SMACNA HVACDuctConstructionStandards 2005 03E
$133.79
HVAC Duct Construction Standards – Metal and Flexible, 3rd Edition
| Published By | Publication Date | Number of Pages |
| SMACNA | 2005 | 396 |
The third edition of the HVAC Duct Construction Standards – Metal and Flexible is intended primarily for commercial and institutional duct construction. The standard contains tables and details for constructing ductwork for ½” to 10” wg positive and negative pressures. This edition improves upon the second edition with expanded pressure class tables, separate tables for TDC/TDF construction and expanded tables for round duct construction including 6” wg positive and negative pressure and sizes up to 96”. New in this edition is an engineering and design chapter to provide additional information to design professionals, double-wall construction details, new casing construction details and additional accessory items. The standard is applicable for construction using uncoated steel, galvanized and stainless steels and a limited range of aluminum ducts. This standard has been adopted in the ICC International Mechanical Code. Includes soft metrics.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | FOREWORD |
| 6 | HVAC DUCT CONSTRUCTION TASK FORCE |
| 7 | NOTICE TO USERS OF THIS PUBLICATION |
| 9 | MODEL PROJECT SPECIFICATION |
| 10 | LIST OF MAJOR CHANGES FROM THE SECOND EDITION |
| 13 | TABLE OF CONTENTS |
| 21 | CHAPTER 1 ENGINEERING AND DESIGN 1.1 INTRODUCTION 1.2 INFORMATION REQUIRED FOR DUCT CONSTRUCTION 1.3 MODEL SPECIFICATIONS |
| 31 | 1.4 DUCT SEALING Table 1-1 Standard Duct Sealing Requirements |
| 33 | 1.5 INTRODUCTION TO BASIC CONSTRUCTION |
| 36 | FIGURE 1-1 DUCT PRESSURE CLASSIFICATION |
| 37 | Table 1-2 Pressure Classification for Ductwork |
| 38 | 1.6 DEPENDENT VARIABLES Table 1-3 Static Pressure |
| 39 | FIGURE 1-2 DEPENDENT VARIABLES |
| 40 | FIGURE 1-3 SYMBOLS FOR HVAC SYSTEMS (I-P) |
| 41 | FIGURE 1-3M SYMBOLS FOR HVAC SYSTEMS (SI) |
| 47 | CHAPTER 2 RECTANGULAR DUCT CONSTRUCTION 2.1 INTRODUCTION TO THE RECTANGULAR DUCT CONSTRUCTION SCHEDULES |
| 50 | 2.2 RECTANGULAR DUCT REINFORCEMENT |
| 52 | FIGURE 2-1 RECTANGULAR DUCT/TRANSVERSE JOINTS |
| 53 | FIGURE 2-1 RECTANGULAR DUCT/TRANSVERSE JOINTS (CONTINUED) |
| 54 | FIGURE 2-1 RECTANGULAR DUCT/TRANSVERSE JOINTS (CONTINUED) |
| 55 | FIGURE 2-1 RECTANGULAR DUCT/TRANSVERSE JOINTS (CONTINUED) |
| 56 | FIGURE 2-2 RECTANGULAR DUCT/LONGITUDINAL SEAMS |
| 57 | 2.3 LONGITUDINAL SEAMS FOR RECTANGULAR DUCT |
| 58 | FIGURE 2-3 RECTANGULAR DUCT EXTERNAL REINFORCEMENTS |
| 60 | Table 2-1 Rectangular Duct Reinforcement |
| 61 | Table 2-1M Rectangular Duct Reinforcement |
| 62 | Table 2-2 Rectangular Duct Reinforcement |
| 63 | Table 2-2M Rectangular Duct Reinforcement |
| 64 | Table 2-3 Rectangular Duct Reinforcement |
| 65 | Table 2-3M Rectangular Duct Reinforcement |
| 66 | Table 2-4 Rectangular Duct Reinforcement |
