NIC 4322—Plumbing, heat and air-conditioning installation

Where 4322 sits

1. F Construction
2. 43 Specialized construction activities
3. 432 Electrical, plumbing and other construction installation activities
4. 4322 Plumbing, heat and air-conditioning installation

Contains 5 narrower codes

• 432201 Installation, repair and maintenance of plumbing for water, gas, and sanitation equipment (excluding hospitals gas fittings)
• 432202 Installation, repair and maintenance of gas fittings and medical gas distribution systems in hospitals
• 432203 Installation, repair and maintenance of ventilation, air-conditioning equipment and heating systems (electric, gas, and oil), furnaces, cooling towers, non-electric solar energy collectors, etc.
• 432204 Installation, repair and maintenance of all sprinkler systems including lawn and fire systems
• 432299 Other plumbing, heating, and air-conditioning installation, repair and maintenance activities n.e.c.

What 4322 includes

• This class includes the installation, repair and maintenance of plumbing, heating and air-conditioning systems, including additions and alterations.

What 4322 excludes

• Installation of electric baseboard heating, see 4321
• Camera inspections in air ducts, water and gas pipes, and other liquids without repair or installation, see 7120

4322 in other systems