HomeMy WebLinkAbout021 - 02/04/2014 - AMENDING CHAPTER 5, ARTICLE IV OF THE CITY CODE FOR THE PURPOSE OF REPEALING THE 2009 INTERNATIONAL ORDINANCE NO. 021, 2014
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5, ARTICLE IV OF THE CODE OF THE CITY OF FORT
rCOLLINS FOR THE PURPOSE OF REPEALING THE 2009 INTERNATIONAL
MECHANICAL CODE(IMC), AND ADOPTING THE 2012 INTERNATIONAL
MECHANICAL CODE, WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS, upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2012 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart,codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2012 publications contain improvements in construction code regulation;
and
WHEREAS, City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals; and
WHEREAS, the adoption of the fve interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2009 International Mechanical Code, as
amended be repealed and that in its place, the 2012 International Mechanical Code be adopted,
with amendments.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows:
Section 1. That Section 5-106 of the Code of the City of Fort Collins is hereby
amended to read as follows:
Sec. 5-106. Adoption of standards.
Pursuant to the power and authority conferred on the City Council by Section 31-16-202,
C.R.S, and Article 11, Section 7 of the Charter, the City Council hereby repeals the 2009
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International Mechanical Code (2009 IMC) and adopts, as the mechanical code of the City, the
2012 International Mechanical Code, (2012 IMC), published by the International Code Council,
which shall have the same force and effect as though set forth in full herein. The subject matter
of the 2012 International Mechanical Code, (2012 IMC) , adopted herein includes
comprehensive provisions and standards regulating and controlling the design, construction,
installation, quality of materials, location, operation and maintenance of heating, ventilating,
cooling and refrigeration systems, incinerators, miscellaneous heat-producing appliances for the
purposes of protecting public health, safety and general welfare.
Section 2 . That Section 5 - 107 Code of the City of Fort Collins is hereby repealed and
reenacted to read in its entirety as follows :
Sec. 5407. Amendments and deletions to code.
The 2012 INTERNATIONAL MECHANICAL CODE adopted herein is hereby amended in the
following respects :
( 1 ) Section 101. 1 Title is hereby amended to read as follows :
" 101 . 1 Title. These regulations shall be known as the Mechanical Code of the City of
Fort Collins, hereinafter referred to as "this code. "
(2) Section 102. 8 Referenced codes and standards, is amended to read as follows :
"Section 102.8 reference codes and standards The codes and standards referenced
herein shall be those that are listed in Section 101 .4 of the adopted International Building
Code, entitled ` Referenced Codes '_and shall be considered part of the requirements of
this code to the prescribed extent of each such reference. "
Exception : Where enforcement of a code provision would violate the conditions of the
listing of the equipment or appliance, the conditions of the listing and the manufacturer' s
installation instructions shall apply.
(3 ) Section 103 Department of Mechanical Inspection is hereby amended in its entirety to
read as follows :
"SECTION 103 — CODE ADMINISTRATION
103 . 1 Entity charged with code administration shall be as determined in accordance
with Section 103 of the adopted International Building Code, entitled ` Code
Administration' . "
(4) Section 106. 5 Fees is hereby amended in its entirety to read as follows :
"SECTION 106.5 FEES
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106.5 Payment of fees. All items relating to fees shall be as specified in Section 109 of
the adopted International Building Code," entitled `Fees'."
(5) Section 107.3 Testing and verification is hereby amended to read as follows:
"107.3 Testing and verification. Installed heating, cooling and ventilation systems shall
be performance-tested by an approved agency and adjusted to operate within design
specifications, in accordance with ANSUACCA QI 5-2010 HVAC Quality Installation
Specification. Documentation of results shall be submitted to the building official prior to
approval
Exception: Buildings subject to commissioning requirements in Section 3604.1 of the
2012 International Building Code as amended."
(6) Section 108.4 Violation Penalties, is hereby amended to read as follows:
"108.4 Violation penalties. Persons who violate a provision of this code or fail to
comply with any of the requirements thereof or who erect, install, alter or repair a
mechanical work in violation of the approved construction documents or directive of the
code official, or of a permit or certificate issued under the provisions of this code, shall be
guilty of a misdemeanor and shall be subject to the penalties and fines specified in
Section 1-15 of the City Code."
