CONTRACT DOCUMENTS AND

PROJECT SPECIFICATIONS

FOR

County of San Mateo

COB1 Renovation and Modernization Project, Work Package 2

455 County Center

Redwood City, CA 94063

County Project No. P33Z1

Volume 2

Architect DES Architects + Engineers, Inc.

399 Bradford Street, 3rd Floor Redwood City, CA 94063

Issue for Bid: October 5, 2026

Project Manual

San Francisco / One Sansome Street / 415-510-2021

Redwood City / 399 Bradford Street / 650-364-6453

Austin / 720 Brazos Street / 512-377-6070

County of San Mateo

COB1 Renovation and Modernization

Work Package 2

455 County Center

County Project No. P33Z1

Volume 2

Issue for Bid: 10/05/26

ABBREVIATIONS

DES DES Architects + Engineers, Inc.

IEI Interface Engineering, Inc.

JHI Jensen Hughes, Inc

SMC San Mateo County

VEC Vista Environmental Consulting

VOLUME 1

DES Section 00 00 10 Table of Contents • •

DES Section 01 10 00 Summary • • DES Section 01 22 00 Unit Prices • DES Section 01 23 00 Alternates • DES Section 01 25 00 Substitution Procedures • DES Section 01 25 00a Substitution Request • DES Section 01 31 00 Project Management and Coordination • • DES Section 01 32 00 Construction Progress Documentation • DES Section 01 32 33 Photographic Documentation • DES Section 01 33 00 Submittal Procedures • DES Section 01 40 00 Quality Requirements • DES Section 01 42 00 References • DES Section 01 50 00 Temporary Facilities and Controls • DES Section 01 60 00 Product Requirements • DES Section 01 73 00 Execution • DES Section 01 74 19 Construction Waste Management and Disposal • • DES Section 01 77 00 Closeout Procedures • DES Section 01 78 23 Operation and Maintenance Data • DES Section 01 78 39 Project Record Documents • DES Section 01 79 00 Demonstration and Training • DES Section 01 81 15 CALGreen Requirements • •

FACILITY CONSTRUCTION SUBGROUP

DES Section 02 41 19 Selective Demolition • • VEC Section 02 81 00 Hazardous Materials Remediation • •

DES Section 03 54 16 Hydraulic Cement Underlayment • •

Not Used

DES Section 05 43 00 Slotted Channel Framing • • DES Section 05 50 00 Metal Fabrications •

DES Section 06 10 00 Rough Carpentry • • DES Section 06 40 23 Interior Architectural Woodwork • •

SECTION 00 00 10

TABLE OF CONTENTS

Division 04 Masonry

Division 05 Metals

Division 06 Wood, Plastics, and Composites

D e s ig n D e v e lo p m e n t:

/0

/2

Is s u e f o r

B id

/0

/2

Division 02 Site Work

Division 03 Concrete

Division 01 General Requirements

GENERAL REQUIREMENTS SUBGROUP

Division 00 Procurement and Contracting Requirements

COB1 Renovation and Modernization

Work Package 2

County Project No. P33Z1

Issued: 10/05/26 TABLE OF CONTENTS

00 00 10 - 1

DES Section 07 21 00 Building Insulation • • DES Section 07 21 29 Spray-Applied Insulation • • DES Section 07 51 13 Built-Up Asphalt Roofing • • DES Section 07 62 00 Sheet Metal Flashing and Trim • • DES Section 07 81 00 Applied Fireproofing • • DES Section 07 84 13 Penetration Firestopping • • DES Section 07 84 43 Joint Firestopping • • DES Section 07 92 00 Joint Sealants • • DES Section 07 92 19 Acoustical Joint Sealants • •

DES Section 08 11 13 Hollow Metal Doors and Frames • • DES Section 08 11 16 Interior Aluminum Frames • • DES Section 08 14 16 Flush Wood Doors • • DES Section 08 31 13 Access Doors and Frames • • DES Section 08 44 13 Glazed Aluminum Curtain Walls • DES Section 08 56 53 Security Windows • DES Section 08 71 00 Door Hardware • • DES Section 08 80 00 Glazing • • DES Section 08 88 13 Fire-Rated Glazing Assemblies •

DES Section 09 22 16 Non-Structural Metal Framing • • DES Section 09 29 00 Gypsum Board • • DES Section 09 30 00 Tiling • • DES Section 09 51 13 Acoustical Panel Ceilings • • DES Section 09 51 36 Suspended Acoustical Baffles • • DES Section 09 54 26 Suspended Wood Ceilings • • DES Section 09 61 20 Concrete Floor Sealer • • DES Section 09 65 13 Resilient Base and Accessories • • DES Section 09 65 19 Resilient Tile Flooring • • DES Section 09 68 13 Tile Carpeting • • DES Section 09 74 13 Wood Wall Panels • • DES Section 09 84 53 Sound Barrier Mullion Trim Cap • DES Section 09 91 00 Painting and Coating • •

DES Section 10 11 00 Visual Display Units • DES Section 10 14 00 Signage • • DES Section 10 21 13 Toilet Compartments • • DES Section 10 26 41 Bullet-Resistant Panels • DES Section 10 28 13 Toilet Accessories • • DES Section 10 44 00 Fire Protection Specialties • •

DES Section 11 30 13 Pantry Appliances •

DES Section 12 21 13 Horizontal Louver Blinds • • DES Section 12 36 61 Solid Surfacing Countertops • • DES Section 12 36 61.19 Quartz Agglomerate Countertops • DES Section 12 64 13 Bench Seating •

