OR MechanicalSpecialtyCode 2022 1stptg
$76.92
Oregon Mechanical Specialty Code
| Published By | Publication Date | Number of Pages |
| OR | 2022 |
This is a fully integrated custom code based on the 2021 International Mechanical Code® and 2021 International Fuel Gas Code®. Effective date: October 1, 2022
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| PDF Pages | PDF Title |
|---|---|
| 1 | 2022 OREGON MECHANICAL SPECIALTY CODE |
| 2 | 2022 OREGON MECHANICAL SPECIALTY CODE BASED ON THE 2021 INTERNATIONAL MECHANICAL CODE® AND THE 2021 INTERNATIONAL FUEL GAS CODE® TITLE PAGE |
| 3 | COPYRIGHT |
| 4 | PREFACE |
| 6 | ARRANGEMENT AND FORMAT OF THE 2022 OMSC |
| 12 | TABLE OF CONTENTS |
| 16 | CHAPTER 1 SCOPE AND ADMINISTRATION PART 1—SCOPE AND APPLICATION SECTION 101 SCOPE AND GENERAL REQUIREMENTS SECTION 102 APPLICABILITY |
| 18 | PART 2—ADMINISTRATION AND ENFORCEMENT SECTION 103 CODE COMPLIANCE AGENCY SECTION 104 DUTIES AND POWERS OF THE BUILDING OFFICIAL SECTION 105 APPROVAL |
| 19 | SECTION 106 PERMITS |
| 20 | SECTION 107 CONSTRUCTION DOCUMENTS SECTION 108 NOTICE OF APPROVAL |
| 21 | SECTION 109 FEES |
| 22 | SECTION 110 SERVICE UTILITIES SECTION 111 TEMPORARY EQUIPMENT, SYSTEMS AND USES SECTION 112 INSPECTIONS AND TESTING |
| 23 | SECTION 113 MEANS OF APPEALS |
| 24 | SECTION 114 RESERVED SECTION 115 VIOLATIONS |
| 25 | SECTION 116 STOP WORK ORDER |
| 26 | CHAPTER 2 DEFINITIONS SECTION 201 GENERAL SECTION 202 GENERAL DEFINITIONS |
| 40 | CHAPTER 3 GENERAL REGULATIONS SECTION 301 GENERAL |
| 41 | SECTION 302 PROTECTION OF STRUCTURE |
| 42 | SECTION 303 EQUIPMENT AND APPLIANCE LOCATION SECTION 304 INSTALLATION |
| 44 | FIGURE 304.6 ILLUSTRATIONS OF NORMAL VEHICLE PATH AND RECOMMENDED TYPES OF PROTECTION |
| 45 | SECTION 305 PIPING SUPPORT TABLE 305.4 PIPING SUPPORT SPACINGa SECTION 306 ACCESS AND SERVICE SPACE |
| 47 | SECTION 307 CONDENSATE DISPOSAL TABLE 307.2.2 CONDENSATE DRAIN SIZING |
| 48 | SECTION 308 CLEARANCE REDUCTION |
| 49 | TABLE 308.4.2 CLEARANCE REDUCTION METHODSb SECTION 309 TEMPERATURE CONTROL |
| 50 | SECTION 310 HEATING AND COOLING LOAD CALCULATIONS |
| 52 | CHAPTER 4 VENTILATION SECTION 401 GENERAL TABLE 401.5 OPENING SIZES IN LOUVERS, GRILLES AND SCREENS PROTECTING AIR INTAKE OPENINGS SECTION 402 NATURAL VENTILATION |
| 53 | SECTION 403 MECHANICAL VENTILATION |
| 54 | TABLE 403.3.1.1 MINIMUM VENTILATION RATES |
| 55 | TABLE 403.3.1.1—continued MINIMUM VENTILATION RATES |
| 56 | TABLE 403.3.1.1—continued MINIMUM VENTILATION RATES |
| 57 | EQUATION 4-1 TABLE 403.3.1.1.1.2 ZONE AIR DISTRIBUTION EFFECTIVENESS EQUATION 4-2 EQUATION 4-3 EQUATION 4-4 EQUATION 4-5 |
| 58 | TABLE 403.3.1.1.2.3.2 SYSTEM VENTILATION EFFICIENCY EQUATION 4-6 EQUATION 4-7 EQUATION 4-8 EQUATION 4-9 |
| 59 | TABLE 403.3.2.3 MINIMUM REQUIRED LOCAL EXHAUST RATES FOR GROUP R-2, R-3 AND R-4 OCCUPANCIES SECTION 404 ENCLOSED PARKING GARAGES SECTION 405 SYSTEMS CONTROL SECTION 406 VENTILATION OF UNINHABITED SPACES SECTION 407 AMBULATORY CARE FACILITIES AND GROUP I-2 OCCUPANCIES |