| 67 | Table 2-4M Rectangular Duct Reinforcement |
| 68 | Table 2-5 Rectangular Duct Reinforcement |
| 69 | Table 2-5M Rectangular Duct Reinforcement |
| 70 | Table 2-6 Rectangular Duct Reinforcement |
| 71 | Table 2-6M Rectangular Duct Reinforcement |
| 72 | Table 2-7 Rectangular Duct Reinforcement |
| 73 | Table 2-7M Rectangular Duct Reinforcement |
| 74 | Table 2-8 4 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 75 | Table 2-8M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 76 | Table 2-9 4 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 77 | Table 2-9M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 78 | Table 2-10 4 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 79 | Table 2-10M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 80 | Table 2-11 4 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 81 | Table 2-11M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 82 | Table 2-12 4 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 83 | Table 2-12M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 84 | Table 2-13 4 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 85 | Table 2-13M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 86 | Table 2-14 4 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 87 | Table 2-14M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 88 | Table 2-15 5 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 89 | Table 2-15M 1.50 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 90 | Table 2-16 5 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 91 | Table 2-16M 1.50 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 92 | Table 2-17 5 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 93 | Table 2-17M 1.50 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 94 | Table 2-18 5 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 95 | Table 2-18M 1.50 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 96 | Table 2-19 5 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 97 | Table 2-19M 1.50 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 98 | Table 2-20 5 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 99 | Table 2-20M 1.20 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 100 | Table 2-21 5 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 101 | Table 2-21M 1.50 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 102 | Table 2-22 6 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 103 | Table 2-22M 1.80 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 104 | Table 2-23 6 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 105 | Table 2-23M 1.80 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 106 | Table 2-24 6 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 107 | Table 2-24M 1.80 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 108 | Table 2-25 6 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 109 | Table 2-25M 1.80 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 