Not Used

Not Used

Division 07 Thermal and Moisture Protection

Division 08 Openings

Division 09 Finishes

Division 10 Specialties

Division 11 Equipment

Division 12 Furnishings

Division 13 Special Construction

Division 14 Vertical Transportation

COB1 Renovation and Modernization

Work Package 2

County Project No. P33Z1

00 00 10 - 2

VOLUME 2

JHI Section 21 13 13 Automatic Fire Sprinkler System • •

IEI Section 22 00 00 Plumbing Basic Requirements • • IEI Section 22 05 19 Plumbing Devices • • IEI Section 22 05 23 General-Duty Valves for Plumbing Piping • • IEI Section 22 05 29 Hangers and Supports for Plumbing Piping and Equipment • • IEI Section 22 05 53 Identification for Plumbing Piping and Equipment • • IEI Section 22 07 00 Plumbing Insulation • • IEI Section 22 10 00 Plumbing Piping • • IEI Section 22 30 00 Plumbing Equipment • • IEI Section 22 40 00 Plumbing Fixtures • •

IEI Section 23 00 00 Heating, Ventilating and Air Conditioning (HVAC) Basic Requirements • • IEI Section 23 05 19 Meters and Guages for HVAC Piping • • IEI Section 23 05 23 General-Duty Valves for HVAC Piping • • IEI Section 23 05 29 Hangers and Supports for HVAC Piping, Ductwork and Equipment • • IEI Section 23 05 48 Vibration and Seismic Controls for HVAC Equipment • • IEI Section 23 05 53 Identification for HVAC Piping, Ductwork and Equipment • • IEI Section 23 05 93 Testing, Adjusting, and Balancing for HVAC • • IEI Section 23 07 00 HVAC Insulation • • IEI Section 23 09 00 Instrumentation and Control Performance Specifications • • IEI Section 23 09 13 Variable Frequency Drives • • IEI Section 23 21 13 HVAC Piping • • IEI Section 23 21 16 Hydronic Piping Specialties • • IEI Section 23 31 00 HVAC Ducts and Casings • • IEI Section 23 33 00 Air Duct Accessories • • IEI Section 23 36 00 Air Terminal Units • • IEI Section 23 37 00 Air Outlets and Inlets • • IEI Section 23 40 00 HVAC Air Cleaning Devices • • IEI Section 23 73 23 Custom-Built Air Handling Equipment • •

IEI Section 26 00 00 Electrical Basic Requirements • • IEI Section 26 00 05 Electrical Pre-Closeout Checklist • • IEI Section 26 05 09 Equipment Wiring • • IEI Section 26 05 19 Low-Voltage Electrical Power Conductors and Cables • • IEI Section 26 05 26 Grounding and Bonding for Electrical Systems • • IEI Section 26 05 29 Hangers and Supports for Electrical Systems and Equipment • • IEI Section 26 05 33 Raceways • • IEI Section 26 05 34 Boxes • • IEI Section 26 05 53 Identification for Electrical Systems • • IEI Section 26 05 73 Electrical Distribution System Studies • • IEI Section 26 08 05 Electrical Acceptance Testing • • IEI Section 26 08 10 Building Lighting Acceptance Testing and Documentation • • IEI Section 26 09 25 Digital Lighting Controls • • IEI Section 26 22 00 Low-Voltage Transformers • IEI Section 26 24 16 Panelboards • IEI Section 26 27 26 Wiring Devices • • IEI Section 26 28 00 Overcurrent Protective Devices • • IEI Section 26 28 16 Enclosed Switches and Circuit Breakers • • IEI Section 26 51 00 Lighting • •

Division 22 Plumbing

Division 23 HVAC

Division 26 Electrical

Division 21 Fire Suppression

COB1 Renovation and Modernization

Work Package 2

County Project No. P33Z1

00 00 10 - 3

IEI Section 27 00 00 Communications Basic Requirements • • IEI Section 27 05 28.13 Detailed Pathways for Communications Systems • • IEI Section 27 05 28.28 Firestopping for Communications Systems • • IEI Section 27 11 10 Detailed Communication Equipment Rooms • • IEI Section 27 13 00 Communications Backbone Cabling • IEI Section 27 15 10 Detailed Communications Horizontal Cabling • •

SMC Section 27 41 16 Integrated Audiovisual Systems and Equipment • IEI Section 27 51 29 Emergency Responder Communications Enhancement System (ERCES) •

SMC Section 28 130 00 Access Control System • JHI Section 28 31 00 Addressable Fire Alarm Systems • •

END OF TABLE OF CONTENTS

Division 27 Communications

Division 28 Electronic Safety and Security

COB1 Renovation and Modernization

Work Package 2

County Project No. P33Z1

00 00 10 - 4

COB1 Renovations and Modernization

County Project P33Z1 AUTOMATIC SPRINKLER SYSTEM 10/05/2026 21 13 13 – 1

SECTION 21 13 13

AUTOMATIC SPRINKLER SYSTEM

PART 1 - GENERAL

1.1 SUMMARY OF WORK

1.2 The Contractor shall provide all equipment, materials, tools, labor, and accessories necessary for complete fire protection systems, with said systems being made ready for operation in accordance with the requirements of the specifications and the authority having jurisdiction (AHJ). The purpose of the specifications and drawings is to convey to the Contractor the scope of work required, all of which the Contractor is responsible to coordinate, furnish, install, adjust, and make operable.

1.3 The omission of any necessary system component as required by the AHJ shall not relieve the Contractor of the responsibility to provide such necessity, without additional cost to the Owner.

The Contractor shall visit the site before submitting the bid and shall examine all existing physical conditions that may be material to the performance of the work. No extra payments will be allowed to the Contractor as a result of extra work made necessary by their failure to do so.

Any case of error, omission, discrepancy or lack of clarity shall be promptly identified to the Owner for clarification prior to the bid due date.

