The 2018 edition of the Uniform Mechanical Code (UMC©) represents the most current approaches in the mechanical field. It is the sixth edition developed under the ANSI Consensus process is designated as an American National Standards by the American National Standards Institute (ANSI). The 2018 edition of the UMC reached a major milestone as it addresses specific provisions for low flammability refrigerants such as A2L and B2L; which makes it one of the first codes in the industry to address specific provisions for these low Global Warming Potential (GWP) refrigerants. Contributions to the content of this code were made by every segment of the built industry, including such diverse interests as consumers, enforcing authorities, installers/maintainers, labor, manufacturers, research/standards/ testing laboratories, special experts and users. The UMC provides complete requirements for the installation and maintenance of heating, ventilating, cooling and refrigeration systems, while at the same time allowing latitude for innovations and new technologies. Key changes to the 2018 UMC include: New clearance requirements for solid-fuel burning appliances, ducts serving Type I hood exhaust system, and product conveying ducts (Chapter 3) New provisions for Type I and Type II exhaust systems and product conveying ducts. New sizing provisions for duct systems, duct leakage testing requirements, installations and closure requirements for flexible air ducts, and new provisions for air dispersions systems (Chapter 6) New requirements for pressure regulators and electric furnaces (Chapter 9) New refrigerant system requirements, such as A2L and B2L low flammability refrigerants; machinery room requirements such as access, openings, detectors, and ventilation systems; and new pressure limiting-device provisions for compressors (Chapter 11) New pressure testing requirements for piping and components, expansion tanks, and materials for hydronic systems (Chapter 12) New requirements for piping material, overpressure protection and gas piping installation for fuel gas piping systems (Chapter 13)

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PDF Pages	PDF Title
2	Preface
4	Important Notices and Disclaimers Updating IAPMO Codes
5	FOREWORD Origin and Development
6	Adoption Revision Markings
7	FORMAT OF THE UNIFORM MECHANICAL CODE
12	SAMPLE LEGISLATION FOR ADOPTION OF THE UNIFORM MECHANICAL CODE
13	COMMITTEE ON UNIFORM MECHANICAL CODE
14	SECTION RELOCATION
16	TABLE OF CONTENTS Table of Contents
32	Chapter 1 101.0 General. 101.1 Title. 101.2 Scope. 101.3 Purpose. 101.4 Unconstitutional. 101.5 Validity. 102.0 Applicability. 102.1 Conflicts Between Codes. 102.2 Existing Installations. 102.3 Maintenance. 102.3.1 Commercial HVAC Systems. 102.3.2 Residential HVAC Systems. 102.4 Additions, Alterations, Renovations, orRepairs. 102.5 Health and Safety. 102.6 Changes in Building Occupancy. 102.7 Moved Structures. 102.8 Appendices.
33	103.0 Duties and Powers of the Authority HavingJurisdiction. 103.1 General. 103.2 Liability. 103.3 Applications and Permits. 103.3.1 Licensing. 103.4 Right of Entry. 104.0 Permits. 104.1 Permits Required. 104.2 Exempt Work. 104.3 Application for Permit.
34	104.3.1 Construction Documents. 104.3.2 Plan Review Fees. 104.3.3 Time Limitation of Application. 104.4 Permit Issuance. 104.4.1 Approved Plans or Construction Documents. 104.4.2 Validity of Permit. 104.4.3 Expiration.
35	104.4.4 Extension. 104.4.5 Suspension or Revocation. 104.4.6 Retention of Plans. 104.5 Fees. 104.5.1 Work Commencing Before PermitIssuance. 104.5.2 Investigation Fees. 104.5.3 Fee Refunds. 105.0 Inspections and Testing. 105.1 General. 105.2 Required Inspections. 105.2.1 Uncovering. 105.2.2 Other Inspections. 105.2.3 Inspection Requests.
36	105.2.4 Advance Notice. 105.2.5 Responsibility. 105.2.6 Reinspections. 105.3 Testing of Systems. 105.3.1 Defective Systems. 105.3.2 Retesting. 105.3.3 Approval. 105.4 Connection to Service Utilities. 106.0 Violations and Penalties. 106.1 General. 106.2 Notices of Correction or Violation. 106.3 Penalties. 106.4 Stop Orders.
37	106.5 Authority to Disconnect Utilities in Emergencies. 106.6 Authority to Condemn. 107.0 Board of Appeals. 107.1 General. 107.2 Limitations of Authority.
38	Table TABLE 104.5 MECHANICAL PERMIT FEES
40	Chapter 2 203.0 – A –
41	204.0 – B – 205.0 – C –
43	206.0 – D –
44	207.0 – E –
45	208.0 – F – 209.0 – G –
46	210.0 – H –
47	211.0 – I – 212.0 – J – 213.0 – K – 214.0 – L –
48	215.0 – M – 216.0 – N – 217.0 – O –
49	218.0 – P –
50	219.0 – Q – 220.0 – R –
51	221.0 – S – 222.0 – T –
52	223.0 – U – 224.0 – V –
53	225.0 – W – 226.0 – X – 227.0 – Y – 228.0 – Z –
54	Chapter 3 301.0 General. 301.1 Applicability. 301.2 Approval. 301.3 Design of Equipment. 301.4 Electrical Connections. 301.5 Oil-Burning Appliances. 301.6 Personnel Protection. 302.0 Materials – Standards and Alternates. 302.1 Minimum Standards. 302.1.1 Marking. 302.1.2 Standards. 302.1.3 Existing Buildings. 302.2 Alternate Materials and Methods of Construction Equivalency.
55	302.2.1 Testing. 302.2.1.1 Tests. 302.2.1.2 Request by the Authority Having Jurisdiction. 302.3 Alternative Engineered Design. 302.3.1 Permit Application. 302.3.2 Technical Data. 302.3.3 Design Documents. 302.3.4 Design Approval. 302.3.5 Design Review. 302.3.6 Inspection and Testing. 303.0 Installation. 303.1 Listed Appliances. 303.2 Closet or Alcove Installations. 303.3 Unlisted Appliances. 303.4 Anchorage of Appliances.
56	303.5 Movement. 303.6 Identification of Equipment. 303.7 Liquefied Petroleum Gas Facilities. 303.8 Appliances on Roofs. 303.8.1 Load Capacity. 303.8.2 Fasteners. 303.8.3 Installation of Appliances on Roofs. 303.8.4 Clearance. 303.8.5 Electrical Power. 303.8.6 Platform or Walkway. 303.9 Avoiding Strain on Gas Piping. 303.10 Clearances. 303.10.1 Clearance Reduction. 303.10.1.1 Type I Hood Exhaust System. 303.10.1.2 Product Conveying Ducts. 303.10.1.3 Solid-Fuel Burning Appliances. 303.11 Installation in Commercial Garages. 303.11.1 Repair Garages. 303.12 Installation in Aircraft Hangars. 303.13 Pit Location.
57	304.0 Accessibility for Service. 304.1 General. 304.2 Sloped Roof. 304.3 Access to Appliances on Roofs. 304.3.1 Access. 304.3.1.1 Access Type. 304.3.1.2 Permanent Ladders. 304.3.2 Permanent Lighting. 304.4 Appliances in Attics and Under-Floor Spaces. 304.4.1 Length of Passageway. 304.4.2 Width of Passageway. 304.4.3 Work Platform. 304.4.4 Lighting and Convenience Outlet. 305.0 Location. 305.1 Installation in Garages. 305.1.1 Physical Damage.
58	305.1.2 Access from the Outside. 305.1.3 Cellulose Nitrate Plastic Storage. 305.2 Flood Hazard Areas. 305.2.1 Coastal High Hazard Areas. 305.2.2 Air Exhaust and Intake Openings. 305.3 Elevator Shaft. 305.4 Drainage Pan. 306.0 Automatic Control Devices. 306.1 General. 307.0 Labeling. 307.1 Fuel-Burning Appliances. 307.2 Electric Heating Appliances.
59	307.3 Heat Pump and Electric Cooling Appliances. 307.4 Absorption Units. 308.0 Improper Location. 308.1 General. 309.0 Workmanship. 309.1 Engineering Practices. 309.2 Concealing Imperfections. 309.3 Installation Practices. 310.0 Condensate Wastes and Control. 310.1 Condensate Disposal. 310.1.1 Condensate Pumps. 310.2 Condensate Control.
60	310.2.1 Protection of Appurtenances. 310.3 Condensate Waste Pipe Material and Sizing. 310.3.1 Cleanouts. 310.4 Appliance Condensate Drains. 310.5 Point of Discharge. 310.6 Condensate Waste From Air-ConditioningCoils. 310.7 Plastic Fittings. 311.0 Heating or Cooling Air System. 311.1 Source. 311.2 Air Filters. 311.3 Prohibited Source. TABLE 310.3 MINIMUM CONDENSATE PIPE SIZE
61	311.4 Return-Air Limitations. 312.0 Plumbing Connections. 312.1 General. 313.0 Hangers and Supports. 313.1 General. 313.2 Material. 313.3 Suspended Piping. 313.4 Alignment. 313.5 Underground Installation. 313.6 Hanger Rod Sizes. 313.7 Gas Piping. 314.0 Balancing. 314.1 General. 315.0 Louvers in Hurricane Prone Regions. 315.1 General. 315.1.1 Testing. 315.1.2 Impact Resistance Test. 316.0 Protection of Piping, Tubing, Materials, and Structures. 316.1 General. TABLE 313.6 HANGER ROD SIZES
62	316.2 Installation. 316.3 Corrosion, Erosion, and Mechanical Damage. 316.4 Protectively Coated Pipe. 316.5 Fire-Resistant Construction. 316.6 Steel Nail Plates. 316.7 Sleeves. 316.7.1 Building Loads. 316.7.2 Exterior Walls. 316.8 Firewalls. 316.9 Structural Members. 316.10 Rodentproofing. 316.11 Metal Collars. 317.0 Trenching, Excavation, and Backfill. 317.1 Trenches. 317.2 Tunneling and Driving. 317.3 Open Trenches. 317.4 Excavations. Tables
63	TABLE 303.10.1 REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION [NFPA 54: TABLE 10.2.3] TABLE 303.10.1 REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION [NFPA 54: TABLE 10.2.3]
64	FIGURE 303.10.1(1)1, 2, 3 EXTENT OF PROTECTION NECESSARY TO REDUCECLEARANCES FROM GAS APPLIANCES OR VENT CONNECTORS [NFPA 54: FIGURE 10.3.2.3(a)] FIGURE 303.10.1(2) WALL PROTECTOR CLEARANCE REDUCTION SYSTEM [NFPA 54: FIGURE 10.3.2.3(b)] FIGURE 303.10.1(3) MASONRY CLEARANCE REDUCTION SYSTEM [NFPA 54: FIGURE 10.3.2.3(c)] Figures FIGURE 303.10.1(1) EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM GAS APPLIANCES OR VENT CONNECTORS [NFPA 54: FIGURE 10.3.2.3(a)] FIGURE 303.10.1(2) WALL PROTECTOR CLEARANCE REDUCTION SYSTEM [NFPA 54: FIGURE 10.3.2.3(b)] FIGURE 303.10.1(3) MASONRY CLEARANCE REDUCTION SYSTEM[NFPA 54: FIGURE 10.3.2.3(c)]
65	TABLE 313.3 HANGERS AND SUPPORTS
66	Chapter 4 401.0 General. 402.0 Ventilation Air. 402.1 Occupiable Spaces. 402.1.1 Construction Documents. 402.1.2 Dwelling. 402.1.3 Ventilation in Health Care Facilities. 402.2 Natural Ventilation. 402.2.1 Floor Area to Be Ventilated. 402.2.1.1 Single Side Opening. 402.2.1.2 Double Side Opening. 402.2.1.3 Corner Openings. 402.2.1.4 Ceiling Height. 402.2.2 Location and Size of Openings. 402.2.3 Control and Accessibility. 402.3 Mechanical Ventilation.
67	402.4 Outdoor Air Intake Protection. 402.4.1 Weather Protections. Outdoor air intakes 403.0 Ventilation Rates. 403.1 General. 403.2 Zone Calculations. 403.2.1 Breathing Zone Outdoor Airflow. The outdoor 403.2.2 Zone Air Distribution Effectiveness. 403.2.3 Zone Outdoor Airflow. 403.3 Single-Zone Systems. 403.4 One Hundred Percent Outdoor Air Systems. 403.5 Multiple-Zone Recirculating Systems. 403.5.1 Primary Outdoor Air Fraction. 403.5.2 System Ventilation Efficiency. 403.5.3 Uncorrected Outdoor Air Intake.
68	403.5.4 Outdoor Air Intake. 403.6 Design for Varying Operating Conditions. 403.6.1 Short-Term Conditions. 403.7 Exhaust Ventilation. 403.7.1 Parking Garages. 403.7.2 Enclosed Parking Garages. 403.8 Dynamic Reset. 403.9 Air Classification and Recirculation. 403.9.1 Class 1 Air. 403.9.2 Class 2 Air. 403.9.3 Class 3 Air. 403.9.4 Class 4 Air.
69	404.0 Multiple-Zone Systems. 404.1 General. 404.2 Average Outdoor Air Fraction. 404.3 Zone Ventilation Efficiency. 404.3.1 Single Supply Systems. 404.3.2 Secondary-Recirculation Systems.
70	Tables TABLE 402.1 MINIMUM VENTILATION RATES IN BREATHING ZONE [ASHRAE 62.1: TABLE 6.2.2.1]
72	TABLE 403.2.2 ZONE AIR DISTRIBUTION EFFECTIVENESS [ASHRAE 62.1: TABLE 6.2.2.2] TABLE 403.5.2 SYSTEM VENTILATION EFFICIENCY [ASHRAE 62.1: TABLE 6.2.5.2]
73	TABLE 403.7 MINIMUM EXHAUST RATES [ASHRAE 62.1: TABLE 6.5]
74	Chapter 5 501.0 General. 501.1 Applicability. This chapter includes requirements for 502.0 Termination. 502.1 Exhaust Opening Protection. 502.2 Termination of Exhaust Ducts. 502.2.1 Environmental Air Ducts. 502.2.2 Product Conveying Ducts. 502.2.3 Commercial Kitchen Ducts. Part I – Environmental Air Ducts and Product-Conveying Systems. 503.0 Motors, Fans, and Filters. 503.1 General. 503.2 Fans. 504.0 Environmental Air Ducts. 504.1 General. 504.1.1 Backdraft Protection.
75	504.2 Independent Exhaust Systems. 504.3 Domestic Range. 504.4 Clothes Dryers. 504.4.1 Provisions for Makeup Air. 504.4.2 Domestic Clothes Dryers. 504.4.2.1 Length Limitation. 504.4.2.2 Transition Ducts. 504.4.2.3 Exhaust Duct Power Ventilators. 504.4.3 Commercial Clothes Dryers. 504.4.3.1 Exhaust Ducts for Type 2 Clothes Dryers.
76	504.4.4 Common Exhaust. 504.4.5 Duct Supports. 504.5 Heat (Energy) Recovery Ventilators. 504.6 Gypsum Wallboard Ducts. 505.0 Product-Conveying Systems. 505.1 General. 505.1.1 Mechanical Ventilation. 505.2 Incompatible Materials. 505.3 Flammability Limit. 505.3.1 Higher Concentrations. 505.3.2 Ovens and Furnaces. 505.3.3 Deflagration. 505.4 Air-Moving Devices. 505.5 Generating Flames, Sparks, or Hot Materials. 505.6 Fire Dampers.
77	505.6.1 Prohibited. 505.7 Fire Detection and Alarm Systems. 505.7.1 Automatic Extinguishing System. 505.7.2 Shut Down Permitted. 505.8 Product-Conveying Ducts Classification. 505.9 Minimum Velocities and Circulation. 505.10 Makeup Air. 505.11 Hoods and Enclosures. Tables TABLE 505.9 MINIMUM DUCT DESIGN VELOCITIES [NFPA 91: TABLE A.4.1.5]
78	506.0 Product-Conveying Ducts. 506.1 Materials. 506.2 Construction. 506.3 Penetrations. 506.3.1 Fire Barriers. 506.3.2 Protection.
79	TABLE 506.2(1) MINIMUM SHEET METAL THICKNESS FOR ROUND DUCTS
80	506.4 Condensate. 506.4.1 Drainage. 506.5 Fittings. 506.6 Explosion Venting. 506.7 Supports. 506.8 Fire Protection.
