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ICC IMC Commentary 2021 1stptg

ICC IMC Commentary 2021 1stptg

$80.71

International Mechanical Code and Commentary

Published By Publication Date Number of Pages
ICC 2021
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This comprehensive publication provides a convenient reference for regulations in the 2021 International Mechanical Code® (IMC®).

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PDF Pages PDF Title
1 2021 IMC® CODE AND COMMENTARY
2 2021 IMC® CODE AND COMMENTARY TITLE PAGE
3 COPYRIGHT
4 PREFACE
6 TABLE OF CONTENTS
8 CHAPTER 1: SCOPE AND ADMINISTRATION
GENERAL COMMENTS
PURPOSE
9 PART 1—SCOPE AND APPLICATION
SECTION 101 SCOPE AND GENERAL REQUIREMENTS
SECTION 102 APPLICABILITY
12 PART 2—ADMINISTRATION AND ENFORCEMENT
SECTION 103 CODE COMPLIANCE AGENCY
13 SECTION 104 DUTIES AND POWERS OF THE CODE OFFICIAL
15 SECTION 105 APPROVAL
16 SECTION 106 PERMITS
19 SECTION 107 TEMPORARY EQUIPMENT, SYSTEMS AND USES
20 SECTION 108 INSPECTIONS AND TESTING
22 SECTION 109 FEES
23 SECTION 110 CONSTRUCTION DOCUMENTS
24 SECTION 111 NOTICE OF APPROVAL
SECTION 112 SERVICE UTILITIES
25 SECTION 113 STOP WORK ORDER
SECTION 114 MEANS OF APPEALS
26 SECTION 115 VIOLATIONS
27 BIBLIOGRAPHY
28 CHAPTER 2: DEFINITIONS
GENERAL COMMENTS
PURPOSE
SECTION 201 GENERAL
SECTION 202 GENERAL DEFINITIONS
32 COMMENTARY FIGURE 202(1) BREATHING ZONE
36 COMMENTARY FIGURE 202(2) COMMERCIAL KITCHEN HOODS
56 COMMENTARY FIGURE 202(3) THERMAL RESISTANCE
58 BIBLIOGRAPHY
60 CHAPTER 3: GENERAL REGULATIONS
GENERAL COMMENTS
PURPOSE
SECTION 301 GENERAL
64 COMMENTARY FIGURE 301.9 TYPICAL LABEL FOR A CATEGORY I GAS-FIRED FURNACE
66 SECTION 302 PROTECTION OF STRUCTURE
67 COMMENTARY FIGURE 302.3.1 HOLES AND NOTCHES IN WOOD JOISTS
COMMENTARY FIGURE 302.3.2 NOTCHES IN WOOD STUDS
COMMENTARY FIGURE 302.3.3 BORED HOLES
68 SECTION 303 EQUIPMENT AND APPLIANCE LOCATION
70 SECTION 304 INSTALLATION
71 COMMENTARY FIGURE 304.1 EXCERPTS FROM TYPICAL MANUFACTURER’S INSTALLATION MANUALS
72 COMMENTARY FIGURE 304.1—continued EXCERPTS FROM TYPICAL MANUFACTURER’S INSTALLATION MANUALS
74 COMMENTARY FIGURE 304.3 OIL-FIRED WATER HEATER INSTALLATION IN A HAZARDOUS LOCATION
75 COMMENTARY FIGURE 304.5.1.1 NATURAL VENTILATION OF SPACES CONTAINING HYDROGEN-GENERATING APPLIANCES
77 COMMENTARY FIGURE 304.6(1) APPLIANCE INSTALLATION IN A PUBLIC GARAGE
78 COMMENTARY FIGURE 304.6(2) APPLIANCE PROTECTION AGAINST MOTOR VEHICLE IMPACT
79 COMMENTARY FIGURE 304.7 SUSPENDED APPLIANCE IN RESIDENTIAL GARAGE
80 SECTION 305 PIPING SUPPORT
81 COMMENTARY FIGURE 304.11(1) GUARD REQUIREMENTS
COMMENTARY FIGURE 304.11(2) FALL ARREST/RESTRAINT DEVICE
82 COMMENTARY FIGURE 305.4 POINT OF SAG BETWEEN HANGERS
TABLE 305.4 PIPING SUPPORT SPACINGa
83 COMMENTARY FIGURE 305.5 PIPE PROTECTION
SECTION 306 ACCESS AND SERVICE SPACE
85 COMMENTARY FIGURE 306.3 REMOTE LOCATION REQUIREMENTS (ATTIC INSTALLATION)
87 COMMENTARY FIGURE 306.5(1) ACCESS HEIGHT ABOVE GRADE
88 COMMENTARY FIGURE 306.5(2) APPLIANCE ACCESS
COMMENTARY FIGURE 306.5.1 APPLIANCES AND EQUIPMENT ON SLOPED ROOFS
89 SECTION 307 CONDENSATE DISPOSAL
90 COMMENTARY FIGURE 307.2.1.1 ALLOWABLE RECEPTORS FOR CONDENSATE
TABLE 307.2.2 CONDENSATE DRAIN SIZING
91 COMMENTARY FIGURE 307.2.3(1) PRIMARY AND AUXILIARY DRAIN PAN FLOAT SWITCH
92 COMMENTARY FIGURE 307.2.3(2) CONDENSATE OVERFLOW SWITCH
COMMENTARY FIGURE 307.2.3(3) IN-LINE CONDENSATE OVERFLOW SWITCH
COMMENTARY FIGURE 307.2.3.2 APPLIANCES, EQUIPMENT AND INSULATION IN PANS
93 COMMENTARY FIGURE 307.2.3.3 LABELING OF CONCEALED CONDENSATE PIPING TERMINATION
94 COMMENTARY FIGURE 307.2.5 DRAIN LINE ACCESS MEANS
COMMENTARY FIGURE 307.3 CONDENSATE PUMP
95 SECTION 308 CLEARANCE REDUCTION
COMMENTARY FIGURE 308.1(1) CLEARANCE TO COMBUSTIBLES—EXAMPLES OF HOW TO MEASURE
96 COMMENTARY FIGURE 308.1(2) REDUCED CLEARANCE FOR 3 1/2-INCH BRICK WALL
COMMENTARY FIGURE 308.1(3) VENTILATED MASONRY CLEARANCE REDUCTION SYSTEM
97 COMMENTARY FIGURE 308.2 TYPICAL CLEARANCES FOR A RADIANT-TYPE WOOD-BURNING STOVE
