Skip to code content (skip section selection)
Compare to:
Chicago Overview
Prior Chicago Building Code
BUILDING CODE AND RELATED EXCERPTS OF THE MUNICIPAL CODE OF CHICAGO
DIVISION 1 - ADMINISTRATION
DIVISION 2 - DEFINITIONS
DIVISION 3 - USE AND OCCUPANCY CLASSIFICATIONS
DIVISION 4 - SPECIAL DETAILED REQUIREMENTS BASED ON USE AND OCCUPANCY
DIVISION 5 - GENERAL BUILDING HEIGHTS AND AREAS
DIVISION 6 - TYPES OF CONSTRUCTION
DIVISION 7 - FIRE-RESISTANCE-RATED CONSTRUCTION
DIVISION 8 - INTERIOR FINISHES (NA)
DIVISION 9 - FIRE PROTECTION SYSTEMS
DIVISION 10 - MEANS OF EGRESS
DIVISION 11 - ACCESSIBILITY
DIVISION 12 - INTERIOR ENVIRONMENT
DIVISION 13 - ENERGY EFFICIENCY AND ENVIRONMENTAL PROTECTION
DIVISION 14 - EXTERIOR WALLS (NA)
DIVISION 15 - ROOF ASSEMBLIES AND ROOFTOP STRUCTURES (NA)
DIVISION 16 - STRUCTURAL DESIGN
DIVISION 17 - STRUCTURAL TESTS AND SPECIAL INSPECTIONS
DIVISION 18 - SOILS AND FOUNDATIONS
DIVISION 19 - CONCRETE
DIVISION 20 - ALUMINUM (NA)
DIVISION 21 - MASONRY
DIVISION 22 - STEEL
DIVISION 23 - WOOD
DIVISION 24 - GLASS AND GLAZING (NA)
DIVISION 25 - GYPSUM BOARD AND PLASTER (NA)
DIVISION 26 - PLASTIC (NA)
DIVISION 27 - ELECTRICAL
DIVISION 28 - MECHANICAL SYSTEMS
CHAPTER 18-28 MECHANICAL SYSTEMS*
Article I. Administration (18-28-101 et seq.)
Article II. Definitions (18-28-201 et seq.)
Article III. General Regulations (18-28-301 et seq.)
18-28-301 General.
18-28-301.1 Scope.
18-28-301.2 Energy utilization.
18-28-301.3 Listed and labeled.
18-28-301.4 Deliberately omitted.
18-28-301.5 Label information.
18-28-301.6 Conflicts.
18-28-301.7 Electrical.
18-28-301.8 Plumbing connections.
18-28-301.9 Fuel types.
18-28-301.10 Vibration isolation.
18-28-301.11 Repair.
18-28-301.12 Wind resistance.
18-28-301.13 Flood hazard.
18-28-301.14 Deliberately omitted.
18-28-302 Protection of Structure.
18-28-302.1 Penetrations of floor/ceiling assemblies and fire-resistance-rated assemblies.
18-28-303 Equipment and Appliance Location.
18-28-303.1 General.
18-28-303.2 Hazardous locations.
18-28-304 Deliberately omitted.
18-28-305 Piping Support.
18-28-305.1 General.
18-28-305.2 Materials.
18-28-305.3 Structural attachment.
18-28-305.4 Interval of support.
18-28-305.5 Sway bracing.
18-28-306 Access and Service Space.
18-28-306.1 Refer to Article.
18-28-306.2 Deliberately omitted.
18-28-306.3 Deliberately omitted.
18-28-306.4 Deliberately omitted.
18-28-306.5 Equipment and appliances on roofs or elevated structures.
18-28-306.6 Sloped roofs.
18-28-307 Condensate Disposal.
18-28-307.1 Fuel-burning appliances.
18-28-307.2 Evaporators and cooling coils.
18-28-307.2.1 Condensate disposal.
18-28-307.2.1.1 French drain.
18-28-307.2.2 Drain pipe materials and sizes.
18-28-307.2.3 Auxiliary drain pans.
18-28-307.2.4 Secondary drain system.
18-28-307.2.5 Traps.
18-28-308 Clearance Reduction.
18-28-308.1 Scope.
18-28-308.2 Listed appliances and equipment.
18-28-308.3 Protective assembly construction and installation.
18-28-308.4 Allowable reduction.
18-28-308.5 Labeled assemblies.
18-28-308.6 Reduction table.
18-28-308.7 Solid fuel-burning appliances.
18-28-308.8 Masonry chimneys.
18-28-308.9 Chimney connector pass-throughs.
18-28-308.10 Masonry fireplaces.
