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HomeMy WebLinkAboutOrdinance 8907f- ~ •` a a ~ ' ' ~, y g ~ ~. ~.' ..~„_•~ ORDINANCE NO . ~ 9a 7 ~Y AN ORDINANCE ADOPTING THE 1982 EDITION OF THE UNIFORM MECHANICAL CODE AS AMENDED, REGULATING THE DESIGN, QUALITY OF MATERIALS, CONSTRUCTION, LOCATION, AND MAINTENANCE OF HEATING, COMFORT COOLING AND VENTILATING SYSTEMS IN THE CITY OF FORT WORTH, TEXAS; PROVIDING FOR THE ISSUANCE OF PERMITS AND COLLECTION OF FEES THEREFOR; PROVIDING FOR THE INSPECTION OF BUILDINGS; PROVIDING PENALTIES FOR THE VIOLATIONS THEREOF; PROVIDING A SEVERABILITY CLAUSE; PRO- VIDING FOR THE REPEAL OF CONFLICTING ORDINANCES AND CODE ~ SECTIONS; PROVIDING A SAVINGS CLAUSE; AUTHORIZING PUBLICA- TION IN PAMPHLET FORM, DIRECTING PUBLICATION OF THE ~ CAPTION, PENALTY CLAUSE AND EFFECTIVE DATE; DIRECTING THE '~ ENGROSSMENT AND ENROLLMENT OF THE CAPTION AND PENALTY CLAUSE AND THE FILING OF THIS ORDINANCE; AND NAMING AN EFFECTIVE DATE. WHEREAS, it is deemed necessary to provide minimum standards to regulate the design, construction, materials, location and mante- nance of heating, comfort cooling refrigeration, ventilating and ex- ~haust systems and other miscellane,o~us heat producing appliances within the City to protect and promote the public safety, health and welfare; and WHEREAS, the present Codes are i~n~' need of amendments in order to protect and promote the public safety, health and welfare under modern conditions; and, WHEREAS, the Mechanical Board of Appeals of the City of Fort Worth has recommended the adoption of the 1982 edition of the Uniform Mechanical Code of the International Conference of Building r !` Officials, with certain amendments; NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF FORT WORTH, TEXAS: SECTION 1. That the 1982 edition of the Uniform Mechanical Code of the ~y International Conference of Building Officials, appended hereto marked Exhibit "A" and incorporated herein by reference .for all pur- +, ; .. e,-. r ` ~, y; ~ ~~ poses, as the same is hereby amended by amendments appended hereto and marked Exhibit "B", is hereby adopted as the Mechanical Code of the City of Fort Worth, Texas, from the effective date hereof. SECTION 2. That it shall be unlawful for any person to construct, enlarge, alter, repair, move, improve, convert, equip, use or maintain any heating, comfort cooling, refrigeration, ventilating or exhaust systems or other miscellaneous heat producing appliances in the City of Fort Worth or cause the same to be done, contrary to or in viola- tion of any of the provisions of this ordinance.; and that a person violating any of the provisions of this ordinance shall be deemed guilty of a misdemeanor, and each such person shall be guilty of a separate offense for each day or portion thereof during which any violation of any of the provisions of this ordinance is committed, continued or permitted, and each violation shall be punishable by a fine not to exceed $1,000.00. SECTION 3. That it is hereby declared to be the intention of the City Council that the sections, paragraphs, sentences, clauses and phrases of this ordinance are severable, and if any phrase, clause, sentence, paragraph or section of this ordinance shall be declared void, ineffective or unconstitutional by the valid judgment or final decree of a court of competent jurisdiction, such voidness, ineffectiveness or unconstitutionality shall not affect. any of the remaining phrases, clauses, sentences, paragraphs and sections of this ordinance, since the same would have been enacted by the City Council without the incorporation herein of any such void, ineffective or unconstitutional phrase, clause, sentence, paragraph or section. -2- ~:. _ ;~_ SECTION 4. That Ordinance No. 8097 and all ordinances amendatory thereto are hereby expressly repealed and superseded by the terms of this ordinance. All other prior ordinances and City Code sections in con- flict herewith are hereby repealed but only insofar as such ordi- nances and code sections are in conflict with the provisions of this ordinance. Mechanical permits heretofore issued under then existing ordi- nances shall be valid for the time for which they were issued under said ordinances; but upon expiration of such permits., the same shall be void. l'~Tl1T T!'~TT C That all rights and remedies of the City of Fort Worth, Texas, are expressly saved as to any and all violations of the provisions of Ordinance No. 8097 or any other ordinance affecting heating, com- fort cooling or ventilation systems which have accrued at the time of the effective date of this ordinance; and, as to such accrued violations and all pending litigation, both civil and criminal, whether pending in court or not, under such ordinances, same shall not be affected by this ordinance but may be prosecuted until final disposition by the courts. SECTION 6. That the City Secretary of the City of Fort Worth, Texas, is hereby authorized to publish Exhibits "A" and "B" to this ordinance in pamphlet form for general distribution among the public, and the operative provisions of this ordinance as so published shall be admissible in evidence in all courts without further proof than the production thereof, as provided in Chapter XXV, Section. 3, of the Charter of the City of Fort Worth, Texas. -3- .. ~,~ .,. ~N ry: SECTION 7. That the City Secretary of the City of Fort Worth, Texas, is hereby directed to engross and enroll this ordinance by copying the caption and penalty clause of same in the minutes of the City Council of the City of Fort Worth, Texas, and by filing. the ordi- nance in the ordinance records of said City. A complete copy of Exhibits "A" and "B" shall be filed herewith and maintained wherever a complete copy hereof is required for per- manent record and inspection. SECTION 8. That the City Secretary of the City of Fort Worth, Texas, is hereby directed to publish the caption, penalty clause and effective date of this ordinance for five (5) days in the official newspaper of the City of Fort Worth, Texas. SECTION 9. That this ordinance shall be in full force and effect from and after September 1, 1983, and it is so ordained. APPROVED AS TO FORM AND LEGALITY: ~. ~., ~,A,~. City Attorney g ~ t~ - ~ 3 Date: ADOPTED : ~ "' 3~ " 8 ~ ~ q 7 ate- + ~"~ EFFECTIVE: / - ~ '- ~C3 __._._.~r .~a~.~,~ ~. ice„ - 4- ~. ;,~ _ ~.. ~- f ',~ ~.. ~ , ..R '~ ~. ~. ~ EXHIBIT 'B" PROPOSED CHANGES TO THE MECHANICAL CODE OF THIS CITY OF 'FORT WORTH ~ That the 1982 edition of the Uniform Mechanical Cade, Exhibit 'A', shall be e~ended and after being so amended by Exhibit 'B' shall be the Fort Worth Mechanical Code. Amendments shall be by revising or adding the following Sections and Chapters Sec. 101 by revising the complete section Sect. 101 That ordinance ~~ as amended shall be known as the Fit Worth Mechanical Code, may be cited as such, and may be refer red to as 11Thi.s Code." ' Sec 103 by revising the fifth paragraph Appendix "B" Chapter 21 ahal'1 be considered as part of this Code, . Appendix "B" Chapter 22 contains recommended practices which shell serve only as a guide and shall not apply unless specifically adopted Sec 203 by revising the complete section VIOLATIONS Sec 203 (a) Unlawful Installation. It shall be unlawful for any person,. firm or corporation to erect, install, alter, repair, relocate', add to, replace, use, or maintain heating, cooling, refrigeration, ven- tilating or exhaust .systems, incinerators or other miscellaneous heat-producing appliances in the City, or cause the same to be >done, contrary to or in violation of any of the provisions of this ~a,de Max.ntenance of equiprne.nt which was unlawful at the time. it was insGgllad and which would be unlawful. under this Ordinance if ins.,talled after theS effective date of this Ordinance, shall constitute a continuing viola-~~` lion of this Ordinance. (b) Penalty Any person, including a firm or corporation violati:ng~ any of the provisions of this Code shall be deemed guilty of a miser demeanor, and each such person shall be deemed guilty of a separate o€- fence for each and every day or portion thereof during which any viola- lion of any of the provisions of this Code is cocmnitted, continued,. or perigitted, and upon conviction of any such violation, such person 'shsil be punished by a fine not to exceed $1,000 00 Sec. 204 by revising the complete section for the Licensing of Contractors and adding a Business Registration (a) (1) Business Registration Permits shall be issued only to a business who has registered with the City of Fort Worth to make instal- lation of equipment regulated by this code Each business, including self-employment, shall have in their employ a licensed individual°where licenses are required by this code or an official of the business listed. with that business registration who will be designated for issuanee of permits Eac1i registered business shall notify the City of Fort Worth of any change in licensee or designated official (2) License Required Only a person who possesses a Fort Worth Mechanical Air Conditioning Contractors License or a State of Texas Air Conditioning Contractors License will be issued permits for the installation. of all forms of heating, cooling, heating and cooling duct systems, or. refrigeration systems, incinerators and other heat-producing appliances regulated by this code Such Licensed contractors may ex.Cend to and connect thereto any gas p~.l~ing that may be required for the operation of such equipment All Electrical. Connections are regulated by the Fort Worth Electrical Code ?- 4 f cj A Maintenance Journeyman Electrician Licenee shall be required for all persons who perform electrical service, repair or maintenance on equipment regulated by the Mechanical Code when a permit is not required. EXCEPTION (1) Those individual persons who possess a State of Texas Air Conditioning Contractors license shall noC be required to obtain a Fort Worth Maintenance Journeyman Electrician license EXCEPTION (2) Plumbing contractors holding a valid State Plumbing License may install gas fired appliances not connected with refrigeration or cooling Al.l L P, gas piping installations shall conform to the applicable Texas Railroad Commission regulations. (3) Boiler and Pressure Vessels Boiler installation or repair contractors who have been certified by an approved testing agency, C~st- ing to meat (A S M.E.) (Ameri.can Society of Mechanical Engineers and (A W S.) American Welding Society codes may make boiler and pressure vessel installation and repair (4) Automatic Fire Ext~.nguishing Installation A State License and a Fort Worth Fire Department Listing is required to obtain a permit for all automatic fire-extinguishing system installations regulated by this Code (b) (1) 'Licenee Testing Procedure. Every person desiring to be licensed by the City to engage in the mechanical heating and air con- ditioning contracting business in a capacity for which a license is required by this Code shall take an examination given by the Mechanical Inspection Section (2) Eligibility To be eligible for application to take an exam- rnation for a heating and air conditioning contractor's license an ap- plicant mu at be at least twenty-one (21) years of age, and have at least three (3) years experience in heating, cooling, refrigeration systems, or other approved miscellaneous gas fired appliances, and the nstalla- tion thereof For the purpose of this requirement, a degree i:n Mechani- cal Engineering from an accredited college ar university may be deemed the egt.ivalent <a three y~ar8' expari.ence (3) Application Each person to be examined for a Mechanical Heat- ing and Air Conditioning license to be issued by the City of Fort Worth shall first file a wriCten application far such examination at least 30. days before taking the examination with the Chief Mechanical Inspector The application shall include such documentary information as to proof of experience, education, and such other information as is required. hereby for review by the Chief Mechanical Inspector and the Mechanical Board (4) Licenee Use if an applicant i.s an owner, officer, partner, association or superv~.sory employee of a firm, partnership, association or corporation which intends to engage in mechanical heating and air conditioning contracting under the authority of the license applied for, the applicant shall also provide such information regardLng the firm, partnership, association or corporation as the application form may re- quire The applicant shall keep the office of the Mechanical Inspection Section informed of any change in this information (S) Written Examination A wriCten examination shall inquire into the applicant's knowledge of the Mechanical. Code and be given Co those applicants who have eligibility approval Each test shall be certified by the Board Applicants passing the examination may work prior to fn- al certification by the Board (6) Examination Fee Each applicant shall pay an examination fee of Twenty Dollars ($70 00) to Che City of Fort Worth at the time the application is filed A Ten Dollar ($10 00) reexamination fee is re- quired if reexamination is taken within six (6) months of the first failure The applicant is eligible for reexamination after 30 days has expired from first failure and 60 days of failures thereafter. _2_ .