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1989-1422739L/83089 ORDINANCE NO 89 - /5/z AN ORDINANCE OF THE CITY OF DENTON AMENDING CHAPTER 13 1/2 (MECHANICAL CODE) OF THE CODE OF ORDINANCES OF THE CITY OF DENTON, TEXAS, ADOPTING THE 1985 UNIFORM MECHANICAL CODE WITH CERTAIN AMENDMENTS, DELETIONS, AND ADDITIONS THERETO, PROVIDING FOR A AND CLAUSE, A FOR AN PENALTY NOTR TOILEXCEEDLAFIVE HUNDRED REPEALINGDOLLARS, PROVIDINGPROVIDING EFFECTIVE DATE THE COUNCIL OF THE CITY OF DENTON HEREBY ORDAINS SECTION I That Chapter 13 1/2 of the Code of Ordinances of the ty o enton, Texas, is hereby amended to read as follows CHAPTER 13 1/2 MECHANICAL CODE ARTICLE I GENERAL Sec 13 1/2-1 Adopted The Uniform Mechanical Code, 1985 edition, together with Appendix B thereto, is hereby adopted and designated as the Mechanical Code of the City of Denton, the same as though said volume of such code were copied at length herein, subject to the deletions and amendments enumerated hereafter A copy of such code and appendix shall be maintained by the City Secretary in her office Sec 13 1/2-2 Amendments The Uniform Mechanical Code, 1985 edition, is hereby amended in the following respects (1) Amend Section 103 by deleting the last sentence (2) Amend Section 203 to read In order to determine the suitability of alternate materials and methods of construction and to provide for reasonable interpretations of this code, the Plumbing and Mechanical Board, as established and described in Article II of Chapter 13 1/2 of the Code is created (3) Amend Section 301(b) by adding subsection 6 to read only a building permit shall be required for each new one and two-family dwelling not exceeding 4,599 square feet in floor area and for each new multi-family complex (4) Amend Section 303 by deleting the third paragraph (5) Delete Section 304(c) in its entirety (6) Delete Section 304(f) 3 (7) Amend Section 305(f) to read Reins ections A reinspection fee may be assessed or each inspection or reinspection when such portion of work for which inspection is called is not complete or when required corrections have not been made This provision is not to be interpreted as requiring reinspection fees the first time a job is rejected for failure to comply with the requirements of this code, but as controlling the practice of calling for inspections before the job is ready for inspection or reinspection Reinspection fees may be assessed for failure to provide access on the date for which inspection is requested or for deviating from plans requiring the approval of the building official To obtain reinspection, the applicant shall pay the reinspection fee in accordance with Table No 3-A In instances where reinspection fees have been assessed, no additional inspection of the work will be performed until the required fees have been paid (8) Amend Section 306(b) to read Temorar Connections The Building official may author ze temporary connection of the mechanical equipment to the source of energy fuel for the purpose of testing the equipment or for temporary PAGE 2 use for a period of time not to exceed 60 days provided such energy fuel system meets requirements of the Plumbing or Electrical Code, whichever is applicable, regarding safety (9) Amend Section on Other Inspections and Fees in Table 3-A as follows Other Inspections and Fees 1 Inspections outside of normal business hours $40 00 per trip 2 Reinspection fees assessed under provisions of Section 305 (f) $20 00 per trip 3 Inspections for which no fee is specifically indicated $20 00 per trip 4 Additional plan review required by changes, additions or revisions to approved plans $20 00 (10) Amend the second sentence of Section 503(a) to read Appliances shall not be converted from the fuel specified on the rating plate for use with a different fuel unless the converted appliance is properly relabeled and the conversion is made as recommended by the manufacturer of the original equipment or the conversion equipment (11) Amend the first sentence of Section 504(f) to read Liquified petroleum gas-burning appliances shall not be installed in a pit, basement or similar location where heavier-than-air gas might collect (12) Amend the second and third paragraphs of Section 508 to read as follows glow ior spark or flame capable of igniting flammable vapors may be located in garages provided that (a) the pilots and burners or heating elements and switches of such equipment are located at least eighteen (18) inches above the floor level, and (b) such heating or cooling equipment is located in an approved