2015 INTERNATIONAL MECHANICAL CODE AND COMMENTARY
2015 IMC® CODE AND COMMENTARY TITLE PAGE
COPYRIGHT
PREFACE
TABLE OF CONTENTS
CHAPTER 1: SCOPE AND ADMINISTRATION
GENERAL COMMENTS
PURPOSE
PART 1–SCOPE AND APPLICATION
SECTION 101 GENERAL
SECTION 102 APPLICABILITY
PART 2–ADMINISTRATION AND ENFORCEMENT
SECTION 103 DEPARTMENT OF MECHANICAL INSPECTION
SECTION 104 DUTIES AND POWERS OF THE CODE OFFICIAL
SECTION 105 APPROVAL
SECTION 106 PERMITS
SECTION 107 INSPECTIONS AND TESTING
SECTION 108 VIOLATIONS
SECTION 109 MEANS OF APPEAL
SECTION 110 TEMPORARY EQUIPMENT, SYSTEMS AND USES
BIBLIOGRAPHY
CHAPTER 2: DEFINITIONS
GENERAL COMMENTS
PURPOSE
SECTION 201 GENERAL
SECTION 202 GENERAL DEFINITIONS
FIGURE 202(1) BREATHING ZONE
FIGURE 202(2) COMMERCIAL KITCHEN HOODS
FIGURE 202(3) THERMAL RESISTANCE
BIBLIOGRAPHY
CHAPTER 3: GENERAL REGULATIONS
GENERAL COMMENTS
PURPOSE
SECTION 301 GENERAL
FIGURE 301.9 TYPICAL LABEL FOR A CATEGORY I GAS-FIRED FURNACE
SECTION 302 PROTECTION OF STRUCTURE
FIGURE 302.3.1 HOLES AND NOTCHES IN WOOD JOISTS
FIGURE 302.3.2 NOTCHES IN WOOD STUDS
FIGURE 302.3.3 BORED HOLES
SECTION 303 EQUIPMENT AND APPLIANCE LOCATION
SECTION 304 INSTALLATION
FIGURE 304.1 EXCERPTS FROM TYPICAL MANUFACTURER’S INSTALLATION MANUALS(Courtesy of Trane and American-Standard Company)
FIGURE 304.1—continued EXCERPTS FROM TYPICAL MANUFACTURER’S INSTALLATION MANUALS(Courtesy of Trane and American-Standard Company)
FIGURE 304.3 OIL-FIRED WATER HEATER INSTALLATION IN A HAZARDOUS LOCATION
FIGURE 304.5.1.1 NATURAL VENTILATION OF SPACES CONTAINING HYDROGEN-GENERATING APPLIANCES
FIGURE 304.6(1) APPLIANCE INSTALLATION IN A PUBLIC GARAGE
FIGURE 304.6(2) APPLIANCE PROTECTION AGAINST MOTOR VEHICLE IMPACT
FIGURE 304.7 SUSPENDED APPLIANCE IN RESIDENTIAL GARAGE
FIGURE 304.11(1) GUARD REQUIREMENTS
FIGURE 304.11(2) FALL ARREST/RESTRAINT DEVICE
SECTION 305 PIPING SUPPORT
FIGURE 305.4 POINT OF SAG BETWEEN HANGERS
TABLE 305.4 PIPING SUPPORT SPACINGa
FIGURE 305.5 PIPE PROTECTION
SECTION 306 ACCESS AND SERVICE SPACE
FIGURE 306.3 REMOTE LOCATION REQUIREMENTS (ATTIC INSTALLATION)
FIGURE 306.5(1) ACCESS HEIGHT ABOVE GRADE
FIGURE 306.5(2) APPLIANCE ACCESS
FIGURE 306.5.1 APPLIANCES AND EQUIPMENT ON SLOPED ROOFS
SECTION 307 CONDENSATE DISPOSAL
TABLE 307.2.2 CONDENSATE DRAIN SIZING
FIGURE307.2.3(1) PRIMARY AND AUXILIARYDRAIN PAN FLOAT SWITCH (Courtesy of SMD Research, Inc.)
FIGURE 307.2.3(2) CONDENSATE OVERFLOW SWITCH (Courtesy of SMD Research, Inc.)
FIGURE 307.2.3(3) IN-LINE CONDENSATE OVERFLOW SWITCH (Courtesy of SMD Research, Inc.)
