HomeMy WebLinkAboutOrdinance 2611
ORDINANCE NO. 2611
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AN ORDINANCE AMENDING CHAPTER 14~ OF THE NORTH
RICHLAND HILLS CODE OF ORDINANCES, ADOPTING THE 2000
INTERNATIONAL MECHANICAL CODE AS AMENDED BY THE
RECOMMENDED AMENDMENTS OF THE NORTH CENTRAL TEXAS
COUNCIL OF GOVERNMENTS AS THE MECHANICAL CODE OF THE
CITY OF NORTH RICHLAND HILLS, REPEALING OBSOLETE AND
CONFLICTING ORDINANCES; PROVIDING FOR SEVERABILITY;
ESTABLISHING A PENALTY; AUTHORIZING PUBLICATION; AND
PROVIDING AN EFFECTIVE DATE.
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WHEREAS, the North Richland Hills City Council desires to adopt the 2000
International Mechanical Code with amendments recommended by the
North Central Texas Council of Governments in order to better provide for
the safety of its residents and their property; NOW, THEREFORE,
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BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF NORTH
RICH LAND HILLS, TEXAS:
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Section 1:
THAT Section 14~-3 ofthe North Richland Hills Code of Ordinances be
amended to read as follows:
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"Sec. 14~-3. International Mechanical Code Adopted.
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The International Mechanical Code, 2000 Edition, as adopted by the International
Code Council, Inc., a copy of which is on file in the office ofthe City Secretary,
as amended by the recommended amendments ofthe North Central Texas Council
of Governments, as further modified by the North Richland Hills Technical Code
Review Committee, as further modified by the North Richland Hills Technical
Code Committee, a copy of which is on file in the office ofthe City Secretary, is
hereby adopted by reference and designated as the Mechanical Code of the City of
North Richland Hills, the same as though such Code were copied at length herein."
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Section 2:
Sections 14~-4, 14~-9 and 14Ÿ2-13 of the North Richland Hills Code of
Ordinances are hereby repealed. All other Ordinances, or parts of
Ordinances in conflict herewith, are hereby repealed to the extent that they
are in conflict herein. Such other Ordinances are hereby saved from repeal
to the extent they are not in conflict herewith.
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Section 3:
It is hereby declared to be the intention of the City Council that the
sections, paragraphs, sentences, clauses and phrases ofthis ordinance are
severable and, if any phrase, clause, sentence, paragraph or section ofthis
ordinance shall be declared unconstitutional or otherwise invalid by the
final judgment or decree of any court of competent jurisdiction, such
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invalidity shall not affect any ofthe remaining phrases, clauses, sentences,
paragraphs and sections ofthis ordinance, since the same would have been
enacted by the city council without the incorporation in this ordinance of
any such invalid phrase, clause, sentence, paragraph or section.
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Section 4:
Any person, firm or corporation violating any provision of this ordinance
shall be deemed guilty of a misdemeanor and upon final conviction thereof
fined in an amount not to exceed Two Thousand Dollars ($2,000.00).
Each day any such violation shall be allowed to continue shall constitute
a separate violation and punishable hereunder.
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SectionS:
The City Secretary is hereby authorized and directed to cause the
publication ofthe descriptive caption and penalty clauses ofthis ordinance
two times.
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Section 6:
This ordinance shall become effective immediately upon passage.
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AND IT IS SO ORDAINED.
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PASSED on this 25th day of March, 2002.
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CITY OF NORTH RICHLAND HILLS
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Pa~lÎfi~utson, City Secretary
By:
CtL
Charles Scoma, Mayor
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Recommended Amendments to the
2000 International Mechanical Code
North Central Texas Council of Governments region
(As modified by the North Richland Hills Technical Code Committee)
**Section 102.8; change to read as follows:
102.8 Referenced codes and standards. The codes and standards referenced herein shall be those
that are listed in Chapter 15 and such codes. when specifically adopted. and standards shall be
considered part of the requirements of this code to the prescribed extent of each such reference. Where
differences occur between provisions of this code and the referenced standards, the provisions of this
code shall apply. Whenever amendments have been adopted to the referenced codes and standards.
each reference to said code and standard shall be considered to reference the amendments as well. Any
reference to NFPA 70 or the ICC Electrical Code shall mean the Electrical Code as adopted.