1.4 The Contractor shall provide all devices and equipment required by these specifications and drawings. Under no circumstances will the Contractor delete any equipment or devices without the written directive of the Engineer.

1.5 It is the responsibility of the installing Contractor to provide, at no additional cost to the Owner, all required piping, fittings, offsets, and elevation changes to accommodate routing around obstructions and for addressing unforeseen conditions encountered in the field. It is also the Contractor’s responsibility to provide main and auxiliary drains and air release valves to comply with NFPA 13 whether or not shown on the drawings.

1.6 SCOPE OF WORK

A. Provide shop drawings, project record drawings (as-built), equipment, fabrication, labor, transportation and supervision necessary to install, test and place into service a complete automatic sprinkler system throughout the first and second floors, as indicated on the design documents. Verify tie-in to existing fire water main at the basement level during bid, prior to start of installation. Verify tie-in to the existing fire water supply at the basement level, and provide risers on the 1st and 2nd floor with floor control valve assemblies (installation of 3rd, 4th and 5th floor fire sprinkler systems shall be separate scope within Work Package 3). Provide fittings, caps, etc… such that basement fire sprinkler riser may be added at a later phase. Provide fittings, caps, etc… such that basement fire sprinkler riser may be added during Work Package

3. The installing Contractor shall field verify the location, diameter and viability of the existing fire water main at the basement level and confirm if modifications to the existing fire water supply into the basement are necessary, and if so scope shall be included in bid and provided to Owner prior to design or installation. The system shall be in compliance with the referenced codes and standards.

B. Work provided under this section shall include, but not be limited to, the complete automatic sprinkler system as outlined in this section, including all labor, materials, design and fabrication drawing preparation needed to provide an operating system, and all of the following:

10/05/2026 21 13 13 – 2

1. Automatic sprinklers, standpipes, connections, and appropriate escutcheons in all spaces in accordance with NFPA 13 and NFPA 24.

2. Pipe, fittings, and auxiliary drains.

3. Hangers, supports and seismic bracing, including seismic bracing calculations.

4. Ceiling and wall plates.

5. Signs.

6. Coordination with all other trades including the subcontractor providing the detection and alarm system for interfacing with alarm and supervisory functions required by applicable codes and standards.

7. Preparation of shop drawings, including hydraulic calculations, seismic brace calculations, device manufacturer’s literature, and samples. Preparation of as-built and project record drawings.

8. Hydrostatic tests, Contractor’s Material and Test Certificates and as-built drawings.

9. Training and operating instructions.

10. Spare parts/sprinklers in cabinet with special wrenches.

11. Painting of all exposed sprinkler piping and supports.

12. Payment of permits and fees for this work.

1.7 EXCLUSIONS

A. The work listed below shall be provided by others, or under other sections of this specification:

1. Clean Agent Systems.

2. Fire Alarm Systems.

1.8 SYSTEM ABBREVIATIONS AND DEFINITIONS

A. AHJ – Authority having jurisdiction.

B. Approved – Unless otherwise stated, materials, equipment or submittals approved by the AHJ.

C. ANSI – American National Standards Institute.

D. ASME – American Society of Mechanical Engineers.

E. ASTM – American Society for Testing and Materials.

F. AWS – American Welding Society.

G. AWWA – American Water Works Association.

H. Concealed – Where used in connection with installation of piping or conduit and accessories, shall mean, “hidden from sight” as in shafts, furred spaces, in soffits or above ceilings.

I. Contractor – The Company awarded the prime contract for this work and any of its subcontractors, vendors, suppliers, or fabricators.

J. Engineer – Jensen Hughes, Inc.

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K. Exposed – Where used in connection with installation of piping or conduit and accessories, shall mean “visible” or “not concealed.”

L. FM – Factory Mutual.

M. FM Approved – Materials or equipment approved by Factory Mutual and included in the most recent edition of the FM Approval Guide.

N. Furnish – Supply materials.

O. gpm – Gallons per minute.

P. Install – Install materials, mount and connect equipment or assemblies.

Q. NFPA – National Fire Protection Association.

R. Owner – County of San Mateo

S. Provide – Furnish, install, connect, and make operational.

T. psi – Pounds per square inch.

U. QR – Quick-response sprinkler.

V. Recessed – Where used without the prefix “semi-” this term is intended to refer to fully concealed sprinklers with concealed escutcheon plates or

W. Remove – Remove material and equipment and restore surface.

X. UL – Underwriters Laboratories, Inc.

Y. UL Listed – Materials or equipment listed by Underwriters Laboratories and included in the UL Fire Protection Equipment Directory.

1.9 DESIGN CRITERIA

A. General Requirements

1. Automatic fire sprinkler systems shall be designed for the occupancy type indicated on the design drawings, and shall utilize quick-response sprinklers unless otherwise specified. Automatic sprinkler systems shall be installed in all areas. The systems shall be hydraulically designed using the density/area method described in NFPA 13.

2. Offices, restrooms, computer rooms, and all other Group B occupancies shall be classified as Light Hazard occupancy, and shall be designed using a density of 0.10 gpm per square foot over a minimum 1,500-square-foot design area. System design shall include an allowance of 100 gallons per minute for inside/outside hose streams.

3. Mechanical rooms, electrical rooms, and all similar areas of the building shall be classified as Ordinary Hazard Group 1 occupancy, and shall be designed using a density of 0.15 gpm per square foot over a minimum 1,500-square-foot design area. System design shall include an allowance of 250 gallons per minute for inside/outside hose streams.

4. Storage areas shall be classified as Ordinary Hazard Group 2 occupancy, and shall be designed using a density of 0.2 gpm per square foot over a minimum 1,500-square-foot design area. System design shall include an allowance of 250 gallons per minute for inside/outside hose streams.

