Technical Amendment Final- UMC and UPC — original pdf

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City of Austin 2024 Technical Code Changes UMC & UPC Background The City of Austin updates the technical codes in accordance with the International Code Council (ICC), International Association of Plumbing & mechanical Officials (IAPMO) code cycle schedules. The International Codes are the most trusted source of model codes and standards. 2024 Uniform Mechanical Code Reducing Amendments GOAL: To minimize the number of amendments and return to model code. Reasons for amendments: 1. Council mandated 2. Business needs (chapter 1) 3. Clarification purposes 4. ISO rating Strikethrough means deleted from amendments – underline is a new amendment Amendment 1 104.1.1 Commercial Mechanical Change-Out Program. For buildings not covered under the Residential Code, the building official may establish, by rule, an inspection program for commercial mechanical components identified in this section or a change-out program authorized in other technical or building codes. The buildings must be located within the zoning jurisdiction of the City, outside of the zoning jurisdiction under agreement with a municipal utility district, or where the City provides electrical service. The program applies to replacing roof top equipment; refrigeration equipment; and heating, ventilation, and air conditioning (HVAC) equipment. Amendment 2 CHAPTER 2: DEFINITIONS 202.1.1 Supplemental Definitions. The definitions in this subsection apply throughout this code and amend or supplement the definitions in Chapter 2 Alternate Water Source. Non-potable source of water that includes but is not limited to recycled manufacturing process water, air conditioner condensate, rainwater, storm water, gray water, black water, cooling tower blow down, and foundation drain water. Treatment System. A method, device or process for the treatment of the water quality of cooling tower blowdown, air conditioning condensate, or other onsite alternative water necessary for the authorized end uses provided under city and state permitting requirements contained in Chapters 15 and 16 of the City’s Adopted Plumbing Code & 30 TAC Chapter 210 Subchapter F. Note: These definitions were deleted at AW request. Amendment 3 305.3.1 Gas and Oil-Fired Furnaces. A float-operated automatic control valve shall be installed in the fuel supply line for a heating system that uses a gas or oil-fired furnace. The automatic control valve shall shut off fuel supply when floodwaters reach an elevation equal to the floor level of the spaces where the furnace equipment is installed. A manually operated gas valve that can be operated from a location above the regulatory flood datum (RFD) shall be provided in the fuel supply line to act as a supplementary safety provision for fuel cutoff. Notes: This section was deleted from the amendments, was not part of the model code. Chapter 25-12-53 requires elevation of equipment two feet above design flood elevation with some exceptions making this section only applicable to existing installations located in flood zones. Requires an automatic control valve and a manual valve to shut off the fuel supply to keep fuel out of the water although obsolete due to compliance requirements in 25-12-53. Has existed in the amendments since the implementation of the 1982 UMC on November 20, 1993. Amendment 4 318 cooling systems. Interior spaces intended for human occupancy shall be provided with active or passive cooling systems capable of maintaining an indoor temperature of not more than 80°F (27°C) at a point 3 feet (914 mm) above floor on the design cooling day. The installation of portable cooling systems shall not be used to achieve compliance with this section. Exceptions: 1. Interior spaces where the primary purpose is not associated with human comfort. 2. Group F, H, S and U occupancies. Note: New section added, not covered in model code to improve living conditions in extreme heat cycle. Amendment 5 310.8 Standards for Air Conditioner Condensate Recovery Systems for New Development. Commercial and multi-family facilities constructed after September 5, 2017, with an evaporative cooling tower system with a combined cooling capacity equal to or greater than 200 tons shall use a single and independent condensate wastewater line to collect and use the condensate wastewater for authorized beneficial purposes. For purposes of this section, authorized beneficial purposes include using condensate wastewater for process water; to make up cooling tower water; to flush indoor toilets; to irrigate landscapes; or other approved non-potable water uses. Note: This section and exceptions deleted from amendments and moved to proposed water forward mandate. Amendment 6 318.0 Protection of Openings. A duct opening, such as an exhaust or outdoor air intake, which terminates outdoors, shall be