81	506.8.1 Loads. 506.8.2 Corrosion. 506.8.3 Vibration and Stress. 506.8.4 Expansion and Contraction. 506.9 Protection from Physical Damage. 506.10 Duct Clearances. 506.10.1 Protection Provided. 506.10.2 Systems Conveying Combustible Materials. TABLE 506.2(2) MINIMUM SHEET METAL THICKNESS FOR RECTANGULAR DUCTS
82	506.10.3 Reduced Clearance Permitted. 506.10.4 Clearance Increases. 506.10.4.1 Temperatures Over 900°F. 506.10.4.2 Clearance Reduction. 506.11 Clearance Reduction Methods. 506.11.1 Spacers and Ties. 506.11.2 Wool Batts Insulation. 506.11.3 Insulation Board. 506.11.4 Duct and Thermal Shield. 506.11.5 Thermal Shield and Combustible Surface. 506.11.6 Reduce Clearance with Air Gaps. 506.11.6.1 Air Circulation. 506.11.6.2 Single Flat Wall. 506.11.6.3 Thermal Shielding. TABLE 506.10.4 BASIC MINIMUM CLEARANCES TO UNPROTECTED SURFACES [NFPA 91: TABLE 4.7.3]
83	TABLE 506.11 REDUCTION OF DUCT CLEARANCE WITH SPECIFIED FORMS OF PROTECTION [NFPA 91: TABLE 4.7.4]
84	Part II – Commercial Hoods and KitchenVentilation. 507.0 General Requirements. 507.1 Type I Hood Exhaust System. 507.2 Exhaust System. 507.3 Listed Devices. 507.3.1 Penetration. 507.4 Clearance. 507.4.1 Listed. 507.4.2 Clearance Reduction. 507.4.2.1 Mineral Wool Batts or Ceramic Fiber Blanket. 507.4.2.2 Field-Applied Grease Duct Enclosure. 507.4.2.3 Zero Clearance. 507.4.3 Clearance Integrity.
85	507.4.3.1 Fire. 507.4.3.2 Required Protection. 507.4.3.3 Protection Methods. 507.4.4 Factory Built. 507.4.5 Field Applied. 507.4.6 Both Field-Applied and Factory Built. 507.4.6.1 Physical Damage. 507.4.6.2 Specification. 507.4.6.3 Clearance Options. 507.4.7 Building and Structural Contact. 507.4.7.1 Corrosion Protection. 507.4.7.2 Zero Clearance. 507.4.8 Clearance Between Duct and Interior Surfaces. 507.5 Drawings. 507.6 Notification of Change.
86	508.0 Type I Hoods. 508.1 Where Required. 508.2 Listed Type I Hood Assemblies. 508.2.1 Listed Ultraviolet Hoods. 508.2.2 Construction of Listed Exhaust Hoods. 508.2.3 Assembly of Listed Exhaust Hoods. 508.3 Construction of Type I Hoods. 508.3.1 Grease Vapor. 508.3.2 Seams, Joints, and Penetrations. Seams, 508.3.2.1 Sealed. 508.3.3 Eyebrow-Type Hoods. 508.3.3.1 Duct Connection. 508.3.4 Insulation. Figures FIGURE 508.3.3 TYPICAL SECTION OF EYEBROW-TYPE HOOD [NFPA 96: FIGURE 5.1.8.1]
87	508.3.5 Exhaust Hood Assemblies with Integrated Supply-Air Plenums. 508.3.5.1 Outer Shell. 508.3.5.2 Inner Shell. 508.3.5.3 Fire Dampers. 508.3.5.3.1 Listing. 508.3.5.3.2 Actuating Temperature. 508.3.5.3.3 Exemption. 508.4 Supports. 508.5 Hood Size. 508.5.1 Canopy Size and Location. 508.5.1.1 Capacity of Hoods. 508.5.1.2 Extra-Heavy-Duty Cooking Appliances. 508.5.1.3 Heavy-Duty Cooking Appliances. TABLE 508.5.1.2 EXTRA-HEAVY-DUTY COOKING APPLIANCE AIRFLOW TABLE 508.5.1.3 HEAVY-DUTY COOKING APPLIANCE AIRFLOW
88	508.5.1.4 Medium-Duty Cooking Appliances. 508.5.1.5 Light-Duty Cooking Appliances. 508.5.2 Noncanopy-Type Hoods. 508.5.2.1 Installation. 508.5.2.2 Capacity. 508.5.3 Labeling. 508.6 Solid-Fuel Hood Assemblies. 508.7 Exhaust Outlets. 509.0 Grease Removal Devices in Hoods. 509.1 Grease Removal Devices. 509.1.1 Grease Filters, Mesh-Type. 509.2 Installation. 509.2.1 Vertical Distance. TABLE 508.5.1.4 MEDIUM-DUTY COOKING APPLIANCE AIRFLOW TABLE 508.5.1.5 LIGHT-DUTY COOKING APPLIANCE AIRFLOW
89	509.2.2 Grease Removal Device Protection. 509.2.2.1 Installation. 509.2.2.2 Size and Location. 509.2.2.3 Clearance. 509.2.3 Grease Filters. 509.2.3.1 Arrangement. 509.2.3.2 Accessibility. 509.2.3.3 Angled Installation. 509.2.4 Grease Drip Trays. 509.2.4.1 Size and Pitch. 509.2.5 Grease Filter Orientation. 509.3 Solid-Fuel Grease Removal Devices. 510.0 Exhaust Duct Systems. 510.1 General. 510.1.1 Fire Hazards. 510.1.2 Interconnection. 510.1.3 Duct Installation. 510.1.4 Accessibility. 510.1.5 Sign. 510.1.6 Bracing and Supports. 510.1.7 Type I Exhaust Duct Systems. 510.2 Clearance.
90	510.3 Openings. 510.3.1 Access Panel. 510.3.2 Access for Cleaning and Inspection. 510.3.3 Horizontal Ducts. 510.3.3.1 Cleaning. 510.3.3.2 Safe Access and Work Platform. 510.3.3.3 Support. 510.3.4 Vertical Ducts. 510.3.4.1 Access. Where personnel entry is not 510.3.4.2 Safe Access and Work Platform. 510.3.5 Nonlisted Ductwork. 510.3.6 Access Panels. 510.3.6.1 Within an Enclosure. Where openings 510.3.7 Fire Protection System Devices. 510.4 Listed Grease Ducts. 510.4.1 Factory-Built Grease Ducts. Factory-built 510.5 Other Grease Ducts. 510.5.1 Materials. 510.5.2 Factory-Built Grease Ducts. 510.5.3 Installation.
91	510.5.3.1 Duct Leakage Test. 510.5.3.2 Welded Duct Connection. 510.5.4 Butt Welded Connections. 510.5.5 Telescoping and Bell-Type Connections. 510.5.6 Duct Leakage Test. 510.6 Exterior Installations. 510.6.1 Weather Protection. 510.7 Interior Installations. 510.7.1 Less than Four Stories. 510.7.2 Four Stories or More. 510.7.3 Clearance. 510.7.4 Mechanical and Structural Integrity.
92	FIGURE 510.5.3 PERMITTED DUCT-TO HOOD COLLAR CONNECTION [NFPA 96: FIGURE 7.5.2.2] FIGURE 510.5.3.2(1) TELESCOPING -TYPE DUCT CONNECTION [NFPA 96: FIGURE 7.5.5.1(a)] FIGURE 510.5.3.2(2) BELL-TYPE DUCT CONNECTION [NFPA 96: FIGURE 7.5.5.1(b)] FIGURE 510.5.3.2(3) FLANGE WITH EDGE WELD DUCT CONNECTION [NFPA 96: FIGURE 7.5.5.1(c)] FIGURE 510.5.3.2(4) FLANGE WITH FILLED WELD DUCT CONNECTION [NFPA 96: FIGURE 7.5.5.1(d)]
93	510.7.5 Materials. 510.7.5.1 Protection from Physical Damage. 510.7.5.2 Inspection. 510.7.6 Listed. 510.7.7 Fire Doors. 510.7.8 Ducts with Enclosure(s). 510.8 Underground Installations. 510.8.1 Grease Receptacle. 510.8.2 Cleanouts. 510.9 Termination of Type I Hood Exhaust System. 510.9.1 Rooftop Terminations. 510.9.1.1 Listed Flexible Connectors. 510.9.1.2 Inspection and Cleaning.
94	510.9.2 Wall Terminations. 510.10 Solid-Fuel Duct Systems. 511.0 Air Movement. 511.1 Exhaust Fans for Commercial Cooking Operations. 511.1.1 Upblast Fans. 511.1.2 In-Line Exhaust Fans. FIGURE 510.9.1 UPBLAST FAN CLEARANCES [NFPA 96: FIGURE 7.8.2.1] FIGURE 510.9.2 EXHAUST TERMINATION DISTANCE FROM FRESH AIR INTAKE(FAI) OR OPERABLE DOOR OR WINDOW [NFPA 96: FIGURE 7.8.3]
95	511.1.2.1 Accessibility. 511.1.3 Utility Set Exhaust Fans. 511.1.3.1 At the Rooftop. 511.1.3.2 Within the Building. 511.1.3.3 Duct Systems. 511.1.4 Construction. 511.1.5 Openings. 511.1.6 Standard. 511.2 Airflow. 511.2.1 Exceptions. 511.2.2 Exhaust-Air Volumes. 511.2.2.1 Performance Test. 511.2.2.2 Capture and Containment Test. 511.2.3 Operation.
96	511.3 Makeup Air. 511.3.1 Air Balance. FIGURE 511.1.2(1) TYPICAL SECTION OF DUCT-TO-FANCONNECTION-BUTT JOINT METHOD [NFPA 96: FIGURE 8.1.3.2(a)] FIGURE 511.1.2(2) TYPICAL SECTION OF DUCT-TO-FANCONNECTION-OVERLAPPING METHOD [NFPA 96: FIGURE 8.1.3.2(b)] FIGURE 511.1.2(3) TYPICAL SECTION OF DUCT-TO-FANCONNECTION–SEALANT METHOD [NFPA 96: FIGURE 8.1.3.2(c)] FIGURE 511.1.2(4) TYPICAL SECTION OF DUCT-TO-FAN CONNECTION-DIRECTTO FAN INLET CONE METHOD [NFPA 96: FIGURE 8.1.3.2(d)]
97	511.4 Common Duct (Manifold) Systems. 511.4.1 Connections. 511.4.2 Fire Damper. 511.4.3 Construction and Clearance. 511.4.4 Adjustment. 511.4.5 Adjustment Location. 511.4.6 Bleed Air Duct. 511.4.7 Disconnect. 511.5 Solid-Fuel Air Movement Requirements. 512.0 Auxiliary Equipment. 512.1 Dampers. 512.1.1 Use. 512.2 Electrical Equipment. 512.2.1 Device Installation in Ducts. 512.2.2 Lighting Units. 512.2.3 Concealed Spaces. 512.2.4 Listed Lighting Units. 512.2.5 Standard. 512.3 Other Equipment. 512.3.1 Fire-Extinguishing System. 512.3.2 Air Recirculation. 512.4 Solid-Fuel Auxiliary Equipment. 513.0 Fire-Extinguishing Equipment. 513.1 General. 513.1.1 Protection.
98	513.2 Types of Equipment. 513.2.1 Identification. 513.2.2 Standard. 513.2.3 Installation. 513.2.4 Modification of Existing Hood Systems. 513.2.4.1 Sealing. 513.2.4.2 Obstructions. 513.2.4.3 System Re-evaluation. 513.2.5 Fixed Baffle Hoods with Water Wash. 513.2.5.1 Domestic Water Supply. 513.2.5.2 Control Valve. 513.2.5.3 Activation. 513.2.5.4 Water-Wash System. 513.2.5.5 Exception. 513.2.5.6 Water Supply. 513.2.6 Water Valve Supervision.
99	513.3 Simultaneous Operation. 513.3.1 Automatic Sprinkler System. 513.3.2 Dry or Wet Chemical Systems. 513.4 Fuel and Electric Power Shutoff. 513.4.1 Steam. 513.4.2 Protection Not Required. 513.4.3 Manual Reset. 513.5 Manual Activation. 513.5.1 Location of Manual Activation Device. 513.5.2 Automatic Sprinkler System. 513.5.3 Manual Actuator(s). 513.5.4 Stand by Power Supply. 513.6 System Annunciation. 513.6.1 Signaling. 513.7 System Supervision. 513.7.1 Automatic Fire-Extinguishing System. 513.7.2 Supervision. 513.7.3 Listed Water Wash System. 513.8 Special Design and Application. 513.8.1 Single Device.
100	513.9 Review and Certification. 513.10 Installation Requirements. 513.11 Portable Fire Extinguishers. 513.11.1 Other Fire Extinguishers. 513.12 Maintenance. 513.12.1 Permitted Use. 513.13 Solid-Fuel Fire-Extinguishing Equipment. 514.0 Procedures for the Use, Inspection, Testing, and Maintenance of Equipment. 514.1 Operating Procedures. 514.1.1 Filters. 514.1.2 Openings. 514.1.3 Posting of Instructions. 514.1.4 Listing and Manufacturer’s Instructions. 514.1.5 Nonoperational. 514.1.6 Secondary Control Equipment. 514.1.7 Inspection Frequency. 514.2 Inspection, Testing, and Maintenance. 514.2.1 Requirements. 514.2.2 Fusible Links and Sprinklers. 514.2.3 Inspection Tag. 514.2.4 Temperature-Sensing Elements. 514.2.5 Certification.
101	514.3 Inspection for Grease Buildup. 514.4 Cleaning of Exhaust Systems. 514.4.1 Removal of Contaminants. 514.4.2 Electrical Switches. 514.4.3 Fire Suppression System. 514.4.4 Inoperable. 514.4.5 Solvents/Cleaning Aids. 514.4.6 Cleaning Chemicals. 514.4.7 Coating. 514.4.8 Access Panels and Cover Plates. 514.4.9 Date of Inspection. 514.4.10 Airflow. 514.4.11 Operable State. 514.4.12 Certification of Service. 514.4.13 Report Provided. 514.4.14 Unclean Area. 514.5 Cooking Equipment Maintenance. 514.5.1 Cleaning. 515.0 Minimum Safety Requirements for Cooking Equipment. 515.1 Cooking Equipment. 515.1.1 Installation. 515.1.1.1 Re-evaluation. TABLE 514.3 SCHEDULE OF INSPECTION FOR GREASE BUILDUP [NFPA 96: TABLE 11.4]
102	515.1.1.2 Prior Location. 515.1.1.3 Minimum Space. 515.1.1.4 Space Not Required. 515.1.1.5 Minimum Height. 515.2 Operating Controls. 516.0 Recirculating Systems. 516.1 General Requirements. 516.2 Design Restrictions. 516.2.1 Gas/Electrically Fueled Cooking Appliances. 516.2.2 Recirculation. 516.2.3 Protection. 516.2.4 Maximum Limits. 516.2.5 Label. 516.2.6 Fire Damper. 516.2.7 Installation of Electrical Wiring. 516.2.8 Power Supply. 516.2.9 Listing Evaluation.
103	516.3 Interlocks. 516.3.1 Airflow Sections. 516.3.2 Filter Component. 516.3.3 ESP Interlocks. 516.3.3.1 Manual Reset. 516.3.4 Airflow Switch or Transducer. 516.4 Location and Application Restrictions. 516.5 Additional Fire Safety Requirements. 516.5.1 Installation Downstream. 516.5.2 Locations. 516.6 Use and Maintenance. 516.6.1 Manufacturer’s Instructions. 516.6.2 Cleaning Schedule. 516.6.3 Hood Plenum and Blower Section Cleaning Schedule. 516.6.4 Inspection of Safety Interlocks. 516.6.5 Inspection. 516.6.6 Maintenance Log. 517.0 Solid-Fuel Cooking Operations. 517.1 Venting Application. 517.1.1 Natural Draft. 517.1.2 System Compliance. 517.1.3 Makeup Air System.
104	517.1.4 Natural Draft Ventilation Systems. 517.1.5 Opening Requirements. 517.1.6 Spark Arresters. 517.2 Location of Appliances. 517.2.1 Prohibited Location. 517.2.2 Flammable Vapors. 517.3 Hoods for Solid-Fuel Cooking. 517.3.1 Separation. 517.3.1.1 Equipment with Solid Fuel for Flavoring. 517.4 Exhaust Systems for Solid-Fuel Cooking. 517.4.1 Hood. 517.4.2 Building Exceeding Four Stories. 517.4.3 Prohibited. 517.5 Grease Removal Devices for Solid-Fuel Cooking. 517.5.1 Spark Arrester Devices.
105	517.5.2 Filters. 517.6 Air Movement for Solid-Fuel Cooking. 517.6.1 Replacement Air. 517.6.2 Operation. 517.7 Fire-Extinguishing Equipment for Solid-FuelCooking. 517.7.1 Grease Removal Devices, Hoods, and Duct Systems. 517.7.2 Listed Fire-Extinguishing Equipment. 517.7.3 Rating and Design. 517.7.4 Listing/Class. 517.7.5 Fixed-Water Pipe System. 517.7.6 Fuel Storage. 517.7.7 Auxiliary Fuel. 517.8 Other Safety Requirements. 517.8.1 Site-Built Solid Fuel Cooling Appliances.
106	517.8.2 Additional Devices. 517.8.3 Prohibited. 518.0 Downdraft Appliances. 518.1 General. 518.2 Ventilation System. 518.3 Fire-Extinguishing Equipment. 518.3.1 Integral Fire-Extinguishing System. 518.3.2 Interlocks. 518.4 Airflow Switch or Transducer. 518.4.1 Interlocks. 518.4.2 Manual Reset. 518.5 Surface Materials. 519.0 Type II Hood Exhaust System Requirements. 519.1 Where Required. 519.2 Construction of Type II Hoods. 519.3 Dishwashing Appliances.