~~, ,a,,,.. (7) Location - Time Examinations may be held in the City Hall or at such other place as may be designated and limited to the hours be- tween 8 00 a m and 5 00 p.m The time of the holding of such examina- tion shall be set by the Chief Mechanical Inspector and each applicant shall be notified of the time and location thereof The applicant shall be notified of his grade as soon as practicable (c) Granting License. The Chief Mechanical Inspector shall grant a license to each applicant who has satisfactorily passed the written ex- amination with a grade of 70 or more and pays the specified license fee within thirty (30) days following the date of certification by the Mechanical Board A late payment of the same amount as the application fee shall be required if the thirty (30) days following certification has expired, up to a period of six (6) months After the six-month period another examination will be required. (d) (1) Fees Licensing fees shall be as follows First year or portion thereof $100.00 Yearly renewal 50 00 Delinquency fee for yearly renewal 25 00 (d) (2) Business Registration fees shall be as follows First year or portion thereof $ 25 00 Effective Date Yearly Renewal 25 00 May 10, 1983 Delinquency fee for yearly renewal 15.00 thru December 30, 1984 Business Registration fees shall be as follows First year or portion thereof $100 00 Effective Date Yearly Renewal 50.00 January 1, 1985 Delinquency fee for yearly renewal 25.00 (e) Yearly Expiration. Business Registration and Licenses shall expire on December 31 following the date of issuance or renewal Bus- iness Registration and License fees are due January 1 and shall be renewed annually on or before February 1 upon payment of the required fee Any license which has lapsed not more than one (1) year may be renewed upon payment of the delinquency fee A license which has lapsed for more than one (1) year shall not be renewable and reexamination shall be required Any Business Registration that is allowed to lapse shall pay the renewal fee plus the delinquency fee before permits will be issued. (f) Restrictions of License Licensees shall not be simultaneous- ly employed by, or work for more than one business registration for the purpose of obtaining permits under this Code or for the purpose of doing or supervising work that can only be done by authority of a permit ob- tained under the provisions of this Code. Only one licensee for each business registration will be recognized for the purpose of obtaining permits The licensee shall keep the City of Fort Worth notified of any change in his employment (g) Termination of License Licenses shall not be assigned or transferred, but a license of any owner, officer, partner, association or corporation with a business registration shall be sufficient to qualify such firm, partnership, association or corporation to engage in the business of mechanical heating and air conditioning contracting if a licensee is solely employed by or associated with such firm, partner- ship, association or corporation in a permanent, fulltime capacity In -3- -~~, .,Y„ ,. ,. ,, ,. ~,; the event all holders of valid licenses terminate their relationship for any reason, with such registered business, the business may continue in mechanical heating and air conditioning contracting and will be held responsible for those permits obtained prior to such termination, pro- vided, however, that such permits shall not be valid for more than ninety (90) days from the date of termination Thereafter, in order for a firm, partnership or corporation under existing new business registra- tion to continue operations as a mechanical heating and air conditioning contractor, another owner, officer, partner, associate or supervisory employee of said entity must either hold a valid license or pass the examination, or the registered business shall engage the full time ser- vices of a valid license holder (h) Temporary Work Permit When approved by the Building Official or enforcing authority, a Temporary Work Permit may be issued to a per- son qualifying for a Fort Worth Mechanical Heating and Air Conditioning Contacting License and a business registration. The time period for this permit shall not exceed three (3) months This Temporary Work Permit will entitle the holder to obtain one permit to begin installation of equipment regulated by the Fort Worth Mechanical Code During the three-month time period, or before the in- stallation is complete and before a final inspection has been made, the person who has been issued a Temporary Work Permit shall be required to take the Licensing Examination and obtain a valid Fort Worth Mechanical Heating and Air Conditioning Contractors License and a business regis- tration. A fee for this Temporary Work Permit shall include an examination fee, a licensing fee and a business registration fee This fee shall be paid in full before the issuance of a permit No additional fee will be required when the requirements for a valid Mechanical, Heating and Air Conditioning license have been certified and the business is registered (i) Vehicle. All vehicles operated in connection with the install- tion, erection, alteration, relocation and replacement of any equipment regulated by this code shall be identified on each side with registered business name Where a license is required by Sec 309(a) the licen- see's license number shall be added for identification Letters of identification shall be a minimum of 2-1/2 inches in height, visible and legible at all times that the vehicle is in use for contracting of regu- lated equipment (j) Job Abandonment If, after a permit is issued eo a registered business with a named licensee under the provisions hereof, said licensee abandons the job, becomes incapacitated or his services are terminated prior to final inspection and approval thereof by Building Official or enforcing authority, the permit holder or the person engag- ing the services of the licensee shall immediately notify the Office of the Building Official in writing Upon such notification the Building Official or the enforcing authority shall immediately have an inspection made of the work completed to that time, and he may revoke the outstand- ing permit and require that a new permit be obtained before the work is allowed to resume See Table 3A (k) License or Business Registration Revoked A license, a busi- ness registration or permit may be suspended, repealed or revoked by the Building Official yr enforcing authority by reason of the occurrence of one or more of the following 1 Adjudication of insanity, 2 Fraud or- misrepresentation in obtaining a license registration or permit, 3 Violation of any provision of this ordinance, the Plumbing, Electrical or Building Codes or any other regulatory ordinances of the City applicable to the installation or alteration of appliances, equip- ment or systems as set forth in the Mechanical Ordinance, as amended. -4- ~. '.i a». ° ~. 4. Conviction of defrauding any person for whom they have rendered or contracted to render service, 5 Failure to obtain a permit or the attempted assignment of a permit, 6 Failure to pay permit fees or the voluntary or involuntary filing of bankruptcy proceedings by or against the firm, partnership, association, or corporation with a business registration with the City of Fort Worth 7 The sending of six notifications within a six-month period that the licensee or registered business is in violation of Mechanical Ord- inance, as amended (1) License Suspension Upon suspension or revocation of said Mechanical and Air Conditioning Contracting License, same shall be null and void and no work thereafter may be performed thereunder. Board Affirmation. Upon appeal to the Board, said Board may affirm, revise or modify such suspension or revocation Sec 205, 206, 207 and 208 by adding requirements for Board of Appeals BOARD OF APPEALS Sec 205 (a) General In order to determine the suitability of alternate materials of construction and to provide for reasonable inter- pretations of the provisions of this Code, there shall be and is hereby created. a Mechanical Board of Appeals, hereafter referred to as the "Board," or as "Mechanical Board," consisting of nine members who are qualified as set forth below The Building Official or his designated representative shall be an ex-officio member and shall act as Secretary of the Board (b) Appointment. The Mechanical Board shall be appointed by the City Manager with the consent of the City Council. and shall hold office at its pleasure The Board shall adopt reasonable rules and regulations for conducting its investigations and shall render all decisions and findings in writing (c) Board Composition The Board shall consist of Place Qualifications 1. Citizen not in Building Industry 2 Registered Mechanical Engineer 3 Registered Mechanical Engineer 4 Graduate Engineer Contractor 5. Licensed Air Conditioning Contractor 6 Licensed Mechanical Contractor 7 Citizen in the Air Conditioning Industry 8 Architect 9 Citizen not in Building Industry (d) Tenure The members shall hold office for a term of two (2) years unless relieved for cause prior to that time Members in even- numbered places shall be appointed in even-numbered years Members in odd-numbered places shall be appointed in odd-numbered years Members shall not serve more than three (3) consecutive two-year terms (e) Removal The City Council may remove any member of the Board during the term for which he may be appointed. (f) Vacancy Should a vacancy occur, the City Manager, by and with the advice and consent of the City Council, shall appoint a person hav- ing the prerequisite qualifications of the place vacated to fulfill the unexpired term of said place -5- !~ <~ ., a ~ 1` a 1. (g) Quorum Any five (S) members of the Board shall constitute a quorum to transact business but no decision shall be handed down unless concurred in by not less than five (5) members The Board shall hold meetings at such time and 'place as called by the Chairman or one acting lawfully in that capacity (h) Advisors In addition to the members set out in Section 205 (c) of this Code, the following City Officials shall be Advisors to the Board 1 City Attorney 2. Director of Health 3 Fire Marshal When required by the Board, the Advisory members shall attend and furnish necessary special reports and inspections. (i) Bylaws. It shall be the duty of the Board to meet as soon after their appointment as is practicable One member shall be elected Chairman and shall serve as the Presiding Office of the Board for a per- iod of one (1) year. (j) Secretary.. The Building Official, who serves as Secretary of the Board, shall perform the following services 1 Keep- the Minutes, Books, Files and other Records of the Board 2 Issue all Licenses in the name of the Board. 3 Send out all Notices and attend to all correspondence under the direction of the Board 4 Collect License and Business Registration. Fees for which provision is made by Ordinance, same to be deposited with the Building Official 5. He shall perform such other duties as are incidental to his office and as may be required by the Board (k) Rules The Board shall have the power to make and promulgate its own rules governing its meetings and proceedings, subject to the provisions of this Ordinance Miscellaneous office supplies shall be furnished to the Board by the Building Inspection Division (1) Enforcement The Building Official shall execute and enforce all legally endowed decisions of the Board BOARD'S POWERS Sec. 206 (a) Certification The Board is hereby authorized to investigate methods, materials, equipment and appliances to determine their compliance with Section 102. Those complying shall be certified by the Board for the information of the public (b) Authorization. The powers of the Mechanical Board are hereby extended so as to authorize the Mechanical Board to make reasonable interpretations or rulings in matters properly before it is to the suit- ability of alternate materials and/or methods of installation and upon appeal, authorized such variance in the application of the terms of this Code as will not be contrary to the public interest, where owing to special conditions, a literal enforcement of the provision of this Code will result in unnecessary hardship (c) Limitation The Board of Appeals shall have no power to other- wise change in writing or by general application the text of this Code -6- ~~ w 1 J- METHOD OF FILING APPEAL Sec 207 (a) Right of Appeal Any person, firm, company or corpor- ation aggrieved by any decisions of the Building Official under this Chapter may appeal such decision or order to the Board as set out herein. (b) Appeal Procedure Appeals to the Board must be filed in writ- ing within thirty (30) days from date of the decision or order appealed from and shall be filed in duplicate with the Secretary of the Board Such notice shall contain appropriate reference to the decision or order appealed from as well as the grounds of the appeal It shall be the duty of the Secretary to notify the Chairman of the Board of appeals filed and the details thereof (c) Appeal Fee At the time of filing an appeal., the appellant shall be required to pay an appeal fee of twenty-five dollars ($25 00) (d) Records The Secretary shall transmit to the Board all rele- vant records and data upon which the appeal was taken (e) Hearing. The Board shall fix a reasonable time, not to exceed thirty (30 days, for the hearing of an appeal, giving notice in writing to the parties in interest and shall reach its decision within a reason- able time thereafter Parties may appear before the Board in person, by agents, or by attorney The Board may require additional data and tests necessary for adequate decision of the appeal CODE CHANGE RECOMMENDATIONS BX BOARD Sec 20$ The Board shall review all proposed amendments to the Mechanical Code and shall recommend such changes or amendments as they deem appropriate Sec 301 (b) by revising item ~~S 5 Any unit refrigerating system installed in a R-3 occupancy and commonly referred to as a window air conditioning unit. Sec 302 (a) by adding paragraph ~~2 with an exception and paragraph 4~3. Permits for heating, cooling, heating and cooling duct systems, other gas fired or electric appliances regulated. by this code., and refrigeration will be issued only to holders of a valid Mechanical Heating and Air Conditioning License for a. business registered with the City of Fort Worth EXCEPTION Such licenses are not required in order to obtain permits for the installation, alteration or repair of evapora- tive coolers, fans, ventilation and exhaust systems but a bus- iness registration shall be required Permits for other equipment regulated by this code will be issued only to holders of required licenses or certifications as noted by Sec 204 having a business registration with the City of Fort Worth Sec 302 (b) by revising (b) Plans and Specifications Plans, engineering calculations, diagrams and other data shall be submitted in one or more sets with each application for a permit The building official may require plans, com- putations and specifications to be prepared and designed by a Registered Engineer licensed by the state to practice as such and proficient in Mechanical Engineering Plans and Specifications for the installation of environmental heating or cooling system, absorption systems, ventilation systems and hoods shall be filed with the established enforcing authority and approved before the issuance of any permit for the following -7- i •. t H'4 ry f . a .. .~ (1) Any Group A, E, H or I Occupancy (2) New buildings having an aggregate floor area including base- ents of 15,000 square feet and over (3) Installations other than those listed in items 1 and 2 above, where the aggregate input capacity is 350,000 Btu/h and over for envir- onmental cooling, or an aggregate of 350,000 Btu/h input capacity and over for absorption units (4) All commercial food processing establishments EXCEPTION The building official may waive the submission of plans, calculations or other data if he finds that the nature of the work applied for is such that reviewing of plans is not necess- ary to obtain compliance with this code (c) Information on Plans and Specifications. Plans and specifica- tions shall be drawn to scale upon substantial paper or cloth and shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in detail that it will conform to the provisions of this code and relevant laws., ordinances, rules and regula- tions Mechanical plans or specifications shall show the following (1) Layout for each floor with dimensions of all working spaces and a legend of all symbols used (2) Location, size, and material of all piping. (3) Location, size, and materials of all air ducts, air inlets and air outlets.. (4) Location of all fans, warm-air furnaces, boilers, absorption units, refrigerant compressors and condensers and the weight of all pieces of such equipment weighing 200 pounds or more (5) Rated capacity or horsepower of all boilers, warm-air furnaces, heat exchanger, blower fans, refrigerant compressors and absorption units (6) Location, size and material of all combustion products, vents and chimneys (7) Location and area- of all ventilation and combustion air open- ings and ducts (8) Location of all air dampers, all products of combustion dam- pers, and fire dampers and/or doors and products of combustion detectors which shall indicate how required structural and fire resistive integ- rity will be maintained Sec 303 (e) by revising ,(e) Suspension, Revocation or Refusal The building official may, In writing, suspend or revoke a permit or refuse to issue a permit under the provisions of this code whenever a permit is issued in error or on the basis of incorrect information, supplied or where code violations have not been corrected after a ten days notification or when in vio- lation of other ordinance or regulation of the jurisdiction Sec 304 (a) by adding paragraph ~~2 with an exception Any person obtaining a permit application required by this Code, shall at the time of filing, pay a permit and inspection fee as required by this section for the installation, relocation or replacement of any of the listed items -8- ~, ~. ~. ,. ~~ ., EXCEPTION Where the fees for new structures and additions to structures have been collected on a building permit, additional fees are not required but the permit application shall be filed before the work is commenced by the person doing the work Sec 304 (b) and (c) - Delete Sec 304 (e) Revise completely (e) Fee Refunds 1. The building official may authorize the refunding of any fee paid hereunder which was erroneously paid or col- lected. Where work for which a permit has been issued does not com- mence, and a request is made for a cancellation of such permit within the 60-day time limit, the permit fee may be returned, upon request, minus an administration charge of $5 00. After the 60 days no fee shall be returned Sec. 305 (c) by adding a sentence to the second paragraph Chill water and other piping used to convey fluids for transferring heat shall be tested and approved as required by Sec 2127 of Appendix B Sec 305 (f) by adding a paragraph following the second paragraph and revising the last two paragraphs Reinspection fees also may be assessed (1) When the approved plans are not. readily available to the in- spector (2) 'For failure to provide access on the date for which an inspec- tion is requested. (3) For giving the wrong address on a permit application (4) For deviating from. plans requiring the approval of the administrative authority. To obtain reinspection, the permit applicant shall file and application for the reinspection The reinspection fee shall be paid in accordance with Table No 3-A In instances where permit fees and/or reinspection fees have. been assessed and invoiced, and payment is delinquent, no additional permits or reinspection requests will be issued or performed until the required fees have been paid Revise Table 3-A 3-A TABLE NO 3-A - MECHANICAL PERMIT FEES Permit Issuance 1 For the issuance of each permit $10 00 2. For issuing each supplemental permit. 