GB 26920.2-2015 PDF English
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Minimum allowable values of energy efficiency and energy efficiency grades for commercial refrigerating appliances - Part 2: Commercial refrigerated cabinets with self-contained condensing unit
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GB 26920.2-2015: Minimum allowable values of energy efficiency and energy efficiency grades for commercial refrigerating appliances - Part 2: Commercial refrigerated cabinets with self-contained condensing unit
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GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Minimum allowable values of energy efficiency and
energy efficiency grades for commercial refrigerating
appliances – Part 2.Commercial refrigerated cabinets
with self-contained condensing unit
Issued on. DECEMBER 10, 2015
Implemented on. JANUARY 1, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
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... 6
4 Technical requirements... 7
5 Test methods... 14
6 Inspection rules... 16
7 Energy efficiency grade labeling... 17
Appendix A... 18
Foreword
The Section 4.2 of this Part is mandatory, while other sections are
recommended.
GB 26920 Minimum allowable values of energy efficiency and energy efficiency
grades for commercial refrigerating appliances is intended to develop the
following four parts.
— Part 1.Refrigerated display cabinets with remote condensing unit;
— Part 2.Commercial refrigerated cabinets with self-contained condensing
unit;
— Part 3.Refrigerating vending machine;
— Part 4.Commercial ice maker.
This Part is the Part 2 of GB 26920.
This Part is drafted according to the rules given in the GB/T 1.1-2009.
This Part was proposed by the Department of Resource Conservation and
Environmental Protection of National Development and Reform Commission,
and the Department of Energy Conservation and Comprehensive Utilization of
the Ministry of Industry and Information Technology.
This Part shall be under the jurisdiction of the National Technical Committee for
Standardization of Energy Foundation and Management (SAC/TC 20).
Drafting organizations of this Part. China National Institute of Standardization,
Chinese Association of Refrigeration, Internal Trade Engineering Design &
Research Institute, Qingdao Haier Special Freezer Co., Ltd, Hisense Ronshen
(Guangdong) Freezer Co., Ltd, Guangdong Xingxing Refrigeration Equipment
Co., Ltd, Yindu Kitchen Equipment Co. Ltd, AHT Cooling Systems (Changshu)
Co., Ltd, Panasonic Appliances Cold Chain (Dalian) Co., Ltd, Jiangsu Baixue
Electric Appliances Co., Ltd, Carrier Air-conditioning & Refrigeration R & D
Management (Shanghai) Co., Ltd, Qingdao Hiron Commercial Cold Chain Co.,
Ltd, Shandong Xiaoya Retail Equipment Co., Ltd, Qingdao Haier-Carrier
Refrigeration Equipment Co., Ltd, Shanghai Highly Nakano Refrigerators Co.,
Ltd, Hoshizaki Motor (Suzhou) Co., Ltd, Aucma Co., Ltd, Shandong Hongtai
Electrical Appliance Co., Ltd, Epta (Qingdao) Commercial Facilities Co., Ltd,
Beijing Er Shang-Fukushima Machinery Electric Co., Ltd, Wenling Beibingyang
Fresh Showcase Factory, Shanghai Furong Industry Co., Ltd, Zhongshan Jingli
Refrigeration Equipment Manufacturing Co., Ltd, Beijing Embraco Snowflake
Compressor Company Ltd, Secop Compressors (Tianjin) Co., Ltd, Zhengzhou
Kaixue Cold Chain Co., Ltd, Jimei University, Tianjin University of Commerce,
Shanghai Ocean University, Harbin University of Commerce, and National
Quality Supervision and Inspection Center of Commercial Refrigeration
Equipment.
Main drafters of this Part. Cheng Jianhong, Liu Xiaopeng, Yang Yifan, Xiao
Yang, Ma Jian, Cheng Kai, Ding Jianbo, Jiang Xiaolin, Chen Yongjun, Zhu Xi,
Yang Ping, Zhou Xiaobo, He Jiacai, Ma Hongkui, Hu Zhaolong, Su Gongbing,
Xu Ye, Li Wenhao, Cheng Guiliang, Guan Qiusheng, Zhan Xiaodong, Ye
Haiping, Pan Xuan, Sun Zhonghao, Lu Weishun, Hu Xiuzhen, Ren Kailong, Ji
Zhijian, Liu Ming, Qin Zongmin, Zhang Jianyi, Shen Jiang, Wan Jinkang, Liu
Zhaoyong, Lin Xiaomiao, Zhang Yanjie, Yin Gang, and Yan Huili.
Minimum allowable values of energy efficiency and
energy efficiency grades for commercial refrigerating
appliances – Part 2.Commercial refrigerated cabinets
with self-contained condensing unit
1 Scope
This Part of the GB 26920 specifies the minimum allowable values of energy
efficiency, energy efficiency grades, evaluation values of energy conservation,
test methods, inspection rules, and energy efficiency grade labeling of
commercial refrigerated cabinets with self-contained condensing unit
(hereinafter referred to as “self-contained commercial refrigerated cabinets”).
This Part applies to the following commercial refrigerated cabinets.
— Self-contained commercial refrigerated cabinets for food sales and
exhibitions;
— Closed self-contained beverage refrigerated display cabinets used in
stores, hotels and restaurants;
— Commercial refrigerated cabinets with solid doors (such as kitchen
refrigerators, refrigerated storage cabinets, and refrigerated working
tables), and self-contained commercial refrigerated cabinets for non-retail
uses.