107	519.4 Type II Exhaust Duct Systems. 519.5 Termination of Type II Hood Exhaust System. 519.6 Makeup Air.
108	Chapter 6 601.0 General. 601.1 Applicability. 601.2 Sizing Requirements. 602.0 Material. 602.1 General. 602.2 Combustibles Within Ducts or Plenums. 602.2.1 Electrical. 602.2.2 Fire Sprinkler Piping. 602.2.3 Pneumatic Tubing. 602.2.4 Discrete Products in Plenums. 602.3 Metal. 602.4 Phenolic. 602.5 Gypsum. 602.6 Factory-Made Air Ducts. 602.7 Vibration Isolators. 602.8 Corridors. 603.0 Installation of Ducts. 603.1 General.
109	603.2 Under Floor or Crawl Space. 603.3 Metal Ducts. 603.3.1 Rectangular Ducts. 603.3.2 Horizontal Round Ducts. 603.3.2.1 Tight-Fitting Around the Perimeter. 603.3.2.2 Size of Circular Bands. 603.3.2.3 Connection. 603.3.3 Earthquake Loads. 603.4 Factory-Made Air Ducts. 603.4.1 Length Limitation. 603.5 Flexible Air Ducts. 603.6 Plastic Ducts.
110	603.7 Protection of Ducts. 603.8 Support of Ducts. 603.9 Protection Against Flood Damage. 603.10 Joints and Seams of Ducts. 603.10.1 Duct Leakage Tests. 603.11 Cross Contamination. 603.12 Underground Installation. 603.13 Air Dispersion Systems. 604.0 Insulation of Ducts. 604.1 General. Table TABLE 603.10 CLOSURE MARKINGS
111	604.1.1 Within Ducts or Plenums. 604.1.2 Duct Coverings and Linings. 605.0 Smoke Dampers, Fire Dampers, and Ceiling Dampers. 605.1 Smoke Dampers. 605.2 Fire Dampers. Fire dampers shall comply with UL 605.3 Ceiling Radiation Dampers. 605.4 Multiple Arrangements. 605.5 Access and Identification. 605.6 Freedom from Interference. 605.7 Temperature Classification of Operating Elements. 606.0 Ventilating Ceilings. 606.1 General. 606.2 Requirements.
112	607.0 Use of Under-Floor Space as Supply Plenumfor Dwelling Units. 607.1 General. 607.2 Dwelling Units. 607.3 Enclosed. 607.4 Flammable Materials. 607.5 Access. 607.6 Automatic Control. 607.7 Temperature Limit. 607.8 Noncombustible Receptacle. 607.8.1 Location. 607.8.2 Area. 607.8.3 Perimeter. 607.9 Floor Registers. 607.10 Exterior Wall and Interior Stud Partitions. 607.11Wall Register. 607.12 Distance from Combustible. 607.13 Vapor Barrier. 607.14 Prohibited. 608.0 Automatic Shutoffs. 608.1 Air-Moving Systems and Smoke Detectors. Airmoving
114	Chapter 7 701.0 General. 701.1 Applicability. 701.1.1 Other Types of Appliances. 701.2 Pressure Difference. 701.3 Makeup Air. 701.4 Indoor Combustion Air. 701.4.1 Standard Method. 701.4.2 Known Air Infiltration Rate Method. 701.5 Indoor Opening Size and Location. 701.6 Outdoor Combustion Air. 701.6.1 Two Permanent Openings Method.
115	701.6.2 One Permanent Opening Method. 701.7 Combination Indoor and Outdoor Combustion Air. 701.7.1 Indoor Openings. Figures FIGURE 701.5 COMBUSTION AIR FROM ADJACENT INDOOR SPACESTHROUGH INDOOR COMBUSTION AIR OPENINGS [NFPA 54: FIGURE A.9.3.2.3(1)] FIGURE 701.6.1(1) COMBUSTION AIR FROM OUTDOORSINLET AIR FROM VENTILATED CRAWL SPACE AND OUTLETAIR TO VENTILATED ATTIC [NFPA 54: FIGURE A.9.3.3.1(1)(a)] FIGURE 701.6.1(2) COMBUSTION AIR FROM OUTDOORSTHROUGH VENTILATED ATTIC [NFPA 54: FIGURE A.9.3.3.1(1)(b)]
116	701.7.2 Outdoor Openings. 701.7.3 Outdoor Opening(s) Size. 701.8 Engineered Installations. 701.9 Mechanical Combustion Air Supply. 701.9.1 Exhaust Fans. 701.9.2 Interlock. 701.9.3 Specified Combustion Air. 701.10 Louvers, Grilles, and Screens. 701.10.1 Minimum Screen Mesh Size. 701.10.2 Motorized Louvers. FIGURE 701.6.1(3) COMBUSTION AIR FROM OUTDOORSTHROUGH HORIZONTAL DUCTS [NFPA 54: FIGURE A.9.3.3.1(2)] FIGURE 701.6.2 COMBUSTION AIR FROM OUTDOORS THROUGHSINGLE COMBUSTION AIR OPENING [NFPA 54: FIGURE A.9.3.3.2]
117	701.11 Combustion Air Ducts. 701.12 Dampers Prohibited. 702.0 Extra Device or Attachment. 702.1 General.
118	Chapter 8 801.0 General. 801.1 Applicability. 801.2 Venting of Gas Appliances. 801.3 Appliances Fueled by Other Fuels. 802.0 Venting of Appliances. 802.1 Listing. 802.1.1 Installation. 802.1.2 Prohibited Discharge. 802.2 Connection to Venting Systems. 802.2.1 Appliances Not Required to be Vented. 802.2.2 Maximum Input Rating. 802.2.3 Adjacent Room or Space. 802.2.4 Ventilating Hoods. 802.2.5 Well-Ventilated Spaces. 802.2.6 Direct-Vent Appliances. 802.2.7 Appliances with Integral Vents. 802.2.8 Incinerators. 802.3 Design and Construction. 802.3.1 Appliance Draft Requirements. 802.3.2 Appliance Venting Requirements.
119	802.3.3 Mechanical Draft Systems. 802.3.3.1 Venting. 802.3.3.2 Leakage. 802.3.3.3 Vent Connectors. 802.3.3.4 Operation. 802.3.3.5 Exit Terminals. 802.3.4 Ventilating Hoods and Exhaust Systems. 802.3.4.1 Automatically Operated Appliance. 802.3.5 Circulating Air Ducts and Furnace Plenums. 802.3.6 Above-Ceiling or Nonducted Air Handling System. 802.4 Type of Venting System to be Used. 802.4.1 Plastic Piping. 802.4.2 Plastic Vent Joints. 802.4.3 Special Gas Vent. 802.5 Masonry, Metal, and Factory-Built Chimneys. 802.5.1 Factory-Built Chimneys. 802.5.1.1 Decorative Shrouds. 802.5.1.2 Listing Requirements. 802.5.2 Metal Chimneys. 802.5.3 Masonry Chimneys.
120	802.5.4 Termination. Tables TABLE 802.4 TYPE OF VENTING SYSTEM TO BE USED [NFPA 54: TABLE 12.5.1]
121	802.5.4.1 Medium-Heat Gas Appliances. 802.5.4.2 Chimney Height. 802.5.4.3 Decorative Shrouds. 802.5.5 Size of Chimneys. 802.5.6 Inspection of Chimneys or Vents. 802.5.7 Inspection of Chimneys. 802.5.7.1 Standard. Figures FIGURE 802.5.4 TYPICAL TERMINATION LOCATIONS FOR CHIMNEYS AND SINGLE-WALL METAL PIPES SERVING RESIDENTIAL-TYPE AND LOW-HEAT APPLIANCE [NFPA 54: FIGURE A.12.6.2.1]
122	802.5.7.2 Cleanouts. 802.5.7.3 Existing Chimney. 802.5.8 Chimney Serving Appliances Burning Other Fuels. 802.5.8.1 Gas and Liquid-Fuel-Burning Appliances. 802.5.8.2 Gas and Solid-Fuel-Burning Appliances. 802.5.8.3 Combination Gas- and Oil-Burning Appliances. 802.5.9 Support of Chimneys. 802.5.10 Cleanouts. 802.5.11 Space Surrounding Lining or Vent. 802.5.11.1 Combustion Air. 802.6 Gas Vents. 802.6.1 Termination Requirements.
123	802.6.1.1 Type B and L Vents. 802.6.1.2 Type B-W Vents. 802.6.1.3 Exterior Wall Termination. 802.6.1.4 Decorative Shrouds. 802.6.1.5 Termination Cap. 802.6.1.6 Forced Air Inlet. 802.6.1.7 Insulation Shield. 802.6.2 Size of Gas Vents. 802.6.2.1 Category I Appliances. 802.6.2.2 Vent Offsets. TABLE 802.6.1 ROOF PITCH HEIGHT [NFPA 54: TABLE 12.7.2] FIGURE 802.6.1 GAS VENT TERMINATION LOCATIONS FOR LISTEDCAPS 12 INCHES OR LESS IN SIZE NOT LESS THAN 8 FEET FROM A VERTICAL WALL [NFPA 54: FIGURE 12.7.2]
124	802.6.2.3 Category II, Category III, and Category IV Appliances. 802.6.2.4 Sizing. 802.6.3 Gas Vents Serving Appliances on More than One Floor. 802.6.3.1 Occupiable Space. 802.6.3.2 Multistory Venting System. 802.6.4 Support of Gas Vents. 802.6.5 Marking. FIGURE 802.6.3.1 PLAN VIEW OF PRACTICAL SEPARATION METHOD FOR MULTISTORY GAS VENTING [NFPA 54: FIGURE A.12.7.4.2] FIGURE 802.6.3.2 USE OF MANIFOLDED COMMON VENT CONNECTOR [NFPA 54: FIGURE F.1(k)]
125	802.7 Single-Wall Metal Pipe. 802.7.1 Cold Climate. 802.7.2 Termination. 802.7.3 Installation with Appliances Permitted by Section 802.4. 802.7.3.1 Limitations. 802.7.3.2 Attic or Concealed Space. 802.7.3.3 Clearances. 802.7.3.4 Combustible Exterior Wall. 802.7.3.5 Roof Thimble. TABLE 802.7.3.3 CLEARANCE FOR CONNECTORS [NFPA 54: TABLE 12.8.4.4]
126	802.7.4 Size of Single-Wall Metal Pipe. 802.7.4.1 Sizing of Venting System. 802.7.4.2 Non-Round Metal Pipe. 802.7.4.3 Venting Capacity. 802.7.5 Support of Single-Wall Metal Pipe. 802.7.6 Marking. 802.8 Through-the-Wall Vent Termination. 802.8.1 Mechanical Draft Venting System. 802.8.2 Direct-Vent Appliance. 802.8.3 Category I through Category IV and Noncategorized Appliances. 802.8.4 Annular Spaces. 802.8.5 Vent Terminals.
127	802.9 Condensation Drain. 802.9.1 Local Experience. 802.10 Vent Connectors for Category I Appliances. 802.10.1 Materials. 802.10.1.1 Unconditioned Area. 802.10.1.2 Residential Type Appliances. FIGURE 802.8 EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS [NFPA 54: FIGURE A.12.9]
128	802.10.1.3 Non-Residential Low-Heat Appliances. 802.10.1.4 Medium-Heat Appliances. 802.10.2 Size of Vent Connector. 802.10.2.1 Manifold. 802.10.2.2 Size. 802.10.2.3 Height. 802.10.2.4 Size Increase. TABLE 802.10.1.3 MINIMUM THICKNESS FOR GALVANIZED STEEL VENT CONNECTORS FOR LOW-HEAT APPLIANCES [NFPA 54: TABLE 12.11.2.4] TABLE 802.10.1.4 MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR MEDIUM-HEAT APPLIANCES [NFPA 54: TABLE 12.11.2.5]
129	802.10.3 Two or More Appliances Connected to a Single Vent. 802.10.3.1 Height of Connector. 802.10.3.2 Pressure. 802.10.4 Clearance. 802.10.5 Joints. 802.10.6 Slope. 802.10.7 Length of Vent Connector. 802.10.7.1 Single Wall Connector. 802.10.7.2 Type B Double Wall Connector. 802.10.8 Support. 802.10.9 Chimney Connection. 802.10.10 Inspection. 802.10.11 Fireplaces. 802.10.12 Passage through Ceilings, Floors, or Walls. 802.10.12.1 Medium-Heat Appliances. 802.11 Vent Connectors for Category II, Category III, and Category IV Appliances. 802.12 Draft Hoods and Draft Controls.
130	802.12.1 Installation. 802.12.2 Draft Control Devices. 802.12.3 Additional Devices. 802.12.4 Location. 802.12.5 Positioning. 802.12.6 Clearance. 802.13 Manually Operated Dampers. 802.14 Obstructions. 802.15 Automatically Operated Vent Dampers. 802.15.1 Listing. 803.0 Sizing of Category I Venting Systems. 803.1 Single Appliance Vent Table 803.1.2(1) through Table 803.1.2(6). 803.1.1 Vent Downsizing.
131	803.1.2 Elbows. 803.1.3 Zero Lateral. 803.1.4 High-Altitude Installations. 803.1.5 Multiple Input Ratings. 803.1.6 Corrugated Chimney Liner Reduction. 803.1.7 Connection to Chimney Liners. 803.1.8 Vertical Vent Upsizing Using 7 x Rule. 803.1.9 Draft Hood Conversion Accessories. 803.1.10 Chimney and Vent Locations. 803.1.11 Residential and Low-Heat Appliances. 803.1.11.1 Clay Flue Lining.
132	803.1.11.2 Chimney Lining. 803.1.12 Corrugated Vent Connector Size. 803.1.13 Upsizing. 803.1.14 Single Run of Vent. 803.1.15 Interpolation. 803.1.16 Extrapolation. 803.1.17 Engineering Methods. 803.1.18 Height Entries. 803.2 Multiple Appliance Vent Table 803.2(1) through Table 803.2(9). 803.2.1 Vent Connector Maximum Length. 803.2.2 Vent Connector Exceeding MaximumLength. TABLE 803.2.1 VENT CONNECTOR MAXIMUM LENGTH [NFPA 54: TABLE 13.2.2]
133	803.2.3 Vent Connector Manifold. 803.2.4 Vent Offset. 803.2.5 Elbow Reduction. 803.2.6 Elbows in Connectors. 803.2.7 Common Vent Minimum Size. 803.2.8 Tee and Wye Fittings. 803.2.9 Size of Fittings. 803.2.10 High-Altitude Installations. 803.2.11 Connector Rise. 803.2.12 Vent Height. 803.2.13 Multistory Installations. 803.2.14 Size of Vents for Multistory Installations. FIGURE 803.2.13 MULTISTORY GAS VENT DESIGN PROCEDURE FOR EACH SEGMENT OF SYSTEM [NFPA 54: FIGURE F.1(m)]
134	803.2.15 Vent Type Multistory Installation. 803.2.16 Offsets in Multistory Installations. 803.2.17 Vertical Vent Size Limitation. 803.2.18 Multiple Input Ratings. 803.2.19 Corrugated Metallic Chimney Liner Reduction. 803.2.20 Chimneys and Vents. FIGURE 803.2.14 PRINCIPLES OF DESIGN OF MULTISTORY VENTS USING VENT CONNECTOR AND COMMON VENT DESIGN TABLES [NFPA 54: FIGURE F.1(n)]
135	803.2.21 Vent Connector Sizing. 803.2.22 Combination of Pipe Types and Sizes. 803.2.23 Multiple Connector and Vent Sizes. 803.2.24 Interpolation. 803.2.25 Extrapolation. 803.2.26 Engineering Methods. 803.2.27 Height Entries.
136	FIGURE 803.1.2(6) RANGE OF WINTER DESIGN TEMPERATURES USED IN ANALYZING EXTERIOR MASONRY CHIMNEYS IN THE UNITED STATES [NFPA 54: FIGURE F.2.4]
137	TABLE 803.1.2(1) TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)]
140	TABLE 803.1.2(2) TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(b)]
142	TABLE 803.1.2(3) MASONRY CHIMNEY [NFPA 54: TABLE 13.1(c)]
144	TABLE 803.1.2(4) MASONRY CHIMNEY [NFPA 54: TABLE 13.1(d)]
146	TABLE 803.1.2(5) SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS-CEMENT VENT [NFPA 54: TABLE 13.1(e)]
147	TABLE 803.1.2(6) EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.1(f)]
148	TABLE 803.2(1) TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)]
152	TABLE 803.2(2) TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(b)]
154	TABLE 803.2(3) MASONRY CHIMNEY [NFPA 54: TABLE 13.2(c)]
156	TABLE 803.2(4) MASONRY CHIMNEY [NFPA 54: TABLE 13.2(d)]
158	TABLE 803.2(5) SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS-CEMENT VENT [NFPA 54: TABLE 13.2(e)] TABLE 803.2(6) EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(f)]
159	TABLE 803.2(7) EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(g)]
160	TABLE 803.2(8) EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(h)]
161	TABLE 803.2(9) EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(i)]
162	Chapter 9 901.0 General. 901.1 Applicability. 902.0 General. 902.1 Nonindustrial Appliance. 902.2 Combustion Air from Bedroom or Bathroom. 902.3 Added or Converted Appliances. 902.4 Type of Gas(es). 902.5 Safety Shutoff Devices for Unlisted LP-Gas Appliance Used Indoors. 902.6 Fuel Input Rate. 902.7 Use of Air or Oxygen Under Pressure. 902.8 Building Structural Members. 902.8.1 Structural Capacity. 902.9 Flammable Vapors. 902.10 Solid-Fuel Burning Appliances. 902.11 Combination of Appliances and Equipment. 902.12 Protection of Gas Appliances from Fumes or Gases Other than Products of Combustion.
