2004 Florida Building Code_ Mech

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2004 Florida Building Code,
Mechanical/Energy

Technical Core Update
(4 hours)
June 2004
2004 Florida Building Code

Mechanical
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
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)
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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)
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 3: General Regulations
306 ACCESS AND SERVICE SPACE
 306.3.2 [from Chapter 13–

610.1.ABC.3.5.2] Air-handling units.
 Specific requirements for air handler in
attic and homeowners notice added here
Florida Building Code, Mechanical
Chapter 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.
Florida Building Code, Mechanical
Chapter 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.
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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
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
Florida Building Code, Mechanical
Chapter 4: Ventilation
406 VENTILATION OF
UNINHABITED SPACES
 406.1 Ventilation of uninhabited
spaces.
 This section has been deleted.
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.
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
Florida Building Code, Mechanical
Chapter 5: Exhaust Systems
 502.7 Application of flammable finishes.
 502.8 Hazardous materials—general
requirements. (expanded)
 502.9 Hazardous materials—requirements
for specific materials.
 502.10 Hazardous production materials.
 502.12 Organic coating processes.
 502.15 and 502.16 Repair garages.
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
Florida Building Code, Mechanical
Chapter 5: Exhaust Systems
 504.6 Domestic clothes dryer ducts.
 Added Exception:
 Booster fan in accordance with
manufacturer‘s installation instructions
 Exception also found in Florida Building
Code, Residential Chapter 15 Exhaust
Systems.
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)
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.
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
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
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
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
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.
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.
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.
Florida Building Code, Mechanical
Chapter 6: Duct Systems
601 GENERAL
 601.4 Balanced return air.
 Three Exceptions.
Florida Building Code, Mechanical
Chapter 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.
Florida Building Code, Mechanical
Chapter 6: Duct Systems
 602.2.1.1 Wiring.
 NFPA 262 replaces UL 910
 NFPA 70 referenced by Florida Building
Code, Building, Chapter 27: Electrical
Florida Building Code, Mechanical
Chapter 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 density…and is listed and
labeled
Florida Building Code, Mechanical
Chapter 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.
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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.
Florida Building Code, Mechanical
Chapter 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
structure‘s 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.
Florida Building Code, Mechanical
Chapter 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.
Florida Building Code, Mechanical
Chapter 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 garages—2-hour separation
…continued on next slide
Florida Building Code, Mechanical
Chapter 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 rating—
not required
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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.
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).
Florida Building Code, Fuel Gas
Chapter 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 manufacturer‘s instructions
Florida Building Code, Fuel Gas
Chapter 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.
Florida Building Code, Fuel Gas
Chapter 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.
Florida Building Code, Fuel Gas
Chapter 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).
Florida Building Code, Fuel Gas
Chapter 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.
Florida Building Code, Fuel Gas
Chapter 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 system…the
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.
Florida Building Code, Fuel Gas
Chapter 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.
Florida Building Code, Fuel Gas
Chapter 3, General Regulations
SECTION 304 (IFGS) COMBUSTION,
VENTILATION AND DILUTION AIR
 304.11 Combustion air ducts.

 Numbers 6–8 have been added.
Florida Building Code, Fuel Gas
Chapter 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 gases—
other than products of combustion.
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 manufacturer‘s installation
instructions,the conditions of the listing
and the manufacturer‘s installation
instructions shall apply.
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.
Florida Building Code, Mechanical
Chapter 8: Chimneys and Vents
801 GENERAL
 801.20 Plastic vent joints.