COMMENTARY FIGURE 308.3 REDUCED CLEARANCE TO COMBUSTIBLES
98 TABLE 308.4.2 CLEARANCE REDUCTION METHODSb
100 COMMENTARY FIGURE 308.4.2(1) REDUCED CLEARANCE TO COMBUSTIBLES
COMMENTARY FIGURE 308.4.2(2) CLEARANCE TO COMBUSTIBLES
101 COMMENTARY FIGURE 308.4.2(3) CLEARANCE TO COMBUSTIBLES
COMMENTARY FIGURE 308.4.2(4) CLEARANCE TO COMBUSTIBLES
102 SECTION 309 TEMPERATURE CONTROL
SECTION 310 EXPLOSION CONTROL
103 SECTION 311 SMOKE AND HEAT VENTS
SECTION 312 HEATING AND COOLING LOAD CALCULATIONS
BIBLIOGRAPHY
104 CHAPTER 4: VENTILATION
GENERAL COMMENTS
PURPOSE
105 SECTION 401 GENERAL
106 COMMENTARY FIGURE 401.2 GROUP R-2 APARTMENT BUILDING
107 COMMENTARY FIGURE 401.4(1) INTAKE OPENING
108 COMMENTARY FIGURE 401.4(2) INTAKE OPENING
TABLE 401.5 OPENING SIZES IN LOUVERS, GRILLES AND SCREENS PROTECTING AIR INTAKE OPENINGS
COMMENTARY FIGURE 401.4(3) COMBINATION EXHAUST AND INTAKE AIR FITTING
109 SECTION 402 NATURAL VENTILATION
110 COMMENTARY FIGURE 402.2 NATURAL LIGHT AND VENTILATION WINDOWS
COMMENTARY FIGURE 402.3 NATURAL VENTILATION FROM ADJOINING SPACE
111 COMMENTARY FIGURE 402.4 VENTILATION OPENINGS BELOW GRADE
SECTION 403 MECHANICAL VENTILATION
112 COMMENTARY FIGURE 403.1(1) AN ENERGY-CONSERVING ALTERNATIVE TO NATURAL VENTILATION
COMMENTARY FIGURE 403.1(2) TYPICAL HVAC SYSTEM
117 COMMENTARY FIGURE 403.3.1.1(1) OCCUPIED ZONE
118 COMMENTARY FIGURE 403.3.1.1(2) WHEEL-TYPE ENERGY RECOVERY
119 COMMENTARY FIGURE 403.3.1.1(3) NAIL SALON STATIONS
COMMENTARY FIGURE 403.3.1.1(4) MANICURE EXHAUST TABLE
120 EQUATION 4-1
TABLE 403.3.1.1.1.2 ZONE AIR DISTRIBUTION EFFECTIVENESS
121 TABLE 403.3.1.1 MINIMUM VENTILATION RATES
122 TABLE 403.3.1.1—continued MINIMUM VENTILATION RATES
123 TABLE 403.3.1.1—continued MINIMUM VENTILATION RATES
124 EQUATION 4-2
EQUATION 4-3
EQUATION 4-4
EQUATION 4-5
125 TABLE 403.3.1.1.2.3.2 SYSTEM VENTILATION EFFICIENCY
EQUATION 4-6
EQUATION 4-7
EQUATION 4-8
132 EQUATION 4-9
134 TABLE 403.3.2.3 MINIMUM REQUIRED LOCAL EXHAUST RATES FOR GROUP R-2, R-3 AND R-4 OCCUPANCIES
COMMENTARY FIGURE 403.3.2.4 LABELING OF CONTROLS FOR WHOLE-HOUSE VENTILATION SYSTEM
SECTION 404 ENCLOSED PARKING GARAGES
135 COMMENTARY FIGURE 403.3.2.5 EXHAUST EQUIPMENT MUST BE LISTED AND LABELED
COMMENTARY FIGURE 404.1 MECHANICAL VENTILATION OF ENCLOSED PARKING GARAGES
136 SECTION 405 SYSTEMS CONTROL
SECTION 406 VENTILATION OF UNINHABITED SPACES
SECTION 407 AMBULATORY CARE FACILITIES AND GROUP I-2 OCCUPANCIES
BIBLIOGRAPHY
138 CHAPTER 5: EXHAUST SYSTEMS
GENERAL COMMENTS
PURPOSE
SECTION 501 GENERAL
141 COMMENTARY FIGURE 501.3.1(1) SEPARATION REQUIREMENTS FOR ROOF EXHAUST (EXPLOSIVE OR FLAMMABLE) DUCT TERMINATIONS
COMMENTARY FIGURE 501.3.1(2) SEPARATION REQUIREMENTS FOR ROOF EXHAUST (EXPLOSIVE OR FLAMMABLE) DUCT TERMINATIONS
143 SECTION 502 REQUIRED SYSTEMS
145 EQUATION 5-1
160 COMMENTARY FIGURE 502.14(1) OVERHEAD SOURCE CAPTURE SYSTEM
161 COMMENTARY FIGURE 502.14(2) WALL-MOUNTED SOURCE CAPTURE SYSTEM
163 COMMENTARY FIGURE 502.20(1) PEDICURE STATION
COMMENTARY FIGURE 502.20(2) MANICURE STATION
COMMENTARY FIGURE 502.20.1(1) MANICURE AND PEDICURE STATION EXHAUST SYSTEM
COMMENTARY FIGURE 502.20.1(2) MANICURE AND PEDICURE STATIONS
164 SECTION 503 MOTORS AND FANS
165 SECTION 504 CLOTHES DRYER EXHAUST
166 COMMENTARY FIGURE 504.2 NONCOMBUSTIBLE WALL RECEPTACLE FOR CLOTHES DRYER EXHAUST DUCT
168 COMMENTARY FIGURE 504.4 JOINTS IN DRYER EXHAUST DUCT MUST BE SEALED
COMMENTARY FIGURE 504.4.1 DRYER EXHAUST TERMINAL MINIMUM CLEARANCE
169 COMMENTARY FIGURE 504.4.2 DRYER DUCT TERMINALS
170 COMMENTARY FIGURE 504.5 DRYER EXHAUST DUCT POWER VENTILATOR
COMMENTARY FIGURE 504.8 DRYER EXHAUST DUCT PROTECTION
171 COMMENTARY FIGURE 504.9.2(1) DRYER EXHAUST DUCT INSTALLATION
172 COMMENTARY FIGURE 504.9.2(2) FRAMING CAVITIES MUST BE LARGE ENOUGH TO ALLOW A 4-INCH EXHAUST DUCT WITHOUT DEFORMATION
173 COMMENTARY FIGURE 504.9.4.1 CLOTHES DRYER EXHAUST DUCT LENGTH
TABLE 504.9.4.1 DRYER EXHAUST DUCT FITTING EQUIVALENT LENGTH
174 COMMENTARY FIGURE 504.9.5 EXAMPLE OF PERMANENT LABEL OF EQUIVALENT LENGTH
175 COMMENTARY FIGURE 504.9.6 DOMESTIC CLOTHES DRYER ROUGH-IN
