2004 Florida Building Code, MechanicalEnergy

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2004 Florida Building Code, Mechanical/Energy

• Technical Core Update
• (4 hours)June 2004

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2004 Florida Building Code

• Mechanical

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Florida Building Code, Mechanical

• 2001 Unified Florida Building Code
• Used 1998 edition of International Building Code
  (IBC), Mechanical as the base code
• Made Florida-specific
• 2004 Florida Building Code, Mechanical
• Uses 2003 edition of IBC as base
• Changes made to 2003 IBC
• Florida-specific changes

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Florida Building Code, Mechanical

• Chapter 1 Administration
• Defers to Florida Building Code, Building Chapter
  1 Administration
• Chapter 2 Definitions
• Added definitions (commercial cooking
  recirculating systems / appliances / hoods,
  others)

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Florida Building Code, MechanicalChapter 3
General Regulations

• 301.14 Floodplain management construction
  standards.
• Defers to the authority granted to local
  government by Title 44 CFR, Sections 59 and 60
• Does not supercede local ordinances

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Florida Building Code, MechanicalChapter 3
General Regulations

• 302 PROTECTION OF STRUCTURE
• 302.3 Cutting, notching and boring in wood
  framing.
• 302.3.4 Engineered wood products.
• Notches, cuts and holes are generally prohibited.
  
• 302.4 Alterations to trusses.
• 304 INSTALLATION
• 304.4 Hydrogen generating and refueling
  operations. (Hydrogen appliances/refueling)

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Florida Building Code, MechanicalChapter 3
General Regulations

• 305 PIPING SUPPORT
• 305.5 Protection against physical damage.
• In concealed locations where piping is installed
  through holes or notches in studs, joists,
  rafters or similar members less than 1.5 inches
  from the nearest edge of the member, the pipe
  shall be protected by shield plates.
• Protective shield plates shall be a minimum of
  .062-inch-thick steel, shall cover the area of
  the pipe where the member is notched or bored,
  and shall extend a minimum of 2 inches above sole
  plates and below top plates

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Florida Building Code, MechanicalChapter 3
General Regulations

• 306 ACCESS AND SERVICE SPACE
• 306.3.2 from Chapter 13610.1.ABC.3.5.2
  Air-handling units.
• Specific requirements for air handler in attic
  and homeowners notice added here

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Florida Building Code, MechanicalChapter 3
General Regulations

• 306.5 Equipment and appliances on roofs or
  elevated structures.
• Permanent ladders installed to provide the
  required access has been added.
• Ladders shall comply with the 7 minimum design
  criteria.

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Florida Building Code, MechanicalChapter 3
General Regulations

• 307 CONDENSATION DISPOSAL
• 307.2.2 Drain pipe materials and sizes.
• Added Exception
• Exception On wall mounted ductless split units
  less than 36,001 Btu/h where the drain line is
  less than 10 feet in length the factory drain
  outlet size shall be acceptable from the
  equipment to the place of disposal.

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Florida Building Code, MechanicalChapter 3
General Regulations

• 312 HEATING AND COOLING LOAD CALCULATIONS
• 312.1 Load calculations.
• Heating and cooling system design loads for the
  purpose of sizing systems, appliances and
  equipment shall be determined in accordance with
  the requirements of Chapter 13 of the Florida
  Building Code, Building
• Commercial Section 13-407.1.ABC.1
• Residential Section 13-607.1.ABC.1

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Florida Building Code, MechanicalChapter 4
Ventilation

• 402 NATURAL VENTILATION
• 402.3 Adjoining spaces.
• 402.3.1 Bath rooms.
• Rooms containing bath tubs, showers, spas and
  similar bathing fixtures shall be mechanically
  ventilated in accordance with Section 403.
• Exception Residential bathrooms with windows
  having no less than 3 square feet of open space.
• 402.4 Openings below grade.
• Added measurement criteria

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Florida Building Code, Mechanical Chapter 4
Ventilation

• 403 MECHANICAL VENTILATION
• 403.3 Ventilation rate.
• Other than Group R-3 (one- and two-family
  dwellings), ventilation systems shall comply with
  Table 403.3, "Required Outdoor Ventilation Air"
• 403.6 Smoke Control Provisions have been moved to
  Section 513 Smoke Control Systems

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Florida Building Code, Mechanical Chapter 4
Ventilation

• 406 VENTILATION OF UNINHABITED SPACES
• 406.1 Ventilation of uninhabited spaces.
• This section has been deleted.

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Florida Building Code, Mechanical Chapter 4
Ventilation

• 407 RETURN AIR INTAKE
• 407.1 It shall be prohibited to place a return
  air intake in the following locations public
  bathrooms, and non-dedicated kitchen HVAC
  systems.

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 501 General
• 501.3 Pressure equalization.
• See Section 601.4 of this code and Section 13-409
  of the Florida Building Code, Building
• 502 REQUIRED PROTECTION
• 502.5 Valve-regulated lead-acid batteries.
• Added requirements/limits
• See notes

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 502.7 Application of flammable finishes.
• 502.8 Hazardous materialsgeneral requirements.
  (expanded)
• 502.9 Hazardous materialsrequirements for
  specific materials.
• 502.10 Hazardous production materials.
• 502.12 Organic coating processes.
• 502.15 and 502.16 Repair garages.