 Manufacturer‘s 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 manufacturer‘s
instructions
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
Manufacturer‘s installation instructions
 Warning alarm, battery backup
 Smoke detector
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 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
Florida Building Code, Mechanical
Chapter 10: Broilers, Water Heater and
Pressure Vessels

 No major changes/updates
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
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.
Florida Building Code, Mechanical
Chapter 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.
Florida Building Code, Mechanical
Chapter 13: Fuel Piping and Storage
 No major changes
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.
Florida Building Code, Mechanical
Chapter 15: Referenced Standards
 Provides updates to referenced
standards
Florida Building Code, Building

Chapter 13: Energy Efficiency
FLORIDA BUILDING CODE, RESIDENTIAL
CHAPTER 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.
FLORIDA BUILDING CODE, BUILDING
CHAPTER 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)
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
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
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
SUB-CHAPTER 2, DEFINITIONS
SUB-CHAPTER 3, REFERENCED STANDARDS &
ORGANIZATIONS

 SUB-CHAPTER 2 DEFINITIONS
 Added, refined and deleted

 SUB-CHAPTER 3 REFERENCED
STANDARDS AND ORGANIZATIONS
 Appropriate reference changes,

additions
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 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)
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"
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
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
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.
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
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
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
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
TABLE 13-400.3.ABC.3
INDEX TO COMMERCIAL CODE COMPLIANCE FORMS

METHOD FORM NUMBER

Method A: Form 400A-04
Whole Building Performance (FLA/COM computer printout)

Method B: Form 400B-04
Building Envelope Tradeoff (FLA/COM computer printout)

Method C: Form 400C-04
(separate forms for North,
Buildings Prescriptive Envelope Central, and South Florida)
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.
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.
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
manufacturer‘s specification
 Exception if complying with Exception 3 to
401.2.C.3 and U-factor less than 40% of gross
wall area
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
manufacturer‘s product specification sheets
 No SHGC requirements for semiheated spaces.
 Exceptions
…continued on next slide
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 401 FENESTRATIONS
 Exceptions: (cont'd)
1. Latitudes greater than 10 degrees, north-
oriented vertical fenestration shall be
calculated separately and not exceed
Form 400C
2. Multipliers in Table 401.2.C.3 for each
fenestration product shaded by
permanent projections
…continued on next slide
TABLE 13-401.1.C.3
SHGC MULTIPLIERS FOR PERMANENT PROJECTIONS
Projection SHGC Multiplier SHGC Multiplier
Factor (All Other Orientations) (North-Oriented)

0–0.10 1.00 1.00
< 0.10–0.20 0.91 0.95
< 0.20–0.30 0.82 0.91
< 0.30–0.40 0.74 0.87
< 0.40–0.50 0.67 0.84
< 0.50–0.60 0.61 0.81
< 0.60–0.70 0.56 0.78
< 0.70–0.80 0.51 0.76
< 0.80–0.90 0.47 0.75
< 0.90–1.00 0.44 0.73
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 401 FENESTRATIONS
 Exceptions: (cont'd)
3. 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
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.
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
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
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
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 402 WALLS
 402.1.C.1 Above-Grade Wall Insulation. (cont'd)
2. 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
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 402 WALLS
 402.1.C.1 Above-Grade Wall Insulation. (cont'd)
3. 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
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 402 WALLS
 402.1.C.1 Above-Grade Wall Insulation. (cont'd)
4. 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
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.
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
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.
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
TABLE 13-404.1.C.1A
SINGLE RAFTER ROOFS

Minimum Insulation R-Value or
Maximum Assembly U-Factor
Wood Rafter Depth, d (actual)
10 < d < 12
d < 8 in. 8 < d < 10 in.
in.
R-19 R-30 R-38
U-0.055 U-0.036 U-0.028
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
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
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
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
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
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
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
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
a) Fenestration and door frames
b) Walls and foundations, building corners, floors, roofs, wall
panels
c) Utility services through roofs, walls, and floors
d) Site-built fenestration and doors
e) Building assemblies used as ducts or plenums
f) Penetrations of vapor retarders
g) All other openings
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
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
modulation……with limitations
 Exception: Unitary packaged systems with
cooling capacities not greater than 90,000 Btu/h.
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 loads…2 conditions
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 407 SPACE COOLING SYSTEMS