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5. Sprinklers in finished areas shall be quick-response, concealed-pendent sprinklers with a chrome finish and white escutcheon. Sprinklers in unfinished areas and areas with no ceiling shall be quick-response upright sprinklers with brass finish.

B. Hydraulic Calculations

1. The Contractor shall provide hydraulic calculations for all sprinkler system layouts.

Hydraulic calculations shall include a water supply graph and hydraulic cover sheet. The cover sheet shall include the name and location of the calculated area, ceiling height, occupancy, design criteria, sprinkler spacing, system type, sprinkler make, model, size, k-factor and temperature rating, flow requirements, C factor used, water supply data and source of information.

2. The Contractor shall gather water supply information as necessary to produce hydraulic calculations in accordance with NFPA 13.

C. Separate floor control valve assemblies shall be provided at each floor for the automatic sprinkler system.

1.10 APPLICABLE CODES, STANDARDS, AND PUBLICATIONS

A. The design and installation shall be in conformance with all applicable local, state, and national codes and standards.

B. Reference Codes: The following codes are included as part of this section:

1. California Building Code, 2025 Edition with local amendments (CBC).

2. California Fire Code, 2025 Edition with local amendments (CFC).

C. Reference Standards and Publications: The following standards and publications are included as part of this section:

1. National Fire Protection Association (NFPA):

a. NFPA Standard 13, 2025 Edition, Standard for the Installation of Sprinkler Sys-tems (NFPA 13)

b. NFPA Standard 24, 2025 Edition, Standard for the Installation of Private Fire Service Mains and Their Appurtenances (NFPA 24)

2. Factory Mutual Systems (FM) Publication:

a. Approval Guide.

3. Underwriters Laboratories, Inc. (UL) Publication:

a. Fire Protection Equipment List.

1.11 REGULATORY AGENCIES

A. All material, design, installation and other work shall conform to all applicable regulatory agencies, including the following:

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1. Federal, state, and local building codes and ordinances, and agencies.

B. Contractor shall include all costs associated with complying with the applicable regulatory agencies. Failure to specifically reference on these plans and/or specifications any restrictions, materials, and/or work required by the regulatory agencies shall not relieve the Contractor of the responsibility for fully complying with the regulatory agencies without additional cost to the Owner.

1.12 APPROVALS

A. Obtain acceptance of shop drawings and materials from the Owner and Architect prior to submittal.

B. Obtain approval of fabrication drawings from the Owner, Architect, and AHJ prior to fabrication and installation of materials.

1.13 SUBMITTALS

A. Shop Drawings (developed by Contractor)

1. The Contractor shall develop shop drawings complying with NFPA 13 and NFPA 24 as working drawings.

2. Submit two copies of fabrication drawings for review and acceptance by the Owner, Architect, and AHJ.

3. Contractor shall submit complete system packages. Partial system submittals will be rejected.

4. Prepare shop drawings at minimum scale of 1/8 inch equals 1 foot for plans, and 1/4 inch equals 1 foot for details. Show all piping, sprinklers, hangers, type of pipe, tube connections, outlets, roof construction, and occupancy of each area, including ceiling and roof heights as required by NFPA 13.

5. Shop drawings shall include details of earthquake sway bracing with any required calculations.

B. Changes:

1. Any pipe fabricated and/or installed before all approvals are obtained at the Contractor’s own expense and responsibility. Any changes made to the approved drawings other than as stated above are at the Contractor's own expense and responsibility.

C. Hydraulic Calculations

1. The Contractor shall provide hydraulic calculations for all modified sprinkler and standpipe layouts. Hydraulic calculations shall include a water supply graph and hydraulic cover sheet.

2. Submit two copies of hydraulic calculations for review and acceptance by the AHJ.

3. The Contractor shall submit complete system packages. Partial system submittals will be rejected.

10/05/2026 21 13 13 – 6

D. The Contractor shall provide data from manufacturers for all changes and substitutions on the following devices, including installation, maintenance and testing procedures, dimensions, wiring diagrams, etc. Where any devices that are provided or furnished involve work by another trade, submit additional data copies directly to that subcontractor. Where manufacturer's data sheets show multiple equipment or model numbers, indicate with arrow the equipment to be provided.

1. Sprinklers and escutcheons.

2. Pipe, fittings, and hangers.

3. Braces and attachments.

4. Hose valves.

5. Control valves.

6. Check valves.

7. Supervisory switches.

8. Waterflow switches.

9. All other system components.

E. Project Record Drawings

1. Maintain at the site an up-to-date marked set of approved drawings, which shall be corrected daily and delivered to the Owner upon completion of work.

2. Contractor shall utilize the marked-up drawings to produce a set of project record drawings. Upon completion, furnish Owner with four sets of blackline prints and one set in electronic AutoCAD (DWG) and portable document format (PDF) format of each reviewed shop drawing, revised to show “as-built” conditions.

F. Final Inspection and Test

1. Upon completion of final inspections and tests, as required by appropriate NFPA Standards and these specifications, submit documentation of all test results and copies of the Standard Contractor’s Material and Test Certificates to the Owner.

1.14 SPARE PARTS

A. Provide spare sprinkler cabinets, complete with sprinklers of assorted temperature ratings of the type necessary and in use throughout the installation as required by NFPA 13. Each cabinet shall be equipped with one special sprinkler wrench required for each type of sprinkler installed.

B. Confer with Owner for exact locations of sprinkler cabinets.

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1.15 WARRANTY

A. The Contractor shall warranty all materials and workmanship for a period of 1 year beginning with the date of final acceptance by Owner.

1.16 QUALITY ASSURANCE

A. The Contractor shall be fully experienced and licensed (California C-16) in all aspects of the fire protection systems herein specified.

