HomeMy WebLinkAboutOrd2013-004 Sponsored by: Hunt
Introduction Date: April 8, 2013
Public Hearing Date: April 22, 2013
Postponed to: May 13, 2013
lb w Additional Public Hearing: May 13, 2013
Enactment Date: May 13, 2013
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF SEWARD,
ALASKA, AMENDING SEWARD CITY CODE, SECTION 12.05.031,
INTERNATIONAL MECHANICAL CODE, ADOPTING THE 2012
INTERNATIONAL MECHANICAL CODE (IMC) INCLUDING REVISIONS
WHEREAS, as of the 16`" day of November 2012, the State of Alaska has adopted the 2009
Edition of the International Mechanical Code (IMC); and
WHEREAS, revisions the State of Alaska makes to the IMC affects the City of Seward's
deferral from the State of Alaska; and
WHEREAS, the 2012 edition of the IMC is currently being reviewed by the State of Alaska
for proposed adoption in 2013; and
WHEREAS, the proposed amendments to the IMC are proposed by the State of Alaska and
the City of Seward; and
WHEREAS, the proposed amendments are consistent with the scope of providing a safe
place to work and live for the citizens of the City of Seward.
NOW THEREFORE, THE CITY COUNCIL OF THE CITY OF SEWARD, ALASKA,
HEREBY ORDAINS that:
Section 1. The asterisks note changes made by the State of Alaska to the IMC. These
asterisks are inserted for the benefit of the reader to indicate items which were changed by the State
and cannot be modified to be any less restrictive by the City of Seward. These marks will be
removed by the City Clerk before being codified.
Section 2. The Seward City Code Section 12.05.031 is deleted in its entirety and replaced
with the following:
12.05.031 International Mechanical Code - Adopted.
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
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a) The 2012 edition of the International Mechanical Code, including appendix chapters listed in j
subsection (b) below, published by the International Code Council is hereby designated and
shall be known as the Seward Mechanical Code and shall constitute the laws of the city
relating to mechanical systems. Although not published in full in this section, all of the
provisions of the International Mechanical Code and the appendices cited shall be and are
hereby adopted by reference to the same extent as if set forth in full herein, except to the
extent that the International Mechanical Code is amended by or in conflict with this code or
any relevant ordinance later adopted, in which case the provisions of this code shall apply.
b) The following revisions are made to the International Mechanical Code 2012 Edition,
hereinafter sometimes referred to as the IMC in its application as the Seward Mechanical
Code.
(1) The IMC Chapters 1 -15 and Appendix A (2012 edition) are adopted by reference to
regulate the design, installation, maintenance, alteration and inspection of mechanical
systems that are permanently installed and utilized to provide control of environmental
conditions and related processes within buildings, with the following revisions:
(2) *The IMC is revised by deleting all the references to the "ICC Electrical Code or
NFPA 70" and replacing them with "Electrical Code as adopted by 8 AAC 70.025, as
amended as of October 16, 2012 and as amended from time to time."
(3) *The IMC is revised by deleting all the references TO THE INTERNATIONAL
FUEL GAS CODE, with the exception of chapters 6 and 7 (of the "International Fuel
Gas Code ") and all references to the "International Plumbing Code" and replacing
them with "Plumbing Code as adopted by 8 AAC 63.010, as amended as of February
23, 2011 and as amended from time to time."
(4) Chapter 1 of the IMC is revised by deleting Sections 103, 104, 106 -108 and 110 and
references to the International Existing Building Code "IEBC" and the International
Energy Conservation Code "IECC."
(5) Chapter 1, Section 109 (Means of Appeal) of the IMC, is amended to reflect Seward
City Code (SCC) 9.15.112.
(6) *Chapter 3, Subsection 301.6 (Fuel gas appliances and equipment) of the IMC, is
revised by deleting the words "fuel gas distribution piping and equipment" and "fuel
gas fired appliance venting systems."
(7) *Chapter 3, Section 303.3 (Prohibited Locations) of the IMC, is revised by deleting
the words "of the International Energy Conservation Code" from the second sentence
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
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of exception 3.
(8) * Chapter 3, Subsection 304.9 (Clearances to combustibles construction) of the IMC,
is revised to read: "Clearances to combustible construction. Heat- producing
equipment and appliances must be installed to maintain the required clearances to
combustible construction as specified in the listing and manufacturer's instructions.
These clearances may be reduced only in accordance with Section 308 of the IMC.
Certain unlisted, heat - producing equipment shall be allowed if the equipment is
installed in a manner so as to maintain the clearances to combustible construction
specified in Table 308.6 "Clearance Reduction Methods ", of this Code. Clearances
to combustibles must include considerations as door swing, drawer pull, overhead
projections or shelving and window swing, shutters, coverings, and drapes. Devices
such as doorstops or limits, closers, drapery ties, or guards, may not be used to
provide the required clearances."
