GB/T 18837-2015 English PDF (GB/T18837-2015)

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GB/T 18837-2015: [Including 2021XG1] Multi-connected air-condition (heat pump) unit
GB/T 18837-2015
Multi-connected air-condition (heat pump) unit
ICS 27.200
J73
National Standards of People's Republic of China
Replacing GB/T 18837-2002
Multi-type air conditioning (heat pump) unit
Posted on.2015-12-10
2016-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Preface Ⅰ
1 range 1
2 Normative references 1
3 Terms and definitions 1
4 type, model and basic parameters 2
5 Requirements 4
6 Test 7
7 Inspection rules 11
8 logo, packaging, transportation and storage 13
Appendix A (Normative) Water-cooled multi-unit air conditioning (heat pump) unit cooling part load coefficient of performance test and calculation 15
Appendix B (Normative) Air-cooled multi-split air-conditioning (heat pump) unit of the seasonal energy consumption test and calculation 16
Appendix C (Normative) Air-cooled multi-unit air conditioning (heat pump) unit heating performance test requirements 39
Appendix D (Normative) Multi-unit air conditioning (heat pump) unit standby power test 45
Appendix E (Informative) heat recovery multi-connected air-conditioning (heat pump) unit heat recovery capacity of the test 46
Appendix F (Informative) Multi-unit air-conditioning (heat pump) unit piping performance correction parameters Test Method 47
Appendix G (informative) multi-connected air-conditioning (heat pump) unit indoor unit nominal cooling capacity calibration test method 49
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 18837-2002 "multi-connected air conditioning (heat pump) unit." Compared with GB/T 18837-2002 compared to the main technology
The content changes as follows.
--- Modify the scope of the standard (see Chapter 1);
--- Added "heat recovery unit" type, delete the "electric unit" type (see Chapter 3 and Chapter 4);
--- Added "according to the condenser cooling mode" (water-cooled, air-cooled) classification, delete the "climatic environment" (T1, T2, T3 type)
Classification (see Chapter 4);
--- Adjust the establishment of model requirements, delete the original "multi-connected air-conditioning (heat pump) unit model preparation method" (see 4.2);
--- Adjust the unit's normal working conditions and working conditions parameters (see 4.3);
--- Deleted the unit unbalanced rate requirements (see 5.1);
--- Performance requirements removed the "indoor unit power consumption", "indoor heat" requirements; an increase of "water pressure drop" and "standby power
Rate "requirements; adjust the cooling (heating) volume and the measured value of the noise limit requirements (see 5.4);
--- Removed the "heating coefficient of comprehensive performance" requirements, an increase of "cooling season energy efficiency ratio", "annual performance coefficient" and "cooling energy efficiency
Than the "requirement (see 5.4.18);
--- Increasing the test unit connection (see 6.3);
--- Increasing the performance test on the combination of indoor unit and the provisions of the boot state (see 6.4);
--- Increase the "water-cooled multi-unit air conditioning (heat pump) unit cooling part of the load coefficient of performance test and calculation" (see Appendix A);
--- Increase the "air-cooled multi-connected air-conditioning (heat pump) unit of seasonal energy consumption test and calculation" (see Appendix B);
--- Increase the "air-cooled multi-connected air-conditioning (heat pump) unit heating performance test requirements" (see Appendix C);
--- Increase "multi-connected air-conditioning (heat pump) unit standby power test" (see Appendix D);
--- Increase "heat recovery multi-connected air-conditioning (heat pump) unit heat recovery capability test" (see Appendix E);
--- Increase "multi-connected air-conditioning (heat pump) unit piping properties of the revised parameters test method" (see Appendix F);
--- Increase "multi-connected air-conditioning (heat pump) unit nominal cooling capacity calibration test method" (see Appendix G).
This standard is proposed by the China Machinery Industry Federation.
This standard by the National Refrigeration and Air Conditioning Equipment Standardization Technical Committee (SAC/TC238) centralized.
