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New York City Mechanical Code, 2022
- 2022 NEW YORK CITY MECHANICAL CODE
- 2022 NEW YORK CITY MECHANICAL CODE TITLE PAGE
- COPYRIGHT
- DEDICATION
- NEW YORK CITY CONSTRUCTION CODES PREFACE
- ACKNOWLEDGEMENTS
- TITLE 28 OF THE NEW YORK CITY ADMINISTRATIVE CODE INCLUDING THE NEW YORK CITY CONSTRUCTION CODES
- TITLE 28 NEW YORK CITY CONSTRUCTION CODES
- TABLE OF CONTENTS
- CHAPTER 1 ADMINISTRATION [Go to Page]
- SECTION MC 101 GENERAL
- SECTION MC 102 APPLICABILITY
- SECTION MC 103 DEPARTMENT OF BUILDINGS
- SECTION MC 104 DUTIES AND POWERS OF THE COMMISSIONER OF BUILDINGS
- SECTION MC 105 APPROVALS
- SECTION MC 106 PERMITS
- SECTION MC 107 CONSTRUCTION DOCUMENTS
- SECTION MC 108 INSPECTIONS AND TESTING
- SECTION MC 109 VIOLATIONS
- CHAPTER 2 DEFINITIONS [Go to Page]
- SECTION MC 201 GENERAL
- SECTION MC 202 GENERAL DEFINITIONS
- CHAPTER 3 GENERAL REGULATIONS [Go to Page]
- SECTION MC 301 GENERAL
- SECTION MC 302 STRUCTURAL SAFETY
- SECTION MC 303 EQUIPMENT AND APPLIANCE LOCATION
- SECTION MC 304 INSTALLATION
- SECTION MC 305 PIPING SUPPORT [Go to Page]
- TABLE 305.4 PIPING SUPPORT SPACINGa
- SECTION MC 306 ACCESS AND SERVICE SPACE
- SECTION MC 307 CONDENSATE DISPOSAL [Go to Page]
- TABLE 307.2.2 CONDENSATE DRAIN SIZING
- SECTION MC 308 CLEARANCE REDUCTION [Go to Page]
- TABLE 308.4.2 CLEARANCE REDUCTION METHODSb
- SECTION MC 309 TEMPERATURE CONTROL
- SECTION MC 310 EXPLOSION CONTROL
- SECTION MC 311 SMOKE AND HEAT VENTS
- SECTION MC 312 HEATING AND COOLING LOAD CALCULATIONS
- SECTION MC 313 NOISE CONTROL AND VIBRATION ISOLATION REQUIREMENTS
- CHAPTER 4 VENTILATION [Go to Page]
- SECTION MC 401 GENERAL [Go to Page]
- TABLE 401.5 OPENING SIZES IN LOUVERS, GRILLES AND SCREENS PROTECTING OUTDOOR EXHAUST AND AIR INTAKE OPENINGS
- SECTION MC 402 NATURAL VENTILATION
- SECTION MC 403 MECHANICAL VENTILATION [Go to Page]
- TABLE 403.3.1.1 MINIMUM VENTILATION RATES [Go to Page]
- TABLE 403.3.1.1—continued 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—continued MINIMUM VENTILATION RATES
- 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
- TABLE 403.3.1.1.2.3.2 SYSTEM VENTILATION EFFICIENCY
- EQUATION 4-6
- EQUATION 4-7
- EQUATION 4-8
- EQUATION 4-9
- SECTION MC 404 ENCLOSED PARKING GARAGES
- SECTION MC 405 SYSTEMS CONTROL
- SECTION MC 406 VENTILATION OF UNINHABITED SPACES
- SECTION MC 407 AMBULATORY CARE FACILITIES AND GROUP I-2 OCCUPANCIES
- SECTION MC 408 VENTILATION OF NONPRODUCTION CHEMICAL LABORATORIES
- CHAPTER 5 EXHAUST SYSTEMS [Go to Page]
- SECTION MC 501 GENERAL
- SECTION MC 502 REQUIRED SYSTEMS [Go to Page]
- EQUATION 5-1
- SECTION MC 503 MOTORS AND FANS
- SECTION MC 504 CLOTHES DRYER EXHAUST [Go to Page]