176 COMMENTARY FIGURE 504.10 MULTIPLE DRYER EXHAUST SYSTEM
178 SECTION 505 DOMESTIC COOKING EXHAUST EQUIPMENT
180 SECTION 506 COMMERCIAL KITCHEN HOOD VENTILATION SYSTEM DUCTS AND EXHAUST EQUIPMENT
182 COMMENTARY FIGURE 506.3.1.1(1) TYPICAL FACTORY-BUILT GREASE DUCT LABEL
COMMENTARY FIGURE 506.3.1.1(2) FACTORY-BUILT GREASE DUCTS
183 COMMENTARY FIGURE 506.3.1.2(1) PROHIBITED INSTALLATION OF FLEXIBLE AIR DUCT CONNECTING TO A MAKEUP AIR PLENUM ABOVE A TYPE I HOOD
COMMENTARY FIGURE 506.3.1.2(2) BACKWALL MAKEUP AIR PLENUM
184 COMMENTARY FIGURE 506.3.2.1(1) TYPES OF DUCT JOINTS
185 COMMENTARY FIGURE 506.3.2.1(2) WELDED FLANGE JOINT
COMMENTARY FIGURE 506.3.2.2 DUCT-TO-HOOD JOINTS
188 COMMENTARY FIGURE 506.3.6 PROHIBITED INSTALLATION OF A GREASE DUCT (Less than 18-inch clearance to combustibles)
189 COMMENTARY FIGURE 506.3.7(1) PREVENTION OF GREASE ACCUMULATION
COMMENTARY FIGURE 506.3.7(2) GREASE DUCT
190 COMMENTARY FIGURE 506.3.7(3) GREASE DUCT WITH LONG HORIZONTAL DUCT RUN
COMMENTARY FIGURE 506.3.7.1(1) GREASE COLLECTION RESERVOIR
191 COMMENTARY FIGURE 506.3.7.1(2) GREASE RESERVOIR
192 COMMENTARY FIGURE 506.3.8(1) GREASE DUCT CLEANOUT
COMMENTARY FIGURE 506.3.8(2) GREASE DUCT CLEANOUT
194 COMMENTARY FIGURE 506.3.10 UNDERGROUND GREASE DUCT
195 COMMENTARY FIGURE 506.3.11 TERMINATION THROUGH EXTERIOR WALLS
196 COMMENTARY FIGURE 506.3.11.1(1) EXHAUST DUCT ENCLOSED BY A VERTICAL SHAFT
197 COMMENTARY FIGURE 506.3.11.1(2) EXHAUST DUCT PENETRATING A WALL
198 COMMENTARY FIGURE 506.3.11.2(1) FIELD-APPLIED GREASE DUCT ENCLOSURE
199 COMMENTARY FIGURE 506.3.11.2(2) PARTIAL APPLICATION OF FIELD-APPLIED GREASE DUCT ENCLOSURE (PROHIBITED)
200 COMMENTARY FIGURE 506.3.13.2 CLEARANCES TO OPENINGS FOR TYPE I EXHAUST DUCT TERMINATIONS
202 COMMENTARY FIGURE 506.5.1(1) ROOF-MOUNTED EXHAUST FAN FOR A TYPE I HOOD
COMMENTARY FIGURE 506.5.1(2) INLINE EXHAUST FAN FOR A TYPE I HOOD
203 COMMENTARY FIGURE 506.5.1.2 AN INLINE FAN MUST BE LOCATED IN A ROOM OR SPACE HAVING THE SAME FIRE-RESISTANCE RATING AS THE GREASE-DUCT ENCLOSURE
204 COMMENTARY FIGURE 506.5.2 POLLUTION-CONTROL UNIT
COMMENTARY FIGURE 506.5.3(1) KITCHEN EXHAUST FAN MOUNTED 18 INCHES ABOVE THE ROOF SURFACE WITH VENTS FOR THE SHAFT
205 COMMENTARY FIGURE 506.5.3(2) RESTRAINT CABLE FOR HINGED UPBLAST EXHAUST FAN
SECTION 507 COMMERCIAL KITCHEN HOODS
206 COMMENTARY FIGURE 506.5.6 EXHAUST OUTLET TERMINATION
207 COMMENTARY FIGURE 507.1(1) TYPICAL LABEL FOR A TYPE I HOOD
208 COMMENTARY FIGURE 507.1(2) ELECTRIC DEEP FAT FRYER WITH RECIRCULATING HOOD
COMMENTARY FIGURE 507.1(3) ELECTRIC GRIDDLE WITH RECIRCULATING HOOD
209 COMMENTARY FIGURE 507.1(4) HIBACHI TABLE WITH INTEGRAL DOWN-DRAFT EXHAUST SYSTEM
COMMENTARY FIGURE 507.1(5) DOWN-DRAFT EXHAUST SYSTEM
210 COMMENTARY FIGURE 507.1(6) SMOKER OVEN WITH INTEGRAL EXHAUST
COMMENTARY FIGURE 507.1(7) SMOKER OVEN WITH INTEGRAL EXHAUST
211 COMMENTARY FIGURE 507.1.1 COMMERCIAL KITCHEN EXHAUST HOOD SYSTEMS SHALL OPERATE DURING THE COOKING OPERATION
212 COMMENTARY FIGURE 507.1.1.1 SENSORS FOR AUTOMATIC OPERATION MUST BE LOCATED IN EACH HOOD SERVED BY A COMMON EXHAUST SYSTEM
213 COMMENTARY FIGURE 507.1.3 WATER HEATER NEXT TO A TYPE I HOOD
218 COMMENTARY FIGURE 507.2.6 TYPE I HOOD THAT MAY BE LISTED FOR REDUCED CLEARANCE
219 COMMENTARY FIGURE 507.2.7 GREASE DUCT ENCLOSURE SYSTEM USED ON THE TOP OF A TYPE I HOOD
COMMENTARY FIGURE 507.2.8 APPLIANCE VENTING UNDERNEATH A TYPE I HOOD
220 TABLE 507.2.8 MINIMUM DISTANCE BETWEEN THE LOWEST EDGE OF A GREASE FILTER AND THE COOKING SURFACE OR THE HEATING SURFACE
221 COMMENTARY FIGURE 507.2.9 GREASE GUTTER WITH RESERVOIR
COMMENTARY FIGURE 507.2.8.2(1) MINIMUM ANGLE OF GREASE FILTERS
COMMENTARY FIGURE 507.2.8.2(2) GREASE FILTER MOUNTED AT MINIMUM ANGLE OF 45 DEGREES
222 COMMENTARY FIGURE 507.3 TYPE II HOOD ABOVE A DISHWASHER
223 COMMENTARY FIGURE 507.4.1(1) CANOPY HOOD—ELEVATION
224 COMMENTARY FIGURE 507.4.1(2) WALL-TYPE CANOPY HOOD
COMMENTARY FIGURE 507.4.1(3) WALL-TYPE CANOPY HOOD WITH MAKEUP AIR
COMMENTARY FIGURE 507.4.1(4) ISLAND-TYPE CANOPY HOOD
