Adopts With Amendments
Chapter 2
Definitions
International Mechanical Code 2021
[F] 201.1 Scope
Section 201.1 — Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 201.1.1 Scope of Definitions
Section 201.1.1 — Scope of Definitions. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 201.2 Interchangeability
Section 201.2 — Interchangeability. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 201.2.1 Mechanical Definitions General
Section 201.2.1 — Mechanical Definitions General. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 201.3 Appliance Definitions
Section 201.3 — Appliance Definitions. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 201.4 Undefined Terms
Section 201.4 — Undefined Terms. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
[F] 202-AIR Air Handling Unit - Definition
Section 202-AIR — Air Handling Unit - Definition. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202-BTU British Thermal Unit - Definition
Section 202-BTU — British Thermal Unit - Definition. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.1 General Definitions
Section 202.1 — General Definitions. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.1.1 Air-Handling Unit Definition
Section 202.1.1 — Air-Handling Unit Definition. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.1.2 Duct Definition
Section 202.1.2 — Duct Definition. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.1.3 Plenum Definition
Section 202.1.3 — Plenum Definition. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.10 Refrigerant
Section 202.10 — Refrigerant. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.11 Definition - Duct
Section 202.11 — Definition - Duct. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.12 Definitions - Economizer
Section 202.12 — Definitions - Economizer. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.13 Definition - Exhaust System
Section 202.13 — Definition - Exhaust System. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.14 DAMPER, FIRE
Section 202.14 — DAMPER, FIRE. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.15 Definitions - Fire Damper
Section 202.15 — Definitions - Fire Damper. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.16 Definitions - Plenum
Section 202.16 — Definitions - Plenum. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.17 DUCT SYSTEM
Section 202.17 — DUCT SYSTEM. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.18 Definition - Return Air
Section 202.18 — Definition - Return Air. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.19 Definitions - Smoke Damper
Section 202.19 — Definitions - Smoke Damper. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.2 AIR, EXHAUST
Section 202.2 — AIR, EXHAUST. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.2.1 Duct System Definition
Section 202.2.1 — Duct System Definition. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.20 Definitions - Supply Air
Section 202.20 — Definitions - Supply Air. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.21 Definitions - Ventilation
Section 202.21 — Definitions - Ventilation. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.22 FLUE
Section 202.22 — FLUE. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.23 FUEL GAS
Section 202.23 — FUEL GAS. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.24 Outdoor Air
Section 202.24 — Outdoor Air. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.25 Plenum
Section 202.25 — Plenum. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.26 HEAT PUMP
Section 202.26 — HEAT PUMP. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.27 Return Air
Section 202.27 — Return Air. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.28 HVAC SYSTEM
Section 202.28 — HVAC SYSTEM. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.29 Supply Air
Section 202.29 — Supply Air. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.3 AIR, MAKEUP
Section 202.3 — AIR, MAKEUP. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.30 Ventilation
Section 202.30 — Ventilation. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.31 REFRIGERATION SYSTEM
Section 202.31 — REFRIGERATION SYSTEM. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.32 RETURN AIR SYSTEM
Section 202.32 — RETURN AIR SYSTEM. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.33 THERMOSTAT
Section 202.33 — THERMOSTAT. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.34 VENT
Section 202.34 — VENT. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.35 VENTILATION
Section 202.35 — VENTILATION. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.4 Chimney
Section 202.4 — Chimney. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.5 Exhaust System Definition
Section 202.5 — Exhaust System Definition. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.6 Definitions - Air-Handling Unit
Section 202.6 — Definitions - Air-Handling Unit. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.7 Definitions - Boiler
Section 202.7 — Definitions - Boiler. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.8 Definitions - Chimney
Section 202.8 — Definitions - Chimney. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.9 Plenum
Section 202.9 — Plenum. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.A Air-Handling Unit
Section 202.A — Air-Handling Unit. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.B Boiler
Section 202.B — Boiler. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.C Chimney
Section 202.C — Chimney. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.D Duct System
Section 202.D — Duct System. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.E Exhaust System
Section 202.E — Exhaust System. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.F Fuel Gas
Section 202.F — Fuel Gas. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.G Grease Duct
Section 202.G — Grease Duct. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] 202.H HEPA Filter
Section 202.H — HEPA Filter. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.