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GB 19577-2024: Minimum allowable values of the energy efficiency and energy efficiency grades for heat pumps and water chillers
GB 19577-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
CCS F 01
GB 19577-2024
Replacing GB 19577-2015, GB 29540-2013, GB 30721-2014, GB 37480-2019
Minimum allowable values of the energy efficiency and
energy efficiency grades for heat pumps and water chillers
ISSUED ON: APRIL 29, 2024
IMPLEMENTED ON: FEBRUARY 01, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Energy efficiency grades ... 8
5 Technical requirements ... 12
6 Tests and calculation methods ... 13
7 Implementation of the document ... 14
Annex A (normative) Tests and calculation methods for the cooling seasonal
performance factor of air-cooled comfort chillers (CC ≤ 50 kW) ... 15
Minimum allowable values of the energy efficiency and
energy efficiency grades for heat pumps and water chillers
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 and 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
Under the specified standard operating conditions, the minimum allowable values of
the nominal heating coefficient of performance (COPh), low temperature heating
coefficient of performance (COPdh), heating seasonal performance factor (HSPF) and
(or) annual performance factor (APF) of low ambient temperature air source heat pump
(water chilling) packages.
NOTE: For fan-coil units, the annual performance factor (APF) is assessed for the seasonal
performance factor; for floor-heating and radiator units, the heating seasonal performance factor
(HSPF) is assessed for the seasonal performance factor.
3.3
minimum allowable values of energy efficiency for water-source (ground-source)
heat pumps
Under the specified standard operating conditions, the minimum allowable values of
the annual comprehensive coefficient of performance (ACOP) or heating coefficient of
performance (COP) of water-source (ground-source) heat pumps.
NOTE: For heat-pump units, the annual comprehensive coefficient of performance (ACOP) is
assessed; for single-heat units, the heating coefficient of performance (COP) is assessed.
3.4
minimum allowable values of energy efficiency for lithium bromide absorption
water chillers (heaters)
Under the specified standard operating conditions, the minimum allowable values of
the coefficient of performance (COP) or the maximum values of the heating source
consumption per unit cooling capacity of lithium bromide absorption water chillers
(heaters).
NOTE: For vapor units, the heating source consumption per unit cooling capacity is assessed; for
direct-fired units, the coefficient of performance (COP) is assessed.
3.5
minimum allowable values of energy efficiency for water-source high temperature
heat pumps using the vapor compression cycle
Under the specified standard operating conditions, the minimum allowable values of
the heating coefficient of performance of water-source high temperature heat pumps
using the vapor compression cycle.
NOTE: For water-source high temperature heat pumps, the heating coefficient of performance
(COPH) is assessed; for periodical feeding heat pump high temperature hot water units, the heating
coefficient of performance (COP) is assessed.
3.6
minimum allowable values of energy efficiency for indirect evaporative cooling
water chillers
Under specified standard operating conditions, the minimum allowable values of the
annual energy efficiency ratio (AEER) or energy efficiency ratio (EER) of indirect
evaporative cooling water chillers.
NOTE: For high-leaving water temperature chillers base on dew point indirect evaporative cooling
used in data centers and similar places, the annual energy efficiency ratio (AEER) is assessed; for
composite indirect evaporative cooling water chillers used in computer and data processing rooms,
the energy efficiency ratio (EER) is assessed.
3.7
minimum allowable values of energy efficiency for integrated water chilling (heat
pump) package
Under specified standard operating conditions, the minimum allowable values of the
integrated part load value (IPLVI) and nominal operating coefficient of performance
(COPI) of integrated water chilling (heat pump) packages.
NOTE: For vapor-cooled, cooling-tower and air-cooled units, the integrated part load value (IPLVI)
and nominal operating coefficient of performance (COPI) are assessed.
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.
NOTE: The specific product types of water chilling (heat pump) packages using the vapor
compression, low ambient temperature air source heat pumps (chillers), 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) package mentioned in this document are the product types mentioned in Tables 1 to 8.
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