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 504 CLOTHES DRYER EXHAUST
• 504.2 Exhaust penetrations.
• Added Fire dampers, combination fire/smoke
  dampers and any similar devices that will
  obstruct the exhaust flow, shall be prohibited in
  clothes dryer exhaust ducts

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 504.6 Domestic clothes dryer ducts.
• Added Exception
• Booster fan in accordance with manufacturers
  installation instructions
• Exception also found in Florida Building Code,
  Residential Chapter 15 Exhaust Systems.

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 505 DOMESTIC KITCHEN EXHAUST EQUIPMENT
• 505.1 Domestic Systems.
• Added Exception (not new International Code
  Council ICC, new Florida Building Code)
• 2. Ducts for domestic kitchen cooking appliances
  equipped with downdraft exhaust systems shall
  be permitted to be constructed of Schedule 40
  PVC pipe provided that the installation complies
  with all of the following (see notes)

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 506 COMMERCIAL KITCHEN HOOD VENTILATION SYSTEM
  DUCTS AND EXHAUST EQUIPMENT
• 506.3 Ducts serving Type I hoods.
• 506.3.1.2 Makeup air ducts.
• Make up air ducts connecting to or within 18
  inches of a Type I hood shall be constructed and
  in stalled in accordance with Sections 603.1,
  603.3, 603.4, 603.9, 603.10 and 603.12. Duct
  insulation installed within 18 inches of a Type I
  hood shall be noncombustible or shall be listed
  for the application.

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 506.3.6 Grease duct clearances.
• Shall have a clearance to noncombustible
  construction and gypsum wallboard attached to
  noncombustible structures of not less than 3
  inches

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 506.3.12 Exhaust outlets serving Type I.
• 506.3.12.1 Termination above the roof.
• Exhaust outlets that terminate above the roof
  shall have the discharge opening located not less
  than 40 inches above the roof surface
• 506.3.12.2 Termination through an exterior wall.
• 3-foot separation

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 506.3.14.3 Termination location Exception 2 (see
  notes). Removed
• 506.5 Exhaust equipment. (Added)
• Fan discharge
• Fan mounting
• Clearances factory-built Exceptions

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 506.5.5 Termination location.
• In accordance with Section 506.3.12.3
• Exception 2' provided not higher than the top of
  fan discharge opening
• 507 COMMERCIAL KITCHEN HOODS
• 507.1 General.
• Adds Exception 2 and 3.
• Factory-built recirculating systems
• Automatic operation where engineered or
  multi-speed controls

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 507.13 Capacity of hoods.
• 507.13.1 Extra-heavy-duty cooking appliances.
• 507.13.2 Heavy-duty cooking appliances.
• 507.13.3 Medium-duty cooking appliances.
• 507.13.4 Light-duty cooking appliances.

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 507.16 Performance test.
• 507.16.1 Capture and containment test. Shall
  verify capture and containment performance of the
  exhaust system.
• 508 COMMERCIAL KITCHEN MAKEUP AIR
• 508.1 Makeup air temperature. This section has
  been deleted.
• 510 HAZARDOUS EXHAUST SYSTEMS
• 510.2.1 Lumber yards and woodworking facilities.
• 510.2.2 Combustible fibers.

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Florida Building Code, Mechanical Chapter 5
Exhaust Systems

• 510.6.4 Fire dampers. Removed.
• 510.7 Suppression required.
• Added Exception in ducts where the largest
  cross-sectional diameter of the duct is less than
  10 inches.

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 601 GENERAL
• 601.4 Balanced return air.
• Three Exceptions.

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 602 PLENUMS
• 602.2.1 Materials exposed within plenums.
• Added Exception 5 Combustible materials
  enclosed in approved gypsum board assemblies or
  enclosed in materials listed and labeled for such
  application.

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 602.2.1.1 Wiring.
• NFPA 262 replaces UL 910
• NFPA 70 referenced by Florida Building Code,
  Building, Chapter 27 Electrical

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 602.2.1.4 Combustible electrical equipment.
• Exposed within a plenum shall be tested in
  accordance with UL 2043 for peak rate of heat
  release, peak optical density and average optical
  densityand is listed and labeled

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 602.2.1.5 Foam plastic insulation.
• 75 or less and a smoke-developed index of 450 or
  less
• 602.2.1.5.1 Separation required.
• 602.2.1.5.3 Covering.
• The foam plastic insulation shall be covered by
  corrosion-resistant steel having a base metal
  thickness of not less than 0.0160 inch.