 407.1.ABC.2.2.2 Dead Band.
 Added Exception:
3. 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
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
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:
1. 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
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 407 SPACE COOLING SYSTEMS
 Exceptions: (cont'd)
2. 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
3. The individual mechanical cooling unit has a design
cooling capacity of 40,000 Btu/h or less.
4. Systems serving spaces where specific humidity
levels are required
…continued on next slide
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 407 SPACE COOLING SYSTEMS
 Exceptions: (cont'd)
5. 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
6. 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
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
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
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
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
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
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
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
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
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
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.
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
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.
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
operation and setback recovery
 Exception: Heat pumps whose minimum
efficiency is regulated by NAECA and whose HSPF
rating both meets the requirements shown in
Table 407.1.ABC.3.2B and includes all usage of
internal electric resistance heating.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 408 SPACE HEATING EQUIPMENT

 408.1.ABC.2.3 Freeze Protection.
 Freeze protection systems, such as heat
tracing of outdoor piping and heat
exchangers, including self-regulating heat
tracing, shall include automatic controls
capable of shutting off the systems when
outside air temperatures are above 40º F or
when the conditions of the protected fluid will
prevent freezing.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 408 SPACE HEATING EQUIPMENT

 408.1.ABC.3.1.1 Equipment Efficiency
Verification.
 Certification programs from Tables
408.1.ABC.3.2E – 408.1.ABC.3.2G
 Furnished by manufacturers
 Florida-registered engineer
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 408 SPACE HEATING EQUIPMENT

 408.1.ABC.3.2.1 Equipment Ratings.
 The tables are organized to cover the following
types of equipment:
 Table 407.1.ABC.3.2B Heat Pumps
 Table 407.1.ABC.3.2D Packaged Terminal Air
Conditioners and Heat Pumps
 Table 408.1.ABC.3.2E Furnaces, Duct Furnaces,
and Unit Heaters
 Table 408.1.ABC.3.2F Boilers
 Table 408.1.ABC.3.2G Heat Rejection Equipment
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 408 SPACE HEATING EQUIPMENT

 408.1.ABC.3.2.2 Radiant Heating
Systems.
 When required for enclosed spaces
 408.1.ABC.3.2.2.2 Heating Enclosed
Spaces.
 Governs provisions of standard
 Radiant hydronic ceiling/floor panels
 Combination/hybrid systems incorporating radiant
heating (cooling) panels
 In conjunction with other systems
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 408 SPACE HEATING EQUIPMENT