- TABLE 504.8.4.1 DRYER EXHAUST DUCT FITTING EQUIVALENT LENGTH
- SECTION MC 505 DOMESTIC KITCHEN EXHAUST EQUIPMENT
- SECTION MC 506 COMMERCIAL KITCHEN HOOD VENTILATION SYSTEM DUCTS AND EXHAUST EQUIPMENT
- SECTION MC 507 COMMERCIAL KITCHEN HOODS [Go to Page]
- TABLE 507.2.8 MINIMUM DISTANCE BETWEEN THE LOWEST EDGE OF A GREASE FILTER AND THE COOKING SURFACE OR THE HEATING SURFACE
- SECTION MC 508 COMMERCIAL KITCHEN MAKEUP AIR
- SECTION MC 509 FIRE SUPPRESSION SYSTEMS
- SECTION MC 510 HAZARDOUS EXHAUST SYSTEMS [Go to Page]
- TABLE 510.9 MINIMUM DUCT THICKNESS
- TABLE 510.9.2 CLEARANCE TO COMBUSTIBLES
- SECTION MC 511 DUST, STOCK AND REFUSE CONVEYING SYSTEMS [Go to Page]
- TABLE 511.2 CONSTRUCTION, CLEARANCE AND TERMINATION REQUIREMENTS FOR SINGLE-WALL METAL DUST, STOCK AND REFUSE CONVEYING SYSTEMS
- SECTION MC 512 SUBSLAB SOIL EXHAUST SYSTEMS
- SECTION MC 513 SMOKE CONTROL SYSTEMS
- SECTION MC 514 ENERGY RECOVERY VENTILATION SYSTEMS
- SECTION MC 515 POSTFIRE SMOKE PURGE SYSTEMS
- CHAPTER 6 DUCT SYSTEMS [Go to Page]
- SECTION MC 601 GENERAL
- SECTION MC 602 PLENUMS
- SECTION MC 603 DUCT CONSTRUCTION AND INSTALLATION [Go to Page]
- TABLE 603.4 DUCT CONSTRUCTION MINIMUM SHEET METAL THICKNESS FOR SINGLE DWELLING UNITSa
- SECTION MC 604 INSULATION
- SECTION MC 605 AIR FILTERS
- SECTION MC 606 SMOKE DETECTION SYSTEMS CONTROL
- SECTION MC 607 DUCTS AND AIR TRANSFER OPENINGS [Go to Page]
- TABLE 607.3.2.1 FIRE DAMPER RATING
- SECTION MC 608 AIR OUTLETS AND AIR INLETS
- SECTION MC 609 SERVICE OPENINGS
- CHAPTER 7 COMBUSTION, VENTILATION, AND DILUTION AIR [Go to Page]
- SECTION MC 701 GENERAL
- SECTION MC 702 INSIDE AIR
- SECTION MC 703 OUTDOOR AIR
- SECTION MC 704 COMBINED USE OF INSIDE AND OUTDOOR AIR (CONDITION 1)
- SECTION MC 705 COMBINED USE OF INSIDE AND OUTDOOR AIR (CONDITION 2)
- SECTION MC 706 MECHANICAL COMBUSTION AIR SUPPLY
- SECTION MC 707 DIRECT CONNECTION
- SECTION MC 708 COMBUSTION AIR DUCTS
- SECTION MC 709 OPENING OBSTRUCTIONS
- SECTION MC 710 OPENING LOCATION AND PROTECTION
- CHAPTER 8 CHIMNEYS AND VENTS [Go to Page]
- SECTION MC 801 GENERAL [Go to Page]
- EQUATION 8-1
- TABLE 801.21 “F” FACTOR FOR DETERMINING CHIMNEY DISTANCES
- SECTION MC 802 VENTS [Go to Page]
- TABLE 802.2 VENT APPLICATION
- SECTION MC 803 CONNECTORS [Go to Page]
- TABLE 803.8 MINIMUM THICKNESS FOR GALVANIZED STEEL VENT CONNECTORS FOR LOW-HEAT APPLIANCES
- 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
- 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 MC 804 DIRECT-VENT, INTEGRAL VENT AND MECHANICAL DRAFT SYSTEMS
- SECTION MC 805 FACTORY-BUILT CHIMNEYS
- SECTION MC 806 METAL CHIMNEYS
- SECTION MC 807 CHANGES IN APPLIANCE FUELS
- SECTION MC 808 REDUCTION OF FLUE SIZE
