GB/T 20108-2017Low temperature unitary air conditioner (English PDF)

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 20108-2006 "low temperature unit type air conditioner". Compared with GB/T 20108-2006, the main changes are as follows.

--- increase the cooling capacity, cooling power consumption, the annual energy efficiency ratio (AEER), air volume, standard air volume, cold air ratio definition (see 3.2, 3.3, 3.5, 3.6, 3.7, 3.8);

- the definition of terminology for the removal of cryogenic conditions;

- modified type classification (see 4.1, 4.2);

--- modified the basic parameters (see 4.3.1, 4.3.2);

- Increased air volume, condensate and condensate removal, yearly energy efficiency (AEER) test conditions and test requirements (see 4.3.3, 5.3.7, 5.3.8, 5.3.13, 6.3.11);

- increased water pressure drop, annual energy efficiency ratio, cold wind ratio requirements and limits (see 5.3.12, 5.3.13, 5.3.14);

- modified general requirements and safety requirements (see 5.1, 5.2);

--- increase the instrument type and accuracy, test conditions parameters of the reading tolerance (see 6.1.4,6.1.5,6.1.6,6.1.7);

- modified test requirements (see 6.2);

- the removal of energy efficiency and minimum load conditions and their corresponding test requirements;

- modified factory inspection and sampling inspection requirements (see 7.1, 7.2);

- modified mark, packaging, transport and storage requirements (see 8.1, 8.2, 8.3);

--- modified the low temperature unit type air conditioner model number in Appendix A (see Appendix A);

- increase the urban temperature distribution coefficient (see Appendix B).

1 Scope

This standard specifies the terms and definitions, types, types and basic parameters of low temperature unit air conditioners (hereinafter referred to as "low temperature air conditioners"), Requirements, test methods, inspection rules, marking, packaging, transportation and storage.

This standard applies to the nominal cooling capacity greater than or equal to 7000W, for the process environment, the inlet temperature range of 5 °C ~ 18 °C low Temperature unit air conditioner.

2 Normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 191 packaging and storage icon

GB/T 2828.1 Sampling inspection procedures Part 1: Batch inspection sampling plan for retrieval by quality limit (AQL)

GB/T 6388 shipping package collection and delivery mark

GB/T 13306 signs

GB/T 17758-2010 Elemental air conditioners

GB 25130 Unit type air conditioner safety requirements

JB/T 7249 refrigeration equipment terminology

3 Terms and definitions

The following terms and definitions are defined in JB/T 7249 and are applicable to this document.