FIGURE 307.2.3.2 APPLIANCES, EQUIPMENT AND INSULATION IN PANS
FIGURE 307.2.5 DRAIN LINE ACCESS MEANS
FIGURE 307.3 CONDENSATE PUMP
SECTION 308 CLEARANCE REDUCTION
FIGURE 308.1(1) CLEARANCE TO COMBUSTIBLES—EXAMPLES OF HOW TO MEASURE
FIGURE 308.1(2) REDUCED CLEARANCE FOR 31/2-INCH BRICK WALL
FIGURE 308.1(3) VENTILATED MASONRY CLEARANCE REDUCTION SYSTEM
FIGURE 308.2 TYPICAL CLEARANCES FOR A RADIANT-TYPE WOOD-BURNING STOVE
FIGURE 308.3 REDUCED CLEARANCE TO COMBUSTIBLES
TABLE 308.4.2 CLEARANCE REDUCTION METHODSb
FIGURE 308.4.2(1) REDUCED CLEARANCE TO COMBUSTIBLES
FIGURE 308.4.2(2) CLEARANCE TO COMBUSTIBLES
FIGURE 308.4.2(3) CLEARANCE TO COMBUSTIBLES
FIGURE 308.4.2(4) CLEARANCE TO COMBUSTIBLES
SECTION 309 TEMPERATURE CONTROL
SECTION 310 EXPLOSION CONTROL
SECTION 311 SMOKE AND HEAT VENTS
SECTION 312 HEATING AND COOLING LOAD CALCULATIONS
BIBLIOGRAPHY
CHAPTER 4:VENTILATION
GENERAL COMMENTS
PURPOSE
SECTION 401 GENERAL
TABLE 401.5 OPENING SIZES IN LOUVERS, GRILLES AND SCREENS PROTECTING AIR INTAKE OPENINGS
FIGURE 401.4(1) INTAKE OPENING
FIGURE 401.4(2) INTAKE OPENING
SECTION 402 NATURAL VENTILATION
FIGURE 402.2 NATURAL LIGHT AND VENTILATION WINDOWS
FIGURE 402.3 NATURAL VENTILATION FROM ADJOINING SPACE
FIGURE 402.4 VENTILATION OPENINGS BELOW GRADE
SECTION 403 MECHANICAL VENTILATION
FIGURE 403.1(1) AN ENERGY-CONSERVING ALTERNATIVE TO NATURAL VENTILATION
FIGURE 403.1(2) TYPICAL HVAC SYSTEM
FIGURE 403.3.1.1 OCCUPIED ZONE
FIGURE 403.3.1.1(2) MANICURE EXHAUST TABLE
FIGURE 403.3.1.1(1) NAIL SALON STATIONS
EQUATION 4-1
TABLE 403.3.1.1 MINIMUM VENTILATION RATES
TABLE 403.3.1.1—continued MINIMUM VENTILATION RATES
TABLE 403.3.1.1—continued MINIMUM VENTILATION RATES
TABLE 403.3.1.1.1.2 ZONE AIR DISTRIBUTION EFFECTIVENESS
TABLE 403.3.1.1—continued MINIMUM VENTILATION RATES
EQUATION 4-2
EQUATION 4-3
EQUATION 4-4
EQUATION 4-5
TABLE 403.3.1.1.2.3.2 SYSTEM VENTILATION EFFICIENCY
EQUATION 4-6
EQUATION 4-7
EQUATION 4-8
EQUATION 4-9
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
BIBLIOGRAPHY
CHAPTER 5: EXHAUST SYSTEMS
GENERAL COMMENTS
PURPOSE
SECTION 501 GENERAL
FIGURE 501.3.1(1) SEPARATION REQUIREMENTS FOR ROOF EXHAUST (EXPLOSIVE OR FLAMMABLE) DUCT TERMINATIONS
FIGURE 501.3.1(2) SEPARATION REQUIREMENTS FOR ROOF EXHAUST (EXPLOSIVE OR FLAMMABLE) DUCT TERMINATIONS
SECTION 502 REQUIRED SYSTEMS
EQUATION 5-1
FIGURE 502.14(1) OVERHEAD SOURCE CAPTURE SYSTEM
FIGURE 502.14(2) WALL-MOUNTED SOURCE CAPTURE SYSTEM
SECTION 503 MOTORS AND FANS
FIGURE 502.20(1) PEDICURE STATION
FIGURE 502.20(2) MANICURE STATION
SECTION 504 CLOTHES DRYER EXHAUST
FIGURE 504.2 NONCOMBUSTIBLE WALL RECEPTACLE FOR CLOTHES DRYER EXHAUST DUCT
FIGURE 504.5 DRYER EXHAUST DUCT POWER VENTILATOR
FIGURE 504.7 DRYER EXHAUST DUCT PROTECTION
FIGURE 504.8.2 DRYER EXHAUST DUCT INSTALLATION
TABLE 504.8.4.1 DRYER EXHAUST DUCT FITTING EQUIVALENT LENGTH
FIGURE 504.8.4.1 CLOTHES DRYER EXHAUST DUCT LENGTH
FIGURE 504.8.5 EXAMPLE OF PERMANENT LABEL OF EQUIVALENT LENGTH
FIGURE 504.8.6 DOMESTIC CLOTHES DRYER ROUGH-IN
FIGURE 504.9 MULTIPLE DRYER EXHAUST SYSTEM
SECTION 505 DOMESTIC KITCHEN EXHAUST EQUIPMENT
SECTION 506 COMMERCIAL KITCHEN HOOD VENTILATION SYSTEM DUCTS AND EXHAUST EQUIPMENT
FIGURE 506.3.1.1(1) TYPICAL FACTORY-BUILT GREASE DUCT LABEL (Photo courtesy of Selkirk, L.L.C.)
