ICNEA 4920—Plumbing and equipment installation

Where 4920 sits

1. E Construction industry
2. 49 Construction and installation industry
3. 492 Plumbing and equipment installation
4. 4920 Plumbing and equipment installation

What 4920 includes

• Including the installation activities of the following pipelines and equipment：
• Installation service of building tap water system
• Building drainage system installation service
• Building gas system installation service
• Building heating system installation service
• Installation services of building air-conditioning equipment and ventilation equipment systems
• Plumbing installation services for other buildings
• Refers to the installation activities of pipelines, heating and air-conditioning systems.

What 4920 excludes

• Installation and construction of urban drainage system, included in 4852 (Pipeline engineering construction)
• Outdoor (field) gas and heating pipeline construction, included in 4852 (pipeline engineering construction)

4920 in other systems