Installation, commissioning tests, alarms, labeling, installer qualifications and records

Grounded in the retrieved California Plumbing Code — click a citation to read the verbatim passage:

• CPC § 101.13 High relevance — show source text

  The test shall be ruled successful by the Authority Having Jurisdiction before final approval is granted. S 101.13 Commissioning. Onsite stormwater treatment systems shall be commissioned in accordance with the requirements of Section S 101.13.1 through Section S 101.13.4.

  S 101.13.1 Commissioning Requirements. Commissioning for stormwater treatment systems shall be included in the design and construction processes of the project. Commissioning shall be performed by a person who demonstrates competency in commissioning stormwater treatment systems as required by the Authority Having Jurisdiction. S 101.13.2 Commissioning Plan. The construction documents shall include the commissioning plan for the stormwater treatment system. The commissioning plan shall be approved by the Authority Having Jurisdiction prior to commissioning the stormwater treatment system. The commissioning plan shall include the following:

  (1) General project information.

  (2) Equipment to be tested, including the test methodology.

  (3) Processes to be tested.

  (4) Criteria or process for testing.

  (5) Criteria or process for acceptance.

  (6) Commissioning team contact information.

  (7) Commissioning process activities, schedules, and responsibilities.

  (8) Plans for the completion of functional performance testing, post construction documentation and training, and the commissioning report. S 101.13.3 Performance Testing. Performance tests shall verify that the installation and operation of the

  TABLE S 101.11(2)

  MONITORING PARAMETERS

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  APPENDIX S

  equipment of the stormwater treatment system is in accordance with the approved plans and specifications. The performance test report shall include the equipment tested, the testing methods utilized, and proof of proper calibration of the equipment. S 101.13.4 Commissioning Report. The commissioning report shall be submitted to the Authority Having Jurisdiction.

  S 101.14 Operation and Maintenance Manual. An operation and maintenance manual shall be provided in accordance with Section 1501.6 and shall also include the following:

  (1) Instructions on operating and maintaining the system, including treatment process operations, instrumentation and alarms, and chemicals storage and handling.

  (2) Site equipment inventory and maintenance notes.

  (3) Equipment/system warranty documentation and information.

  (4) As-built design drawings.

  (5) Details on training requirements and qualifications of personnel responsible for operating the system.

  (6) Maintenance schedule. S 101.15 Inspection. Field inspections shall take place during and after construction while the contractor is on-site to verify that the stormwater treatment system components have been properly supplied and installed according to the plans and specifications used for installation. Record drawings shall be maintained with changes to the approved plans by the contractor and available for periodic inspection as needed.

  S 102.0 Definitions.

  S 102.1 General. For the purpose of this appendix, the following definitions shall apply: Challenge Test. The evaluation of a unit treatment process for pathogen log 10 reduction performance using selected surrogate or indigenous constituents. This includes a detailed technology evaluation study conducted to challenge the treatment technology over a wide range of operational conditions. Commissioning. The activities associated with bringing a new process into normal working condition. **Field Verification.

• CPC § 101.13.4 High relevance — show source text

  APPENDIX S

  equipment of the stormwater treatment system is in accordance with the approved plans and specifications. The performance test report shall include the equipment tested, the testing methods utilized, and proof of proper calibration of the equipment. S 101.13.4 Commissioning Report. The commissioning report shall be submitted to the Authority Having Jurisdiction.

  S 101.14 Operation and Maintenance Manual. An operation and maintenance manual shall be provided in accordance with Section 1501.6 and shall also include the following:

  (1) Instructions on operating and maintaining the system, including treatment process operations, instrumentation and alarms, and chemicals storage and handling.

  (2) Site equipment inventory and maintenance notes.

  (3) Equipment/system warranty documentation and information.

  (4) As-built design drawings.

  (5) Details on training requirements and qualifications of personnel responsible for operating the system.

  (6) Maintenance schedule. S 101.15 Inspection. Field inspections shall take place during and after construction while the contractor is on-site to verify that the stormwater treatment system components have been properly supplied and installed according to the plans and specifications used for installation. Record drawings shall be maintained with changes to the approved plans by the contractor and available for periodic inspection as needed.

  S 102.0 Definitions.