compartment having a tight-fitting PAGE 3 door assembly adequately sealed to retard the entrance of flammable vapors All combustion air for such installations shall be supplied from outside the building or from a properly ventilated attic space (13) Delete Section 509 (14) Amend Section 602(c) to read Screening Combustion air openings shall be covered w t corrosion-resistant screen of one-fourth (1/4) inch mesh (15) Amend Section 604(c) to read Ducts conveying air from an attic space shall extend at least two (2) inches above insulation or other obstructions The attic space shall be ventilated by fresh air openings or louvers on a vertical wall or at two (2) different levels or elevations (16) Add Section 608 to read Forced Draft or Indirect Draft A liances Forced draft or indirect ra t ue urn ng appliances shall not be located in the same area or room as gravity draft appliances and their sources of combustion air shall be isolated from each other (17) Add Section 609 to read Combustible Air Re uirements The requirements for com ust on air are set ort in Table No 6-A PAGE 4 TABLE NO 6-A COMBUSTION AIR REQUIREMENTS FOR GAS FUEL FIRED APPLIANCES CONDITION NO 1 CONDITION NO 2 (Confined Space) Two (2) openings required one (1) high and one (1) low each having one (1) sq in of free area com- municating with a source of outdoor air for each 4,000 B T U H appli- ance rating with a minimum of 50 sq in per opening one (1) dimension of which shall be at least three (3) inches NOTES (Unconfined Space) 50 Cu Ft of space volume per each 1,000 B T U H appli- ance input rating If the appliance is enclosed in a compartment, permanent high and low openings with a minimum of 50 sq in per opening shall be required, one (1) dimension of which shall be at least three (3) inches If solid or liquid fuel is used, the required area of combustion air opening shall be 1 1/2 times that required for gas burning appliances 2 Definitions (a) Ordinary Construction Tightness - Construction where outside air infiltration rates may qualify the appliance to be installed under the provisions of Condition No 1 or Condition No 2 Frame construction where vapor barriers are not used and where construction points and cracks are not sealed and windows are single pane, double hung, movable, etc (b) Tight Construction - Construction where outside air infiltration rates are insufficient to support proper combustion and Condition No 1 must be used such as where vapor barriers are used and where construction joints and cracks are sealed and where windows are tight fitting, double pane or fixed glass, etc PAGE 5 3 Construction methods of providing combustion air openings will comply with other sections of this code 4 Other conditions for providing combustion air not provided by this table may be used as provided in Chapter 6 of this Code (18) Amend the third paragraph of Section 708 to read An attic or furred space in which a warm air furnace is installed shall be accessible by an opening and passageway as large as the largest piece of the furnace but in no case less than 22 inches by 30 inches continuous from the opening to the furnace and its controls (19) Delete the last sentence of Section 708 (20) Delete subsections (b) through (h) of Section 710 (21) Amend Section 901 to read Every appliance designed to be vented shall be connected to a venting system as specified in Section 902 and such system shall comply with the provisions of this chapter, except as provided in this section Venting systems shall consist of approved chimneys, Type B vents, Type BW vents, Type L vents, plastic pipe recommended by the manufacturer of listed condensing appliances for use with specified models, or a venting assembly which is an integral part of a listed appliance Venting systems shall be so designed and constructed as to develop a positive flow adequate to convey all combustion products to the outside atmosphere Venting systems may be designed in accordance with accepted engineering methods A venting system which is an integral part of the vented appliance and plastic pipe recommended by the manufacturer in installation instructions as suitable for use with listed condensing appliances shall be installed in accordance with the appliance listing manufacturer's installation instructions and applicable requirements of this Code PAGE 6 Gas venting systems serving appliances equipped with draft hoods and appliances listed for use with Type B vents may be designed in accordance with tables in Appendix C, Chapter 9 (22) Amend Section 910 to read An existing venting