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 603 DUCT CONSTRUCTION AND INSTALLATION
• 603.1.3 Space provided.
• Adds Exception Retrofit or replacement units not
  part of a renovation are exempt from the minimum
  clearance requirement.
• 603.2 Duct sizing.
• ACCA manual D (single dwelling)
• ASHRAE Handbook of Fundamentals (all others)
• Equivalent computation procedure

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 603.4.2 Fibrous Glass Duct, Rigid.
• 603.4.2.2 Mechanical fastening.
• Attachments of ductwork to air-handling equipment
  shall be by mechanical fasteners. Where access is
  limited, two fasteners on one side shall be
  acceptable when installed in accordance with
  Section M603.1.6

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 603.16 Underground ducts.
• Metallic ducts not having an approved protective
  coating shall be completely encased in a minimum
  of 2 inches of concrete
• 603.16.1 Slope.
• 603.16.2 Sealing.
• 603.16.3 Plastic ducts and fittings.
• PVC having a minimum pipe stiffness of 8 Psi at
  5-percent deflection

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 606 SMOKE DETECTION SYSTEMS CONTROL
• 606.1 Controls required.
• Exception Structures classified as R-3 occupancy
  type
• 607 DUCTS AND AIR TRANSFER OPENINGS
• This section has been expanded. Slides address
  additions in the 2003 International Building
  Code, Mechanical.

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 607.5 Where required.
• 607.5.2 Fire barriers.
• For the purposes of Exception 3, a ducted HVAC
  system shall be a duct system for the structures
  HVAC system. Such a duct system shall be
  constructed of sheet metal not less than 26-gage
  (0.0217 inch) thickness and shall be continuous
  from the air-handling appliance or equipment to
  the air outlet and inlet terminals.

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 607.5.3 Fire partitions.
• Exceptions to include
• 2.6. A minimum 12-inch-long by 0.060-inch-thick
  steel sleeve shall be centered in each duct
  opening. The sleeve shall be secured to both
  sides of the wall and all four sides of the
  sleeve with minimum 1½- inch by 1½-inch by
  0.060-inch steel retaining angles. The retaining
  angles shall be secured to the sleeve and the
  wall with No. 10 (M5) screws. The annular space
  between the steel sleeve and the wall opening
  shall be filled with rock (mineral) wool
  batting on all sides.

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 607.5.5.1 Penetrations of shaft enclosures.
• Exceptions added
• Steel exhaust subducts
• Penetration tested with ASTM E 119
• Ducts are part of approved smoke control system
• Parking garages2-hour separation
• continued on next slide

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 607.5.5.1 Penetrations of shaft enclosures.
  (cont'd)
• Group B, equipped with automatic sprinkler, smoke
  dampers not required where
• Bathrooms meeting exhaust opening requirements
• Ducts as part of approved smoke control system
• Parking garages with 2-hour ratingnot required

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 607.6 Horizontal assemblies.
• 607.6.1 Through penetrations.
• Group I2, I3
• Exceptions added, meeting all of the following
  requirements
• 1. Duct contained and located within the cavity
  of a wall and shall be constructed of steel not
  less than 0.019 inch (26 gage) in thickness.
• 2. The duct shall open into only one dwelling
  unit or sleeping unit and the duct system shall
  be continuous from the unit to the exterior of
  the building.
• continued on next slide

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 607.6.1 Through penetrations.
• Exceptions added (cont'd)
• 3. Duct shall not exceed 4-inch nominal diameter
  and the total area of such ducts shall not exceed
  100 sq. in. for any 100 sq. ft. of the floor
  area.
• 4. Annular space around the duct is protected
  with materials that prevent the passage of flame
  and hot gases sufficient to ignite cotton waste
  where subjected to ASTME 119 time-temperature
  conditions under a minimum positive pressure
  differential of 0.01 inch of water at the
  location of the penetration for the time period
  equivalent to the fire-resistance rating of the
  construction penetrated.
• continued on next slide

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Florida Building Code, MechanicalChapter 6 Duct
Systems

• 607.6.1 Through penetrations.
• Exceptions added (cont'd)
• 5. Grille openings located in a ceiling of a
  fire-resistance-rated floor/ceiling or
  roof/ceiling assembly shall be protected with a
  ceiling radiation damper in accordance with
  Section 607.6.2.

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Florida Building Code, Mechanical Chapter 7
Combustion Air

• Sections 701 thru 708 of the 2001 Florida
  Building Code, Mechanical have been replaced with
  Sections 304.1 304.12 of 2003 International
  Fuel Gas Code (IFGC).

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.1 General.
• Requirements for air for combustion, ventilation
  and dilution of flue gases for gas utilization
  equipment installed in buildings (refer to
  Sections 304.5 304.9 or 304.6 304.9)
• Direct-vent appliances, gas appliances of other
  than natural draft design, etc. shall be in
  accordance with equipment manufacturers
  instructions

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.5 Indoor combustion air.
• Use 304.5.1 or 304.5.2 unless ACH is less than
  0.40 then use 304.5.2 to determine required
  volume of indoor air.

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.5.3 Indoor opening size and location.
• Use 304.5.3.1 and 304.5.3.2 to size and locate
  openings used to connect indoor spaces.

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.6 Outdoor combustion air.
• Outdoor combustion air shall be provided through
  opening(s) to the outdoors in accordance with
  Section 304.6.1 or 304.6.2. The minimum
  dimension of air openings shall be not less than
  3 inches (76 mm).

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.7 Combination indoor and outdoor combustion
  air.
• Use 304.7.1 through 304.7.3 when using a
  combination of indoor and outdoor combustion air.

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.7 Mechanical combustion air supply.
• Where all combustion air is provided by a
  mechanical air supply systemthe combustion air
  shall be supplied at a rate not less than 0.35 cu
  ft/min per 1000 Btu/h of total input rating of
  all appliances in the space.