 408.1.BC Prescriptive Requirements
Specific to Methods B and C.
 See Tables 407.1.ABC.3.2B,
407.1.ABC.3.2D, and 408.1.ABC.3.2E
through 408.1.ABC.3.2G.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 409 VENTILATION
 409.1.ABC.2 Building Pressures.
 With respect to outdoors
 409.1.ABC.3.1 Stair and Shaft Vents.
 Motorized dampers, automatically closing
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 409 VENTILATION
 409.1.ABC.3.2 Gravity Hoods,
Vents, and Ventilators.
 Automatic shutoff
 Exceptions:
 Gravity acceptable in buildings less than 3
stories
 Ventilation for unconditioned spaces
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 409 VENTILATION
 409.1.ABC.3.3 Shutoff Damper
Controls.
 Automatic shutoff
 Capable of automatically shutting off
during building warmup/cooldown
 Exception:
 Gravity acceptable
 Gravity acceptable with design intake or exhaust
capability of 300 cfm or less
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 409 VENTILATION
 409.1.ABC.3.4 Dampers.
 Where outdoor air supply and exhaust air
dampers are required by Section
409.1.ABC.3, they shall have a maximum
leakage rate at 1 in. w.g. of 4 cfm per
square foot of damper area for motorized
dampers when tested in accordance with
AMCA Standard 500 as indicated in Table
409.1.ABC.3.3.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 409 VENTILATION
 409.1.ABC.3.5 Ventilation Controls for
High-Occupancy Areas.
 Outside air capacities greater than 3000
cfm serving areas having an average
design occupancy density exceeding 100
people per 1000 ft2 shall include means
to automatically reduce outside air intake
below design rates when spaces are
partially occupied
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 409 VENTILATION
 409.1.ABCD.3.6.2 Fume Hoods.
 If less than 15,000 cfm, shall include one
of:
1. Variable air volume hood exhaust and room
supply systems capable of reducing exhaust
and makeup air volume to 50% or less of
design values.
2. Direct makeup (auxiliary) air supply
3. Heat recovery system to pre-condition air
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.1.1 Air System Design and
Control.
 HVAC systems having a total fan system
power exceeding 5 hp shall meet the
provisions of Table 410.1.ABC.1.1.1 and
Section 410.1.ABC.1.1.2
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.1.1.1 Fan Power Limitation.
 Limited by:
 Ratio does not exceed Table 410.1.ABC.1.1.1
 Where air treatment/filtering system used,
allowable fan system power may be adjusted
(equation)
 Temperature differences at cooling design
conditions larger than 20º F, allowable fan
power may be adjusted (equation)
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.1.1.2.1 Part-Load Fan Power
Limitation.
 VAV fans with motors greater than 30 hp
shall meet one of the following:
1. Driven by a mechanical/electrical variable drive
2. Vane-axial fan with variable-pitch blades
3. Controls and devices that will result in fan
motor demand of no more than 30% of design
wattage at 50% of design air volume when
static pressure set point equals one-third of the
total design static pressure, based on
manufacturer's certified fan data
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.1.1.2.2 Static Pressure Sensor
Location.
 Controller set point is no greater than one-third
the total design fan static pressure
 410.1.ABC.1.1.2.3
 Multiple sensors may be required
 410.1.ABC.1.1.2.3 Set Point Reset.
 If required static pressure set point shall be reset
based on the zone requiring the most pressure
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.2 Air Distribution System
Insulation.
 410.1.ABC.2.1 General.
 Insulation shall be protected from damage,
including that due to sunlight, moisture,
equipment maintenance, and wind, but not
limited to the following:
 Insulation expected to weather
 Insulation covering chilled water piping,
refrigerant suction piping, or cooling ducts
located outside the conditioned space
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.2.2. Insulation Required.
 Supply/return ducts with Table 410.1.ABC.2.2
 Exceptions:
 Factory sealed
 Ducts located in conditioned spaces
 Runouts less than 10 ft, R-value not to exceed 4.2
 Exposed to conditioned or indirectly conditioned
spaces with face areas larger than 5 ft2—need not
exceed R-2
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 Table 410.1.ABC.2.2 "Minimum Insulation
Levels Air Distribution System Components"
 Footnotes:
1. Roof R-value specified is of the insulation only.
2. Includes crawl spaces, both ventilated and non-
ventilated.
3. Includes return air plenums with or without
exposed roofs above.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.3.0.3 Space Provided.
 A minimum of 4" is considered sufficient
space around air handling units.
 Exception: Retrofit or replacement units not
part of a renovation are exempt from the
minimum clearance requirement.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.3.2.2 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
410.1.ABC.3.0.6.
Note: (Same for Residential)
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS
 410.1.ABC.4.1 Duct Leakage Tests.
 Air distribution systems shall be tested, adjusted, and
balanced by an engineer licensed in this state or a
company or individual holding a current certification
from a recognized testing and balancing agency
organization.
 Exceptions:
 Less than 15 tons, mechanical contractor
 Capacities less than 65,000 Btu/h per system are exempt from
requirements of this section
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 410 AIR DISTRIBUTION SYSTEMS