| 60 | CHAPTER 5 EXHAUST SYSTEMS SECTION 501 GENERAL |
| 61 | SECTION 502 REQUIRED SYSTEMS EQUATION 5-1 |
| 67 | SECTION 503 MOTORS AND FANS |
| 68 | SECTION 504 CLOTHES DRYER EXHAUST |
| 69 | TABLE 504.9.4.1 DRYER EXHAUST DUCT FITTING EQUIVALENT LENGTH SECTION 505 DOMESTIC COOKING EXHAUST EQUIPMENT |
| 70 | SECTION 506 COMMERCIAL KITCHEN HOOD VENTILATION SYSTEM DUCTS AND EXHAUST EQUIPMENT |
| 75 | SECTION 507 COMMERCIAL KITCHEN HOODS |
| 77 | TABLE 507.2.8 MINIMUM DISTANCE BETWEEN THE LOWEST EDGE OF A GREASE FILTER AND THE COOKING SURFACE OR THE HEATING SURFACE |
| 79 | SECTION 508 COMMERCIAL KITCHEN MAKEUP AIR SECTION 509 FIRE SUPPRESSION SYSTEMS SECTION 510 HAZARDOUS EXHAUST SYSTEMS |
| 81 | TABLE 510.8 MINIMUM DUCT THICKNESS TABLE 510.8.2 CLEARANCE TO COMBUSTIBLES |
| 82 | SECTION 511 DUST, STOCK AND REFUSE CONVEYING SYSTEMS TABLE 511.2 CONSTRUCTION, CLEARANCE AND TERMINATION REQUIREMENTS FOR SINGLE-WALL METAL CHIMNEYS |
| 83 | SECTION 512 SUBSLAB SOIL EXHAUST SYSTEMS SECTION 513 SMOKE CONTROL SYSTEMS |
| 84 | EQUATION 5-2 |
| 85 | EQUATION 5-3 |
| 87 | SECTION 514 ENERGY RECOVERY VENTILATION SYSTEMS |
| 88 | CHAPTER 6 DUCT SYSTEMS SECTION 601 GENERAL |
| 89 | SECTION 602 PLENUMS |
| 91 | SECTION 603 DUCT CONSTRUCTION AND INSTALLATION TABLE 603.4 DUCT CONSTRUCTION MINIMUM SHEET METAL THICKNESS FOR SINGLE DWELLING UNITS |
| 93 | SECTION 604 INSULATION |
| 94 | SECTION 605 AIR FILTERS SECTION 606 SMOKE DETECTION SYSTEMS CONTROL |
| 95 | SECTION 607 DUCT AND TRANSFER OPENINGS TABLE 607.3.2.1 FIRE DAMPER RATING |
| 100 | SECTION 608 BALANCING |
| 102 | CHAPTER 7 COMBUSTION AIR SECTION 701 GENERAL |
| 104 | CHAPTER 8 CHIMNEYS AND VENTS SECTION 801 GENERAL |
| 105 | SECTION 802 VENTS TABLE 802.2 VENT APPLICATION |
| 106 | SECTION 803 CONNECTORS TABLE 803.9(1) MINIMUM CHIMNEY CONNECTOR THICKNESS FOR LOW-HEAT APPLIANCES TABLE 803.9(2) MINIMUM CHIMNEY CONNECTOR THICKNESS FOR MEDIUM- AND HIGH-HEAT APPLIANCES |
| 107 | TABLE 803.10.4 CHIMNEY CONNECTOR SYSTEMS AND CLEARANCES TO COMBUSTIBLE WALL MATERIALS FOR DOMESTIC HEATING APPLIANCES SECTION 804 DIRECT-VENT, INTEGRAL VENT AND MECHANICAL DRAFT SYSTEMS |
| 108 | TABLE 803.10.6 CONNECTOR CLEARANCES TO COMBUSTIBLES SECTION 805 FACTORY-BUILT CHIMNEYS |
| 109 | SECTION 806 METAL CHIMNEYS |
| 110 | CHAPTER 9 SPECIFIC APPLIANCES, FIREPLACES AND SOLID FUEL-BURNING EQUIPMENT SECTION 901 GENERAL SECTION 902 MASONRY FIREPLACES SECTION 903 FACTORY-BUILT FIREPLACES SECTION 904 PELLET FUEL-BURNING APPLIANCES SECTION 905 FIREPLACE STOVES AND ROOM HEATERS SECTION 906 FACTORY-BUILT BARBECUE APPLIANCES SECTION 907 INCINERATORS AND CREMATORIES SECTION 908 COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS |
| 111 | SECTION 909 VENTED WALL FURNACES SECTION 910 FLOOR FURNACES |
| 112 | SECTION 911 DUCT FURNACES SECTION 912 INFRARED RADIANT HEATERS SECTION 913 CLOTHES DRYERS SECTION 914 SAUNA HEATERS SECTION 915 ENGINE AND GAS TURBINE-POWERED EQUIPMENT AND APPLIANCES SECTION 916 POOL AND SPA HEATERS |