163	902.13 Process Air. 902.14 Gas Appliance Pressure Regulators. 902.15 Venting of Gas Appliance Pressure Regulators. 902.16 Bleed Lines for Diaphragm-Type Valves. Bleed 903.0 Air-Conditioning Appliances. 903.1 Electric Air Conditioners. 903.2 Gas-Fired Air Conditioners and Heat Pumps. 903.2.1 Independent Gas Piping. 903.2.2 Connection of Gas Engine-Powered Air Conditioners. 903.2.3 Clearances for Indoor Installation.
164	903.2.4 Assembly and Installation. 903.2.5 Furnace Plenums and Air Ducts. 903.2.6 Refrigeration Coils. 903.2.7 Switches in Electrical Supply Line. 904.0 Central Heating Boilers and Furnaces. 904.1 Location. 904.1.1 Self-Closing Doors. 904.1.2 Gasketing. 904.2 Clearance. 904.2.1 Listed Units. 904.2.2 Unlisted Units. 904.2.3 Listed and Unlisted Units. 904.2.4 Front Clearance. 904.2.5 Adjacent to Plaster or Noncombustible Materials. 904.2.6 Interference. 904.2.7 Supply Air Ducts To Listed Furnaces.
165	904.2.8 Supply Air Ducts to Unlisted Furnaces. 904.2.9 Central Heating Furnaces. 904.3 Assembly and Installation. 904.3.1 Under-Floor Installation. 904.3.1.1 Supported by Ground. 904.3.1.2 Supported from Above. 904.3.1.3 Excavation. 904.4 Temperature- or Pressure-Limiting Devices. 904.5 Low-Water Cutoff. 904.6 Steam Safety and Pressure-Relief Valves. 904.6.1 Discharge. 904.6.2 Size. 904.6.3 End Connections. Tables TABLE 904.2.2 CLEARANCES TO COMBUSTIBLE MATERIAL FOR UNLISTED FURNACES AND BOILERS [NFPA 54: TABLE 10.3.2.2]
166	904.7 Furnace Plenums and Air Ducts. 904.7.1 Supplied As a Part of Furnace. 904.7.2 Not Supplied With The Furnace. 904.7.3 Return Air. 904.8 Refrigeration Coils. 904.9 Cooling Units Used with Heating Boilers. Boilers, 904.9.1 Exposed to Refrigerated Air Circulation. 904.10 Furnace (Upright and Horizontal). 904.11 Solid-Fuel-Fired Furnaces. 904.12 Oil-Fired Central Furnaces. 904.13 Commercial or Industrial Gas Heaters. 904.14 Electric Central Furnaces. 905.0 Duct Furnaces. 905.1 Clearances. 905.2 Installation of Duct Furnaces. 905.3 Access Panels. 905.4 Location of Draft Hoods and Controls. 905.5 Circulating Air.
167	905.6 Duct Furnaces Used with Refrigeration Systems. 905.6.1 In Conjunction with Cooling Appliances. 905.6.2 Located Upstream from Cooling Coils. 905.6.3 Heat Exchangers. 905.7 Installation in Commercial Garages and Aircraft Hangars. 905.8 Electric Duct Heaters. 905.8.1 Installation. 905.8.2 Clearance. 906.0 Floor Furnaces. 906.1 Installation. 906.2 Temperature Limit Controls. 906.3 Combustion and Circulating Air. 906.4 Placement. 906.5 Bracing. 906.6 Support. 906.7 Clearance.
168	906.8 Access. 906.9 Seepage Pan. 906.10 Wind Protection. 906.11 Upper-Floor Installations. 906.12 First Floor Installation. 906.13 Oil-Fired Floor Furnaces. 907.0 Wall Furnaces. 907.1 Installation. 907.1.1 Unlisted Wall Furnaces. 907.1.2 Vented Wall Furnaces. 907.1.3 Direct Vent Wall Furnaces. Figures FIGURE 907.1.2 INSTALLATION OF TYPE B-W GAS VENTS FORVENTED WALL FURNACES [NFPA 54: FIGURE 10.26.1.3]
169	907.1.4 Panels, Grilles, and Access Doors. 907.2 Location. 907.3 Combustion and Circulating Air. 907.4 Oil-Fired Wall Furnaces. 908.0 Clothes Dryers. 908.1 Electric Clothes Dryers. 908.2 Gas-Fired Clothes Dryers. 908.2.1 Clearance. 908.2.2 Exhausting to the Outdoors. 908.2.3 Multiple-Family or Public Use. 909.0 Conversion Burners. 909.1 General. 910.0 Burner Assemblies. 910.1 Oil Burners. 910.2 Gas Burners. 911.0 Decorative Appliances for Installation in Vented Fireplaces. 911.1 Prohibited Installations. 911.2 Installation. 911.2.1 Listed Decorative Appliance. 911.2.2 In Manufactured Homes. 911.2.3 Unlisted Decorative Appliance. 911.3 Fireplace Screens. 912.0 Gas Fireplaces, Vented. 912.1 Prohibited Installations. 912.2 Installation.
170	912.3 Combustion and Circulating Air. 913.0 Factory-Built Fireplaces and Fireplace Stoves. 913.1 Factory-Built Fireplaces. 913.1.1 Gasketed Fireplace Doors. 913.2 Fireplace Stoves. 913.3 Fireplace Accessories. 914.0 Non-Recirculating Direct Gas-Fired Industrial Air Heaters. 914.1 Application. 914.2 Prohibited Installations. 914.3 Installation. 914.3.1 Industrial or Commercial Occupancies. 914.3.2 Fresh Air Ventilation. 914.3.3 Access Required. 914.4 Clearance from Combustible Materials. 914.5 Air Supply. TABLE 911.2 FREE OPENING AREA OF CHIMNEY DAMPER FOR VENTING FLUE GASES FROM UNLISTED DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES [NFPA 54: TABLE 10.6.2.3]
171	914.6 Atmospheric Vents, Gas Reliefs, or Bleeds. 914.7 Relief Openings. 914.7.1 Infiltration Rate. 914.7.2 Louver or Gravity Dampers. 914.8 Purging. 915.0 Recirculating Direct Gas-Fired Industrial Air Heaters. 915.1 Application. 915.2 Prohibited Installations. 915.3 Installation. 915.4 Clearance from Combustible Materials. 915.5 Air Supply. 915.6 Atmospheric Vents, Gas Reliefs, or Bleeds. 915.7 Relief Openings. 915.7.1 Infiltration Rate. 915.7.2 Louver or Gravity Dampers. 915.8 Purging. 916.0 Room Heaters. 916.1 Electric Room Heaters. 916.2 Gas-Fired Room Heaters. 916.2.1 Prohibited Installations. 916.2.1.1 Unvented Room Heaters.
172	916.2.2 Installations in Institutions. 916.2.3 Clearance. 916.2.4 Wall-Type Room Heaters. 916.3 Solid-Fuel-Type Room Heaters. 917.0 Unit Heaters. 917.1 Support. 917.2 Clearance. 917.2.1 Floor-Mounted-Type Unit Heaters. 917.3 Combustion and Circulating Air. 917.4 Ductwork. 917.5 Installation in Commercial Garages and Aircraft Hangars. 917.6 Oil-Fired Unit Heaters.
173	918.0 Food Service Appliance, Floor Mounted. 918.1 Clearance for Listed Appliances. 918.2 Clearance for Unlisted Appliances. 918.3 Mounting on Combustible Floors. 918.3.1 Not Listed For Mounting on Combustible Floors. 918.4 Installation on Noncombustible Floors. 918.5 Combustible Material Adjacent to Cooking Top. 918.6 Use with Casters. 918.7 Level Installation. 918.8 Ventilation. 919.0 Food Service Appliances, Counter Appliances. 919.1 Vertical Clearance. 919.2 Clearance for Listed Appliances.
174	919.3 Clearance for Unlisted Appliances. 919.4 Mounting of Unlisted Appliances. 920.0 Household Cooking Appliances. 920.1 Electric Household Cooking Appliances. 920.2 Gas-Fired Household Cooking Appliances. 920.3 Floor-Mounted Units. 920.3.1 Clearance from Combustible Material. 920.3.2 Vertical Clearance Above Cooking Top. 920.4 Built-In Units. 920.4.1 Installation. 920.4.2 Vertical Clearance.
175	920.4.3 Horizontal Clearance. 920.4.4 Level Installation. Built-in household cooking 921.0 Cooking Appliances Listing. 921.1 Commercial Electric Ranges. 921.2 Commercial Wood-Fired Baking Ovens. 921.3 Oil-Burning Ranges. 922.0 Open-Top Broiler Units. 922.1 Listed Units. 922.2 Unlisted Units. 922.3 Protection Above Domestic Units. 922.4 Commercial Units. 923.0 Outdoor Cooking Appliances. 923.1 Listed Units. 923.2 Unlisted Units. 924.0 Illuminating Appliances. 924.1 Clearances for Listed Appliances. 924.2 Clearances for Unlisted Appliances. 924.2.1 Open-Flame Type.
176	924.3 Mounting on Buildings. 924.4 Mounting on Posts. 924.5 Appliance Pressure Regulators. 925.0 Incinerators and Crematories. 925.1 Field Constructed Commercial-IndustrialIncinerators. 925.2 Factory-Built Commercial Crematories. 925.3 Residential Incinerators. 926.0 Infrared Heaters. 926.1 Support. 926.2 Clearance. 926.3 Combustion and Ventilation Air. 926.3.1 Exhaust Openings. 926.4 Installation in Commercial Garages and Aircraft Hangars. 927.0 Pool Heaters. 927.1 Location. 927.2 Clearance. 927.3 Temperature or Pressure-Limiting Devices. 927.3.1 Pressure Relief Valve. TABLE 924.2.1 CLEARANCES FOR UNLISTED OUTDOOROPEN-FLAME ILLUMINATING APPLIANCES [NFPA 54:TABLE 10.15.2.2]
177	927.4 Bypass Valves. 927.5 Venting. 928.0 Refrigerators. 928.1 Clearance. 928.2 Venting or Ventilating Kits Approved for Usewith a Refrigerator. 929.0 Gas-Fired Toilets. 929.1 Clearance. 929.2 Installation on Combustible Floors. 929.3 Vents. 930.0 Appliances for Installation in Manufactured Housing. 930.1 General. 931.0 Small Ceramic Kilns. 931.1 General. 931.2 Installation. 931.3 Fuel-Gas Controls. 931.4 Electrical Equipment. 931.5 Installations Inside Buildings. 931.5.1 Kiln Clearances. 931.5.2 Hoods. 931.5.3 Gravity Ventilation Ducts. 931.5.4 Makeup Air.
178	931.5.5 Hood and Duct Clearances. 931.6 Exterior Installations. 932.0 Outdoor Open Flame Decorative Appliances. 932.1 General. 932.1.1 Listed Units. 932.1.2 Unlisted Units. 932.1.3 Connection to the Piping System. 933.0 Evaporative Cooling Systems. 933.1 General. 933.2 Location. 933.3 Access, Inspection, and Repair. 933.4 Installation. 933.4.1 Modifications to the Supporting Structure. 933.4.2 On the Ground. An evaporative cooler supported 933.4.3 On a Platform. An evaporative cooler supported 934.0 Refrigeration Appliances. 934.1 Self-Contained Refrigerators and Freezers. 934.2 Unit Coolers. 934.3 Self-Contained Mechanical Refrigeration Systems. 935.0 Ductless Mini-Split Systems Installation. 935.1 General. 936.0 Air Filter Appliances. 936.1 Electrostatic Air Cleaners. 936.2 High-Efficiency Particulate Air Filter Units. 937.0 Gaseous Hydrogen Systems. 937.1 General. 938.0 Compressed Natural Gas (CNG) Vehicular FuelSystems. 938.1 General.
180	Chapter 10 1001.0 General. 1001.1 Applicability. 1001.2 Boiler Rooms and Enclosures. 1001.3 Air for Combustion and Ventilation. 1001.4 Drainage. 1001.5 Mounting. 1001.5.1 Floors. 1001.6 Chimneys or Vents. 1002.0 Standards. 1002.1 General. 1002.2 Oil-Burning Boilers. 1002.2.1 Listing & Labeling. 1002.2.2 Installation. 1002.3 Electric Boilers. 1002.4 Solid-Fuel-Fired Boilers. 1002.5 Dual Purpose Water Heater. 1003.0 Detailed Requirements. 1003.1 Safety Requirements.
181	1003.2 Controls. 1003.2.1 Automatic Boilers. 1003.3 Gauges. 1003.4 Stack Dampers. 1003.5 Welding. 1004.0 Expansion Tanks. 1004.1 General. 1004.2 Open-Type Expansion Tanks. 1004.3 Closed-Type Systems. 1004.4 Minimum Capacity of Closed-Type Tank. Tables TABLE 1004.4(1) EXPANSION TANK CAPACITIES FOR GRAVITY HOT WATER SYSTEMS
182	1005.0 Safety or Relief Valve Discharge. 1005.1 General. 1005.2 Discharge Piping. 1005.3 Splash Shield. 1005.4 Hazardous Discharge. 1005.5 Vacuum Relief Valve. 1006.0 Shutoff Valves. 1006.1 General. 1007.0 Gas-Pressure Regulators. 1007.1 General. 1008.0 Low-Water Cutoff. 1008.1 General. 1009.0 Combustion Regulators – Safety Valves. 1009.1 General. TABLE 1004.4(2) EXPANSION TANK CAPACITIES FOR FORCED HOT WATER SYSTEMS
183	1010.0 Clearance for Access. 1010.1 General. 1010.2 Power Boilers. 1010.3 Steam-Heating Boilers, Hot Water Boilers, and Power Boilers. 1010.4 Package Boilers, Steam-Heating Boilers, and Hot-Water-Heating Boilers. 1011.0 Boilers, Stokers, and Steam Generators. 1011.1 General. 1012.0 Operating Adjustments and Instructions. 1012.1 General. 1013.0 Inspections and Tests. 1013.1 General. 1013.2 Operating Permit. 1013.3 Maintenance Inspection. 1013.4 Power and Miniature Boilers.
184	1013.5 Steam-Heating and Water-Heating Boilers. 1013.6 Automatic Steam-Heating Boilers. 1013.7 Unfired Pressure Vessels. 1014.0 Operation and Maintenance of Boilers and Pressure Vessels. 1014.1 General.
185	TABLE 1003.2.1 CONTROLS AND LIMIT DEVICES FOR AUTOMATIC BOILERS
188	Chapter 11 1101.0 General. 1101.1 Applicability. 1101.2 Equipment. Equipment for refrigerant recovery, Part I – Refrigeration Systems. 1102.0 Refrigeration Systems. 1102.1 General. 1102.2 Ammonia Refrigeration Systems. 1102.3 Refrigerants. 1103.0 Classification. 1103.1 Classification of Refrigerants. 1103.1.1 Safety Group. 1103.2 Classification of Refrigeration Systems. 1103.2.1 High-Probability System. 1103.2.2 Low-Probability System. 1103.3 Higher Flammability Refrigerants. 1104.0 Requirements for Refrigerant and Refrigeration System Use. 1104.1 System Selection. 1104.2 Refrigerant Concentration Limit.
189	1104.2.1 Volume Calculations. 1104.2.2 Nonconnecting Spaces. 1104.2.3 Ventilated Spaces. 1104.2.3.1 Closures. 1104.2.3.2 Plenums. 1104.2.3.3 Supply and Return Ducts. 1104.3 Institutional Occupancies. 1104.4 Industrial Occupancies and Refrigerated Rooms. 1104.5 Flammable Refrigerants. 1104.6 Applications for Human Comfort and for Nonindustrial Occupancies. 1104.7 Refrigerant Type and Purity. 1104.7.1 Recovered Refrigerants.
190	1104.7.2 Recycled Refrigerants. 1104.7.3 Reclaimed Refrigerants. 1104.7.4 Mixing. 1104.8 Changing Refrigerants. 1105.0 General Requirements. 1105.1 Human Comfort. 1105.2 Supports and Anchorage. 1105.3 Access. 1105.4 Illumination and Service Receptacles. 1105.5 Ventilation of Rooms Containing Condensing Units.
