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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 23137-2008 Heat pump water heater for household and similar application, and the following main technical changes have been made with respect to GB/T 23137-2008.
——Definitions of the terms “inlet water temperature” and “outlet water temperature” are modified (see 3.13 and 3.14; 3.13 and 3.14 of Edition 2008); the term “annual performance factor” is added (see 3.23); and the terms and related definitions of “max pressure of water side” and “cavity of water storage tank” are deleted (see 3.21a) and 3.21e) of Edition 2008);
——The classification based on the control mode of compressor is added, the recommended preferred values of rated capacity and rated heating water capacity of water storage tank of heat pump water heater are modified, and the model designation content is modified (see Clause 4; Clause 4 of Edition 2008);
——The working environment temperature range of heat pump water heater, the operating condition requirements of compressor of heat pump water heater during operation, the waterproof grade requirements of heat pump water heater used in bathroom, the high-temperature heating performance requirements, the heating capacity requirements under automatic defrosting condition, the low-temperature heating capacity requirements, the annual average heating capacity requirements of heat pump, the requirements of annual performance factor of air-source heat pump water heater and noise limit of water-source heat pump water heater are added (see 5.1.1, 5.1.4, 5.2.6, 5.5.5, 5.5.6, 5.5.7, 5.5.8, 5.5.9 and 5.8);
——The requirements of inlet water quality, electromagnetic compatibility, thermal insulation performance and noise limit of air-source heat pump water heater are modified (see 5.1.2, 5.1.3, 5.7.1 and 5.8; 5.1.2, 5.1.3, 5.7.1 and 5.8 of Edition 2008);
——The test method of noise is modified (see 6.11; 6.11 of Edition 2008);
——The contents of marking are modified (see 8.1.1 c); 8.1.1 c) of Edition 2008);
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——The Annex A of Edition 2008 is deleted; the test and calculation method of annual performance factor of air-source heat pump water heater are added (see Annex A); the test method of heating capacity of unsteady heat pump is added (see Annex B); the test method for testing water temperature in water tank is added (see Annex C).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This standard was proposed by the China National Light Industry Council.
This standard is under the jurisdiction of National Technical Committee on Household Electric Appliances of Standardization Administration of China (SAC/TC 46).
The previous edition of this standard is as follows:
—GB/T 23137-2008.
Heat pump water heater for household and similar application
1 Scope
This standard specifies the terms and definitions, product classification, technical requirements, test methods, inspection rules, as well as 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, adopting vapor compression refrigeration cycle, taking air or water as heat source for providing hot water. This standard may be used as a reference for heat pump water heaters for other heat sources or purposes.
This standard is not applicable to heat pump water heater for industrial purposes.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including all amendments) applies.
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 methods - Test Ka: Salt mist
GB/T 2624
(All parts) Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 3785.1-2010 Electroacoustics - Sound level meters - Part 1: Specifications
GB 4343.1 Electromagnetic compatibility - Requirements for household appliances electric tools and similar apparatus - Part 1: Emission
GB 4706.32 Safety of household and similar electrical appliances - Particular requirements for heat pumps, air-conditioner and dehumidifier
GB/T 4798.1 Environmental conditions existing in the application of electric and electronic products - Section 1: Storage
GB/T 4798.2 Environmental conditions existing in the application of electric and electronic products - Section 2：Transportation
GB/T 4857.7 Packaging - Basic tests for transport packages - Part 7: Sinusoidal vibration test method at constant frequency
GB/T 4857.10 Packaging - Basic tests for transport packages - Part 10: Sinusoidal vibration test method using at variable vibration frequency
GB/T 5296.2 Instructions for use of products of consumer interest - Part 2: Household and similar electrical appliances
GB 5749 Standards for drinking water quality
GB/T 7725 Room air conditioners
GB/T 9286 Paints and varnishes - Cross cut test for films
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 - Limits for harmonic current emissions (equipment input current ≤ 16A 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 conditioners
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
heat pump water heater
device using vapor compression refrigeration cycle driven by motor to transfer heat from air or water to heated water in order to produce domestic hot water
3.2
air-source heat pump water heater
heat pump water heater with ambient air as heat source
3.3
water-source heat pump water heater
heat pump water heater with water (including water from wells, lakes, seas or rivers, water circulating in underground coils, and usable water for other purposes) as heat source
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3.4
instantaneous heat pump water heater
heat pump water heater in which the temperature set by user is reached when the initial cold water flows through the heat exchanger inside the heat pump water heater for once
3.5
circulating heat pump water heater
heat pump water heater in which the setting temperature is reached when the initial cold water flows through the heat exchanger inside the heat pump water heater for many times
3.6
static heat pump water heater
heat pump water heater in which the water is in direct or indirect contact with the heat exchanger and the setting temperature is reached gradually via free convection at the heated side of water
3.7
auxiliary heat source
heat sources other than the heat pump used to heat water in the heat pump water heater, which may be used simultaneously with the heat pump or independently for heating
Note: Auxiliary heat sources include heat sources formed by heating with electric energy, gas, solar energy, etc.