- SECTION MC 809 CHIMNEY SUPPORTED FROM EQUIPMENT
- SECTION MC 810 TEST RUN AND SMOKE TEST
- SECTION MC 811 EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES AND TURBINES
- CHAPTER 9 SPECIFIC APPLIANCES AND EQUIPMENT [Go to Page]
- SECTION MC 901 GENERAL
- SECTION MC 902 MASONRY FIREPLACES
- SECTION MC 903 FACTORY-BUILT FIREPLACES
- SECTION MC 904 PELLET FUEL-BURNING APPLIANCES
- SECTION MC 905 FIREPLACE STOVES AND ROOM HEATERS
- SECTION MC 906 FACTORY-BUILT BARBECUE APPLIANCES
- SECTION MC 907 INCINERATORS AND CREMATORIES
- SECTION MC 908 COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
- SECTION MC 909 VENTED WALL FURNACES
- SECTION MC 910 FLOOR FURNACES
- SECTION MC 911 DUCT FURNACES AND HEATERS
- SECTION MC 912 INFRARED RADIANT HEATERS
- SECTION MC 913 CLOTHES DRYERS
- SECTION MC 914 SAUNA HEATERS
- SECTION MC 915 ENGINE AND GAS TURBINE-POWERED EQUIPMENT AND APPLIANCES
- SECTION MC 916 POOL AND SPA HEATERS
- SECTION MC 917 COOKING APPLIANCES
- SECTION MC 918 FORCED-AIR WARM-AIR FURNACES
- SECTION MC 919 CONVERSION BURNERS
- SECTION MC 920 UNIT HEATERS
- SECTION MC 921 VENTED ROOM HEATERS
- SECTION MC 922 KEROSENE AND OIL-FIRED STOVES
- SECTION MC 923 CERAMIC KILNS
- SECTION MC 924 STATIONARY FUEL CELL POWER PLANTS
- SECTION MC 925 MASONRY HEATERS
- SECTION MC 926 GASEOUS HYDROGEN SYSTEMS
- SECTION MC 927 ELECTRIC RADIANT HEATING SYSTEMS
- SECTION MC 928 EVAPORATIVE COOLERS
- CHAPTER 10 BOILERS, WATER HEATERS AND PRESSURE VESSELS [Go to Page]
- SECTION MC 1001 GENERAL
- SECTION MC 1002 WATER HEATERS
- SECTION MC 1003 PRESSURE VESSELS
- SECTION MC 1004 BOILERS [Go to Page]
- TABLE 1004.3.1 BOILER TOP CLEARANCES
- SECTION MC 1005 BOILER CONNECTIONS
- SECTION MC 1006 SAFETY AND PRESSURE RELIEF VALVES AND CONTROLS
- SECTION MC 1007 BOILER LOW-WATER CUTOFF
- SECTION MC 1008 BOILER BLOWOFF/BLOWDOWN VALVES
- SECTION MC 1009 HOT WATER BOILER EXPANSION TANK [Go to Page]
- EQUATION 10-1
- TABLE 1009.2 CLOSED-TYPE EXPANSION TANK SIZING
- SECTION MC 1010 GAUGES
- SECTION MC 1011 TESTS
- SECTION MC 1012 MAXIMUM TEMPERATURE
- CHAPTER 11 REFRIGERATION [Go to Page]
- SECTION MC 1101 GENERAL
- SECTION MC 1102 SYSTEM REQUIREMENTS
- SECTION MC 1103 REFRIGERATION SYSTEM CLASSIFICATION [Go to Page]
- TABLE 1103.1 REFRIGERANT DATA AND SAFETY CLASSIFICATIONSa [Go to Page]
- TABLE 1103.1—continued REFRIGERANT DATA AND SAFETY CLASSIFICATIONSa
- TABLE 1103.1—continued REFRIGERANT DATA AND SAFETY CLASSIFICATIONSa
- TABLE 1103.1—continued REFRIGERANT DATA AND SAFETY CLASSIFICATIONSa
- TABLE 1103.1—continued REFRIGERANT DATA AND SAFETY CLASSIFICATIONSa
- SECTION MC 1104 SYSTEM APPLICATION REQUIREMENTS [Go to Page]
- TABLE 1104.3.1 SPECIAL QUANTITY LIMITS FOR SEALED AMMONIA/WATER ABSORPTION AND SELF-CONTAINED SYSTEMS