3.00 Unit Fee Schedule Forced Air Heating-Furnaces including ducts and or vents attached thereto Capacity to and including 100,000 Btu $ 3 00 input or 20KW Over 100,000 Btu or 20KW and including 400,000 Btu or 40KW $ 5 00 -9- Tj ~ ~ r L HEATING APPLIANCES NON-DUCTED AIR Gas Unit or Room Heater, including vent $ 4 00 Gas Wall Heater, including vent $ 4 00 Gas Floor Furnace, including vent $ 4.00 Gas Infra Red Heating Unit $ 4 00 Electric Heater, Wall, Space, Unit, etc $ 4.00 ENERGY-USING HEAT APPLIANCE OTHER THAN ABOVE Per 1,000 Btu Input $ 0 04 Minimum $ 3.00 Per 1 KW $ 0.14 Minimum $ 3 00 EACH LOW OR HIGH PRESSURE STEAM OR HOT WATER BOILER RATED IN EITHER BTU'S INPUT, BOILER HORSEPOWER OUTPUT OR KW Per 1,000 Btu's input $0 04 Minimum $ 3 00 Per Boiler HP output $1 30 Minimum $ 3 00 Per KW $0 14 Minimum $ 3.00 EACH ABSORBER UNIT, ELECTRICAL RECIPROCATING, CENTRIFUGAL, OR ROTARY COMPRESSOR, CONDENSING UNIT, OR CHILLER UNIT, EACH ON ITS NORMAL CAPACITY RATING Up to and including 2 tons $ 3 00 Over 2 and including 3 tons $ S 00 Over 3 and including S tons $ 8 00 Over 5 and including 7-1/2 tons $11 00 Over 7-1/2 and including 10 tons $14 00 Over 10 and including 30 tons, per ton $ 1.30 Over 30 and including 100 tons, per ton $ 1.20 Over 100 and including 320 tons, per ton $ 1 00 Over 320 and. including 520 tons, per ton $ 0.80 Over 520 tons, per ton $ 0 60 EACH ROOF-TOP OR COMBINATION UNIT, INCLUDING DUCTS AND DRAIN Up to and including 3 tons $ S 00 $10 00 Over 3 and including 5 tons $ 8.00 $14 00 Over 5 and including 7-1/2 tons $11 00 $19 00 Over 7-1/2 and including 10 tons $14 00 $22.00 Over 10 tons, per ton $ 2 00 $ 2.50 ROOF-TOP HEATING ONLY Unit per 1,000 Btu $ 0.04 Minimum $ 3.00 THROUGH-THE-WALL A/C UNITS All Sizes Each $ 4.00 COOLING TOWER, EVAPORATIVE OR AIR- COOLED CONDENSER, TONNAGE BASED ON LOCAL DESIGN CONDITIONS All size units, per ton refrigeration capacity $ 0 SO Minimum $ 3 00 -10- ~`.. 1~ ~, r , r a z: COOLING-HEATING COILS D E. or Chill Water per ton $ 0 50 Minimum $ 3 00 Steam or Hot Water per 1,000 Btu $ 0 04 Minimum $ 3 00 FAN AND COIL UNITS INCLUDING DRAINS Cool and Heat per ton $ 1 00 Minimum $ 3 00 Cool only, per ton $ 0 50 Minimum $ 3.00 Heating Unit only, per 1,000 Btu $ 0.04 Minimum $ 3 00 ELECT RIC HEAT STRIPS FOR UNITS OR DUCT INSTALLATION Per KW $ 0 14 Minimum $ 3 00 Mixing Box-Conditioned Air $ 1 00 Mixing Box-Forced Air $ 2.00 Duct Addition or System not included elsewhere, per outlet $ 0 50 Minimum $ 3 00 MISCELLANEOUS Commercial food preparation hood- Grease Type I $ 8 00 Commercial food preparation hood- Heat or Moisture Type II $ 6 00 Commercial hood exhaust fan-Grease $ 5 00 Commercial hood exhaust fan-Heat or Moisture $ 4 00 Commercial hood exhaust duct-Grease $ 5 00 Commercial hood exhaust duct-Heat or Moisture $ 4 .00 Commercial kitchen make-up air unit $ 5 00 Commercial hood automatic electronic smoke extractor $16 00 Automatic fire-extinguishing. equip- ment system $16.00 Range hood for R occupancy $ 1 00 Range hood exhaust duct, for R occupancy $ 1.00 Toilet exhaust fan and/or duct (per inlet) $ 1 00 Ventilation fan and duct system $ 4.00 Industrial Hood $ 6 00 Mechanical ventilator $ 4 00 Flue replacement-U L -labeled $ 3 00 Flue or stack for commercial and industrial appliances $ 5 00 Humidifier $ 2.00 Vented decorative appliance $10 00 Commercial clothes dryer and vent $ 'S 00 Domestic clothes dryer vent $ 1 00 Incinerator, per 1,000 Btu $0 04 Minimum $ 3 00 Incinerator modification $50 00 Condensate drain-approved, other than gravity to sanitary sewer $ 3 00 Fire or Smoke Damper $ 1 .00 Circulating water pump $ 1 00 Evaporative cooler $ 4 .00 Automatic shutoff-products of combustion $ 5 00 Solar energy system $30 00 Heat recovery devices per 1,000 BTU $0 04 Minimum $10.00 -11- .. ,, ~, s. n ~, !k ~. Gas Extension - Test $ 5 00 For each appliance or piece of equipment regulated by this Ordinance for which no other fee is listed $ 5 00 Inspection of previously rejected work $10 00 Written Notification of Mechanical Code Nonconformance $ 5 00 Sec 403 by adding two definitions AIR CONDITIONING UNIT, cooling, (heating) is a specific air treat- ing combination, consisting of a means for ventilation, air circulation, air cleaning and heat transfer, with a controlled means for cooling and/or heating ATTIC is that space which- is between a roof and the ceiling Sec. 404 by adding one definition BOILERS, their accessories and appurtenances, for definitions thereof, refer to Section 2104 Sec 405 by adding one definition COOLING DEGREE DAYS are the number of degrees that the mean temper- ature for that day was over 70°F. Sec 406 by adding one definition DEGREE DAYS is a mathematical unit., obtained from the mean daily high and low temperatures, which are totaled into monthly and annual Degree Days for various cities within the United States They are used as a comparative quantitative measure of the fuel requirements for both cooling and heating. Sec 415 by adding one definition MACHINERY ROOM is a room or space housing Group 1 Refrigeration equipment totaling 100 horsepower or more and all Group 2 Refrigeration equipment regardless of capacity This room or space shall have a min- imum of one hour fire-resistive construction with all interior openings protected and all doors self-closing Sec 418 by adding one definition PUBLIC WAY is any parcel of the sky, appropriated to the free Approval Sec 502 by changing the word Sec 502 (b) by adding a second p. land, unobstructed from the ground to passage of the general public. "approved by" to "acceptable to" and 3ragraph. Sec 502 (a)How Obtained Each appliance shall be acceptable to the building official for safe use or comply with applicable nationally re- cognized standards as evidenced by the listing and label of an approved agency Appendix C. Reference Standards, provides guidance as to avail- able nationally recognized standards. (b) Complying Design of Equipment Installers shall furnish satis- factory evidence that the appliance is constructed in conformity with the requirements of this code. The permanently attached label of an approved agency may be accepted as such evidence Equipment without the permanently attached label and having capa- cities in excess of the capability of any testing agency or a specific equipment- design, may be accepted when both the equipment specifications and an accompanying letter are sealed by an engineer licensed by the -12- ~Y r; «' ~, State of Texas The letter shall state that the equipment meets the re- quirements of the. attached equipment specifications and does conform to the requirements of this code, for field assembled system Sec 503 (a) by adding a sentence to the second paragraph An iron body brass core stopcock will be approved Sec 504 by adding two paragraphs and an exception following the fifth paragraph Suspended appliances shall be safely and adequately supported with due consideration given to their weight. Hangers, brackets and stands shall be of a non-combustible material Fuel fired heating appliances and/or equipment shall not be in- stalled in any space exhausted by a wind or mechanically driven exhaust fan Such space shall not have a negative pressure EXCEPTION Spaces, which contain fuel-fired appliances and/or equipment may have exhaust air systems, provided the exhaust air system is inoperative when the fuel-fired appliance and/or equip- ment is operating or a makeup air supply fan is providing air for both the exhaust air system and combustion air Sec 506 by omitting the word- "duct" between "Electric and heaters" at -the beginning of the fourth paragraph Sec 510 by rewriting in full INDIRECT WASTE CONNECTIONS "Sec 510 (a) Condensate Waste Condensate from air cooling coils shall be collected and discharged to an approved plumbing fixture with an open site air gap, or to an approved disposal area The drain shall have a slope of not less than 1/8 inch per foot and shall be of non- ferrous. metal pipe of at least 3/4 inch inside diameter "EXCEPTIONS "1 The condensate piping material from an air cooling coil may be of rigid sc-hedule forty PVC or CPVC pipe when the total length does not exceed six (6) feet overall, is located and exposed in the same enclo- sure as the air- cooling coil inside the building and this enclosure is not used as an air plenum "2 The inside diameter of the piping from a condensate pump may be the same size but not smaller than that of the pump discharge "3 Cooling unit condensate drains may discharge. into a roof drain if the roof drain connects directly into a storm sewer "4 In the event sanitary sewer connections are not. readily avail- able, the Building Official may permit air conditioning units of ~1o more than 7-1/Z tons to discharge their condensate drainage into an approved disposal area "5 Piping for drain lines from Group II refrigeration equipment may be of galvanized ferrous metal "When the condensate waste from air conditioning coils discharges by direct connection to a lavatory tailpiece or to an approved accessi- ble inlet on a bathtub overflow, the connection shall be located in the area controlled by the same person controlling the air conditioned space "Condensate drain pipes shall be no smaller than the appliance drain outlet Multiple drains shall be sized per Table 5 -13- ~'~. ,. ,~~ ° 1 ~. "Condensate drain pipes shall be permanently supported, not more than 10 feet on centers, and maintain minimum fall Supports must be of a permanent material extending at least 3 inches on either side of the drain pipe Pipe exposed to weather shall be secured to the supports with galvanized iron strips and screws "(b) Approved Condensate Disposal Area Approved disposal area may be a French sump having a minimum dimension of 2'x2'xl-1/2' deep, a minimum distance of 3 feet from a foundation, filled with small crushed rock or washed gravel to within 6" of the top and covered with dirt and turf to a depth of not less than 6". The condensate pipe shall terminate into an approved non-metallic, bottomless container having perforated side walls "(c) Vacuum Breaker. Condensate drains from draw through cooling units shall have an open pipe vacuum breaker in the pipe connection at the unit "(d) Pipe Sizing Piping shall be sized in accordance with Table 5 on the basis of the nominal total tonnage of the units connected thereto "(e) Emergency Overflow. An emergency overflow from a cooling coil condensate collector pan or an additional water-tight pan of corrosion resistant metal. shall be installed in connection with a cooling coil which is Tocated above an occupied space. "The overflow condensate shall be discharged at a point which can be readily observed by the occupant Emergency overflow outlet and pip- ing shall be the size of the condensate drain and may be uninsulated "EXCEPTION Equipment in a room with a waterproof floor having a floor drain, need not have an emergency overflow "(f) Condensate Drainpipe Insulation. All condensate drain lines located above a ceiling, in stud spaces, furnace enclosures or any other spaces, where condensed moisture from a drain line could cause damage, shall be insulated in accordance with Section 2502 (c). "EXCEPTION Insulation will not be required where PVC or GPVC pipe is allowed "(g) Equipment Drains Drains from equipment discharging water, such as boiler blow-off, cooling tower overflow or drainage, processing system or other systems, which require periodic or continuous draining as a means of disposing liquid wastes, shall be discharged into an ap- proved disposal area as permitted by the Fort Worth Water Pollution Code. "Above equipment drains may be ferrous or nonferrous metal and not less than the unit drain outlet in size "(h) Humidifier Drains Drains from humidifiers shall discharge into a sanitary sewer. Piping materials may be ferrous or nonferrous Where humidifier discharges into a condensate drain pipe, it must not decrease the pipe size or create a potential overflow "(i) Public Ways Condensate or waste water shall not drain over a public way -14- €. ~~ r '" ,~ F ~. TABLE 5 Minimum Total Horizontal Tonnage Drain Size 0 - 10 3 4 " 11 - 20 1" 21 - 40 1-1/4" 41 - 60 1-1/2" 61 - 100 2" 111 - Up 3" This table is based on smooth pipe, ASHRAE FUNDAMENTALS 1977." Sec 601 (b) by adding the following sentence and an exception. This space must be separate from circulating air (See Sec 706). EXCEPTION Construction of unusually tight mating with all joints sealed and weather stripped, shall be governed by the provisions of Sec 603 regardless of volume Sec 602 (a) by revising the last sentence Approximately one-half of the required combustion air opening area shall be located within the upper 12 inches of the enclosure and approx- imately one-half of the opening area shall be located within the lower 12 inches of the enclosure All combustion air openings in an enclosure may be located within the upper 12 inches of the enclosure provided the floor area of the appliance compartment is more than twice the floor area of the appliance therein and there is an unobstructed area equal to the required opening area extending to the firebox Sec 603 (a)(2)(B) by adding the following sentence The Building Official approval is required for eave overhang or porch ceiling attic ventilation. Sec 603 (a)(2)(C) by adding the following paragraph