| 113 | SECTION 917 COOKING APPLIANCES SECTION 918 FORCED-AIR WARM-AIR FURNACES SECTION 919 CONVERSION BURNERS SECTION 920 UNIT HEATERS SECTION 921 VENTED ROOM HEATERS SECTION 922 KEROSENE AND OIL-FIRED STOVES SECTION 923 SMALL CERAMIC KILNS |
| 114 | SECTION 924 STATIONARY FUEL CELL POWER SYSTEMS SECTION 925 MASONRY HEATERS SECTION 926 GASEOUS HYDROGEN SYSTEMS SECTION 927 RESERVED SECTION 928 EVAPORATIVE COOLING EQUIPMENT SECTION 929 SOLID FUEL-BURNING DEVICES |
| 115 | SECTION 930 UNVENTED ALCOHOL FUEL-BURNING DECORATIVE APPLIANCES SECTION 931 LARGE-DIAMETER CEILING FANS |
| 116 | CHAPTER 10 BOILERS, WATER HEATERS AND PRESSURE VESSELS SECTION 1001 GENERAL SECTION 1002 WATER HEATERS SECTION 1003 BOILERS AND PRESSURE VESSELS SECTION 1004 PERMITS REQUIRED SECTION 1005 DETAILED REQUIREMENTS |
| 117 | SECTION 1006 EXPANSION TANKS SECTION 1007 SAFETY OR RELIEF VALVE DISCHARGE SECTION 1008 GAS PRESSURE REGULATORS SECTION 1009 CLEARANCE FOR ACCESS SECTION 1010 BOILER ROOM ENCLOSURES SECTION 1011 FLOORS SECTION 1012 CHIMNEYS OR VENTS SECTION 1013 DRAINAGE SECTION 1014 FUEL SUPPLY PIPING SECTION 1015 AIR FOR COMBUSTION AND VENTILATION SECTION 1016 STEAM AND HOT WATER PIPING |
| 118 | CHAPTER 11 REFRIGERATION SECTION 1101 GENERAL TABLE 1101.2 FACTORY-BUILT EQUIPMENT AND APPLIANCES SECTION 1102 SYSTEM REQUIREMENTS |
| 119 | SECTION 1103 REFRIGERATION SYSTEM CLASSIFICATION |
| 120 | TABLE 1103.1 REFRIGERANT CLASSIFICATION, AMOUNT AND OEL |
| 121 | TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL |
| 122 | TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL |
| 123 | TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL |
| 124 | TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL |
| 125 | TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL |
| 126 | SECTION 1104 SYSTEM APPLICATION REQUIREMENTS |
| 127 | TABLE 1104.3.2 MAXIMUM PERMISSIBLE QUANTITIES OF REFRIGERANTS SECTION 1105 MACHINERY ROOM, GENERAL REQUIREMENTS |
| 128 | EQUATION 11-1 EQUATION 11-2 |
| 130 | SECTION 1106 MACHINERY ROOM, SPECIAL REQUIREMENTS TABLE 1106.4.2 MINIMUM EXHAUST RATES SECTION 1107 PIPING MATERIAL |
| 131 | TABLE 1107.4 REFRIGERANT PIPE TABLE 1107.5 REFRIGERANT PIPE FITTINGS TABLE 1107.5.1 COPPER BRAZED SWAGED CUP DEPTHS SECTION 1108 JOINTS AND CONNECTIONS |
| 132 | SECTION 1109 REFRIGERANT PIPE INSTALLATION |
| 133 | TABLE 1109.3.2 SHAFT VENTILATION VELOCITY |
| 134 | SECTION 1110 REFRIGERATION PIPING SYSTEM TEST |
| 136 | CHAPTER 12 HYDRONIC PIPING SECTION 1201 GENERAL SECTION 1202 MATERIAL TABLE 1202.4 HYDRONIC PIPE SECTION 1203 JOINTS AND CONNECTIONS |
| 137 | TABLE 1202.5 HYDRONIC PIPE FITTINGS |
| 139 | SECTION 1204 PIPE INSULATION SECTION 1205 VALVES SECTION 1206 PIPING INSTALLATION |
| 140 | SECTION 1207 TRANSFER FLUID SECTION 1208 TESTS SECTION 1209 EMBEDDED PIPING SECTION 1210 PLASTIC PIPE GROUND-SOURCE HEAT PUMP LOOP SYSTEMS |