B. The Contractor shall provide a single person as a point of contact who is responsible for issues of scheduling, coordination, and quality control.

1.17 EMERGENCY SERVICE

A. The Contractor shall provide emergency repair service for the sprinkler/standpipe system within 4 hours of a request for such service by the Owner during the guarantee period. This service shall be available on a 24-hour per day, 7-day per week basis.

1.18 TRAINING AND OPERATION INSTRUCTIONS

A. The Contractor shall conduct two training sessions of 4 hours each to familiarize the facility personnel with the features, operation, and maintenance of the fire protection systems.

Training sessions shall be scheduled with the Owner by the Contractor at a mutually agreeable time to the Contractor and Owner.

B. Operating Instructions

1. At the completion of the work, provide a site plan indicating the locations of all control valves, low point drains, and inspector’s test valves. The plan shall be neatly drawn and color-coded to indicate the portion of the building protected by each system. Submit four sets of plans to the Owner.

2. Furnish three copies of printed operating and maintenance instructions to the Owner and adequately instruct Owner’s maintenance personnel in proper operation and test procedures of all fire protection components provided, furnished, or installed.

1.19 PERMITS AND FEES

A. Contractor to pay for all permits, fees and charges required for this work.

PART 2 - PRODUCT/SYSTEM REQUIREMENTS

2.1 GENERAL

A. All components shall be UL listed or FM approved for the intended purpose. Components shall be used in accordance with the manufacturer's recommendations and its UL listing and/or FM approval.

B. The naming of manufacturers in the specifications shall not be construed as eliminating the materials, products or services of other manufacturers and suppliers providing approved equivalent items.

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C. The substitutions of materials or products other than those named in the specifications are subject to proper approval of the Owner granted in writing.

2.2 PIPE

A. Pipe shall be new, designed for 175 psi, non-shock, cold water working pressure, conforming to ASTM specifications, and have the manufacturer's name and brand along with the applicable ASTM standard marked on each length of pipe.

1. Steel: Steel piping shall be black steel.

a. Standard Wall: Overhead pipe used shall be black steel and must comply with ASTM A 135. Dimensions for all overhead pipe must be in accordance with the American Standard for Wrought Steel and Wrought Iron Pipe ANSI B36.10- 1975 for pressure up to 300 psi.

b. All pipe 2 inches and smaller shall be Schedule 40. All pipe 2.5 inches and larger shall be Schedule 10.

c. Pipe and preparation shall conform to the fitting manufacturer’s recommenda-tions.

d. Any internally coated steel piping shall be listed for compatibility with nonmetal-lic fittings.

e. Any cutting oils and lubricants used for fabrication of steel piping shall be com-patible with nonmetallic fittings.

2. Plastic: Plastic piping shall be CPVC.

a. Dimensions for all pipe must comply with ASTM F 442.

b. All sprinkler cross mains and branch lines in residential areas shall be CPVC.

c. All CPVC pipe shall be installed in accordance with their listing limitations.

B. Where piping is subjected to pressures exceeding 175 psi, pipe and fittings rated for the pressures developed shall be used.

2.3 FITTINGS

A. Piping connections for steel pipe shall be threaded, flanged or grooved, and rated for 175-psi working pressure. All fittings shall be suitable for use in sprinkler systems as defined in NFPA 13.

1. Steel Pipe

a. Threaded fittings shall be cast iron, 125-pound class, black, and in accordance with ANSI B 16.4 or malleable iron, 150-pound class, black and in accordance with ANSI B 16.3. Bushings shall not be used unless written approval is ob-tained from the Owner. Threaded fittings on deluge system located outside shall be malleable.

10/05/2026 21 13 13 – 9

b. Welded fittings shall be steel, standard weights, black, and in accordance with ASME B 16.9, ASME B 16.25, ASME B 16.5, ASME B 16.11, and ASTM A 234.

c. Grooved fittings shall be malleable or ductile iron joined with rigid or flexible couplings with approved gaskets. Groove-type fittings shall be UL listed or FM approved for fire protection. Fittings shall be manufactured by Victaulic, Gustin- Bacon, or equal.

d. Grooved couplings and reducers shall be malleable or ductile iron conforming to ASTM A47. Grooved couplings to be malleable or ductile iron having clamps to engage and lock, designed to permit some angular deflection, contraction, and expansion; composition sealing gaskets recommended by the manufac-turer, steel bolts, nuts, and washers. Coupling gasket shall be molded Elasto-mer (EPDM) Victaulic grade “E” (TYPE A), Gustin-Bacon Type W, or as other-wise recommended by the manufacturer for dry pipe systems, or equal.

Grooved couplings and reducers shall be of the same manufacturer as used for the grooved fittings. Grooved couplings may be of flexible or rigid type.

e. Flanged fittings shall be Class 150 steel, rated at 200 psi working pressure and provided match adjacent equipment or fittings. Where using bolt connections, the length of the bolts shall not protrude as to prevent the use of a socket wrench on associated nuts. Flanged bolts shall be hexagon head machine bolts with heavy semi-finished hexagon head nuts, cadmium plated, having di-mensions in accordance with ANSI B 18.2. Gaskets shall be full-faced of 1/16-inch minimum thickness red sheet rubber.

2. Plastic Pipe

a. All plastic fittings shall be CPVC and in accordance with ASTM F437, ASTM F438, and ASTM F439.

b. CPVC fittings shall be installed in accordance with their listing limitations.

B. Where fittings are subjected to pressures exceeding 175 psi, fittings rated for the pressures developed shall be used.