225 COMMENTARY FIGURE 507.4.1(5) BACK-TO-BACK (DOUBLE ISLAND) TYPE CANOPY HOOD
COMMENTARY FIGURE 507.4.1(6) CANOPY HOOD WITH SIDE PANELS—SIDE VIEW
COMMENTARY FIGURE 507.4.1(7) CANOPY HOOD WITH SIDE PANELS—ELEVATION
226 COMMENTARY FIGURE 507.4.2 NONCANOPY-TYPE HOOD (LOW-WALL OR BACKSHELF)
COMMENTARY FIGURE 507.5(1) CANOPY HOOD SERVING MULTIPLE APPLIANCES
227 COMMENTARY FIGURE 507.5(2) BACKSHELF/PASS-OVER HOOD
COMMENTARY FIGURE 507.5(3) BACKSHELF HOOD WITH ONE SIDE PANEL
228 COMMENTARY FIGURE 507.5.1 HOOD APPLIANCE PLAN VIEW
230 SECTION 508 COMMERCIAL KITCHEN MAKEUP AIR
231 COMMENTARY FIGURE 508.1(1) MAKEUP AIR
232 COMMENTARY FIGURE 508.1(2) MAKEUP AIR
COMMENTARY FIGURE 508.1(3) MAKEUP AIR SUPPLIED FROM FACE OF HOOD
233 COMMENTARY FIGURE 508.1(4) MAKEUP AIR SUPPLIED TO HOOD
234 COMMENTARY FIGURE 508.1.2 OUTDOOR AIR BALANCE REQUIRED
235 SECTION 509 FIRE SUPPRESSION SYSTEMS
COMMENTARY FIGURE 509.1 SUPPRESSION SYSTEM FOR COMMERCIAL-TYPE COOKING EQUIPMENT
SECTION 510 HAZARDOUS EXHAUST SYSTEMS
239 COMMENTARY FIGURE 510.4 MANIFOLDED HAZARDOUS EXHAUST DUCTS
244 COMMENTARY FIGURE 510.8.1 DUCT JOINTS
TABLE 510.8 MINIMUM DUCT THICKNESS
TABLE 510.8.2 CLEARANCE TO COMBUSTIBLES
245 SECTION 511 DUST, STOCK AND REFUSE CONVEYING SYSTEMS
247 TABLE 511.2 CONSTRUCTION, CLEARANCE AND TERMINATION REQUIREMENTS FOR SINGLE-WALL METAL CHIMNEYS
SECTION 512 SUBSLAB SOIL EXHAUST SYSTEMS
248 SECTION 513 SMOKE CONTROL SYSTEMS
251 COMMENTARY FIGURE 513.4.1 STACK EFFECT
255 EQUATION 5-2
257 COMMENTARY FIGURE 513.8(1) SMOKE LAYER INTERFACE
258 COMMENTARY FIGURE 513.8(2) AXISYMMETRICAL PLUME
259 COMMENTARY FIGURE 513.8(3) BALCONY SPILL PLUME
COMMENTARY FIGURE 513.8(4) WINDOW PLUME
260 COMMENTARY FIGURE 513.8(5) PLUGHOLING
COMMENTARY FIGURE 513.8.1(1) EXAMPLE, CRITICAL LEVEL OF SMOKE
261 COMMENTARY FIGURE 513.8.1(2) SMOKE LAYER
263 EQUATION 5-3
268 SECTION 514 ENERGY RECOVERY VENTILATION SYSTEMS
270 COMMENTARY FIGURE 514.2(1) COMMERCIAL KITCHEN OVENS
COMMENTARY FIGURE 514.2(2) COMMERCIAL KITCHEN OVENS
BIBLIOGRAPHY
272 CHAPTER 6: DUCT SYSTEMS
GENERAL COMMENTS
PURPOSE
SECTION 601 GENERAL
273 COMMENTARY FIGURE 601.2(1) POSITIVE PRESSURE IN CORRIDOR PROVIDES MAKEUP AIR FOR SMALL EXHAUST FANS IN ADJACENT ROOMS
274 COMMENTARY FIGURE 601.2(2) ELEVATION VIEW FOR COMMENTARY FIGURE 601.2(1)
275 COMMENTARY FIGURE 601.2.1(1) CORRIDOR NOT FIRE-RESISTANCE RATED: SPACE ABOVE CEILING CAN BE USED AS A PLENUM
COMMENTARY FIGURE 601.2.1(2) SPACE ABOVE CEILING PROHIBITED FROM BEING USED AS A PLENUM
276 COMMENTARY FIGURE 601.2.1(3) FIRE-RESISTANCE-RATED CEILING IN CORRIDOR: SPACE ABOVE CEILING CAN BE USED AS A PLENUM
COMMENTARY FIGURE 601.2.1(4) FIRE-RESISTANCE-RATED CORRIDOR WITH SUSPENDED NONRATED CEILING
277 COMMENTARY FIGURE 601.2.1(5) SPACE ABOVE CEILING CAN BE USED AS A PLENUM IF PART OF AN ENGINEERED SMOKE CONTROL SYSTEM
279 SECTION 602 PLENUMS
COMMENTARY FIGURE 602.1(1) TYPICAL FLOOR/CEILING OR ROOF/CEILING RETURN AIR PLENUM
280 COMMENTARY FIGURE 602.1(2) MECHANICAL ROOM USED AS RETURN AIR PLENUM
281 COMMENTARY FIGURE 602.1(3) MULTIPLE FIRE AREAS
COMMENTARY FIGURE 602.1(4) PROHIBITED RETURN AIR PLENUM APPLICATION
282 COMMENTARY FIGURE 602.2 PLENUM ENCLOSURE CONSTRUCTION
285 COMMENTARY FIGURE 602.2.1.5 DISCRETE PRODUCTS
287 COMMENTARY FIGURE 602.2.1.8(1) PIPE AND DUCT INSULATION FOR USE IN PLENUMS
COMMENTARY FIGURE 602.2.1.8(2) PIPE NSULATION
288 COMMENTARY FIGURE 602.2.1.8(3) DUCT NSULATION
289 COMMENTARY FIGURE 602.3(1) ACCEPTABLE STUD AND JOIST SPACE PLENUM INSTALLATION
SECTION 603 DUCT CONSTRUCTION AND INSTALLATION
290 COMMENTARY FIGURE 602.3(2) PROHIBITED STUD AND JOIST SPACE PLENUM INSTALLATION
291 TABLE 603.4 DUCT CONSTRUCTION MINIMUM SHEET METAL THICKNESS FOR SINGLE DWELLING UNITSa
293 COMMENTARY FIGURE 603.5.2 NONMETALLIC PHENOLIC DUCTS
294 COMMENTARY FIGURE 603.6(1) FLEXIBLE CONNECTOR
COMMENTARY FIGURE 603.6(2) TESTING OF FLEXIBLE AIR DUCTS AND CONNECTORS
295 COMMENTARY FIGURE 603.6(3) SAMPLE LABELS
COMMENTARY FIGURE 603.6(4) SAMPLE LABELS
