GB19577-2024
Minimum allowable values of the energy efficiency and energy efficiency grades for heat pumps and water chillers
热泵和冷水机组能效限定值及能效等级
GB 19577-2024 is a current mandatory Chinese national standard for Minimum allowable values of the energy efficiency and energy efficiency grades for heat pumps and water chillers. It appears in the Construction compliance cluster with a energy efficiency focus and has an implementation date of Feb 1, 2025.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to a comprehensive range of heat pumps and water chillers, including vapor compression cycle packages, low ambient temperature air source heat pumps, water (ground) source heat pumps, lithium bromide absorption chillers, and indirect evaporative cooling chillers. It is mandatory for all manufacturers and importers targeting the Chinese HVAC market. The standard establishes the energy efficiency limits and grading criteria, replacing four previous national standards (GB 19577-2015, GB 29540-2013, GB 30721-2014, and GB 37480-2019).
Technical requirements
The standard classifies energy efficiency into 3 grades, where Grade 1 represents the highest efficiency and Grade 3 represents the minimum allowable values (mandatory market access threshold). For vapor compression cycle chillers, a dual-channel evaluation system is employed, requiring compliance via either the Integrated Part Load Value (IPLV) or the Coefficient of Performance (COPc). Different metrics are mandated for specific technologies: Seasonal Performance Factors (CSPF, HSPF, APF) are required for air source and low ambient temperature units, while annual metrics (ACCOP, ACOP, AEER) are specified for data center chillers and water-source units. Products manufactured or imported after the implementation date must strictly adhere to these minimum allowable values. Additionally, units utilizing electric auxiliary heating must feature manual override capabilities and clear status indicators. The measured and nominal energy efficiency values must strictly align with the declared grade's parameters.
Testing methods
Testing procedures are primarily defined through references to foundational product standards such as GB/T 18430 and GB/T 10870 for vapor compression cycles, and GB/T 25127 for low ambient temperature heat pumps. The standard introduces a seasonal performance calculation method (detailed in Appendix A) specifically for small air-cooled comfort chillers (CC ≤ 50 kW). This involves testing at four distinct load points (100%, 75%, 50%, 25%) and calculating the Cooling Seasonal Performance Factor (CSPF) using specific temperature bin distributions and interpolation methods. Manufacturers must ensure their testing protocols account for these seasonal load variations and part-load conditions.
FAQs
What products are regulated under GB 19577-2024?
The standard applies to a wide range of equipment, including vapor compression cycle water chilling (heat pump) packages, low ambient temperature air source heat pumps, water (ground) source heat pumps, lithium bromide absorption water chillers, high temperature heat pumps, indirect evaporative cooling chillers, and integrated water chilling packages.
Are there any updates from the previous version of GB 19577-2024?
This version is a consolidation that replaces four older standards (GB 19577-2015, GB 29540-2013, GB 30721-2014, and GB 37480-2019). It introduces updated energy efficiency grades, revised technical requirements, and new testing methodologies for various heat pump and chiller categories.
How does GB 19577-2024 relate to international ISO standards?
The standard establishes a domestic mandatory framework with a 3-tier grading system and specific implementation timelines for the Chinese market. Manufacturers must ensure their products meet the Grade 3 minimum allowable values to be legally sold in China, utilizing the specific calculation and testing methods outlined in the referenced GB/T and JB/T standards.
The summary above provides a high-level overview of GB 19577-2024. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 19577-2024 today to access all detailed parameter tables, grading thresholds, and testing procedures.
Applicability hints
- Type
- Management
- CCS
- F01
- ICS
- 27.010
- Competent department
- Standardization Administration of China
- Technical committee
- National Technical Committee on Energy Fundamentals and Management of Standardization Administration of China
Relationships
Replaces:GB 19577-2015, GB 29540-2013, GB 30721-2014, GB 37480-2019