GB/T 19232-2019Fan coil unit (English PDF)

1 Scope

This Standard specifies the terms and definitions, classification and labeling, general requirements, requirements, test methods, inspection rules, marking, packaging, transportation and storage of fan coil unit (hereinafter referred to as "unit").

This Standard applies to unit that uses externally supplied chilled or hot water to cool, heat, or separately cool and heat rooms, with a supply air volume not exceeding 3400 m³/h and an external static pressure not exceeding 120 Pa. Unit with similar applications may also refer to this Standard.

2 Normative References

The following documents are essential to the application of this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document.

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

GB/T 1040.1 Plastics - Determination of tensile properties - Part 1: General principles

GB/T 2423.3 Environmental testing - Part 2: Testing method - Test Cab. Damp heat, steady state

GB/T 2518 Continuously hot-dip zinc-coated steel sheet and strip

GB/T 3198 Aluminum and aluminum alloy foils

GB/T 3880 Aluminum and aluminum alloy plates and strips for general industrial use

GB/T 5171.1-2014 Small power motors - Part 1: General technical requirements

GB/T 9068 Determination of sound power levels for noise emitted by heating, ventilating and air conditioning equipment - Engineering method

GB/T 11253 Cold-rolled sheets and strips of carbon structural steels

GB/T 12350 Safety requirements of small power motors

GB/T 15675 Continuously electrolytically zinc/zinc-nickel alloy coated steel sheet and strip

GB/T 17791 Seamless copper and copper alloys tube for air conditioner and refrigeration equipment

GB 50016-2014 Code for Fire Protection Design of Buildings

JG/T 21-1999 Test methods for determining the performance of air cooling and air heating coils

3 Terms and Definitions

For the purposes of this Document, the following terms and definitions apply.

4 Classification and Labeling

5 General Requirements

5.1 The unit shall be in accordance with the provisions of this standard and shall be manufactured according to the drawings and technical documents approved through the prescribed procedures.

5.2 The unit's structure shall meet the following requirements.

a) The length and slope of the condensate pan shall ensure unobstructed condensate drainage and that condensate from the unit drips into the pan;

b) The unit shall be equipped with an air venting device at a location that effectively removes trapped air from the coils;

c) For units with special functions (such as antibacterial, sterilization, purification, etc.), the components enabling these functions shall meet the requirements of relevant national regulations and standards;

d) Dry fan coil unit shall be equipped with a condensate pan;

e) Heating fan coil unit may not require insulation and may not be equipped with a condensate pan.

5.3 The unit's adjustment characteristics shall meet the following requirements.

a) AC motor units and permanent magnet synchronous motor units shall be able to adjust the air volume flow rate. When three air volume flow rate levels (high, medium, and low) are provided, the ratio of the three levels should be 1 : 0.75 : 0.5 of the rated air volume flow rate.

b) For permanent magnet synchronous motor units that do not have a default setting when leaving the factory, the highest level of air volume flow rate shall be used for testing.

5.4 The power supply for the unit shall be single-phase 220V, frequency 50Hz.

5.5 The unit materials shall meet the following requirements.

a) The materials used in the unit shall be free from rust and mildew, and the use of new materials that meet environmental protection requirements is encouraged;

b) The insulation materials of the unit shall comply with the provisions of 9.3.15 in GB 50016-2014; and the bonding shall be flat and firm;

c) The materials for the main parts of the unit shall be selected according to the requirements in Table 1; and the use of high-quality materials superior to those in Table 1 is encouraged;

d) When the unit uses cold-rolled steel plates for its panels and components, its inner and outer surfaces shall be effectively rust-proofed;

e) When the unit uses ferrous metal processed parts, the surfaces shall be hot-dip galvanized and effectively rust-proofed.

5.6 The rated values of the basic specifications of general-purpose units at high speeds shall meet the requirements of Tables 2 ~ 4, respectively. […]