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.10 Louvers and grilles.
• Added screens assume wood louvers will have 25
  free area and metal louvers and grilles will have
  75 free area screens shall have a mesh size no
  smaller than ¼ inch means have to be provided to
  prevent main burner from igniting if the louvers
  fail to open during burner start-up and to shut
  down the main burner if the louvers close during
  operation.

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.11 Combustion air ducts.
• Numbers 68 have been added.

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Florida Building Code, Fuel GasChapter 3,
General Regulations

• SECTION 304 (IFGS) COMBUSTION, VENTILATION AND
  DILUTION AIR
• 304.12 Protection from fumes and gases.
• Refers to disposal of corrosive or flammable
  process fumes or gasesother than products of
  combustion.

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Florida Building Code, Mechanical Chapter 7
Combustion Air

• 708 INSTALLATION
• Where a code provision is less restrictive than
  the conditions of the listing of the equipment or
  appliance or the manufacturers installation
  instructions,the conditions of the listing and
  the manufacturers installation instructions
  shall apply.

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Florida Building Code, Mechanical Chapter 7
Combustion Air

• 709 OPENING LOCATION AND PROTECTION
• 709.1 Protection from fumes and gases.
• Means for disposal of such fumes or gases include
  carbon monoxide, hydrogen sulfide, ammonia,
  chlorine and halogenated hydrocarbons shall be
  provided.

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Florida Building Code, Mechanical Chapter 8
Chimneys and Vents

• 801 GENERAL
• 801.20 Plastic vent joints.
• Manufacturers installation instructions (pipe
  and appliance)
• Solvent cements joints between ABS piping shall
  be cleaned
• CPVC and PVC pipe and fittings shall be primed
• Primer shall be a contrasting color.
• Exception Conflict with manufacturers
  instructions

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Florida Building Code, Mechanical Chapter 8
Chimneys and Vents

• 804.3.8 Mechanical draft systems for manually
  fired appliances and fireplaces.
• Such systems must meet all of the following
• Mechanical draft device listed/labeled and
  Manufacturers installation instructions
• Warning alarm, battery backup
• Smoke detector

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Florida Building Code, MechanicalChapter 9
Specific Appliances, Fireplaces and Solid
Fuel-Burning Equipment

• 916 POOL AND SPA HEATERS
• 916.1 General.
• Electric pool and spa heaters shall be tested in
  accordance with UL 1261

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Florida Building Code, MechanicalChapter 9
Specific Appliances, Fireplaces and Solid
Fuel-Burning Equipment

• 926 RESIDENTIAL RADIANT HEATING SYSTEMS
• 927 RESIDENTIAL ELECTRIC DUCT HEATERS
• 928 VENTED RESIDENTIAL FLOOR FURNACES
• 929 VENTED RESIDENTIAL WALL FURNACES
• 930 VENTED RESIDENTIAL ROOM HEATERS

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Florida Building Code, MechanicalChapter 10
Broilers, Water Heater and Pressure Vessels

• No major changes/updates

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Florida Building Code, Mechanical Chapter 11
Refrigeration

• 1101 GENERAL
• Added
• 1101.7 Maintenance.
• 1101.8 Change in refrigerant type.
• Refrigerant circuit containing more than 220
  pounds of Group A1 or 30 pounds of any other
  group refrigerant shall not be changed without
  prior notification to the code official
• Table 1103.1, "Refrigerant Classification, Amount
  and TLV-YWA" completely redone

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Florida Building Code, Mechanical Chapter 12
Hydronic Piping

• 1203 JOINTS AND CONNECTIONS
• 1203.3 Joint preparation and installation.
• 1203.3.8 Mechanically formed tee fittings.
• Height not less than three times the thickness
• 1203.3.8.1 Full flow assurance.
• Dimple/depth stop shall be formed in the branch
• Inspection dimple shall be placed 0.25 inch above
  the first dimple
• 1203.3.8.2 Brazed joints.

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Florida Building Code, MechanicalChapter 12
Hydronic Piping

• 1206 PIPING INSTALLATION
• Removed 1206.1 Prohibited tee applications.
  Fluid in the supply side of a hydronic system
  shall not enter a tee fitting through the branch
  opening.
• 1208 TESTS
• 1208.1 General.
• Adds test duration shall not be less than 15
  minutes.
• 1208.1.1 Ground source heat pump loop systems.
• Shall be pressure tested.

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Florida Building Code, Mechanical Chapter 13
Fuel Piping and Storage

• No major changes

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Florida Building Code, Mechanical Chapter 14
Solar Systems

• 1402.2 Protection of equipment.
• Solar equipment exposed to vehicular traffic
  shall be installed not less than 6 feet above the
  finished floor.
• Exception This section shall not apply where the
  equipment is protected from motor vehicle impact.

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Florida Building Code, Mechanical Chapter 15
Referenced Standards

• Provides updates to referenced standards

68
Florida Building Code, Building

• Chapter 13 Energy Efficiency

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FLORIDA BUILDING CODE, RESIDENTIALCHAPTER 11
ENERGY EFFICIENCY

• SECTION 1101 GENERAL
• N1101 Energy Efficiency.
• The provisions of Chapter 13, Florida Building
  Code, Building shall govern the energy efficiency
  of residential construction.