FIGURE 506.3.1.1(2) FACTORY-BUILT GREASE DUCTS (Photo courtesy of Selkirk, L.L.C.)
FIGURE 506.3.1.2(1) PROHIBITED INSTALLATION OF FLEXIBLE AIR DUCT CONNECTING TO A MAKEUP AIR PLENUM ABOVE A TYPE I HOOD
FIGURE 506.3.1.2(2) BACKWALL MAKEUP AIR PLENUM
FIGURE 506.3.2.1(1) TYPES OF DUCT JOINTS
FIGURE 506.3.2.1(2) WELDED FLANGE JOINT (Photo courtesy of Guy McMann)
FIGURE 506.3.2.2 DUCT-TO-HOOD JOINTS
FIGURE 506.3.6 PROHIBITED INSTALLATION OF A GREASE DUCT (Less than 18-inch clearance to combustibles)
FIGURE 506.3.7 PREVENTION OF GREASE ACCUMULATION
FIGURE 506.3.7.1(1) GREASE COLLECTION RESERVOIR (Notice that there is no cleanout) (Photo courtesy of Guy McMann)
FIGURE 506.3.7.1(2) GREASE RESERVOIR
FIGURE 506.3.8(1) GREASE DUCT CLEANOUT
FIGURE 506.3.8(2) GREASE DUCT CLEANOUT
FIGURE 506.3.10 UNDERGROUND GREASE DUCT
FIGURE 506.3.11 TERMINATION THROUGH EXTERIOR WALLS
FIGURE 506.3.11.1(1) EXHAUST DUCT ENCLOSED BY A VERTICAL SHAFT
FIGURE 506.3.11.1(2) EXHAUST DUCT PENETRATING A WALL
FIGURE 506.3.11.2(1) FIELD-APPLIED GREASE DUCT ENCLOSURE (Photo courtesy of Guy McMann)
FIGURE 506.3.11.2(2) PARTIAL APPLICATION OF FIELD-APPLIED GREASE DUCT ENCLOSURE (PROHIBITED) (Photo courtesy of Guy McMann)
FIGURE 506.5.1(1) ROOF-MOUNTED EXHAUST FAN FOR A TYPE I HOOD (Notice that the duct does not extend 18 inches above the roof surface)
FIGURE 506.5.1(2) INLINE EXHAUST FAN FOR A TYPE I HOOD
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
FIGURE 506.5.3(1) KITCHEN EXHAUST FAN MOUNTED 18 INCHES ABOVE THE ROOF SURFACE WITH VENTS FOR THE SHAFT (Photo courtesy of Guy McMann)
FIGURE 506.5.3(2) RESTRAINT CABLE FOR HINGED UP-BLAST EXHAUST FAN (Photo courtesy of Guy McMann)
FIGURE 506.5.5 EXHAUST OUTLET TERMINATION
SECTION 507 COMMERCIAL KITCHEN HOODS
FIGURE 507.1(1) TYPICAL LABEL FOR A TYPE I HOOD
FIGURE 507.1(2) ELECTRIC DEEP FAT FRYER WITH RECIRCULATING HOOD
FIGURE 507.1(3) ELECTRIC GRIDDLE WITH RECIRCULATING HOOD
FIGURE 507.1(4) HIBACHI TABLE WITH INTEGRAL DOWN-DRAFT EXHAUST SYSTEM (Photo courtesy of Roaster Tech, Inc.)
FIGURE 507.1(5) DOWN-DRAFT EXHAUST SYSTEM (Figure courtesy of Roaster Tech, Inc.)
FIGURE 507.1.1 COMMERCIAL KITCHEN EXHAUST HOOD SYSTEMS SHALL OPERATE DURING THE COOKING OPERATION
FIGURE 507.1.1.1 SENSORS FOR AUTOMATIC OPERATION MUST BE LOCATED IN EACH HOOD SERVED BY A COMMON EXHAUST SYSTEM
FIGURE 507.1.3 WATER HEATER NEXT TO A TYPE I HOOD (Photo courtesy of Guy McMann)
FIGURE 507.2.7GREASE DUCT ENCLOSURE SYSTEM USED ON THE TOP OF A TYPE I HOOD (Prohibited)
TABLE 507.2.8 MINIMUM DISTANCE BETWEEN THE LOWEST EDGE OF A GREASE FILTER AND THE COOKING SURFACE OR THE HEATING SURFACE
FIGURE 507.2.8 APPLIANCE VENTING UNDERNEATH A TYPE I HOOD
FIGURE 507.2.8.2(1) MINIMUM ANGLE OF GREASE FILTERS
FIGURE 507.2.8.2(2)GREASE FILTER MOUNTED AT MINIMUM ANGLE OF 45 DEGREES (Photo courtesy of Guy McMann)
FIGURE 507.2.9 GREASE GUTTER WITH RESERVOIR
FIGURE 507.3 TYPE II HOOD ABOVE A DISHWASHER (Photo courtesy of Guy McMann)
FIGURE 507.4.1(1) CANOPY HOOD—ELEVATION
