T/CAS 514-2021 Active Group standards

T/CAS 514-2021 Noise evaluation requirements for home multi-unit air conditioning (heat pump) systems

Publish Date: 2021-07-15 Implement Date: 2021-07-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CAS 514-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Light industry, culture, and daily necessities

ICS Name: Home refrigeration equipment

Publish Date: 2021-07-15

Implement Date: 2021-07-15

Scope

Scope: This standard specifies the term definitions, noise and sound quality requirements, test methods, and evaluation requirements for household multi-unit air conditioners (heat pumps) (hereinafter referred to as "units") during operation. This standard applies to air-cooled units with a nominal cooling capacity of 8kW to 50kW and an indoor unit nominal external static pressure not exceeding 30Pa; other similar-purpose multi-unit air conditioners (heat pumps) can be implemented as a reference. Main technical content: 1. Scope: This standard specifies the term definitions, noise and sound quality requirements, test methods, and evaluation requirements for household multi-unit air conditioners (heat pumps) (hereinafter referred to as "units") during operation. This standard applies to air-cooled units with a nominal cooling capacity of 8kW to 50kW and an indoor unit nominal external static pressure not exceeding 30Pa; other similar-purpose multi-unit air conditioners (heat pumps) can be implemented as a reference. 2. Normative reference documents: The following documents are essential for the application of this document. For all dated reference documents, only the version dated at the time is applicable to this document. For undated reference documents, the latest version (including all amendment sheets) is applicable to this document. - GB/T 3785.1–2010: Electroacoustics – Sound level meters – Part 1: Specifications - GB/T 17758–2010: Packaged air conditioners - GB/T 18837–2015: Multi-unit air conditioners (heat pumps) - IEC TS 60318-7:2017: Electroacoustics – Simulators of the human head and ear – Part 7: Head and torso simulators for air-conduction hearing aids measurement 3. Terms and definitions: The terms and definitions defined in GB/T 17758 and GB/T 18837, as well as the following terms and definitions, are applicable to this document. 3.1 Power-on load rate: The ratio of the sum of the nominal cooling capacities of all operating indoor units to the nomi