system shall not be connected to a new appliance unless the venting system com- plies with the requirements of the Code in effect at the time the new appliance is to be connected (23) Amend the first sentence of Section 913 (b) 4 to read Automatically controlled gas appliances connected to a chimney which also serves equipment burning liquid fuel shall be equipped with an automatic nonstanding pilot (24) Amend the first sentence of Section 1002(a) to read Circulating-air and conditioned-air supply for heating, cooling or evaporative cooling system shall be conducted through duct systems constructed of metal as set forth in Table Nos 10-A, 10-B and 10-C, metal ducts complying with U M C Standard No 10-2 with prior approval, or factory-made air ducts complying with U M C Standard No 10-1, PVC, ABS and fiberglass (25) Amend the first sentence of Section 1202(b) to read An unobstructed access space not less than 22 inches in width and 30 inches in height shall be provided to filters, fuel control valves and air-handling units Refrigerant and brine piping control valves shall be accessible (26) Delete Section 1203 (27) Amend Section 1205 to read When a cooling coil or cooling unit is located above the first story where damage may result from condensate overflow, an additional water-tight pan of corrosion resistant metal shall be installed beneath the cooling coil or unit to catch the over- flow condensate due to a clogged primary condensate drain, or one pan with a standing overflow and a PAGE 7 separate secondary drain may be provided in lieu of the secondary drain pan The additional pan or the standing overflow shall be provided with a drain pipe, minimum 3/4 inch nominal pipe size, discharg- ing at a point which can be readily observed This requirement is in addition to the requirements for condensate drainage piping set forth in Section 510 of this code In the event that an auxiliary drain or secondary drain pan cannot be provided, an electric float switch mounted in the primary pan to sense the water level may be used and low voltage wiring to turn off the cooling system shall be provided (28) Add a second paragraph to Section 2003 (a) to read The above requirements shall not apply to domestic type cooking equipment located in day-care facil- ities, churches, employee lunch rooms or similar uses which are no more hazardous than kitchen facilities in an individual dwelling unit Section 13 1/2-3 - Section 13 1/2-9 Reserved ARTICLE II PLUMBING & MECHANICAL CODE BOARD Section 13 1/2-10 Creation There is hereby created a plumbing and mechanical code board consisting of seven (7) members, each to be appointed by the City Council for a term of two (2) years, and to serve at the pleasure of said Council Initially, however, three (3) members shall be appointed for a term of one year and four (4) members shall be appointed for two (2) year terms To the extent that persons are available within this City, the said board shall consist of two (2) licensed master plumbers, two (2) mechanical contractors, two (2) mechanical engineers, and one layman, who shall all reside within the City The initial terms for the members shall be staggered whereby one master plumber, one mechanical engineer, and one mechanical contractor shall have terms expiring on the odd number years, and one master plumber, one mechanical engineer, one mechanical contractor, and the layman shall have terms expiring on the even number years consecutive No appointed member shall serve more than three (3) conse PAGE 8 terms The City Council may appoint ex officio members to this board to have a voice in all matters before it, but who shall have no vote Section 13 1/2-11 Procedure in removal of members from office The City Council may remove any member of the plumbing and mechanical code board during the term for which he was appointed if cause be found The action of the City Council in such matters shall be final Section 13 1/2-12 Chairman, powers and duties generally It shall be the duty of the plumbing and mechanical code board to meet as soon after their appointment as is practicable and organized by selecting one of their members as chairman and another as secretary Regular meetings of the board thereafter shall be scheduled on a monthly basis, except that meetings may be cancelled when there is no business to come before the board Special meetings may be called at any time by the chairman, or by the secretary The secretary shall keep a complete record and minutes of the actions of the board to be filed with the City Secretary Four (4) members