Combustion air for forced. air fuel-fired furnaces, within an en- closure., shall have a permanent positive separation from the circulating air (See Sec 706) Sec. 603 by adding the Sec 603(e) and 603(f) (e)•Ventilation Adequate ventilation air for fuel-burning appli- ance enclosures shall be provided in the upper part of the furnace room to prevent excessive heat within the enclosures The means for ventila- tion shall not cause less than atmospheric pressure in the appliance room. (f) Free Area Openings of Grills and Louvers In calculating free area opening of grills and louvers covering combustion air inlets, con- sideration shall be given to the blocking effect of louvers, grills or other opening protection Screens used shall not be smaller than 1/4-inch mesh and shall be readily accessible for cleaning If the free area opening through a design of louver or grill is known, it should be used in calculating the size of opening required to provide the free area specified If the design and free area are not known, it shall be assumed that wood louvers will have 20 percent free area opening and metal louvers and grills will have 70 percent free area opening This area shall be protected by minimum 1/4-inch mesh screen -15- ;~ Sec b04 (a)(3) by changing the 3-inch depth to 6-inch depth 3 Terminate in a space at least 6 inches in depth open to the front or firebox side of the appliance Such space shall extend from the floor to the ceiling of the appliance enclosure Sec. 605 by adding additional type of heating as follows Direct Fired Heater When t11e heater is located outside of the structure to be heated, combustion air and circulation may he taken directly from outdoors through a screened opening, having a 1/4-inch mesh covering the rear of the heater Direct fired heaters located inside the structure shall receive combustion and circulating air through a properly sized, louvered and screened inlet air supply duct, directly connected to outside air EXCEPTION Direct fired heaters, blanketing loading doors and con- trolled by door switches, may use inside air for combustion. Properly ai.zed and located exhaust outlets for direct fired 'heaters shall be provided in all direct fired heater installations See Sec. 1904 for further requirements. Commercial Incinerators When incinerators are located inside of any occupancy, a free area opening having a minimum of 1 square inch per 2000 Btu/h of burner input rating shall be provided as a minimum. See Chapter 18 for further requirements Radiant or Infra-red Heaters Combustion and ventilation air open- ings for unvented radiant heaters shall have a minimum of 2 square inches of free area per 1000 Btu/h of fuel input to the appliance.. See Sec. 607.(c) and 1906 for further requirements Vented RadianC Heaters. These heaters shall have outside air inlets far combustion air furnished in accordance with the manufacturer's in- structions, but in no case shall there be leas than 1 square inch of free area opening per 1000 Btu/h of fuel input to the appliance. Combustion Air Supply for Oil-Burning Equipment Oil-burning equip- ment shall be supplied with not less tha 2 square inches of combustion air free opening per 1400 Btujh, or may be based on 14 cubic feet per hour of outside air per 1000 Btu/h .input The 14 cubic feet per hour does noC include dilution or ventilati.an air and these shall be included in calculating the total ai.r requirements Sec 606 by adding four paragraphs Native Pressure Area A fuel fired appliance shall not be in- stalled in an enclosure that is subject to s negative pressure by any cause Separation Every fuel-fired heating appliance installed in a space exhausted by a wind or power-driven type of exhaust fan shall be asps-- rated from such space by an air-tight enclosure. All air requirements from outside the structure shall be introduced into such an enclosure by means of an air-tight duct, in accordance with Table No b°A Intradur.ted Outside Air Spaces whl.ch have Pane or openings intro- ducing outside fresh air into such space, in equal or greater amounts than the ai:r exhausted plus required combustion air need not be sepa- rated by an air-tighC enclosure Power Exhausters Power-driven exhausters may be used for ventila- tion in such a negative pressure space, provided power exhausters ar.e electrically interlocked in such a manner that 'the gas appliance and the exhauster cannot both operate at the same time. -16- ` ,~ Delete Sec. 607. Delete Sec. 608. TABLE NO 6-A--COMBUSTION AIR REQUIREMENTS FOR FUEL-BURNING EQUIPMENT MINIMUM TOTAL FREE AREA MINIMUM TOTAL FREE AREA OF DUCTS OR OPENINGS, OF DUCTS OR OPENINGS, WHERE FLOOR AREA OF WHERE FLOOR AREA OF COMPARTMENT IS LESS COMPARTMENT IS MORE THAN TWICE THE FLOOR THAN TWICE THE FLOOR AREA OF THE APPLIANCES AREA OF THE APPLIANCES INPUT THEREIN THEREIN 0 through 2 sq in, for each 1 sq in for each 500,000 Btu/h 1000 Btu/h 1000 Btu/h 500,000 through 1000 sq in, plus 2 sq 500 sq in plus 1 sq 1,000,000 Btu/h in for each 1500 Btu/h in for each 1500 Btu/h over 500,000 Btu/h over 500,000 Btu/h Over 1,000,000 1666 sq in plus 2 sq 833 sq in plus 1 sq Btu/h in for each 2000 Btu/h in for each 2000 Btu/h over 1,000,000 Btu/h over 1,000,000 Btu/h Sec 701 by adding a second paragraph from the Uniform Building Code Every dwelling unit and guest room shall be provided with heating facilities capable of maintaining a room temperature of 70°F. at a point 3 feet above the floor in all habitable rooms Ref Building Code Sec 1211 Sec 703 by adding exception ~k5 5. In existing residential construction, an existing furnace room may be used for a replacement furnace, providing the door is not smaller than eighteen (18) inches in width. Sec. 704 by revising ~k5, ~k6, ~k7, ~~8, and adding ~k9 and ~~10 5. in a Group A, B, E or I Occupancy, unless separated from the rest of the building by not less than One-hour Fire-resistive Occupancy Separation EXCEPTIONS 1 Boilers or central heating plants where the largest. piece of fuel equipment does not exceed 400,000 Bty/h input 2 Buildings not more than one story in height of Group B, Division 2 Occupancies with an occupant load of less than 30 3. Equipment installed on the roof of a building 6. In any Group H Occupancy unless separated from such occupancy by not less than a Two-Hour Fire-resistive Occupancy Separation In Group H, Divisions 1 and 2 Occupancies, there shall be no openings in such separations except for necessary ducts and piping 7 In Group R, Division 1 Occupancies, unless separated from such occupancy by not less than a One-Hour Fire-resistive Occupancy Separation EXCEPTION A separation shall not be required for such equipment serving only one dwelling unit 8 In a room used or designed to be used as a bedroom, bathroom, closet or in any confined space with access only through such roam or space. -17- EXCEPTION Direct vent furnaces, enclosed furnaces and electric heating furnaces Access to furnaces located in an attic or under- floor crawl space may be through a closet 9 Outside of a building unless listed for exterior installation or enclosed in a weatherproof housing complying with Section 710 10 With clearance along the combustion-chamber opening ,side of less than 6 inches or working space along the entire front or firebox side less than specified in Section 703 Section 706 (a) by adding a paragraph Tables for Outside Air see Table 4~12A and 12B, reproduced from the Building Code, for outside air requirements Sec 706 (b) by revising as follows (b) Duct Systems Circulating air for any blower-type cooling sy- stem shall be conducted through ducts complying with Chapter 10. Corridors shall not be designed or used as an integral part of a duct system when the corridor is required to be of fire-resistive con- struction by Section 3305 of the Building Code and/or any corridor which serves an occupant load of 30 or more EXCEPTIONS 1 One-story buildings housing Group B, Division 2 Occupancies 2. Corridors more than 30 feet in width where occupancies served by such corridors have at least one exit independent from the corridor 3. Existing buildings of A-3, E, H-4 (office area), B-2, B-4 (office area), occupancy where hourly rated construction does not exist may have the use of the corridor as an integral part of a duct system when Ionization products of combustion detectors are installed in an ap- proved location so as to provide detection for each inhabited room or exit way The detec[or shall be connected to the circulating air system controls The circulating air system shall. be designed and controlled so as to reverse the air flow from the corridor into the inhabited room using all outside air when activated by the product of combustion detectors An approved air release shall exist so as to assure a constant flow from the corridor into the inhabited room. Any other approved system that will accomplish the intent of the above subsections Sec 706 (c) by revising the first sentence to read as follows (c) Separation Except as provided by this Section, there shall be a permanent positive separat-ion between any combustion air and circulat- ing air for blower-type heating systems Sec 706 (j) by adding a requirement for filters (j) Filters Filters shall be installed in all forced air type cen- tral furnaces. Sec 708 by adding a paragraph with an exception between the 4th and 5th paragraphs Access to the furnace shall be provided by a stair or fixed ladder constructed of nominal 2 x 4's with steps on not over eleven-inch (11") centers -18- EXCEPTION An area above a suspended removable ceiling which is not over 10' above the floor below and where a portable ladder is per- manently available Sec 710 (h) by adding exception ~~3 3. For appliances located on roofs of buildings where the minimum height does not exceed (18) eighteen feet from the finish grade, a port- able ladder may be used Sec 803 by adding a third paragraph Approved factory built wood burning fireplaces and stoves shall be installed as required by the listing from an approved testing agency and by the manufacturer's instructions See Table No 5-A for clearances on unlisted appliances Sec 807 (c) by adding an exception to the first paragraph EXCEPTION Unvented fuel-fired room heaters, excluding fuel-fired bathroom heaters, may continue to be used in existing Group R-3 Occupancies when approved by the Building Official unless remodel- ing or rehabilitation of fire damage is in excess of SO% of the value of the structure Where vented heat does exist it shall be maintained in a proper operating condition in accordance with the original design (Reference Sec 104(d) ) Sec 905 (a) by adding an exception to the first paragraph EXCEPTION One 90 degree off-set from the horizontal may be used adjacent to a horizontal draft hood collar Sec 910 by adding item ~k4 to the first paragraph 4 The venting system materials used must be of the same manufac- turer and style as the existing venting, system, or replacement materials shall be of one manufacture Installation shall conform to the U. L listing requirements for the materials Sec. 1002 (a) by revising the third paragraph and adding an exception 4k2 following the exception to the second paragraph Wiring in plenums shall comply with the Electrical Code, Article 725 2. Polyethylene tubing having a U L 94V2 listing and where the to- tal weight does not exceed 1 pound per 1.,000 square feet and the density does not exceed 5 pounds in any one 16--foot radius may be used in the concealed spaces forming air plenums when there is a product of combus- tion detector located where the return air enters the equipment to stop all air circulating in this space Polyethylene tubing enclosed in a rated metal pipe or raceway with all seams and ends sealed with a seal- ant having a flame spread of 25 and a smoke-development of 50 shall not be added into the weight per 1,000 square feet or the density of. any 16-foot radius Sec 1002 (b) by adding a second paragraph Nonmetallic fiberglass duct systems shall conform to the following 1. Shall be a Class 1 Air Duct in accordance with U L 181 Test, as required by NFPA-90A Facing material for round fiberglass ducts and duct board shall have a perm rating of not greater than 0 OS perms Insulation material for insulated flexible duct shall be sheathed with an approved facing material with a vapor barrier having a perm rating of not greater than 0 3 perms, as determined by ASTM-E96, Procedure A Shall have a thermal conductivity (C) at 75° of not greater than 24 C=Btu/hr sq ft. deg F. (ASTM C 177-71 test) -19- Shall not be installed where they will be exposed to the weather 2 All joints shall be connected or stapled and taped in accordance with the manufacturer's instructions Tape shall also meet Class I Air Duct approval by U.L. 181 as required by NFPA-90A. 3. Fiberglass duct systems shall be approved for air velocities, water gage pressure and maximum air temperature in accordance with the manufacturer's ratings 4 All installations of rectangular fiberglass duct board, Types 475, 800 and 1400 shall be reinforced and suspended in accordance with the latest edition of manufacturer's instructions Sec 1002 (c) by revising the first paragraph (c) Joints and Seams of Ducts (1) Joints and seams of round ducts shall be made §ubstantially air tight with contact lap of 1-1/2 inches on all slip joints All round metal duct fittings such as starting col- lars for plenums, reducers, branch take-offs, elbows, stack and grille heads, etc shall be of approved factory or shop manufacture Starting collars shall be used for all round metal duct and ceiling outlets All duct joints shall be first taped and then firmly held in place by means of not less than three metal screws equally spaced in each joint or an equivalent fastening method Tapes used for sealing joints shall not be more combustible than approved flameproof fabric (2) Joints and seams for No 28 and No. 30 gage residential rectan- gular ducts shall be as specified in Table No 10-A for No 26 gage material (3) Joints and seams for rectangular duct systems shall be as specified in Table No 10-A. (4) Joints and seams for flat oval ducts and round ducts in other than single dwelling units shall. be as specified in Table No. 10-B (5) Joints and seams and all reinforcements for factory-made air ducts and- plenums shall meet with the conditions of approval in accor- dance with the installation instructions that shall accompany the pro- duct (6) The entire duct system shall be made substantially air tight by use of tapes, mastics, gasketing or other means Sec, 1005 Deleted. Replaced by Chapter 25 herein Sec. 1006. Deleted, Replaced by Chapter 26 herein Table 10-C Add a Note Round ducts 10" diameter or less may be 0105 thickness or 32 gage material Automatic Shutoffs. Sec 1009. Revise the entire section Automatic Shutoffs Sec. 1009. Unless specifically designed for smoke. r~~.noval or control, a device complying with U B.C Standard No 43.6 which will detect products of combustion other than heat and which will control the equipment shall be placed in the main circulating air duct on the downstream side of the filters and so located as to operate in case of smoke in the airstream, or such devices may be installed in each room or space served by a return-air duct (U B.C. Standard No 43-6 is reprinted in this code ) - 20- "., This requirement is applicable to each single system providing heating or cooling operating in excess of 10,000 cubic feet per minute in Group A, Divisions 1, 2. and 2.1, Group B, Division 2, Groups E, I and Group R, Division 1 Occupancies more than three stories in height or exceeding 