Installation of water supply systems
This class includes:
- installation of water supply, sewage and sanitary equipment and pipes in buildings and other construction projects, installation of fire-fighting and lawn sprinkler systems
- operation of assembled pipelines Excludes:
- installation of electric underfloor heating systems, see 43.21.1
Installation of heating, gas supply and air-conditioning systems
This class includes:
- installation of heating systems (electric, gas), heating, cooling equipment, non-electric solar collectors, ventilation and air-conditioning equipment and pipes, gas supply and steam pipes in buildings and other construction sites
- commissioning of assembled pipelines.
Excludes:
- installation of electric underfloor heating systems, see 43.21.1