of the board shall constitute a quorum for the transaction of business It shall be the duty of the board to make an annual review of the provisions of this chapter, and to recommend any necessary changes and/or improvements to the City Council This review shall include consideration of suggestions from plumbing and mechanical contractors and the public at large, which may be obtained by means of open hearings as well as through the regular channels It shall also be the duty of the board to hear any written complaints made by any plumbing or mechanical contractor, citizen, or otherwise, that may have a bearing upon the efficient enforcement of the mechanical code, and the board shall take such action thereon as may be deemed pproper and within its authority, provide that the same shall not be inconsistent with any laws of the state, of this chapter, or other ordinances of the City Section 13 1/2-13 Appeal to Plumbing and Mechanical Code Board (a) any person, firm, of the company mechanical rinspector aggrieved under this chapter may appeal such decision or order to the plumbing and mechanical code board as set out herein PAGE 9 (b) The powers of the board are hereby extended so as to authorize the board to make reasonable interpretations or rulings in matters properly before it as to the plumbing and mechanical code board as set out herein (c) Every appeal must be filed in writing within ten (10) days from the date of the decision or order appealed from and shall be filed in duplicate with the building official 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 building official to notify the chairperson of the plumbing and mechanical code board and the mechanical inspector (d) The amount of the fee for appeals shall be $50 00 appeal was taken (e) relevant The lrecordsfandadata upon which the t all (f) An appeal shall stay all proceedings in connection with the decision or order appealed from unless and until the mechanical inspector shall have certified to the board, after notice of appeal has been filed, that a stay would cause hazard to life or property In such case, pro- ceedings pursuant to the decision or order of the mechanical inspector shall not be stayed except by order of the board or by a restraining order issued by a court of competent jurisdiction (g) The board shall fix a reasonable time for the hearing of an appeal, giving notice in writing to the parties in interest and shall reach its decision within three (3) days from the close of the hearing Appellant may appear before the board in person, by agent, or by attorney and may present material witnesses The board may require additional data and tests necessary for adequate decision of the appeal, and continue the hearing therefor (h) The plumbing and mechanical code board shall have the power in all cases appealed to it from decision or orders of the mechanical inspector to reverse or affirm appealed yfrm in No whole of the bthe decision or oard shall vary ordbe inconsistent with the terms or provision of this chapter and as designated all decisions City (i) The mechanical enforce inspector Manager shall orders of the plumbing and mechanical code board regarding the mechanical code PAGE 10 (j) The plumbing and mechanical code board shall have the power to approve alternate and new materials, methods, devices, etc , in accordance with the applicable provisions of this chapter SECTION II Any person who shall violate a provision of this ordinance, or fails to comply therewith or with any of the requirements thereof, or of a permit or certificate issued thereunder, shall be guilty of a misdemeanor punishable by a fine not exceeding Five Hundred Dollars ($500 00) Each such person shall be deemed guilty of a separate offense for each and every day or portion thereof during which any violation of this ordinance is committed, or continued, and upon conviction of any such violations such person shall be punished within the limits above SECTION III That this ordinance shall become effective fourteen UWY-Uays from the date of its passage, and the City Secretary is hereby directed to cause the caption of this ordinance to be published twice in the Denton Record-Chronicle, the official newspaper of the City of Denton, Texas, within ten (10) days of the date of its passage PASSED AND APPROVED this the d-day of 1989 RAY S E ATTEST E IRA LTERS, CITY SECRETARY APPROVED AS TO LEGAL FORM DEBRA A DRAYOVITCH, CITY ATTORNEY BY A ~ _k PAGh 11 i f t S i t I~ I i 1 I ~ i i t, I i i i 1 t ' t i t t I 5 t i I t f i d f r I i I 4 ` t 1 it I i 1 t 1 t