  S 102.1 General. For the purpose of this appendix, the following definitions shall apply: Challenge Test. The evaluation of a unit treatment process for pathogen log 10 reduction performance using selected surrogate or indigenous constituents. This includes a detailed technology evaluation study conducted to challenge the treatment technology over a wide range of operational conditions. Commissioning. The activities associated with bringing a new process into normal working condition. Field Verification. Performance confirmation study conducted using challenge testing, including surrogate microorganisms and/or other non-biological surrogates, usually during startup and commissioning. Log 10 Reduction. The removal of a pathogen or surrogate in a unit process expressed in log 10 units of the effluent concentration over the influent concentration (e.g., a 1-log reduction equates to 90% removal, 2-log reduction to 99% removal, 3-log reduction to 99.9% removal, and so on). Log 10 Reduction Target (LRT). The log 10 reduction target for the specified pathogen group (e.g., viruses, bacteria, or protozoa) to achieve the identified level of risk to individuals (e.g., 10 [-4] infection per year). Stormwater. Natural precipitation that has contacted a surface at grade, below grade, or above ground parking surfaces.

  Surrogate. A biological, chemical, or physical parameter used to verify pathogen reductions performances. Validation Report. Report documenting the results of a challenge test conducted during field verification.

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  USEFUL TABLES

  CONVERSION TABLES

• CPC § 101.12.2 High relevance — show source text

  S 101.12.2 Bypass Connection. A bypass shall be provided for the input connection to the stormwater treatment system. The bypass shall be a diverter valve normally open to the stormwater treatment system. The normally closed port of the diverter valve shall be connected directly to the storm drainage system or combined sewer system in accordance with this code.

  TABLE S 101.11(1)

  RISK LEVELS

  • See Section S 101.2 for other uses approved by the Authority Having Jurisdiction.

  S 101.12.3 Overflow Connection. Stormwater treatment overflow shall be connected directly to the storm drainage or combined sewer system in accordance with this code. The overflow shall be provided with a backwater valve at the point of connection to the storm drainage or combined sewer system. The backwater valve shall be accessible for inspection and maintenance.

  S 101.12.4 Fail-Safe Mechanisms. Stormwater treatment systems shall be equipped with an automatic shutdown device of the treatment process in the event of a malfunction.

  S 101.12.5 Flow Meter Totalizer. Buildings with stormwater treatment systems shall include a flow meter totalizer on the treated stormwater distribution system and a flow meter totalizer on the potable make-up water pipeline to the stormwater treatment system. S 101.12.6 Cross-Connection Inspection and Testing. A cross-connection test is required in accordance with Section 1502.0. Before the building is occupied or the system is activated, the installer shall perform the initial cross-connection test in the presence of the Authority Having Jurisdiction. The test shall be ruled successful by the Authority Having Jurisdiction before final approval is granted. S 101.13 Commissioning. Onsite stormwater treatment systems shall be commissioned in accordance with the requirements of Section S 101.13.1 through Section S 101.13.4.

  S 101.13.1 Commissioning Requirements. Commissioning for stormwater treatment systems shall be included in the design and construction processes of the project. Commissioning shall be performed by a person who demonstrates competency in commissioning stormwater treatment systems as required by the Authority Having Jurisdiction. S 101.13.2 Commissioning Plan. The construction documents shall include the commissioning plan for the stormwater treatment system. The commissioning plan shall be approved by the Authority Having Jurisdiction prior to commissioning the stormwater treatment system. The commissioning plan shall include the following:

  (1) General project information.

  (2) Equipment to be tested, including the test methodology.

  (3) Processes to be tested.

  (4) Criteria or process for testing.

  (5) Criteria or process for acceptance.

  (6) Commissioning team contact information.

  (7) Commissioning process activities, schedules, and responsibilities.