 410.1.ABC.4.2 General.
 Construction documents shall require that
a written balance report be provided to the
owner or the designated representative of
the building owner for HVAC systems
serving zones with a total conditioned area
exceeding 5000 ft2.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 411 PUMPS AND PIPING
 411.1.ABC.1 Hydronic System Design and
Control.
 Total pump system power less than 10 hp shall
meet provisions in Sections 411.1.ABC.1.1
through 411.1.ABC.1.4
 411.1.ABC.1.1 Hydronic Variable Flow Systems.
 Pumping systems, where applicable, shall be
capable of reducing pump flow to 50% of design
 Individual pump requirements
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 411 PUMPS AND PIPING
 411.1.ABC.1.2 Pump Isolation.
 Provisions for flow control in chilled water plants
 411.1.ABC.1.3 Chilled and Hot Water
Temperature Reset Controls.
 Those exceeding 300,000 Btu/h
 Exceptions:
 Where controls cause improper operation
 Hydronic systems that use variable flow to reduce
pumping energy
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 411 PUMPS AND PIPING
 411.1.ABC.2 Piping Insulation.
 Piping shall be thermally insulated in
accordance with Table 411.1.ABC.2 (revised)
 Exceptions:

 Factory-installed
 Piping fluids with an operating temperature range from
60º F and 105º F
 Heat gain/loss not increase in energy use
 Less than 4 ft length piping between shutoff valve and
coil
 Unions in heating systems
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 412 WATER HEATING SYSTEMS

 412.1.ABC.1 Water Heater Sizing and
Design.
 412.1.ABC.2 Service Water Heating
System Controls.
 412.1.ABC.2.1 Temperature Controls.
 Temperature adjustment from 120º F or lower
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 412 WATER HEATING SYSTEMS
 412.1.ABC.2.2 Temperature Maintenance
Controls.
 Recirculating hot water systems or heat trace,
shall be equipped with automatic time switches
or other controls
 412.1.ABC.2.3 Circulating Pump Controls.
 Maintain storage tank water temperature
limiting operation to a maximum of five
minutes after the end of the heating cycle
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 412 WATER HEATING SYSTEMS
 412.1.ABC.2.4. Heat Traps.
 Required on inlet and outlet piping close to
storage tank on hot water distribution system
 A device specifically designed for the purpose
or an arrangement of tubing that forms a loop
of 360 degrees or piping that from the point of
connection to the water heater (inlet or outlet)
includes a length of piping directed downward
before connection to the vertical piping of the
supply water
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 412 WATER HEATING SYSTEMS
 412.1.ABC.2.6.1 Time Switches.
 Time switches shall be installed on swimming pool
heaters and pumps (Exceptions)
 412.1.ABC.2.6.2 Pool Covers.
 Required on heated pools
 Exception: Pools deriving over 60% of the energy for heating
from site-recovered energy or solar energy source.
 412.1.ABC.2.6.3 Pool Heaters.
 On-off switch
 Natural gas shall not have continuously burning pilot
lights
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 412 WATER HEATING SYSTEMS