FIGURE 507.4.1(2) WALL-TYPE CANOPY HOOD
FIGURE 507.4.1(3) WALL-TYPE CANOPY HOOD WITH MAKEUP AIR
FIGURE 507.4.1(4) ISLAND-TYPE CANOPY HOOD
FIGURE 507.4.1(5) BACK-TO-BACK (DOUBLE ISLAND)-TYPE CANOPY HOOD
FIGURE 507.4.1(6) CANOPY HOOD WITH SIDE PANELS—SIDE VIEW
FIGURE 507.4.1(7) CANOPY HOOD WITH SIDE PANELS—ELEVATION
FIGURE 507.4.2 NONCANOPY-TYPE HOOD (LOW-WALL OR BACKSHELF)
FIGURE 507.5(1) CANOPY HOOD SERVING MULTIPLE APPLIANCES
FIGURE 507.5(2) BACKSHELF/PASS-OVER HOOD
FIGURE 507.5(3) BACKSHELF HOOD WITH ONE SIDE PANEL
FIGURE 507.5.1 HOOD APPLIANCE PLAN VIEW
SECTION 508 COMMERCIAL KITCHEN MAKEUP AIR
FIGURE 508.1(1) MAKEUP AIR
FIGURE 508.1(2) MAKEUP AIR
FIGURE 508.1(3) MAKEUP AIR SUPPLIED FROM FACE OF HOOD
FIGURE 508.1(4) MAKEUP AIR SUPPLIED TO HOOD (Short-circuit hood)
FIGURE 508.1.2 OUTDOOR AIR BALANCE REQUIRED (Photo courtesy of Thinkstock)
SECTION 509 FIRE SUPPRESSION SYSTEMS
FIGURE 509.1 SUPPRESSION SYSTEM FOR COMMERCIAL-TYPE COOKING EQUIPMENT
SECTION 510 HAZARDOUS EXHAUST SYSTEMS
FIGURE 510.5 MANIFOLDED HAZARDOUS EXHAUST DUCTS
TABLE 510.9 MINIMUM DUCT THICKNESS
FIGURE 510.9.1 DUCT JOINTS
TABLE 510.9.2 CLEARANCE TO COMBUSTIBLES
SECTION 511 DUST, STOCK AND REFUSE CONVEYING SYSTEMS
SECTION 512 SUBSLAB SOIL EXHAUST SYSTEMS
TABLE 511.2 CONSTRUCTION, CLEARANCE AND TERMINATION REQUIREMENTS FOR SINGLE-WALL METAL CHIMNEYS
SECTION 513 SMOKE CONTROL SYSTEMS
FIGURE 513.4.1 STACK EFFECT
EQUATION 5-1
FIGURE 513.8(1) SMOKE LAYER INTERFACE
FIGURE 513.8(2) AXISYMMETRICAL PLUME
FIGURE 513.8(3) BALCONY SPILL PLUME
FIGURE 513.8(4) WINDOW PLUME
FIGURE 513.8(5) PLUGHOLING
FIGURE 513.8.1(1) EXAMPLE, CRITICAL LEVEL OF SMOKE
FIGURE 513.8.1(2) SMOKE LAYER
EQUATION 5-2
SECTION 514 ENERGY RECOVERY VENTILATION SYSTEMS
BIBLIOGRAPHY
CHAPTER 6: DUCT SYSTEMS
GENERAL COMMENTS
PURPOSE
SECTION 601 GENERAL
FIGURE 601.2(1) POSITIVE PRESSURE IN CORRIDOR PROVIDES MAKEUP AIR FOR SMALL EXHAUST FANS IN ADJACENT ROOMS
FIGURE 601.2(2) ELEVATION VIEW FOR COMMENTARY FIGURE 601.2(1)
FIGURE 601.2.1(1) CORRIDOR NOT FIRE-RESISTANCE RATED: SPACE ABOVE CEILING CAN BE USED AS A PLENUM
FIGURE 601.2.1(2) SPACE ABOVE CEILING PROHIBITED FROM BEING USED AS A PLENUM
FIGURE 601.2.1(3) FIRE-RESISTANCE-RATED CEILING IN CORRIDOR: SPACE ABOVE CEILING CAN BE USED AS A PLENUM
FIGURE 601.2.1(4) FIRE-RESISTANCE-RATED CORRIDOR WITH SUSPENDED NONRATED CEILING (Allowed if smoke detectors or sprinkler water flow detectors shut down the air handler)
FIGURE 601.2.1(5) SPACE ABOVE CEILING CAN BE USED AS A PLENUM IF PART OF AN ENGINEERED SMOKE CONTROL SYSTEM
SECTION 602 PLENUMS
FIGURE 602.1(1) TYPICAL FLOOR/CEILING OR ROOF/CEILING RETURN AIR PLENUM
FIGURE 602.1(2) MECHANICAL ROOM USED AS RETURN AIR PLENUM
FIGURE 602.1(3) MULTIPLE FIRE AREAS
FIGURE 602.1(4) PROHIBITED RETURN AIR PLENUM APPLICATION
FIGURE 602.2 PLENUM ENCLOSURE CONSTRUCTION
FIGURE 602.2.1.5 DISCRETE PRODUCTS
FIGURE 602.3(1) ACCEPTABLE STUD AND JOIST SPACE PLENUM INSTALLATION
FIGURE 602.3(2) PROHIBITED STUD AND JOIST SPACE PLENUM INSTALLATION