"108.4.1 Work commencing before permit issuance. In addition to the penalties set
forth in 108.4, any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas,
mechanical or plumbing system that is not otherwise exempted from obtaining a permit,
shall be subject to a fine in addition to the standard prescribed permit fee. Said fine shall
be equal in amount to the permit fee, except that it shall not be less than $50 nor more
than $1,000 for the first such violation. A person or firm committing the same such
violation repeatedly shall be subject to a fine equal to double the amount of the permit fee
or double the amount of the fee imposed for the preceding violation, whichever is greater,
for every such subsequent violation committed within 180 days of a previous violation.
Said fines may be appealed to the City Manager pursuant to Chapter 2, Article VI of the
City Code."
(7) Section 109 Means of Appeal is hereby amended in its entirety to read as follows:
"109.1 General. Appeals of decisions, determinations and interpretations of this code
shall be made pursuant to the applicable provisions of Section 113 of the adopted
International Building Code, entitled `Board of Appeals'."
(8) Section 202 GENERAL DEFINITIONS, is hereby amended to add the following
definitions in alphabetical sequence as follows:
"Multifamily. Any building housing group R-1, R-2 or R-4 occupancies.
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Whole-dwelling unit mechanical ventilation system. An exhaust system, supply system,
or combination thereof that is designed to mechanically exchange indoor air for outdoor
air when operating continuously or through a programmed intermittent schedule to satisfy
the whole-dwelling ventilation rate ."
(9) Section 304. 3 Elevation of ignition source is hereby amended to read as follows and by
deleting the exception:
"304.3 Elevation of ignition source. Electrical devices, equipment and appliances
having an ignition source and located in hazardous locations and public garages, private
garages, repair garages, automotive motor fuel-dispensing facilities and parking garages
shall be elevated such that the source of ignition is not less than 18 inches (457 mm)
above the floor surface on which the equipment or appliance rests . For the purpose of this
section, rooms or spaces that are not part of the living space of a dwelling unit and that
communicate directly with a private garage through openings shall be considered to be
part of the private garage.
( 10) Section 312 Heating and Cooling load calculations is hereby amended to read as
follows :
"312. 1 Heating and cooling load calculations. Heating and cooling system design loads
for the purpose of sizing systems, appliances and equipment shall be determined in
accordance with the adopted International Energy Conservation Code. "
( 11 ) Section 407 Whole-dwelling unit ventilation is hereby added to read as follows :
Section 407 WHOLE DWELLING UNIT VENTILATION
"407. 1 Whole-dwelling unit mechanical ventilation system . For new buildings, a
mechanical exhaust system, supply system, or combination thereof shall be installed for
each dwelling unit to provide whole-dwelling unit ventilation. Such system shall comply
with Sections 407 . 1 . 1 through 407 . 5 .
407. 1 . 1 Whole-dwelling unit ventilation rate, The dwelling unit mechanical ventilation
system shall provide outdoor air at a continuous rate of not less than that determined in
accordance with Table M 1507 . 3 . 3 ( 1 ) .
Exception .
The whole-dwelling unit mechanical ventilation system is permitted to operate
intermittently where the system has controls that enable operation for not less than 25 -
percent of each 4-hour segment and the ventilation rate prescribed in IRC Table
M1507 . 3 . 3 ( 1 ) is multiplied by the factor determined in accordance with IRC Table
M1507 . 3 . 3 (2) .
