2022 NAICS national industry in sector 31-33 Manufacturing
333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
NAICS 333415 is the US industry code for air-conditioning and warm air heating equipment and commercial and industrial refrigeration equipment manufacturing. This U.S.
- Code
- 333415 (2022 NAICS)
- Title
- Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing
- Part of
- Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing
- SBA small business limit
- Up to 1,250 employees
- Closest UK SIC
- 28131, 28132, 28150 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in (1) manufacturing air-conditioning (except motor vehicle) and warm air furnace equipment and/or (2) manufacturing commercial and industrial refrigeration and freezer equipment.
Examples Census gives
- Air-conditioning and warm air heating combination units manufacturing
- Air-conditioning compressors (except motor vehicle) manufacturing
- Air-conditioning condensers and condensing units manufacturing
- Dehumidifiers (except portable electric) manufacturing
- Heat pumps manufacturing
- Humidifying equipment (except portable) manufacturing
- Refrigerated counter and display cases manufacturing
- Refrigerated drinking fountains manufacturing
- Snow making machinery manufacturing
- Soda fountain cooling and dispensing equipment manufacturing
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Manufacturing motor vehicle air-conditioning systems and compressors are classified in Industry 336390, Other Motor Vehicle Parts Manufacturing.
- Manufacturing household-type refrigerators and freezers are classified in Industry 335220, Major Household Appliance Manufacturing.
- Manufacturing portable electric space heaters, humidifiers, and dehumidifiers are classified in Industry 335210, Small Electrical Appliance Manufacturing.
- Manufacturing heating boilers, heating stoves, floor and wall mount furnaces, and electric wall and baseboard heating units are classified in U.S. Industry 333414, Heating Equipment (except Warm Air Furnaces) Manufacturing.
- Manufacturing furnace air filters are classified in U.S. Industry 333413, Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing.
Activities listed under 333415
The Census index assigns these 34 activities to this code. If your business matches one, this is your code.
- Air-conditioners, unit (e.g., motor home, travel trailer, window), manufacturing
- Air-conditioning and warm air heating combination units manufacturing
- Air-conditioning compressors (except motor vehicle) manufacturing
- Air-conditioning condensers and condensing units manufacturing
- Air-conditioning equipment (except motor vehicle) manufacturing
- Beer cooling and dispensing equipment manufacturing
- Coolers, refrigeration, manufacturing
- Coolers, water, manufacturing
- Cooling towers manufacturing
- Counters and display cases, refrigerated, manufacturing
- Dehumidifiers (except portable electric) manufacturing
- Display cases, refrigerated, manufacturing
- Drinking fountains, refrigerated, manufacturing
- Electric warm air (i.e., forced air) furnaces manufacturing
- Evaporative condensers (i.e., heat transfer equipment) manufacturing
- Fountains, refrigerated drinking, manufacturing
- Freezing equipment, industrial and commercial-type, manufacturing
- Furnaces, warm air (i.e., forced air), manufacturing
- Heat pumps manufacturing
- Heating and air-conditioning combination units manufacturing
- Heating equipment, warm air (i.e., forced air), manufacturing
- Humidifying equipment (except portable) manufacturing
- Ice making machinery manufacturing
- Laboratory-type freezers manufacturing
- Lockers, refrigerated, manufacturing
- Refrigerated lockers manufacturing
- Refrigeration compressors manufacturing
- Refrigeration equipment, industrial and commercial-type, manufacturing
- Refrigeration units, truck-type, manufacturing
- Room air-conditioners manufacturing
- Showcases, refrigerated, manufacturing
- Snow making machinery manufacturing
- Soda fountain cooling and dispensing equipment manufacturing
- Water (i.e., drinking) coolers, mechanical, manufacturing
SBA size standard for 333415
To count as a small business for SBA loans and federal contracts under NAICS 333415, your business (including affiliates) must not exceed 1,250 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2813, 2815, 2819), so treat them as a starting point and check the definition.
- 28131Manufacture of pumpsUK SIC
- 28132Manufacture of compressorsUK SIC
- 28150Manufacture of bearings, gears, gearing and driving elementsUK SIC
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.