2 Normative references
The following documents are essential to the application of this document. For
dated references, only the versions with the dates indicated are applicable to
this document. For undated references, only the latest versions (including all
the amendments) are applicable to this document.
GB/T 21001.1 Refrigerated display cabinets – Part 1.Vocabulary
GB/T 21001.2-2015 Refrigerated display cabinets – Part 2.Classification,
requirements and test conditions
GB/T 21001.3 Refrigerated display cabinets – Part 3.Test rating
SB/T 10794.1-2012 Commercial refrigerated cabinets – Part 1.Vocabulary
3 Terms and definitions
The terms and definitions defined in the GB/T 21001.1, GB/T 21001.2-2015,
GB/T 21001.3, SB/T 10794.1-2012, SB/T 10794.2-2012, and SB/T 10794.3-
2012 as well as the following ones apply to this document.
3.1 Maximum allowable values of energy consumption of self-contained
commercial refrigerated cabinets
3.2 The base value of energy consumption
Ebase
It refers to the energy consumption of the commercial refrigerated cabinet with
single room and classified as some basic cabinet structure after 24-hour
operation under specified working conditions, in unit of kilowatt-hour per 24
hours (kWh/24h).
3.3 Actual energy efficiency index
It refers to the ratio OF the measured value of energy consumption (total energy
consumption, TEC) TO the maximum allowable value of energy consumption
(TECmax) of the self-contained commercial refrigerated cabinet.
3.5 The independent room
It refers to the refrigeration room using thermal insulation materials for isolation
in the refrigerated cabinet.
4 Technical requirements
4.1 Calculation of maximum allowable values of energy consumption
CALCULATE the maximum allowable values of energy consumption according
to the Formula (1).
4.2 Maximum allowable values of energy consumption of self-contained
commercial refrigerated cabinets
The energy consumption of different types of self-contained commercial
refrigerated cabinets shall not be greater than the maximum allowable value of
energy consumption of the corresponding type of products.
5 Test methods
5.1 General
Besides the requirements specified in the Sections 5.2, 5.3 and 5.4 of this Part
and the test methods for self-contained commercial refrigerated cabinets,
CONDUCT tests to the self-contained commercial refrigerated cabinets for
sales and exhibitions according to the provisions specified in the GB/T 21001.2-
2015; CONDUCT tests to the refrigerated cabinets with solid doors and the self-
contained commercial refrigerated cabinets for non-retail uses according to the
provisions specified in the SB/T 10794.2-2012; CONDUCT tests to the
beverage refrigerated display cabinets according to the provisions specified in
the SB/T 10794.3-2012.
5.2 Self-contained refrigerated display cabinets
CONDUCT the energy consumption test under the conditions of meeting the
test conditions and climate types specified in the GB/T 21001.1 and GB/T
21001.2-2015.USE lighting devices and anti-condensation heaters during the
test, unless this kind of devices are controlled by clocks, smart sensors, or
similar automatic defrosting devices. When the display cabinets are equipped
with night covers/night curtains and lighting devices, CONDUCT the test
according to the requirements for the display cabinets with night covers/night
curtains and lighting devices specified in the Step 2 of the Section 5.3.2.7 of the
GB/T 21001.2-2015.
5.4 Commercial refrigerated cabinets with solid doors
CONDUCT the energy consumption test according to the test conditions and
the conditions of the climate type 4 specified in the SB/T 10794.2-2012.Besides
using the interpolation method to conduct the energy consumption test, it is also
allowed to conduct the test that meets the (more severe) conditions of test
packet temperature, and whose characteristic temperature error is less than or
equal to 0.5°C.
6 Inspection rules
6.1 Exit-factory inspection
6.1.1 The maximum allowable values of energy consumption shall be
considered as the exit-factory inspection item of commercial refrigerated
cabinets.
6.1.2 The non-conforming products identified after the inspection are not
allowed to leave the factory.
6.2 Type inspection
6.2.1 The commercial refrigerated cabinets shall be conducted with the type
inspection under one of the following circumstances.
6.2.2 TAKE one sample each time for the sampling of type inspection. If the
energy consumption fails to conform to the requirements for the maximum
allowable values of energy consumption specified in this Part, DOUBLE the
number of samples taken from this batch of products for re-inspection. If there
is still one sample fails to conform to the requirements, this batch of products
will be identified as non-conforming products.
6.3 Inspection report
SEE Appendix A for the information needed for the exit-factory inspection and
type inspection reports.
6.4 Acceptance
The ordering party shall have the right to check whether the energy
consumption and energy efficiency grades of the products conform to the
requirements specified in this Part.
7 Energy efficiency grade labeling
7.1 The manufacturers shall test the energy consumption coefficient of their
products according to the requirements specified in this Part.
7.2 The manufacturers shall determine the rated energy efficiency grades of
the products according to the test results.
Appendix A
(Informative)
Inspection report information
A.1 General
This Appendix lists the information that shall be included in the inspection report
after accomplishing the inspection according to the GB/T 21001.2-2015 and
GB/T 21001.3 or SB/T 10794.1-2012, SB/T 10794.2-2012 and SB/T 10794.3-
2012.The test conducted to each sample shall have separate inspection result.
A.3 Information of self-contained commercial refrigerated cabinets
Trademark.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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