SECTION 603 DUCT CONSTRUCTION AND INSTALLATION
TABLE 603.4 DUCT CONSTRUCTION MINIMUM SHEET METAL THICKNESS FOR SINGLE DWELLING UNITSa
FIGURE 603.6(1) FLEXIBLE CONNECTOR
FIGURE 603.6(2) SAMPLE LABELS
FIGURE 603.6(3) SAMPLE LABELS
FIGURE 603.6 TESTING OF FLEXIBLE AIR DUCTS AND CONNECTORS
FIGURE 603.6(4) INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
FIGURE 603.6(4)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
FIGURE 603.6(4)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
FIGURE 603.6(4)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
FIGURE 603.6(4)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
FIGURE 603.6(4)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
FIGURE 603.6(4)—continued INSTALLATION INSTRUCTIONS FOR FLEXIBLE AIR DUCTS AND AIR CONNECTORS
FIGURE 603.7 FURNACE DUCTS IN PRIVATE GARAGE
FIGURE 603.9 TYPICAL HVAC METAL DUCT JOINTS REQUIRING SEALING
FIGURE 603.17(1) AIR DISPERSION SYSTEM
FIGURE 603.17(2) AIR DISPERSION SYSTEM
SECTION 604 INSULATION
FIGURE 604.3 DUCT COVERINGS AND LININGS
SECTION 605 AIR FILTERS
SECTION 606 SMOKE DETECTION SYSTEMS CONTROL
FIGURE 606.2(1) AIR DISTRIBUTION SYSTEM SERVING NOT MORE THAN ONE SPACE
FIGURE 606.2(2) AIR DISTRIBUTION SYSTEM SERVING MORE THAN ONE SPACE
FIGURE 606.2.1 SMOKE DETECTOR REQUIRED IN RETURN AIR SYSTEMS WITH FLOW GREATER THAN 2000 CFM
FIGURE 606.2.2(1) LOCATION OF SMOKE DETECTORS IN COMMON RETURN AIR PLENUM
FIGURE 606.2.2(2) LOCATION OF SMOKE DETECTOR, EXCEPTION ITEM 1
FIGURE 606.2.2(3) TYPICAL FAN-POWERED TERMINAL UNIT
FIGURE 606.2.3 RETURN RISER
SECTION 607 DUCT AND TRANSFER OPENINGS
FIGURE 607.1(1) FIRE DAMPER
FIGURE 607.1(2) SMOKE DAMPER
FIGURE 607.1(3) COMBINATION FIRE/SMOKE DAMPER
FIGURE 607.1(4) CEILING DAMPERS
FIGURE 607.1(5) FIRE DAMPER IN WALL FRAME
FIGURE 607.1.1 HORIZONTAL DUCT BETWEEN TWO SHAFTS
FIGURE 607.3 DYNAMIC RATED FIRE DAMPERS
TABLE 607.3.2.1 FIRE DAMPER RATING
FIGURE 607.3.3.2(1) LOCATION OF SMOKE DETECTORS IN DUCTS NEAR SMOKE/FIRE DAMPERS
FIGURE 607.3.3.2(2) LOCATION OF SMOKE DETECTORS NEAR SMOKE/FIRE DAMPERS IN AIR TRANSFER OPENING
FIGURE 607.5 FIRE DAMPERS IN RATED WALL
FIGURE 607.5.2 EXCEPTION 3: FIRE DAMPERS NOT REQUIRED WHERE DUCT IS 26-GAGE METAL AND CONTINUOUS
FIGURE 607.5.3(1) FIRE DAMPERS NOT REQUIRED—EXCEPTION 1
FIGURE 607.5.3(2) FIRE DAMPERS NOT REQUIRED—EXCEPTION 3
FIGURE 607.5.5(1) ACCEPTABLE METHOD OF SUBDUCTING
FIGURE 607.5.5(2) PROHIBITED METHOD OF SUBDUCTING
FIGURE 607.5.5.1(1) VERTICAL SHAFT—BOTTOM ENCLOSURE
FIGURE 607.5.5.1(2) VERTICAL SHAFTS—BOTTOM ENCLOSURES ROOM
FIGURE 607.5.5.1(3) VERTICAL SHAFTS—BOTTOM ENCLOSURES WITH DRAFTSTOPPING
FIGURE 607.5.5.1(4) VERTICAL SHAFTS—BOTTOM ENCLOSURES WITH FIRE SPRINKLERS
FIGURE 607.5.5.1(5) VERTICAL SHAFTS—BOTTOM ENCLOSURES
FIGURE 607.5.7(1) SMOKE DAMPER REQUIRED IN AIR TRANSFER OPENING IN A SMOKE PARTITION
FIGURE 607.5.7(2) SMOKE DAMPER NOT REQUIRED WHERE AIR TRANSFER OPENING IS DUCTED
FIGURE 607.5.7(3) SMOKE DAMPER NOT REQUIRED WHERE AIR TRANSFER OPENING IS DUCTED