296 COMMENTARY FIGURE 603.6(5) INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS(Courtesy of Air Diffusion Council)(continued)
297 COMMENTARY FIGURE 603.6(5)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
298 COMMENTARY FIGURE 603.6(5)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
299 COMMENTARY FIGURE 603.6(5)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
300 COMMENTARY FIGURE 603.6(5)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
301 COMMENTARY FIGURE 603.6(5)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
302 COMMENTARY FIGURE 603.6(5)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
304 COMMENTARY FIGURE 603.7 FURNACE DUCTS IN PRIVATE GARAGE
305 COMMENTARY FIGURE 603.8.2 UNDERGROUND DUCTS REQUIRE AN AIR LEAKAGE TEST BEFORE BURIAL
307 COMMENTARY FIGURE 603.9(1) TYPICAL HVAC METAL DUCT JOINTS REQUIRING SEALING
COMMENTARY FIGURE 603.9(2) BUTTON-LOCK AND SNAP-LOCK DUCT SEAMS
309 COMMENTARY FIGURE 603.17(1) AIR DISPERSION SYSTEM
310 COMMENTARY FIGURE 603.17(2) AIR DISPERSION SYSTEM
SECTION 604 INSULATION
311 COMMENTARY FIGURE 604.3 DUCT COVERINGS AND LININGS
312 SECTION 605 AIR FILTERS
314 SECTION 606 SMOKE DETECTION SYSTEMS CONTROL
315 COMMENTARY FIGURE 606.2(1) AIR DISTRIBUTION SYSTEM SERVING NOT MORE THAN ONE SPACE
COMMENTARY FIGURE 606.2(2) AIR DISTRIBUTION SYSTEM SERVING MORE THAN ONE SPACE
316 COMMENTARY FIGURE 606.2.1 SMOKE DETECTOR REQUIRED IN RETURN AIR SYSTEMS WITH FLOW GREATER THAN 2000 CFM
317 COMMENTARY FIGURE 606.2.2(1) LOCATION OF SMOKE DETECTORS IN COMMON RETURN AIR PLENUM
318 COMMENTARY FIGURE 606.2.2(2) LOCATION OF SMOKE DETECTOR, EXCEPTION ITEM 1
COMMENTARY FIGURE 606.2.2(3) TYPICAL FAN-POWERED TERMINAL UNIT
319 COMMENTARY FIGURE 606.2.3 RETURN RISER
320 SECTION 607 DUCT AND TRANSFER OPENINGS
COMMENTARY FIGURE 607.1(1) FIRE DAMPER
321 COMMENTARY FIGURE 607.1(2) SMOKE DAMPER
COMMENTARY FIGURE 607.1(3) COMBINATION FIRE/SMOKE DAMPER
322 COMMENTARY FIGURE 607.1(4) CEILING DAMPERS
COMMENTARY FIGURE 607.1(5) FIRE DAMPER IN WALL FRAME
323 COMMENTARY FIGURE 607.1.1 HORIZONTAL DUCT BETWEEN TWO SHAFTS
326 [BF] TABLE 607.3.2.1 FIRE DAMPER RATING
COMMENTARY FIGURE 607.3.1(1) DYNAMIC RATED FIRE DAMPERS
327 COMMENTARY FIGURE 607.3.1(2) CEILING RADIATION DAMPER IN A SUSPENDED CEILING
329 COMMENTARY FIGURE 607.3.3.2(1) LOCATION OF SMOKE DETECTORS IN DUCTS NEAR SMOKE/FIRE DAMPERS
COMMENTARY FIGURE 607.3.3.2(2) LOCATION OF SMOKE DETECTORS NEAR SMOKE/FIRE DAMPERS IN AIR TRANSFER OPENING
330 COMMENTARY FIGURE 607.5 FIRE DAMPERS IN RATED WALL
332 COMMENTARY FIGURE 607.5.2(1) EXCEPTION 3: FIRE DAMPERS NOT REQUIRED WHERE DUCT IS 26-GAGE METAL AND CONTINUOUS
333 COMMENTARY FIGURE 607.5.2(2) DUCT PENETRATION OF FIRE BARRIER
334 COMMENTARY FIGURE 607.5.3(1) FIRE DAMPERS NOT REQUIRED—EXCEPTION 1
COMMENTARY FIGURE 607.5.3(2) FIRE DAMPERS NOT REQUIRED—EXCEPTION 3
337 COMMENTARY FIGURE 607.5.5(1) ACCEPTABLE METHOD OF SUBDUCTING
COMMENTARY FIGURE 607.5.5(2) PROHIBITED METHOD OF SUBDUCTING
338 COMMENTARY FIGURE 607.5.5.2(1) VERTICAL SHAFT—BOTTOM ENCLOSURE
339 COMMENTARY FIGURE 607.5.5.2(2) VERTICAL SHAFTS—BOTTOM ENCLOSURES ROOM
COMMENTARY FIGURE 607.5.5.2(3) VERTICAL SHAFTS—BOTTOM ENCLOSURES WITH DRAFTSTOPPING
COMMENTARY FIGURE 607.5.5.2(4) VERTICAL SHAFTS—BOTTOM ENCLOSURES WITH FIRE SPRINKLERS
340 COMMENTARY FIGURE 607.5.5.2(5) VERTICAL SHAFTS—BOTTOM ENCLOSURES
COMMENTARY FIGURE 607.5.7(1) SMOKE DAMPER REQUIRED IN AIR TRANSFER OPENING IN A SMOKE PARTITION
341 COMMENTARY FIGURE 607.5.7(2) SMOKE DAMPER NOT REQUIRED WHERE AIR TRANSFER OPENING IS DUCTED
COMMENTARY FIGURE 607.5.7(3) SMOKE DAMPER NOT REQUIRED WHERE AIR TRANSFER OPENING IS DUCTED
342 COMMENTARY FIGURE 607.6.1(1) AIR DUCT PENETRATION OF A FIRE-RESISTANCE-RATED FLOOR/CEILING ASSEMBLY
343 COMMENTARY FIGURE 607.6.1(2) EXCEPTION: FIRE DAMPERS NOT REQUIRED AT EVERY FLOOR
345 COMMENTARY FIGURE 607.6.3(1) DUCT PENETRATION OF NONFIRE-RESISTANCE-RATED ASSEMBLIES
SECTION 608 BALANCING
346 COMMENTARY FIGURE 608.1 MEANS TO ADJUST AIRFLOW TO BALANCE VENTILATION AIR DISTRIBUTION