110 | Table 2-26 6 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 111 | Table 2-26M 1.80 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 112 | Table 2-27 6 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 113 | Table 2-27M 1.80 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 114 | Table 2-28 6 ft Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 115 | Table 2-28M 1.80 m Coil/Sheet Stock/T25a/T25b (TDC/TDF) Duct Reinforcement |
| 116 | Table 2-29 Intermediate Reinforcement |
| 117 | Table 2-29M Intermediate Reinforcement |
| 118 | Table 2-30 Framing Channel Table 2-30M Framing Channel FIGURE 2-4 CHANNEL (STRUT) USED AS DUCT REINFORCEMENT |
| 119 | 2.4 TRANSVERSE JOINTS FOR RECTANGULAR DUCT |
| 120 | Table 2-31 Transverse Joint Reinforcement |
| 121 | Table 2-31M Transverse Joint Reinforcement |
| 122 | Table 2-32 Transverse Joint Reinforcement |
| 123 | Table 2-32M Transverse Joint Reinforcement |
| 124 | Table 2-33 Transverse Joint Reinforcement |
| 125 | Table 2-33M Transverse Joint Reinforcement |
| 126 | 2.5 TIE ROD INSTALLATIONS |
| 127 | 2.6 COMMENTARY |
| 128 | FIGURE 2-5 TIE ROD ATTACHMENTS |
| 129 | FIGURE 2-6 TIE ROD ATTACHMENTS |
| 130 | Table 2-34 Internal Tie Rod Design Load in Pounds |
| 131 | Table 2-34M Internal Tie Rod Design Load in Kilograms |
| 132 | Table 2-35 Internal Tie Rod Size (+) Pressure |
| 133 | Table 2-35M Internal Tie Rod Size (+) Pressure |
| 134 | Table 2-36 Internal Tie Rod Size (-) Pressure Table 2-36M Internal Tie Rod Size (-) Pressure |
| 135 | Table 2-37 Internal RC Conduit Size (-) Pressure |
| 136 | Table 2-37M Internal RC Conduit Size (-) Pressure |
| 137 | Table 2-38 Internal EMT Conduit Size (-) Pressure |
| 138 | Table 2-38M Internal EMT Conduit Size (-) Pressure |
| 139 | Table 2-39 Steel Pipe Size (-) Pressure |
| 140 | Table 2-39M Steel Pipe Size (-) Pressure |
| 141 | Table 2-40 Allowable Load for Angles as Columns with Maximum Unbraced Length L |
| 142 | Table 2-40M Allowable Load for Angles as Columns with Maximum Unbraced Length L |
| 143 | 2.7 MIDPANEL TIE ROD APPLICATIONS 2.8 MIDPANEL TIE ROD (MPT) USE GUIDE |
| 144 | 2.9 MIDPANEL TIE ROD SELECTIONS |
| 146 | Table 2-41 Midpanel Tie Rod (MPT) Schedule (RS) |
| 147 | Table 2-41M Midpanel Tie Rod (MPT) Schedule (RS) |
| 148 | Table 2-42 Internal Midpanel Tie Rod (MPT) Size (Dia.) Table 2-42M Internal Midpanel Tie Rod (MPT) Size (Dia.) |
| 149 | Table 2-43 Internal Midpanel Tie Rod (MPT) Size (Dia.) Table 2-43M Internal Midpanel Tie Rod (MPT) Size (Dia.) |
| 150 | Table 2-44 Internal Midpanel Tie Rod (MPT) Size (Dia.) Table 2-44M Internal Midpanel Tie Rod (MPT) Size (Dia.) |
| 151 | Table 2-45 Internal Midpanel Tie Rod (MPT) Size (Dia.) Table 2-45M Internal Midpanel Tie Rod (MPT) Size (Dia.) |
| 152 | Table 2-46 Midpanel Tie Rod (MPT) Design Load in Pounds |
| 153 | Table 2-46M Midpanel Tie Rod (MPT) Design Load in Kilograms |
