![](/images/flag/s/en.gif)
![](/images/flag/s/fr.gif)
CAN/ULC 8553 1986 Fire Extinguisher (C02) ANSI/NFPA 12-1989 This section is not intended to be complete and other nationally recognized standards may be appropriate. Gas Supply 1. Installation of the equipment should be made by a licensed plumber. 2. A gas shut-off valve must be installed in the gas supply line ahead or the appliance for safety and for ease of future service. 3. A gas pressure regulator must be installed at the appliance prior to connecting the equipment to the gas line. Failure