COMMENTARY FIGURE 607.6.3(2) FIRE DAMPERS IN DUCTS PENETRATING NONFIRE-RESISTANCE-RATED ASSEMBLIES
BIBLIOGRAPHY
348 CHAPTER 7: COMBUSTION AIR
GENERAL COMMENTS
PURPOSE
SECTION 701 GENERAL
350 COMMENTARY FIGURE 701.2 SIMPLIFIED EXAMPLE SCHEMATIC OF COMBUSTION AIR DAMPER/APPLIANCE INTERLOCK
352 CHAPTER 8: CHIMNEYS AND VENTS
GENERAL COMMENTS
PURPOSE
SECTION 801 GENERAL
356 COMMENTARY FIGURE 801.18.1 APPLIANCE REPLACEMENTS AFFECTING EXISTING APPLIANCES
358 COMMENTARY FIGURE 801.21 BLOCKED VENT SWITCH FOR OIL-FIRED APPLIANCES
SECTION 802 VENTS
359 TABLE 802.2 VENT APPLICATION
360 COMMENTARY FIGURE 802.9 SIDEWALL VENT TERMINAL
361 SECTION 803 CONNECTORS
362 TABLE 803.9(1) MINIMUM CHIMNEY CONNECTOR THICKNESS FOR LOW-HEAT APPLIANCES
363 TABLE 803.9(2) MINIMUM CHIMNEY CONNECTOR THICKNESS FOR MEDIUM- AND HIGH-HEAT APPLIANCES
COMMENTARY FIGURE 803.10.3(1) CHIMNEY CONNECTOR INSTALLATION
364 COMMENTARY FIGURE 803.10.3(2) CHIMNEY CONNECTOR INSTALLATION WITH THIMBLE
365 TABLE 803.10.4 CHIMNEY CONNECTOR SYSTEMS AND CLEARANCES TO COMBUSTIBLE WALL MATERIALS FOR DOMESTIC HEATING APPLIANCES
TABLE 803.10.6 CONNECTOR CLEARANCES TO COMBUSTIBLES
SECTION 804 DIRECT-VENT, INTEGRAL VENT AND MECHANICAL DRAFT SYSTEMS
366 COMMENTARY FIGURE 803.10.4 CHIMNEY CONNECTOR SYSTEMS
367 COMMENTARY FIGURE 804.1 DIRECT VENT APPLIANCE
368 COMMENTARY FIGURE 804.3(1) TYPICAL EXHAUSTER APPLICATIONS
COMMENTARY FIGURE 804.3(2) TYPICAL POWER EXHAUSTER
COMMENTARY FIGURE 804.3(3) EXHAUSTER AND CONTROL PACKAGE
369 COMMENTARY FIGURE 804.3(4) DRAFT INDUCER
COMMENTARY FIGURE 804.3.1 DRAFT CONDITIONS WITH EQUIPMENT BURNER-INLET BLOWER
370 COMMENTARY FIGURE 804.3.2 SIMPLIFIED SAMPLE INTERLOCK CIRCUIT DIAGRAM FOR APPLIANCE SERVED BY POWER EXHAUSTER
371 COMMENTARY FIGURE 804.3.4(1) EXHAUSTER TERMINATIONS
372 COMMENTARY FIGURE 804.3.4(2) HORIZONTAL EXHAUSTER TERMINATION
COMMENTARY FIGURE 804.3.6 PROHIBITED APPLIANCE CONNECTION ON DISCHARGE SIDE OF POWER EXHAUSTER
373 SECTION 805 FACTORY-BUILT CHIMNEYS
COMMENTARY FIGURE 805.1(1) SAMPLE FACTORY-BUILT CHIMNEY LABELS
374 COMMENTARY FIGURE 805.1(1)—continued SAMPLE FACTORY-BUILT CHIMNEY LABELS
375 COMMENTARY FIGURE 805.1(2) FACTORY-BUILT CHIMNEY COMPONENTS
376 COMMENTARY FIGURE 805.1(3) LOW-HEAT CHIMNEY TERMINATION
COMMENTARY FIGURE 805.1(4) WIND EFFECT ON CHIMNEY TERMINATION
378 COMMENTARY FIGURE 805.4 CHIMNEY OFFSET LIMITATION
COMMENTARY FIGURE 805.7 DECORATIVE SHROUDS
379 SECTION 806 METAL CHIMNEYS
BIBLIOGRAPHY
380 CHAPTER 9: SPECIFIC APPLIANCES, FIREPLACES AND SOLID FUEL-BURNING EQUIPMENT
GENERAL COMMENTS
PURPOSE
SECTION 901 GENERAL
381 SECTION 902 MASONRY FIREPLACES
SECTION 903 FACTORY-BUILT FIREPLACES
382 COMMENTARY FIGURE 903.1(1) RECESSED WALL FACTORY-BUILT FIREPLACE
COMMENTARY FIGURE 903.1(2) FREESTANDING FACTORY-BUILT FIREPLACE
384 SECTION 904 PELLET FUEL-BURNING APPLIANCES
SECTION 905 FIREPLACE STOVES AND ROOM HEATERS
COMMENTARY FIGURE 905.1(1) TYPICAL ROOM HEATER
385 COMMENTARY FIGURE 905.1(3) WOOD-BURNING RESIDENTIAL HYDRONIC HEATER
386 COMMENTARY FIGURE 905.1(2) SAMPLE APPLIANCE LABEL
387 SECTION 906 FACTORY-BUILT BARBECUE APPLIANCES
SECTION 907 INCINERATORS AND CREMATORIES
SECTION 908 COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
389 SECTION 909 VENTED WALL FURNACES
SECTION 910 FLOOR FURNACES
390 SECTION 911 DUCT FURNACES
SECTION 912 INFRARED RADIANT HEATERS
SECTION 913 CLOTHES DRYERS
391 SECTION 914 SAUNA HEATERS
392 SECTION 915 ENGINE AND GAS TURBINE-POWERED EQUIPMENT AND APPLIANCES
SECTION 916 POOL AND SPA HEATERS
SECTION 917 COOKING APPLIANCES
393 SECTION 918 FORCED-AIR WARM-AIR FURNACES
SECTION 919 CONVERSION BURNERS
394 SECTION 920 UNIT HEATERS
SECTION 921 VENTED ROOM HEATERS
SECTION 922 KEROSENE AND OIL-FIRED STOVES
SECTION 923 SMALL CERAMIC KILNS
395 SECTION 924 STATIONARY FUEL CELL POWER SYSTEMS
COMMENTARY FIGURE 924.1(1) TYPICAL FUEL CELL COMPONENTS
396 COMMENTARY FIGURE 924.1(2) GENERIC FUEL CELL SYSTEM
SECTION 925 MASONRY HEATERS
SECTION 926 GASEOUS HYDROGEN SYSTEMS
SECTION 927 RADIANT HEATING SYSTEMS
397 SECTION 928 EVAPORATIVE COOLING EQUIPMENT