36,000 square feet in basic floor area Whenever such a system serves more than one occupancy group, such devices shall be provided EXCEPTION When all rooms have direct exit to the exterior of the building, such devices are not required. Where the building code allows public corridors to be constructed with an automatic sprinkler system installation in leiu of a fire resistive materials, the circulating air system shall be shut down when the sprinkler system is in operation to prevent the recycling of smoke (Reference Sec. 3305 (g)(4). E Building Code). Sec 1104. Add 3 paragraphs following Sec. 1104 (b) exception. Sec 1104 (c) Toilet Ventilation. Toilets without natural ventilation by means of openable exterior openings may have a mechanical exhaust system having not Less than the requirements of Table 12-A, Note No 5, 6 and 7 Provisions shall be made for makeup air. (d) Toilet Exhaust Ducts. The air discharge duct shall not be less than three inches 3" in diameter or an area of 9 square inches and shall conform to all requirements. of Chapter 10 Ducts shall be of alu- minuet or galvanized steel. The amount of elbows shall not exceed three or the equivalency when the minimum duct size is used. (e) Ductless Toilet Exhaust Fan An approved ductless exhaust fan may be used as an alternate for R occupancy only. Sect. 1206 by revising the second paragraph to read Corridors shall not be designed nor used as an integral part of a duct. system when the corridor is required to be of fire resistive construction by Section 3305 of the Building Code and/or any corridor which serves an occupant load of 30 or more. EXCEPTIONS (1) One-story buildings housing Graup B, Division 2 Occupancies (2) Corridors more than. 30 feet in width where occupancies served by such corridors have at least one exit independent from the corridor (3) Existing buildings of A-3, E, H-4 (office area), B-2, B-4 (office area), occupancy where hourly rated construction does not exist may have the use of the corridor as an integral part of a duct system when Ionization products of combusion detectors are installed in an approved location as to provide detection for each inhabited room or exit way The detector shall be connected to the circulating air system controls The circulation air system shall be designed and controlled so as to reverse the air flow from the corridor into the inhabited room using all outside air when activated by the product of combustion detectors An approved air release shall exist so as to insure a constant flow from the corridor into the inhabited room Any other approved system that will accomplish the intent of the above subsections Sec 1207 by adding to Chapter 12 following Sect 1206. -21- ~,. CHILLED AND LOW TEMPERATURE - HOT WATER PIPING MATERIAL Sec. 1207 Materials shall be as follows (a) Copper Pike. Copper piping or tubing for chilled-hot-water piping shall. have a weight of not Lesa than that of Type L. Underground copper joints shall be made with high temperature solder equal to silfos EXCEPTION Type M Copper pipe or tubing may be used when piping is not located under a concrete slab or underground and the maximum pressure does not exceed 60 psi and Che working temperature does not exceed 21U°F (b) Steel Pipe Steel piping shall be seamless or electric butt-welded black or hot dipped galvanized. 'Che minimum strength shall be "Standard Weight," Schedule 40 or 8U as necessary to meet pressure requirements. 1 For one and one-half ( 1 1/2) inch or smaller, use not less than Schedule 40 if pipe is to be threaded For working pressures in excess of 300 psi use Schedule 80 for all sizes. 2, All underground pipe, also pipe sizes two and one-half (2 1/2) inch IPS and larger, shall have welded joints or be an approved fitting Piping change of direction shall be made with seamless welding fittings or of Weldolet type Mitered fittings are not permitted unless approved by the Building Official. (c) Underground 1'~.,pe CemenC, fiberglass and preinsulated schedule 4U PVC pipe may be installed underground for chill water only All pipe and joints shall be insulated in an approved manner (Sec 2502 ). (d) isolation Valves Building structures served by chill-hot water distribution system shall have all chilled-hot water connections to each structure or space valved in such a manner as to afford isolation of the structure or space from the system Gate valves shall be installed approximately two (2) feet outside of the structure unless otherwise approved by the Building Official Valves shall be accessible through a concrete nr ^aet iro~~ bcx, with top mounted flush with final grade when underground -22- Sec 1208 add following Sec 1207 PIPE INSULATION Sec 1208 See Chapter 25 for pipe insulation Add Table 12-A TABLE 12-A MINIMUM FRESH AIR, AIR CIRCULATION AND EXHAUST REQUIRED BY THE FORT WORTH BUILDING CODE MINIMUM C.F M. C.F M. TOTAL AIR GROUP OUTSIDE AIR/ CIRCULATED/ OCCUPANCIES PER/PERSON PER/PERSON 1 6 A 5 15 1 6 E 5 15 1 6 I 5 15 123.45H 5 15 1.2345B 5 15 For "R" Occupancy in lieu of required natural ventilation by means of openable exterior openings as required by the Building Code, a mechanical system may be provided for habitable rooms MINIMUM MINIMUM CIRCULATED OCCUPANCY OUTSIDE AIR AIR CHANGES/HOUR 7 R 1/5 Total Air 2 Circulated NOTE 1 For A, E. I, H, and B Occupancies the mechanically operated circulating air system shall have the capability for continuous opera- tion If -the velocity of the air exceeds 10 feet per second, the register shall be placed more than 8 feet above the floor directly beneath. NOTE 2 In all buildings or portions thereof where flamable liquids are used, exhaust ventilation shall be provided sufficient to produce four complete air changes per hour Such exhaust ventilation shall be taken from a point at or near the floor level NOTE 3 In all buildings used for the repair or handling of automobiles operating under their own power, ventilation shall be provided capable of exhausting a minimum of 1 cfm per square foot Additionally, each engine repair stall shall be equipped with an exhaust pipe extension duct, extending to the outside of the building, which, if over 10 feet in length, shall mechanically exhaust 300 cubic feet per minute Connecting offices and waiting rooms shall be supplied with air free of exhaust fumes and under positive pressure -23- ,:, EXCEPTION In public repair garages and aircraft hangars not ex- opinion, the building is supplied with unobstructed openings to the outer air which are sufficient to provide the necessary ventilation. NOTE 4. In all enclosed parking garages, used for storing or hand- ling of automobiles operating under their own power or on all loading platforms in bus terminals, ventilation shall be provided capable of ex- hausting a minimum of 1 5 cfm per square foot of gross floor area The Building Official may approve an alternate ventilation system designed to exhaust a minimum of 14,000 cfm for each operating vehicle. Such system shall be based upon the anticipated instantaneous movement rate of vehicles but not less than 2 5 percent (or one vehicle) of the garage capacity Automatic CO sensing devices may be employed to modulate the ventilation system to maintain a maximum average concentration of CO of 50 ppm during any eight hour period, with a maximum concentration not greater than 200 ppm for a period not exceeding one hour Connecting offices, waiting rooms, ticket booths, etc., shall be supplied with air _ free of exhaust fumes under positive pressure. EXCEPTION In gasoline service stations without lubrication pits, storage garages and aircraft hangars not exceeding an area of 5000 square feet, the Building Official may authorize the omission of such ventilating equipment where, in his opinion, the building is supplied with unobstructed openings to the outer air which are sufficient to pro- vide the necessary ventilation. NOTE. 5. For H and B occupancies toilets without natural ventilation by means of openable exterior openings shall have a vertical duct of not less than 100 square inches for the first. toilet with an additional 50 square inches for each additional toilet, or a mechanically operated ex- haust system which is connected to the light switch, capable of provid- ing a complete change of air every 15 minutes. Such systems shall be vented. to the outside air and at the point of discharge shall be at least 5 feet from any openable window. NOTE 6 For A, E, and I occupancies all enclosed portions, dressing rooms and restrooms without natural ventilation by means of openable ex- terior openings shall have mechanically operated- ventilating systems to supply a minimum of required outside air as noted in Table 12-A and such system shall have the capability for continuous operation during such time as the building is occupied If the velocity of the air at the reg- ister exceeds 10 feet per second, the register shall be placed more than 8 feet above -the floor directly beneath NOTE 7 For R occupancies without natural ventilat-ion by means of openable exterior openings for bathrooms, water closet compartments, laundry rooms, and similar rooms, mechanical ventilation system, connected directly to the outside, capable of providing five air changes per hour, shall. be provided -24- L 1YL :'~,. ~~~., TABLE 12-B Add following Table 12-A *TABLE NO 12-B - AVAILABLE SQUARE FEET PER OCCUPANT Use Square Foot Per Occupant Aircraft Hangars (No Repair) 500 Auction Rooms 7 Assembly Areas, Concentrated Use without fixed seats 7 Auditoriums Bowling Alleys (Assembly areas) Churches and Chapels Dance Floors Lodge Rooms Reviewing Stands Stadiums Assembly Areas, Less-Concentrated Use 15 Conference Rooms Dining Rooms Drinking Establishments Exhibit Rooms Gymnasiums Lounges Skating Rinks Stages Children's Homes and Homes for the Aged 80 Classrooms 20 Dormitories 50 Dwellings 300 Garage, Parking 200 Hospitals and Sanitariums Nursing Homes 80 Hotels and Apartments 200 Kitchen - Commercial 200 Library Reading Room 50 Locker Rooms 50 Mechanical Equipment Room 300 Nurseries for Children (Day-care) 50 Offices 100 School Shops and Vocational Rooms 50 Stores - Retail Sales Rooms Basement 20 Ground Floor 30 Upper Floors 50 Warehouses 300 All Others 100 Conforms to Table 33-A, Fort Worth Building Code Sec 1504(a) Add third paragraph to Sec. 1504(a) Compressors or condensing units shall not be placed in any haz- ardous location or areas where they may be subjected to mechanical dam- age (Sec 508) Sec 1507 by adding a paragraph following the second paragraph Every machinery room containing any Group 1 refrigeration equipment shall have a one-hour fire resistive separation from any room or space containing a fuel-fired appliance This machinery room shall have at least one means of exit Such exit opening shall be not less than 3 feet by 6 feet 8 inches -25- e +~ Sec 1509 by omitting the first word of the second paragraph and adding item number 9 9 Equipment operating with a heating surface below 800°F. Sec 1701 Add a last sentence and an exception Material shall comply with Sec 2127 of this Code EXCEPTION Underground pipe material may be PVC Schedule 40 when outside of the building perimeter Sec 1702. Add new section DRAIN PIPING Sec, 1702. All drains shall be installed as specified in Section S10 of this Code. Revise Chapter 18 PART V MISCELLANEOUS CHAPTER 18 INCINERATORS DEFINITIONS Sec 1800. As used in these regulations, the following words shall have the meaning. ascribed in this Section as follows 1 ASME -- American Society of Mechanical Engineers, 345 East 47th Street, New York, New York 2. ASTM -- American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania. 3 Existing -- as applied to any equipment, contrivance, or instal- lation being in operation or under construction as of the effective date of this Code, for the purpose of, burning waste 4 Incineration -- Means an operation in which combustion is carried on for the principal purpose, or with the principal result, of oxidizing a waste material to reduce. its bulk or facilitate its disposal 5 Incinerator -- Any article, machine, equipment., contrivance structure, or part of a structure used to burn refuse or to process re- fuse material by burning 6 Multiple chamber incinerator -- Any incinerator used to dispose of combustible refuse by burning and consisting of two or more fire brick or refactory-lined chambers in series, physically separated by fire brick or refractory walls, interconnected by gas passage ports or ducts, and employing adequate design parameters- necessary for maximum combustion of the material to be burned, the refractories shall have a Pyrometric Cone Equivalent to 31 tested according to the method described in the ASTM Method C-24-56. 7 New -- as applied to any equipment, machine, device, or contriv- ance or installation, shall not mean "existing" as defined. herein 8. Open Burning -- The burning of any materials wherein air contam- inants resulting from combustion are emitted directly into the ambient air without passing through a stack or chimney from an enclosed chamber For the purposes of this definition, a chamber shall be re- garded as enclosed when during the time combustion takes place, only such apertures, ducts, stacks, flues or chimneys as are necessary to provide combustion air and to permit the escape of exhaust gases -26- ,~,.t.e 9 Particulate matter -- Any material, except uncombined water, which exists in a finely divided form as a liquid or solid at standard conditions 10 Process weight -- The total weight of all materials introduced into an incinerator, excluding liquids as gases used solely as fuels, and excluding air introduced for purposes of combustion 11 Refuse (Waste) -- Garbage, .rubbish, trade wastes, leaves, sal- vageable material, agricultural wastes, and all other combustibles capa- ble of combustion in a incinerator. 12. Ringlemann Chart -- "Ringlemann's Scale for Grading the Density of Smoke' as published in U S Bureau of Mines Information Circular 2333. 