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Excluded is the installation of a new service panel or sub-panel. If necessary, a new circuit may be added to the existing service panel or sub-panel. Testing and balancing of refrigerant, cooling, heating circuits, and air handling systems. This classification also allows the licensee to perform installation, alteration, and repair of ventilation systems includes duct work, air filtering devices, water treatment devices, pneumatic or electrical controls, and control piping. Dry systems include gas fired furnaces and space heaters. “Wet” systems include steam or hot water boilers and coils, or baseboard convectors, and are limited to 30 PSIG operating pressure of 220° F for hot water and 15 PSIG operating pressure for steam. This classification also allows the licensee to perform installation, alteration, and repair of heating systems of “wet”, “dry” or radiant type.

C-79 Commercial Air Conditioning and Refrigeration Contractor Including SolarĪrizona Commercial Air Conditioning Contractors may install, alter, and repair refrigeration and evaporative cooling systems.

Arizona residential appliance installer license prep class for apple download free