GB/T 29780-2023Hermetic motor-compressors for household and similar application heat pump water heater (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

This document replaces GB/T 29780-2013 "Totally Enclosed Motor-Compressor for Heat Pump Water Heaters for Household and Similar Purposes". and Compared with GB/T 29780-2013, except for structural adjustment and editorial changes, the main technical changes are as follows:

--- Added two refrigerants, R32 and R290, and deleted the piston compressor (see Chapter 1, Chapter 1 of the 2013 edition);

---Changed the definition of coefficient of performance (see 3.2, 3.2 of the 2013 edition), added the definition of speed controllable compressor and low ambient temperature Air source heat pump water heater terms and definitions (see 3.6 and 3.7);

--- Added three classification methods. classification by speed control type, classification by air supply type, and classification by working environment temperature (see 4.3, 4.4 and 4.5);

---Changed the working environment temperature, product technical specifications, compressor segmentation method in each technical index, technical index classification method, For other technical requirements, relevant technical requirements for compressor performance coefficient classification, compressor noise classification, and speed controllable compressors have been added. Seek (see Chapter 5, Chapter 5 of the 2013 edition);

--- Added normative references to GB/T 9237 (see 5.4.4);

--- Added the normative reference document IEC 60335-2-34:2021 (see 5.4.4, Table 13, 8.1.1), deleted GB 4706.17 (see Table 15, 8.1.1 of the 2013 edition);

--- Added test methods for speed-controllable compressors (see Chapter 6);

--- Changed the type inspection and factory inspection, deleted the acceptance inspection, and added the inspection rules for speed-controllable compressors (see Chapter 7, Chapter 7 of the 2013 edition);

--- Increased the requirements for fire warning signs (see Chapter 8, Chapter 8 of the 2013 edition);

--- Added "Special requirements for motor-compressors for low ambient temperature air source heat pump water heaters" (see Appendix A).

1 Scope

This document specifies the product classification, technical requirements, test Methods, acceptance rules and requirements for marking, packaging, transportation and storage.

This document applies to domestic and similar heat pumps with refrigerants R410A, R134a, R417A, R407C, R22, R32 and R290 Design and manufacture of fully enclosed motor-compressors for water heaters (hereinafter referred to as "compressors", including rotary compressors and scroll compressors) Manufacturing, inspection, packaging, transportation and storage related personnel.

The design, manufacture, inspection, packaging, transportation and storage of similar compressors with other types of refrigerant (except R744) can refer to Use this document.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 1019 General rules for packaging of household and similar electrical appliances

GB/T 2829 Periodic inspection counting sampling procedure and table (applicable to the inspection of process stability)

GB/T 4214.1-2017 General requirements for noise test methods of household appliances and similar electrical appliances

GB/T 5773 Performance test method for positive displacement refrigerant compressors

GB/T 9237 Refrigeration system and heat pump safety and environmental requirements

IEC 60335-2-34:2021 Safety of Household and Similar Electrical Appliances Part 2-34. Particular Requirements for Motor-Compressors

3 Terms and Definitions

The following terms and definitions apply to this document.