation of the
test measurements, the room air conditioner shall also be installed
in accordance with section 5, paragraph 5.2 of IEC 62301
(incorporated by reference; see § 430.3). For room air conditioners
that drop from a higher power state to a lower power state as
discussed in section 5, paragraph 5.1, note 1 of IEC 62301, allow
sufficient time for the room air conditioner to reach the lower
power state before proceeding with the test measurement. Follow the
test procedure specified in section 5, paragraph 5.3 of IEC 62301
for testing in each possible mode as described in 4.2.1 and 4.2.2,
except allow the product to stabilize for 5 to 10 minutes and use
an energy use measurement period of 5 minutes. For units in which
power varies over a cycle, as described in section 5, paragraph
5.3.2 of IEC 62301, use the average power approach in paragraph
5.3.2(a).
4.2.1 If a room air conditioner has an inactive mode, as defined
in 1.5, measure and record the average inactive mode power of the
room air conditioner, PIA, in watts.
4.2.2 If a room air conditioner has an off mode, as defined in
1.6, measure and record the average off mode power of the room air
conditioner, POFF, in watts.
5. Calculations.
5.1 Calculate the cooling capacity (expressed in Btu/hr) as
required in section 6.1 of ANSI/AHAM RAC-1 (incorporated by
reference; see § 430.3) and in accordance with ANSI/ASHRAE 16
(incorporated by reference; see § 430.3).
5.2 Determine the electrical power input (expressed in watts) as
required by section 6.5 of ANSI/AHAM RAC-1 (incorporated by
reference; see § 430.3) and in accordance with ANSI/ASHRAE 16
(incorporated by reference; see § 430.3).
5.3 Standby mode and off mode annual energy consumption.
Calculate the standby mode and off mode annual energy consumption
for room air conditioners, ETSO, expressed in kilowatt-hours per
year, according to the following:
ETSO = [(PIA × SIA) + (POFF × SOFF)] × K Where: PIA = room air
conditioner inactive mode power, in watts, as measured in section
4.2.1 POFF = room air conditioner off mode power, in watts, as
measured in section 4.2.2. If the room air conditioner has both
inactive mode and off mode, SIA and SOFF both equal 5,115 ÷ 2 =
2,557.5, where 5,115 is the total inactive and off mode annual
hours; If the room air conditioner has an inactive mode but no off
mode, the inactive mode annual hours, SIA, is equal to 5,115 and
the off mode annual hours, SOFF, is equal to 0; If the room air
conditioner has an off mode but no inactive mode, SIA is equal to 0
and SOFF is equal to STOT; K = 0.001 kWh/Wh conversion factor for
watt-hours to kilowatt-hours. [76 FR 1035, Jan. 6, 2011]