 412.1.ABC.3.1 Equipment Efficiency.
 Shall meet the criteria listed in Table
412.1.ABC.3.
 Exception: Water heaters and hot water
boilers more than 140 gal of storage capacity
are not required to meet the standby loss (SL)
requirements of Table 412.1.ABC.3 when (3
criteria)
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 412 WATER HEATING SYSTEMS
 412.1.ABC.3.4.1 Space Heating and
Water Heating.
 Gas-fired or oil-fired space heating boiler
system must either:
 Meets standby loss requirement
 Satisfies building official that the system will
consume less energy than separate units
 Energy input is less than 150K Btu/h
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS
SECTION 412 WATER HEATING
SYSTEMS
 412.1.ABC.4 Service Hot Water Piping
Insulation.
 The following piping shall be insulated to levels
shown in Table 411.1.ABC.2:
1. Recirculating system piping, including the supply and
return piping of a circulating tank type water heater.
2. The first 8 ft of outlet piping for a constant
temperature nonrecirculating storage system.
3. The inlet pipe between the storage tank and a heat
trap in a nonrecirculating storage system.
4. Pipes that are externally heated (such as heat trace
or impedance heating).
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 413 ELECTRIC POWER
 413.1 Prescriptive Requirements.
 Voltage drop sizing
 Completion requirements: drawings and
operating and maintenance manual
required
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 414 MOTORS
 414.1.ABC.1 Electric Motors.
 Electric motors shall comply with the
requirements of the Energy Policy Act of
1992 where applicable, as shown in Table
414.1.ABC.1.
 Motors that are not included in the scope
of the Energy Policy Act have no
performance requirements in this section.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.0 Applicability.
 This section shall apply to the following:
1. Interior spaces of buildings;
2. Exterior building features, including facades,
illuminated roofs, architectural features,
entrances, exits, loading docks, and illuminated
canopies; and
3. Exterior building grounds lighting provided
through the building‘s electrical service.
4. Exceptions for emergency lighting, life or safety
lighting, lighting in dwelling units, and
decorative gas lighting.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.1.ABC.1 Controls.
 415.1.ABC.1.1 Automatic Lighting
Shutoff.
 Interior lighting in buildings larger than
5000 ft² shall be controlled with an
automatic control device to shut off
building lighting in all spaces.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.1.ABC.1.2 Space Control.
 Shall independently control general lighting
to:
1. Control a maximum of 2500 ft2 area for a space
10,000 ft2 or less and a maximum of 10,000 ft2
area for a space greater than 10,000 ft2, and
2. Be capable of overriding any time-of-day
scheduled shutoff control for no more than four
hours.
3. Each manual control device shall be readily
accessible and located so the occupant can see the
controlled lighting
 Exception: Remote location shall be permitted for reasons
of safety or security
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.1.ABC.1.3 Additional Controls.
 Controls are required in the following cases:
1. Display or Accent Lighting
2. Case lighting
3. Hotel/motel guest lighting
4. Task
5. Non-visual
6. Demonstration
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.1.ABC.1.4 Exterior Lighting Control.
 Exterior applications not exempted under 415.0
and 415.2.ABC.1.3 shall be controlled by a
photosensor or astronomical time switch
(Exception for safety/security)
 415.1.ABC.2 Exterior Building Grounds
Lighting.
 Greater than 100 watts shall contain lamps
having a minimum efficacy of 60 lm/W unless
the luminaire is controlled by a motion sensor
or qualifies for one
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.1.ABC.3 Tandem Wiring.
 One or three linear fluorescent lamps
greater than 30W each shall use two-lamp
tandem-wired ballasts (six Exceptions)
 415.1.ABC.4 Exit Signs.
 Exit sign luminaries operating at greater
than 20 watts shall have a minimum
source efficacy of 35 lm/W
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.ABC.1 Performance Calculation
Procedures, General.
 Building area method described in
Section 415.2.C.1 or the space-by-space
method described in Section 415.2.B.1
 Installed lighting power shall not exceed
interior lighting power allowance
…continued on next slide
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.ABC.1 Performance Calculation Procedures,
General. (cont'd)
 Exceptions: Lighting that is integral to:
1. Galleries, museums, and 8. Retail display windows, provided the
monuments display area is enclosed by ceiling-height
partitions
2. Equipment or instrumentation
9. Interior spaces specifically designated as
3. Medical equipment a registered interior historic landmark
4. Enclosed refrigerator and 10. Advertising or directional signage
freezer cases 11. Exit signs
5. Food warming and food 12. Sale or lighting educational
preparation equipment demonstration systems
6. Plant growth or maintenance 13. Lighting for theatrical purposes, including
7. Spaces specifically designed for performance, stage, video, film
use by the visually impaired 14. Casino gaming areas.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.ABC.1.1 Installed Interior
Lighting Power.
 The installed interior lighting power shall
include all power used by the luminaires,
including lamps, ballasts, current
regulators, and control devices except as
specifically exempted in Section
415.2.ABC.1.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.ABC.1.2 Luminaire Wattage.
 Determined for the following conditions by:
1. Incandescent or tungsten-halogen luminaires with medium screw
base sockets shall be the maximum labeled wattage
2. Luminaires with permanently installed or remote ballasts or
transformers shall be the operating input wattage of the maximum
lamp/auxiliary combination
3. Line-voltage lighting track and plug-in busway shall be the
specified wattage of the luminaries included with a minimum of 30
W/lin ft.
4. The wattage of low-voltage lighting track, cable conductor, rail
conductor, and other flexible lighting systems that allow the
addition and/or relocation of luminaires without altering the wiring
of the system shall be the specified wattage of the transformer
supplying the system.
5. The wattage of all other miscellaneous lighting equipment shall be
the specified wattage of the lighting equipment.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.ABC.1.3 Exterior Building
Lighting Power.
 The exterior building facade lighting power
shall not exceed 0.25 W/ft2 of the
illuminated area.
 Exterior lighting for all applications (except
those included in the Exceptions to
Sections 415.0 and 415.2.ABC.1.3) shall
comply with the requirements of Section
415.1.ABC.2.
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.B.1 Space-by-Space Method of
Calculating Interior Lighting Power
Allowance. (FLA/COM steps)
1. Table 415.2.B
2. 80% partition height requirement
3. ILPA = Sum of lighting power allowances
for all spaces
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.B.2 Additional Interior Lighting Power.
 An increase in the interior lighting power allowance is
permitted in the following cases:
1. Purpose of decorative appearance, for highlighting
exhibits, provided the additional power not exceed
1.0 W/ft2 of such spaces
2. Visual display terminals, provided that the additional
lighting not exceed 0.35 W/ft2
3. Lighting designed to highlight merchandise, provided
the additional power not exceed:
1. 1.6 W/ft2 times the area of specific display or
2. 3.9 W/ft2 times the area of specific display for valuable
merchandise such as jewelry
SUB-CHAPTER 4, COMMERCIAL BUILDING COMPLIANCE METHODS