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FLORIDA BUILDING CODE, BUILDINGCHAPTER 13
ENERGY EFFICIENCY

• SUB-CHAPTER 1 ADMINISTRATION AND ENFORCEMENT
• Known as Florida Energy Efficiency Code for
  Building Construction
• Changes references from "Department of Community
  Affairs" to "the Commission" (Florida Building
  Commission)

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SUB-CHAPTER 1, ADMINISTRATION ENFORCEMENT
SECTION 101 SCOPE

• 101.1.1 New Construction
• Commercial Building Compliance Methods
• Changes Method titles
• Method B Building Envelope Tradeoff Method
• Method C Buildings Prescriptive Envelope Method
• Removes Method D Renovations and Systems
  Prescriptive Method

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SUB-CHAPTER 1, ADMINISTRATION ENFORCEMENT
SECTION 101 SCOPE

• 101.1.6 Shell Buildings.
• Adds Method C of Sub-chapter 4 as compliance
  option
• 101.4.1 Existing Buildings Not Previously
  Conditioned.
• Adds Method C of Sub-chapter 4 as compliance
  option for commercial buildings

73
SUB-CHAPTER 1, ADMINISTRATION ENFORCEMENT
SECTION 104 INSPECTIONS

• 104.4.5 Fenestration Energy Rating Labels
• Changes references
• Tables B-6, B-7 and B-8 of Appendix B for
  U-factor and SHGC shall be used to determine code
  compliance for commercial applications and in
• Section 601.1.ABC.1 for residential applications

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SUB-CHAPTER 2, DEFINITIONSSUB-CHAPTER 3,
REFERENCED STANDARDS ORGANIZATIONS

• SUB-CHAPTER 2 DEFINITIONS
• Added, refined and deleted
• SUB-CHAPTER 3 REFERENCED STANDARDS AND
  ORGANIZATIONS
• Appropriate reference changes, additions

75
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODSSECTION 400 ADMINISTRATION

• 400.0.ABC Compliance Criteria.
• Criteria specific to method of compliance
• 1. Prescriptive Requirements (A, B, C)
• 2. Performance Calculation Procedure (A, B).
• 3. Certification of Compliance (A,B,C)
• 4. Reporting (A, B, C)

76
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• 400.0.A Method A, the Whole Building Performance
  Method.
• Design energy cost does not exceed the energy
  cost budget
• Energy efficiency level of components specified
  in the building design meet or exceed the
  efficiency levels used to calculate the design
  energy cost.
• Review "Informative Note"

77
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• 400.0.B Method B, the Building Envelope Tradeoff
  Method.
• Meets basic prescriptive requirements
• Proposed envelope performance factor is less than
  or equal to the envelope performance factor of
  budget building
• Envelope performance factor shall be calculated
  using the EnergyGauge FLA/COM 2004 computer
  program
• Procedures for envelope components met under
  compliance Method B

78
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• 400.0.C Method C, the Buildings Prescriptive
  Envelope Method.
• Listed on Form 400C for the appropriate climate
  zone
• Either nonresidential or residential
• Conditioned space or unconditioned space
  requirements

79
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• 400.0.C.1 Scope.
• Used provided that
• a. The vertical fenestration area does not exceed
  50 of the gross wall area for each
  space-conditioning category and
• b. The skylight fenestration area does not exceed
  5 of the gross roof area for each
  space-conditioning category. Requirements are
  specified for the exterior building envelope,
  which separates conditioned space from the
  exterior.

80
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• Exceptions For buildings that contain spaces
  that will be only semi-heated or unconditioned,
  and if compliance Method A is used for such
  spaces, then Method C also specifies requirements
  for the semi-exterior building envelope, which
  separates
• a. conditioned space from either semiheated space
  or unconditioned space,
• b. semiheated space from either unconditioned
  space or from the exterior
• Note Method C does not address moisture control

81
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• 400.0.C.2 Space conditioning.
• Separate exterior building envelope requirements
  for
• nonresidential conditioned space,
• residential with greater than 3 stories
  conditioned space.
• Spaces shall be assumed to be conditioned
• Exceptions
• Spaces without air conditioning
• Semi-exterior building envelope requirements apply

82
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• 400.0.C.3 Maximum U-factor, C-factor, F-factor.
• Compliance shown in lieu of minimums
• U-factors, C-factors, and F-factors determined
  from Appendix B

83
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 400 ADMINISTRATION

• 400.2 Performance Calculation Procedures.
• Method B allows performance tradeoffs for
  envelope features only
• Buildings complying by Method C have only
  prescriptive minimum requirements for envelope
  and equipment
• Calculation procedures for Methods A and B are
  contained in the FLA/COM computer program
• Method A allows tradeoffs among all building
  systems

84
TABLE 13-400.3.ABC.3INDEX TO COMMERCIAL CODE
COMPLIANCE FORMS
85
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• 401.1.C Prescriptive Requirements Specific to
  Method C.
• Compliance with U-factors and solar heat gain
  coefficient (SHGC) shall be demonstrated
• Gross wall areas and gross roof areas shall be
  calculated separately for each space-conditioning
  category
• Exception It is not acceptable to do an
  area-weighted average across multiple classes of
  construction or multiple space-conditioning
  categories.