(9) Chapter 3, Subsection 304.9 of the IMC, is revised by amending Table 304.8 and
304.9 to read:
"Table 304.8 STANDARD INSTALLATION CLEARANCES, IN INCHES FOR
CERTAIN UNLISTED HEAT - PRODUCING APPLIANCES"
From Top
and Sides of
err Above Top Warm -air
of Casing or Bonnet or From Front From Back From Sides
Appliances Fuel Appliance Plenum (1) (6) (6)
Residential -Type
Furnaces -Floor for Solid 18(2) 18(2) 48 18 18
mounting on
combustible floors
Automatic 36 12 12 12
Oil or Comb.
Gas-Oil
Room Heaters (3) Oil or Solid 36 24 12 12
Circulating type
Radiant or other type Oil or Solid 36 36 36 36
Fireplace stove Solid 48(4) 54 48(4) 48(4)
Incinerators 36(5) 48 36 36
Domestic types
Commercial -type Low Heat Appl.
Unit Heaters Floor All Fuels 18 48 18 18
mounted any size
Other Low -Heat All Fuels 18 18 48 18 18
Industrial Appl.
Floor Mounted or
Suspended
Commercial Ind. Type Med Heat Appliances
Incinerators All sizes 48 96 36 36
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
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awl
"Table 304.9 CLEARANCES IN INCHES, WITH SPECIFIED FORMS OF
PROTECTION"
wira
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
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L TYPE OF
PROTECTION
Applied to the
Combustible Material
Unless Otherwise WHERE THE STANDARD CLEARANCE IN TABLE 304.8 WITH NO PROTECTION IS:
Specified and Covering
All Surfaces within the
Distance Specified as
the Required Clearance
with No Protection
36 Inches 18 Inches 12 Inches 6 Inches
(Thicknesses Are x25.4 for mm
Minimum)
x25.4 for mm Above Sides Chimney Above Sides Chimney Above Sides Chimney Above Sides Chimne■
and or Vent and or Vent and or Vent and or Vent
Rear Connector Rear Connector Rear Connector Rear Connector
1. 1/4 inch 30 18 30 15 9 12 9 6 6 3 2 3
insulating
millboard spaced
out one inch'
2. 0.013 inch 24 18 24 12 9 12 9 6 4 3 2 2
(No. 28
manufacturer's
standard gage) steel
sheet on 1/4 inch
insulating
illio millboard
3. 0.013 inch 18 12 18 9 6 9 6 4 4 2 2 2
(No. 28
manufacturer's
standard gage) steel
sheet spaced out
one inch'
4. 0.013 inch 18 12 18 9 6 9 6 4 4 2 2 2
(No. 28
manufacturer's
standard gage) steel
sheet on 1/8 inch
insulating
millboard spaced
out one inch'
5. 1'A inches 18 12 36 9 6 18 6 4 9 2 1 6
insulating cement
covering on heating
appliance
6. '/ inch 18 12 18 6 6 6 4 4 4 2 2 2
insulating
millboard on 1 inch
mineral fiber batts
reinforced with
F
i wire mesh or
""1 equivalent
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
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1. For appliances complying with Sections 304.2 and 304.3.
2. Except for the protection described in Item 5, all clearances shall be measured from
the outer surface of the appliance to the combustible material, disregarding any
intervening protection applied to the combustible material.
3. Spacers shall be of noncombustible material.
NOTE: Insulating millboard is a factory -made product formed of noncombustible
materials, normally fibers, and having a thermal conductivity of 1 BTU -inch per
square foot per degree Fahrenheit (1.73 W /(mK)) or less.
(10) *Chapter 3, Section 308.5 of the IMC, is revised by adding the following to the end
of the sentence: "and the manufacturers' specifications."
(11) * Chapter 3, Section 312.1 (Load Calculations) of the IMC, is revised by deleting the
words "using the design parameters specified in Chapter 3 of the International Energy
Conservation Code."
(12) *Chapter 4, Section 403.3 (Ventilation rate) of the IMC, the first sentence is revised
to read: "Ventilation systems must be designed to have the capacity to supply the
minimum outdoor airflow rate required in Table 403.3 "Minimum Ventilation
Rates" based in the occupancy of the space and the occupant load or other parameter
as stated herein, or in accordance with the American Society of Heating,
Refrigeration and Air Conditioning Engineers (ASHRAE) Standard 62 (2010
Edition) as adopted by reference."
(13) *Chapter 5, Section 514.1 (General) of the IMC, is revised by deleting the second
sentence and replacing it with "Energy recovery ventilation systems must be installed
according to the manufacturer's instructions and specifications."
(14) *Chapter 8, Section 804.1 (Direct vent termination) of the IMC, is revised by adding
a second sentence "Combustion vents for direct vent chambers are at least three foot
high or provide snowdrift prevention."