398 SECTION 929 UNVENTED ALCOHOL FUEL-BURNING DECORATIVE APPLIANCES
COMMENTARY FIGURE 929.1 UNVENTED ALCOHOL FUEL-BURNING DECORATIVE APPLIANCE
SECTION 930 LARGE-DIAMETER CEILING FANS
BIBLIOGRPAHY
399 COMMENTARY FIGURE 930.1 HIGH-VOLUME LARGE-DIAMETER FAN
400 CHAPTER 10: BOILERS, WATER HEATERS AND PRESSURE VESSELS
GENERAL COMMENTS
PURPOSE
SECTION 1001 GENERAL
401 SECTION 1002 WATER HEATERS
402 SECTION 1003 PRESSURE VESSELS
403 SECTION 1004 BOILERS
COMMENTARY FIGURE 1004.1 STEAM AND HOT WATER BOILER LABEL
405 TABLE 1004.3.1 BOILER TOP CLEARANCES
406 SECTION 1005 BOILER CONNECTIONS
COMMENTARY FIGURE1005.1(1) MULTIPLE INDEPENDENT HOT WATER BOILER INSTALLATION (STAGED OPERATION)
407 COMMENTARY FIGURE 1005.1(2) MULTIPLE MODULAR UNITS
COMMENTARY FIGURE 1005.2 TYPICAL REPLACEMENT (MAKEUP) WATER CONNECTIONS TO VARIOUS TYPES OF SYSTEMS
SECTION 1006 SAFETY AND PRESSURE RELIEF VALVES AND CONTROLS
408 COMMENTARY FIGURE 1006.1 SAFETY VALVE FOR STEAM APPLICATIONS
COMMENTARY FIGURE 1006.2 PRESSURE RELIEF VALVE FOR HOT WATER APPLICATIONS
411 COMMENTARY FIGURE 1006.7 COMPARISON OF FLAME DETECTION METHODS
413 SECTION 1007 BOILER LOW-WATER CUTOFF
414 COMMENTARY FIGURE 1007.1(1) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL WITH GAUGE GLASS AND TRI-COCKS FOR STEAM BOILER APPLICATION
COMMENTARY FIGURE 1007.1(2) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL FOR HOT WATER BOILER APPLICATION
COMMENTARY FIGURE 1007.1(3) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL FOR HOT WATER BOILER APPLICATION
SECTION 1008 BOTTOM BLOWOFF VALVE
415 COMMENTARY FIGURE 1007.2 SIMPLIFIED SAMPLE WIRING SCHEMATIC FOR BASIC GAS-FIRED BOILER
SECTION 1009 HOT WATER BOILER EXPANSION TANK
416 EQUATION 10-1
COMMENTARY FIGURE 1009.2(1) CLOSED-TYPE EXPANSION (COMPRESSION) TANK
COMMENTARY FIGURE 1009.2(2) CLOSED-DIAPHRAGM-TYPE EXPANSION TANK
417 TABLE 1009.2 CLOSED-TYPE EXPANSION TANK SIZING
COMMENTARY FIGURE 1009.3 OPEN-TYPE EXPANSION TANK
418 SECTION 1010 GAUGES
SECTION 1011 TESTS
419 COMMENTARY FIGURE 1010.2 STEAM BOILER SIGHT GLASS
BIBLIOGRAPHY
420 CHAPTER 11: REFRIGERATION
GENERAL COMMENTS
421 COMMENTARY FIGURE 11(1) OZONE DEPLETION PROCESS
PURPOSE
422 COMMENTARY FIGURE 11(2) COMPRESSION CYCLE
COMMENTARY FIGURE 11(3) REFRIGERATION SYSTEM EXAMPLE
423 SECTION 1101 GENERAL
TABLE 1101.2 FACTORY-BUILT EQUIPMENT AND APPLIANCES
425 SECTION 1102 SYSTEM REQUIREMENTS
426 COMMENTARY FIGURE 1101.9(1) INSTALLATION OF LOCKING CAPS FOR REFRIGERANT ACCESS PORT
COMMENTARY FIGURE 1101.9(2) REFRIGERANT LOCKING CAPS AND TOOLS
427 COMMENTARY FIGURE 1101.9(3) REFRIGERANT LABELS FOR LOCKING CAPS
COMMENTARY FIGURE 1101.9(4) SPECIAL REMOVAL TOOLS FOR REFRIGERANT LOCKING CAPS
429 SECTION 1103 REFRIGERATION SYSTEM CLASSIFICATION
430 COMMENTARY FIGURE 1103.1 CLASSIFICATION OF REFRIGERANTS
431 TABLE 1103.1 REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
432 TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
433 TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
434 TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
435 TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
436 TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
437 COMMENTARY FIGURE 1103.3.1 REFRIGERATION SYSTEM CLASSIFICATION
SECTION 1104 SYSTEM APPLICATION REQUIREMENTS
439 TABLE 1104.3.2 MAXIMUM PERMISSIBLE QUANTITIES OF REFRIGERANTS
441 COMMENTARY FIGURE 1104.4.2 VOLUME CALCULATION WITH ZONE DAMPERS
SECTION 1105 MACHINERY ROOM, GENERAL REQUIREMENTS
443 EQUATION 11-1
444 EQUATION 11-2
445 SECTION 1106 MACHINERY ROOM, SPECIAL REQUIREMENTS
446 COMMENTARY FIGURE 1105.9(1) MACHINERY ROOM MEANS OF EGRESS
COMMENTARY FIGURE 1105.9(2) MACHINERY ROOM EGRESS DOOR
447 TABLE 1106.4.2 MINIMUM EXHAUST RATES
448 SECTION 1107 PIPING MATERIAL
449 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
451 SECTION 1109 REFRIGERANT PIPE INSTALLATION
452 COMMENTARY FIGURE 1109.2.3 REFRIGERANT PIPING IS NOT PERMITTED IN AN INTERIOR EXIT STAIRWAY, AMONG OTHER SPECIFIED LOCATIONS
453 TABLE 1109.3.2 SHAFT VENTILATION VELOCITY
455 SECTION 1110 REFRIGERATION PIPING SYSTEM TEST