2.4 FLEXIBLE SPRINKLER CONNECTION

A. Standard flexible sprinkler connections may be used only with Owner and Architect approval, and where suspended ceilings with T-bar and stud framing, and floating ceilings with T-bar, are provided. Where used, the entire listed assembly shall be provided. Connection shall be to a standard screwed fitting on the branch line, press fittings shall not be used. Flexible sprinkler connections shall be Flexhead or approved equal.

2.5 SPRINKLERS

A. Sprinkler shall be standard 1/2-inch orifice, quick-response type and have an ordinary temperature classification except where otherwise required by NFPA 13 or the CBC.

Temperature ratings shall be 155 degrees Fahrenheit in all areas except where higher temperature ratings are required by NFPA 13. Sprinklers shall be manufactured by Tyco, Viking, Reliable, or approved equal.

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B. Pendent sprinklers located in finished ceilings shall be concealed pendent type with chrome finish and white metallic escutcheon. Sprinklers located in areas without finished ceiling shall be brass upright or pendent.

C. Sidewall sprinklers and extended-coverage sprinklers may be used where noted on the drawings. Sidewall and extended-coverage sprinklers shall be quick-response type and listed for the hazard classification being protected. The installation of sidewall and extended-coverage sprinklers shall comply with NFPA 13 and manufacturer’s instructions.

2.6 VALVES

A. Control valves shall be UL listed/FM approved indicating type. All valves controlling building automatic sprinkler systems shall be butterfly or outside screw and yoke (OS&Y) valves.

Valves shall be Powhattan, Croker, Elkhart, Grinnell, Stockham, Viking, Potter-Roemer, Victaulic, or approved equal.

1. OS&Y valves shall be iron body, bronze trim, rising stem with solid wedge and resilient seat.

2. Butterfly valves shall be gear operated, indicating type with integral valve supervisory switch, manufactured by Victaulic or equal.

3. Pressure reducing floor control valves shall be indicating type.

B. Drain, trim, and test valves shall be approved.

1. Main drain, auxiliary drain and inspectors test valves shall be globe valves, bronze body, rising stem, inside screw, renewable composition disc manufactured by Nibco, Stockham or equal. Globe valves up to 1 inch to be Nibco KT-65, Stockham or equal. Globe valves 1-1/4 inches to 30 inches to be Nibco KT-211-W, Stockham or equal.

2. Drains shall discharge to sanitary sewer.

3. Combination test/drain valves may be used.

C. Check Valves

1. Check valves for water supply, fire department connections, and risers shall have removable covers for maintenance without removing the valve from the system.

2. Check valves in the trim shall be approved.

2.7 PRESSURE GAUGES

A. Listed/approved with range approximately twice maximum pressure at point of connection, 3- 1/2-inch diameter, complete with 1/4-inch threaded inlet with shut off valve with 1/4-inch plugged outlet.

2.8 HANGERS AND SUPPORTS

A. Swivel rings and building attachments shall be listed/approved.

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1. Trapeze/hanger component station module shall meet or exceed values listed in NFPA 13.

2. Earthquake sway bracing compartments shall meet or exceed sizes listed in NFPA 13.

2.9 SLEEVES FOR WALL/FLOOR PENETRATIONS

A. Sleeves through walls and floors, where provided, shall be of a type that can be made watertight and fire stopped. Sleeve sizes shall be as required by NFPA 13 for earthquake protection.

2.10 SIGNS

A. Valve signs shall indicate purpose and system of each control, test, trim, and drain valve.

Hydraulic information sign shall meet requirements of NFPA 13. New hydraulic information signs shall be provided for every riser that serves a sprinkler zone being modified.

B. Contractor shall develop and provide zone maps to the Owner. Zone maps shall clearly indicate the borders of each sprinkler zone. Zone maps shall be provided for each floor. The full floor plan of each level shall be depicted on each map. Floor plans shall be drawn to scale and fit to the size of drawing as directed by the Owner. Contractor shall provide maps to the Owner. The Owner will print and mount maps.

2.11 WATERFLOW ALARM AND SUPERVISORY DEVICES

A. Devices shall be listed/approved for the intended application and compatible with the alarm system.

1. Valve supervisory switches shall be provided on all control valves. Switch shall not interfere with the normal operation of the valve. Supervisory switches shall be furnished and installed as part of the sprinkler work and wired as part of the fire alarm work.

2. Supervisory switches provided with butterfly/ball valves by the valve manufacturer shall be listed/approved as an assembly.

B. Waterflow Switches

1. Waterflow alarm indicators shall be vane-type. Switches shall be instantaneously recycling with pneumatic retard. Switches shall be furnished and installed as part of the sprinkler work and wired as part of the fire alarm work.

2. Switches shall be provided with two sets of normally open contacts. Waterflow alarm switch shall be installed before the system has been hydrostatically tested. Waterflow switch shall be UL listed or FM approved. Switches shall be manufactured by Potter or equal.

PART 3 - EXECUTION

3.1 GENERAL

A. Product Delivery

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1. Delivery of Materials: Delivery of all materials and equipment to the job site shall be scheduled to assure compliance with the predetermined construction schedules.

2. Storage of Materials, Equipment, and Fixtures: The Contractor shall be responsible for storage of materials on job site, including furnishing of any storage facilities or structures required.

3. Handling Materials and Equipment: The Contractor shall be responsible for on-site handling of materials and equipment.

B. Clean-up

1. Maintain the premises free from accumulation of waste materials or rubbish caused by this work.

2. At the completion of the work, removed all surplus materials, tools, etc., and leave the premises clean.

C. Leak Protection

1. Damage: Protect all unfinished work to prevent damage and furnish protection of all surrounding areas where necessary.