protected with corrosion-resistant screens, louvers, or grilles. Duct openings located in exterior walls shall comply with the Building Code's fire resistance rating requirements for an exterior wall opening. Note: These requirements exist in the model code and the industry standards are also in compliance with the code requirements. Amendment 6 Chapter 4 Ventilation Air 402.3.1 Intake Opening Location. Note: Model code has now incorporated latest addition of ASHRAE 62.1: Table 5.5.1, this table provides intake air minimum separation distance. Amendment 7 405.4.1 Residential Kitchen Exhaust Rate. For intermittent-controlled operations, the exhaust rate shall be not less than 100 ft3/min (47.2 L/s) and 300 ft3/min (142 L/s) for downdraft appliances. For continuous operation the exhaust rate shall be not less than 50 ft3/min (23.6 L/s). Note: This section was amended due to local concerns with over sized equipment that would create installation problems, and this also matches the ASHRAE table Amendment 8 523.0 Hazardous Exhaust Systems. 2024 International Mechanical Code Section 509, subsections, and associated tables and referenced sections. Note: In previous years, this section was inserted into the local amendments, for the purpose of consistency and to capture all the requirements a pointer was created to the source instead of attempting to duplicate. With this change we capture all the hazardous exhaust requirements from one source which is important due to the correlation with the fire code. Amendment 9 524.0 Manicure and pedicure stations. 2024 International Mechanical Code Section 502.20, subsections, and associated tables and referenced sections. Note: Many of us go to nail salons to relax and to be pampered. We don't think of these places as potentially hazardous work environments, yet for many manicurists, regular on-the-job exposure to toxic chemicals is a reality. Workers often experience headaches, dizziness, rashes and other acute symptoms. Some chemicals are known to cause cancer and reproductive, developmental, and respiratory harm" The intent of these suggested modifications is to (1) better clarify the requirements for a source capture exhaust system at manicure and pedicure stations where ambiguity exists, and to (2) better ensure the effectiveness of the exhaust system by specifically requiring makeup air and prohibiting the recirculation of exhausted air so as to provide a healthy, safe environment for nail salon workers and their clients. The industry already provides the equipment to able to provide exhaust at the point of use. Amendment 10 609 Smoke Detection Systems Control. 2024 International Mechanical Code Section 606, subsections, and associated tables and referenced sections. Note: in the past this section was language amended from IMC section 606, for the purpose of consistency a pointer was created to the sources and placing the requirements all in one place. One of the differences will be the smoke detector would be installed in the supply side with this change the new requirement would be on the return side, staff has determined that the important issue is that the detection be installed; either location would be acceptable. Amendment 11 Chapter 18 Fireplaces, Solid Fuel-Burning Equipment, and Other Specific Appliances. • 1803.2 Hearth Extensions • 1803.3 Unvented Gas Log Heaters • 1804.1 Pellet Fuel-Burning Appliances • 1814.5 Sauna Room • 1818.4 Circulating Air Ducts for Forced-Air Warm-Air Furnaces • 1822.1 Kerosene and Oil-Fired Stoves Note: None of these appliances are covered in the UMC, since 2003 we have copied the language directly from the IMC, because these appliance are not covered in the UMC then the IMC would pertain as per adopted language in our building code. With sauna rooms a separate pointer was created due to the large use of this type of appliance to eliminate any confusion. 2021 IBC Amendment, 101.4.2 Mechanical. The provisions of the International Mechanical Code and the Uniform Mechanical Code shall apply to the installation, alterations, repairs, and replacement of mechanical systems, including equipment, appliances, fixtures, fittings, and/or appurtenances, including ventilating, heating, cooling, air conditioning, and refrigeration systems, incinerators, and other energy related systems. The Uniform Mechanical Code supersedes the International Mechanical Code to the extent of conflict. 