SECTION 415 LIGHTING
 415.2.C.1 Building Area Method of Calculating
Interior Lighting Power Allowance.
1. Determine building area type from Table 415.2.C.1 and
allowed power density from the building area method
column
2. Determine gross lighted floor area by building area type
3. Multiply the gross lighted floor areas of the building area
times the lighting power density. Sum for all building
types.
4. Trade-offs among building area types are permitted
provided that the total installed interior lighting power
does not exceed the interior lighting power allowance.
SUB-CHAPTER 6, RESIDENTIAL
BUILDING COMPLIANCE METHODS
 All references in this sub-chapter have been
changed to reflect 2004 versions of Compliance
Forms (04) and FLA/RES-04.
 References for online access to compliance forms
have been added www.floridabuilding.org
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS

SECTION 601 FENESTRATIONS
 601.1.ABC.1 Glazing Types.
 Windows shall contain at least the
minimum efficiency glazing type certified
by the owner to be in compliance with the
code.
 Default U-factor and Solar Heat Gain
Coefficient (SHGC) shall be assumed per Table
601.1.ABC.1 if windows are not labeled.
TABLE 13-601.1.ABC.1
DEFAULT WINDOW ENERGY VALUES FOR RESIDENTIAL APPLICATIONS

SOLAR HEAT GAIN
TYPE U-FACTOR COEFFICIENT
(SHGC)
Single pane, clear 1.30 0.75

Single pane, tint 1.30 0.64
Double pane,
0.87 0.66
clear
Double pane, tint 0.87 0.55
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 607 SPACE COOLING SYSTEMS

 607.1.ABC.1.1 Cooling Equipment
Capacity.
 Added Exceptions:
 Cooling capacity is less than the calculated
total sensible load but not less than 80% of
that load
 Florida-registered engineer in accordance with
good design practice.
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 607 SPACE COOLING SYSTEMS