3.8
packaged heat pump water heater
heat pump water heater of which the main parts and components such as compressor, evaporator, condenser and water tank are in the same tank
3.9
split-type heat pump water heater
heat pump water heater of which the main parts and components such as compressor, evaporator, condenser and water tank are not in the same tank
3.10
water-loop heat pump water heater
heat pump water heater using water circulating in common pipeline as heat source
3.11
ground-water heat pump water heater
heat pump water heater using water from wells, lakes, seas or rivers as heat source
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3.12
ground-loop heat pump water heater
heat pump water heater using water circulating in underground coil as heat source
3.13
inlet water temperature
T1
water temperature measured at the water inlet before the instantaneous heat pump water heater starts heating,
and average temperature of water measured at the inlet and outlet of the water tank after the water injection of the circulating heat pump water heater and the static heat pump water heater is completed
3.14
outlet water temperature
T2
water temperature measured at the water outlet of the system when the instantaneous heat pump water heater is heated stably;
the average temperature of water measured after heating the circulating heat pump water heater and the static heat pump water heater
3.15
heat pump heating capacity
Q
heat provided to heated water per unit time when the heat pump operates under nominal and specified conditions
3.16
heat pump heating power input
P
total power input of the heat pump when operating under nominal and specified conditions
3.17
coefficient of performance
COP
ratio of heat pump heating capacity to heat pump heating power input when the heat pump operates under nominal and specified conditions
3.18
hot-water output rate
μ
ratio of actual hot-water output capacity to rated capacity under rated conditions
3.19
heating water capacity
U
capability to heat low-temperature water at specified temperature to high-temperature water at specified temperature per unit time when the heat pump operates under nominal conditions and specified conditions
3.20
additional electrical heating power input
input power measured when the auxiliary electric heating device operates if the heat pump water heater operates under specified condition
3.21
annual average heating capacity
AC
sum of the heat provided to the heated water in the whole year when the heat pump water heater performs heating operation under specified conditions
3.22
annual average heating input
AP
sum of power input provided to the heated water in the whole year when the heat pump water heater operates for heating under specified conditions
3.23
annual performance factor
APF
ratio of the sum of heat supplied to the heated water by the heat pump water heater in the whole year to the sum of electricity consumption in the same period
3.24 Other terms
3.24.1
capacity of water storage tank
maximum capacity of water storage tank used for storing hot water under specified conditions
3.24.2
pressure-resistant water storage tank
water storage tank with a sealed tank body, which is not in contact with the atmosphere and can bear a certain pressure
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3.24.3
rated pressure of water
water pressure of heat pump water heater specified by the manufacturer
4 Product classification
4.1 Classification types
4.1.1 Classified by heat source mode:
a) air-source heat pump water heater;
b) water-source heat pump water heater.
4.1.2 Classified by the types of power source:
a) single-phase power supply (220V/50Hz);
b) three-phase power supply (380V/50Hz);
c) other types of power supply.
4.1.3 Classified by heating mode:
a) instantaneous heat pump water heater;
b) circulating heat pump water heater;
c) static heat pump water heater.
4.1.4 Classified by structural type:
a) packaged heat pump water heater;
b) split-type heat pump water heater.
4.1.5 Classified by the control mode of the compressor:
a) heat pump water heater with constant rotating speed (the rotating speed and capacity are constant), and its code is omitted;
b) heat pump water heater with controllable rotating speed (the rotating speed or capacity is variable), and its code is Bp.
4.2 Preferred value
4.2.1 The recommended preferred values of the rated capacity of the water storage tank of the heat pump water heater are:
80L, 100L, 150L, 200L, 300L and 400L.
4.2.2 The recommended preferred values of rated heating water capacity of the heat pump water heater are:
35L/h, 50L/h, 70L/h, 100L/h, 150L/h, 200L/h, 250L/h and 300L/h.
4.3 Model designation
Example: KFD-BpY70/150A represents an air-source split-type instantaneous heat pump water heater with variable frequency and electric auxiliary heat source, with heating water capacity of 70L/h, with capacity of water storage tank of 150L, and with manufacturer's self-defined number of A.
4.4 Basic parameters
See Table 1 and Table 2 for test conditions of heat pump water heater.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
Annex A (Normative) Annual performance factor test and calculation method of air-source heat pump water heater
Annex B (Normative) Test method for heating capacity of unsteady heat pump
Annex C (Normative) Test method for water temperature in water tank
