Nevada Administrative Code › Chapter 624 - Contractors › CLASSIFICATIONS › Section 624.380 - Classification C-21: Refrigeration and air-conditioning; subclassifications

Current through June 11, 2024
1. The Board will grant to qualified
			 applicants a license in the specialty of refrigeration and air-conditioning.
			 The Board designates such a license as a "classification C-21" license. A
			 person who holds a classification C-21 license may perform any of the work
			 authorized for the subclassifications of the classification C-21
			 license.
2. Work authorized by a
			 classification C-21 license is not incidental or supplemental to the
			 performance of any other work which may be performed by a specialty
			 contractor.
3. The
			 subclassifications of the classification C-21 license and the work authorized
			 for persons licensed in the respective subclassifications are:
(a) REFRIGERATION (subclassification C-21a):
			 The construction, erection and installation of devices, machinery and units for
			 the control of air temperatures below 50°F in refrigerators, refrigerated
			 rooms and insulated spaces, and installation of any related insulation, ducts,
			 blowers, registers, controls over humidity and thermostatic controls, lines for
			 supplying natural gas from the unit to the point of connection in the existing
			 line for natural gas at the meter or at any point thereafter, electrical
			 service from the unit's device to protect against excessive current to the main
			 electrical panel, but not the installation of other gas or electric services
			 for the devices, machinery or units.
(b) AIR-CONDITIONING (subclassification
			 C-21b): The installation, repair, service and maintenance of equipment,
			 devices, machinery, units and related ductwork which use evaporation,
			 refrigeration, boilers or combustion for the control of air temperatures in
			 structures, including, without limitation, any humidity and thermostatic
			 controls in connection with any such equipment, devices, machinery, units or
			 ductwork.
(c) SHEET METAL
			 (subclassification C-21c): The fabrication and installation of sheet metal,
			 including, without limitation, cornices, flashings, gutters, leaders,
			 downspouts for rainwater, pans, food service equipment, ducts, louvres,
			 patented chimneys, flues and metal roof systems, but not the fabrication or
			 installation of equipment which uses refrigeration as an integral part of the
			 system.
(d) MAINTENANCE
			 (subclassification C-21d): The repair and replacement of any parts of existing
			 units or systems of air-conditioning and refrigeration, including the
			 compressors, motors, relays, coils, heat exchangers and other appurtenances and
			 equipment, but not the replacement of complete condenser assemblies on remote
			 systems, air handlers or any work that may alter the design of an existing
			 system.
(e) SOLAR AIR-CONDITIONING
			 (subclassification C-21e): The installation of the collectors, piping, storage
			 and other equipment used in the conversion of solar energy to energy used for
			 the control of air temperatures.
(f) CHILLED AND HOT WATER SYSTEMS
			 (subclassification C-21f): The installation of boilers, chillers, coils,
			 cooling towers, piping, pumps, storage tanks, valves and other equipment used
			 in the production and transfer of water for the control of
			 temperatures.
(g) INDUSTRIAL PIPING
			 (subclassification C-21g): The fabrication, installation, repair and removal of
			 piping and equipment used for the transmission of water, steam, gas, chemicals,
			 food and other substances for industrial uses.