| 154 | Table 2-47 Unreinforced Duct (Wall Thickness) |
| 155 | Table 2-47M Unreinforced Duct (Wall Thickness) |
| 156 | Table 2-48 T-1 Flat Drive Accepted as Reinforcement Table 2-48M T-1 Flat Drive Accepted as Reinforcement |
| 157 | FIGURE 2-7 INSIDE STANDING SEAM – LONGITUDINAL – 2 IN. WG (500 Pa) MAXIMUM |
| 158 | FIGURE 2-8 UNREINFORCED DUCT |
| 159 | FIGURE 2-9 CROSSBROKEN AND BEADED DUCT |
| 160 | FIGURE 2-10 DUCT REINFORCED ON TWO SIDES |
| 161 | FIGURE 2-11 DUCT REINFORCED ON ALL SIDES |
| 162 | FIGURE 2-12 REINFORCEMENT ATTACHMENT |
| 163 | Table 2-49 Duct Over 120 in. (3000 mm) Duct Construction FIGURE 2-13 DUCT OVER 120 IN. (3000 MM) WIDE |
| 164 | FIGURE 2-14 CORNER CLOSURES – SLIPS AND DRIVES |
| 165 | FIGURE 2-15 CORNER CLOSURES – FLANGES |
| 166 | FIGURE 2-16 CORNER CLOSURES – FLANGES |
| 167 | FIGURE 2-17 CORNER CLOSURES – FLANGES |
| 168 | FIGURE 2-18 CORNER CLOSURES |
| 169 | 2.10 COMMENTARY ON ALUMINUM DUCT |
| 170 | Table 2-50 Thickness Adjustments Table 2-51 Dimension Adjustments Table 2-52 Reinforcements |
| 175 | CHAPTER 3 ROUND, OVAL AND FLEXIBLE DUCT 3.1 ROUND DUCT CONSTRUCTION STANDARDS Table 3-1 Mitered Elbows |
| 176 | 3.2 COMMENTARY |
| 177 | FIGURE 3-1 ROUND DUCT TRANSVERSE JOINTS |
| 178 | FIGURE 3-1 ROUND DUCT TRANSVERSE JOINTS (CONTINUED) |
| 179 | FIGURE 3-2 ROUND DUCT LONGITUDINAL SEAMS |
| 180 | Table 3-2 Angle Ring Size Table 3-3 Ring Attachment Schedule Table 3-4 Companion Flange Joints Used As Reinforcement FIGURE 3-3 ROUND DUCT REINFORCEMENT |
| 181 | Table 3-2M Angle Ring Size Table 3-3M Ring Attachment Schedule Table 3-4M Companion Flange Joints Used As Reinforcement FIGURE 3-3M ROUND DUCT REINFORCEMENT |
| 182 | Table 3-5 Round Duct Gage Unreinforced Positive Pressure To 10 in. wg |
| 183 | Table 3-5M Round Duct Gage Unreinforced Positive Pressure To 2500 Pa |
| 184 | Table 3-6 Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 185 | Table 3-6M Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 186 | Table 3-7 Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 187 | Table 3-7M Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 188 | Table 3-8 Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 189 | Table 3-8M Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 190 | Table 3-9 Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 191 | Table 3-9M Min. Required Gage for Longitudinal Seam Duct Under Neg. Pressure |
| 192 | Table 3-10 Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 193 | Table 3-10M Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 194 | Table 3-11 Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 195 | Table 3-11M Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 196 | Table 3-12 Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 197 | Table 3-12M Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 198 | Table 3-13 Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 199 | Table 3-13M Min. Required Gage for Spiral Seam Duct Under Neg. Pressure |