FIGURE 607.6.1(1) AIR DUCT PENETRATION OF A FIRE-RESISTANCE-RATED FLOOR/CEILING ASSEMBLY
FIGURE 607.6.1(2) EXCEPTION: FIRE DAMPERS NOT REQUIRED AT EVERY FLOOR
FIGURE 607.6.3(1) DUCT PENETRATION OF NONFIRE-RESISTANCE-RATED ASSEMBLIES
FIGURE 607.6.3(2) FIRE DAMPERS IN DUCTS PENETRATING NONFIRE-RESISTANCE-RATED ASSEMBLIES
BIBLIOGRAPHY
CHAPTER 7: COMBUSTION AIR
GENERAL COMMENTS
PURPOSE
SECTION 701 GENERAL
FIGURE 701.2 SIMPLIFIED EXAMPLE SCHEMATIC OF COMBUSTION AIR DAMPER/APPLIANCE INTERLOCK
CHAPTER 8: CHIMNEYS AND VENTS
GENERAL COMMENTS
PURPOSE
SECTION 801 GENERAL
FIGURE 801.18.1 APPLIANCE REPLACEMENTS AFFECTING EXISTING APPLIANCES
SECTION 802 VENTS
TABLE 802.2 VENT APPLICATION
FIGURE 802.9 SIDEWALL VENT TERMINAL
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
FIGURE 803.10.3(1) CHIMNEY CONNECTOR INSTALLATION
FIGURE 803.10.3(2) CHIMNEY CONNECTOR INSTALLATION WITH THIMBLE
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
FIGURE 803.10.4 CHIMNEY CONNECTOR SYSTEMS
SECTION 804 DIRECT-VENT, INTEGRAL VENT AND MECHANICAL DRAFT SYSTEMS
FIGURE 804.1 DIRECT VENT APPLIANCE
FIGURE 804.3(1) TYPICAL EXHAUSTER APPLICATIONS
FIGURE 804.3(2) TYPICAL POWER EXHAUSTER
FIGURE 804.3(3) EXHAUSTER AND CONTROL PACKAGE
FIGURE 804.3(4) DRAFT INDUCER
FIGURE 804.3.1 DRAFT CONDITIONS WITH EQUIPMENT BURNER-INLET BLOWER
FIGURE 804.3.2 SIMPLIFIED SAMPLE INTERLOCK CIRCUIT DIAGRAM FOR APPLIANCE SERVED BY POWER EXHAUSTER
FIGURE 804.3.4(1) EXHAUSTER TERMINATIONS
FIGURE 804.3.4(2) HORIZONTAL EXHAUSTER TERMINATION
FIGURE 804.3.6 PROHIBITED APPLIANCE CONNECTION ON DISCHARGE SIDE OF POWER EXHAUSTER
SECTION 805 FACTORY-BUILT CHIMNEYS
FIGURE 805.1(1) SAMPLE FACTORY-BUILT CHIMNEY LABELS
FIGURE 805.1(1)—continued SAMPLE FACTORY-BUILT CHIMNEY LABELS
FIGURE 805.1(2) FACTORY-BUILT CHIMNEY COMPONENTS
FIGURE 805.1(3) LOW-HEAT CHIMNEY TERMINATION
FIGURE 805.1(4) WIND EFFECT ON CHIMNEY TERMINATION
FIGURE 805.3 CHIMNEY OFFSET LIMITATION
FIGURE 805.7 DECORATIVE SHROUDS
SECTION 806 METAL CHIMNEYS
BIBLIOGRAPHY
CHAPTER 9: SPECIFIC APPLIANCES, FIREPLACES AND SOLID FUEL-BURNING EQUIPMENT
GENERAL COMMENTS
PURPOSE
SECTION 901 GENERAL
SECTION 902 MASONRY FIREPLACES
SECTION 903 FACTORY-BUILT FIREPLACES
FIGURE 903.1(1) RECESSED WALL FACTORY-BUILT FIREPLACE
FIGURE 903.1(2) FREE-STANDING FACTORY-BUILT FIREPLACE
SECTION 904 PELLET FUEL-BURNING APPLIANCES
SECTION 905 FIREPLACE STOVES AND ROOM HEATERS
FIGURE 905.1(1) TYPICAL ROOM HEATER
SECTION 906 FACTORY-BUILT BARBECUE APPLIANCES
SECTION 907 INCINERATORS AND CREMATORIES
FIGURE 905.1(2) SAMPLE APPLIANCE LABEL
SECTION 908 COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
SECTION 909 VENTED WALL FURNACES
SECTION 910 FLOOR FURNACES
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
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
SECTION 924 STATIONARY FUEL CELL POWER SYSTEMS
FIGURE 924.1(1) TYPICAL FUEL CELL COMPONENTS
FIGURE 924.1(2) GENERIC FUEL CELL SYSTEM
SECTION 925 MASONRY HEATERS