  (8) Plans for the completion of functional performance testing, post construction documentation and training, and the commissioning report. S 101.13.3 Performance Testing. Performance tests shall verify that the installation and operation of the

  TABLE S 101.11(2)

  MONITORING PARAMETERS

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  APPENDIX S

• CPC § 8-17 High relevance — show source text

  • Refer to the OPR and BOD documents

  b. Equipment and systems to be tested, including the extent of tests i. Provide a list of equipment and systems to be tested

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 8-17

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  COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

  ii. Describe the range and extent of tests to be performed for each system component, and interface between systems c. Functions to be tested - Provide example functional test procedures to identify the level of testing detail required

         See (Section 5.410.2.4) FPT guidance for more information
  

  d. Conditions under which the test shall be performed - Identify the conditions under which the major operational system functions are to be tested, including: i. Normal operations and part-load operations. ii. Seasonal testing requirements. iii. Restart of equipment and systems after power loss. iv. System alarm confirmations. e. Measurable criteria for acceptable performance - Include measurable criteria for acceptable performance of each system to be tested 4. Commissioning team information - Provide a contact list for all commissioning team members, including but not limited to: i. Owner, owner’s representative. ii. Architect, engineers. iii. Designated commissioning representative. iv. General contractor, subcontractors and construction manager. 5. Commissioning process activities, schedules and responsibilities i. Establish prescribed commissioning process steps and activities to be accomplished by the Cx team throughout the design to occupancy. ii. For each phase of the work, define the roles and responsibilities for each member of the Cx team. iii. List the required Cx deliverables, reports, forms and verifications expected at each stage of the commissioning effort.

  iv. Include the confirmation process for the O&M manual, systems manual and the facility operator and maintenance staff training.

  4.3 Enforcement:

  At their discretion, the inspector confirms demonstrated compliance at Plan Intake by: a) Receipt of a copy of the commissioning plan, or b) Receipt of a form signed by the owner or owner’s representative attesting that the Cx Plan has been completed.

  Reference: 5 Functional performance testing

  CALGreen Section 5.410.2.4, Functional performance testing.

  5.1 Intent:

  Develop and implement the functional performance tests to document, as set forth in the commissioning plan, that all components, equipment, systems and system-to-system interfaces were installed as specified, and operate according to the Owner’s Project Requirements, Basis of Design, and plans and specifications.

  The following systems to be functionally tested are listed in the Basis of Design (Section 5.410.2.2 of the code):

  1. Renewable energy systems

  2. Landscape irrigation systems

  3. Water reuse systems

  5.2 Compliance Method:

  Compliance is demonstrated by developing and implementing test procedures for each piece of commissioned equipment and interfaces between equipment and systems according to the building-specific commissioning plan. Tests should include verification of proper operation of all equipment features, each part of the sequence of operation, overrides, lockouts, safeties, alarms, occupied and unoccupied modes, loss of normal power, exercising a shutdown, startup, low load through full load (as much as is possible) and back, staging and standby functions, scheduling, energy efficiency strategies and loop tuning.

• CPC § 1324.5.5.7 High relevance — show source text

  1324.5.5.7 Leaks. Leaks, if any, shall be located, repaired (if permitted) or replaced (if required), and retested. [NFPA 99:5.1.12.2.7.7]

  1324.5.6 System Inspection. System inspections shall be performed prior to concealing piping distribution systems in walls, ceilings, chases, trenches, underground, or otherwise hidden from view. [NFPA 99:5.1.12.3.1.1]

  1324.5.6.1 Test Gas. The test gas shall be nitrogen NF. [NFPA 99:5.1.12.3.1.2]

  1324.5.6.2 Inspection Qualification. Inspections shall be conducted by a party technically competent and experienced in the field of medical gas and vacuum pipeline inspections and testing and meeting the requirements of ASSE/IAPMO/ANSI 6020, or ASSE/IAPMO/ANSI 6030. [NFPA 99:5.1.12.3.1.3]

  1324.5.6.3 Inspection Personnel. Inspections shall be performed by a party other than the installing contractor. [NFPA 99:5.1.12.3.1.4] 1324.5.6.4 Qualifications. Where systems have not been installed by inhouse personnel, inspections shall be permitted by personnel of the organization who meet the requirements of Section 1324.5.6.2.