| 200 | Table 3-14 Aluminum Round Duct Gage Schedule Table 3-14M Aluminum Round Duct Gage Schedule |
| 201 | 3.3 FLAT OVAL DUCT CONSTRUCTION STANDARDS 3.4 COMMENTARY |
| 202 | Table 3-15 Flat Oval Duct Gage Positive Pressure To 10 in. wg Table 3-15M Flat Oval Duct Gage Positive Pressure To 2500 Pa |
| 203 | FIGURE 3-4 ROUND DUCT ELBOWS |
| 204 | FIGURE 3-5 90 TEES AND LATERALS |
| 205 | FIGURE 3-6 CONICAL TEES |
| 206 | FIGURE 3-7 FLAT OVAL DUCTS |
| 207 | 3.5 FLEXIBLE AIR DUCT INSTALLATION STANDARDS 3.6 SPECIFICATION FOR JOINING AND ATTACHING FLEXIBLE DUCT 3.7 SPECIFICATION FOR SUPPORTING FLEXIBLE DUCT |
| 209 | FIGURE 3-8 TYPES OF FLEXIBLE DUCT |
| 210 | FIGURE 3-9 TYPICAL ACCESSORIES |
| 211 | FIGURE 3-10 FLEXIBLE DUCT SUPPORTS |
| 212 | FIGURE 3-11 FLEXIBLE DUCT SUPPORTS |
| 213 | 3.8 COMMENTARY |
| 217 | CHAPTER 4 FITTINGS AND OTHER CONSTRUCTION 4.1 REQUIREMENTS |
| 218 | FIGURE 4-1 TYPICAL SUPPLY OR RETURN DUCT |
| 219 | FIGURE 4-2 RECTANGULAR ELBOWS |
| 220 | FIGURE 4-2 RECTANGULAR ELBOWS (CONTINUED) |
| 221 | FIGURE 4-3 VANES AND VANE RUNNERS |
| 222 | FIGURE 4-4 VANE SUPPORT IN ELBOWS |
| 223 | FIGURE 4-5 DIVIDED FLOW BRANCHES |
| 224 | FIGURE 4-6 BRANCH CONNECTION |
| 225 | FIGURE 4-7 OFFSETS AND TRANSITIONS |
| 226 | FIGURE 4-8 OBSTRUCTIONS |
| 227 | CHART 4-1 NUMBER OF SHORT RADIUS VANES1 |
| 228 | CHART 4-1M NUMBER OF SHORT RADIUS VANES2 |
| 229 | FIGURE 4-9 CONSTRUCTION OF SHORT RADIUS VANES3 |
| 233 | CHAPTER 5 HANGERS AND SUPPORTS 5.1 HANGING AND SUPPORTING SYSTEMS 5.2 COMMENTARY |
| 235 | FIGURE 5-1 HANGER ATTACHMENTS TO STRUCTURES |
| 236 | FIGURE 5-2 UPPER ATTACHMENT DEVICES – TYPICAL |
| 237 | FIGURE 5-3 ALTERNATIVE JOIST ATTACHMENTS |
| 238 | FIGURE 5-4 UPPER ATTACHMENTS – TYPICAL |
| 239 | Table 5-1 Rectangular Duct Hangers Minimum Size |
| 240 | Table 5-1M Rectangular Duct Hangers Minimum Size |
| 241 | Table 5-2 Minimum Hanger Sizes for Round Duct |
| 242 | FIGURE 5-5 LOWER HANGER ATTACHMENTS |
| 243 | Table 5-3 Allowable Loads in Pounds for Trapeze Bars |
| 244 | Table 5-3M Allowable Loads in Kilograms for Trapeze Bars |
| 245 | Table 5-4 Channel (Strut) Used as Trapeze |
| 246 | FIGURE 5-6 TRAPEZE LOAD DIAGRAM |
| 247 | FIGURE 5-7 LARGE DUCT SUPPORT |
| 248 | FIGURE 5-8 RISER SUPPORTS – FROM FLOOR |
| 249 | FIGURE 5-8M RISER SUPPORT – FROM FLOOR |
| 250 | FIGURE 5-9 SUPPORTS FROM WALL |
| 251 | FIGURE 5-9M SUPPORT FROM WALL |
| 252 | FIGURE 5-10 RISER SUPPORT – FROM FLOOR |
| 253 | FIGURE 5-11 TYPICAL HVAC UNIT SUSPENSION |
| 257 | CHAPTER 6 EXTERIOR COMPONENTS 6.1 INTRODUCTION |
| 258 | FIGURE 6-1 LOUVERS AND SCREENS |
| 259 | FIGURE 6-1M LOUVERS AND SCREENS |
| 260 | FIGURE 6-2 LOUVER FREE AREA CALCULATION |
| 261 | 6.2 ROOFTOP EQUIPMENT INSTALLATION 6.3 COMMENTARY |
| 262 | FIGURE 6-3 ROOFTOP DUCT INSTALLATION |
| 263 | FIGURE 6-4 EQUIPMENT AND DUCT SUPPORT FLASHING |
| 264 | FIGURE 6-5 RECTANGULAR GOOSENECK |