SECTION 926 GASEOUS HYDROGEN SYSTEMS
SECTION 927 RADIANT HEATING SYSTEMS
SECTION 928 EVAPORATIVE COOLING EQUIPMENT
CHAPTER 10: BOILERS, WATER HEATERS AND PRESSURE VESSELS
GENERAL COMMENTS
PURPOSE
SECTION 1001 GENERAL
SECTION 1002 WATER HEATERS
SECTION 1003 PRESSURE VESSELS
SECTION 1004 BOILERS
FIGURE 1004.1 STEAM AND HOT WATER BOILER LABEL
TABLE 1004.3.1 BOILER TOP CLEARANCES
SECTION 1005 BOILER CONNECTIONS
FIGURE 1005.1(1) MULTIPLE INDEPENDENT HOT WATER BOILER INSTALLATION (STAGED OPERATION)
FIGURE 1005.1(2) MULTIPLE MODULAR UNITS
SECTION 1006 SAFETY AND PRESSURE RELIEF VALVES AND CONTROLS
FIGURE 1005.2 TYPICAL REPLACEMENT (MAKEUP) WATER CONNECTIONS TO VARIOUS TYPES OF SYSTEMS
FIGURE 1006.1 SAFETY VALVE FOR STEAM APPLICATIONS
FIGURE 1006.2 PRESSURE RELIEF VALVE FORHOT WATER APPLICATIONS
FIGURE 1006.7 COMPARISON OF FLAME DETECTION METHODS
SECTION 1007 BOILER LOW-WATER CUTOFF
FIGURE 1007.1(1) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL WITH GAUGE GLASS AND TRI-COCKS FOR STEAM BOILER APPLICATION
FIGURE 1007.1(2) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL FOR HOT WATER BOILER APPLICATION
FIGURE 1007.1(3) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL FOR HOT WATER BOILER APPLICATION
FIGURE 1007.2 SIMPLIFIED SAMPLE WIRING SCHEMATIC FOR BASIC GAS-FIRED BOILER
SECTION 1008 BOTTOM BLOWOFF VALVE
SECTION 1009 HOT WATER BOILER EXPANSION TANK
EQUATION 10-1
FIGURE 1009.2(1) CLOSED-TYPE EXPANSION (COMPRESSION) TANK
FIGURE 1009.2(2) CLOSED-DIAPHRAGM-TYPE EXPANSION TANK
TABLE 1009.2 CLOSED-TYPE EXPANSION TANK SIZING
FIGURE 1009.3 OPEN-TYPE EXPANSION TANK
SECTION 1010 GAUGES
FIGURE 1010.2 STEAM BOILER SIGHT GLASS
SECTION 1011 TESTS
BIBLIOGRAPHY
CHAPTER 11: REFRIGERATION
GENERAL COMMENTS
PURPOSE
FIGURE 11(1) OZONE DEPLETION PROCESS
FIGURE 11(2) COMPRESSION CYCLE
FIGURE 11(3) REFRIGERATION SYSTEM EXAMPLE
SECTION 1101 GENERAL
FIGURE 1101.10(1) INSTALLATION OF LOCKING CAPS FOR REFRIGERANT ACCESS PORT
FIGURE 1101.10(2) REFRIGERANT LOCKING CAPS AND TOOLS
FIGURE 1101.10(3) REFRIGERANT LABELS FOR LOCKING CAPS
FIGURE 1101.10(4) SPECIAL REMOVAL TOOLS FOR REFRIGERANT LOCKING CAPS
SECTION 1102 SYSTEM REQUIREMENTS
SECTION 1103 REFRIGERATION SYSTEM CLASSIFICATION
FIGURE 1103.1 CLASSIFICATION OF REFRIGERANTS
TABLE 1103.1 REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
TABLE 1103.1—continued REFRIGERANT CLASSIFICATION, AMOUNT AND OEL
FIGURE 1103.3.1 REFRIGERATION SYSTEM CLASSIFICATION
SECTION 1104 SYSTEM APPLICATION REQUIREMENTS
TABLE 1104.3.2 MAXIMUM PERMISSIBLE QUANTITIES OF REFRIGERANTS
FIGURE 1104.4.2 VOLUME CALCULATION WITH ZONE DAMPERS
SECTION 1105 MACHINERY ROOM, GENERAL REQUIREMENTS
EQUATION 11-1
EQUATION 11-2
SECTION 1106 MACHINERY ROOM, SPECIAL REQUIREMENTS
SECTION 1107 REFRIGERANT PIPING
SECTION 1108 FIELD TEST
SECTION 1109 PERIODIC TESTING
CHAPTER 12: HYDRONIC PIPING
GENERAL COMMENTS
PURPOSE
SECTION 1201 GENERAL
SECTION 1202 MATERIAL
TABLE 1202.4 HYDRONIC PIPE
TABLE 1202.4—continued HYDRONIC PIPE
TABLE 1202.5 HYDRONIC PIPE FITTINGS
