* Editor's note – Coun. J. 7-9-03, p. 3609, did not provide for this section number or caption, both of which have been inserted at the discretion of the editor.
Chapter 4 – Gas Piping Installation, of the International Fuel Gas Code, (IFGC) 2000 Edition, is adopted in its entirety by reference and with modifications as contained in this chapter.
Section 403 – Piping Materials is adopted with the following additions:
403.5.4.1 Concealed fittings. While the brass mechanical attachment fittings in the CSST system are listed for concealed use in accordance with the ANSI LC-1 standard, concealed fittings are not allowed in the City of Chicago except for connection of CSST to the thru-wall rigid pipe at meter and appliance sub-outs.
403.5.4.2 Manifolds. Distribution manifolds comprised of standard malleable tees and listed brass fittings are not approved to be concealed at this time. For this installation, an access panel shall be installed to provide access to the manifold assembly.
Deletions – 406.2 Test medium. The test medium shall be air or an inert gas. Oxygen shall not be used.
Addition – 406.2 Test medium. The test medium shall be nitrogen. Oxygen shall not be used.
Section 414 – Supplemental and Standby Gas Supply is adopted with the following addition:
414.3 Gas Boosters. Where a customer is boosting gas pressure with a booster, an approved customer-owned back pressure valve (check valve) must be installed at the outlet of the meter owned and maintained by the local natural gas utility company.