GB 19577-2024Minimum allowable values of energy efficiency and energy efficiency grades for heat pumps and water chillers (English PDF)

1 Scope

This document specifies the technical requirements for the minimum allowable values of the energy efficiency and energy efficiency grades for heat pumps and water chillers, describes the corresponding test methods, and clarifies the implementation of this document.

The types of heat pumps and chillers to which this document applies include water chilling (heat pump) packages using the vapor compression, low ambient temperature air source heat pump (water chilling) packages, water-source (ground-source) heat pumps, lithium bromide absorption water chillers (heaters), water-source high temperature heat pumps using the vapor compression cycle, indirect evaporative cooling water chillers, and integrated water chilling (heat pump) packages.

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 any amendments) applies.

GB/T 10870 The methods of performance test for water chilling (heat pump) packages using the vaper compression cycle

GB/T 18362 Direct-fired lithium bromide absorption water chiller (heater)

GB/T 18430.1 Water chilling (heat pump) packages using the vapor compression cycle - Part 1: Water chilling (heat pump) packages for industrial & commercial and similar application

GB/T 18430.2 Water chilling (heat pump) packages using the vapor compression cycle - Part 2: Water chilling (heat pump) packages for household and similar application

GB/T 18431 Steam and hot water type lithium bromide absorption water chiller

GB/T 19409 Water-source (ground-source) heat pumps

GB/T 25127.1 Low ambient temperature air source heat pump (water chilling) packages - Part 1: Heat pump (water chilling) packages for industrial & commercial and similar application

GB/T 25127.2 Low ambient temperature air source heat pump (water chilling) packages - Part 2: Heat pump (water chilling) packages for household and similar application

GB/T 25861 Water-source high temperature heat pumps using the vapor compression cycle

JB/T 12839 Integrated water chilling (heat pump) package

JB/T 12840 Air source heat pump high temperature hot air & hot water unit

JB/T 14640 Composite indirect evaporative cooling water chiller for computer and data processing room

JB/T 14642 High-leaving water temperature chiller base on dew point indirect evaporative cooling

3 Terms and definitions

For the purpose of this document, the terms and definitions defined in GB/T 18430.1,

GB/T 18430.2, GB/T 18362, GB/T 18431, GB/T 10870, GB/T 19409, GB/T 25127.1,

GB/T 25127.2, GB/T 25861, JB/T 14640, JB/T 14642 and JB/T 12839 and the following apply.

4 Energy efficiency grades

4.1 The energy efficiency grades for heat pumps and water chillers are divided into 3 grades, among which grade 1 has the highest energy efficiency.

4.2 The measured values and nominal values of the energy efficiency indicators of various types of heat pumps and water chillers shall not be less than the specified values corresponding to the energy efficiency grades in Tables 1 to 8.Among them, the indicators of energy efficiency grades for water chilling (heat pump) packages using the vapor compression adopt dual-channel evaluation indicators, i.e., select the energy efficiency value of one of the indicator systems in the comprehensive part load value (IPLV) (see Table 1) or the coefficient of performance (COPc) (see Table 2) to determine the energy efficiency grade.

5 Technical requirements

5.1 The minimum allowable values of energy efficiency for water chilling (heat pump) packages using the vapor compression, the minimum allowable values of energy efficiency for low ambient temperature air source heat pump (water chilling) packages, the minimum allowable values of energy efficiency for water-source (ground-source) heat pumps, the minimum allowable values of energy efficiency for lithium bromide absorption water chillers (heaters), the minimum allowable values of energy efficiency for water-source high temperature heat pumps using the vapor compression cycle, the minimum allowable values of energy efficiency for indirect evaporative cooling water chillers, and the minimum allowable values of energy efficiency for integrated water chilling (heat pump) packages are the indicator values corresponding to energy efficiency grade 3 in Tables 1 to 8.

5.2 For low ambient temperature air source heat pump (water chilling) packages with electric auxiliary heating, the electric auxiliary heating system shall be manually turned on and off, and its working status shall be expressed in an obvious position.

5.3 The marked values of energy efficiency for heat pumps and water chillers shall be within the range of values corresponding to their rated energy efficiency grades, and the measured values of energy efficiency shall not be less than the provisions in the corresponding product standards in Tables 1 to 8.

6 Tests and calculation methods

6.1 The energy efficiency test method for water chilling (heat pump) packages using the vapor compression shall be carried out in accordance with the relevant provisions of GB/T 18430.1 and GB/T 18430.2. The test and calculation of air-cooled comfort chillers with a nominal cooling capacity not exceeding 50 kW shall be carried out in accordance with the provisions of Annex A.

6.2 The energy efficiency test method for low ambient temperature air source heat pump (water chilling) packages shall be carried out in accordance with the relevant provisions of GB/T 25127.1 and GB/T 25127.2.

6.3 The energy efficiency test method for water-source (ground-source) heat pumps shall be carried out in accordance with the relevant provisions of GB/T 19409.

6.4 The energy efficiency test method of lithium bromide absorption water chillers (heaters) shall be carried out in accordance with the relevant provisions of GB/T 18431 and GB/T 18362.

6.5 The energy efficiency test method for water-source high temperature heat pumps using the vapor compression cycle shall be carried out in accordance with the relevant provisions of GB/T 25861 and JB/T 12840.

6.6 The energy efficiency test method for indirect evaporative cooling water chillers shall be carried out in accordance with the relevant provisions of JB/T 14642 and JB/T 14640. The dry-bulb and wet-bulb temperature distribution coefficients, used for the test conditions and calculation of the annual energy efficiency ratio (AEER) of high-leaving water temperature chillers base on dew point indirect evaporative cooling used in data centers and similar places, are tested and calculated according to the provisions for cold regions (refer to Beijing) in JB/T 14642 (referenced to Beijing).

7 Implementation of the document

Products produced or imported on the date of implementation of this document shall comply with the requirements of this document.

The sales of products produced or imported before the implementation of this document shall only be delayed until the 24th month after the implementation of this document. […]