FIGURE 1202.7(1) PACKED SLIP EXPANSION JOINT
FIGURE 1202.7(2) FLEXIBLE BALL JOINT
FIGURE 1202.7(3) METAL BELLOWS EXPANSION JOINT
FIGURE 1202.7(4) RUBBER EXPANSION JOINT
FIGURE 1202.7(5) FLEXIBLE HOSE
SECTION 1203 JOINTS AND CONNECTIONS
FIGURE 1203.2 PREPARATION OF PIPE END
FIGURE 1203.3.8.1(1) MECHANICALLY FORMED JOINT
FIGURE 1203.3.8.1(2) MECHANICALLY FORMED JOINT—DIMPLE LOCATION
FIGURE 1203.10.1 PLASTIC HEAT-FUSED JOINT
FIGURE 1203.11.1 COMPRESSION-TYPE MECHANICAL JOINT
SECTION 1204 PIPE INSULATION
SECTION 1205 VALVES
FIGURE 1205.1.1 HEAT EXCHANGERS
FIGURE 1205.1.2 CENTRAL SYSTEMS
FIGURE 1205.1.4 PRESSURE-REDUCING VALVES
FIGURE 1205.1.6 EXPANSION TANKS
SECTION 1206 PIPING INSTALLATION
FIGURE
1206.9(1) PIPE EXPANSION
FIGURE 1206.9(2) “L” BEND
FIGURE 1206.9(3) “Z” BEND
FIGURE 1206.9(4) “U” BEND
SECTION 1207 TRANSFER FLUID
SECTION 1208 TESTS
SECTION 1209 EMBEDDED PIPING
SECTION 1210 PLASTIC PIPE GROUND-SOURCE HEAT PUMP LOOP SYSTEMS
TABLE 1210.4 GROUND-SOURCE LOOP PIPE
TABLE 1210.5 GROUND-SOURCE LOOP PIPE FITTINGS
BIBLIOGRAPHY
CHAPTER 13: FUEL OIL PIPING AND STORAGE
GENERAL COMMENTS
PURPOSE
SECTION 1301 GENERAL
SECTION 1302 MATERIAL
TABLE 1302.3 FUEL OIL PIPING
FIGURE 1301.5(1) TYPICAL OIL STORAGE TANK BASEMENT INSTALLATION
FIGURE 1301.5(2)BASEMENT INSTALLATION WITH TANK REMOVED
SECTION 1303 JOINTS AND CONNECTIONS
SECTION 1304 PIPING SUPPORT
SECTION 1305 FUEL OIL SYSTEM INSTALLATION
SECTION 1306 OIL GAUGING
SECTION 1307 FUEL OIL VALVES
SECTION 1308 TESTING
BIBLIOGRAPHY
CHAPTER 14: SOLAR SYSTEMS
GENERAL COMMENTS
FIGURE 14(1) PASSIVE SOLAR SPACE HEATING
FIGURE 14(2) PASSIVE SOLAR HEATING AND COOLING APPLICATION
PURPOSE
FIGURE 14(3) ACTIVE SPACE AND DOMESTIC WATER HEATING SYSTEM
FIGURE 14(4) PASSIVE COLLECTION WITH MECHANICAL DISTRIBUTION
SECTION 1401 GENERAL
FIGURE 1401.3(1) GOSSELIN RATINGS
FIGURE 1401.3(2) HEAT TRANSFER FLUIDS (ESSENTIALLY NONTOXIC) GOSSELIN RATING OF 1
FIGURE 1401.3 DOUBLE-WALL HEAT EXCHANGER
SECTION 1402 INSTALLATION
FIGURE 1402.3 DOUBLE ENVELOPE PASSIVE SOLAR HEATING
FIGURE 1402.4 FLAT-PLATE SOLAR COLLECTORS
FIGURE 1402.5.1 SIMPLIFIED SCHEMATIC OF SOLAR WATER HEATING SYSTEM
FIGURE 1402.5.3 SIMPLIFIED SCHEMATIC OF DRAINDOWN FREEZE PROTECTION SYSTEM
SECTION 1403 HEAT TRANSFER FLUIDS
SECTION 1404 MATERIALS
BIBLIOGRAPHY
CHAPTER 15: REFERENCE STANDARDS
GENERAL COMMENTS
PURPOSE
FIGURE 15 REFERENCED STANDARDS
ACCA
AHRI
AMCA
ANSI
ASHRAE
ASME
ASSE
ASSE
ASTM
AWS
AWWA
CSA
DOL
FS
ICC
IIAR
MSS
NAIMA
NBBI
NFPA
NSF
SMACNA
UL
APPENDIX A: CHIMNEY CONNECTOR PASS-THROUGH
FIGURE A-1 CHIMNEY CONNECTOR SYSTEMS
FIGURE A-1—continued CHIMNEY CONNECTOR SYSTEMS
APPENDIX B: RECOMMENDED PERMIT FEE SCHEDULE
B101 MECHANICAL WORK, OTHER THAN GAS PIPING SYSTEMS
B102 FEE FOR REINSPECTION
B103 TEMPORARY OPERATION INSPECTION FEE
B104 SELF-CONTAINED UNITS LESS THAN 2 TONS
INDEX
VALUABLE GUIDES TO CHANGES IN THE 2015 I-CODES®
ICC EVALUATION SERVICE
ICC TRAINING AND EDUCATION
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