191	1105.5.1 Permanent Gravity Ventilation Openings. 1105.5.2 Mechanical Exhaust System. 1105.6 Prohibited Locations. 1105.7 Condensate. 1105.8 Defrost. 1105.9 Overflows. 1105.10 Condensate, Defrost, and Overflow Disposal. 1105.11 Refrigerant Port Protection. 1105.12 Storage. 1105.12.1 Quantity. 1106.0 Refrigeration Machinery Rooms. 1106.1 Where Required. 1106.1.1 Quantity. 1106.1.2 Equipment. 1106.1.3 A1 System. 1106.1.4 A1 Refrigerant. 1106.2 Refrigeration Machinery Room, General Requirements. 1106.2.1 Access.
192	1106.2.2 Openings. 1106.2.2.1 Detectors and Alarms. 1106.2.2.2 Refrigerant Detectors. 1106.2.3 Mechanical Ventilation. 1106.2.4 Ventilation. 1106.2.5 Emergency Ventilation-Required Airflow. 1106.2.5.1 Ventilation – A1, A2, A3, B1, B2L, B2 and B3 refrigerants. 1106.2.5.2 Ventilation – Group A2L Refrigerants.
193	1106.3 Normal Operation. 1106.4 Natural Ventilation. 1106.5 Combustion Air. 1106.6 Airflow. 1106.7 Ventilation Intake. 1106.8 Maximum Temperature. 1106.9 Refrigerant Parts in Air Duct. Tables TABLE 1106.2.5.2 REQUIRED AIRFLOW FOR GROUP A2L REFRIGERANTS
194	1106.10 Dimensions. 1106.11 Restricted Access. 1106.12 Exits. 1107.0 Machinery Room, Special Requirements. 1107.1 General. 1107.1.1 Flame-Producing Devices. 1107.1.2 Doors. 1107.1.3 Walls, Floors, and Ceilings. 1107.1.4 Machinery Rooms. 1107.1.5 Exterior Openings. 1107.1.6 Sealing. 1107.1.7 Group A2L and B2L Refrigerants. 1107.1.7.1 Mechanical Ventilation. 1107.1.7.2 Refrigeration Detectors. 1107.1.7.3 Machinery Rooms. 1107.1.8 Group A2, A3, B2, or B3 Refrigerants. 1107.1.9 Refrigeration Systems. 1107.1.10 Remote Control. 1108.0 Refrigeration Machinery Room Equipmentand Controls. 1108.1 General. 1108.2 Electrical. 1108.3 Emergency Shut-off.
195	1108.4 Installation, Maintenance, and Testing. 1108.5 Emergency Pressure Control System. 1109.0 Refrigeration Piping, Containers, and Valves. 1109.1 Materials. 1109.1.1 Copper and Copper Alloy Pipe. 1109.1.2 Copper Linesets. 1109.1.3 Iron and Steel. 1109.1.4 Prohibited Contact. Aluminum, zinc, magnesium, 1109.2 Joints. 1109.3 Penetration of Piping. 1109.4 Location of Refrigeration Piping. 1109.4.1 Protection from Mechanical Damage. 1109.5 Underground Piping. 1109.5.1 Piping in Concrete Floors. 1109.6 Support. 1109.7 Pipe Enclosure.
196	1109.8 Visual Inspection. 1109.9 Condensation. 1109.10 Identification. 1110.0 Valves. 1110.1 More than 6.6 Pounds of Refrigerant. 1110.2 More than 110 Pounds of Refrigerant. 1110.3 Support. 1110.4 Access. 1110.5 Identification. 1111.0 Pressure-Limiting Devices. 1111.1 Where Required. 1111.2 Setting. 1111.3 Location. 1111.4 Emergency Stop. 1112.0 Pressure-Relief Devices. 1112.1 General.
197	1112.2 Positive Displacement Compressor. 1112.3 Liquid-Containing Portions of Systems. 1112.4 Evaporators. 1112.5 Hydrostatic Expansion. 1112.5.1 Hydrostatic Expansion During Normal Operation. 1112.5.2 Hydrostatic Expansion During Maintenance. 1112.6 Actuation.
198	1112.7 Stop Valves Prohibited. 1112.8 Location. 1112.9 Materials. 1112.10 Pressure-Relief Device Settings. 1112.10.1 Rupture Member Setting. 1112.11 Discharge from Pressure-Relief Devices. 1112.11.1 Discharging Location Interior to Building. 1112.11.2 Discharging Location Exterior to Building. 1112.11.3 Internal Relief.
199	1112.11.4 Discharge Location, Special Requirements. 1112.11.4.1 Water (R-718). 1112.12 Discharge Piping. 1112.12.1 Piping Connection. 1112.12.2 Pipe Size. 1112.12.3 Maximum Length. 1112.12.4 Design Back Pressure. TABLE 1112.12.3 ATMOSPHERIC PRESSURE AT NOMINALINSTALLATION ELEVATION (Pa) [ASHRAE 15: TABLE 9.7.9.3.2]
200	1112.12.5 Simultaneous Operation. 1112.13 Rating of Pressure-Relief Device. 1112.14 Rating of Rupture Members and Fusible Plugs. 1113.0 Overpressure Protection. 1113.1 General. 1113.2 Type of Protection. 1113.3 Discharging Into Lowside of System. 1113.4 Parallel Pressure-Relief Devices. 1113.5 Discharge Capacity.
201	1113.6 Three-Way Valve. 1114.0 Special Discharge Requirements. 1114.1 General. 1114.2 Design Requirements. 1114.3 Testing. 1115.0 Labeling and Identification. 1115.1 General. 1115.2 Volume and Type. 1115.3 Permanent Sign. 1115.4 Marking of Pressure-Relief Devices. TABLE 1113.5 RELIEF DEVICES CAPACITY FACTOR [ASHRAE 15:TABLE 9.7.5]
202	1115.4.1 Rupture Members. 1115.4.2 Fusible Plugs. 1116.0 Testing of Refrigeration Equipment. 1116.1 Factory Tests. 1116.1.1 Testing Procedure. 1116.1.2 Applied Pressure. 1116.1.3 Design Pressure of 15 psig or Less. 1116.2 Field Tests. 1116.3 Test Gases. TABLE 1116.2 FIELD LEAK TEST PRESSURES (psig)
203	1116.4 Declaration. 1116.5 Brine Systems. 1117.0 Refrigerant-Containing Pressure Vessels. 1117.1 Inside Dimensions 6 inches or Less. 1117.1.1 Pressure-Relief Device. 1117.1.2 Fusible Plug. 1117.2 Inside Dimensions More than 6 inches. 1117.3 Pressure Vessels for 15 psig or Less. 1118.0 Maintenance and Operation. 1118.1 General. Part II – Cooling Towers. 1119.0 General. 1119.1 Applicability. 1120.0 Support and Anchorage. 1120.1 General. 1121.0 Drainage. 1121.1 General. 1122.0 Chemical Treatment Systems. 1122.1 General. 1122.2 Automated Control of Cycles of Concentration. 1123.0 Location. 1123.1 General.
204	1124.0 Electrical. 1124.1 General. 1125.0 Refrigerants and Hazardous Fluids. 1125.1 General. 1126.0 Drift Eliminators. 1126.1 General. Cooling towers, evaporative condensers,
205	TABLE 1102.3 REFRIGERANT GROUPS, PROPERTIES, AND ALLOWABLE QUANTITIES [ASHRAE 34: TABLE 4-1, TABLE 4-2]
210	TABLE 1104.1 PERMISSIBLE REFRIGERATION SYSTEMS
212	Chapter 12 1201.0 General. 1201.1 Applicability. 1201.2 Insulation. 1201.3 Water Hammer. 1201.4 Terminal Units. 1201.5 Return-Water Low-Temperature Protection. 1202.0 Protection of Potable Water Supply. 1202.1 Prohibited Sources. 1202.2 Chemical Injection. 1202.3 Compatibility. 1203.0 Capacity of Heat Source. 1203.1 Heat Source. 1203.2 Dual Purpose Water Heater. 1203.3 Tankless Water Heater. 1204.0 Identification of a Potable and Nonpotable Water System. 1204.1 General. 1204.2 Color and Information. 1204.3 Potable Water. 1204.4 Nonpotable Water. Tables TABLE 1203.2 WATER HEATERS
213	1204.5 Location of Piping Identification. 1204.6 Flow Directions. 1205.0 Installation, Testing, and Inspection. 1205.1 Operating Instructions. 1205.2 Pressure Testing. 1205.3 Flushing. 1206.0 Pressure and Safety Devices. 1206.1 General. 1206.2 Discharge Piping. 1207.0 Heating Appliances and Equipment. 1207.1 General. 1207.2 Boilers. 1207.2.1 Condensing Boilers. 1207.2.2 Noncondensing Boilers. 1207.3 Dual-Purpose Water Heaters. 1207.3.1 Temperature Limitations. 1207.4 Solar Heat Collector Systems. TABLE 1204.3 MINIMUM LENGTH OF COLOR FIELD AND SIZE OF LETTERS
214	1208.0 Circulators and Pumps. 1208.1 General. 1208.2 Mounting. 1208.3 Sizing. 1209.0 Expansion Tanks. 1209.1 General. 1209.2 Installation. 1209.3 Open-Type Expansion Tanks. 1209.4 Closed-Type Tanks. 1209.5 Sizing. 1210.0 Materials. 1210.1 Piping, Tubing, and Fittings. 1210.2 Expansion and Contraction. 1210.3 Hangers and Supports. 1210.4 Oxygen Diffusion Corrosion. 1211.0 Joints and Connections. 1211.1 General. 1211.2 Chlorinated Polyvinyl Chloride (CPVC) Pipe.
215	TABLE 1210.1 MATERIALS FOR HYDRONIC SYSTEM PIPING, TUBING, AND FITTINGS
216	1211.3 CPVC/AL/CPVC Plastic Pipe and Joints. 1211.4 Copper or Copper Alloy Pipe and Tubing. 1211.5 Cross-Linked Polyethylene (PEX) Pipe.
217	1211.6 Cross-Linked Polyethylene/Aluminum/Cross-Linked Polyethylene (PEX-AL-PEX) Pipe. 1211.7 Ductile Iron Pipe. 1211.8 Polyethylene (PE) Plastic Pipe/Tubing. 1211.9 Polyethylene/Aluminum/Polyethylene (PEAL-PE). 1211.10 Polyethylene of Raised Temperature (PE-RT).
218	1211.11 Polypropylene (PP) Pipe. 1211.12 Polyvinyl Chloride (PVC) Pipe. 1211.13 Steel Pipe and Tubing. 1211.14 Joints Between Various Materials. 1211.14.1 Copper or Copper Alloy Pipe or Tubingto Threaded Pipe Joints. 1211.14.2 Plastic Pipe to Other Materials. 1212.0 Valves. 1212.1 General. 1212.2 Where Required. 1212.3 Heat Exchanger. 1212.4 Pressure Vessels. 1212.5 Pressure Reducing Valves.
219	1212.6 Equipment, Components, and Appliances. 1212.7 Expansion Tank. 1212.8 Flow Balancing Valves. 1212.9 Mixing or Temperature Control Valves. 1212.10 Thermosiphoning. 1212.11 Air Removal Device or Air Vents. 1213.0 System Controls. 1213.1 Water Temperature Controls. 1213.2 Operating Steam Controls. 1213.2.1 Water-Level Controls. 1213.3 Occupied Spaces. 1214.0 Pressure and Flow Controls. 1214.1 Balancing. 1214.2 Low-Water Control. 1214.3 Flow-Sensing Devices. 1214.4 Automatic Makeup Fluid. 1214.5 Differential Pressure Regulation. 1214.5.1 Differential Pressure Bypass Valve. 1214.6 Air-Removal Device. 1214.7 Air-Separation Device. 1214.8 Secondary Loops. 1215.0 Hydronic Space Heating. 1215.1 General. 1215.2 Installation.
220	1215.3 Freeze Protection. 1215.4 Balancing. 1215.5 Heat Transfer Fluid. 1216.0 Steam Systems. 1216.1 Steam Traps. 1216.2 Sloping for Two-Pipe System. 1216.3 Sloping for One-Pipe System. 1216.4 Automatic Air Vents. 1216.5 Condensate Flow. 1216.6 Steam-Distribution Piping. 1217.0 Radiant Heating and Cooling. 1217.1 Installation. 1217.1.1 Manifolds. Manifolds shall be equipped with 1217.2 Radiant Under-Floor Heating. 1217.3 Radiant Cooling Systems. 1217.4 Tube Placement. 1217.5 Poured Floor Structural Concrete Slab Systems (Thermal Mass). 1217.5.1 Slab Penetration Tube and Joint Protection. TABLE 1217.4 MAXIMUM LENGTH OF CONTINUOUS TUBING FROM A SUPPLY-AND-RETURN MANIFOLD ARRANGEMENT
221	1217.5.2 Insulation. 1217.5.3 Joist Systems and Subfloors. 1217.5.4 Wall and Ceiling Panels. 1217.6 Radiant Heating and Cooling Panels. 1217.6.1 Electric Heating Panel Systems. 1217.6.2 Radiant Wall and Ceiling Panels. 1218.0 Heat Exchangers. 1218.1 General. 1219.0 Indirect-Fired Domestic Hot-Water StorageTanks. 1219.1 General. 1220.0 Auxiliary Systems. 1220.1 Use of Chemical Additives and Corrosive Fluids.
222	1220.2 Snow and Ice Melt Controls. 1220.2.1 Tube Placement. 1220.2.2 Poured Concrete Slab Systems (Thermal Mass). 1220.2.3 Slab Penetration Tube and Joint Protection. 1220.2.4 Concrete Slab Preparation. 1220.2.5 Insulation. 1220.2.6 Testing and Flushing. 1220.3 Hydronic Makeup Air Units. 1221.0 Piping Installation. 1221.1 General. 1221.2 Embedded Piping Materials and Joints. 1221.2.1 Steel Pipe. 1221.2.2 Copper Tubing. 1221.2.3 Plastics. 1221.3 Pressure Testing. TABLE 1220.2.1 LOOP LENGTHS FOR SNOW AND ICE MELT SYSTEMS
223	1221.4 System Drainage. 1221.5 Condensate Drainage. 1221.6 Clearance to Combustibles.
224	Chapter 13 1301.0 Scope of Gas Piping. 1301.1 Applicability. 1302.0 Coverage of Piping System. 1302.1 General. 1302.2 Piping System Requirements. 1302.3 Applications. 1303.0 Inspection. 1303.1 Inspection Notification. 1303.2 Excavation. 1303.3 Type of Inspections. 1303.3.1 Rough Piping Inspection. 1303.3.2 Final Piping Inspection.
225	1303.3.3 Test Gauges. 1303.3.3.1 Pressure Tests (10 psi or less). 1303.3.3.2 Pressure Tests (greater than 10psi to 100 psi). 1303.3.3.3 Pressure Tests (exceeding 100psi). 1303.3.3.4 Pressure Range. 1303.4 Inspection Waived. 1304.0 Certificate of Inspection. 1304.1 Issuance. 1304.2 Gas Supplier. 1304.3 Unlawful. 1305.0 Authority to Render Gas Service. 1305.1 Authorized Personnel. 1305.2 Outlets. 1306.0 Authority to Disconnect. 1306.1 Disconnection. 1306.2 Notice. 1306.3 Capped Outlets. 1307.0 Temporary Use of Gas. 1307.1 General. 1308.0 Gas Piping System Design, Materials, and Components. 1308.1 Installation of Piping System. 1308.1.1 Addition to Existing System. 1308.2 Provision for Location of Point of Delivery. 1308.3 Interconnections Between Gas Piping Systems.
226	1308.3.1 Interconnections for Stand by Fuels. 1308.4 Sizing of Gas Piping Systems. 1308.4.1 Maximum Gas Demand. 1308.4.2 Sizing Methods. 1308.4.3 Allowable Pressure Drop. 1308.5 Acceptable Piping Materials and Joining Methods. 1308.5.1 Materials. 1308.5.1.1 Other Materials. 1308.5.2 Metallic Pipe. 1308.5.2.1 Steel and Wrought-Iron. 1308.5.2.2 Copper and Copper Alloy. Tables TABLE 1308.4.1 APPROXIMATE GAS INPUT FOR TYPICALAPPLIANCES [NFPA 54:TABLE A5.4.2.1]
227	1308.5.2.3 Aluminum Alloy. 1308.5.3 Metallic Tubing. 1308.5.3.1 Steel. 1308.5.3.2 Copper and Copper Alloy. 1308.5.3.3 Aluminum Alloy. 1308.5.3.4 Corrugated Stainless Steel. 1308.5.4 Plastic Pipe, Tubing, and Fittings. 1308.5.4.1 Regulator Vent Piping. 1308.5.4.2 Anodeless Risers. 1308.5.4.2.1 Factory-Assembled Anodeless Risers. 1308.5.4.2.2 Service Head Adapters and Field-Assembled Anodeless Risers. 1308.5.4.2.3 Undiluted Liquefied Petroleum Gas Piping. 1308.5.5 Workmanship and Defects. 1308.5.6 Protective Coating. 1308.5.7 Metallic Pipe Threads. 1308.5.7.1 Damaged Threads. 1308.5.7.2 Number of Threads. TABLE 1308.5.7.2 SPECIFICATIONS FOR THREADING METALLIC PIPE [NFPA 54:TABLE 5.6.7.3]
228	1308.5.7.3 Thread Joint Compounds. 1308.5.8 Metallic Piping Joints and Fittings. 1308.5.8.1 Pipe Joints. 1308.5.8.2 Tubing Joints. 1308.5.8.3 Flared Joints. 1308.5.8.4 Metallic Pipe Fittings (Including Valves, Strainers, Filters). 1308.5.9 Plastic Piping, Joints, and Fittings. 1308.5.9.1 Joint Design. 1308.5.9.2 Heat-Fusion Joint. 1308.5.9.3 Compression-Type Mechanical Joints.