2024 Uniform Plumbing Code Reducing Amendments GOAL: To minimize the number of amendments and return to model code. Reasons for amendments: 1. Council mandated 2. Business needs (chapter 1) 3. Clarification purposes 4. ISO rating Strikethroughs means deleted from ordinance and returning to model code underline means a new added section. Chapter 25-12: Local Amendments to Uniform Plumbing Code 202.1.1 Supplemental Definitions. LAUNDRY TO LANDSCAPE SYSTEM means an alternate water system that utilizes the collection of gray water discharged from clothes washing machines located at private one- and two-family dwellings for landscape irrigation. Chapter 25-12: Local Amendments to Uniform Plumbing Code 309.6 Private Hydrant Lines. Water lines from a private water main to a private fire hydrant with more than 100 gallons capacity shall have backflow prevention protection as required by Chapter 15-1 (Cross-Connection Regulations ). Note: 309.6 is reverting to model code Chapter 25-12: Local Amendments to Uniform Plumbing Code 3212.0 Elevator sump pumps. If a pump and associated piping and materials required for elevators is installed under See Texas Administrative Code, Title 16, Part 4, Chapter 74 for elevator sump pump requirements., the pump and associated piping and materials must also comply with Sections 322.1 through 322.4. 3212.1 Acceptable discharge location. In a new elevator shaft, Aan elevator sump pump must discharge to the storm system outside of the building, detention pond, or other location approved for each project by the authority having jurisdiction. A hydraulic elevator must be equipped with a hydraulic oil alarm and a secondary containment must be installed and approved for each project by the authority having jurisdiction. Note: The section was deleted and a pointer to the state requirements was created, and 321.1 was left in place because TAC doesn’t provide an acceptable location of discharge. Chapter 25-12: Local Amendments to Uniform Plumbing Code 322.2 Discharge piping. 322.3 Materials. 322.4 Sample port. 411.2 Water closets. 412.1.Urinals. 420.3 Pre-rinse spray valve. Note: Water conservation requirements now align with Austin requirements, these sections were deleted from the amendments and returning to model code. Chapter 25-12: Local Amendments to Uniform Plumbing Code 613.0 Plumbing for multi-family sub-meters. A newly constructed multi-family housing unit or a residential unit in a mixed-use facility must have a single cold water stub out that supplies all fixtures within each dwelling unit that is supplied by the master meter. A City meter or privately-owned water meter must be installed for each newly constructed unit at the time of construction. Each stub out must have a shut off valve immediately ahead of the private meter location. The meter must have a clearance of at least four inches on each side. The private meter must be installed in a location that is accessible for reading, testing, replacement, and inspection. Exception: A multifamily development utilizing alternate or reclaimed water for toilet flushing or development with a centralized hot water system is not required to comply with this section. Note: The exception was extended for using alternate or reclaimed water for toilet flushing Chapter 25-12: Local Amendments to Uniform Plumbing Code 614.1 Requirements for one- and two-family dwelling landscape irrigation installation. A new irrigation system for a one- or two-family dwelling must be designed and installed to include: 1. spray irrigation is that limited to areas that are more than six feet wide (medians, buffer strips, and parking lots islands should not be spray irrigated); 2. above-ground irrigation emission devices that are located at least six inches from impervious surfaces; 3. a master valve for the system; 4. circuit remote control valves have adjustable flow controls; 5. serviceable in-head check valves are adjacent to paved areas where elevation differences may cause low head drainage; 6. a rain shut-off device shuts off the irrigation system automatically at or before ½ inch rainfall; 7. zone valves and circuits that are separated based on hydrozoning; and 8. an isolation valve that is located between the meter and the backflow prevention device. 9. pressure compensating heads unless the static pressure at the backflow protection device is measured at or below forty-five pounds per square inch 10.a mainline pressure regulating valve that complies with ASSE 1003, is located downstream of the backflow protection device if the static pressure at the backflow protection device is measured at or above eighty pounds per square inch. Note: Two new subsections were added to section 614.1 for the purpose of water conservation. Chapter 25-12: Local Amendments to Uniform Plumbing Code 614.1.1 Limitations for one- and two-family dwelling landscape irrigation installation. A new irrigation system for a one- or two- family dwelling permitted must be designed and installed to cover no more than fifty percent of the total landscaped area, including the front and side yard or the back and side yard. Note: Added for the purpose of water conservation. Chapter 25-12: Local Amendments to Uniform Plumbing Code 707.2.1 Two-way cleanout tees. A single rise two-way cleanout tee may be installed with a maximum 18-inch extension to grade. Note: Reverting to model code without a maximum height extension. Chapter 25-12: Local Amendments to Uniform Plumbing Code 710.3 Sewage ejector and pumps. A sewage ejector or sewage pump that receives the discharge of water closets or urinals: 1. must have a discharge capacity of at least 20 gallons per minute (gpm) (1.26 L/s); and 2. 