| 141 | TABLE 1210.4 GROUND-SOURCE LOOP PIPE TABLE 1210.5 GROUND-SOURCE LOOP PIPE FITTINGS |
| 144 | CHAPTER 13 FUEL OIL PIPING AND STORAGE SECTION 1301 GENERAL SECTION 1302 MATERIAL TABLE 1302.3 FUEL OIL PIPING AND FITTINGS SECTION 1303 JOINTS AND CONNECTIONS |
| 145 | SECTION 1304 PIPING SUPPORT SECTION 1305 FUEL OIL SYSTEM INSTALLATION |
| 146 | SECTION 1306 OIL GAUGING SECTION 1307 FUEL OIL VALVES SECTION 1308 TESTING |
| 148 | CHAPTER 14 SOLAR THERMAL SYSTEMS SECTION 1401 GENERAL SECTION 1402 DESIGN AND INSTALLATION |
| 150 | SECTION 1403 HEAT TRANSFER FLUIDS SECTION 1404 LABELING |
| 152 | CHAPTER 15 REFERENCED STANDARDS ACCA AHRI AMCA ANSI ASHRAE |
| 153 | ASME |
| 154 | ASSE ASSP ASTM |
| 158 | AWS AWWA CSA |
| 159 | FDA FS ICC IIAR |
| 160 | MSS NAIMA NFPA |
| 161 | NSF SMACNA UL |
| 166 | APPENDIX A CHIMNEY CONNECTOR PASS-THROUGHS SECTION A101 CHIMNEY CONNECTOR SYSTEMS FIGURE A101.1(1) CHIMNEY CONNECTOR SYSTEMS |
| 167 | FIGURE A101.1(2) CHIMNEY CONNECTOR SYSTEMS |
| 168 | APPENDIX B RECOMMENDED PERMIT FEE SCHEDULE SECTION B101 MECHANICAL WORK, OTHER THAN GAS PIPING SYSTEMS SECTION B102 FEE FOR REINSPECTION SECTION B103 TEMPORARY OPERATION INSPECTION FEE SECTION B104 SELF-CONTAINED UNITS LESS THAN 2 TONS |
| 170 | APPENDIX C FUEL GAS SECTION C101 SCOPE AND GENERAL REQUIREMENTS SECTION C102 NOTICE OF APPROVAL |
| 171 | SECTION C103 SERVICE UTILITIES SECTION C104 TEMPORARY EQUIPMENT, SYSTEMS AND USES SECTION C105 INSPECTIONS AND TESTING SECTION C201 FUEL GAS DEFINITIONS |
| 172 | SECTION C202 GENERAL DEFINITIONS |
| 176 | SECTION C301 GENERAL REGULATIONS SECTION C302 STRUCTURAL SAFETY SECTION C303 APPLIANCE LOCATION |
| 177 | SECTION C304 COMBUSTION, VENTILATION AND DILUTION AIR |
| 178 | EQUATION C3-1 EQUATION C3-2 FIGURE C304.5.3 ALL AIR FROM INSIDE THE BUILDING (see Section C304.5.3) FIGURE C304.6.1(1) ALL AIR FROM OUTDOORS—INLET AIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC (see Section C304.6.1) |
| 179 | FIGURE C304.6.1(2) ALL AIR FROM OUTDOORS THROUGH VENTILATED ATTIC (see Section C304.6.1) FIGURE C304.6.1(3) ALL AIR FROM OUTDOORS (see Section C304.6.1) FIGURE C304.6.2 SINGLE COMBUSTION AIR OPENING, ALL AIR FROM THE OUTDOORS (see Section C304.6.2) |
| 180 | SECTION C305 INSTALLATION |
| 181 | SECTION C306 ACCESS AND SERVICE SPACE |
| 182 | SECTION C307 CONDENSATE DISPOSAL |
| 183 | SECTION C308 CLEARANCE REDUCTION TABLE C308.2 REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTIONa through k |
| 184 | FIGURE C308.2(1) EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM APPLIANCE OR VENT CONNECTIONS FIGURE C308.2(2) WALL PROTECTOR CLEARANCE REDUCTION SYSTEM FIGURE C308.2(3) MASONRY CLEARANCE REDUCTION SYSTEM |
| 185 | SECTION C309 ELECTRICAL SECTION C310 ELECTRICAL BONDING SECTION C401 GAS PIPING INSTALLATIONS |
| 186 | SECTION C402 PIPE SIZING EQUATION C4-1 EQUATION C4-2 |
| 187 | TABLE C402.4 Cr AND Y VALUES FOR NATURAL GAS AND UNDILUTED PROPANE AT STANDARD CONDITIONS |