  [NFPA 99:5.1.12.3.1.5]

  1324.5.6.5 Inspections. The initial pressure tests performed by the installing contractor shall be witnessed by an ASSE/IAPMO/ANSI 6020 inspector, an ASSE/IAPMO/ANSI 6030 verifier, or the Authority Having Jurisdiction or its designee. A form indicating that this test has been performed and witnessed shall be provided to the verifier at the start of the tests required in Section 1324.5.7 through Section 1324.5.11. The presence and correctness of labeling and valve tagging required by this code for all concealed components and piping distribution systems shall be inspected. [NFPA 99:5.1.12.3.2 – 5.1.12.3.2.2]

  1324.5.7 System Verification. Verification tests shall be performed only after all tests required in Section

  1324.3 through Section 1324.5.5.7, Installer Performed Tests, have been completed. [NFPA 99:5.1.12.4.1.1] 1324.5.7.1 Test Gas. The test gas shall be oil-free, dry nitrogen NF or the system gas where permitted.

  [NFPA 5.1.12.4.1.2]

  1324.5.7.2 Approved Tester. Testing shall be conducted by a party technically competent and experienced in the field of medical gas and vacuum pipeline testing and meeting the requirements of ASSE/IAPMO/ANSI 6030, except as required by Section 1324.5.7.3. [NFPA 99:5.1.12.4.1.3]

  Testing shall be performed by a party other than the installing contractor. [NFPA 99:5.1.12.4.1.5]

• CPC § 5.1.10.11.11.6 High relevance — show source text

  (2) The new employer obtains a copy of the record of brazer performance qualification tests from the previous employer and signs and dates these records, thereby accepting responsibility for the qualifications performed by the previous employer. [NFPA 99:5.1.10.11.11.6]

  1323.11.6 Qualifications. Performance qualifications of brazers shall remain in effect indefinitely, unless the brazer does not braze with the qualified procedure for a period exceeding 6 months or there is a specific reason to question the ability of the brazer. [NFPA 99:5.1.10.11.11.7]

  1323.12 Breaching or Penetrating Medical Gas Pip- ing. Positive pressure patient medical gas piping and medical support gas piping shall not be breached or penetrated by any means or process that will result in residual copper particles or other debris remaining in the piping or affect the oxygen-clean interior of the piping. The breaching or penetrating process shall ensure that any debris created by the process remains contained within the work area. [NFPA 99:5.1.10.11.12.1, 5.1.10.11.12.2]

  1323.13 Labeling, Identification and Operating Pres- sure. Color and pressure requirements shall be in accordance with Table 1305.1. [NFPA 99:5.1.11]

  1323.13.1 Pipe Labeling. Piping shall be labeled by stenciling or adhesive markers that identify the patient medical gas, the medical support gas, or the vacuum system and include the following:

  (1) Name of the gas or vacuum system or the chemical symbol per Table 1305.1.

  (2) Gas or vacuum system color code per Table 1305.1.

  [NFPA 99:5.1.11.1.1]

  1323.13.2 Pipe Pressure Labeling. Where positive pressure gas piping systems operate at pressures other than the standard gauge pressure in Table 1305.1, the operating pressure in addition to the name of the gas shall be labeled. [NFPA 99:5.1.11.1.2]

  1323.13.3 Location of Pipe Labeling. Pipe labels shall be located as follows:

  (1) At intervals of not more than 20 feet (6096 mm).

  (2) At least once in or above every room.

  (3) On both sides of walls or partitions penetrated by the piping.

  (4) At least once in every story height traversed by risers. [NFPA 99:5.1.11.1.4]

  1323.13.4 Paint. Medical gas piping shall not be painted. [NFPA 99:5.1.11.1.5]

  1323.14 Identification of Shutoff Valves. Shutoff valves shall be identified with the following:

  (1) Name or chemical symbol for the specific medical gas or vacuum system

  (2) Gas or vacuum system color code in accordance with Table 1305.1

  (3) Room or areas served

  (4) Caution to not close or open the valve except in emergency [NFPA 99:5.1.11.2.1]

  1323.14.1 Nonstandard Operating Pressures. Where positive pressure gas piping systems operate at pressures other than the standard gauge pressure of 50 psi (345 kPa) to 55 psi (379 kPa) or a gauge pressure of 160

  «

• CPC § 15.4.2.10 Medium relevance — show source text

  (4) Warning systems for medical gas systems shall provide the following alarms:

  (a) Oxygen main line pressure low.

  (b) Oxygen main line pressure high.

  (c) Oxygen changeover to secondary bank or about to changeover (if automatic).