229	1308.5.9.4 Liquefied Petroleum Gas Piping Systems. 1308.5.10 Flange Specification. 1308.5.10.1 Steel Flanges. 1308.5.10.2 Non-Ferrous Flanges. 1308.5.10.3 Ductile Iron Flanges. 1308.5.10.4 Dissimilar Flange Connections. 1308.5.10.5 Flange Facings. 1308.5.10.6 Lapped Flanges. 1308.5.11 Flange Gaskets. 1308.5.11.1 Flange Gasket Materials. 1308.5.11.2 Metallic Flange Gaskets. 1308.5.11.3 Non-Metallic Flange Gaskets. 1308.5.11.4 Full-Face Flange Gasket. 1308.5.11.5 Separated Flanges. 1308.6 Gas Meters. 1308.6.1 Location. 1308.6.1.1 Subject to Damage. Gas meters shall 1308.6.1.2 Extreme Temperatures. 1308.6.2 Supports. 1308.6.3 Meter Protection. 1308.6.4 Identification. 1308.7 Gas Pressure Regulators. 1308.7.1 Listing. 1308.7.2 Location. 1308.7.3 Regulator Protection. 1308.7.4 Venting of Line Pressure Regulators.
230	1308.7.5 Venting of Gas Appliance Pressure Regulators. 1308.7.6 Discharge of Vents. 1308.7.7 Bypass Piping. 1308.7.8 Identification. 1308.8 Overpressure Protection. 1308.9 Pressure Limitation Requirements. 1308.9.1 Overpressure Protection Required. 1308.9.2 Overpressure Protection Devices. 1308.9.3 Detection of Failure. 1308.9.4 Flow Capacity. 1308.10 Backpressure Protection.
231	1308.10.1 Protective Devices. 1308.11 Low-Pressure Protection. 1308.12 Shutoff Valves. 1308.13 Expansion and Flexibility. 1308.13.1 Special Local Conditions. 1309.0 Excess Flow Valve. 1309.1 General. 1310.0 Gas Piping Installation. 1310.1 Piping Underground. 1310.1.1 Cover Requirements. 1310.1.2 Trenches. 1310.1.2.1 Backfilling. 1310.1.3 Protection Against Corrosion. 1310.1.3.1 Zinc Coating. 1310.1.3.2 Underground Piping. 1310.1.3.3 Cathodic Protection. 1310.1.3.4 Sacrificial Anodes.
232	1310.1.3.5 System Failing Tests. 1310.1.3.6 Impressed Current Cathodic Protection. 1310.1.3.7 Documentation. 1310.1.3.8 Dissimilar Metals. 1310.1.3.9 Steel Risers. 1310.1.4 Protection Against Freezing. 1310.1.5 Piping through Foundation Wall. 1310.1.6 Piping Underground Beneath Buildings. 1310.1.6.1 Conduit with One End Terminating Outdoors. 1310.1.6.2 Conduit with Both Ends Terminating Indoors. 1310.1.7 Plastic Piping. 1310.1.7.1 Connections Between Metallic and Plastic Piping. 1310.1.7.2 Tracer Wire. 1310.2 Installation of Piping.
233	1310.2.1 Building Structure. 1310.2.2 Gas Piping to be Sloped. 1310.2.2.1 Ceiling Locations. 1310.2.3 Prohibited Locations. 1310.2.4 Hangers, Supports, and Anchors. 1310.2.4.1 Spacing. 1310.2.4.2 Expansion and Contraction. 1310.2.4.3 Piping on Roof Tops. 1310.2.5 Removal of Piping. 1310.3 Concealed Piping in Buildings. 1310.3.1 Connections. 1310.3.2 Piping in Partitions. 1310.3.3 Tubing in Partitions. 1310.3.4 Piping in Floors. TABLE 1310.2.4.1 SUPPORT OF PIPING [NFPA 54: TABLE 7.2.5.2]
234	1310.4 Piping in Vertical Chases. 1310.4.1 Pressure Reduction. 1310.4.2 Construction. 1310.4.3 Ventilation. 1310.5 Maximum Design Operating Pressure. 1310.5.1 LP-Gas Systems. 1310.6 Appliance Overpressure Protection. 1310.7 Gas Pipe Turns. 1310.7.1 Metallic Pipe. 1310.7.2 Plastic Pipe.
235	1310.7.3 Elbows. 1310.8 Drips and Sediment Traps. 1310.8.1 Location of Drips. 1310.8.2 Sediment Traps. 1310.9 Outlets. 1310.9.1 Cap Outlets. 1310.9.1.1 Appliance Shutoff Valves. Appliance 1310.10 Branch Pipe Connection. 1310.11 Manual Gas Shutoff Valves. 1310.11.1 Valves Controlling Multiple Systems. 1310.11.1.1 Shutoff Valves for Multiple HouseLines. 1310.11.2 Emergency Shutoff Valves. 1310.11.3 Shutoff Valve for Laboratories. 1310.12 Prohibited Devices.
236	1310.13 Systems Containing Gas-Air Mixtures Outsidethe Flammable Range. 1310.14 Systems Containing Flammable Gas-AirMixtures. 1310.14.1 Required Components. 1310.14.2 Optional Components. 1310.14.3 Additional Requirements. 1310.14.4 Special Requirements for Mixing Blowers. 1310.14.5 Installation of Gas-Mixing Machines. 1310.14.6 Use of Automatic Firechecks, Safety Blowouts, or Backfire Preventers.
237	1311.0 Electrical Bonding and Grounding. 1311.1 Pipe and Tubing Other than CSST. 1311.2 Bonding of CSST Gas Piping. 1311.2.1 Bonding Jumper Connection. 1311.2.2 Bonding Jumper Size. 1311.2.3 Bonding Jumper Length. 1311.2.4 Bonding Connections. 1311.2.5 Devices Used for Bonding. 1311.3 Grounding Conductor of Electrode. 1311.4 Lightning Protection System. 1311.5 Electrical Circuits. 1311.6 Electrical Connections. 1311.6.1 Safety Control. 1312.0 Appliance Connections to Building Piping. 1312.1 Connecting Appliances and Equipment. 1312.1.1 Commercial Cooking Appliances. 1312.1.2 Restraining Device. 1312.2 Suspended Low-Intensity Infrared Tube Heaters.
238	1312.3 Use of Gas Hose Connectors. 1312.3.1 Indoor. 1312.3.2 Outdoor. 1312.4 Injection (Bunsen) Burners. 1312.5 Connection of Portable and Mobile Industrial Appliances. 1312.5.1 Swivel Joints or Couplings. 1312.5.2 Metal Flexible Connectors. 1312.5.3 Flexible Connectors. 1312.6 Appliance Shutoff Valves and Connections. 1312.7 Quick-Disconnect Devices. 1312.8 Gas Convenience Outlets. 1312.9 Sediment Trap.
239	1312.10 Installation of Piping. 1312.11 Liquefied Petroleum Gas Facilities and Piping. 1313.0 Pressure Testing and Inspection. 1313.1 Piping Installations. 1313.1.1 Inspection Requirements. 1313.1.2 Repairs and Additions. 1313.1.3 New Branches. 1313.1.4 Piping System. 1313.1.5 Regulators and Valves. 1313.1.6 Test Medium. 1313.2 Test Preparation. 1313.2.1 Pipe Joints. 1313.2.2 Expansion Joints. 1313.2.3 Appliances and Equipment. 1313.2.4 Designed for (less than) Operating Pressures. 1313.2.5 Designed for (equal to or more than) Operating Pressures. 1313.2.6 Safety. 1313.3 Test Pressure. Figures FIGURE 1312.9 METHOD OF INSTALLING A TEE FITTING SEDIMENT TRAP [NFPA 54: FIGURE 9.6.8]
240	1313.4 Detection of Leaks and Defects. 1313.4.1 Detecting Leaks. 1313.4.2 Repair or Replace. 1313.5 Piping System Leak Test. 1313.5.1 Turning Gas On. 1313.5.2 Leak Check. 1313.5.3 Placing Appliances and Equipment in Operation. 1313.6 Purging Requirements. 1313.6.1 Piping Systems Required to be Purged Outdoors. 1313.6.1.1 Removal from Service. 1313.6.1.2 Placing in Operation. 1313.6.1.3 Outdoor Discharge of Purged Gases. TABLE 1313.6.1 SIZE AND LENGTH OF PIPING [NFPA 54: TABLE 8.3.1]
241	1313.6.1.4 Combustible Gas Indicator. 1313.6.2 Piping Systems Allowed to be Purged Indoors or Outdoors. 1313.6.2.1 Purging Procedure. 1313.6.2.2 Combustible Gas Detector. 1313.6.3 Purging Appliances and Equipment. 1314.0 Required Gas Supply. 1314.1 General. 1314.2 Volume. 1314.3 Gas Appliances. 1314.4 Size of Piping Outlets. 1315.0 Required Gas Piping Size. 1315.1 Pipe Sizing Methods. 1315.1.1 Longest Length Method. 1315.1.2 Branch Length Method.
242	1315.1.3 Hybrid Pressure. 1315.2 Tables for Sizing Gas Piping Systems. 1315.3 Sizing Equations. 1315.4 Sizing of Piping Sections. 1315.5 Engineering Methods. 1315.6 Variable Gas Pressures. TABLE 1315.3 Cr AND Y FOR NATURAL GAS AND UNDILUTED PROPANE AT STANDARD CONDITIONS [NFPA 54:TABLE 6.4.2]
243	FIGURE 1315.1.1 EXAMPLE ILLUSTRATING USE OF TABLE 1308.4.1 AND TABLE 1315.2(1)
244	TABLE 1315.2(1) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(b)]
245	TABLE 1315.2(2) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(c)]
246	TABLE 1315.2(3) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(d)]
247	TABLE 1315.2(4) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(e)]
248	TABLE 1315.2(5) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(f)]
249	TABLE 1315.2(6) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(g)]
250	TABLE 1315.2(7) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(h)]
251	TABLE 1315.2(8) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(i)]
252	TABLE 1315.2(9) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(j)]
253	TABLE 1315.2(10) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(k)]
254	TABLE 1315.2(11) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(l)]
255	TABLE 1315.2(12) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(m)]
256	TABLE 1315.2(13) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(n)]
257	TABLE 1315.2(14) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.2(o)]
258	TABLE 1315.2(15) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.2(p)]
259	TABLE 1315.2(16) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.2(q)]
260	TABLE 1315.2(17) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.2(r)]
261	TABLE 1315.2(18) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.2(s)]
262	TABLE 1315.2(19) POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6.2(t)]
263	TABLE 1315.2(20) POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6.2(u)]
264	TABLE 1315.2(21) POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6.2(v)]
265	TABLE 1315.2(22) POLYETHYLENE PLASTIC TUBING [NFPA 54: TABLE 6.2(w)] TABLE 1315.2(23) POLYETHYLENE PLASTIC TUBING [NFPA 54: TABLE 6.2(x)]
266	TABLE 1315.2(24) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.3(a)]
267	TABLE 1315.2(25) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.3(b)]
268	TABLE 1315.2(26) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.3(c)]
269	TABLE 1315.2(27) SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.3(d)]
270	TABLE 1315.2(28) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.3(e)]
271	TABLE 1315.2(29) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.3(f)]
272	TABLE 1315.2(30) SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.3(g)]
273	TABLE 1315.2(31) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.3(h)]
274	TABLE 1315.2(32) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.3(i)]
275	TABLE 1315.2(33) CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.3(j)]
276	TABLE 1315.2(34) POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6.3(k)]
277	TABLE 1315.2(35) POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6.3(l)]
278	TABLE 1315.2(36) POLYETHYLENE PLASTIC TUBING [NFPA 54: TABLE 6.3(m)]
280	Chapter 14 1401.0 General. 1401.1 Applicability. 1402.0 Permit. 1402.1 General. 1403.0 Plans Required. 1403.1 General. 1404.0 Workmanship. 1404.1 General. 1405.0 Inspections. 1405.1 General. 1405.2 Required Inspections. 1405.2.1 Rough Piping Inspection. 1405.2.2 Final Piping Inspection. 1405.3 Other Inspections. 1406.0 Pipe, Tubing, and Fittings. 1406.1 General. 1406.2 Hazardous Process Piping (HPP). 1406.2.1 Installation in Exit Corridors and AboveOther Occupancies.
281	1406.2.1.1 Automatic Sprinklers. 1406.2.1.2 Ventilation. 1406.2.1.3 Receptor. 1406.2.1.4 Separation. 1406.2.1.5 Emergency Shutoff Valves. 1406.2.1.6 Electrical Wiring. 1406.3 Special Requirements for HPP Gases. 1406.3.1 Special Provisions. 1406.3.2 Piping and Tubing Installation. 1406.3.3 Gas-Detection System.
282	Chapter 15 1501.0 General. 1501.1 Applicability.
284	Chapter 16 1601.0 Stationary Fuel Cell Power Plants. 1601.1 General. 1602.0 Stationary Gas Engines and Generators. 1602.1 General. 1602.2 Connection to the Gas Supply Piping. 1602.3 Stationary Engine Generators.
286	Chapter 17 1701.0 General. 1701.1 Standards. TABLES TABLE 1701.1 REFERENCED STANDARDS
297	TABLE 1701.2 STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES
301	ABBREVIATIONS IN TABLE1701.1 AND TABLE 1701.2
302	Appendix Table of Contents
304	APPENDIX A RESIDENTIAL PLAN EXAMINER REVIEW FORM FOR HVAC SYSTEM DESIGN (Loads, Equipment, Ducts) [ACCA]
306	APPENDIX B PROCEDURES TO BE FOLLOWED TO PLACE GAS EQUIPMENT IN OPERATION B 101.0 Adjusting the Burner Input. B 101.1 Adjusting Input. B 101.2 High Altitude. B 102.0 Primary Air Adjustment. B 102.1 General. B 103.0 Safety Shutoff Devices. B 103.1 General. B 104.0 Automatic Ignition. B 104.1 General. B 105.0 Protective Devices. B 105.1 General. B 106.0 Checking the Draft. B 106.1 General. B 107.0 Operating Instructions. B 107.1 General.
308	APPENDIX C INSTALLATION AND TESTING OF OIL (LIQUID) FUEL-FIRED EQUIPMENT C 101.0 General. C 101.1 Applicability. C 102.0 Definitions.
309	C 103.0 Standards and Accepted Practices. C 103.1 General. C 104.0 Approval of Equipment. C 104.1 General. C 105.0 Placing Equipment in Operation. C 105.1 General. C 106.0 Pilot Operation. C 106.1 General. C 107.0 Burner Operation. C 107.1 General. C 108.0 Method of Test. C 108.1 General Test Methods.
311	C 109.0 Special Requirements Based on Btu/h Input. C 109.1 General.
314	APPENDIX D FUEL SUPPLY: MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL VEHICLE PARKS D 101.0 Fuel Gas Piping Systems. D 101.1 General. D 101.2 Gas Supply Connections. D 101.3 Location of Gas Supply Connection. D 101.4 Recreational Vehicle Park Fuel-Gas Equipmentand Installations. D 102.0 Single and Multiple Manufactured Home SiteFuel Supply Systems. D 102.1 Underground Installation. D 102.1.1 Open-Ended Gastight Conduit. D 102.1.2 Requirements. D 103.0 Manufactured Home Site Gas Shutoff Valve. D 103.1 General. D 104.0 Gas Meters. D 104.1 Support of Meters. D 104.2 Location of Meters. D 104.3 Meter Shutoff Valve or Cock. D 105.0 Cathodic Protection Requirements. D 105.1 General.
315	D 106.0 Manufactured Home Community LPG Supply Systems. D 106.1 General. D 107.0 Required Gas Supply. D 107.1 General. D 108.0 Gas Pipe Sizing and Pressure. D 108.1 Size. D 108.2 Pressure. D 109.0 Gas Piping Materials. D 109.1 Metal. D 109.2 Protection Coatings for Metal Gas Piping. D 109.3 Plastic. D 110.0 Gas Piping Installations. D 110.1 Minimum Burial Below Ground Level and Clearances. D 110.2 Metallic Gas Piping. D 110.2.1 Cathodic Protection. Table TABLE D 107.1 DEMAND FACTORS FOR USE IN CALCULATING GAS PIPING SYSTEMS IN M/H COMMUNITIES
316	D 110.2.2 Underground Metallic Systems. D 110.3 Plastic Gas Piping. D 110.4 Gas Piping System Shutoff Valve. D 111.0 Liquefied Petroleum Gas Appliances. D 111.1 General. D 112.0 Oil Supply. D 112.1 General. D 112.2 Minimum Oil Supply Tank Size. D 112.3 Oil Supply Connections. D 113.0 Fuel Supply Systems Installation. D 113.1 Flexible Gas Connector.
