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GB/T 23137-2020: Heat pump water heater for household and similar application Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 23137: Historical versions
Similar standardsGB/T 23137-2020: Heat pump water heater for household and similar application---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/GBT23137-2020GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 97.100.99 Y 63 Replacing GB/T 23137-2008 Heat Pump Water Heater for Household and Similar Application Issued on. APRIL 28, 2020 Implemented on. NOVEMBER 1, 2020 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 6 4 Product Classification... 9 5 Technical Requirements... 12 6 Test Methods... 19 7 Inspection Rules... 36 8 Marking, Packaging, Transportation and Storage... 39 Appendix A (normative) Test and Calculation Methods for Annual Performance Factor of Air-source Heat Pump Water Heaters... 43 Appendix B (normative) Test Method for Non-steady-state Heat Pump Heating Capacity... 49 Appendix C (normative) Test Method for Water Temperature Test in Water Tank... 521 ScopeThis Standard specifies the terms and definitions, product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of heat pump water heater for household and similar application (hereinafter referred to as heat pump water heater). This Standard is applicable to heat pump water heater for household and similar application driven by electric motors, using vapor compression refrigeration cycle, and air or water as the heat source, and for the purpose of providing hot water. Heat pump water heaters with other heat sources or purposes may take this as a reference. This Standard does not apply to industrial heat pump water heaters.2 Normative ReferencesThe 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 191 Packaging - Pictorial Marking for Handling of Goods GB/T 1019 General Requirements for the Package of Household and Similar Electrical Appliances GB/T 1766 Paints and Varnishes - Rating Schemes of Degradation of Coats GB/T 2423.3 Environmental Testing - Part 2.Testing Method - Test Cab. Damp Heat, Steady State GB/T 2423.17 Environmental Testing for Electric and Electronic Products - Part 2.Test Method - Test Ka. Salt Mist GB/T 9286 Paints and Varnishes - Cross-cut Test GB/T 14522 Artificial Weathering Test Method for Plastics, Coating and Rubber Materials Used for Machinery Industrial Products - Fluorescent UV Lamps GB 17625.1 Electromagnetic Compatibility - Limits - Part 1.Limits for Harmonic Current Emissions (equipment input current 16 A per phase) GB/T 29780 Hermetic Motor - Compressors for Household and Similar Application Heat Pump Water Heater JB/T 10359 Environmental Technical Requirements of the Plastics for the Outdoor Units for Air Conditioners3 Terms and DefinitionsThe following terms and definitions are applicable to this document. 3.1 heat pump water heater Heater pump water heater refers to an equipment that utilizes a motor-driven vapor compression refrigeration cycle to transfer heat from air or water to heated water to produce domestic hot water. 3.2 air-source heat pump water heater Air-source heat pump water heater refers to a heat pump water heater using ambient air as the heat source. 3.3 water-source heat pump water heater Water-source heat pump water heater refers to a heat pump water heater using water (including water drawn from wells, lakes, seas or rivers, or water circulated in underground coils, and available water for other purposes) as the heat source. 3.4 instantaneous heat pump water heater Instantaneous heat pump water heater refers to a heat pump water heater, in which, the initial cold water flows through the heat exchanger inside the heat pump water heater once and reaches the temperature set by the user. 3.5 circulating heat pump water heater Circulating heat pump water heater refers to a heat pump water heater, in which, the initial cold water flows through the heat exchanger inside the heat pump water heater for several times and gradually reaches the set temperature.4 Product Classification4.1 Types of Classification 4.1.1 Classification by the mode of heat source. 4.1.2 Classification by the type of power source. 4.2 Optimal Values 4.2.1 The recommended optimal values of the rated capacity of the water storage tank of the heat pump water heater are. 4.2.2 The recommended optimal values of the rated heating water capacity of the heat pump water heater are. 4.3 Model Naming Example. KFD-BpY70/150A represents a split-type air-source instantaneous variable-frequency heat pump water heater with an auxiliary electrical heat source, a heating water capacity of 70 L/h and a water tank capacity of 150 L, and the manufacturer’s customized serial No. is A. 4.4 Basic Parameters The test conditions of the heat pump water heater are shown in Table 1 and Table 2.5 Technical Requirements5.1 General Requirements 5.1.2 On the premise that the quality of the inlet water complies with GB 5749, all pipelines and heat exchange equipment on the water-side of the heat source shall have the ability to resist corrosion; during use, the heat pump water heater shall not contaminate the water source used. 5.2 Structural Requirements 5.2.1 The fasteners and other components of the heat pump water heater shall comply with relevant national standards, and its wearing parts shall be easy to replace. 