GB 21455-2019 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 21455-2019 | English | 285 |
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Minimum Allowable Values of the Energy Efficiency and Energy Efficiency Grades for Room Air Conditioners
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| GB 21455-2013 | English | 279 |
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Minimum allowable values of the energy efficiency and energy efficiency grades for variable speed room air conditioners
| Obsolete |
| GB 21455-2008 | English | 239 |
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The minimum allowable values of the energy efficiency and energy efficiency grades for variable speed room air conditioners
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GB 21455-2019: Minimum Allowable Values of the Energy Efficiency and Energy Efficiency Grades for Room Air Conditioners
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB21455-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Replacing GB 12021.3-2010, GB 21455-2013
Minimum Allowable Values of the Energy Efficiency
and Energy Efficiency Grades for Room Air
Conditioners
Issued on. DECEMBER 31, 2019
Implemented on. JULY 1, 2020
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 5
4 Energy Efficiency Grades... 6
5 Technical Requirements... 7
6 Test Methods... 9
7 Implementation of Standard... 12
Appendix A (normative) Test and Calculation Methods for Seasonal Energy
Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF) of
Room Air Conditioners... 13
Appendix B (normative) Various Temperature Occurrence Times of Outdoor
Environment during Cooling and Heating Seasonal Operation of Room Air
Conditioners... 50
Appendix C (normative) Test Method for Unsteady-state Heating... 51
Foreword
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard serves as a replacement of GB 12021.3-2010 The Minimum Allowable
Value of the Energy Efficiency and Energy Efficiency Grades for Room Air Conditioners,
GB 21455-2013 Minimum Allowable Values of the Energy Efficiency and Energy
Efficiency Grades for Variable Speed Room Air Conditioners. In comparison with GB
12021.3-2010 and GB 21455-2013, other than editorial modifications, the main
technical changes are as follows.
---The Scope is modified (see Chapter 1);
---The product’s energy efficiency rating indexes are modified (see Chapter 4);
---The product’s minimum allowable values of energy efficiency are modified (see
5.1).
This Standard was proposed by Standardization Administration of the People’s
Republic of China; Resource Conservation and Environmental Protection Department
of National Development and Reform Commission.
This Standard shall be under the jurisdiction of Standardization Administration of the
People’s Republic of China.
The main drafting organizations of this Standard. China National Institute of
Standardization; GREE Electric Appliances, Inc. of Zhuhai; Guangdong Midea
Refrigeration Equipment Co., Ltd.; Qingdao Haier Air Conditioner Co., Ltd.; China
Household Electric Appliance Research Institute (CHEARI); Hefei General Machinery
& Electrical Products Inspection Institute; Beijing University of Technology; Shanghai
Jiao Tong University; Shanghai Highly (Group) Co., Ltd.; South China University of
Technology; Emerson Research and Solutions Center; International Copper
Association Ltd. China; Zhejiang Sanhua Intelligent Control Co., Ltd.; DAIKIN (China)
Investment Co., Ltd.; Sichuan Changhong Air Conditioner Co., Ltd.; Shanghai
MITSUBISHI Electric MITSUBISHI Air Conditioner Appliance Co., Ltd.; AVIC
Electromechanical (Shenyang) SANYO Refrigeration Equipment Co., Ltd.; Vkan
Certification & Testing Co., Ltd. (CVC); Panasonic Appliances Air-conditioning
(Guangzhou) Co., Ltd.; DAIKIN Device (Xi’an) Co., Ltd.; Guangdong GMCC
Refrigeration Equipment CO., Ltd.; Zhuhai LAMDA Compressor Co., Ltd.; Panasonic
Appliances Compressor (Dalian) Co., Ltd.; Ningbo AUX Electric Co., Ltd.; Guangdong
CHIGO Air Conditioning Co., Ltd.; Hisense (Shandong) Air Conditioner Co., Ltd.; TCL
Air Conditioner (ZHongshan) Co., Ltd.; Xi’an Qingan Refrigeration Equipment Co., Ltd.;
The main drafters of this Standard. Cheng Jianhong, Tan Jianming, Zhang Hao, Zhang
Mingjie, Cai Ning, Zhang Mingsheng, Li Hongqi, Ding Guoliang, Zhou Yi, Wu
Jianghong, Guo Weihua, Liu Meng, Shen Juan, Yuan Ze, Zhang Jianqiang, Chen Jin,
Liu Fan, Lu Dongming, Jiang Huawei, Wu Zhidong, Chen Junliang, Jia Weiqiang, Yang
Jingtao, Xie Lichang, Zhou Yingtao, Zhang Tianshun, Zheng Chongkai, Hu Gen, Lu
Hongwei, Sun Min, Yang Jie, He Tingting.
The issuing of the previous versions.
---GB 12021.3-1989, GB 12021.3-2000, GB 12021.3-2004, GB 12021.3-2010;
---GB 21455-2008, GB 21455-2013.
Minimum Allowable Values of the Energy Efficiency
and Energy Efficiency Grades for Room Air
Conditioners
1 Scope
This Standard specifies the energy efficiency grades, the minimum allowable values of
energy efficiency and test methods for room air conditioners.