| 188 | TABLE C402.4(1) SCHEDULE 40 METALLIC PIPE |
| 189 | TABLE C402.4(2) SCHEDULE 40 METALLIC PIPE |
| 190 | TABLE C402.4(3) SCHEDULE 40 METALLIC PIPE |
| 191 | TABLE C402.4(4) SCHEDULE 40 METALLIC PIPE |
| 192 | TABLE C402.4(5) SCHEDULE 40 METALLIC PIPE |
| 193 | TABLE C402.4(6) SCHEDULE 40 METALLIC PIPE |
| 194 | TABLE C402.4(7) SCHEDULE 40 METALLIC PIPE |
| 195 | TABLE C402.4(8) SEMIRIGID COPPER TUBING |
| 196 | TABLE C402.4(9) SEMIRIGID COPPER TUBING |
| 197 | TABLE C402.4(10) SEMIRIGID COPPER TUBING |
| 198 | TABLE C402.4(11) SEMIRIGID COPPER TUBING |
| 199 | TABLE C402.4(12) SEMIRIGID COPPER TUBING |
| 200 | TABLE C402.4(13) SEMIRIGID COPPER TUBING |
| 201 | TABLE C402.4(14) SEMIRIGID COPPER TUBING |
| 202 | TABLE C402.4(15) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 203 | TABLE C402.4(16) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 204 | TABLE C402.4(17) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 205 | TABLE C402.4(18) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 206 | TABLE C402.4(19) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 207 | TABLE C402.4(20) POLYETHYLENE PLASTIC PIPE |
| 208 | TABLE C402.4(21) POLYETHYLENE PLASTIC PIPE |
| 209 | TABLE C402.4(22) POLYETHYLENE PLASTIC PIPE |
| 210 | TABLE C402.4(23) POLYETHYLENE PLASTIC TUBING TABLE C402.4(24) POLYETHYLENE PLASTIC TUBING |
| 211 | TABLE C402.4(25) SCHEDULE 40 METALLIC PIPE |
| 212 | TABLE C402.4(26) SCHEDULE 40 METALLIC PIPE |
| 213 | TABLE C402.4(27) SCHEDULE 40 METALLIC PIPE |
| 214 | TABLE C402.4(28) SCHEDULE 40 METALLIC PIPE |
| 215 | TABLE C402.4(29) SEMIRIGID COPPER TUBING |
| 216 | TABLE C402.4(30) SEMIRIGID COPPER TUBING |
| 217 | TABLE C402.4(31) SEMIRIGID COPPER TUBING |
| 218 | TABLE C402.4(32) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 219 | TABLE C402.4(33) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 220 | TABLE C402.4(34) CORRUGATED STAINLESS STEEL TUBING (CSST) |
| 221 | TABLE C402.4(35) POLYETHYLENE PLASTIC PIPE |
| 222 | TABLE C402.4(36) POLYETHYLENE PLASTIC PIPE |
| 223 | TABLE C402.4(37) POLYETHYLENE PLASTIC TUBING |
| 224 | SECTION C403 PIPING MATERIALS |
| 225 | TABLE C403.8.2 SPECIFICATIONS FOR THREADING METALLIC PIPE |
| 226 | SECTION C404 PIPING SYSTEM INSTALLATION |
| 228 | SECTION C405 PIPING BENDS AND CHANGES IN DIRECTION |
| 229 | SECTION C406 INSPECTION, TESTING AND PURGING |
| 230 | SECTION C407 PIPING SUPPORT SECTION C408 DRIPS AND SLOPED PIPING FIGURE C408.4 METHOD OF INSTALLING A TEE FITTING SEDIMENT TRAP SECTION C409 SHUTOFF VALVES |
| 231 | TABLE C409.1.1 MANUAL GAS VALVE STANDARDS SECTION C410 FLOW CONTROLS |
| 232 | SECTION C411 APPLIANCE AND MANUFACTURED HOME CONNECTIONS |
| 233 | SECTION C412 LIQUEFIED PETROLEUM GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES SECTION C413 COMPRESSED NATURAL GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES SECTION C414 SUPPLEMENTAL AND STANDBY GAS SUPPLY |