**Section 302.3; change to read as follows:
302.3 Cutting, notching and boring in wood framing. When permitted by the International Building
Code. the +Ae cutting, notching and boring of wood framing members shall comply with Sections 302.3.1
through 302.3.3.
**Section 304.5; delete.
**Section 304.8; change to read as follows:
304.8 Clearances from grade. Equipment and appliances installed at grade level shall be supported on
a level concrete slab or other approved material extending above adjoining grade a minimum of 3 inches
(76 mm) or shall be suspended a minimum of 6 inches (152 mm) above adjoining grade.
**Add Section 304.11 to read as follows:
304.11 Minimum burial depth. Underground fuel piping systems shall be installed a minimum depth of
18 inches (458 mm) below grade.
North Central Texas
2000 IMC amendments
February 2001
**Section 306.3; change to read as follows:
306.3 Appliances in attics. Attics containing appliances requiring access shall be provided. . . {bulk of
paragraph unchanged} . . . side of the appliance. The clear access opening dimensions shall be a
minimum of 20 inches by 30 inches (508 mm by 762 mm), or larger where such dimensions are not large
enough to allow removal of the largest appliance. As a minimum. access to the attic space of residential
uses shall be provided by one of the following:
1. A permanent stair.
2. A pull down stair.
3. An access door from an upper floor level.
Exception: The passageway and level service space are not required where the appliance is
capable of being serviced and removed through the required opening.
**Section 306.3.1; add a sentence to read as follows:
Low voltage wiring of 50 Volts or less shall be installed in a manner to prevent physical damage.
**Section 306.4.1; add a sentence to read as follows:
Low voltage wiring of 50 Volts or less shall be installed in a manner to prevent physical damage.
**Section 306.5; change to read as follows:
306.5 Equipment and appliances on roofs or elevated structures. Where equipment and appliances
requiring access are installed on roofs or elevated structures at a height exceeding 16 feet (4877 mm),
such access shall be provided by a permanent approved means of access~, tho extont of which shall be
from Permanent exterior ladders providing roof access need not extend closer than 8 feet (2438 mm) to
the finish grade or floor level below and shall extend to the equipment and appliance's level service space.
Such access shall. . . {bulk of section to read the same}. . . on roofs having a slope greater than 4 units
vertical in 12 units horizontal (33-percent slope).
A receptacle outlet shall be provided at or near the equipment and appliance location in
accordance with the Electrical Code. Low voltage wiring of 50 Volts or less shall be installed in a manner
to prevent physical damage.
**Section 306.6; add a second paragraph to read as follows:
A receptacle outlet shall be provided at or near the appliance location in accordance with the
Electrical Code. Low voltage wiring of 50 Volts or less shall be installed in a manner to prevent physical
damage.
North Central Texas
2000 IMC amendments
2
February 2001
**Add Section 306.6.1 to read as follows:
306.6.1 Catwalk. On roofs having slopes greater than 4 units vertical in 12 units horizontal. a catwalk at
least 16 inches in width with substantial cleats spaced not more than 16 inches apart shall be provided
from the roof access to the working platform at the appliance.
**Add Section 306.7 to read as follows:
306.7 Water heaters above ground or floor. When the mezzanine or platform in which a water heater
is installed is more than eight (8) feet (2438 mm) above the ground or floor level. it shall be made
accessible by a stairway or permanent ladder fastened to the building.
306.7.1 Whenever the mezzanine or platform is not adequately lighted or access to a receptacle
outlet is not obtainable from the main level. lighting and a receptacle outlet shall be provided in
accordance with Section 306.3.1 .
