Class 5183
Applies to plumbing operations provided that the work performed is “not otherwise classified” (NOC). Employers included in Code 5183 may install, remove, or repair equipment that is used to direct gas or water supplies to a destination. This equipment includes but is not limited to piping and related fixtures, appliances, and accessories. There are no limits on the size of the pipe being repaired or installed.
Shop work associated with plumbing operations is additionally assigned to Code 5183. Code 8227 applies to a permanent yard maintained by a plumbing contractor. Refer to Code 8227 for information that distinguishes between shop and yard operations for classification purposes.
Code 5183 also applies to the pipe fitting of commercial or domestic refrigeration and non-portable air-conditioning systems, including the installation of tubing.
The installation of underground lawn sprinkler systems is included in Code 5183. Irrigation and drainage system construction operations conducted in connection with lawn sprinkler installations are classified as Code 6229. Trenching work performed by the same contractor who installs underground pipes for sprinkler systems is assigned to Code 5183 since trenching work is an integral part of the underground sprinkler installation work. Such operations may be performed using either a vibrating plow or a pipe pulling machine, which knives the ground to a depth of 12 to 18 inches and to a width comparable to that of the piping being used. The piping is then automatically inserted into the ground.
Pump or boiler installations of a domestic or residential nature are additionally included in Code 5183. Commercial or industrial pump or boiler installations are separately rated.
Additional operations included in Code 5183 are cleaning and installing beer drawing equipment, beer coil cleaning, hot water or steam furnace installations, cleaning building sewer connections using portable equipment, nonelectric thermostat installations, and installation or service of domestic water softener systems.
This classification also includes the application of non-asbestos insulating materials to various pipes and equipment including steam pipes, still pipes including oil stills, and steam vessels including boilers. It has additionally been applied to the insulation of underground pipes by a specialist contractor.
Refer to Code 8350 for the installation, service or repair of domestic or residential heating equipment conducted by fuel oil or gas dealers for their own fuel customers. The domestic or residential heating equipment involved includes, but is not limited to oil or gas burners, hot water/steam boilers and hot air furnaces. Whenever such work is conducted by risks other than fuel or gas dealers, the operations are properly assigned to the appropriate construction classifications.
The installation of solar panels, whether ground-supported or installed on roofs, is assigned to Code 5538 and specifically includes all plumbing and electrical work. Site work, concrete pad construction, and supporting metal framework installation in conjunction with ground-supported solar panel installation are separately rated. Separately rate all roof repair in conjunction with qualifying Code 5538 solar panel roof installation to the appropriate roofing classification codes.
Class 5183
Includes shop. Applies to the application of cork or other non-conducting materials.
Applies to work inside of buildings. Installation of freight carrier systems rated as Code 3724 millwright work.
Irrigation and drainage system construction to be classified as Code 6229.
Applicable to gas, steam, hot water or other types of pipe fitting. Includes house connections and shop operation. Automatic sprinkler installation to be separately rated as Code 5188.
Installation or repair of compressors, motors or other machinery to be separately rated as Code 3724.