18-28-308.11 Kitchen exhaust ducts.
18-28-309 Deliberately omitted.
18-28-310 Deliberately omitted.
18-28-311 Deliberately omitted.
18-28-312 Deliberately omitted.
Article IV. Ventilation (18-28-401 et seq.)
Article V. Exhaust Systems (18-28-501 et seq.)
Article VI. Duct Systems (18-28-601 et seq.)
Article VII. Combustion Air (18-28-701 et seq.)
Article VIII. Chimneys and Vents (18-28-801 et seq.)
Article IX. Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment (18-28-901 et seq.)
Article X. Boilers, Water Heaters and Pressure Vessels (18-28-1001 et seq.)
Article XI. Refrigeration (18-28-1101 et seq.)
Article XII. Hydronic Piping (18-28-1200 et seq.)
Article XIII. Fuel Oil Piping and Storage (18-28-1301 et seq.)
Article XIV. Fuel-Gas Piping (18-28-1401 et seq.)
Article XV. Solar Systems (18-28-1501 et seq.)
DIVISION 29 - PLUMBING SYSTEMS
DIVISION 30 - ELEVATORS AND CONVEYING SYSTEMS
DIVISION 31 - SPECIAL CONSTRUCTION (NA)
DIVISION 32 - ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
DIVISION 33 - SAFEGUARDS DURING CONSTRUCTION
DIVISION 34 - EXISTING STRUCTURES
DIVISION 35 - REFERENCED STANDARDS

You are viewing an archived code

Loading...
18-28-306.6  Sloped roofs.
   If any appliance or equipment is installed on a roof having a slope of 3 units vertical in 12 units horizontal (25-percent slope) or greater and having an edge more than 30 inches (762 mm) above grade at such edge, a level platform shall be provided on each side of the appliance to which access is required in accordance with the manufacturer's installation instructions for service, repair or maintenance.
18-28-307  Condensate Disposal.
18-28-307.1  Fuel-burning appliances.
   The liquid combustion by-products of condensing appliances shall be collected and discharged in accordance with Section 18-28-801, Plumbing. Condensate piping shall be of Type M copper or Schedule 40 PVC and shall not be smaller than the drain connection on the appliance. Such piping shall maintain a minimum horizontal slope in the direction of discharge of not less than one-eighth unit vertical in 12 units horizontal (1 percent slope).
18-28-307.2  Evaporators and cooling coils.
   Condensate drain systems shall be provided for all equipment and appliances containing evaporators or cooling coils. Condensate drain systems shall be designed, constructed and installed in accordance with Sections 18-28-307.2.1 through 18-28-307.2.5.
18-28-307.2.1  Condensate disposal.
   Condensate from all cooling coils or evaporators shall be conveyed by gravity, vacuum or pumped from the drain pan outlet to an approved place of disposal as follows:
   1.   Units larger than 6 tons (21.1 kW) nominal capacity shall discharge to a sanitary sewer drain, storm sewer drain or a French drain constructed in accordance with Section 18-28-307.2.1.1. If condensate is discharged to a sanitary sewer, such drains shall be indirectly connected in accordance with the Chapter 18-29 of the Plumbing Code.
   2.   Units 6 tons (21.1 kW) and smaller nominal capacity shall discharge in accordance with Item 1, or shall discharge to a gutter, roof drain or other approved location.
   3.   Condensate drains from rooftop units shall discharge in accordance with Item 1 or 2, or shall discharge onto rooftops constructed to prevent the condensate from discharging into a street, alley or other areas so as to cause a nuisance.
   4.   Condensate may be pumped or conveyed by vacuum as long as no other systems are connected to the condensate removal system.
18-28-307.2.1.1  French drain.
   A french drain shall consist of a pit excavated in the earth not less than 24 inches (610 mm) in any dimension and completely filled with coarse gravel. The drainpipe shall extend into the pit not less than 6 inches (152 mm) below grade and shall be securely anchored in place. The drain shall not be covered with sod until inspected and approved.
18-28-307.2.2  Drain pipe materials and sizes.
   All components of the condensate disposal system shall be made of cast iron, galvanized steel, copper, polybutylene, polyethylene, ABS, CPVC or PVC pipe or tubing. All components shall be selected for the pressure and temperature rating of the installation. Condensate waste and drain line size shall be not less than 3/4-inch (19 mm) internal diameter and shall not decrease in size from the drain pan connection to the place of condensate disposal. If the drainpipes for more than one unit are manifolded together for condensate drainage, the pipe or tubing shall be sized in accordance with an approved method. All horizontal sections of drain piping shall be installed in uniform alignment at a uniform slope.
Loading...