| 234 | SECTION C415 PIPING SUPPORT INTERVALS TABLE C415.1 SUPPORT OF PIPING SECTION C416 FUEL GAS EQUIPMENT AND INSTALLATIONS IN MANUFACTURED STRUCTURE (MOBILE HOME OR RECREATIONAL VEHICLE) PARKS TABLE C416.1 MINIMUM DEMAND FACTORS FOR CACULATING GAS PIPING SYSTEMS IN MANUFACTURED STRUCTURE PARKS SECTION C417 OVERPRESSURE PROTECTION DEVICES |
| 235 | SECTION C501 CHIMNEYS AND VENTS |
| 237 | SECTION C502 VENTS SECTION C503 VENTING OF APPLIANCES |
| 238 | TABLE C503.4 TYPE OF VENTING SYSTEM TO BE USED |
| 241 | FIGURE C503.6.5 TERMINATION LOCATIONS FOR GAS VENTS WITH LISTED CAPS 12 INCHES OR LESS IN SIZE NOT LESS THAN 8 FEET FROM A VERTICAL WALL |
| 243 | TABLE C503.8 THROUGH-THE-WALL VENT TERMINAL CLEARANCE |
| 244 | FIGURE C503.8 THROUGH-THE-WALL VENT TERMINAL CLEARANCE |
| 245 | TABLE C503.10.2.4 MINIMUM THICKNESS FOR GALVANIZED STEEL VENT CONNECTORS FOR LOW-HEAT APPLIANCES TABLE C503.10.2.5 MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR MEDIUM-HEAT APPLIANCES |
| 246 | TABLE C503.10.5 CLEARANCES FOR CONNECTORSa |
| 247 | SECTION C504 SIZING OF CATEGORY I APPLIANCE VENTING SYSTEMS |
| 249 | TABLE C504.3.2 MAXIMUM VENT CONNECTOR LENGTH |
| 252 | SECTION C505 DIRECT-VENT, INTEGRAL VENT, MECHANICAL VENT AND VENTILATION/EXHAUST HOOD VENTING SECTION C506 FACTORY-BUILT CHIMNEYS |
| 253 | TABLE C504.2(1) TYPE B DOUBLE-WALL GAS VENT |
| 254 | TABLE C504.2(1)—continued TYPE B DOUBLE-WALL GAS VENT |
| 255 | TABLE C504.2(1)—continued TYPE B DOUBLE-WALL GAS VENT |
| 256 | TABLE C504.2(1)—continued TYPE B DOUBLE-WALL GAS VENT |
| 257 | TABLE C504.2(2) TYPE B DOUBLE-WALL GAS VENT |
| 258 | TABLE C504.2(2)—continued TYPE B DOUBLE-WALL GAS VENT |
| 259 | TABLE C504.2(3) MASONRY CHIMNEY |
| 260 | TABLE C504.2(3)—continued MASONRY CHIMNEY |
| 261 | TABLE C504.2(4) MASONRY CHIMNEY |
| 262 | TABLE C504.2(4)—continued MASONRY CHIMNEY |
| 263 | TABLE C504.2(5) SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT |
| 264 | TABLE C504.2(6) EXTERIOR MASONRY CHIMNEY |
| 265 | TABLE C504.3(1) TYPE B DOUBLE-WALL VENT |
| 266 | TABLE C504.3(1)—continued TYPE B DOUBLE-WALL VENT |
| 267 | TABLE C504.3(2) TYPE B DOUBLE-WALL VENT |
| 268 | TABLE C504.3(3) MASONRY CHIMNEY |
| 269 | TABLE C504.3(4) MASONRY CHIMNEY |
| 270 | TABLE C504.3(5) SINGLE-WALL METAL PIPE OR TYPE ASBESTOS CEMENT VENT |
| 271 | TABLE C504.3(6a) EXTERIOR MASONRY CHIMNEY TABLE C504.3(6b) EXTERIOR MASONRY CHIMNEY TABLE C504.3(6b)—continued EXTERIOR MASONRY CHIMNEY |
| 272 | TABLE C504.3(7a) EXTERIOR MASONRY CHIMNEY TABLE C504.3(7b) EXTERIOR MASONRY CHIMNEY TABLE C504.3(7b)—continued EXTERIOR MASONRY CHIMNEY |
| 273 | SECTION C601 SPECIFIC APPLIANCES SECTION C602 DECORATIVE APPLIANCES FOR INSTALLATION IN FIREPLACES SECTION C603 LOG LIGHTERS SECTION C604 VENTED GAS FIREPLACES (DECORATIVE APPLIANCES) SECTION C605 VENTED GAS FIREPLACE HEATERS SECTION C606 INCINERATORS AND CREMATORIES SECTION C607 COMMERCIAL-INDUSTRIAL INCINERATORS SECTION C608 VENTED WALL FURNACES SECTION C609 FLOOR FURNACES |