 607.1.ABC.3.1.1 Equipment
Efficiency Verification.
 If covered in Tables 607.1.ABC.3.2A –
607.1.ABC.3.2D, then listed or verified
 If doesn‘t exist, then provided by
manufacture
 Not rated, FL-registered engineer shall
provide
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 607 SPACE COOLING SYSTEMS
 607.1.ABC.3.2.1 Mandatory Provisions.
 Tables 607.1.ABC.3.2A through 607.1.ABC.3.2D contain
the minimum efficiency requirements for equipment
covered by this section of the code. The tables are
organized to cover the following types of equipment:
 Table 607.1.ABC.3.2A Air Conditioners and
Condensing Units
 Table 607.1.ABC.3.2B Heat Pumps
 Table 607.1.ABC.3.2D Packaged Terminal and
Room Air Conditioners and
Heat Pumps
…continued
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 607 SPACE COOLING SYSTEMS
 607.1.ABC.3.2.1 Mandatory Provisions.
 Equipment shown in Tables 607.1.ABC.3.2A
through 607.1.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.
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 608 SPACE HEATING SYSTEMS
 608.1.ABC.3.2 Minimum Efficiencies for
Heating Equipment.
 The tables are organized to cover the following types
of equipment:
 Table 607.1.ABC.3.2B Heat Pumps

 Table 607.1.ABC.3.2D Packaged Terminal Air

Conditioners and Heat
Pumps
 Table 608.1.ABC.3.2E Furnaces, Duct

Furnaces, and Unit
Heaters
 Table 608.1.ABC.3.2F Gas- and Oil-Fired

Boilers
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 610 AIR DISTRIBUTION SYSTEMS

 610.1.ABC.3.0.3 Space Provided.
 Exception: Retrofit or replacement units
not part of a renovation are exempt from
the minimum clearance requirement.
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 610 AIR DISTRIBUTION SYSTEMS

 610.1.ABC.3.2.2 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
610.1 ABC.3.0.6.
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 610 AIR DISTRIBUTION SYSTEMS

 610.1.A.1 Airtight Duct Credit.
 Air leakage to outdoors no greater than 3 cfm
per 100 square feet of conditioned floor area
and distribution system total air leakage to
indoors
 And outdoors no greater than 9 cfm per 100
square feet of conditioned floor area at a
pressure differential of 25 Pascal (0.10 in. w.c.)
across the entire air distribution system,
including the air handler enclosure
 By a State approved performance tester
SUB-CHAPTER 6, RESIDENTIAL BUILDING COMPLIANCE METHODS
SECTION 610 AIR DISTRIBUTION SYSTEMS

 610.1.B.2 Air handler location.
 Buildings complying with this code by Compliance
Method B shall not have air handlers installed in attics.
 610.2.A.3 Airtight Duct Credit.
 An airtight Duct Credit Multiplier of 1.0 may be taken if
the duct work has been demonstrated to be
‗substantially leak free‘ in accordance with the
provisions of Section 610.1.A.1.
2004 Florida Building Code, Residential
 The following chapters have provisions for
residential construction and should be review
(detailed overview provided in the Florida Building
Code, Residential Core and Summary)
 Chapter 13: General Mechanical System
Requirements
 Attics
 Installation—wind requirements
 Hydrogen
 Clearance requirements
2004 Florida Building Code, Residential
 Chapter 14: Heating & Cooling
Requirements
 Drain pipe materials and size
 Chapter 15: Exhaust
 1501 Clothes Dryers
 1502 Range Hoods
 Kitchen exhaust rates
 1503 Microwave Ovens
 1504 Overload Exhaust
 1506 Mechanical Ventilation
 Table of minimums
2004 Florida Building Code, Residential
 Chapter 16: Duct Systems
 1601 Duct Construction—similar to Florida
Building Code, Mechanical, Chapter 6
 1602 Return Air—Balanced return

 Chapter 17: Combustion Air
 1701 General
 Florida Building Code, Mechanical 703
 1702 All Air From Inside the Building
 1703 All Air From Outdoors