ADOPTS WITH AMENDMENTS:

International Fire Code 2018 (IFC 2018)

Heads up: There are no amended sections in this chapter.
This chapter shall apply to the maintenance and operation of industrial ovens and furnaces. Industrial ovens and furnaces shall comply with the applicable maintenance provisions of NFPA 86, the applicable building code, and this chapter. The terms "ovens" and "furnaces" are used interchangeably in this chapter.
Permits shall be required as set forth in Section 107.2.
Ventilation or combustion air for industrial ovens or furnaces shall be maintained in accordance with the applicable building code.
When locating ovens, oven heaters and related equipment, the possibility of fire resulting from overheating or from the escape of fuel gas or fuel oil and the possibility of damage to the building and injury to persons resulting from explosion shall be considered.
Industrial ovens and furnaces shall be located so as not to pose an ignition hazard to flammable vapors or mists or combustible dusts.
Unless otherwise approved by the applicable building code, roofs and floors of ovens shall maintain insulation and ventilation to prevent temperatures at combustible ceilings and floors from exceeding 160°F (71°C).
Fuel-gas piping serving industrial ovens shall be maintained in accordance with this section and remain in accordance with the applicable building code.
Manual fuel shutoff valves for industrial ovens or furnaces shall be maintained in accordance with the applicable building code.

Valves for fuel supply lines shall be located within 6 feet (1829 mm) of the appliance served.

Exception: When a valve located in the same general area as the appliance served has been approved in accordance with the applicable building code.

Manual fuel shutoff valves shall be maintained to visually indicate the open or closed position of the valve. Manual fuel shutoff valves shall not be equipped with removable handles or wrenches unless the handle or wrench can only be installed parallel with the fuel line when the valve is in the open position.
Interlocks shall be maintained for Class A ovens so that conveyors or sources of flammable or combustible materials shall shut down if either the exhaust or recirculation air supply fails.
Fire-extinguishing systems provided for Class A and B ovens that contain or are utilized for the processing of combustible materials shall be maintained in accordance with Chapter 9.
Fixed fire-extinguishing systems shall be maintained in accordance with Chapter 9 for Class C or D ovens to protect against such hazards as overheating, spillage of molten salts or metals, quench tanks, ignition of hydraulic oil, and escape of fuel.
Portable fire extinguishers complying with Section 906 shall be provided not closer than 15 feet (4572 mm) or not more than 50 feet (15 240 mm) or in accordance with NFPA 10. This shall apply to the oven and related equipment.
An approved, clearly worded, and prominently displayed safety design data form or manufacturer's nameplate shall be provided stating the safe operating condition for which the furnace system was designed, built, altered or extended.

Safety data for Class A solvent atmosphere ovens shall be furnished on the manufacturer's nameplate. The nameplate shall provide the following design data:

  1. The solvent used.
  2. The number of gallons (L) used per batch or per hour of solvent entering the oven.
  3. The required purge time.
  4. The oven operating temperature.
  5. The exhaust blower rating for the number of gallons (L) of solvent per hour or batch at the maximum operating temperature.

Exception: For low-oxygen ovens, the maximum allowable oxygen concentration shall be included in place of the exhaust blower ratings.

Operating, maintenance and supervisory personnel shall be thoroughly instructed and trained in the operation of ovens or furnaces.
Equipment shall be maintained in accordance with the manufacturer's instructions.
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