**Section 307.2.1; modify second sentence to read as follows:
307.2.1 Condensate disposal. Condensate from all cooling coils and evaporators shall be conveyed
from the drain pan outlet to an approved place of disposal. Condensate shall not discharge in a publicly
exposed area such as into a street, alley, sidewalk or other areas so as to cause a nuisance.
**Section 307.2.2; add a second paragraph to read as follows:
Condensate waste pipes from air-cooling coils may be sized in accordance with equipment
capacity as follows:
Equipment Capacity
in tons of refrigeration
Up to 20 tons
Over 20 to 40 tons
Over 40 to 90 tons
Over 90 to 125 tons
Over 125 to 250 tons
Minimum Condensate Pipe
Inside Diameter
3/4 inch
1 inch
1 1/4 inch
1 i'2 inch
2 inch
The size of condensate waste pipes may be for one unit or a combination of units. or as
recommended by the manufacturer. The capacity of waste pipes assumes a 1I8-inch-per-foot slope. with
the pipe running three-quarters full. '
North Central Texas
2000 IMC amendments
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February 2001
-Section 307.2.3; add item #4 to read as follows:
4. Discharge. as noted. shall be to a conspicuous point of disposal to alert occupants in the event of a
stoppage of the drain. However. the conspicuous point shall not create a hazard such as dripping over
a walking surface or other areas so as to create a nuisance.
**Section 403.2; add an exception to read as follows:
Exception: Where the design professional demonstrates that an engineered ventilation system is
designed in accordance with ASHRAE 62. the minimum required rate of outdoor air shall be
permitted to be as specified in such engineered system design.
**Section 403.2.1; add an item #4 to read as follows:
4. Toilet rooms within private dwellings that contain only a water closet. lavatory or combination
thereof may be ventilated with an approved mechanical recirculating fan or similar device
designed to remove odors from the air.
**Table 403.3, footnote g: change to read as follows:
g. Transfer air permitted in accordance with Section 403.2.2. Toilet rooms within private dwellings that
contain only a water closet. lavatory or combination thereof may be ventilated with an approved
mechanical recirculating fan or similar device designed to remove odors from the air.
**Section 504.6; add a sentence to read as follows:
The size of duct shall not be reduced along its developed length nor at the point of termination.
**Section 504.6.1; change to read as follows:
504.6.1 Maximum length. The maximum length of a clothes dryer exhaust duct shall not exceed 25 feet
(7620 mm) from the dryer location to the outlet terminal with not more than two bends. When extra bends
are installed. the maximum length of the duct shall be reduced 2.5 feet (762 mm) for each 45-degree (0.79
rad) bend and 5 feet (1524 mm) for each 90-degree (1.6 rad) bend that occur after the first two bends.
measuring in the direction of airflow.
{Exception is unchanged}
North Central Texas
2000 IMC amendments
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February 2001
**Section 506.3.11; change to read as follows:
506.3.11 Duct enclosure. A grease duct serving a Type I hood that penetrates a ceiling, wall or floor
shall be enclosed '" {bulk of paragraph unchanged}... through the use of weather-protected openings.
The enclosure shall be separated from the duct by a minimum of ê .3 inches (~ I6 mm) and a maximum
of 12 inches (305 mm) and shall serve a single grease exhaust duct system.
{Exceptions remain unchanged.}
**Section 510.7; add a second exception to read as follows:
Exception~:
L {existing exception unchanged}
2. Ducts where the largest cross~sectional diameter of the duct is less than 10 inches (254 mm).
**Section 604.1; change to read as follows:
604.1 General. Duct insulation shall conform to the requirements of Sections 604.2 through 604.11. Table
604.1 and the International Energy Conservation Code. Should there be any conflicts between this
section and the energy code. the energy code shall take precedence.