This Standard is applicable to room air conditioners which adopt air-cooled condensers
and fully enclosed electric compressors, and with a rated cooling capacity not greater
than 14,000 W and with a climate type T1, as well as low ambient temperature air
source heat pump air heaters with a nominal heating capacity not greater than 14,000
W.
This Standard is not applicable to mobile air conditioners, multi-connected air
conditioning units and air-duct air conditioners.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 7725-2004 Room Air Conditioners
GB/T 35758-2017 Household Electrical Appliances - Measurement of Standby Power
JB/T 13573-2018 Low Ambient Temperature Air Source Heat Pump Air Heaters
3 Terms and Definitions
What is defined in GB/T 7725-2004 and JB/T 13573-2018, and the following terms and
definitions are applicable to this document.
3.1 Minimum Allowable Values of Energy Efficiency for Room Air- conditioners
Minimum allowable values of energy efficiency for room air-conditioners refers to the
minimum allowable values of energy consumption efficiency during the cooling and
heating operation under specified operating conditions.
3.2 Minimum Allowable Values of Energy Efficiency for Low Ambient
Temperature Air Source Heat Pump Air Heaters
Minimum allowable values of energy efficiency for low ambient temperature air source
heat pump air heaters refers to the minimum allowable values of heating seasonal
performance factor during the heating operation under specified operating conditions.
4 Energy Efficiency Grades
4.1 Energy Efficiency Grades of Room Air Conditioners
4.1.1 There are 5 grades of energy efficiency of room air conditioners, among which,
Grade-1 is the highest energy efficiency grade.
4.1.2 In terms of the heat pump room air conditioners, in accordance with the actually
measured annual performance factor (APF) of the product, the energy efficiency is
graded. The actually measured annual performance factor (APF) of each energy
efficiency grade shall be not less than what is specified in Table 1.
4.1.3 In terms of single-cooling room air conditioners, in accordance with the actually
measured seasonal energy efficiency ratio (SEER), the energy efficiency is graded.
The actually measured seasonal energy efficiency ratio (SEER) of each energy
4.2 Energy Efficiency Grades of Low Ambient Temperature Air Source
Heat Pump Air Heaters
4.2.1 In terms of low ambient temperature air source heat pump air heaters, in
accordance with the actually measured heating seasonal performance factor (HSPF),
the energy efficiency is graded.
5 Technical Requirements
5.1 Minimum Allowable Values of Energy Efficiency
5.1.1 In terms of the heat pump room air conditioners with fixed revolution speed
compressor, the annual performance factor (APF) and single-cooling seasonal energy
efficiency ratio (SEER) shall be not less than the index value of Grade-5 energy
5.1.2 In terms of the low ambient temperature air source heat pump air heaters, the
heating seasonal performance factor (HSPF) shall be greater than or equal to the index
value of Grade-3 energy efficiency.
5.2 Electric Auxiliary Heating
5.2.1 Products that use electric auxiliary heating shall be able to implement manual
turn-on and turn-off of the electric auxiliary heating system. Meanwhile, a display
showing the operating state of the electric auxiliary heating system shall be installed in
an obvious position.
5.3 Energy Consumption in Standby Mode
5.3.1 In terms of products with a rated cooling capacity of 4,500 W and below, and
products without communication protocols, such as. sensors, WIFI and Bluetooth (or
these functions can be turned off during the test, and the products are tested after
these functions are turned off), the energy consumption in standby mode is not greater
than 3 W.
5.4 Tolerances
5.4.1 The stated value of energy efficiency shall be within the value range
corresponding to its rated energy efficiency grade; the actually measured energy
efficiency value shall be not less than 95% of the stated value.
5.4.2 The rated cooling capacity stated by the room air conditioners and the actually
measured value shall be within the range of the rated cooling capacity corresponding
to the rated energy efficiency grade.
6 Test Methods
6.1 Test Methods for Room Air Conditioners
6.1.1 Test and calculation methods for energy consumption efficiency
The test methods for seasonal energy efficiency ratio (SEER) and heating seasonal
performance factor (HSPF) shall comply with the relevant stipulations of Appendix A.
The calculation of seasonal energy efficiency ratio (SEER) and cooling seasonal total
energy; heating seasonal performance factor (HSPF) and heating seasonal total
energy;
6.2 Test Methods for Low Ambient Temperature Air Source Heat Pump Air
Heaters
6.2.1 Test and calculation methods for energy consumption efficiency
The test methods for heating seasonal performance factor (HSPF), nominal heating
coefficient of performance (COP-12°C) and low temperature heating coefficient of
performance (COP-20°C) shall comply with the relevant stipulations of JB/T 13573-2018.
The occurrence time of each temperature that needs to be heated in the heating
season shall comply with the stipulations of Table D.2 in JB/T 13573-2018.
6.2.3 Test and calculation methods for energy consumption in standby mode
Energy consumption in standby mode shall be tested in accordance with the
stipulations of GB/T 35758-2017.During the test, the ambient temperature of the
laboratory shall be maintained at (23 ± 5) °C. The expanded uncertainty of the
measurement by the power measuring instrument shall be not greater than 0.02 W (95%
confidence interval); the division value of the instrument shall be able to read at least
0.01 W.
7 Implementation of Standard
Products exited factory or imported before the date of implementation of this Standard
may be sold before June 30, 2021.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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