5.2.2 When the water inlet and outlet pipes of the heat pump water heater are directly installed in the sub-water supply system, the water inlet and outlet pipes shall comply with the requirements of relevant national standards. 5.3 Weather Resistance Requirements After being subject to the test in accordance with 6.14, the heat pump water heater shall comply with the following requirements. 5.4 Air-tightness and Pressure-bearing Requirements 5.5 Performance Requirements for the Heat Pump Water Heater under Nominal Conditions 5.5.1 Heat pump heating capacity When carrying out the test in accordance with the method of 6.3, the measured heating capacity of the heat pump shall not be less than 95% of the nominal value of the heat pump heating capacity. 5.5.2 Heating water capacity When carrying out the test in accordance with the method of 6.3, the measured heating water capacity shall not be less than 95% of the nominal value of the heating water capacity. 5.5.5 High-temperature heating performance 5.5.8 Requirements for annual average heating performance of heat pump 5.6.1 General requirements The heat pump water heater shall be able to operate normally under the temperature conditions specified in Table 1 or Table 2. 5.6.2 Maximum operation When carrying out the test in accordance with the method of 6.5, during the whole test process, each component of the heat pump water heater shall not be damaged, and the heat pump water heater shall be able to operate normally. 5.7 Hot Water Storage Performance 5.7.1 Insulation performance The insulation performance shall be tested in accordance with the method of 6.10.After 24 h of storage, the drop in temperature of the hot water shall not be greater than the requirements of Table 5. 5.7.2 Performance 5.8 Noise The noise of the heat pump water heater shall comply with the following requirements. 5.9 Requirements for Packaging After being subject to the test of 6.12, the packaging box, foam and other protective accessories shall not be deformed to affect the protective function. The heat pump water heater in the packaged state shall comply with the relevant stipulations of GB/T 1019.The air-tightness and noise of the refrigeration system shall comply with the stipulations of 5.4.1 and 5.8. 5.10 Requirements for Transportation After being subject to the test in accordance with the method specified in 6.13, the heat pump water heater shall not be damaged and the fasteners shall not be loose. The refrigerant leakage and noise shall comply with the stipulations of 5.4.1 and 5.8.6 Test Methods6.1 General Conditions of Test 6.1.1 Temperature conditions The test conditions of the air-source heat pump water heater shall comply with the stipulations of Table 1; the test conditions of the water-source heat pump water heater shall comply with the stipulations of Table 2.Select the corresponding operating conditions for the test. 6.1.2 Power supply conditions 6.1.3 Test instruments and meters 6.1.4 General requirements for test 6.2 Air-tightness and Pressure-bearing Tests of Heat Pump Water Heater 6.2.1 Air-tightness test for refrigeration system 6.2.2 Pressure-bearing test for water system Apply water pressure to the container and heat exchanger; increase the water pressure to the following specified value at a rate of 0.13 MPa/s and maintain at this value for 5 min. The water pressure is. 6.3 Heat Pump Heating Capacity 6.3.1 General conditions of test If there is no special requirement, the heat pump heating capacity test shall be carried out under the following conditions. 6.3.2 Test method for heat pump heating capacity 6.4 Heat Pump Heating Power Input While testing the heating capacity of the heat pump, determine the heat pump heating power input. For the circulating heat pump water heaters and the static heat pump water heaters, the heat pump heating power input is the ratio of electricity consumption to heating time. 6.5 Maximum Operation 6.5.1 Instantaneous heat pump water heaters At the rated frequency, respectively adjust the test voltage to 90% and 110% of the rated voltage. Under the maximum operating conditions specified in Table 1 or Table 2, start the operation of the heat pump water heater. After reaching a stability, continuously operate for 30 min, then, stop for 3 min (during this period, the voltage rise shall not exceed 3%); start to operate for 30 min. 6.6 Automatic Defrosting 6.7 Minimum Operation 6.7.1 Minimum operation test for instantaneous heat pump water heaters Under the minimum operating conditions specified in Table 1 or Table 2, make the heat pump water heater operate, until the operating conditions are stable, then, operate for 4 h. 6.7.3 Minimum operation test for static heat pump water heaters Connect the water tank (water tank of the maximum capacity) in standard configuration of the heat pump water heater; under the minimum operating conditions specified in Table 1 or Table 2, start the operation, until the heat pump water heater reaches the maximum set temperature, then, stop. 6.8 Low-temperature Operation with Hot Water 6.10 Hot Water Storage Performance 6.11 Noise Test 6.11.1 Measurement site The measurement site shall be a full or semi-anechoic chamber on the reflection plane. The difference between the noise of the heat pump water heater under test and the background noise shall be above 10 dB(A). 