Public Input No. 21-NFPA 54-2021 Statement of Problem and Substantiation for Public Input Submitter Information Verification

Statement of Problem and Substantiation for Public Input The terms residential and domestic are used in the code and appear to mean the same thing. [...] The following shall be performed only by a qualified agency: (1) The design, installation, testing, purging, and replacement of gas piping, appliances, equipment, and accessories (2) The repair and servicing of appliances and of equipment Statement of Problem and Substantiation for Public Input Servicing of appliances is not within the scope of the Code. [...] The plan shall show the proposed location of piping, the size of different branches, the various load demands, and the location of the point of delivery, the location of isolation valves, and accomodations for meeting the safe purging requirements of this document in Chapter 8. [...] 42-NFPA 54-2021 [ New Section after 5.1.2 ] 5.1.2.1 If the capacity of the system is determined to be inadequate for the additional appliances, one of the following modifications shall be made to provide required minimum gas pressures to each appliance: a) The existing system shall be enlarged as required. [...] If the capacity of the system is determined to be inadequate for the additional appliances, the existing system shall be enlarged as required, or separate gas piping of adequate capacity shall be provided.