Section 675IAC16-1.4-6. Chapter 5; water heaters

   Chapter 5 is amended as follows:

(a) Add Section 502.1.1 Elevation of ignition source to read as follows: Elevation of ignition source. Equipment and appliances having an ignition source and located in hazardous locations and public garages, private garages, repair garages, automotive motor-fuel-dispensing facilities, and parking garages shall be elevated such that the source of ignition is not less than eighteen (18) inches (457 mm) above the floor surface on which the equipment or appliance rests. Such equipment and appliances shall not be installed in Group H occupancies or control areas where open use, handling, or dispensing of combustible, flammable, or explosive materials occur. For purposes of this section, rooms or spaces that are not part of the living space of a dwelling unit and that communicate directly with a private garage through openings shall be considered to be part of the private garage.

(b) Add Section 502.1.1.1, Parking garages to read as follows: Parking garages. Connection of a parking garage with any room in which there is a fuel-fired appliance shall be by means of a vestibule providing a two-door separation, except that a single door is permitted where the sources of ignition in the appliances are elevated in accordance with Section 304.3 of the Indiana Mechanical Code.

Exception: This section shall not apply to appliance installations complying with Section 304.5 of the Indiana Mechanical Code.

(c) Add Section 502.2.1, Prohibited locations to read as follows: Prohibited locations. Fuel-fired appliances shall not be located in, or obtain combustion air from, any of the following rooms or spaces:

(1) Sleeping rooms.

(2) Bathrooms.

(3) Toilet rooms.

(4) Storage closets.

(5) Surgical rooms.

Exception: This section shall not apply to the following appliances:

(i) Direct-vent appliances that obtain all combustion air directly from the outdoors.

(ii) Solid fuel-fired appliances provided that the room is not a confined space and the building is not of unusually tight construction.

(iii) Appliances installed in a dedicated enclosure in which all combustion air is taken directly from the outdoors, in accordance with Section 703 of the Indiana Mechanical Code. Access to such enclosure shall be through a solid door, weather-stripped in accordance with the exterior air leakage requirements of the Indiana Energy Conservation Code and equipped with an approved self-closing device.

(d) Delete Section 504.2 and insert to read as follows: Bottom fed water heaters. A bottom fed water heater or tank connected to a water heater that is installed at and above the fixture outlet shall be protected from accidental drainage and negative pressure by:

(1) a check valve and a properly sized expansion tank; or

(2) a vacuum relief valve that shall comply with ANSI Z 21.22 and be installed in accordance with the manufacturer's recommendations.

(e) Add Section 504.2.1 to read as follows: The cold water piping shall rise above the top of the water heater before connecting to the tank inlet.

(Fire Prevention and Building Safety Commission; 675 IAC 16-1.4-6; filed Sep 25, 2012, 2:42 p.m.: 20121024-IR-675110448FRA, eff 90 days after filing with the Publisher)