| 265 | FIGURE 6-6 INTAKE OR EXHAUST VENTILATORS |
| 266 | FIGURE 6-7 LARGE INTAKE OR EXHAUST VENTILATORS |
| 269 | CHAPTER 7 ACCESSORIES FIGURE 7-1 REMOTE HEATING AND COOLING COIL INSTALLATIONS |
| 270 | FIGURE 7-2 DUCT ACCESS DOORS AND PANELS |
| 271 | FIGURE 7-2M DUCT ACCESS DOORS AND PANELS |
| 272 | FIGURE 7-3 ACCESS DOORS – ROUND DUCT |
| 273 | 7.1 VOLUME DAMPERS 7.2 NOTES FOR FIGURES 7-4 AND 7-5 7.3 COMMENTARY |
| 274 | FIGURE 7-4 VOLUME DAMPERS – SINGLE BLADE TYPE |
| 275 | FIGURE 7-5 MULTIBLADE VOLUME DAMPERS |
| 276 | FIGURE 7-6 GRILLE AND REGISTER CONNECTIONS |
| 277 | FIGURE 7-7 CEILING DIFFUSER BRANCH DUCTS |
| 278 | FIGURE 7-8 FLEXIBLE CONNECTIONS AT FAN |
| 279 | FIGURE 7-9 ALTERNATIVE FLEX CONNECTOR DETAILS |
| 280 | FIGURE 7-10 TYPICAL HVAC UNIT CONNECTIONS4 |
| 281 | FIGURE 7-11 FLEXIBLE DUCT LINER INSTALLATION |
| 282 | 7.4 INSTALLATION STANDARDS FOR RECTANGULAR DUCTS USING FLEXIBLE LINER |
| 283 | 7.5 COMMENTARY |
| 285 | FIGURE 7-12 LINER FASTENERS |
| 286 | FIGURE 7-13 OPTIONAL HAT SECTION |
| 287 | FIGURE 7-14 DUCT LINER INTERRUPTION |
| 291 | CHAPTER 8 DOUBLE-WALL DUCT CONSTRUCTION 8.1 INSTALLATION STANDARDS COMMENTARY |
| 292 | FIGURE 8-1 FIRE DAMPER INSTALLATION IN DOUBLE-WALL DUCT |
| 293 | FIGURE 8-2 DOUBLE-WALL ROUND DUCT |
| 294 | FIGURE 8-3 RECTANGULAR DOUBLE-WALL DUCT |
| 295 | FIGURE 8-4 FLAT OVAL DOUBLE-WALL DUCT |
| 296 | FIGURE 8-5 DOUBLE-WALL DUCT FITTING |
| 297 | FIGURE 8-6 DOUBLE-WALL DUCT FITTING |
| 298 | FIGURE 8-7 DOUBLE-WALL DUCT SLEEVE |
| 299 | FIGURE 8-8 DOUBLE-WALL DUCT JOINT |
| 300 | FIGURE 8-9 DOUBLE-WALL DUCT TIE ROD INSTALLATION |
| 301 | FIGURE 8-10 DOUBLE-WALL DUCT ” VAN STONE JOINT |
| 302 | FIGURE 8-11 DOUBLE-WALL DUCT ” DAMPERS |
| 303 | FIGURE 8-12 DOUBLE-WALL DUCT WITH FLANGE CONNECTIONS |
| 304 | FIGURE 8-13 DOUBLE-WALL DUCT ” FLANGE CONNECTION |
| 305 | FIGURE 8-14 DOUBLE-WALL DUCT DETAILS |
| 306 | FIGURE 8-15 DOUBLE-WALL DUCT ACCESS DOORS |
| 309 | CHAPTER 9 EQUIPMENT AND CASINGS 9.1 CASING AND PLENUM CONSTRUCTION STANDARDS |
| 310 | FIGURE 9-1 BUILT-UP STANDING SEAM CASING |
| 311 | FIGURE 9-1M BUILT-UP STANDING SEAM CASING |
| 312 | FIGURE 9-2 STANDING SEAM CASINGS |
| 313 | FIGURE 9-3 ALTERNATE CASING CONSTRUCTION |
| 314 | Table 9-1 Alternate Casing Panels |
| 315 | Table 9-1 Alternate Casing Panels (Continued) |
| 316 | FIGURE 9-4 OVER 2 IN. WG (500 PA) CASING ARRANGEMENT |
| 317 | FIGURE 9-5 OVER 2 IN. WG PRESSURE APPARATUS CASING |
| 318 | FIGURE 9-5M OVER 500 PA PRESSURE APPARATUS CASING |
| 319 | FIGURE 9-6 INSIDE SEAM CASING – 6 IN. WG (1500 PA) MAX. |
| 320 | FIGURE 9-7 DOUBLE – WALL CASING |
| 321 | FIGURE 9-8 ALTERNATE CASING CONSTRUCTION USING TDC OR TDF FLANGES |
| 322 | FIGURE 9-9 ALTERNATE CASING CONSTRUCTION USING TDC OR TDF FLANGES |
| 323 | FIGURE 9-10 CORNER CLOSURES (USING TDC OR TDF) |
| 324 | FIGURE 9-11 DOUBLE-WALL CASING DETAILS FIGURE 9-11M DOUBLE-WALL CASING DETAILS |
