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GB 26920.2-2015 English PDF (GB26920.2-2015)

GB 26920.2-2015 English PDF (GB26920.2-2015)

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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

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.
GB 26920.2-2015
GB
NATIONAL STANDARD OF THE
PEOPLE 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 Republic of China;
Standardization Administration of the PEOPLE 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 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 SB/T 10794.2-2012 Commercial refrigerated cabinets ?€? Part 2. Classification, requirements and test condition
SB/T 10794.3-2012 Commercial refrigerated cabinets ?€? Part 3. Beverage
refrigerated display cabinets
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
TECmax
It refers to the maximum allowable values of the total energy consumption (TEC) after 24-hour operation under specified working conditions, in unit of kilowatt- hour per 24 hours (kWh/24h).
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.
3.4 Evaluation values of energy conservation for self-contained
commercial refrigerated cabinets
It refers to the maximum allowable actual energy efficiency indexes of energy- efficient self-contained commercial refrigerated cabinets under the test conditions specified in the standard.
three peripheries
Glass covers, wall-type,
with glass enclosure in the
front only
HC5-3
Fig 13, Fig 14, and Fig A.2
(left), ADD glass covers, the
front and rear cabinets are
inconsistent in height, and
with glass enclosure in the
front only
8.36 TDA 7.52 TDA 6.62 TDA
Glass covers, island-type,
with surrounding solid
enclosure
HC6-1 Fig 19 and Fig 20 5.17 TDA 4.65 TDA 4.09 TDA
Glass covers, island-type,
with surrounding glass
enclosure
HC6-2 Fig 17 and Fig 18, ADD glass covers 10.85 TDA 9.77 TDA 8.60 TDA
Glass covers, island-type,
with front and rear glass
enclosure
HC6-3
Fig 17 and Fig 18, ADD
glass covers, with front and
rear glass enclosure
8.01 TDA 7.21 TDA 6.34 TDA
Non-self-service counter
cabinets with closed
servers
HC7 Fig 15, Fig 16, and Fig A.1 (right) 10.35 TDA 9.32 TDA 8.20 TDA
Non-self-service counter
cabinets with closed
servers and storage rooms
HC8
Fig 15, Fig 16, and Fig A.1
(right) , with storage rooms
on the lower halves
For the Ebase whose upper half is HC7,
the storage room is 0.85 time the Ebase
corresponding to VC5 shown in Table 4.
Upright-type
for
refrigeration
Open-type &
Half-upright type VC1 Fig 21 and Fig A.3 (right) 26.79 TDA 24.11 TDA 21.21 TDA Open-type, with multilayer
division plates VC2
Fig 22, Fig 23, Fig 24, Fig
A.3 (left), and Fig A.9 20.68 TDA 18.61 TDA 16.38 TDA
Push-in type VC3 Fig 25 and Fig A.4 No value No value No value
Glass door type VC4 Fig 26 and Fig A.7 9.40 TDA 8.46 TDA 7.44 TDA
Combination-
type for
refrigeration
Open on the upper and
lower sides YC1 Fig A.5
The upper half is corresponding Ebase
(YC1 corresponds to VC2, and YC3
corresponds to VC4), and the lower half
is 1.2 times the Ebase corresponding to
HC4.
Glass door on the upper
side, and open on the lower
side
YC3 Type shown in Fig A.5
Open on the upper side,
and glass cover on the
lower side
YC2 Type shown in Fig A.5 The upper half is corresponding Ebase(YC2 corresponds to VC2, and YC4 corresponds to VC4), and the lower half
is 1.2 times the Ebase corresponding to
HC5.
Glass door on the upper
side, and glass cover on
the lower side
YC4 Type shown in Fig A.5
Note 1. k = 1. For the refrigerated cabinets labeled with the climate type 4, CC = 1.07; for those labeled with the climate type 7, CC = 1.14; for those labeled with the climate type 5, CC = 1.2; for those labeled with other climate types, CC = 1.
Note 2. For the refrigerated display cabinets with solid doors, the Ebase of solid doors is 0.85 time the maximum allowable valu...

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