317	D 113.2 Use of Approved Pipe and Fittings of Extension. D 113.3 Mechanical Protection. D 113.4 Special Rules on Atmospherically Controlled Regulators. D 113.5 Fuel Gas Piping Test. D 113.5.1 Procedures. D 113.5.2 Warning. D 113.5.3 Vents. D 113.6 Oil Tanks. D 113.6.1 Installation. D 113.6.2 Capacity. D 113.6.3 Location. D 113.6.4 Vent. D 113.6.5 Liquid Level. D 113.6.6 Fill Opening. D 114.0 Manufactured Home Accessory Building Fuel Supply Systems. D 114.1 General. D 115.0 Community Building Fuel Supply Systems in Manufactured Home Communities. D 115.1 Fuel Gas Piping and Equipment Installations. D 115.2 Oil Supply Systems in M/H Communities.
318	D 115.3 Oil-Burning Equipment and Installation. D 115.4 Inspection and Tests.
320	APPENDIX E SUSTAINABLE PRACTICES E 101.0 General. E 101.1 Applicability. The purpose of this appendix is to E 101.2 Definition of Terms. For the purposes of this code, E 201.0 Definitions. E 201.1 Cycles of Concentration for Cooling Towers. E 201.2 Duct Wall Penetrations. Includes pipe, tubing, E 201.3 Energy Star.A joint program of the U.S. Environmental E 201.4 Geothermal. Renewable energy generated by deepearth. E 201.5 Heating Seasonal Performance Factor(HSPF). E 201.6 Integrated Energy Efficiency Ratio (IEER). A E 201.7 Integrated Part-Load Value (IPLV). A single-number E 201.8 Joint, Transverse. Connections of two duct sections E 201.9 Maintenance. The upkeep of property or equipment E 201.10 Minimum Efficiency Reporting Value(MERV). E 201.11 Multi-Occupant Spaces. Indoor spaces used for E 201.12 Recirculation System. A system of hot water E 201.13 Seam, Longitudinal. Joints oriented in the direction E 201.14 Seasonal Energy Efficiency Ratio (SEER). E 301.0 General Regulations. E 301.1 Installation. Mechanical systems covered by this E 301.2 Qualifications. Where permits are required, the E 302.0 Disposal of Liquid Waste. E 302.1 Disposal. It shall be unlawful for a person to cause, E 302.2 Connections to Plumbing System Required. E 303.0 Abandonment. E 303.1 General. An abandoned system or part thereof covered
321	E 401.0 Water Conservation and Efficiency. E 401.1 General. The provisions of this section establish E 402.0 Meters. E 402.1 Required. A water meter shall be required for E 402.2 Consumption Data. A means of communicating E 402.3 Access. Meters and submeters shall be accessible. E 403.0 HVAC Water Use. E 403.1 Once-Through Cooling. Once-through cooling E 403.2 Cooling Towers and Evaporative Coolers. E 403.3 Cooling Tower Makeup Water. Not less than 5 E 403.4 Evaporative Cooler Water Use. Evaporative E 403.4.1 Overflow Alarm. Cooling systems shall be E 403.4.2 Automatic Pump Shut-Off. Cooling systems E 403.4.3 Cooler Reservoir Discharge. A water E 403.4.4 Discharge Water Reuse. Discharge water E 403.4.5 Discharge Water to Drain. Where discharge E 403.5 Use of Reclaimed (Recycled) and On-SiteTreated Nonpotable Water for Cooling. Where E 403.5.1 Drift Eliminator.A drift eliminator shall be E 403.5.2 Disinfection.A biocide shall be used to treat
322	E 501.0 Heating, Ventilation, and Air-Conditioning Systems and Equipment – Energy Efficiency. E 501.1 Scope. E 502.0 Heating, Ventilation, and Air-Conditioning Low-Rise Residential Buildings. E 502.1 General. E 502.2 Heating, Ventilating, and Air-Conditioning Systems and Equipment. E 502.2.1 Non-Residential Type Systems and Equipment. E 502.3 Balancing. E 502.3.1 Balancing Dampers. E 502.4 Ducts. E 502.4.1 Insulation for Ducts. E 502.4.2 Ducts and Register Penetrations. E 502.4.3 Duct Leakage Test. E 502.4.3.1 Duct Leakage Verification Test. E 502.4.4 Duct Sizing. E 502.5 Insulation for Piping. E 502.6 Ventilation and Combustion Air. E 502.6.1 Combustion Air. E 502.7 Electric Heating Systems.
323	E 502.7.1 Wall, Floor, or Ceiling Electric-Resistance Heating. E 502.7.2 Electric Central Warm Air Heating. E 502.8 Bath Ceiling Units. TABLE E 502.5 MINIMUM PIPE INSULATION THICKNESS TABLE E 502.6 VENTILATION AIR
324	E 502.9 HVAC Equipment, Rated Combinations. E 502.10 Controls. E 502.10.1 Initial Control Setting. The control shall E 502.10.2 Ventilation Control. E 502.10.3 Humidity Control. E 502.10.3.1 Cooling. E 502.10.4 Freeze Protection Systems. E 502.10.5 Other Controls. E 502.11 Whole House Fans. E 502.12 Dampers. E 503.0 Heating, Ventilation, and Air-Conditioning –Other than Low-Rise Residential Buildings. E 503.1 General. TABLE E 502.9 MINIMUM REQUIREMENTS FOR NON-FEDERALLY COVERED HVAC EQUIPMENT
325	E 503.1.1 New Buildings. E 503.1.2 Additions to Existing Buildings. E 503.1.3 Alterations to Heating, Ventilating, Air-Conditioning, and Refrigeration in Existing Buildings. E 503.1.3.1 New Cooling Systems. E 503.1.3.2 Existing Cooling Systems. E 503.1.3.3 Ductwork. E 503.1.3.4 Piping. E 503.2 Compliance Path(s). E 503.2.1 Projects Using Energy Cost Budget Method. E 503.3 Simplified Approach Option for HVAC Systems. E 503.3.1 Criteria.
326	E 503.3.2 Climate Zone Determination. E 503.4 Mandatory Provisions.
327	E 503.4.1 Water-Cooled Centrifugal Chilling Packages.
328	E 503.4.1.1 Positive Displacement (air- and water-cooled) Chilling Packages. E 503.4.2 Equipment not Listed. E 503.4.3 Verification of Equipment Efficiencies. E 503.4.4 Labeling. E 503.4.4.1 Packaged Terminal Air Conditioners. E 503.4.5 Load Calculations. E 503.4.5.1 Pump Head. E 503.4.6 Zone Thermostatic Controls. E 503.4.6.1 Dead Band.
329	E 503.4.6.2 Setpoint Overlap Restriction. E 503.4.6.3 Off-Hour Controls. E 503.4.6.3.1 Automatic Shutdown. E 503.4.6.3.2 Setback Controls. Heating E 503.4.6.3.3 Optimum Start Controls. E 503.4.6.3.4 Zone Isolation.
330	E 503.4.6.4 Ventilation System Controls. E 503.4.6.4.1 Shutoff Damper Controls. E 503.4.6.4.2 Dampers Leakage. E 503.4.6.4.3 Ventilation Fan Controls. E 503.4.6.5 Enclosed Parking Garage Ventilation. TABLE E 503.4.6.4.2 MAXIMUM DAMPER LEAKAGE
331	E 503.4.6.6 Heat Pump Auxiliary Heat Control. E 503.4.6.7 Humidification and Dehumidification. E 503.4.6.8 Freeze Protection and Snow or Ice Melting Systems. E 503.4.6.9 Ventilation Controls for High-Occupancy Areas. E 503.4.6.10 Outdoor Heating. E 503.4.6.11 Heated or Cooled Vestibules. E 503.4.6.12 Direct Digital Control (DDC) Requirements.
332	E 503.4.6.12.1 DDC Applications. E 503.4.6.12.2 DDC Controls. E 503.4.6.12.3 DDC Display. E 503.4.6.13 Economizer Fault Detection Diagnostics (FDD). TABLE E 503.4.6.12.1 DDC APPLICATIONS AND QUALIFICATIONS
333	E 503.4.7 HVAC System Construction and Insulation. E 503.4.7.1 Insulation. E 503.4.7.1.1 Duct and Plenum Insulation. E 503.4.7.1.2 Piping Insulation. E 503.4.7.1.3 Sensible Heating Panel. E 503.4.7.1.4 Radiant Floor Heating. E 503.4.7.2 Ductwork and Plenum Leakage.
334	E 503.4.7.2.1 Duct Leakage Tests. E 503.5 Prescriptive Path, Economizers.
335	E 503.5.1 Air Economizers, Design Capacity. E 503.5.1.1 Control Signal. E 503.5.1.2 High-Limit Shutoff. E 503.5.1.3 Dampers. E 503.5.1.4 Relief of Excess Outdoor Air. E 503.5.1.5 Sensor Accuracy. E 503.5.2 Fluid Economizers, Design Capacity. TABLE E 503.5(1) MINIMUM FAN-COOLING UNIT SIZEWHERE AN ECONOMIZER IS REQUIRED TABLE E 503.5(2) ELIMINATE REQUIRED ECONOMIZER FOR COMFORT COOLING BY INCREASING COOLING EFFICIENCY
336	E 503.5.2.1 Maximum Hydronic Pressure Drop. E 503.5.3 Integrated Economizer Control. TABLE E 503.5.1.2 HIGH-LIMIT SHUTOFF CONTROL SETTINGS FOR AIR ECONOMIZERS2 TABLE E 503.5.2 WATER ECONOMIZER SIZING DRY-BULB AND WET-BULB REQUIREMENTS FOR COMPUTER ROOMS
337	E 503.5.4 Economizer Heating System Impact. E 503.5.4.1 Economizer Humidification SystemImpact. E 503.5.5 Simultaneous Heating and Cooling Limitation, Zone Controls. TABLE E 503.5.3 DX COOLING STAGE REQUIREMENTS FOR MODULATING AIRFLOW UNITS
338	E 503.5.5.1 Supply Air Temperature Reheat Limit. E 503.5.5.2 Hydronic System Controls. E 503.5.5.2.1 Three-Pipe System. E 503.5.5.2.2 Two-Pipe Changeover System. E 503.5.5.2.3 Hydronic (Water Loop) Heat Pump Systems. E 503.5.5.3 Dehumidification.
339	E 503.5.5.4 Humidifier Preheat. E 503.5.5.4.1 Insulation. E 503.5.5.5 Preheat Coils. E 503.5.6 Air System Design and Control. E 503.5.6.1 Fan System Power and Efficiency. E 503.5.6.1.1 Motor Nameplate Horsepower. TABLE E 503.5.6.1(1) FAN POWER LIMITATION
340	E 503.5.6.1.2 Fan Efficiency. E 503.5.6.2 Fan Airflow Control. TABLE E 503.5.6.1(2) FAN POWER LIMITATION PRESSURE DROP ADJUSTMENT
341	E 503.5.6.2.1 VAV Static Pressure Sensor Location. E 503.5.6.2.2 VAV Setpoint Reset. E 503.5.6.3 Multiple-Zone VAV System Ventilation Optimization Control. E 503.5.6.4 Supply Air Temperature Reset Controls. TABLE E 503.5.6.2 FAN AIRFLOW CONTROL
342	E 503.5.6.5 Fractional Horsepower Fan Motors. E 503.5.6.6 Ventilation Design. TABLE E 503.5.6.5(1) MINIMUM AVERAGE FULL-LOAD EFFICIENCY FOR POLYPHASE SMALL ELECTRIC MOTORS TABLE E 503.5.6.5(2) MINIMUM AVERAGE FULL-LOAD EFFICIENCY FOR CAPACITOR-START CAPACITOR-RUN AND CAPACITOR-START INDUCTION-RUN SMALL ELECTRIC MOTORS
343	E 503.5.7 Hydronic System Design and Control. E 503.5.7.1 Hydronic Variable Flow Systems. E 503.5.7.2 Chiller and Boiler Isolation. E 503.5.7.2.1 Boiler Isolation. E 503.5.7.3 Chilled- and Hot-Water Temperature Reset Controls. TABLE E 503.5.7 BOILER TURNDOWN TABLE E 503.5.7.1 PUMP FLOW CONTROL REQUIREMENTS
344	E 503.5.7.4 Hydronic (Water Loop) Heat Pump and Water-Cooled Unitary Air Conditioners. E 503.5.7.4.1 Controls. E 503.5.7.5 Pipe Sizing. E 503.5.8 Heat Rejection Equipment. E 503.5.8.1 Fan Speed Control. TABLE E 503.5.7.5 PIPING SYSTEM DESIGN MAXIMUM FLOW RATE
345	E 503.5.8.2 Variable-Speed Fan Drives. E 503.5.9 Limitation on Centrifugal Fan Open-Circuit Cooling Towers. E 503.5.9.1 Tower Flow Turndown. E 503.5.10 Exhaust Air Energy Recovery. E 503.5.10.1 Heat Recovery for Service Water Heating. E 503.5.10.1.1 Condenser Heat Recovery Systems. E 503.5.10.1.2 Capacity.
346	E 503.5.11 Exhaust Systems. E 503.5.11.1 Kitchen Exhaust Systems. E 503.5.11.1.1 Conditioned Supply Air. E 503.5.11.2 Exhaust Flow Rate. TABLE E 503.5.10(1) EXHAUST AIR ENERGY RECOVERY REQUIREMENTS FOR VENTILATION SYSTEMS OPERATING LESS THAN 8000 HOURS PER YEAR TABLE E 503.5.10(2) EXHAUST AIR ENERGY RECOVERY REQUIREMENTS FOR VENTILATION SYSTEMS OPERATING NOT LESS THAN 8000 HOURS PER YEAR
347	E 503.5.11.2.1 Kitchen or Dining Facility. E 503.5.11.2.2 Performance Testing. E 503.5.11.3 Laboratory Exhaust Systems. TABLE E 503.5.11.2 MAXIMUM NET EXHAUST FLOW RATE, CFM PER LINEAR FOOT OF HOOD LENGTH
348	E 503.5.12 Radiant Heating Systems. E 503.5.12.1 Heating Enclosed Spaces. E 503.5.13 Hot Gas Bypass Limitation. E 503.5.14 Door Switches. E 503.6 Submittals. E 503.6.1 Construction Details. E 503.6.2 Supplemental Information. E 503.6.3 Manuals. E 503.6.3.1 Required Information. E 503.6.3.2 Lighting Manuals. TABLE E 503.5.13 HOT GAS BYPASS LIMITATION
349	E 503.6.4 Labeling of Material and Equipment. E 503.6.5 Completion Requirements. E 503.6.5.1 Drawings. E 503.6.5.2 Manuals. E 503.6.5.3 System Balancing. E 503.6.5.3.1 Air System Balancing. E 503.6.5.3.2 Hydronic System Balancing. E 503.6.5.4 System Commissioning. E 503.6.5.4.1 Minimum Level of Commission. E 503.7 Minimum Equipment Efficiency Tables.