13 Smoke -- Small gas-borne particles resulting from combustion, consisting of carbon, ash, and other material GENERAL Sec 1801 Incinerators for the reduction of refuse, garbage, or other waste materials shall be installed in accordance with the provi- sions of this Chapter Materials and structural design shall meet the requirements of this Chapter For the purpose of this Code., wastes are classified into the fol- lowing types, with information as to their approximate heating value and moisture content included as a guide to the selection of proper equip- ment to best incinerate a particular waste. Incinerators are classified by their capacities and by the type of wastes they are intended to incinerate Type 0 -- A mixture of highly combustible waste, such as paper, cardboard, cartons, wood boxes, and combustible floor sweepings, from commercial and industrial activities The mixtures contain up to 10 per- cent by weight of plastic bags, coated paper, laminated paper, treated. corrugated cardboard, oily rags, and plastic rubber scraps This type. of waste contains not more than 10 percent moisture, 5 percent noncombustible solids, and has a heating value of 8,500 Btu's per pound fired Type 1 -- A mixture of combustible waste, such as paper, cardboard, cartons, wood scrap, soilage., and combustible floor sweepings, from com- mercial and industrial activities The mixture contains up to 20 percent by weight of restaurant or cafeteria waste, but contains little or no treated papers, plastic, or rubber wastes. This type of waste contains not more than 25 percent moisture, 10 percent noncombustible solids, and has a heating value of 6,500 Btu's per pound as fired Type 2 -- Waste consisting of an approximately even mixture of Type 1 waste and garbage, Type 3 waste, by weight. This type of waste is common to apartment and residential occu- pancy, consisting of up to 50 percent moisture, 7 percent noncombustible solids, and has a heating value of 4,500 Btu's per pound as fired Type 3 -- Garbage, consisting of animal and vegetable wastes from restaurants, cafeterias, hotels, hospitals, markets, and like installa- tions. This type of waste contains up to 70 percent moisture, up to 5 per- cent noncombustible solids, and has a heating value of 2,500 Btu's per pound as fired -27- 'a Type 4 -- Human and animal remains, consisting of carcasses, organs, and solid organic wastes from. hospitals, laboratories, abattoirs, animal pounds, and similar sources consisting of up to 85 percent moisture, 5 percent noncombustible solids, and having a heating value of 1,000 Btu's per pound as fired Type 5 -- Byproducts waste, gaseous liquid, or semi-liquid, such as tar, paints, solvents, sludge, fumes, etc from industrial operations, Btu values must be determined by the individual materials to be destroyed Type 6 -- Solid byproduct waste, such as rubber, plastics, wood waste, etc , from industrial operations Btu values must be determined by the individual materials to be destroyed. Small Domestic Type Sec 1802. Incinerators of small uninsulated domestic type in- stalled in doors shall be constructed, mounted, installed and vented ac- cording to the applicable requirements for room heating stoves burning solid fuel and room heaters burning liquid fuel as specified in Chapters 5, 6, 8 and 9 of this code, except that mounting shall be on a noncom- bustible and fire-resistive floor, and minimum clearances to combustible materials shall be 36 inches above, 48 inches in front and 36 inches in back and at sides The requirements of this section shall also apply to incinerators installed as a part of other appliances Incinerators of small domestic type, or those that are a part of another appliance, which have been tested. and approved by an approved testing agency and approved for installation on a combustible floor or with lesser clearances shall be installed in accordance with the condi- tions of such approval and shall be connected to a chimney complying with the requirements of Chapter 9. EXCEPTION Existing unlined chimneys having not less than 4-inch nominal brick walls may be used for the venting of domestic gas-fi- red freestanding incinerators when such chimneys meet the other re- quirements of this chapter and have been approved and inspected by the building official. Outdoor incinerators of small domestic type and their location shall be approved. Incinerators Using the Flue as a Refuse Chute Sec. 1803. Incinerators in which no fuel other than normal refuse, except a gas flame or similar means to accomplish ignition, is used for combustion, and in which the chute and smoke flue are identical, shall have the enclosing walls of the combustion chamber constructed of clay or shale brickwork not less than 4 inches thick when there is a horizon- tal grate area of not more. than 9 square feet and not less than 8 inches thick when there is a horizontal grate area exceeding 9 square feet and, in each case, a lining of firebrick not less than 4 inches thick, with an air space, in the case of the thicker wall, between the clay or shale brick and the firebrick sufficient to provide for expansion and contraction The combined chute and flue shall be constructed as required for incinerator chimneys in Chapter 37 of the Building Code Such chute and flue shall be constructed straight and plumb, and finished smooth on the inside All flues shall terminate in a substantially constructed spark arrester having a mesh not exceeding 1/4 inch Firebrick shall be lard in fireclay mortar Service openings into the chute shall be equipped with approved self closing hoppers so constructed that the openings are closed off while the hopper is being charged and no part will project into the chute or flue The area of the service opening shall not exceed one- third of the area of the chute or flue -28- .~ COMMERCIAL AND INDUSTRIAL TYPE INCINERATORS STORAGE ROOMS UP TO 350 LBS. WASTE Sec 1804 Incinerators in which the maximum hourly destruction rate of Type 1 waste or its equivalent does not exceed 350 pounds per hour, shall have refuse storage rooms separated from other parts of the building by walls, floors and ceiling assemblies, having a fire- resistance of not less than one (1) hour Storage rooms shall be used only for the storage of the waste to be destroyed or the storage of waste materials containers. STORAGE ROOMS OVER 350 LBS. WASTE Sec. 1805. Incinerators in which the maximum hourly destruction rate of Type 1 waste or its equivalent exceed 350 pounds per hour shall have refuse storage rooms separated from other parts of the building by walls, floor and ceiling assemblies constructed of noncombustible material have a fire-resistive rating of not less than two (2) hours 1 Door shall be fire-resistive, Class A, and shall have a U L approved door closer with fusible link. 2 Storage room shall be used only for the storage of the waste to be destroyed or the storage of waste materials containers DOORS Sec 1806 Doors or other openings in rooms containing incinerators communicating with other areas shall be protected by approved self- closing automatic fire doors suitable for Class B openings. AUTOMATIC SPRINKLERS Sec 1807 (a) Automatic Sprinklers. Automatic sprinklers are re- commended and a short length of hand hose connected to a suitable water supply shall be located in the incinerator storage room. (b) Piping Prohibited Piping shall not be installed in incinerator refuse storage rooms EXCEPTION Sprinkler piping, lighting circuit conduit or domestic water hose connection LOCATION Sec 1808 Incinerators, other Chan those used in one and two- family dwellings, shall be located outside of any building. Minimum dis- tance from incinerator casing to any combustible material shall be main- tained at thiity-six inches (36") EXCEPTION An incinerator may be located within an enclosed structure, provided the enclosure is windowless and is fire- resistive construction conforming to Sections 1804 and 1805 Door openings shall conform to Section 1806 COMBUSTION AIR FOR INSIDE INSTALLATIONS Sec 1809 Combustion and/or ventilation ducts or openings shall be protected by automatic fire dampers suitable for Class B openings when penetrating fire-resistive construction Air ducts extending from an in- cinerator room shall be constructed and protected in accordance with Chapter 10 Opening for combusCion air duct shall have a free area of not less than 0.5 square foot per 500,000 Btu's per hour incinerator burning rate. -29- ~ ,. ~' , " , CHIMNEYS Sec. 1810 Metal chimneys for incinerators shall conform to the requirements of Section 914.(e)(2) LABEL AND LOAD USAGE Sec. 1811.(a) Demonstration The burning capacity of an incinerator shall be the manufacturer s or designer's guaranteed maximum rate, for the type of wastes to be consumed, and shall be demonstrated in an opac- ity performance test witnessed by Che Air Pollution Authority for a per- iod of not less than one hour per test Purchaser and/or user shall not operate incinerator in excess of manufacturer's rated capacity when burning a designated waste of types 0, 1, 2, 3, 4, 5, or 6 Burning capacity of incinerator for the type of waste to be consumed shall be posted on the incinerator by the manufac- turer. (b) Multiple Chamber An incinerator shall not be used for the burning of waste unless such incinerator is a multiple chamber incinera- tor or approved by the Board, Existing incinerators which are not multiple chamber incinerators may be altered, modified or rebuilt as necessary to meet this and the following performance requirements EXCEPTIONS 1 Single chamber incinerators may be used in Glass I Occupancies only. 2. Single chamber incinerators are acceptable in any occupancy when using the principle of waste gasification and its destruc- tion by burning.. When installed in capacities of over 500 pounds per hour, they shall be equipped with an automatic charging de- vice which will not disturb the air mixture of the combustion chamber during a charging of waste. VISIBLE EMISSIONS Sec 1.812.(a) Stack Emission. No person, firm or corporation may cause or permit the emission of smoke or particulate matter from the stack or vent of any incinerator in excess of the following 1 Sources of visible emissions from gray or black smoke with an opacity as much as, or greater than, Ringlemann No 1 on the Ringlemann Smoke Chart for a period of three (3) minutes out of sixty (60) minutes of operation 2 Sources of visible emissions other than gray or black with an opacity of No 1 on the Ringlemann Smoke Chart for a period of three (3) minutes our of sixty (b0) minutes of operation 3. 0.2 grains of particulate matter per standard dry cubic foot of flue gas (b) Odor Emission Incinerators shall be designed and operated so that all gases, vapors and entrained effluents shall be maintained at a temperature entering the stack or vent from the incinerator adequate to prevent the emission of objectionable odors Other methods of odor con- trol that are equally effective, when approved, are acceptable PERFORMANCE TEST Sec. 1813 (a) Test A performance test to determine compliance with the Ringlemann smoke and/or an opacity requirement of this Code (Section 1812) shall be witnessed by a representative of the Air Pollution Con- trol Authority who shall authorize the opening of each new incinerator, and each existing incinerator modified or rebuilt -34- ""''~' (b) Particulate The amount of particulate matter emitted from an incinerator shall be determined according to the ASME Power Test Codes, PTC-27 dated 1957 and entitled "Determining Dust Concentration in a Gas Stream" In calculating the amount of particulate matter in stack gas, the loading shall be adjusted to 12 percent carbon dioxide in the stack gas The carbon dioxide produced by burning any liquid or gaseous fuel in auxiliary burners shall be excluded from the calculation to 12 per- cent carbon dioxide. Emissions shall be measured when the incinerator is operating at the maximum burning capacity as defined in Section 1811. (c) Waste Sample A representative sample of the waste normally generated and introduced into the incinerator shall be available for use in the performance tests specified in this Section An amount of materi- al sufficient for ninety (90) minutes continuous operation of the in- cinerator at full-rated capacity for the refuse to be handled, shall be provided by the user for the test. PERMIT Section 1814 A permit shall be obtained from the Mechanical Inspection Department before the installation of any incinerator or the modification or rebuilding of an existing incinerator An application for permit to install, modify or rebuild shall be made in writing by the vendor and accompanied by plans and specifications covering the unit. To qualify for a permit, new incinerators shall comply with the following requirements (a) UniC Chambers. Unit shall be a multiple chamber incinerator as defined in Section 1800 (b) Unit Lining. All chambers of the unit shall be fully lined with a minimum. of four and a half inches (4-1/2") of fire brick or refractory (c) Unit Case Unit shall be fully steel-cased with adequate insu- lation between steel casing and interior refractory so that no part of the casing shall exceed a temperature of two hundred (200) degrees F when the unit is operated at full-rated capacity. Steel incinerator stacks shall be lined with insulating refractory and not exceed the ex- ternal temperature of two hundred (200) degrees F. (f) Burners Unit shall employ at least one primary and one second- ary burner Burners .shall be capable of pre-heating and operating in compliance with Section 1812 (e) Combustion Air Unit shall include positive means of supplying primary and secondary air for combustion in an amount not less than 150 percent theoretical air for combustion of the type refuse to be burned at full-rated capacity of the unit APPROVAL Sec 1815. Issuance of a permit will not constitute approval of the incinerator by the Air Pollution Control Authority Approval to operate the incinerator will be issued by the Air Pollution Authority after sat- isfactory compliance with Section 1812 and Section 1813. OPERATION Sec 1816 Permission to operate the unit may be revoked at any time by the Air Pollution Control Authority in the event the unit is not maintained and operated in compliance with Section 1812. OTHER TYPES Sec. 1817. Incinerators of types other than those regulated above shall be constructed and installed in accordance with the requirements of the Building Code, except that special large-capacity incinerators and refuse burners used in connection with sawmills and woodworking plants and other applications shall have special approval of the Building. Official. -31- ,~ , ~ , Sec. 1903 by revising the section to include commercial dryers CLOTHES DRYERS Sec 1903.(a) Exhaust Duct Where a clothes dryer is connected to a moisture exhaust duct, it shall be installed in accordance with manufac- turer's instructions and recommendations. The size shall not be reduced. A clothes dryer moisture exhaust duct shall not be connected into any vent connector, gas vent, or chimney. Ducts for exhausting clothes dryers shall not be put together with sheet metal screws or other fastening means which extend into the duct. Moisture exhaust ducts shall not terminate beneath the building or in the attic area. (b) Domestic Clothes Dryers. Domestic clothes dryers shall be ex- hausted to the outside if located in an interior living area or an area containing fuel-burning appliances. (c) Commercial Clothes Dryers All commercial clothes dryers shall exhaust to the outside Exhaust may be through the wall or roof, provided with an approved lint catcher, terminating in a rainproof outlet Combustion air for fuel-fired dryers shall conform to the require- ments of Table 6-A Combustion air shall be taken from the outside. In addition, circulating air for the dryers shall also be taken from the outside A minimum area. of one (1) square inch shall be pro- vided for each ten (10) cubic feet per minute of dryer air. Duct for inlet or discharge air shall conform to Chapter 6 Access and a minimum clear passage of two feet (2' ) shall be avail- able at the rear of units for servicing the dryer. Sec 1905 Replace all of Sec 1905 DUCT FURNACES - IN COOLING SYSTEMS - FUEL BURNING Sec 1905 (a) Duct Furnace Location. Fuel burning duct furnaces shall not be installed on the negative pressure side of a blower but may be installed on the positive pressure side and downstream from cooling coils or air washers if the heating element is made of corrosion- resistant material. Stainless steel, ceramic-coated steel, or an aluminum-coated steel in which the bond between the steel and the alumi- num is an ironaluminum alloy, are considered to 6e corrosion-resistant. Air washers operating with chilled water which delivers air below the dew point of the ambient air at the appliance are considered as cooling systems (b) Approval. All fuel burning duct furnaces shall be approved and carry the seal of the American Gas Association (AGA) A plate indicating the approved clearances shall be mounted on the heater (c) Condensate Drain. Furnace shall have a condensate drain outlet in the bottom of the unit. Drain