(15) *Chapter 9, Section 907.1 (General) of the IMC, is revised by adding a second
sentence to read "Commercial standard UL 2790 may be accepted as an alternative to
UL 791 and residential standard UL 508 and UL 698 may not be acceptable as an
alternative to UL 791."
(16) *Chapter 9 (Specific Appliances, Fireplaces and Solid Fuel - Burning Equipment) of
the IMC, is revised by adding Section 929 to read:
"SECTION 929 UNVENTED ROOM HEATERS.
929.1 General. Unvented room heaters shall be tested in accordance with American
National Standards Institute (ANSI) Z21.11.2 (2011 Edition), adopted by reference
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
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and may be installed in accordance with the conditions of the listing and the
manufacturer's installation instructions.
929.2 Prohibited use. One or more unvented room heaters may not be used as the
sole source of comfort heating in a dwelling unit.
929.3 Input rating. Unvented room heaters may not have an input rating in excess of
40,000 Btu/h (11.7 kW).
929.4 Prohibited locations. Unvented room heaters may not be installed within
Group A, E, or I Occupancies. These appliances may not be located in. or obtain
combustion air from, any of the following rooms or spaces:
(1) Sleeping Rooms;
(2) Bedrooms
(3) Toilet rooms;
(4) Storage closets;
(5) Surgical rooms.
Exceptions:
a. A single wall- mounted unvented room heater equipped with and oxygen
depletion safety shutoff system and installed in a bathroom provided the input
irimp rating does not exceed 6000 Btu per hour (1.76 kW) and the bathroom is not
a confined space.
b. A single wall- mounted unvented room heater equipped with and oxygen
depletion safety shutoff system and installed in a bedroom if the input rating
does not exceed 10,000 Btu per hour (2.93 kW) and the bedroom is not a
confined space.
929.5 Room or space volume. The aggregate input rating of all unvented appliances in
a room or space may not exceed 20 Btu/h per cubic foot of volume of the room or
space. Where the room or space in which the equipment is installed is directly
connected to another room or space by a doorway, archway, or other opening of
comparable size that cannot be closed, the volume of such adjacent room or space may
be permitted to be included in the calculations.
929.6 Oxygen- depletion safety system. Unvented room heaters shall be equipped
with an oxygen - depletion- sensitive safety shutoff system. The system shall shut off
the gas supply to the main and pilot burners when the oxygen in the surrounding
atmosphere is depleted to the percent concentration specified by the manufacturer,
j but not lower than 18 percent. The system may not incorporate field adjustment
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
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means capable of changing the set point at which the system acts to shut off the gas
supply to the room heater.
929.7 Unvented log heaters. An unvented log heater may not be installed in a
factory -built fireplace unless the fireplace system has been specifically tested, listed,
and labeled for the use in accordance with Underwriters Laboratories (UL) 127. ";
(17) *Chapter 10, Section 1001.1 (Scope) of the IMC, is revised, with the exceptions
remaining, to read: "Scope. This chapter governs the installation, alteration, and
repair of boilers, water heaters, and pressure vessels not subject to the provisions of
the department of labor and workforce development under AS 18.60.180- 18.60.395."
(18) Chapter 10, Section 1001 (General) of the IMC is revised by adding a new section
1001.2 to read: "Boilers, water heaters and pressure vessels installed in accordance
with this chapter shall be braced, anchored or strapped to resist falling or horizontal
displacement due to seismic activity or flooding conditions."
(19) *Chapter 10 of the IMC is revised by deleting Section 1011.
(20) *Chapter 14 (Solar Systems) of the IMC, is revised by deleting the body of the
chapter and inserting a new Section 1401 to read: "General. Solar energy equipment
and appliances must be installed in compliance with the Solar Energy Code as
adopted by 8 AAC 63.010, as amended as of February 3, 2011 and as amended from
time to time."
(21) *Chapter 15 (Reference Standards) of the IMC, is revised by adding or changing the
referenced standards from the publication date listed to the following edition, and
these standards are adopted by reference:
NFPA 13 -2013 Installation of Sprinkler Systems;
NFPA 72 -2013 National Fire Alarm Code
NFPA 96 -2011 Ventilation Control and Fire Protection of Commercial
Cooking Operations.
Section 3. The City of Seward shall possess three copies of the city designated edition of
the International Building Code for public use, inspection and examination.
Section 4. This ordinance shall take effect ten days following its enactment.
ENACTED by the City Council of the City of Seward, Alaska, this 22 day of April,
2013. a
THE CITY OF SEWARD, ALASKA
CITY OF SEWARD, ALASKA
ORDINANCE 2013 -004
Page 9 of 9
David Seaway , or
AYES: Valdatta, Bardarson, Keil, Shafer, Terry, Seaward
NOES: None
ABSENT: Casagranda
ABSTAIN: None
ATTEST:
%Cr
i oaanna Kinne CMC
y Clerk
(City Seal)
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