456 [F] SECTION 1111 PERIODIC TESTING
BIBLIOGRAPHY
458 CHAPTER 12: HYDRONIC PIPING
GENERAL COMMENTS
PURPOSE
SECTION 1201 GENERAL
459 SECTION 1202 MATERIAL
460 TABLE 1202.4 HYDRONIC PIPE
463 TABLE 1202.5 HYDRONIC PIPE FITTINGS
SECTION 1203 JOINTS AND CONNECTIONS
464 COMMENTARY FIGURE 1202.7(1) PACKED SLIP EXPANSION JOINT
COMMENTARY FIGURE 1202.7(2) FLEXIBLE BALL JOINT
COMMENTARY FIGURE 1202.7(3) METAL BELLOWS EXPANSION JOINT
COMMENTARY FIGURE 1202.7(4) RUBBER EXPANSION JOINT
COMMENTARY FIGURE 1202.7(5) FLEXIBLE HOSE
465 COMMENTARY FIGURE 1203.2 PREPARATION OF PIPE END
468 COMMENTARY FIGURE 1203.3.8.1(1) MECHANICALLY FORMED JOINT
COMMENTARY FIGURE 1203.3.8.1(2) MECHANICALLY FORMED JOINT—DIMPLE LOCATION
469 COMMENTARY FIGURE 1203.9.1 PLASTIC HEAT-FUSED JOINT
470 COMMENTARY FIGURE 1203.10.1 COMPRESSION-TYPE MECHANICAL JOINT
471 SECTION 1204 PIPE INSULATION
472 SECTION 1205 VALVES
COMMENTARY FIGURE 1205.1.1 HEAT EXCHANGERS
COMMENTARY FIGURE 1205.1.2 CENTRAL SYSTEMS
473 COMMENTARY FIGURE 1205.1.4 PRESSURE-REDUCING VALVES
COMMENTARY FIGURE 1205.1.6 EXPANSION TANKS
SECTION 1206 PIPING INSTALLATION
475 COMMENTARY FIGURE 1206.9(1) PIPE EXPANSION
476 COMMENTARY FIGURE 1206.9(2) “L” BEND
COMMENTARY FIGURE 1206.9(3) “Z” BEND
COMMENTARY FIGURE 1206.9(4) “U” BEND
477 SECTION 1207 TRANSFER FLUID
SECTION 1208 TESTS
SECTION 1209 EMBEDDED PIPING
478 SECTION 1210 PLASTIC PIPE GROUND-SOURCE HEAT PUMP LOOP SYSTEMS
479 TABLE 1210.4 GROUND-SOURCE LOOP PIPE
TABLE 1210.5 GROUND-SOURCE LOOP PIPE FITTINGS
482 BIBLIOGRAPHY
484 CHAPTER 13: FUEL OIL PIPING AND STORAGE
GENERAL COMMENTS
PURPOSE
SECTION 1301 GENERAL
485 COMMENTARY FIGURE 1301.5(1) TYPICAL OIL STORAGE TANK BASEMENT INSTALLATION
486 COMMENTARY FIGURE 1301.5(2) BASEMENT INSTALLATION WITH TANK REMOVED
SECTION 1302 MATERIAL
TABLE 1302.3 FUEL OIL PIPING AND FITTINGS
487 SECTION 1303 JOINTS AND CONNECTIONS
489 SECTION 1304 PIPING SUPPORT
SECTION 1305 FUEL OIL SYSTEM INSTALLATION
491 SECTION 1306 OIL GAUGING
SECTION 1307 FUEL OIL VALVES
492 SECTION 1308 TESTING
BIBLIOGRAPHY
494 CHAPTER 14: SOLAR THERMAL SYSTEMS
GENERAL COMMENTS
COMMENTARY FIGURE 14(1) PASSIVE SOLAR SPACE HEATING
COMMENTARY FIGURE 14(2) PASSIVE SOLAR HEATING AND COOLING APPLICATION
495 COMMENTARY FIGURE 14(3) ACTIVE SPACE AND DOMESTIC WATER HEATING SYSTEM
COMMENTARY FIGURE 14(4) PASSIVE COLLECTION WITH MECHANICAL DISTRIBUTION
PURPOSE
496 SECTION 1401 GENERAL
COMMENTARY FIGURE 1401.3(1) GOSSELIN RATINGS
497 COMMENTARY FIGURE 1401.3(2) HEAT TRANSFER FLUIDS (ESSENTIALLY NONTOXIC) GOSSELIN RATING OF 1
COMMENTARY FIGURE 1401.3(3) DOUBLE-WALL HEAT EXCHANGER
COMMENTARY FIGURE 1401.4 SOLAR THERMAL SYSTEMS SHALL BE LISTED AND LABELEDIN ACCORDANCE WITH ICC 900/SRCC 300
SECTION 1402 DESIGN AND INSTALLATION
498 COMMENTARY FIGURE 1401.4.1 SOLAR THERMAL COLLECTORS AND PANELS SHALL BE LISTED AND LABELED IN ACCORDANCE WITH ICC 901/SRCC 100
COMMENTARY FIGURE 1402.3 SIMPLIFIED SCHEMATIC OF SOLAR WATER HEATING SYSTEM
499 COMMENTARY FIGURE 1402.4 FLAT-PLATE SOLAR COLLECTORS
500 COMMENTARY FIGURE 1402.5.3 SIMPLIFIED SCHEMATIC OF DRAIN-BACK FREEZE PROTECTION SYSTEM
501 COMMENTARY FIGURE 1402.7.1 DOUBLE ENVELOPE PASSIVE SOLAR HEATING
503 SECTION 1403 HEAT TRANSFER FLUIDS
504 SECTION 1404 LABELING
505 BIBLIOGRAPHY
506 CHAPTER 15: REFERENCED STANDARDS
GENERAL COMMENTS
PURPOSE
507 COMMENTARY FIGURE 15 REFERENCED STANDARDS
508 ACCA
AHRI
AMCA
ANSI
ASHRAE
509 ASME
ASSE
510 ASSP
ASTM
514 AWS
AWWA
CPSC
CSA
515 DOL
FDA
FS
ICC
516 IIAR
MSS
NAIMA
NBBI
NFPA
517 NSF
SMACNA
518 UL
522 APPENDIX A: CHIMNEY CONNECTOR PASS-THROUGHS
SECTION A101 CHIMNEY CONNECTOR SYSTEMS
FIGURE A101.1(1) CHIMNEY CONNECTOR SYSTEMS
523 FIGURE A101.1(2) CHIMNEY CONNECTOR SYSTEMS
524 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
526 APPENDIX C: BOARD OF APPEALS
GENERAL COMMENTS
PURPOSE
[A] SECTION C101 GENERAL
530 INDEX
536 VALUABLE GUIDES TO CHANGES IN THE 2021 I-CODES®
537 ICC EVALUATION SERVICE
538 ICC ASSESSMENT CENTER
539 TELEWORK WITH ICC DIGITAL CODE PREMIUM

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