**Add Table No. 604.1 to read as follows:
Duct Location
Table 604.1 - Insulation of Ducts
Insulation Types
Mechanically
Cooled
Heating Zone 1
On roof on exterior of building
C, V2 and W
I
II
III
Insulation
Types
Heating Only
A and W
Band W
C and W
A and V2
I
II
III
I
II
III
A
A
B
Attics, garages and crawl spaces
A and V2
In walls3, within floor-ceiling spaces3
A
A
B
Within the conditioned space or in
Basements; return ducts in air plenums
None required
None required
Cement slab or within ground
None required
None required
Note: Where ducts are used for both hèating and cooling, the minimum insulation shall be as required for
the most restrictive condition.
1 Heating Degree Days:
North Central Texas
2000 IMC amendments
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February 2001
Zone I below 4,500 D.o.
Zone II 4,501 to 8,000 D.D.
Zone III over 8,000 D.D.
2 Vapor retarders shall be installed on supply ducts in spaces vented to the outside in geographic areas
where the summer dew point temperature based on the 2 Yz percent column of dry-bulb and mean
coincident wet-bulb temperature exceeds 60° F. (15.4° C).
3 Insulation may be omitted on that portion of a duct which is located within a wall- or a floor-ceiling space
where:
3.1 Both sides of the space are exposed to conditioned air.
3.2 The space is not ventilated.
3.3 The space is not used as a return plenum.
3.4 The space is not exposed to unconditioned air.
Ceilings which form plenums need not be insulated.
INSULATION TYPES4:
A -- A material with an installed conductance of 0.48 [2.72 W/(m*K)] or the equivalent thermal
resistance of 2.1 [0.367 (m*K)/W].
Example of materials capable of meeting the above requirements:
1-inch (25 mm), 0.60 Ib./cu.ft. (9.6 kg/m3) mineral fiber, rock, slag or glass blankets.
Yz-inch (13 mm), 1.5 to 3 Ib./cu.ft. (24 to 48 kg/m3) mineral fiber blanket duct liner.
Yz-inch (13 mm), 3 to 10 Ib./cu.ft. (48 to 160 kg/m3) mineral fiber board.
B -- A material with an installed conductance of 0.24 [1.36 W/(m*K)] or the equivalent thermal
resistance of 4.2 [0.735 (m*K)/W].
Example of materials capable of meeting the above requirements:
2-inch (51 mm), 0.60 Ib./cu.ft. (9.6 kg/m3) mineral fiber blankets.
1-inch (25 mm), 1.5 to 3 Ib./cu.ft. (24 to 48 kg/m3) mineral fiber blanket duct liner.
1-inch (25 mm), 3 to 10 Ib./cu.ft. (48 to 160 kg/m3) mineral fiber board.
C -- A material with an installed conductance of 0.16 [0.9 W/(m*K)] or the equivalent thermal
resistance of 6.3 [1.1 (m*K)/W].
Example of materials capable of meeting the above requirements:
3-inch (76 mm), 0.60 Ib./cu.ft. (9.6 kg/m3) mineral fiber blankets.
1 Yz-inch (38 mm), 1.5 to 3 Ib./cu.ft. (24 to 48 kg/m3) mineral fiber blanket duct liner.
1 Yz-inch (38 mm), 3 to 10 Ib./cu.ft. (48 to 160 kg/m3) mineral fiber board.
V --Vapor Retarders: Material with a perm rating not exceeding 0.05 perm [29 ng/Pa*s*m2]. All joints
to be sealed.
W - Approved weatherproof barrier.
4 The example of materials listed under each type is not meant to limit other available thickness and
density combinations with the equivalent installed conductance or resistance based on the insulation
only.
**Section 604.11; change to read as follows:
604.11 Vapor retarders. Where ducts used for cooling are externally insulated, the insulation shall be
covered with a vapor retarder in accordance with Table 604.1 h3ving a maximum pormoanco of 0.05 perm
[2.87 ng/(P3 '-&-'-m2jj or aluminum foil having a minimum thickness of 2 mils (0.051 mm). Insulations
having a permeance of 0.05 perms [2.87 ng/(Pa . s . m2)] or less shall not be required to be covered. All
joints and seams shall be sealed to maintain the continuity of the vapor retarder.