- SECTION MC 1105 MACHINERY ROOM, GENERAL REQUIREMENTS [Go to Page]
- EQUATION 11-1
- EQUATION 11-2
- SECTION MC 1106 MACHINERY ROOM, SPECIAL REQUIREMENTS
- SECTION MC 1107 REFRIGERANT PIPING
- SECTION MC 1108 FIELD TEST
- SECTION MC 1109 PERIODIC TESTING
- CHAPTER 12 HYDRONIC PIPING [Go to Page]
- SECTION MC 1201 GENERAL
- SECTION MC 1202 MATERIAL [Go to Page]
- TABLE 1202.4 HYDRONIC PIPE [Go to Page]
- TABLE 1202.4 HYDRONIC PIPE—continued
- TABLE 1202.5 HYDRONIC PIPE FITTINGS
- SECTION MC 1203 JOINTS AND CONNECTIONS
- SECTION MC 1204 PIPE INSULATION
- SECTION MC 1205 VALVES
- SECTION MC 1206 PIPING INSTALLATION
- SECTION MC 1207 TRANSFER FLUID
- SECTION MC 1208 TESTS
- SECTION MC 1209 EMBEDDED PIPING
- SECTION MC 1210 PLASTIC PIPE GROUND-SOURCE HEAT PUMP LOOP SYSTEMS [Go to Page]
- TABLE 1210.4 GROUND-SOURCE LOOP PIPE
- TABLE 1210.5 GROUND-SOURCE LOOP PIPE FITTINGS
- SECTION MC 1211 HIGH-PRESSURE STEAM AND HIGH TEMPERATURE HOT WATER PIPING SYSTEMS
- CHAPTER 13 FUEL-OIL PIPING AND STORAGE [Go to Page]
- SECTION MC 1301 GENERAL
- SECTION MC 1302 MATERIAL [Go to Page]
- TABLE 1302.3 FUEL-OIL PIPING
- TABLE 1302.5 PIPE FITTINGS
- SECTION MC 1303 JOINTS AND CONNECTIONS
- SECTION MC 1304 PIPING SUPPORT
- SECTION MC 1305 FUEL-OIL SYSTEM INSTALLATION [Go to Page]
- TABLE 1305.7(1) VENT PIPING FOR UNDERGROUND TANKS
- TABLE 1305.7(2) NORMAL VENT PIPING FOR TANKS INSTALLED INSIDE BUILDINGS
- EQUATION 13-1
- EQUATION 13-2
- SECTION MC 1306 OIL GAUGING
- SECTION MC 1307 FUEL-OIL VALVES
- SECTION MC 1308 TESTING
- CHAPTER 14 SOLAR SYSTEMS [Go to Page]
- SECTION MC 1401 GENERAL
- SECTION MC 1402 INSTALLATION
- SECTION MC 1403 HEAT TRANSFER FLUIDS
- SECTION MC 1404 MATERIALS
- CHAPTER 15 REFERENCED STANDARDS [Go to Page]
- SECTION MC 1501 GENERAL
- SECTION MC 1502 STANDARDS [Go to Page]
- ACCA
- AHRI
- AMCA
- ANSI
- ASHRAE
- ASME
- ASNT
- ASSE
- ASTM
- AWS
- AWWA
- BSI
- CAN/ULC
- CSA
- DOL
- EN
- IIAR
- MSS
- NAIMA
- NBBI
- NFPA
- NSF
- SMACNA
- UL
- APPENDIX A CHIMNEY CONNECTOR PASS-THROUGHS [Go to Page]
- FIGURE A-1 CHIMNEY CONNECTOR SYSTEMS [Go to Page]
- FIGURE A-1—continued CHIMNEY CONNECTOR SYSTEMS
- APPENDIX B RESERVED
- APPENDIX C FUEL OIL STORAGE TANK VENTING OPTIONS [Go to Page]
- SECTION MC C101 GENERAL [Go to Page]
- FIGURE C101.1(1) PRIMARY TANK: UL 80, ASME BPVC, OR NYC ALTERNATE TANK DAY TANK: UL 80, ASME BPVC, OR NYC ALTERNATE TANK
- FIGURE C101.1(2) PRIMARY TANK: UL 142 OR DUAL LABEL TANK DAY TANK: UL 142 OR DUAL LABEL TANK
- FIGURE C101.1(3) PRIMARY TANK: UL 80, ASME BPVC, OR NYC ALTERNATE TANK DAY TANK: UL 142 OR DUAL LABEL TANK
- INDEX RESERVED
- ICC DIGITAL CODES PREMIUM
- ICC ASSESSMENT CENTER
- ICC LEARNING CENTER
- ICC EVALUATION SERVICE [Go to Page]