| 274 | SECTION C610 DUCT FURNACES SECTION C611 NONRECIRCULATING DIRECT-FIRED INDUSTRIAL AIR HEATERS |
| 275 | SECTION C612 RECIRCULATING DIRECT-FIRED INDUSTRIAL AIR HEATERS SECTION C613 CLOTHES DRYERS SECTION C614 CLOTHES DRYER EXHAUST SECTION C615 SAUNA HEATERS SECTION C616 ENGINE AND GAS TURBINE-POWERED EQUIPMENT |
| 276 | SECTION C617 POOL AND SPA HEATERS SECTION C618 FORCED-AIR WARM-AIR FURNACES SECTION C619 CONVERSION BURNERS |
| 277 | SECTION C620 UNIT HEATERS SECTION C621 UNVENTED ROOM HEATERS SECTION C622 VENTED ROOM HEATERS SECTION C623 COOKING APPLIANCES |
| 278 | SECTION C624 WATER HEATERS SECTION C625 REFRIGERATORS SECTION C626 GAS-FIRED TOILETS SECTION C627 AIR-CONDITIONING APPLIANCES |
| 279 | SECTION C628 ILLUMINATING APPLIANCES SECTION C629 SMALL CERAMIC KILNS SECTION C630 INFRARED RADIANT HEATERS |
| 280 | SECTION C631 BOILERS SECTION C632 RESERVED SECTION C633 STATIONARY FUEL-CELL POWER SYSTEMS SECTION C634 GASEOUS HYDROGEN SYSTEMS SECTION C635 OUTDOOR DECORATIVE APPLIANCES SECTION C701 GASEOUS HYDROGEN SYSTEMS, GENERAL SECTION C702 GENERAL DEFINITIONS SECTION C703 GENERAL REQUIREMENTS |
| 281 | SECTION C704 PIPING, USE AND HANDLING |
| 282 | SECTION C705 TESTING OF HYDROGEN PIPING SYSTEMS |
| 283 | SECTION C706 LOCATION OF GASEOUS HYDROGEN SYSTEMS SECTION C707 OPERATION OF GASEOUS HYDROGEN SYSTEMS SECTION C708 DESIGN OF LIQUEFIED HYDROGEN SYSTEMS ASSOCIATED WITH HYDROGEN VAPORIZATION OPERATIONS |
| 284 | SECTION C801 REFERENCED STANDARDS ANSI |
| 285 | ASME |
| 286 | ASTM |
| 287 | CGA CSA DOTn MSS NFPA |
| 288 | UL |
| 290 | APPENDIX C-A SIZING AND CAPACITIES OF GAS PIPING SECTION C-A101 GENERAL PIPING CONSIDERATIONS SECTION C-A102 DESCRIPTION OF TABLES |
| 291 | TABLE C-A102.2 EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES |
| 292 | TABLE C-A102.2—continued EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES |
| 293 | TABLE C-A102.4 MULTIPLIERS TO BE USED WITH TABLES 402.4(1) THROUGH 402.4(22) WHERE THE SPECIFIC GRAVITY OF THE GAS IS OTHER THAN 0.60 SECTION C-A103 USE OF CAPACITY TABLES |
| 295 | TABLE C-A103.4 THOUSANDS OF BTU/H (MBH) OF NATURAL GAS PER 100 FEET OF PIPE AT VARIOUS PRESSURE DROPS AND PIPE DIAMETERS SECTION C-A104 USE OF SIZING EQUATIONS |
| 296 | SECTION C-A105 PIPE AND TUBE DIAMETERS TABLE C-A105.1 SCHEDULE 40 STEEL PIPE STANDARD SIZES TABLE C-A105.2 COPPER TUBE STANDARD SIZES TABLE C-A105.2-continued COPPER TUBE STANDARD SIZES SECTION C-A106 EXAMPLES OF PIPING SYSTEM DESIGN AND SIZING |
| 297 | FIGURE C-A106.1 PIPING PLAN SHOWING A STEEL PIPING SYSTEM |
| 298 | FIGURE C-A106.2 PIPING PLAN SHOWING A CSST SYSTEM FIGURE C-A106.3 PIPING PLAN SHOWING A COPPER TUBING SYSTEM |
| 299 | FIGURE C-A106.4 PIPING PLAN SHOWING A MODIFICATION TO EXISTING PIPING SYSTEM |
| 302 | APPENDIX C-B SIZING OF VENTING SYSTEMS SERVING APPLIANCES EQUIPPED WITH DRAFT HOODS, CATEGORY I APPLIANCES AND APPLIANCES LISTED FOR USE WITH TYPE B VENTS SECTION C-B101 EXAMPLES USING SINGLE-APPLIANCE VENTING TABLES FIGURE C-B101.1 EXAMPLE 1—SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE |
| 303 | FIGURE C-B101.2 EXAMPLE 2—SINGLE FAN-ASSISTED APPLIANCE FIGURE C-B101.4(1) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A TYPE B DOUBLE-WALL VENT |
| 304 | FIGURE C-B101.4(2) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A SINGLE-WALL METAL VENT CONNECTOR FIGURE C-B101.4(3) VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A MASONRY CHIMNEY OF TYPE B DOUBLE-WALL VENT CONNECTOR FIGURE C-B101.4(4) VENT SYSTEM SERVING A SINGLE APPLIANCE USING A MASONRY CHIMNEY AND A SINGLE-WALL METAL VENT CONNECTOR FIGURE C-B101.4(5) ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING A SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE |
| 305 | SECTION C-B102 EXAMPLES USING COMMON VENTING TABLES FIGURE C-B102.1 EXAMPLE 4—COMMON VENTING TWO DRAFT-HOOD-EQUIPPED APPLIANCES |
| 306 | FIGURE C-B102.2 EXAMPLE 5A—COMMON VENTING A DRAFT HOOD WITH A FAN-ASSISTED FURNACE INTO A TYPE B DOUBLE-WALL COMMON VENT |
| 307 | TABLE C-B102.3 MASONRY CHIMNEY LINER DIMENSIONS WITH CIRCULAR EQUIVALENTSa |
| 308 | FIGURE C-B102.5(1) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND TYPE B DOUBLE-WALL VENT CONNECTOR FIGURE C-B102.5(2) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND SINGLE-WALL METAL VENT CONNECTORS FIGURE C-B102.5(3) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT CONNECTOR FIGURE C-B102.5(4) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH SINGLE-WALL METAL VENT CONNECTORS |
| 309 | FIGURE C-B102.5(5) ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING TWO OR MORE DRAFT-HOOD-EQUIPPED APPLIANCES FIGURE C-B102.5(6) USE OF MANIFOLD COMMON VENT CONNECTOR FIGURE C-B102.5(7) USE OF OFFSET COMMON VENT |
| 310 | FIGURE C-B102.5(8) MULTISTORY GAS VENT DESIGN PROCEDURE FOR EACH SEGMENT OF SYSTEM FIGURE C-B102.5(9) MULTISTORY VENT SYSTEMS |
| 311 | FIGURE C-B102.5(10) NATIONAL FUEL GAS CODE 99-PERCENT WINTER DESIGN TEMPERATURES FOR THE CONTIGUOUS UNITED STATES |
| 312 | APPENDIX C-CEXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS SECTION C-C101 GENERAL FIGURE C-C101.1 EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS |
| 314 | APPENDIX C-D RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING APPLIANCE INSTALLATION SECTION C-D101 GENERAL SECTION C-D102 OCCUPANT AND INSPECTOR SAFETY |
| 315 | SECTION C-D103 GAS PIPING AND CONNECTIONS INSPECTIONS SECTION C-D104 INSPECTIONS TO BE PERFORMED WITH THE APPLIANCE NOT OPERATING |
| 316 | SECTION C-D105 INSPECTIONS TO BE PERFORMED WITH THE APPLIANCE OPERATING |
| 317 | SECTION C-D106 APPLIANCE-SPECIFIC INSPECTIONS |
| 318 | TABLE C-D106 CO THRESHOLDS |
| 319 | TABLE C-D106—continued CO THRESHOLDS |
| 320 | INDEX MECHANICAL INDEX |
| 326 | FUEL GAS INDEX |
| 330 | ADDITIONAL CODE RESOURCES FROM ICC |
| 331 | ICC EVALUATION SERVICE |
| 332 | ICC ASSESSMENT CENTER |
| 333 | ICC DIGITAL CODES PREMIUM |