| 325 | FIGURE 9-11 DOUBLE-WALL CASING DETAILS (CONTINUED) TYPICAL ACCESS DOOR FIGURE 9-11M DOUBLE-WALL CASING DETAILS (CONTINUED) TYPICAL ACCESS DOOR |
| 326 | FIGURE 9-12 CURB DETAIL |
| 327 | FIGURE 9-13 CASING ELIMINATORS AND DRAIN PANS |
| 328 | FIGURE 9-14 PIPE PENETRATIONS OF CASINGS |
| 329 | FIGURE 9-15 CASING ACCESS DOORS – 2 IN. WG (500 Pa) |
| 330 | Table 9-2 Plenum and Casing Access Doors ” 2 in. wg Table 9-2M Plenum and Casing Access Doors ” 500 Pa |
| 331 | FIGURE 9-16 CASING ACCESS DOORS – 3-10 IN. WG (750-2500 Pa) |
| 332 | 9.2 COMMENTARY 9.3 CASING ARRANGEMENT |
| 337 | CHAPTER 10 SPECIALTY SYSTEMS FIGURE 10-1 LINEAR DIFFUSER PLENUM |
| 338 | 10.1 HOODS |
| 339 | FIGURE 10-2 DISHWASHER VAPOR EXHAUST |
| 340 | 10.2 UNDERGROUND DUCT CONSTRUCTION STANDARDS |
| 341 | FIGURE 10-3 TYPICAL UNDERSLAB DUCT |
| 342 | FIGURE 10-4 ANCHORS FOR DUCT ENCASEMENT |
| 343 | 10.3 COMMENTARY |
| 344 | FIGURE 10-5 SECURITY DUCT BARRIER DETAIL |
| 345 | FIGURE 10-6 ALTERNATIVE SECURITY BARRIER DETAIL |
| 349 | CHAPTER 11 FUNCTIONAL CRITERIA 11.1 FUNCTIONAL CRITERIA FOR DUCTS 11.2 RECTANGULAR DUCTS |
| 350 | 11.3 COMMENTARY |
| 351 | FIGURE 11-1 MODELS FOR FUNCTIONAL STANDARDS |
| 352 | FIGURE 11-2 TEST DUCT CONFIGURATION |
| 353 | FIGURE 11-3 DEFLECTION AND LEAKAGE MEASUREMENT |
| 354 | SMACNA DUCT PERFORMANCE TEST STANDARD NO. DPTS-2005 |
| 356 | 11.4 PROCEDURE FOR RATING DUCT CONSTRUCTION METHODS RELATIVE TO THE SMACNA CONSTRUCTION TABLES |
| 357 | 11.5 NOTES ON SPECIMEN TESTING |
| 358 | 11.6 SOUND AND VIBRATION |
| 359 | Table ‘A’ Minimum Threshold Velocities at Various Internal Static Pressures |
| 361 | FIGURE 11-4 TEST APPARATUS |
| 362 | FIGURE 11-4M TEST APPARATUS |
| 363 | Table ‘B’ Relative Vibration of Various Ducts |
| 365 | FIGURE 11-5 OSCILLOGRAPH TRACES |
| 369 | APPENDIX A Galvanized Sheet Thickness Tolerances |
| 370 | Manufacturers Standard Gage-Thickness—Uncoated Steel |
| 371 | Stainless Steel Sheet Thickness |
| 372 | Aluminum Sheet Thickness—Alloy 3003-H14 |
| 373 | Metric Conversion Chart |
| 374 | Duct Surface Area In Square Feet Per Linear Foot |
| 375 | Galvanized Sheet Weight |
| 376 | Galvanized Sheet Weight (Continued) |
| 377 | Approximate Weight – Round Duct in Pounds Per Linear Foot |
| 378 | Area And Circumferences of Circles |
| 379 | Angle, Bar and Channel Properties |
| 380 | A.1 CONTRACTOR’S ANALYSIS OF SHOP STANDARDS A.2 NOTES |
| 381 | Sample Worksheet |
| 382 | SINGLE PATH AIR SYSTEMS |
| 383 | DUAL PATH AIR SYSTEMS |
| 384 | TERMINOLOGY FOR CENTRAL STATION APPARATUS |
| 385 | MOTOR ARRANGEMENTS |
| 386 | FAN ROTATION & DISCHARGE POSITIONS |
| 387 | TYPICAL BELT GUARDS |
| 388 | TYPICAL ISOLATION DEVICES |
| 389 | A.3 RADIATION PROTECTION AT WALL OPENINGS FOR DUCT OR PIPE |
| 391 | RADIATION PROTECTION AT WALL OPENINGS |
| 392 | RADIATION PROTECTION AT WALL OPENINGS |
| 393 | CONTRIBUTORS TO DOCUMENTS PRECEDING THE SECOND EDITION OF HVAC DUCT CONSTRUCTION STANDARDS METAL AND FLEXIBLE |