This standard is drafted by Hefei General Machinery Research Institute, Guangdong Midea HVAC Equipment Co., Ltd., Zhuhai Gree Electric Co., Ltd.
Company, Daikin (China) Investment Co., Ltd., Qingdao Hisense Hitachi Air Conditioning Systems Co., Ltd., Qingdao Haier Air Conditioning Electronics Co., Ltd., Fujitsu
General central air-conditioning (Wuxi) Co., Ltd., Jiangsu Chunlan Air Conditioning Equipment Co., Ltd., Hefei General Machinery Products Testing Institute Co., Ltd..
Participated in the drafting of this standard. Tsinghua University, Danfoss (Tianjin) Co., Ltd., Guangdong Ouke Air Conditioning and Refrigeration Co., Ltd., Shanghai Mitsubishi Electric
Machine Shangling Air Conditioner Co., Ltd., Shenzhen McQuay Air Conditioning Co., Ltd., Nanjing Tianjia Air Conditioning Equipment Co., Ltd., Trane air-conditioning system
(China) Co., Ltd. Johnson Controls Building Equipment Technology (Wuxi) Co., Ltd., Emerson Environmental Optimization Technology (Suzhou) Co., Ltd.
Panasonic Air Conditioner Co., Ltd.
The main drafters of this standard. Zhang Xiuping, Zhong Yu, Xu Yongfeng, Xiong Jianguo, Zhang Jianqiang, Meng Jianjun, national defense, Cai goods, Luan Aidong, Shi Wenxing,
Li Yong, Li Fang, Zhang Leping, Chen Jun, Lu Yun, Zhou Wei, Cheng Zhuoming, Zhang Weijia, Hu Xianghua, Su Xiaogeng, Chen Junliang.
This standard replaces the standards previously issued as.
--- GB/T 18837-2002.
Multi-type air conditioning (heat pump) unit
1 Scope
This standard specifies the terms and definitions, types, models and basic parameters of multi-connected air-conditioning (heat pump) unit (hereinafter referred to as "unit"),
Requirements, testing, inspection rules, signs, packaging, transportation and storage.
This standard applies to the use of Class A1 refrigerant GB/T 7778 multi-connected air conditioning (heat pump) unit. Use A2L refrigeration
Agent of the unit and the double refrigeration cycle system and multi-refrigeration cycle system can refer to this standard.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 191 Packaging - Pictorial signs
GB/T 2828.1 Sampling procedures for sampling inspection - Part 1. Batch inspection sampling plan retrieved by acceptance quality limit (AQL)
GB/T 6388 transport packaging shipping symbols
GB/T 7778 refrigerant numbering method and safety classification
GB 9237 Refrigeration and heat supply mechanical refrigeration system safety requirements
GB/T 13306 signs
Vapor compression cycle cold water (heat pump) unit performance test methods
Unitary air conditioner GB/T 17758-2010
GB/T 18430.1-2007 vapor compression cycle cold water (heat pump) unit - Part 1. industrial or commercial and similar use of cold
Water (heat pump) unit
GB 25130 unitary air conditioner safety requirements
JB/T 7249 Refrigeration equipment terminology
3 Terms and definitions
JB/T 7249 and GB/T 17758 as defined in the following terms and definitions apply to this document.
3.1
Multi-split air-condition (heat pump) unit multi-splitair-condition (heatpump) unit
One or several outdoor unit can be connected to several different or the same type, capacity of the direct evaporative indoor unit into a single refrigeration cycle
It can provide treated air directly to one or several areas.
3.2
Heat recovery multi-type air conditioning (heat pump) unit heatrecoverymulti-splitair-condition (heatpump) unit
A unit with different indoor functions that operate both heating and cooling modes. During operation, the unit is able to operate the cooling mode indoors
Condensing heat recovery for the indoor unit that is operating in heating mode.
3.3
Indoor system cooling (heating) capacityofindoormachine
Under specified cooling (heat) capability test conditions, the indoor unit (single unit) discharges (releases) from the enclosed space, room or area per unit of time