I think the fire marschel is right but for the wrong reason, if you connect the FDC to the underground and have a control valve in the building it conflicts with 8.16.1.1.1.3 The requirements of 8.16.1.1.1.2 shall not apply to the fire department connection, and there shall be no shutoff valve in the fire department connection.
On Thu, Jul 11, 2013 at 4:56 PM, Bobby Gillett <[email protected]>wrote: > We have a project that requires a Free Standing FDC. Typically we would use > the scenario of putting the backflow preventer above ground and mounting > the FDC on the dishcarge side of the backflow before going back > underground to supply the system in the building. The local fire marshall > is wanting the FDC to come off the interior system and pipe underground > back out to the FDC; he is quoting the explanation after 912.1 of the 2012 > IFC: "These connections give the fire department the capability of > supplying the necessary water to the automatic sprinkler system at a > sufficient pressure *without pressurizing the underground supply*." > I believe this is being misinterpreted - my interpretation is that this is > referencing *not pressurizing the underground supply* on the supply side of > the backflow (or a check valve depending on the scenario) - not the > underground to the system on the discharge side of the backflow. > > Has anyone dealt with this scenario yet and is their documentation out > there straightening this out? > > Thank you, > > Bobby Gillett > Living Water Fire Protection, LLC > (850) 937-1850 > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Regards, Joel Chaim Active Fire Protection Inc. Phone: 845-782-7494 Cell: 845-781-3075 Fax: 866-903-9949 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