outlet shall discharge through a non- ferrous line to a floor drain, or other approved drain outlet (d) Safety Devices. Each duct heater shall be equipped with a limit switch, having a top setting of 250 degrees Wiring to gas valve shall be installed in such a manner that the gas valve will not open unless the fan circuit is energized An air flow switch, suitable for system velocity, shall be located in the duct between the fan and heater and incorporated in the gas valve wiring circuit to assure the flow of air through the heater before the main gas valve opens -32- (e) Supports Heaters shall be erected in accordance with their listing, and shall be safely and adequately supported with due consider- ation given to their weight Hangers, brackets and stands shall be of non-combustible material (f) Access Panels The ducts connected to duct furnaces shall have removable access panels on both the upstream and downstream sides of the furnace -- minimum size of access panels 11' x 13" Sec 1906 by adding new section following Sec 1905 INFRA-RED HEATERS Sec. 1906. Direct vented gas-fired heaters (Infra-Red), not requir- ing an individual flue pipe, shall be installed only in spaces which have a minimum infiltrat-ion of one air change per hour for general ven- tilation Provision shall be made for ventilation air to be discharged from high points under the roof and other approved location See Sec 807 (c) for further location requirements and see Sec. 605 for combustion air 1 Threshold valve of C02 shall not exceed 5,000 ppm in accordance with ASHRE GUIDE Minimum ventilation requirements to maintain this con- dition when burning either natural gas or propane is 4 2 CFM per 1,000 Btu's Exhaust opening for removing flue products shall be above the level of the infra-red heaters 2. When automatic recycling controls are not an integral part of the heating unit, it shall be furnished with 100 percent shut off 3 Infra-Red heaters, when vented to the outside of the enclosing building, shall be vented with a listed vent pipe and cap Method of venting shall conform to the manufacturer's recommendations or the vent cap shall be increased one size larger than the vent pipe using an ap- proved adaptor Sec 2002. Add an exception to Sec 2002(d) EXCEPTION That portion of a duct directly above the food prepara- tion area, from the ceiling penetration through a roof or exterior wall and which does not penetrate a floor above or adjacent tenant wall may be protected by insulating with a material having a tem- perature rating with a minimum of 1200° F. Sec 2003 (a) by adding an exception to first paragraph EXCEPTION Those establishments using cooking. equipment designed for domestic use, excluding griddles -and deep fat fryers, are re- quired to meet only those requirements for domestic equipment in Sec. 1901 and. 1902.. Sec 2003 (b) by adding a new second paragraph Thermal recovery units or other devices may be installed in ducts or hoods or located in the path of travel of exhaust products when spe- cifically approved or listed for such use. Such devices shall not in- crease the fire hazard, nor shall it allow an accumulation of grease buildup. Sec 2003 (e) by adding an exception following the first paragraph EXCEPTION Grease filters in a non-canopy hood, located above the cooking surface having less clearance than required by Table No 20-A shall be tested and listed for its clearance and shall be approved by the Building Official. -33- e°:. R~ . ., Sec 2003 (g) by adding Exception EXCEPTION: Type I and Type II commercial hood exhaust systems may have a minimum of two-thirds of the listed air quantity when de- signed by an engineer, registered by the State of Texas, and approved by the Building Official. The air quantity must be of a sufficient amount to provide for capture and removal of all grease, heat and moisture laden vapors Test data or performance or both, acceptable to the Building Official, shall be provided upon request Sec 2003 (i) by adding a last sentence. Makeup air from outside shall be washed and/or filtered before en- tering a food preparation area Sec. 2004 (b) by adding a second paragraph with 12 items listed The extinguishing equipment shall include the following 1 Automatically operated fixed pipe systems, or other automatic systems specifically listed for the hazard, Listed fire-extinguishing systems shall be installed in accordance with the terms of their listing and the manufacturer's instructions Other fire-extinguishing equipment shall be installed in compliance with the applicable standards 2 Approved portable inert gas or dry chemical extinguishers 3. A permit shall be obtained from the Building Inspection Division before the installation of a fire extinguishing system is started The hood and exhaust system must be approved by the Building Official before the installation of a fire-extinguishing system. 4 Only licensed and permitted installers employed by certified and registered firms shall install U.L. approved. automatic fire-extinguishing systems 5 Plans of the fire-extinguisher system, indicating the U,L ap- proved system model identification, and all other details including noz- zle and link.. locations, shall be submitted by a State certified firm to the Building Inspection Division before a .permit will be issued b. All cooking. equipment located under exhaust hoods shall have. automatic fuel and heat shutdown in accordance with the following An automatic gas shutoff valve must be installed to shut off all gas in the event of system. activation. It shall require manual reset to restore the gas supply to equipment An automatic electric shutoff shall be installed on all electri- cally heated fat fryers, which must interrupt the electrical supply upon system activation 7 The certified fire-protection installer shall furnish automatic electric micro-switch shutoff, or approved equivalent, and shall insure that electrical wiring is installed in a completely operable condition and is ready for testing as required under this section. 8, The system extinguisher pressure indicator shall be placed on the same floor area as the hood to be protected, and at a height that is visible and readable at all times This indicator shall show when the system has been actuated. 9 Each automatic fire-extinguisher system shall have a remote man- ual release cable pull, with a lead seal and seal wire which is broken whenever the pull is used Pull shall be installed at a height conve- nient for manual operation (recommended height 5') It shall be located near the hood area, away from the hazard, either adjacent to or in the pathway of exit Tripping action of pull shall be by mechanical means Pull shall be clearly defined by means of a wall sign located directly above it _34- .,.~ 10. All fire detector devices and extinguisher nozzles located for protection of the cooking surface shall be placed on the cooking side of the grease filters Each fat fryer shall have an individual detector lo- cated and centered directly above it All plenum and duct detectors shall be located as required by manufacturer's drawings 11. The automatic system shall have not less than a minimum weight of 20 pounds and the portable fire extinguisher shall not be less than 5 pounds 12 Upon completion of the installation of an automatic fire ex- tinguishing system or an addition thereto, the certified firm shall, be- fore the system is placed in use, perform an operating test in confor- mance with the requirements of the Building Official. Add Chapter 25 CHAPTER 25 INSULATION - MECHANICAL INSTALLATIONS INSULATION DEFINITIONS Sec. 2500 Certain words and terms used in this section shall mean as follows THERMAL CONDUCTIVITY (K-FACTOR) - The time rate of heat flow through one square foot of a homogeneous material one inch thick, when there is a temperature difference of one degree F. between the opposite faces of the material expressed in Btu/hr per square foot, per degree F , per inch. THERMAL CONDUCTANCE (C-FACTOR) - The time rate of heat flow through a homogeneous material of other than one inch thickness, or through a non-homogeneous construction such as an air space, expressed in Btu/hr., per square foot, per degree F temperature difference K = C-Factor for a specific thickness Inches of nominal thickness THERMAL RESISTANCE (R) - The measure of the resistance of a material or building component to the passage of heat The resistance value (R) of mass-type insulations shall not include. any value for re- flective facing The "R" factor is the reciprocal of the conductance "C" or the "U" factor R = 1 C U FACTOR - The total heat flow through a given construction assem- bly, air to air, expressed in Btu/hr per square foot, per degree F. temperature difference PERM RATING - The water vapor permeance of a sheet of any thickness (or assembly between parallel surfaces) is the ratio of water vapor flow to the vapor pressure difference between the surfaces, measured in perms DUCT INSULATION REQUIREMENTS See 2501. (a) Duct Insulation. Every supply and return air metal duct and/or plenum system of a heating and/or cooling system shall be insulated with not less than the amount of insulation set forth in Table No 25-D -35- .,.. - ~. `~. ~ ~ ~ s EXCEPTION Duct and plenum systems used exclusively for evaporative cooling systems 1 All insulation, ducts, tapes and adhesive material shall have a mold, humidity and erosion resistant face, where applicable, meeting the requirements of U M.C. Standard No. 10-1 All such materials shall have a flame-spread rating of not greater than 25 and a smoke developed rating of not greater than 50 They shall be so labeled or identified with printing, acceptable to the Building Official, on the facing of the fiber glass insulation products and on the product or container of accessory items TABLE 25-D MINIMUM INSULATION REQUIREMENTS FOR PLENUM SPACES AND METAL AIR CONDITIONING DUCT SYSTEMS Insulation Mfgr Minimum DUCT LOCATION Nominal R Value 1. Conditioned air supply duct and return duct systems exposed to out- side temperature and in attic spaces 7 2 Conditioned air supply duct .and return duct systems located in mechanical equipment rooms, furnace enclosures, shaft enclosures, or such other spaces connecting with unconditioned ambient air 6 Conditioned air supply duct systems in exterior walls, and ventilated crawl spaces 3 Conditioned air supply duct systems in unventilated roof/ceiling, other than attics, floor/ceiling spaces and interior walls 5 Return air duct systems in exterior wall spaces 4 Conditioned air supply duct systems located in concealed building spaces used as a duct or plenum. 4 Return air duct systems in crawl space s 5 Conditioned air supply and return duct systems located in nonconcealed conditioned spaces Non Required "NOTE 1 Insulation may be omitted on a maximum of six (6) feet length of branch or run-out ducts to a ceiling air diffuser and on the diffuser, itself, if such is located within a concealed, conditioned space that forms a plenum for circulating air " (b) Insulation Values For the purposes of Table 25 D, the following insulation materials shall be manufactured as having R values as shown in Table 25-F. -36- ~" .~ ,J 6. TABLE 25-F INSULATION R VALUES Manufacturers Nominal R Values Insulation 7 6 S 4 Materials Nominal Thickness in Inches Duct Wrap-Faced Fiberglass 2" 2" 1-1/2" 1-1/2" Duct Liner-Glass Fiber 2" 2" 1-1/2" 1" Duct Systems-Glass Fiber* 1-1/2" 1-1/2" 1" 1" Duct Rigid Board-Faced Glass Fiber, 3# thru 6~~ density 1-1/2" 1-1/2" 1" 1" Rubber based or plastic based close cell material 1-1/2" 1'1/4" 1-1/4" 1" *NOTE See Section 1002 (b)(1) for fiberglass duct system requirements (c) Duct Wrap-Faced Fiberglass Insulation Installation of duct wrap-faced fiberglass products shall conform with the following 1 All duct wrap-faced fiberglass type insulation applied external- ly to a duct system, which is located in or on a building and provides air supply for heating and/or cooling, shall be faced with a permanent vapor barrier composed of a foil scrim kraft material having a maximum perm rating of 0 OS 2 Insulation on rectangular ducts over 24" wide shall be provided with suitable mechanical fasteners at no more than 18 0 C , to secure insulation on the bottom of the duet 3. All duct wrap on round duct shall not be more. than 1/2" less than labeled thickness after application. The same insulation thickness applies to rectangular duct except on the corners, in which area 3/4" thickness is acceptable.. 4 The facing. shall have a minimum 2" tab on the. longitudinal and circumferential joints for lapping and stapling. Facing tabs shall be sealed with adhesive and stapled on not over 3" centers All punctures and tears in the vapor barrier facing shall be sealed with an approved adhesive and covered with facing material. 5. Insulation of the duct systems which are exposed to weather shall be vapor sealed and additionally weather proofed as follows Apply a coat of weatherproof mastic and embed into the wet tack coat a layer of open weave glass cloth Smooth membrane to avoid wrinkles- and overlap all seams at least 2" Apply a finish coat of the mastic to a minimum thickness of 1/8". 6. Duct wrap shall be interrupted at fire or smoke dampers. Also shall be interrupted at heat sources in a duct system involving electric resistance or fuel-burning heaters External duct wrap insulation shall not extend through those walls, floors or roofs required by the Building Code to have a fire resistance rating The insulation shall be sealed to the wall, floor or roof to form a vapor proof connection. (d) Duct Liner All duct liner shall be coated on the air flow side with a fire-resistant coating tightly bonding the surface fibers Duct lining, when used as insulation, shall be continuous in all portions of the duct except at fire or smoke dampers and at heat appliances. -37- ? .+ r. d . ~.l A` ~ . t. .~ Application of lLner to duct shall be by means of 100% coverage with adhesive and the use of mechanical fasteners in accordance with SMACNA Standard All leading edges and transverse joints shall be coated with adhesive PIPING INSULATION REQUIREMENTS Sec. 2502 (a) Pipe in Buildings All piping requiring insulation installed to serve buildings and within buildings shall be thermally in- sulated in accordance with Table 25-G and this Section. Pipe insulation or jackets used on steam or hot-water pipes shall be of noncombustible materials Composite of insulation or jackets and lap-seal adhesives shall have a flame spread of not greater than 25 and a smoke developed rating of not greater than 50 (See Table 5-A, Foot- note No 11 ) EXCEPTION Piping underground or outside the structure need not meet the 25/50 flame and smoke requirement. TABLE 25-G MINIMUM PIPE INSULATION REQUIREMENTS Insulation Thickness in Inches Temper- for Pipe Sizes Piping System ature Runouts 1" and 1-1/2 2-1/2 8" and Types Range, Up to 2" Less 2 4 5 & 6 Larger F ** Heating Systems Steam & Hot Water High Pressure/Temp 306-450 1-1/2 1-1/2 2 2-1/2 3-1/2 3-1/2 Medium Pressure/Tp 251-305 1-1/2 1-1/2 2 2-1/2 3 3 Low Pressure/Temp 201-250 1 1 1-1/2 1-1/2 2 2 Low Pressure 120-200 1/2 1 1 1 1 1-1/2 Steam Condensate Any 1 1 1 1-1/2 1-1/2 2 (No Feed Water) Cooling Systems Chilled Water, Refrigerant,. or Brine 40-65 1/2 1/2 3/4 1 1 1 Below 40 1 1 1-1/2 1-1/2 1-1/2 1-1/2 * See (b) and (c) ** Runouts to Individual Terminal Units (not exceeding 12' in length) NOTE Piping insulation is not required in any of the following cases 1 Piping installed within HVAC equipment 2.. Piping at temperatures between 65°F and 120°F 3. Piping installed under slabs, in basements, cellars or unventilated crawl spaces with insulated walls in one and two-family dwellings (b) Other Pipe Insulation Thicknesses Insulation thicknesses in Table 25-G are based on insulation having thermal resistances in the range of 4.0 to 4 6 per inch of thickness on a flat surface at a mean temperature of 75°F Minimum insulation thickness shall be increased for materials having R values less than 4.0 or may be reduced for materials having R values greater than 4 6 per inch of thickness 1 For materials with thermal resistance greater than R = 4 6, the minimum insulation thickness may be reduced as follows 4 6 x Table 25-G Thickness =New Minimum Thickness Actual R r -38- ,~: ,.