  (d) Nitrous oxide main line pressure low.

  (e) Nitrous oxide main line pressure high.

  (f) Nitrous oxide changeover to secondary bank or about to changeover (if automatic).

  (5) Audible and noncancelable alarm visual signals shall indicate if the pressure in the main line increases or decreases 20 percent from the normal operating pressure.

  (6) Visual indications shall remain until the situation that caused the alarm is resolved.

  (7) Pressure switches/sensors shall be installed downstream of any emergency shutoff valves and any other shutoff valves in the system and shall cause an alarm for the medical gas if the pressure decreases or increases 20 percent from the normal operating pressure.

  (8) A cancelable audible indication of each alarm condition that produces a sound at the alarm panel shall reinitiate the audible signal if another alarm condition occurs while the audible signal is silenced. [NFPA 99:15.4.2.10]

  1327.4 Initial Pressure Test. Each section of the piping in positive-pressure gas systems and copper vacuum systems shall be pressure tested. Plastic vacuum and plastic scavenging piping shall not be pressure tested. [NFPA 99:15.4.7.4.4.1]

  1327.4.1 Pressure Test. Initial pressure tests shall be conducted as follows:

  (1) After blowdown of the distribution piping

  (2) After installation of station outlet/inlet rough-in assemblies

  (3) Prior to the installation of components of the distribution piping system that would be damaged by the test pressure (e.g., pressure/vacuum alarm devices, pressure/vacuum indicators, and line pressure relief valves) [NFPA 99:15.4.7.4.4.2]

  1327.4.2 Source Shutoff Valve. The source shutoff valve shall remain closed during the pressure tests.

  [NFPA 99:15.4.7.4.4.3]

  1327.4.3 Test Pressure. The test pressure for oxygen and nitrous oxide piping shall be 1.5 times the system operating pressure but not less than a gauge pressure of 150 psi (1035 kPa). [NFPA 99:15.4.7.4.4.4]

  1327.4.4 Examine for Leaks. The test pressure shall be maintained until each joint has been examined for leakage by means of a leak detectant that is safe for use

  with oxygen and does not contain ammonia. [NFPA 99:15.4.7.4.4.5]

  1327.4.5 Leaks Located. Any leaks shall be located, repaired (if permitted), or replaced (if required) by the installer, and retested. [NFPA 99:15.4.7.4.4.6]

  1327.5 Maximum Copper Tube Support Spacing. The maximum support spacing for copper tube shall be in accordance with Table 1327.5. [NFPA 99:15.4.5.6.5]

  TABLE 1327.5

  MAXIMUM COPPER TUBE SUPPORT SPACING

  [NFPA 99: TABLE 15.4.5.6.5]

• CPC § 904.3.3 Medium relevance — show source text

  Exception: Multiple systems shall be permitted to be installed if they are designed to operate simultaneously.

  [F] 904.3.3 System interlocking. Automatic equipment interlocks with fuel shutoffs, ventilation controls, door closers, window shutters, conveyor openings, smoke and heat vents and other features necessary for proper operation of the fire-extinguishing system shall be provided as required by the design and installation standard utilized for the hazard.

  [F] 904.3.4 Alarms and warning signs. Where alarms are required to indicate the operation of automatic fire-extinguishing systems, distinctive audible and visible alarms and warning signs shall be provided to warn of pending agent discharge. Where exposure to automatic-extinguishing agents poses a hazard to persons and a delay is required to ensure the evacuation of occupants before agent discharge, a separate warning signal shall be provided to alert occupants once agent discharge has begun. Audible signals shall be in accordance with Section 907.5.2.

  [F] 904.3.5 Monitoring. Where a building fire alarm system is installed, automatic fire-extinguishing systems shall be monitored by the building fire alarm system in accordance with NFPA 72.

  [F] 904.4 Inspection and testing. Automatic fire-extinguishing systems shall be inspected and tested in accordance with the provisions of this section prior to acceptance.