North Central Texas
2000 IMC amendments
6
February 2001
**Section 607.2.2; change to read as follows:
607.2.2 Hazardous exhaust ducts. Hazardous exhaust duct systems shall extend directly to the
exterior of the building and shall not extend into or through ducts and plenums. Penetration of structural
elements shall conform to this section and the International Building Code except that fire -F-H:e dampers
are not required at penetration of fire-resistance-rated assemblies for hazardous oxhaust duct systom
Sh311 comply with Soction 510.
**Section 607.5.1; change to read as follows:
607.5.1 Fire Walls. Ducts and transfer openings permitted in fire walls in accordance with Section
705.11 of the International Build;ng Code shall be protected with approved fire dampers installed in
accordance with their listing. Hazardous exhaust ducts shall not penetrate fire walls.
**Section 607.6.1; change to read as follows:
607.6.1 Through penetrations. In occupancies other than Groups 1-2 and 1-3. penetrations by an air
duct through a fire-resistive-rated floor/ceiling assembly that connects not more than two stories are
permitted without shaft enclosure protection where a fire damper is installed at the floor line.
**Chapter 14; delete.
END
North Central Texas
2000 IMC amendments
7
February 2001
INVOICE
Star-Telegram
400 W. 7th Street
FORT WORTH, TX 76102
(817) 390-7761
Federal Tax ID 22-3148254
Customer ID:
Invoice Number:
Invoice Date:
Terms:
Due Date:
PO Number:
Order Number:
Sales Rep:
Description:
Publication Dates:
Bill To:
CITY OF N RICHLAND HILLS/SECRET
PO BOX 820609
NORTH RICHLAND HILLS, TX 76182-'
~'w/6"¿Y\~~
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CIT13
212497451
4/1/02
Net due in 21 days
3/31/02
21249745
073
ORDINANCE NO.2
3/29/02 - 4/1/02
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Cent"al Texas Council
ofGovemments ae
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severablUtY; estab- ,
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Any person" fl.rm of
corporatIon violating
any provlelon Of thlll
ordln.nce shal, be
~:cT.~ea~~~ty ~~n~
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amount not to exceed
THE STATE OF' Two ThoM.eand Dol-
lars ($2,000.00). each
County of Tarran! day ány such vIolation
shãll I)e allOwed to
COIiIIlnue shall constl-,
Before me, a Nota' a:~3':J~1:1I ~19i. County and State, this day personally appeared Christy Holland, Bid and Legal Coordinator
for the Star-Te .'1~e,~ r',a,'.~ .,.,. ',...."..'.,',.,.,.'....,.., 'r- Telegram, Inc. amF 011h, In Tarrant County, Texas; and, who, after being duly sworn,' did depose and say
that the attached c ':1ty~f un . '. '~nt was published In h1}¿ named paper on the listed dat~s: BI S & LEGAL DEPTZS AR TLEGRAM
(817) 390-7182 hd~~~M. : L ß
.ic~~.' Sþd u.mÁ.1 /1·· }J/MfÚ
SUBSCIUBED AN ~,." HE, THIS Frlday, Aprlll~, 2?¡. ~ Q L. ýJ I . I;' /\/:1) /'\
. StaPles .' . Notary Public -( ~ IZ<.- LZì Ã.J{ JJ( .fr/ r '-
rh~p~fýAttor- '," , , , ,,,,",' " ., 'r - ","" - , - -"
VICKI L. WASON
MY COMlvliSSION EXPIRES
AUGUST 28, 2004
ORDINANCE NO. 2611 An ordinanc
'n.,..
13580
61
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LINE
Sales Discount
Net Amount:
Thank You For Your Payment
,~~';. ~
------------------------------------------------
Remit To: Star-Telegram
P.O. Box 901051
FORT WORTH, TX 76101-2051
Customer ID:
Customer Name:
Invoice Number:
Invoice Amount:
PO Number:
Amount Enclosed:
$
$6.08
$741.76
($697.84)
$43.92
CIT13
CITY OF N RICHLAND HIL
212497451
$43.92