CNAE Brazil 43.22-3—Plumbing, ventilation and refrigeration systems

Where 43.22-3 sits

1. F Construction
2. 43 Specialized services for construction
3. 43.2 Electrical, plumbing, and other installations in buildings
4. 43.22-3 Plumbing, ventilation and refrigeration systems

Contains 3 narrower codes

• 4322-3/01 Plumbing, sanitary and gas installations
• 4322-3/02 Installation and maintenance of central air conditioning, ventilation and refrigeration systems
• 4322-3/03 Fire prevention system installations

What 43.22-3 includes

• The installation, alteration, maintenance, and repair of all types of buildings, including: • heating systems (solar collector, gas and oil), excluding electric systems. • hydraulic and sanitary equipment • gas connections • steam pipes
• The installation, alteration, maintenance, and repair of all types of buildings, including: • central cooling systems, when not performed by the manufacturer. • controlled mechanical ventilation systems, including exhaust fans
• The installation, alteration, maintenance, and repair of networks for the distribution of various gases and fluids (e.g., oxygen in hospitals)
• The installation, alteration, maintenance, and repair of fire prevention systems in all types of buildings
• Installation of heating systems (solar collector, gas and oil), excluding electric systems

What 43.22-3 excludes

• The installation and maintenance of central refrigeration systems, except industrial, when performed by the manufacturer (28.24-1)
• The installation and maintenance of solar energy collectors when performed by the manufacturer (28.21-6)
• Electrical heating equipment installations (43.21-5)
• The monitoring, including by remote means, of electronic security and fire alarm systems, including their installation and maintenance (80.20-0)

43.22-3 in other systems