  [F] 904.4.1 Inspection. Prior to conducting final acceptance tests, all of the following items shall be inspected:

  1. Hazard specification for consistency with design hazard.

  2. Type, location and spacing of automatic- and manual-initiating devices.

  3. Size, placement and position of nozzles or discharge orifices.

  4. Location and identification of audible and visible alarm devices.

  5. Identification of devices with proper designations.

  6. Operating instructions.

  [F] 904.4.2 Alarm testing. Notification appliances, connections to fire alarm systems and connections to approved supervising stations shall be tested in accordance with this section and Section 907 to verify proper operation.

  [F] 904.4.2.1 Audible and visible signals. The audibility and visibility of notification appliances signaling agent discharge or system operation, where required, shall be verified.

  [F] 904.4.3 Monitor testing. Connections to protected premises and supervising station fire alarm systems shall be tested to verify proper identification and retransmission of alarms from automatic fire-extinguishing systems.

  [F] 904.5 Wet-chemical systems. Wet-chemical extinguishing systems shall be installed, maintained, periodically inspected and tested in accordance with California Code of Regulations, Title 19, Division 1, Chapter 5 and NFPA 17A and their listing. Records of inspections and testing shall be maintained.

  [F] 904.6 Dry-chemical systems. Dry-chemical extinguishing systems shall be installed, maintained, periodically inspected and tested in accordance with California Code of Regulations, Title 19, Division 1, Chapter 5 and NFPA 17 and their listing. Records of inspections and testing shall be maintained.

  [F] 904.7 Foam systems. Foam-extinguishing systems shall be installed, maintained, periodically inspected and tested in accordance with California Code of Regulations, Title 19, Division 1, Chapter 5 and NFPA 11 and their listing. Records of inspections and testing shall be maintained.

• CPC § 90.1 Medium relevance — show source text

  (2) Preheat of the peak service hot-water draw to 85°F (29°C).

  Exceptions:

  (1) Facilities that employ condenser heat recovery for space heating with a heat recovery design exceeding 30 percent of the peak water-cooled condenser load at design conditions.

  (2) Facilities that provide 60 percent of their service water heating from onsite renewable energy or siterecovered energy or from other sources. [ASHRAE 90.1:6.5.6.2.2] L 503.5 Submittals. The Authority Having Jurisdiction shall require submittal of compliance documentation and supplemental information in accordance with Section 104.3.1 of this code.

  L 504.0 Solar Water Heating Systems.

  L 504.1 General. The erection, installation, alteration, addition to, use or maintenance of solar water heating systems shall be in accordance with this section and the Uniform Solar Energy and Hydronics Code.

  L 504.2 Annual Inspection and Maintenance. Solar energy systems that utilize a heat transfer fluid shall annually be inspected unless inspections are required on a more frequent basis by the solar energy system manufacturer.

  L 505.0 Hard Water.

  L 505.1 Softening and Treatment. Where water has a hardness equal to or exceeding 10 gr/gal (171 mg/L) measured as total calcium carbonate equivalents, the water supply line to water heating equipment and the circuit of boilers shall be softened or treated to prevent accumulation of limescale and consequent reduction in energy efficiency.

  L 506.0 Drain Water Heat Exchangers. L 506.1 General. Drain water heat exchangers shall comply with IAPMO PS 92. The heat exchanger shall be accessible.

  L 507.0 Heat Recovery from Steam Boiler Blowdown. L 507.1 General. Where heat recovery can be used beneficially to heat boiler makeup water or for other purposes, boiler blowdown from steam boilers exceeding 15 psi (103 kPa) and 3.4 E+06 Btu/h (996 kW) shall be directed to a heat recovery system that reduces the temperature of the blowdown discharge to below 140°F (60°C) without using tempering water.

  L 601.0 Installer Qualifications.

  L 601.1 Scope. The provisions of this section address minimum qualifications of installers of plumbing and mechanical systems covered within the scope of this appendix.

  L 602.0 Qualifications.

  L 602.1 General. Where permits are required, the Authority Having Jurisdiction shall have the authority to require contractors, installers, or service technicians to demonstrate competency. Where determined by the Authority Having Jurisdiction, the contractor, installer, or service technician shall be licensed to perform such work.