2. Leak Damage: The Contractor shall be responsible during the installation and testing periods of the fire protection system for any damage to work in progress, to the building or its contents caused by leaks in any equipment, by unplugged or disconnected pipes or fittings, or by overflow, and shall pay for the necessary replacements or repairs to work in progress or building damaged by such leakage.

3. All piping shall be air tested prior to hydrostatic testing.

3.2 FABRICATION

A. Pipe Ends

1. Ream and remove burrs after cutting pipe. Standard wall pipe ends shall be welded, threaded, cut grooved, or plain end.

2. Thin wall pipe ends shall be plain end, welded, or roll grooved in accordance with the fitting manufacturers’ recommendation.

3. Threads shall be in accordance with ASME B1.20.1. Each thread on light wall pipe shall be gauged before fitting make-on.

B. Grooved Ends

1. Pipe minimum thickness, squareness, and out-of-roundness shall be in accordance with the coupling manufacturers specifications.

2. Pipe surface shall be free of indentations, projections, or roll marks from the end of the pipe to the groove.

3. Pipe of less than minimum wall thickness listed shall not be cut grooved.

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C. Welding

1. No field welding of sprinkler/standpipe piping shall be permitted.

2. Piping may be shop welded using acceptable welding fittings. Welding methods shall comply with all the requirements of AWS B2.1, “Specifications for Qualification of Welding Procedures and Welder for Piping and Tubing.”

3. Certified records shall be maintained upon the completion of each weld, welder shall stamp an imprint of their identification into the side of the pipe adjacent to the weld.

4. Welds shall be inspected at the site by the fire department prior to installation. Piping with welded fittings installed without such prior inspection shall be rejected.

3.3 INSTALLATION

A. General

1. A clean set of prints or shop drawings shall be maintained at the site and marked up daily to show any changes.

2. Piping shall be installed above ceilings except as noted otherwise. Install piping in exposed areas as high as possible using necessary fittings and auxiliary drains to maintain maximum clear headroom.

3. Complete installation and place in service during nonworking hours in all areas where materials are stored or in place.

4. Coordinate to provide an operating system before Owner’s scheduled moving of combustible contents into building, except as specifically permitted by the AHJ.

5. Install paired flanges and numbered test blanks to provide partial protection during construction. Maintain a “test blank log” at the site during construction to assure removal of all blanks at completion of job.

6. CPVC pipe shall be used for drop-nipples to pendent sprinklers.

7. Flushing connections shall be installed at ends of cross mains.

B. Joining Pipe

1. Steel Pipe

a. Apply tape or joint compound to male threads only.

b. Threaded close nipples shall not be used.

c. Grooved and plain end joints shall be made in accordance with the fitting man-ufacturer’s recommendations.

C. Drain and Test Piping

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1. Where drain and test piping is piped through wall to atmosphere, install a 4 foot or greater length of pipe from valve outlet to wall penetration.

3.4 SPRINKLERS

A. General

1. Pendent sprinklers shall have symmetry, which is in alignment and parallel to ceiling fixtures, walls, and building features.

2. Pendent sprinklers shall be located at center of tile.

3. Adjustable escutcheons shall not be used.

4. Install sprinklers as required by NFPA 13 with regard to ducts, obstructions, and partitions.

5. Sprigs shall be provided wherever necessary to provide proper deflector distances in accordance with NFPA 13 requirements.

B. Sprinkler Guards

1. Provide guards on sprinklers within 7 feet of finished floor or wherever sprinklers may be subject to mechanical damage.

3.5 VALVES

A. General

1. Valves shall be installed with sufficient clearance for operation, testing, and maintenance.

2. Where wafer bodied valves are used, they shall be installed so that the discs do not interfere with other components.

B. Control valves shall be installed so that valve position indicator is visible.

C. Drain, Test, and Trim Valves

1. Valves shall be installed no more than 7 feet, 0 inches above the finished floor and be accessible.

D. Check Valves

1. Install check valves horizontally or vertically (flow upward).

E. Automatic Drip (ball drip) Valve

1. Install horizontally, pipe discharge to outside or suitable drain.

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3.6 PENETRATIONS

A. Piping passing through any wall, floor or rated assembly shall be provided with clearance around the entire circumference of the pipe as required by NFPA 13. Piping 3-1/2 inches and smaller shall have a minimum 1-inch clearance around the entire circumference of the pipe and piping 4 inches and larger shall have a minimum 2-inch clearance around the entire circumference of the pipe. The exception is clearance for piping penetrating the insulated ceiling panels shall be as small as possible. Careful coordination with the other trades is required. Where fire alarm conduit or conductors penetrate the same wall as sprinkler piping, size core for both with proper clearance.

B. Where cutting or drilling of floors, ceilings, or other surfaces is necessary for the proper installation, support, or anchorage of pipe, conduit, or other work, this work shall be carefully done and affected surfaces and structures shall be fully restored to original condition. Any damage to building, piping, or equipment cause by the Contractor shall be repaired at no additional cost to Owner. All such work shall be performed by skilled workers in their respective trades, at the expense of the Contractor.

C. The annular space between the floor, wall, or ceiling, and the sprinkler pipe is fire-rated assemblies shall be filled with a waterproof, UL listed, fire stopping material with a fire-resistance-rating equivalent to, or greater than, that of the floor or the wall being penetrated.

The finish of the fire stopping material shall be neat, smooth, and flush with member being penetrated in finished areas.

D. Sprinklers penetrating ceilings shall be provided with a 1-inch annular space around sprinklers and piping penetrating the ceiling. Oversized rings or expansion plates shall be used where this occurs. The annular space is not required where flexible sprinkler drops are installed or where the Structural Engineer has determined they are not required based on seismic evaluation of the ceiling.

E. Plastic piping passing through any wall into an area where the pipe would be exposed, must be provided adequate protection or transition to steel piping.

