Page 24 - 2018_IFGC

CHAPTER 2

DEFINITIONS

User note:
About this chapter: Codes, by their very nature, are technical documents. Every word, term and punctuation mark can add to or change the
meaning of a technical requirement. It is necessary to maintain a consensus on the specific meaning of each term contained in the code.
Chapter 2 performs this function by stating clearly what specific terms mean for the purposes of the code.

SECTION 201 (IFGC) ANODELESS RISER. A transition assembly in which plas-
GENERAL tic piping is installed and terminated above ground outside of
a building.
201.1 Scope. Unless otherwise expressly stated, the follow-
ing words and terms shall, for the purposes of this code and [M] APPLIANCE. Any apparatus or device that utilizes a
standard, have the meanings indicated in this chapter. fuel or a raw material as a fuel to produce light, heat, power,
refrigeration or air conditioning. Also, an apparatus that com-
201.2 Interchangeability. Words used in the present tense
include the future; words in the masculine gender include the presses fuel gases.
feminine and neuter; the singular number includes the plural APPLIANCE, AUTOMATICALLY CONTROLLED.
and the plural, the singular. Appliances equipped with an automatic burner ignition and
safety shutoff device and other automatic devices that accom-
201.3 Terms defined in other codes. Where terms are not plish complete turn-on and shutoff of the gas to the main
defined in this code and are defined in the International burner or burners, and graduate the gas supply to the burner
Building Code, International Fire Code, International or burners, but do not affect complete shutoff of the gas.
Mechanical Code or International Plumbing Code, such
terms shall have meanings ascribed to them as in those codes. APPLIANCE, FAN-ASSISTED COMBUSTION. An
appliance equipped with an integral mechanical means to
201.4 Terms not defined. Where terms are not defined either draw or force products of combustion through the com-
through the methods authorized by this section, such terms bustion chamber or heat exchanger.
shall have ordinarily accepted meanings such as the context
implies. APPLIANCE TYPE.
Low-heat appliance (residential appliance). Any appli-
ance in which the products of combustion at the point of
SECTION 202 (IFGC) entrance to the flue under normal operating conditions
GENERAL DEFINITIONS have a temperature of 1,000°F (538°C) or less.
[M] ACCESS (TO). That which enables a device, appliance Medium-heat appliance. Any appliance in which the
or equipment to be reached by ready access or by a means products of combustion at the point of entrance to the flue
that first requires the removal or movement of a panel, door under normal operating conditions have a temperature of
or similar obstruction (see also “Ready access”). more than 1,000°F (538°C), but not greater than 2,000°F
(1093°C).
AIR CONDITIONER, GAS-FIRED. A gas-burning, auto-
matically operated appliance for supplying cooled air, dehu- APPLIANCE, UNVENTED. An appliance designed or
midified air, or both, or chilled liquid. installed in such a manner that the products of combustion are
not conveyed by a vent or chimney directly to the outside
[M] AIR CONDITIONING. The treatment of air so as to atmosphere.
control simultaneously the temperature, humidity, cleanness
and distribution of the air to meet the requirements of a con- [M] APPLIANCE, VENTED. An appliance designed and
ditioned space. installed in such a manner that all of the products of combus-
tion are conveyed directly from the appliance to the outdoor
[M] AIR, EXHAUST. Air being removed from any space or atmosphere through an approved chimney or vent system.
piece of equipment or appliance and conveyed directly to the
atmosphere by means of openings or ducts. [A] APPROVED. Acceptable to the code official.
[A] APPROVED AGENCY. An established and recognized
[M] AIR-HANDLING UNIT. A blower or fan used for the agency that is regularly engaged in conducting tests, furnish-
purpose of distributing supply air to a room, space or area.
ing inspection services or furnishing certification, where such
[M] AIR, MAKEUP. Any combination of outdoor and trans- agency has been approved by the code official.
fer air intended to replace exhaust air and exfiltration.
ATMOSPHERIC PRESSURE. The pressure of the weight
[A] ALTERATION. A change in a system that involves an of air and water vapor on the surface of the earth, approxi-
extension, addition or change to the arrangement, type or pur- mately 14.7 pounds per square inch (psi) (101 kPa absolute)
pose of the original installation. at sea level.

2018 INTERNATIONAL FUEL GAS CODE ® 11
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