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TABLE M1507.3.3(1)
CONTINUOUS WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM AIRFLOW RATE REQUIREMENTS
DWELLING UNIT NUMBER OF BEDROOMS
FLOOR AREA 0-1 1 2-3 1 4-5 1 6-7 1 >7
(square feed Airflow in CFM
< 1,500 30 45 60 75 90
1.501-3,000 45 60 75 90 105
3,001-4,500 60 75 90 105 120
4.501-6,000 75 90 105 120 135
61001-7,500 90 105 120 135 150
>7,500 105 120 135 150 165
For SI: 1 square foot=0-0929 mr,.1 cubic Pont per mute=0.0004719 mrh.
TABLE M1507.3.3(2)
INTERMITTENT WHOLE-HOUSE MECHANICAL VENTILATION RATE FACTORS"
RUN-TAME PERCENTAGE IN EACH 4-HOUR 26% 33% SU% 66% 75% IW%
SEGMENT
Fant7e 1 4 1 3 1 2 1 1.5 1.3 1.0
a For verru a wn system mu Ilme values between those given,the facmts am Permlded to be determined by mmrPolahon.
b. ExtmpolatIm beyond the table Is pmtablted.
407.2 System design. The design of the required whole dwelling unit ventilation system
shall comply with the requirements of this Section. System design documents shall be
submitted, as required by the building official, at the time of application for a building
permit.
407.2.1 System type. The system shall consist of one or more supply or exhaust fans, or
a combination thereof, and associated ducts and controls. Exhaust fans shall be permitted
to be part of a mechanical exhaust system. Outdoor air ducts connected to the return duct
of a forced air furnace shall be considered to provide supply ventilation and shall be sized
to provide adequate mechanical ventilation in accordance with ASHRAE 62.2 and shall
meet the manufacturer's requirements for minimum return air temperature to the furnace
heat exchange. ' ,
407.2.2 Outdoor air intakes. Outdoor air intakes shall have automatic dampers that
close when the ventilation system is not operating.
407.2.3. Exhausts. Exhausts shall have gravity dampers that close when the ventilation
system is not operating.
407.2.4 Air Circulation fan motors. Motors for air circulation fans used in the
ventilation system, rated at one-quarter horsepower or greater, shall meet at least one of
the following criteria:
1. Where the furnace serves as an air handler for the ventilation system, the furnace
shall be certified as an "Electrically Efficient Furnace" by the Air-conditioning,
Heating and Refrigeration Institute(AHRI).
2. The blower motor shall be specified as a `Brushless DC" (BL or BLDC) motor by
the manufacturer.
i
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3. The blower motor shall be specified as "Brushless Permanent Magnet" (BPM)
motor.
4. The blower motor shall be specified as "Electronically Commutated Motor
(ECM)".
5. The blower shall meet equivalent criteria acceptable to the building ol cial.
407.2.5 System controls. The mechanical ventilation system shall be provided with
readily accessible and labeled controls that enable occupant override.
407.2.6 Sound ratings for fans. Whole-dwelling unit ventilation fans shall be rated for
sound at a maximum of 1.5 sones, in accordance with the procedures of the Home
Ventilating. Institute (HVI 915, Procedure for Loudness Rating of Residential Fan
Products).
Exception:
Heating, ventilating and air conditioning air handlers and remote-mounted fans need
not meet sound requirements. To be considered for this exception, a remote-mounted
fan must be mounted outside the habitable spaces, bathrooms, toilets and hallways,
and there must be at least 4 ft (1 m) of ductwork between the fan and the intake grille.
407.3 System installation. The installation of the whole-dwelling unit ventilation system
and equipment shall be carried out in accordance with the manufacturers' design
requirements and installation instructions.
407.4 Performance verification. Performance of installed mechanical ventilation
systems shall be verified in accordance with Section 107.3.
407.5 Multifamily buildings. In multifamily buildings, all doors between dwelling units
and common hallways shall be gasketed or otherwise substantially airtight with weather
stripping, except when the ventilation system explicitly requires transfer of air from
corridors into units."