6.11.2 Measuring instruments The test instruments shall use a sound level meter of Type I or above specified in GB/T 3785.1- 2010, and other test instruments with comparable accuracy. 6.11.3 Installation conditions The heat pump water heater shall be installed in accordance with the relevant technical conditions, and both the outdoor unit and the water tank shall be placed on a 5 mm thick rubber pad (with a shore hardness of 45).7 Inspection Rules7.1 Category of Inspection The inspection of the heat pump water heaters is generally classified into exit-factory inspection, sampling inspection and type inspection. 7.2 Exit-factory Inspection 7.2.1 All heat pump water heaters submitted for delivery shall be subject to exit-factory inspection in accordance with the corresponding product inspection management regulations. The test items, test requirements and test methods of the exit-factory inspection are shown in the stipulations of Table 11.Each unit shall pass the inspection of the production line before exiting the factory, and be accompanied by quality inspection certificate, installation instructions, warranty sheet, packing list and other documents and accessories. 7.2.2 After the exit-factory inspection, all qualified products can be delivered as qualified products (genuine products); disqualified products found through inspection are not allowed to be mixed into qualified batches, and shall be properly reworked to restore to a qualified state, then, they can be delivered as qualified products; products that still cannot be restored to a qualified state after rework must not be treated as qualified products. 7.3 Sampling Inspection The sampling inspection items, test requirements and test methods are shown in Table 11.The sampling shall be carried out in accordance with GB/T 2828.1.The sampling inspection items, batch size, sampling scheme, inspection level and acceptable quality level of the batch-by-batch inspection may be determined by the quality inspection department of the manufacturer. After passing the sampling inspection, all qualified products can be delivered to the ordering party as qualified products. 7.4 Type Inspection 7.4.1 Under one of the following circumstances, the heat pump water heaters shall be subject to the type inspection. 7.4.2 The type inspection items include all the test items specified in the items listed in Table 11. 7.4.3 The sampling for type inspection shall be carried out in accordance with GB/T 2829-2002, and a one-time sampling scheme with discrimination level I shall be adopted. See Table 12 for the sample size and rejection quality level. 7.4.4 The safety items of the type inspection are all fatal flaws, and the determination of the safety items must be 100% qualification. If there is one disqualified item, then, the cycle of products shall be determined as disqualified. 7.4.5 The samples of the type inspection shall be randomly taken from qualified finished products, and the samples of the type inspection shall not be delivered to the ordering party as qualified products.8 Marking, Packaging, Transportation and Storage8.1 Marking 8.1.1 Each heat pump water heater shall have a durable nameplate fixed on an obvious place. The nameplate shall clearly mark the following items, and shall also mark the relevant contents required by GB 4706.32 and GB/T 5296.2. 8.1.2 The heat pump water heaters shall be provided with signs indicating the working conditions, such as. control switches and knobs, and other signs indicating the rotation direction; be attached with circuit diagrams at appropriate locations. 8.1.3 On the water storage tank of the split-type heat pump water heaters, there shall be a durable nameplate fixed on an obvious place. The nameplate shall clearly indicate the following items. 8.1.4 The heat pump water heaters shall have a registered trademark. 8.1.5 Packaging signs and packaging boxes shall be clearly marked with. 8.2 Packaging 8.2.1 Before packaging, the heat pump water heaters shall be cleaned and dried. 8.2.2 The packaging of the heat pump water heaters shall comply with the requirements of 5.10. 8.3 Transportation and Storage 8.3.1 During the transportation and storage, the heat pump water heaters shall be protected from severe vibration, collision, dumping, rain and snow, and chemical corrosion. 8.3.2 The environmental conditions for the product storage shall comply with the relevant stipulations of GB/T 4798.1.The products shall be stored in a dry and ventilated warehouse with no corrosive and harmful gases around. 8.3.3 After the package is opened, if the product still needs to be stored, it shall be re- packaged. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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