350	E 503.7.1 Minimum Efficiency Requirement Listed Equipment – Standard Rating and Operating Conditions. E 503.7.2 Duct Insulation Tables. E 503.7.3 Pipe Insulation Tables. E 503.8 Alternative Compliance Path. E 503.8.1 Computer Room (PUE1). E 503.8.2 Computer Room (PUE0). E 503.8.3 Documentation. E 504.0 Solar Energy Systems. E 504.1 General. TABLE E 503.8.1 POWER USAGE EFFECTIVENESS (PUE) MAXIMUM
351	TABLE E 503.7.1(1) ELECTRICALLY OPERATED UNITARY AIR CONDITIONERS AND CONDENSING UNITS MINIMUM EFFICIENCY REQUIREMENTS
353	TABLE E 503.7.1(2) ELECTRICALLY OPERATED UNITARY AND APPLIED HEAT PUMPS MINIMUM EFFICIENCY REQUIREMENTS
355	TABLE E 503.7.1(3) WATER-CHILLING PACKAGES ─ MINIMUM EFFICIENCY REQUIREMENTS1
356	TABLE E 503.7.1(4) ELECTRICALLY OPERATED PACKAGED TERMINAL AIR CONDITIONERS, PACKAGED TERMINAL HEAT PUMPS, SINGLE-PACKAGE VERTICAL AIR CONDITIONERS, SINGLE-PACKAGE VERTICAL HEAT PUMPS, ROOM AIR CONDITIONERS,AND ROOM AIR CONDITIONER HEAT PUMPS ─ MINIMUM EFFICIENCY REQUIREMENTS
357	TABLE E 503.7.1(5) WARM-AIR FURNACES AND COMBINATION WARM-AIR FURNACES/AIR-CONDITIONING UNITS, WARM-AIR DUCT FURNACES, AND UNIT HEATERS ─ MINIMUM EFFICIENCY REQUIREMENTS
358	TABLE E 503.7.1(6) GAS- AND OIL-FIRED BOILERS ─ MINIMUM EFFICIENCY REQUIREMENTS
359	TABLE E 503.7.1(7) PERFORMANCE REQUIREMENTS FOR HEAT REJECTION EQUIPMENTMINIMUM EFFICIENCY REQUIREMENTS
360	TABLE E 503.7.1(8) HEAT TRANSFER EQUIPMENT ─ MINIMUM EFFICIENCY REQUIREMENTS TABLE E 503.7.1(9) ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AIR CONDITIONERS ─ MINIMUM EFFICIENCY REQUIREMENTS
361	TABLE E 503.7.1(10) ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AND APPLIED HEAT PUMPS ─ MINIMUM EFFICIENCY REQUIREMENTS
363	TABLE E 503.7.1(11) AIR CONDITIONERS AND CONDENSING UNITS SERVING COMPUTER ROOMS MINIMUM EFFICIENCY REQUIREMENTS
364	TABLE E 503.7.1(12) COMMERCIAL REFRIGERATOR AND FREEZERS ─ MINIMUM EFFICIENCY REQUIREMENTS
365	TABLE E 503.7.1(13) COMMERCIAL REFRIGERATION ─ MINIMUM EFFICIENCY REQUIREMENTS
366	TABLE E 503.7.1(14) VAPOR COMPRESSION BASED INDOOR POOL DEHUMIDIFIERS ─ MINIMUM EFFICIENCY REQUIREMENTS TABLE E 503.7.1(15) ELECTRICALLY OPERATED DX-DOAS UNITS, SINGLE-PACKAGE AND REMOTE CONDENSER, WITHOUT ENERGY RECOVERY ─ MINIMUM EFFICIENCY REQUIREMENTS TABLE E 503.7.1(16) ELECTRICALLY OPERATED DX-DOAS UNITS, SINGLE PACKAGE AND REMOTE CONDENSER, WITH ENERGY RECOVERY ─ MINIMUM EFFICIENCY REQUIREMENTS
367	TABLE E 503.7.2 MINIMUM DUCT INSULATION R-VALUE TABLE E 503.7.3(1) MINIMUM PIPE INSULATION THICKNESS FOR HEATING AND HOT WATER SYSTEMS
368	E 505.0 Geothermal Systems. E 505.1 Applicability. E 505.1.1 Design, Installation, and Testing. E 505.1.2 Heat Pump Approval. E 505.2 Ground Source Heat Pump-Loop Systems. E 505.3 Material Rating. E 505.4 Used Materials. E 505.5 Piping and Tubing Materials Standards. TABLE E 503.7.3(2) MINIMUM PIPE INSULATION THICKNESS FOR COOLING SYSTEMS (CHILLED WATER, BRINE, AND REFRIGERANT) TABLE E 505.5 PLASTIC GROUND SOURCE LOOPPIPING
369	E 505.6 Fittings. E 506.0 Joints and Connections. E 506.1 Approval. E 506.2 Joints Between Various Materials. E 506.3 Preparation of Pipe Ends. E 506.4 Joint Preparation and Installation. E 506.5 Mechanical Joints. E 506.6 Thermoplastic Welded Joints. E 506.7 CPVC Plastic Pipe. E 506.7.1 Threaded Joints. E 506.7.2 Solvent Cement. E 506.8 Cross-Linked Polyethylene (PEX) Plastic Tubing. E 506.8.1 Compression-Type Fittings. E 506.8.2 Plastic-to-Metal Connections. E 506.9 Polyethylene Plastic Pipe and Tubing. E 506.9.1 Heat-Fusion Joints. E 506.9.2 Electrofusion Joints. E 506.9.3 Stab-Type Insert Fittings. TABLE E 505.6 GROUND SOURCE LOOP PIPE FITTINGS
370	E 506.10 Polypropylene (PP) Plastic. E 506.10.1 Heat-Fusion Joints. E 506.10.2 Mechanical and Compression Sleeve Joints. E 506.11 Raised Temperature Polyethylene (PE-RT) Plastic Tubing. E 506.11.1 Compression-Type Fittings. E 506.11.2 PE-RT-to-Metal Connections. E 506.12 PVC Plastic Pipe. E 506.12.1 Solvent Cement Joints. E 506.12.2 Threaded Joints. E 507.0 Valves. E 507.1 Where Required. E 507.2 Heat Exchangers. E 507.3 Central Systems. E 507.4 Pressure Vessels. E 507.5 Pressure-Reducing Valves. E 507.6 Equipment and Appliances. E 507.7 Expansion Tanks. E 507.8 Reduced Pressure. E 508.0 Installation. E 508.1 General. E 508.2 Protection of Potable Water. E 508.3 Pipe Penetrations. E 508.4 Clearance from Combustibles. E 508.5 Contact with Building Material. E 508.6 Strains and Stresses. E 508.7 Flood Hazard. E 508.8 Pipe Support.
371	E 508.9 Velocities. E 508.10 Labeling and Marking. E 508.11 Chemical Compatibility. E 508.12 Transfer Fluid. E 509.0 Testing. E 509.1 Ground Source Heat Pump Loop System Testing. E 509.2 Pressurizing During Installation. E 601.0 Indoor Environment. E 601.1 Scope. E 602.0 Fireplaces. E 602.1 Requirements. A direct-vent sealed-combustion E 602.1.1 Masonry or Factory-Built Fireplace. E 602.1.1.1 Opening Cover. Closeable metal or E 602.1.1.2 Combustion Air Intake. A combustion E 602.1.1.3 Accessible Damper Control. The E 602.1.2 Prohibited. Continuous burning pilot lights E 603.0 Pollutant Control. E 603.1 Indoor Air Quality During Construction. E 603.1.1 Temporary Ventilation During Construction. E 603.1.2 Indoor Air Quality After Construction.
372	E 603.1.3 Covering of Duct Openings and Protection of Mechanical Equipment During Construction. E 603.2 Isolation of Pollutant Sources. E 603.3 Filters. E 603.4 Ozone Depletion and Global Warming Reductions. E 604.0 Indoor Moisture Control. E 604.1 Rainwater Control. E 605.0 Indoor Air Quality for Low-Rise Residential. E 605.1 General. E 605.1.1 Natural Ventilation. E 605.1.1.1 Access to Operable Openings. E 605.1.2 Mechanical Ventilation. E 605.1.3 Dwelling-Unit Ventilation. E 605.1.3.1 Total Ventilation Rate. TABLE E 605.1.3.1 VENTILATION AIR REQUIREMENTS, (cubic foot per minute)
373	E 605.1.3.2 Effective Annual Average Infiltration Rate (Qinf). E 605.1.3.3 Required Mechanical Ventilation Rate (Qfan). E 605.1.3.4 Different Occupant Density. E 605.1.4 System Type. E 605.1.5 Airflow Measurement. E 605.1.6 Control and Operation. E 605.1.7 Variable Mechanical Ventilation.
374	E 605.1.7.1 Short-Term Average Ventilation. E 605.1.7.2 Scheduled Ventilation. E 605.1.7.2.1 Annual Average Schedule. E 605.1.7.2.2 Block Scheduling. E 605.1.7.3 Real-Time Control. E 605.1.8 Equivalent Ventilation. E 605.2 Bathroom Exhaust Fans. E 605.3 Filters. E 606.0 Indoor Air Quality for Other than Low-Rise Residential Buildings. E 606.1 Minimum Indoor Air Quality. E 607.0 Environmental Comfort. E 607.1 Thermal Comfort Controls. E 607.2 Heating and Air-Conditioning System Design. E 608.0 Low VOC Solvent Cement and Primer. E 608.1 General. E 608.1.1 Solvent Cement. E 608.1.2 Primer. E 701.0 Installer Qualifications. E 701.1 Scope.
375	E 702.0 Qualifications. E 702.1 General. Part I E 801.0 Heating, Ventilation, and Air Conditioning Systems Commissioning. E 801.1 Applicability. E 802.0 Commissioning. E 802.1 Commissioning Requirements. E 802.2 Owner’s Project Requirements (OPR). E 802.3 Basis of Design (BOD). E 802.4 Commissioning Plan. E 802.5 Functional Performance Testing. E 802.6 Post Construction Documentation and Training. E 802.6.1 Systems Manual.
376	E 802.6.2 Systems Operations Training. E 802.7 Commissioning Report. Part II E 803.0 Commissioning Acceptance. E 803.1 General. E 803.2 Construction Documents. E 803.2.1 Roles and Responsibilities. E 803.2.1.1 Field Technician. E 803.2.1.2 Responsible Person. The responsible E 803.2.1.3 Certificate of Acceptance. The certificate E 804.0 Commissioning Tests. E 804.1 General. E 804.2 Tests.
377	E 804.3 Acceptance Process. E 804.3.1 Plan Review. E 804.3.2 Construction Inspection. E 804.3.3 Acceptance Testing. E 804.3.4 Certificate of Occupancy. E 805.0 HVAC System Tests. E 805.1 Variable Air Volume Systems (Form MECH-2A). E 805.1.1 Test Procedure. E 805.1.1.1 Construction Inspection. E 805.1.1.2 Functional Testing.
378	E 805.1.2 Acceptance Criteria. E 805.2 Constant Volume Systems (Form MECH-2A). E 805.2.1 Test Procedure. E 805.2.1.1 Construction Inspection. E 805.2.1.2 Functional Testing. E 805.2.2 Acceptance Criteria. The system has a E 805.3 Constant Volume, Single-Zone, Unitary Air Conditioner and Heat Pumps Systems Acceptance (Form MECH-3A). E 805.3.1 Test Procedure. E 805.3.1.1 Construction Inspection. E 805.3.1.2 Functional Testing.
379	E 805.3.2 Acceptance Criteria. E 805.4 Air Distribution Systems (Form MECH-4A). E 805.4.1 Test Procedure. E 805.4.1.1 Construction Inspection. E 805.4.1.2 Functional Testing. E 805.4.2 Acceptance Criteria. E 805.5 Air Economizer Controls Acceptance (Form MECH-5A). E 805.5.1 Test Procedure. E 805.5.1.1 Construction Inspection.
380	E 805.5.1.2 Functional Testing. E 805.5.2 Acceptance Criteria. E 805.6 Demand-Controlled Ventilation Systems Acceptance (Form MECH-6A). E 805.6.1 Test Procedure. E 805.6.1.1 Construction Inspection. E 805.6.1.2 Functional Testing.
381	E 805.6.2 Acceptance Criteria. E 805.7 Supply Fan Variable Flow Controls (Form MECH-7A). E 805.7.1 Test Procedure. E 805.7.1.1 Construction Inspection. E 805.7.1.2 Functional Testing. E 805.7.2 Acceptance Criteria.
382	E 805.8 Valve Leakage (Form MECH-8A). E 805.8.1 Test Procedure. E 805.8.1.1 Construction Inspection. E 805.8.1.2 Functional Testing. E 805.8.2 Acceptance Criteria. E 805.9 Supply Water Temperature Reset Controls (Form MECH-9A). E 805.9.1 Test Procedure. E 805.9.1.1 Construction Inspection. E 805.9.1.2 Functional Testing. E 805.9.2 Acceptance Criteria. E 805.10 Hydronic System Variable Flow Controls (Form MECH-10A).
383	E 805.10.1 Test Procedure. E 805.10.1.1 Construction Inspection. E 805.10.1.2 Functional Testing. E 805.10.2 Acceptance Criteria. E 805.11 Automatic Demand Shed Control (Form MECH-11A). E 805.11.1 Test Procedure. E 805.11.1.1 Construction Inspection. E 805.11.1.2 Functional Testing. E 805.11.2 Acceptance Criteria. E 805.12 Fault Detection and Diagnostics (FDD) for Packaged Direct-Expansion (DX) Units (Form MECH-12A). E 805.12.1 Test Procedure. E 805.12.1.1 Construction Inspection.
384	E 805.12.1.2 Functional Testing. E 805.12.2 Acceptance Criteria. E 805.13 Automatic Fault Detection Diagnostics (FDD) for Air Handling Units (AHU) and Zone Terminal Units (Form MECH-13A). E 805.13.1 Test Procedure. E 805.13.1.1 Functional Testing. E 805.13.1.1.1 Functional Testing for Air Handling Units.
385	E 805.13.1.1.2 Functional Testing forZone Terminal Units. E 805.13.2 Acceptance Criteria. E 805.14 Distributed Energy Storage DX AC System (Form MECH-14A). E 805.14.1 Test Procedure.
386	E 805.14.1.1 Construction Inspection. E 805.14.1.2 Functional Testing. E 805.14.1.3 Calibrating Controls. E 805.14.2 Acceptance Criteria. E 805.15 Thermal Energy Storage (TES) System (Form MECH-15A). E 805.15.1 Test Procedure. E 805.15.1.1 Construction Inspection.
387	E 805.15.1.2 Functional Testing. E 805.15.2 Acceptance Criteria. E 806.0 Certificate of Acceptance Forms. E 806.1 General. TABLES
388	FORMS MECH-2A
391	MECH-3A
394	MECH-4A
397	MECH-5A
400	MECH-6A
403	MECH-7A
405	MECH-8A
407	MECH-9A
409	MECH-10A
412	MECH-11A
414	MECH-12A
417	MECH-13A
421	MECH-14A
424	MECH-15A
428	APPENDIX F SIZING OF VENTING SYSTEMS AND OUTDOOR COMBUSTION AND VENTILATION OPENING DESIGN F 101.0 General. F 101.1 Applicability. F 101.2 Examples Using Single Appliance Venting Tables. Figures FIGURE F 101.2(1) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH ATYPE B DOUBLE-WALL VENT FIGURE F 101.2(2) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLEAPPLIANCE WITH A SINGLE-WALLMETAL VENT CONNECTOR FIGURE F 101.2(3) VENT SYSTEM SERVING A SINGLE APPLIANCEWITH A MASONRY CHIMNEY AND ATYPE B DOUBLE-WALL VENT CONNECTOR FIGURE F 101.2(4) VENT SYSTEM SERVING A SINGLE APPLIANCE USINGA MASONRY CHIMNEY AND A SINGLE-WALL METALVENT CONNECTOR
429	FIGURE F 101.2(5) ASBESTOS CEMENT TYPE B OR SINGLE-WALLMETAL VENT SYSTEM SERVING A SINGLE DRAFT HOOD-EQUIPPED APPLIANCE FIGURE F 101.2(6) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT ANDTYPE B DOUBLE-WALL VENT CONNECTORS FIGURE F 101.2(7) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND SINGLE-WALL METAL VENT CONNECTORS FIGURE F 101.2(8) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT CONNECTORS
430	FIGURE F 101.2(9) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH SINGLE-WALL METAL VENT CONNECTORS FIGURE F 101.2(10) ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEMS SERVING TWO OR MORE DRAFT HOOD-EQUIPPED APPLIANCES FIGURE F 101.2(11) USE OF MANIFOLDED COMMON VENT CONNECTORS FIGURE F 101.2(12) USE OF OFFSET COMMON VENT
431	F 101.3 Example 1: Single Draft Hood-Equipped Appliance. FIGURE F 101.2(13) MULTISTORY GAS VENT DESIGN PROCEDURE FOR EACH SEGMENT OF SYSTEM FIGURE F 101.2(14) PRINCIPLES OF DESIGN OF MULTISTORY VENTS USING VENT CONNECTOR AND COMMON VENT DESIGN TABLES
432	F 101.4 Example 2: Single Fan-Assisted Appliance. F 101.5 Example 3: Interpolating Between Table Values. FIGURE F 101.3 SINGLE DRAFT HOOD-EQUIPPED APPLIANCE EXAMPLE 1 FIGURE F 101.4 SINGLE FAN-ASSISTED APPLIANCE EXAMPLE 2
433	F 102.0 Examples Using Common Venting Tables. F 102.1 Example 4: Common Venting Two Draft Hood-Equipped Appliances. F 102.2 Example 5(a): Common Venting a DraftHood-Equipped Water Heater with a Fan-Assisted Furnace into a Type B Vent. FIGURE F 102.1 COMMON VENTING TWO DRAFTHOOD-EQUIPPED APPLIANCES EXAMPLE 4
434	F 102.3 Example 5(b): Common Venting into an Interior Masonry Chimney. F 102.4 Example 5(c): Common Venting into an Exterior Masonry Chimney. FIGURE F 102.2COMMON VENTING A DRAFT HOOD-EQUIPPED WATERHEATER WITH A FAN-ASSISTED FURNACE INTO A TYPE BDOUBLE-WALL COMMON VENT EXAMPLE 5(a)
435	Tables TABLE F 102.3 MASONRY CHIMNEY LINER DIMENSIONS WITH CIRCULAR EQUIVALENTS*
436	F 103.0 Example of Combination Indoor and Outdoor Combustion Air Opening Design.
437	TABLE F 103.0 STANDARD METHOD: REQUIRED VOLUME, ALL APPLIANCES
438	APPENDIX G EXAMPLE CALCULATION OF OUTDOOR AIR RATE G 101.0 Example Calculation of Outdoor Air Rate. G 101.1 Example Calculation.
440	Index

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Publication Date	2018
Pages Count	459

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