86
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• 401.1.C.1 Fenestration Area.
• Fixed and operable less than 50 gross wall area
• Skylights less than 5 of gross roof area
• Exception if complying with Exception 3 to
  401.2.C.3.

87
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• 401.1.C.2 Fenestration U-Factor.
• Not greater than Form 400C
• Determined in accordance with manufacturers
  specification
• Exception if complying with Exception 3 to
  401.2.C.3 and U-factor less than 40 of gross
  wall area

88
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• 401.1.C.3 Fenestration Solar Heat Gain
  Coefficient (SHGC).
• Vertical fenestration and skylights shall have an
  SHGC not greater than that specified for all
  orientations on Form 400C
• Fenestration shall be determined from
  manufacturers product specification sheets
• No SHGC requirements for semiheated spaces.
• Exceptions
• continued on next slide

89
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• Exceptions (cont'd)
• Latitudes greater than 10 degrees, north-oriented
  vertical fenestration shall be calculated
  separately and not exceed Form 400C
• Multipliers in Table 401.2.C.3 for each
  fenestration product shaded by permanent
  projections
• continued on next slide

90
TABLE 13-401.1.C.3SHGC MULTIPLIERS FOR PERMANENT
PROJECTIONS
91
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• Exceptions (cont'd)
• Vertical fenestration that is located on the
  street side of the street-level story only,
  provided that
• Story does not exceed 20' in height
• Continuous overhang with a weighted average
  projection factor greater than 0.5
• Street side of the street-level story is less
  than 75 of the gross wall area for the street
  side

92
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• 401.2AB.5 Visible light transmittance.
• Visible light transmittance shall be determined
  in accordance with NFRC 200.
• Visible light transmittance shall be verified and
  certified by the manufacturer.

93
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 401 FENESTRATIONS

• 401.2.A Performance Calculation Procedures
  Specific to Method A.
• All components of the building envelope in the
  proposed design shall be modeled as shown on
  architectural drawings or as installed for
  existing building envelopes.
• Exceptions
• Envelope assembly less than 5 of total area
• Exterior surfaces tilt more than 45º - single
  surface

94
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 402 WALLS

• 402.1.C Prescriptive Requirements Specific to
  Method C.
• 402.1.C.1 Above-Grade Wall Insulation.
• R value not less than Form 400C
• Mass wall heat capacity shall be determined from
  Table B-10 or B-11

95
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 402 WALLS

• 402.1.C.1 Above-Grade Wall Insulation.
• 1. Mass walls, rated R-value of insulation
• Is for continuous insulation uninterrupted by
  framing other than 20 gauge 1 in. metal clips
  spaced no closer than 24 in. o.c.horizontally and
  16 in. o.c.
• Where rated R-value of insulation for concrete
  sandwich panels, the insulation shall be
  continuous throughout the entire panel.
• Exception (See notes)
• continued on next slide

96
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 402 WALLS

• 402.1.C.1 Above-Grade Wall Insulation. (cont'd)
• Metal building walls rated R-Value of insulation
• Is for insulation compressed between metal wall
  panels and the steel structure
• Double-layer installations, the second rated
  R-value of insulation is for insulation
  installed from the inside, covering the girts
• Continuous insulation is assumed the insulation
  boards are installed on the inside of the girts
  and uninterrupted by the framing members
• continued on next slide

97
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 402 WALLS

• 402.1.C.1 Above-Grade Wall Insulation. (cont'd)
• Steel-framed walls rated R-value of insulation
• Is for uncompressed insulation installed in the
  cavity between steel studs
• Acceptable for continuous insulation
  uninterrupted by framing
• If two values, second rated R-value of
  insulation is for continuous insulation
  uninterrupted by framing, etc., is to be
  installed in addition to the first insulation
• continued on next slide

98
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 402 WALLS

• 402.1.C.1 Above-Grade Wall Insulation. (cont'd)
• Wood-framed and other walls rated R-value of
  insulation
• Is for uncompressed insulation installed in the
  cavity between wood studs
• Wall consists of both above-grade and below-grade
  portions, the entire wall for that story shall be
  insulated on either the exterior or the interior
  or be integral

99
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 402 WALLS

• 402.1.C.2 Below-Grade Wall Insulation.
• Below-grade walls shall have a rated R-value of
  insulation not less than that specified in Form
  400C. For below-grade walls, the rated R-value of
  insulation is for continuous insulation
  uninterrupted by framing. Where framing,
  including metal and wood studs, is used,
  compliance shall be based on the maximum assembly
  C-factor.

100
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 403 DOORS

• 403.1.C.1 Opaque Doors.
• U-factor not greater than that specified on Form
  400C

101
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 404 ROOFS / CEILINGS

• 404.1.ABC.1 Roof/Ceiling Thermal Envelopes.
• At least R-10
• Roof insulation shall not be installed on a
  suspended ceiling with removable ceiling panels.

