2108.3.3 Unprotected facilities.
FC § 2108.3.3
A lawfully existing Type III dry cleaning facility that is not in compliance with FC 2108.3.1 or 2108.3.2 shall, upon alteration on or after the effective date of this provision (FC 2108.3), be subject to the following requirements: 1. Two or more sprinkler heads designed and installed in accordance with the Building Code shall protect the dry cleaning system; and 2. The dry cleaning system shall be designed and listed to accomplish one or more of the following criteria: 2.1. Prevent oxygen concentrations from reaching 8 percent or more by volume; and/or 2.2. Keep the temperature of the solvent at least 30°F (16.7°C) below the ash point; and/or 2.3. Maintain the solvent vapor concentration at a level lower than 25 percent of the lower explosive limit (LEL); and/or 2.4. Utilize equipment approved for use in Class I, Division 2 hazardous locations in accordance with the Electrical Code; and/or 2.5. Utilize an integrated dry chemical, clean agent or water mist automatic re-extinguishing system designed in accordance with FC Chapter 9*; and * Editor's note: "FC" prefix added at the discretion of the editor.
3.The occupancy housing the dry cleaning establishment shall be in compliance with the Building Code and Mechanical Code. If not required and/or constructed with a 2-hour fire separation, the dry cleaning equipment shall be protected by a 1-hour fire rated enclosure provided with mechanical ventilation in accordance with the Mechanical Code.
4.The aggregate quantity of Type III-A dry cleaning solvent stored, handled and used in the dry cleaning facility, including the solvent used in the dry cleaning system, shall not exceed 330 gallons (1249 L).
5.The aggregate quantity of Type III-B dry cleaning solvent stored, handled and used in the dry cleaning facility, including the solvent used in the dry cleaning system, shall not exceed 660 gallons (2498 L).