3. 4. in single dwelling units, the ejector or pump must be capable of passing a 1.5 inch (40 mm) diameter solid ball; or in a building that is not a single dwelling unit, the ejector or pump must be capable of passing a 1.5 inch (40 mm) diameter solid ball; and the discharge piping of each ejector or pump must have a backwater valve and valve gate and be at least 2 inches (50 mm) in diameter. Exceptions: 710.10.1 Simplex sumps . A single 1.0 or 2.0 DFU fixture that is not a required plumbing fixture under the Plumbing Code may be served by a single pump or ejector system. 1. A single pump ejector system that serves an accessible break room sink with 1½ inch outlet and a 1½ inch inlet is allowed. 2. A 1½ inch outlet service sink may be drained by a single pump ejector system. Note: Back to model code and leaving the simplex exception as existed. Chapter 25-12: Local Amendments to Uniform Plumbing Code 1007.3 Barrier-type trap seal protection device. A barrier-type trap seal protection device shall protect the floor drain trap seal from evaporation. Barrier-type floor drain trap seal protection devices shall conform to ASSE 1072. The devices shall be installed in accordance with the manufacturer’s instructions. Note: Added a new section for a device that has all the required approvals; also a water conservation device that takes the place of a trap primer, which has not been accepted in the international model code. Chapter 25-12: Local Amendments to Uniform Plumbing Code 1103.5 Sizing of rain piping. The required size of rainwater piping is based on a maximum of five inches of rainfall per hour that falls on a given roof area calculated in square feet. Five inches per hour must be used to size both primary rainwater systems and overflow or emergency rainwater systems. Note: Section deleted, tables 1103.1 and 1103.2 covers the requirements when sizing roof drains, leaders, vertical and horizontal rainwater piping. Chapter 25-12: Local Amendments to Uniform Plumbing Code 1503.10.1 General. This section applies when installing, altering, or repairing a laundry to landscape systems. New Construction. A gravity gray water drainage system shall be installed in new construction in one- and two-family dwelling constructed after January 1, 2025 for future use. A gray water system shall be installed to allow for the separate discharge of gray water for direct landscape irrigation from a cloth washing machine installed adjacent to an exterior wall or a wall perpendicular to an exterior wall. Exception: Where soil conditions do not provide adequate infiltration, where setbacks cannot be maintained, or other such limitations are prohibited by the Land Development Code. Project applicants shall submit documentation satisfactory to the Authority Having Jurisdiction for an exemption. Note: A new water conservation requirement was added to meet city and state mandates. Chapter 25-12: Local Amendments to Uniform Plumbing Code 1503.10.2 System design. A laundry to landscape system must be designed: To include a manifold with a 1”, 3-way accessible diverter valve. The valve to be located in an accessible location and be 3. identified as a gray water system. 4. So that the 3-way diverter valve and piping is supported to relieve any potential stress on the piping when in use 8. With an informational card at least four by six inches in size and containing information specified by Austin Water about the usage of laundry to landscape plumbing which shall be affixed adjacent to the three-way diverter valve. 9. With gray water piping and stub out(s) clearly identified with a label having a purple (Pantone color No. 512, 522C, or equivalent) background and black uppercase lettering. Labeling shall be field, or factory marked as follows: “CAUTION: NONPOTABLE GRAY WATER, DO NOT DRINK”; and 10. For new construction one- and two-family dwellings, a. The inlet of the 3-way valve will require a direct connection from the washing machine drain outlet. b. Outlet one of the 3-way valve will terminate no more than 4” into the washing machine standpipe, c. Outlet two of the 3-way valve will require an air admittance valve then the stub out will terminate outside above finish grade or be located in a valve box when below grade, for future use. Both stub out methods must be labeled with black letters in a purple background. d. The standpipe trap will require periodic use for the purpose of maintaining a water level in the trap to prevent sewer gas release. Note: New subsections were added to 1503.10.2 for the purpose of water conservation and government mandates. Questions/Comments Public Input