~ ~. 1 .,~ 2. For materials with thermal resistance less than R = 4 0, the minimum insulation thickness shall be increased as follows 4 0 x Table 25-G Thickness = New Minimum Thickness Actual R (c) Vapor Barrier. Chilled water, refrigerant, and brine lines shall be insulated with a material which will have a vapor barrier jacket, to eliminate condensation in an ambient air temperature of 90°F 80% relative humidity in zero air velocity 1 Except as otherwise noted, underground piping conveying a vapor or fluid which will be used to provide heating or cooling shall be in- sulated, vapor sealed and water proofed. 2. Underground pipe insulation shall be coated with an approved fiberous mastic coating, at a rate of 1 gallon per 50 square feet of outer insulation surface. Apply with spray, glove or brush After four hours, apply a second coat at the same rate and embed a layer of glass fabric into the mastic After 3-4 hours, a final coating of mastic shall be applied at the same rate to completely cover the glass fabric. (d) Condensate Drainpipes. Condensate drain lines shall be insu- lated with a minimum of 3/8 inch thickness of foamed plastic, rubber based foam or other approved insulation which shall be installed on pip- ing material. without longitudinal cuts Circular joints shall be sealed with an approved adhesive. (e) Humidifier Water Lines. Humidifier water supply pipe installed in spaces exposed to outside air temperature. shall be insulated with a minimum of 3/8 inch thickness of foamed plastic, rubber based foam, or other approved insulation. All joints shall be sealed ATTIC OR ROOF INSULATION Sec 2503 Attic space or roof shall be insulated with a minimum of the equivalent of three and one-half (3-1/2") inches of mineral wool having a conductivity of not more than 0.32 Three and one-half (3-1/2") inches of fiberglass or rock wool bats will meet this requirement. (R-Value 11) Add Chapter 26 CHAPTER 26 FIRE ASSEMBLIES GENERAL Sec 2600 Fire, Smoke and Ceiling Dampers shall comply with the requirements of this chapter, U B C. Standard No. 43-7 (reprinted in this Code) and the Building Code, Volume I, for the location, construc- tion and installation of dampers used for the protection of rated parti- tions, walls, floors, ceilings and floor-ceiling or roof-ceiling assem- blies when required to be hourly rated by the Building Code, Volume I The damper location shall be shown on the plans when submitted for ap- proval as required by this code. Suitable openings with tightly fitted covers shall be provided to make fire dampers accessible for inspection and shall be large enough to permit maintenance and resetting of the damper. LOCATION Sec 2601 (a) One Hour Assemblies One (1) hour or less rated fire- resistive assemblies penetrated by ducts shall be protected by one (1) hour or greater fire-resistive rated fire, smoke or ceiling dampers -39- G'° ~` • ~ , , .~~< ~ r (b) Two Hour Assemblies Two (2) hour rated fire-resistive assem- blies penetrated by ducts shall be protected by one and one-half hour (1-1J2) rated fire-resistive fire, smoke or ceiling dampers. (c) Three and four hour assemblies. Three (3) and four (4) hour rated fire-resistive assemblies penetrated by ducts shall be protected by three (3) hour rated fire, smoke or ceiling dampers, except four (4) hour area and occupancy separation walls shall not be penetrated, (d) Damper Location Fire and smoke dampers shall be located and centered within the structural confines of a fire-resistive rated floor, roof or wall. Operators for smoke dampers are not required to be located within the confines of a fire-resistive floor, roof or wall. (e) Damper Identification Identification of Fire Assemblies. All fire assemblies having fire protection ratings shall bear a label or other identification showing the rating thereof. Such label shall be is- sued by an approved listing agency and shall be permanently affixed The label shall be applied at the factory where fabrication and assembly are done Inspection shall be made by an approved inspection agency during fabrication and assembly See UBC Standard No. 43, Section 43 714 for labeling of fire assemblies (f) Access and Inspection Doors. All fire assemblies shall be in- stalled with an access door Access doors shall be sized and installed in such a manner as to provide ready access Co the damper for examina- tion, maintenance or replacement of the fusible link and. the catch for f-ire or ceiling dampers, also to the motor and operating mechanisms of smoke dampers Ready access means without the removal of ducts, hangers, piping, conduit, etc , or the use of tools for the removal of duct ac- cess door (See Sec 420 for definition. of readily accessible). EQUIPMENT ROOMS AND MACHINERY ROOMS Sec. 2602.(a) Rooms Housing Boilers or Central Heating Plants In accordance with Sec 60$ and 1312 of the Building Code, Volume I, ducts piercing rooms housing boilers or central heating plants where the largest piece of fuel-fired equipment exceeds 400,000 Btu/h input, shall be protected by dampers having a fire or smoke resistive rating of one (1) hour or greater, for interior separation walls and three-quarter (3/4) hour protection for exterior openings when Located below openings in another story or if less than ten (10) feet from ather doors and win- dows of the same building (b) Machinery, Rooms Duct piercing the one (1) hour fire-resistive interior construction of machinery rooms shall have all openings pro- tected with fire assemblies having a one (1) hour fire protection rating (Sec. 1507) CORRIDOR PROTECTION Sec 2603. Ducts penetrating walls of corridors serving a Group R, Division 1 or Group I Occupancy having an occupant load of 10 or more and walls or corridors serving other occupancies having an occupant load of 30 or more shall be protected by fire dampers having a fire resistive rating of one (1) hour or greater. (Ref Sec. 3305 (g) of the Building Code). EXCEPTIONS (1) One-story buildings Group B, Division 4 Occupancies. (2) Corridors more than 30 feet in width when occupancies served by such corridors have at least one independent exit from the corridor (3) Ducts penetrating fire-rated corridor walls that continue across the corridor without opening into the corridor, but the wall openings shall be fire stopped on all sides of Che duct. (4) Where the Building Code allows corridors to be non-protected construction (Ref. Sec 3305 (g) of the Building Code) -40- ,r ..,'. ,g,. e'=' Ff;; .,x• i SHAFT ENCLOSURE {,.~ ±', 3 Sec 2604 Ducts piercing walls of shaft enclosures described in Sec. 1706 (b) Exception 2, of the Building Code, Volume I, shall be pro- tected by fire or smoke dampers having a resistive rating of one (1) hour for opening through one (1) hour walls and one and one-half (1-1/2) hours for opening through two (2) hour walls EXCEPTIONS 1. For Subducts - Where direction of air flow is up- ward, subducts at least 22 inches in length may be carried up in- side the shaft enclosure from each inlet, in lieu of dampers Subducts shall be constructed of the material required for ducts in Chapter 10 of the Mechanical Code. 2. In other than group "I" Occupancies, of 3 or more floors an enclosure will not be required for openings which serve only one adjacent floor and are not connected with openings serving other floors and which are not concealed within the building construc- tion, but if the duct is concealed it must be rated structure and the opening must be protected. 3 In one and two story building of other than Group "I" Occupan- cies, shafts for ducts which extend through not more than two floors need not be rated and openings from the shafts need not be protected AREA AND OCCUPANCY SEPARATION Sec 2605 Fire dampers shall be installed in ducts piercing area or occupancy separation walls, as described in Sec 503 including EXCEPTIONS of the Building Code.. All openings in required occupancy sep- aration shall be protected by fire-assemblies having fire-protection ratings as follows One-hour Fire-resistive construction - one hour assembly, Two-hour Fire-resistive construction - one and one-half hour assembly, Three-hour Fire-resistive construction - three hour assembly, Four-hour Fire-resistive construction - no opening allowed PROPERTY LINE LOCATION Sec. 2606. Wall and Opening Protection of Occupancies Based On Location On Property Exterior openings shall conform to Sec 504.(b), 1803, 1903, 2003, and' 2103. Tables 5-A and 17-A of the Building Code, Volume I, requires walls having a fire resistance rating of one (1) and two (2) hours and per- mitted to be pierced by ducts shall be protected by means of a fire or smoke damper having a three-fourth (3/4) hour fire-resistive rating Occupancies requiring four (4) hour fire resistance rated exterior walls shall have a permitted opening protected by a fire or smoke damper having a three (3) hour fire-resistive rating (Tables 5-A of the Build- ing Code). HORIZONTAL EXIT AND EXIT ENCLOSURES INCLUDING STAIRWAY AND RAMP ENCLOSURES Sec. 2607 Ducts piercing horizontal exit walls as described in Sec. 3308(b) of the Building Code, shall be protected by fire-assemblies having a fire-resistive rating of one and one-half (1-1/2) hours STAGE - PROSCENIUM WALL OPENING Sec. 2608 Duct or vent opening in a proscenium wall shall be pro- tected with an approved fire damper having a (1-1/2) one and one-half hour fire-resistive rating (Ref Building Code Sec 3904) -41.- -;, ~~'~ , _ ~ , ~, 2~y, :~ ,, a - ~_ ~,, .. ~,; r. 4 This fire damper shall be located where the duct or vent passes through the proscenium wall and shall be operated by fusible links located on both sides of the wall, both inside and outside of the duct or vent. (Ref Building Code Sec 605) CEILING PENETRATIONS Sec 2609.(a) Ceiling Protection Ceilings forming required contin- uous fire-resistive membranes for structural member protection shall have approved ceiling fire dampers installed at all duct openings re- gardless of size Ref Building Code Sec 4303(b)(6). (b Secondary Ceiling Protection When all air movement is effec- tively stopped inside of the duct at the start of a fire, an approved fire-resistive tested design may be used in lieu of a ceiling fire- damper (c) Floor-Ceiling or Roof-Ceiling Openings penetrating the ceiling of fire-resistive floor or roof-ceiling assembly shall be protected with fire or smoke dampers having a fire-resistive rating of one and one-half (1-1/2) hours Reference Building Code Sec. 4305 FLOOR PROTECTION Sec 2610. Openings in floors that are required to be fire resistive- shall. be protected by an approved fire assembly or the duet or vertical opening shall be enclosed in a fire-resistive shaft with the time period shown in Table No. 17-A of the Building Code Reference Building Code Sec 4305 ROOF PROTECTION Sec 2611. Sec. 4305 (c) of the Building Code permits fire- resistive roofs to have the same openings as allowed for floors INSTALLATION Sec 2612 Fire dampers shall be installed so as to provide an ef- fective barrier to air flow when in a closed position. Installation shall be in accordance with the manufacturers instructions and the test- ing agency listing The instructions shall include directions for mount- ing and for joining with duct materials Where the instructions require the use of sleeves with perimeter mounting angles attached to the sleeve on both sides of the wall opening, the connecting duct shall terminate at the sleeve with a break-away joint. The minimum metal thickness. of the sleeve shall be No 16 gage for dampers with dimensions not exceed- ing 24 inches in height nor 36 inches in width. For all larger sizes 14 gage metal is required (Reference UBC Standard No 43-7) EXCEPTIONS 1 Sleeves in gages less than required above may be indicated in installation instructions when the damper and sleeve have been tested and listed in combination and provided that S-type slip joints are indicated as the means of connection be- tween the sleeve and duct, and provided that the sleeve gage is not less than the duct gage required by the Uniform Mechanical Code 2. The installation instructions for fire dampers tested and listed with integral frame and sleeve of sufficient width to per- mit direct attachment of perimeter mounting angles on each side of the wall opening are not required to indicate the use of sleeves, provided the gage of the damper frame conforms to the requirements for sleeves. -42- .A ER•FILE 1 .- CITY MANAGER 1 ' /j 7J 7/ ~ ACCOUNTING 2 ~/J/~ ®~a ,/'I/~1-71 `•// (~®IVW~~~I/ ~®~~lL/IV~IV~L/'VW~~®~~ TRANSPORTATION~PUBLIC WORKS-6 ~ U 1(~Q ((/LLO.I/IV v 1//V DEVELOPMEN" DATE REFERENCE SUBJECT Adoption Of the 1982 Edition Of PAGE 3 8/30/83 NUMBER G-5733 the Uniform Mechanical Code, As 1 ~ o, Amended -._.__ The Fort Worth City .Council adopted a Mechanical Code in 1970 This code was modeled from the Uniform Mechanical Code published by the International Conference of Building Officials (ICBO) Local amendments were added to form the Fort Worth Code ICBO updates the model code every three years, and the Mechanical Board and City staff review each new edition The 1982 edition of the Uniform Mechanical Code has been reviewed to determine how it differs from our present requirements. It was noted that Chapters 11 and 12 have been revised in their entirety For the most part, the changes are editorial to clarify the intent of the Code and to allow new materials and new methods of installation The Mechanical Board has recommended that the local amendments which have been a part of the Code for the past several years be ret-wined so as not to create undue hardship on remodeling of existing structures. These local amendments also include 1. The Fort Worth Mechanical Contractors Licensing requirements, 2 Rules and regulations for the Mechanical Board of Appeals, 3 Added information taken from the Building Code in order for it to be available to engineers and contractors using the Mechanical Code, and, 4 Increasing license and registration fees This proposed code does not change the effect of construction cost A public hearing on the proposed Mechanical Code was held by the Mechanical Board on August 11, 1983 The hearing was advertised and copies of the proposed ordinance were sent to local organizations with an interest in the Mechanical Code. There were no objections to the proposed changes. Recommendation It is recommended that the 1982 Uniform Mechanical Code, as amended, be adopted as the Mechanical Code of the City of Fort Worth, to take effect September 1, 1983 APPROVED BY DAI kc CITY COUNCIL A UG S0 1983 // //~~ ''9~ !`G~.~v~l.. ~~~~u~i-~1 City Secretary of one City of F.+~tt ~iV~ct21. Texa.~ SUBMITTED FOR THE .-~ ~ CITY MANAGER'S ~ ~ ' DISPOSITION BY COUNCIL. PROCESSED BY f1FFICE BY ~~ . . / ~~ _/! ~ APPROVED ORIGINATING r' OTHER (DESCRIBE) DEPARTMENT HEAD: JOe Bilardi CITY SECRETARY FOR ADDITIONAL INFORMATION / ~ CONTACT .JOe Bilardi EXt 7850 C sJ ~ / 0 ~ DATE