102
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 404 ROOFS / CEILINGS

• 404.1.C Prescriptive Requirements Specific to
  Method C.
• Rated R-value of insulation not less than that
  specified on Form 400C
• Single-rafter roofs, the requirement is the
  lesser of the values for attics and other roofs
  and those listed in Table 404.1.C.1
• Exceptions
• Solar reflectance
• Thermal emittance minimums

103
TABLE 13-404.1.C.1ASINGLE RAFTER ROOFS
104
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 404 ROOFS / CEILINGS

• 404.1.C.1 Roof Insulation.
• 404.1.C.1.1. For roofs with insulation entirely
  above deck
• Allowances for interruptions
• 404.1.C.1.2. For metal building roofs first rated
  R-Value for insulation draped over
  purlins,compressed when spanning members are
  attached, or for insulation hung between the
  purlins, provided there is a minimum 1 in.
  thermal break between the purlins and the metal
  spanning members
• Double layer, exposed to conditioned space

105
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 404 ROOFS / CEILINGS

• 404.1.C.1 Roof Insulation.
• 404.1.C.1.3. For attics and other roofs, the
  rated R-value of insulation is for insulation
  installed both inside and outside the roof
  cavity, or entirely inside the roof cavity
• Permitted to be tapered at the eaves
• Single-rafter roofs, Table 404.1.C.1.A

106
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 405 FLOORS

• 405.1.C Prescriptive Requirements Specific to
  Method C.
• 405.1.C.1 Floor Insulation.
• Form 400C
• 405.1.C.1.1 Mass floors.
• Maximum assembly U-factor rather than the minimum
  rated R-value of insulation

107
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 405 FLOORS

• 405.1.C.1 Floor Insulation.
• 405.1.C.1.2. Steel joist floors.
• First rated R-value of insulation is for
  uncompressed insulation installed in the cavity
  between steel joists or for spray-on insulation
• Continuous insulation shall be installed either
  on the interior above the floor structure or
  below a framing cavity completely filled with
  insulation

108
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 405 FLOORS

• 405.1.C.1 Floor Insulation.
• 405.1.C.1.3 Wood-framed and other floors.
• First rated R-value of insulation is for
  uncompressed insulation installed in the cavity
  between wood joists
• Continuous insulation shall be installed either
  on the interior above the floor structure or
  below a framing cavity completely filled with
  insulation

109
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 405 FLOORS

• 405.1.C.4 Slab-on-Grade Floor Insulation.
• Rated R-value of insulation not less than that
  specified on Form 400C
• Horizontal insulation extending outside of the
  foundation shall be covered by pavement or by
  soil a minimum of 10 in. thick
• Exception Monolithic slab-on-grade floor, the
  insulation shall extend from the top of the
  slab-on-grade to the bottom of the footing

110
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 406 AIR INFILTRATION

• 406.1.ABC.1.1 Exterior Doors and Windows.
• Determined in accordance with NFRC 400 or other
  code-approved certification program
• Air leakage shall not exceed 1.0 cfm/ft2 for
  glazed swinging entrance doors and for revolving
  doors and 0.4 cfm/ft2 for all other products
• Exceptions Field fabricated and garage doors
  meeting ANSI/DASMA 105

111
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 406 AIR INFILTRATION

• 406.1.ABC.1.2 Exterior Joints in the Envelope.
• Shall be sealed, caulked, gasketed, or
  weather-stripped
• Fenestration and door frames
• Walls and foundations, building corners, floors,
  roofs, wall panels
• Utility services through roofs, walls, and floors
  
• Site-built fenestration and doors
• Building assemblies used as ducts or plenums
• Penetrations of vapor retarders
• All other openings

112
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.1 Simultaneous Heating and Cooling.
• 407.1.ABC.2.1.1 Zone Controls.
• Sections contains same basic provisions as 2001
  Florida Building Code but is presented differently

113
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.2 Hot Gas Bypass Limitation.
• Cooling systems shall not use hot gas bypass or
  other evaporator pressure control systems unless
  the system is designed with multiple steps of
  unloading or continuous capacity modulationwith
  limitations
• Exception Unitary packaged systems with cooling
  capacities not greater than 90,000 Btu/h.

114
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.2 Temperature Controls.
• Supply to each zone shall have control within
  that zone
• Dwelling unit considered single zone
• Exceptions Independent perimeter systems that
  are designed to offset only building envelope
  loads2 conditions

115
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.2.2 Dead Band.
• Added Exception
• In the case of VAV systems, the deadband may be
  reduced to 2½º F if the occupant control of the
  thermostat is programmed to limit the adjustment
  of the VAV system zone temperature to plus or
  minus 1½º F from the thermostat set point

116
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.2.3 Set Point Overlap Restriction.
• Means shall be provided to prevent the heating
  set point from exceeding the cooling set point
  minus any applicable proportional band
• 407.1.ABC.2.2.4 Hydronic Systems, Reset Controls.
• See Section 411.1.ABC.1.3, Chilled and Hot Water
  Temperature Reset Controls

117
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.3.1 Dehumidification.
• Where provided, controls shall prevent reheating,
  mixing of hot and cold airstreams, or other means
  of simultaneous heating and cooling of the same
  airstream.
• Exceptions
• System is capable of reducing supply air volume
  to 50 or less of the design airflow rate (or
  ASHRAE 62) before simultaneous heating and
  cooling
• continued on next slide