(12) Section 504.1 Installation is hereby amended to read as follows and by deleting the
exception:
"504.1 Installation. Clothes dryers shall be exhausted in accordance with the
manufacturer's instructions. Dryer exhaust systems shall be independent of all other
systems and shall convey the moisture and any products of combustion to the outside of
the building. Dryer exhaust duct terminations shall not be located within 36 inches (914
mm) of exterior openings into conditioned spaces, crawl spaces, and attic spaces."
(13) Section 504.6.4.2 Manufacturer's instructions, is amended by deleting in its entirety:
(14) Section 505.2 Makeup air required is hereby amended to read as follows:
"505.2 Makeup air required. Exhaust hood systems capable of exhausting in excess of
400 cfm (0.19 m3/s) shall be provided with makeup air at a rate approximately equal to
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the exhaust air rate. Such makeup air systems shall be equipped with a means of closure
and shall be automatically controlled to start and operate simultaneously with the exhaust
system. Exhaust air rate required shall be calculated based on the total BTU's of the gas
appliance beneath the hood at a ratio of 100 BTU's to 1 CFM."
(15) Section 512.1 General is hereby amended to read as follows:
"512.1 General. When a subslab soil exhaust system is provided, the duct for such
system shall conform to the requirements of Section 1211 of the adopted International
Building Code, entitled `Radon-Resistant Construction'."
(16) Section 602.3 Stud cavity and joist space plenums, is hereby deleted in its entirety:
(17) Section 602.3 Building cavities (Mandatory) is hereby added to read as follows:
"Section 602.3 Building cavities (Mandatory) Building framing cavities shall not be
used as ducts or plenums."
(18) Section 602.3.1 Return air is hereby added to read as follows:
"Section 602.3.1 Return air. Return air shall be taken from inside the dwelling. Dilution
of return air with outdoor air shall be permitted. A return air path shall be provided in all
habitable rooms by means of ducts or transfer grills."
(19) Section 603.18.3 Construction debris and contamination is hereby added to read as
follows:
"603.18.3 Construction debris and contamination. Mechanical air-handling systems
and their related ducts shall be protected from the entrance of dirt, debris, and dust during
the construction and installation process. Prior to passing final inspection or issuance of a
Certificate of Occupancy, such systems shall be substantially free of construction-related
contaminants."
(20) Section 60Z4 Access and identification is hereby amended to read as follows:
"607.4. Access and identification Fire and smoke dampers shall be provided with an
approved means of access, large enough to permit inspection and maintenance of the
damper and its.operating parts. The access shall not affect the integrity of fire-resistance-
rated assemblies. The access openings shall not reduce the fire-resistance-rating of the
assembly. Access points shall be permanently identified on the exterior and readable
without the removal of finish ceiling works by a label having letters not less than 0.5 inch
(12.7 mm) in height reading: SMOKE DAMPER or FIRE DAMPER. Access doors in
ducts shall be tight-fitting and suitable for the required duct construction."
(21) Section 801.19 Multi-story prohibited is hereby amended to read as follows:
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"801.19 Multi-story prohibited. Common venting systems for appliances located on
more than one floor level shall be prohibited, except engineered systems where all of the
appliances served by the common vent are located in rooms or spaces that are accessed
only from the outdoors. The appliance enclosures shall not communicate with the
occupiable areas of the building."
(22) Section 903.1.1 Solid fuel fireplaces and appliances is added to read as follows:
"903.1.1 Solid fuel fireplaces and appliances. Solid fuel fireplaces, fireplace stoves and
solid-fuel-type room heaters shall also comply with Section 5-110 of the City Code."
(23) Section 903.3 Unvented gas logs heaters, is deleted in its entirety:
Introduced, considered favorably on first reading, and ordered published this 21st day of
January, A.D. 2014, and to be presented for final passage on the 4th day of February, A.D. 2014.
[O R T C��C M2 �LP� �.Zf.CJuc eKA�C
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ATTEST: N
SEAL
PtORP
City Clerk
Passed and adopted on final reading on the 4th day of February, A.D. 2014.
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ATTEST: G`�y OF FO,4�
:moo
City Clerk o< '
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