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  APPENDIX L

  TABLE L 503.3.2

  PERFORMANCE REQUIREMENTS FOR WATER-HEATING EQUIPMENT MINIMUM EFFICIENCY REQUIREMENTS

  [ASHRAE 90.1: TABLE 7.8]

• CPC § 31-2022 Medium relevance — show source text

  2025 CALIFORNIA PLUMBING CODE 453

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  "The information contained in this appendix is not part of this American National Standard (ANS) and has not been processed in accordance with ANSI's requirements for an ANS. As such, this appendix may contain material that has not been subjected to public review or a consensus process. In addition, it does not contain requirements necessary for conformance to the standard."

  The following IAPMO Installation Standard is included here for the convenience of the users of the Uniform Plumbing Code. It is not considered as a part of the Uniform Plumbing Code unless formally adopted as such. This Installation Standard is an independent, stand-alone document published by the International Association of Plumbing and Mechanical Officials and is printed herein by the expressed written permission of IAPMO.

  INSTALLATION STANDARD FOR PEX TUBING SYSTEMS

  FOR HOT- AND COLD-WATER DISTRIBUTION

  IAPMO IS 31-2022

  The provisions contained in this appendix are not mandatory unless specifically adopted by a state agency, or referenced in the adopting ordinance.

  1 Scope

  1.1 General

  1.1.1 This Standard specifies requirements for the installation of SDR 9 CTS crosslinked polyethylene (PEX) tubing and fittings, including cold-expansion, crimp, press, and mechanical compression fittings, intended for hot- and cold-water distribution systems within buildings.

  1.1.2 This Standards applies to

  (a) SDR 9 CTS PEX tubing complying with ASTM F876 and pressure-rated in accordance with PPI TR-3; and (b) PEX fitting systems complying with (i) ASTM F877, for mechanical compression fittings and metal or plastic insert fittings with stainless steel press sleeves; (ii) ASTM F1807 or ASTM F2159, for metal or plastic insert fittings with copper crimp rings; (iii) ASTM F1960, for cold expansion fittings with PEX reinforced rings; or (iv) ASTM F2080, for cold expansion fittings with metal compression sleeves. 1.2 Terminology

  In this Standard,

  (a) “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy to comply with the Standard; (b) “should” is used to express a recommendation, but not a requirement; (c) “may” is used to express an option or something permissible within the scope of the Standard; and (d) “can” is used to express a possibility or a capability. Notes accompanying sections of the Standard do not specify requirements or alternative requirements; their purpose is to separate explanatory or informa

  tive material from the text. Notes to tables and figures are considered part of the table or figure and can be written as requirements.

  1.3 Units of Measurement

  SI units are the primary units of record in global commerce. In this Standard, the inch/pound units are shown in parentheses. The values stated in each measurement system are equivalent in application, but each unit system is to be used independently. All references to gallons are to U.S. gallons.

  2 Reference Publications

• CPC § 904.8 Medium relevance — show source text

  [F] 904.8 Carbon dioxide systems. Carbon dioxide extinguishing systems shall be installed, maintained, periodically inspected and tested in accordance with California Code of Regulations, Title 19, Division 1, Chapter 5, NFPA 12 and their listing. Records of inspections and testing shall be maintained.

  [F] 904.9 Halon systems. Halogenated extinguishing systems shall be installed, maintained, periodically inspected and tested in accordance with California Code of Regulations, Title 19, Division 1, Chapter 5, NFPA 12A and their listing. Records of inspections and testing shall be maintained.

  [F] 904.10 Clean-agent systems. Clean-agent fire-extinguishing systems shall be installed, maintained, periodically inspected and tested in accordance with California Code of Regulations, Title 19, Division 1, Chapter 5 and NFPA 2001 and their listing. Records of inspections and testing shall be maintained.

  [F] 904.11 Automatic water mist systems. Automatic water mist systems shall be permitted in applications that are consistent with the applicable listing or approvals and shall comply with Sections 904.11.1 through 904.11.3.

  [F] 904.11.1 Design and installation requirements. Automatic water mist systems shall be designed and installed in accordance with Sections 904.11.1.1 through 904.11.1.4.

  [F] 904.11.1.1 General. Automatic water mist systems shall be designed and installed in accordance with NFPA 750 and the manufacturer’s instructions.

  [F] 904.11.1.2 Actuation. Automatic water mist systems shall be automatically actuated.

