Chapter 84 is the core chapter in the HS classification system covering mechanical appliances, machinery and their parts, including power machinery, pumps, fans, air conditioning equipment, refrigeration equipment, lifting and handling machinery, office equipment, etc. The classification principle for parts of this chapter is: parts that are solely or principally used for a certain type of machine, if not named in other headings, are classified under the parts heading of that machine. Parts of air conditioners under heading 8415 follow this principle. Heading 8415 covers air conditioning machines, including window type, wall-mounted type, cabinet type, central air conditioning and other forms of air conditioning equipment, as well as air conditioning machines with refrigeration devices. Goods under this heading must be able to regulate temperature and humidity and have air circulation functions. As its subheading, 841590 specifically refers to parts used for air conditioners under 8415, such as evaporators, condensers, compressors (if not separately named), fan motors, etc. First 2 digits 84: indicates Chapter 84, belonging to the category of mechanical appliances and parts. Digits 3-4 15: indicates heading 8415, i.e., air conditioning machines. Digits 5-6 90: indicates subheading 841590, i.e., parts of air conditioners. Note: under heading 8415 there are also 841510 (window or wall type air conditioners), 841520 (air conditioners for vehicles), 841581 (other air conditioners with cooling capacity ≤ 4,000 kcal/h), etc., while 841590 specifically refers to parts and does not distinguish complete machine types. The goods are parts of air conditioners, not complete machines. According to General Rules 1 and 6 for HS classification, if parts are solely or principally used for air conditioners under 8415 and are not more specifically named in other headings, they should be classified under 841590. The adjacent 8414 (fans, blowers) or 8418 (refrigeration equipment) may involve similar parts, but if the parts are solely used for air conditioners, they are preferentially classified under 841590.

Product name: The specific name of the declared goods, such as “evaporator for air conditioners”, “condenser for air conditioners”, etc., and must be consistent with the actual item. Use: Explain that the part is solely used for air conditioners, such as “used in air conditioner refrigeration system”, “used in air conditioner air circulation”, etc. Material: The main material of the declared part, such as copper, aluminum, steel, plastic, etc., which affects classification and tariff rates. Brand: Fill in the brand of the part; if there is no brand, fill in “no brand”, which affects intellectual property and customs inspection. Model: Fill in the model of the part to facilitate customs identification and consistency with enterprise filing. Specifications and dimensions: Fill in specifications and parameters such as dimensions and weight of the part, such as “length 30cm × width 20cm × height 10cm”. Whether solely used for air conditioners: Clearly declare whether the part is solely used for air conditioners under 8415; this is key to classification. Product name: evaporator for air conditioners; Use: solely used for split air conditioner refrigeration system; Material: copper tubes and aluminum fins; Brand: no brand; Model: EV-123; Specifications and dimensions: length 50cm × width 30cm × height 20cm; Whether solely used for air conditioners: yes. Misclassifying general parts (such as screws, gaskets) under 841590; they should be classified under corresponding headings such as 7318. Misreporting complete air conditioners as parts; attention must be paid to distinguishing complete machines from parts. Failure to provide proof of sole use for air conditioners leads customs to question the classification.

The core basis for classification is: whether the part is solely or principally used for air conditioners under 8415 and is not more specifically named in other headings. If the part is general-purpose, such as standard screws, bearings, etc., it should be classified under the corresponding general parts heading. If the part is solely used for air conditioners, such as evaporators, condensers, throttling devices, etc., it is classified under 841590. At the same time, reference should be made to the Explanatory Notes to the Harmonized Commodity Description and Coding System for parts of 8415. 8414 Fans, blowers: 8414 covers independent fans and blowers, while 841590 covers fan parts solely used for air conditioners. If the fan is solely used for air conditioners, it should be classified under 841590; if it is a general-purpose fan, it is classified under 8414. 8418 Refrigeration equipment: 8418 covers refrigerators, freezers and other refrigeration equipment and their parts, while 8415 covers air conditioners. If the part is solely used for air conditioners, it is classified under 841590; if solely used for refrigeration equipment, it is classified under 8418. 8479 Other machines: 8479 is for machines not otherwise named; if a part cannot be classified under 8415, it may be classified under 8479. However, parts solely used for air conditioners should preferentially be classified under 841590. 8539 Electric heating elements: If an electric heating element for air conditioners is an independent electric heating element, it may be classified under 8539; if it is a part solely used for air conditioners, it is classified under 841590. Is the part solely used for air conditioners under 8415? Is the part more specifically named in other headings? Is the part a general-purpose item? Are sufficient declaration elements such as use and material provided? Is it confused with the classification of complete machines?

How can it be determined whether a part should be classified under 841590? First confirm whether the part is solely or principally used for air conditioners under 8415. If it is solely used for air conditioners and is not more specifically named in other headings, it is classified under 841590. If the part is general-purpose, such as standard screws, it should be classified under the corresponding general parts heading. Under which code should a compressor for air conditioners be classified? If the compressor is solely used for air conditioners and is not named under 8414, it is usually classified under 841590. However, if the compressor is an independent refrigeration compressor, it may be classified under 8414. Judgment should be made based on the specific structure and use, and reference to the heading notes is recommended. What are common errors in declaration elements for 841590? Common errors include: product name too general (such as only writing “air conditioner parts”), unclear use description, inaccurate material filling, omitted brand, incorrect model, etc. These errors may lead customs to question the classification or delay customs clearance. How are air conditioner parts distinguished from complete machines? A complete machine is a fully assembled air conditioner with functions such as cooling, heating, and air circulation; parts are components that make up the complete machine, such as evaporators, condensers, etc. If imported components already constitute the essential character of a complete machine, they may be classified as a complete machine. How are parts under 841590 and 8418 distinguished? 841590 is for air conditioner parts, and 8418 is for refrigeration equipment parts. The key to distinction is which type of equipment the part is solely used for. If solely used for air conditioners, it is classified under 841590; if solely used for refrigerators, freezers, etc., it is classified under 8418. Where can the tariff rate for 841590 be checked? It can be checked in China Customs' Import and Export Tariff or through the General Administration of Customs website or the Single Window. Tariff rates are adjusted according to national policies, and the latest version should prevail. What documents are required to import air conditioner parts? Usually contracts, invoices, packing lists, bills of lading, customs declarations, declaration elements, etc. are required. If a brand is involved, an authorization letter is required; if 3C certification is involved, relevant certificates are required. If parts under 841590 are used for vehicle air conditioners, under which code should they be classified? Complete vehicle air conditioners are classified under 841520, but if their parts are solely used for vehicle air conditioners, they may still be classified under 841590. Judgment should be made based on whether the parts are solely used for vehicle air conditioners and whether they are named in other headings.