118
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• Exceptions (cont'd)
• The individual fan cooling unit has a design
  cooling capacity of 80,000 Btu/h or less and is
  capable of unloading to 50 capacity before
  simultaneous heating and cooling takes place
• The individual mechanical cooling unit has a
  design cooling capacity of 40,000 Btu/h or less.
• Systems serving spaces where specific humidity
  levels are required
• continued on next slide

119
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• Exceptions (cont'd)
• At least 75 of the energy for reheating or for
  providing warm air in mixing systems is provided
  from a site-recovered (including condenser heat)
  or site solar energy source
• Systems where the heat added to the airstream is
  the return air enthalpy result of the use of a
  desiccant system and 75 of the heat added by the
  desiccant system is removed by a heat exchanger

120
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.3.2 Humidifier Preheat.
• Automatic shut off when not required
• 407.1.ABC.2.3.3 Humidification and
  Dehumidification.
• Means shall be provided capable of preventing
  simultaneous operation of humidification and
  dehumidification equipment
• Exceptions
• Desiccant systems
• Specific humidity requirements

121
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.4 Off-Hour Controls.
• Systems with greater than 65K Btu/h and fan power
  greater than 3/4 hp shall have
• Automatic Shutdown
• Setback Controls
• Optimum Start Controls
• Shutoff Damper Controls
• Zone Isolation
• Exceptions
• Hotel/motel guest rooms
• Continuous operation

122
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.4.1 Automatic Shutdown.
• Shall be equipped with one of the following
• Control that can operate at different schedules,
  power loss, manual override
• Occupant sensor - 30 minutes
• Manual timer 2 hours
• Security system interlock
• Exception Residential occupancies

123
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.4.2 Optimum Start Controls.
• Systems exceeding 10,000 cfm shall have optimum
  start controls.
• Shall be at a minimum function of difference in
  space temperature and occupied setpoint

124
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.2.4.3 Zone Isolation.
• Single isolation does not exceed 25,000 ft2
• Isolation shut off
• Independent control
• Central systems and plants
• Exceptions Not required when
• Exhaust to zones 500 cfm or smaller
• Exhaust from zone less than 10 of design airflow
• Intended to operate continuously or when all
  other zones inoperative

125
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.3.1.1 Equipment Efficiency
  Verification.
• Tables 407.1.ABC.3.2A through 407.1.ABC.3.2D
• Data furnished by the manufacturer
• Florida-registered engineer

126
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.3.2 Mandatory Provisions.
• Equipment shown in Tables 407.1.ABC.3.2A through
  407.1.ABC.3.2D shall have a minimum performance
• Equipment not listed, shall satisfy rating
  conditions
• Equipment used to provide water heating functions
  as part of a combination system shall satisfy all
  stated requirements for the appropriate category.
• Note how tables are organized/labeled

127
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• The following tables are completely revised
• Table 407.1.ABC.3.2A Air Conditioners and
  Condensing Units
• Table 407.1.ABC.3.2B Heat Pumps
• Table 407.1.ABC.3.2C Water Chilling Packages
• Table 407.1.ABC.3.2D Packaged Terminal and Room
  Air Conditioners and Heat Pumps

128
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• Exception Water-cooled centrifugal
  water-chilling packages that are not designed for
  operation at ARI Standard 550/590 test conditions
• Shall have a minimum full-load COP as shown in
  Tables 407.1.ABC.3.2H, I, and J
• Minimum NPLV rating as shown in Tables
  407.1.ABC.3.2K, L, and M
• (NPLV) is defined as a single-number part-load
  efficiency figure of merit for chillers
  referenced to conditions other than IPLV
  conditions

129
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.3.4 Heat Rejection Equipment.
• Applies to heat rejection equipment used in
  comfort cooling systems
• Exception Devices included in ratings from
  tables
• 407.1.ABC.3.4.2 Fan Speed Control.
• Motor of 7.5 hp or larger shall have capacity to
  operate that fan at two-thirds of full speed or
  less and controls to automatically change fan
  speed
• Exceptions Condenser fans serving multiple
  refrigerant circuits or flooded condensers or up
  to one-third of the fans on a condenser or tower
  with multiple fans, where the lead fans comply
  with the speed control requirement.

130
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.ABC.3.5 Exhaust Air Energy Recovery for
  Cooling Systems.
• Individual fan systems that have both a design
  supply air capacity of 5000 cfm or greater and
  have a minimum outside air supply of 70 or
  greater of the design supply air quantity shall
  have an energy recovery system with at least 50
  recovery effectiveness
• Exceptions provided

131
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 407 SPACE COOLING SYSTEMS

• 407.1.BC Prescriptive Requirements Specific to
  Methods B and C.
• Shall meet or exceed the code minimum for the
  equipment installed per Tables 407.1.ABC.3.2A
  through D
• Electric resistance reheat shall not be used when
  complying with this code by Methods B and C.

132
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE
METHODS SECTION 408 SPACE HEATING EQUIPMENT

• 408.1.ABC.2.2 Heat Pump Auxiliary Heat Control.
• Internal electric resistance heaters shall have
  controls that prevent supplemental heater
  operation when the heating load can be met by the
  heat pump alone during both steady-state