  [F] 904.11.1.3 Water supply protection. Connections to a potable water supply shall be protected against backflow in accordance with the California Plumbing Code .

  9-18 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  FIRE PROTECTION AND LIFE SAFETY SYSTEMS

  [F] 904.11.1.4 Secondary water supply. Where a secondary water supply is required for an automatic sprinkler system, an automatic water mist system shall be provided with an approved secondary water supply.

  [F] 904.11.2 Water mist system supervision and alarms. Supervision and alarms shall be provided as required for automatic sprinkler systems in accordance with Section 903.4.1.

  [F] 904.11.2.1 Monitoring. Monitoring shall be provided as required for automatic sprinkler systems in accordance with Section 903.4.2.

  [F] 904.11.2.2 Alarms. Alarms shall be provided as required for automatic sprinkler systems in accordance with Section 903.4.3.

  [F] 904.11.2.3 Floor control valves. Floor control valves shall be provided as required for automatic sprinkler systems in accordance with Section 903.3.9.

  [F] 904.11.3 Testing and maintenance. Automatic water mist systems shall be tested and maintained in accordance with the California Code of Regulations, Title 19, Division 1, Chapter 5 and California Fire Code .

  [F] 904.12 Hybrid fire extinguishing systems. Hybrid fire extinguishing systems shall be designed, installed, maintained, periodically inspected and tested in accordance with NFPA 770. Records of inspection and testing shall be maintained.

• CPC § 1323.11.1 Medium relevance — show source text

  1323.11.1 Examination. Brazers shall be qualified by visual examination of the test coupon followed by sectioning. [NFPA 99:5.1.10.11.11.2]

  1323.11.2 Brazing Procedure Specification. The brazing procedure specification shall address cleaning, joint clearance, overlap, internal purge gas, purge gas flow rate, and filler metal. [NFPA 99:5.1.10.11.11.3]

  1323.11.3 Documentation. The brazing procedure qualification record and the record of brazer performance qualification shall document filler metal used, base metals, cleaning, joint clearance, overlap, internal purge gas and flow rate during brazing of coupon, and absence of internal oxidation in the completed coupon. [NFPA 99:5.1.10.11.11.4]

  1323.11.4 Procedures. Brazing procedures qualified by a technically competent group or agency shall be permitted under the following conditions:

  (1) The brazing procedure specification and the procedure qualification records meet the requirements of this code.

  (2) The employer obtains a copy of both the brazing procedure specification and the supporting qualification records from the group or agency and signs and dates these records, thereby accepting responsibility for the qualifications that were performed by the group or agency.

  (3) The employer qualifies at least one brazer following each brazing procedure specification used.

  [NFPA 99:5.1.10.11.11.5]

  1323.11.5 Conditions of Acceptance. An employer shall be permitted to accept brazer qualification records of a previous employer under the following conditions:

  (1) The brazer has been qualified following the same or an equivalent procedure that the new employer uses.

  (2) The new employer obtains a copy of the record of brazer performance qualification tests from the previous employer and signs and dates these records, thereby accepting responsibility for the qualifications performed by the previous employer. [NFPA 99:5.1.10.11.11.6]

  1323.11.6 Qualifications. Performance qualifications of brazers shall remain in effect indefinitely, unless the brazer does not braze with the qualified procedure for a period exceeding 6 months or there is a specific reason to question the ability of the brazer. [NFPA 99:5.1.10.11.11.7]

  1323.12 Breaching or Penetrating Medical Gas Pip- ing. Positive pressure patient medical gas piping and medical support gas piping shall not be breached or penetrated by any means or process that will result in residual copper particles or other debris remaining in the piping or affect the oxygen-clean interior of the piping. The breaching or penetrating process shall ensure that any debris created by the process remains contained within the work area. [NFPA 99:5.1.10.11.12.1, 5.1.10.11.12.2]

  1323.13 Labeling, Identification and Operating Pres- sure. Color and pressure requirements shall be in accordance with Table 1305.1. [NFPA 99:5.1.11]

  1323.13.1 Pipe Labeling. Piping shall be labeled by stenciling or adhesive markers that identify the patient medical gas, the medical support gas, or the vacuum system and include the following:

  (1) Name of the gas or vacuum system or the chemical symbol per Table 1305.1.