GB/T 15765-2021 in English
VALIDHermetic motor-compressors for room air conditioners
- Issued on:2021-05-21
- Implemented on:2021-12-01
- File Format:PDF
- Delivery:Via email within 5 business days
$359.00
《GB/T 15765-2021房间空气调节器用全封闭型电动机-压缩机》由TC46（全国家用电器标准化技术委员会）归口，TC46SC8（全国家用电器标准化技术委员会家用电器用主要零部件分会）执行，主管部门为中国轻工业联合会。
Introduction
Core changes and technological innovations of the standard
| Comparison dimensions | 2014 version | 2021 version |
|---|---|---|
| Refrigerant type | Including R407C | Added R32/R290, deleted R407C |
| Energy efficiency index | Secondary energy efficiency requirements | Annual energy consumption efficiency (APF) test method |
| Test conditions | Single condition | Dual operating conditions (C1/C2) are optional |
Details of key performance requirements
Energy efficiency improvement path
The standard divides compressors into 7 intervals according to cylinder volume. Rotary compressors and Scroll compressors must meet the following requirements:
- R32 model energy efficiency limit increased by 4.2% year-on-year
- Variable frequency compressors need to test dual operating efficiency at 50%-100% load
Noise control technology
The semi-anechoic chamber method is used for testing. The limits of compressors with different structures are different:
| Type | 60Hz limit (dB) | 90Hz limit (dB) |
|---|---|---|
| R32 rotor type | 65-83 | - |
| Scroll type | 63-81 | +6dB |
Implementation Suggestions
Enterprise response strategies
- Establish a refrigerant switching production line transformation plan
- Upgrade the APF test system to meet the requirements of Appendix A
- Optimize the variable frequency compressor control algorithm to cope with multi-condition testing
Main points of quality control
Key monitoring:
- Residual moisture ≤1200mg (＞75cm³ model)
- Impurity content ≤240mg (＞75cm³ model)
- Energy efficiency attenuation ≤5% after 2000h accelerated life test
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