GB/T 19409-2013water-source (ground-source) heat pumps (English PDF)

Foreword

This standard is drafted according to rules given by GB/T 1.1-2009.

This standard replaces GB/T 19049-2003 Water-source heat pumps. The main technical changes are as follows, compared with GB/T 19049-2003.

- Add the "surface water type" in type;

- Change the name of underground loop type into "buried pipe type";

- Change the "inlet-outlet water temperature difference 5°C at heat-source side under working condition of hot-cold water models" to "the combination of outlet water temperature and water flow";

- Change the heat pump from 8-gears to 2-gears, according to cold classification;

- Modify the working condition; the working condition of centrifugal units and volumetric units are determined separately;

- Add the annual coefficient of performance (ACOP) as the energy efficiency index of heat pump unit.

1 Scope

This standard specifies the terms and definitions, types and basic parameters, requirements, test methods, inspection rules, marking, packaging, transport and storage of water source (ground-source) heat pumps (hereinafter referred to as "UNIT").

This standard applies to water source heat pumps that use electromechanical compression cooling system and takes the water circulating in buried pipes or water in wells, lakes, rivers, oceans, sewage, industrial waste, or water in common pipelines as cold (hot) source.

2 Normative references

The following documents are indispensable for application of this document. For the dated documents so quoted, only dated versions apply to this document. For the undated documents so quoted, the latest versions (including all modification sheets) apply to this document.

GB/T 191 Packaging - Pictorial marking for handling of goods

GB/T 3785-1983 Electric, sonic properties and measuring methods for sound level meters

GB 4706.32 Safety of household and similar electrical appliances - Particular requirements for heat pumps, air-conditioner and dehumidifier

GB/T 5226.1 Electrical equipment of industrial machines. Part 1: General requirements

GB/T 6388 Transport package shipping mark

GB/T 10870-2001 The methods of performance test for positive displacement and centrifugal water-chilling units and heat pump

GB/T 13306 Plates

GB/T 18430.1-2007 Water chilling (heat pump) packages using the vapor compression cycle - Household and similar water chilling (heat pump) packages

GB/T 17758-2010 Unitary air conditioners

GB/T 18836-2002 Ducted air-conditioning (heat pump) units

3 Terms and definitions

4 Types and basic parameters

4.1 The types of water-to-air heat pump [Translator. hereafter abbreviated as "heat-pump"]

4.1.1 The UNITs are divided into the following according to functions;

a) Heat-pump type;

b) Single-cold type; c) Single-hot type.

4.1.2 The UNITs are divided into the following according to structure types;

a) Monolithic type; b) Separated type.

4.1.3 The UNITs are divided into the following according to fan supply types;

a) Direct blowing type;

b) Compressed air type.

4.1.4 The UNITs are divided into the following according to the type of cold (hot) source types;

a) Water-loop type;

b) Ground-water type;

c) Ground-loop type; d) Surface-water type.

5 Requirements

5.2.5 The water quality of the UNIT heat-source shall comply with requirements in Annex D of GB/T 18430.1-2007. The water that cannot meet the quality requirements shall be treated specially, or the appropriate heat exchanging equipment shall be used.