3.7 PRESSURE GAUGES

A. Gauges shall be installed vertically, with three-way valve with 1/4-inch plugged outlet, and as follows:

1. Above and below wet system riser check valves.

2. At each water supply and inlet of floor control valve.

3. At inlet and outlet of each pressure reducing floor control valve.

3.8 HANGERS, SUPPORTS, AND EARTHQUAKE BRACING

A. General

1. All piping must be substantially supported from building structure and only approved types of hangers shall be used. Piping lines under ducts shall not be supported from ductwork, but shall be supported from building structure with trapeze hangers where necessary or from steel angles supporting ductwork in accordance with NFPA 13.

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2. All thread rods shall not be bent. Hanger components shall be ferrous.

3. Where attached to bar joists, attach hanger to top chord of bar joists only.

B. Feed and Cross-Mains

1. Install at least one hanger per length of pipe up to 8 feet in length joined by grooved couplings.

2. Use rigid grooved couplings where more than two couplings are used per run.

C. Risers

1. Riser/standpipe shall be supported at lowest level and alternate levels above using riser clamp.

D. Earthquake Protection

1. Install bracing meeting the requirements of the CBC and NFPA 13.

2. Install flexible joints as required by NFPA 13.

3.9 SLEEVINGS, WALL, AND FLOOR PENETRATIONS

A. Sleeves through fire-rated assemblies shall be fire stopped.

B. Sleeves through floors shall be made watertight.

C. Install metal wall and ceiling plates and exposed pipe in finished brass.

3.10 SIGNS

A. Valves

1. Secure to each valve with corrosion-resistant wire or chain.

B. Hydraulic Design Information

1. Secure directly to the riser with adhesives or to riser with corrosion-resistant fasteners.

3.11 WATERFLOW ALARMS AND SUPERVISORY DEVICES

A. Alarm and Supervisory Switches

1. Deliver wiring diagrams to alarm contractor.

2. Install alarm water flow and air supervisory switches in accordance with switch and valve manufacturer’s instructions.

3. Install and adjust valve supervisory switches in accordance with switch manufacturer’s instructions.

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3.12 SYSTEM ACCEPTANCE

A. Tests

1. General system inspections and tests shall be coordinated with the AHJ. Problems noted during testing such as air or water leaks, difficulty in operating valves, and alarm failures shall be corrected before the Contractor leaves the job.

2. Hydrostatically test all piping at 200 psi for 2 hours. If the highest static pressure at the lowest point in the system exceeds 150 psi, the system shall be tested at 50 psi more than the highest static pressure.

3. Flow Tests

a. Main drain shall be opened wide until pressure stabilizes then slowly closed, noting and recording flowing (residual) and static (non-flow) pressure.

b. Pressure reducing floor control valves and fire hose valves shall be tested not-ing inlet and outlet pressures under non-flowing and flowing conditions. Record results.

4. Special system trip tests shall be in accordance with valve manufacturer instructions.

Test by operating detection system and manual release. Drain system and restore to service.

B. Valve Operation

1. Operate each valve through its entire range. Adjust valve-packing glands if applicable.

C. Waterflow and Supervisory Devices

1. Coordinate testing of electric components with the alarm contractor.

2. Each waterflow device shall be tested in accordance with NFPA 72 by opening the inspector’s test or alarm test valve.

3. Each valve supervisory device shall be tested by operating the valve wheel/crank.

4. Verify all signals have been noted by the fire alarm control panel and each audible alarm device operates.

D. Contractor’s material and test certificates shall be completed for each system/sub-system/floor and signed by the installer and AHJ or other witness.

E. Training

1. General: In addition to the tests required above and witnessed by the Owner, furnish the services of a competent instructor for not less than four hours to familiarize the representatives with all operating features of the system, including control valve, drain and test valve locations and operations.

2. Provide the Owner with:

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a. A small-scale plan of the system/building showing locations of control, drain, and test valves.

b. Component manufacturers’ inspection and testing manuals.

END OF SECTION

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SECTION 220000

PLUMBING BASIC REQUIREMENTS

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Work included in 22 00 00, Plumbing Basic Requirements applies to Division 22, Plumbing work to provide materials, labor, tools, permits, incidentals, and other services to provide and make ready for Owner's use of plumbing systems for proposed project.

B. Contract Documents include, but are not limited to, Specifications including Division 00, Procurement and Contracting Requirements and Division 01, General Requirements, Drawings, Addenda, Owner/Architect Agreement, and Owner/Contractor Agreement. Confirm requirements before commencement of work.

C. Definitions:

1. Provide: To furnish and install, complete and ready for intended use.

2. Furnish: Supply and deliver to project site, ready for unpacking, assembly and installation.

3. Install: Includes unloading, unpacking, assembling, erecting, installation, applying, finishing, protecting, cleaning and similar operations at project site as required to complete items of work furnished.

4. Approved or Approved Equivalent: To possess the same performance qualities and characteristics and fulfill the utilitarian function without any decrease in quality, durability or longevity. For equipment/products defined by the Contractor as "equivalent", substitution requests must be submitted to Engineer for consideration, in accordance with Division 01, General Requirements, and approved by the Engineer prior to submitting bids for substituted items.

5. Authority Having Jurisdiction (AHJ): Indicates reviewing authorities, including local fire marshal, Owner's insurance underwriter, Owner's Authorized Representative, and other reviewing entity whose approval is required to obtain systems acceptance.

1.2 RELATED SECTIONS

A. Contents of Section applies to Division 22, Plumbing Contract Documents.

B. Related Work:

1. Additional conditions apply to this Division including, but not limited to:

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a. Specifications including Division 00, Procurement and Contracting Requirements and Division 01, General Requirements.

b. Drawings

c. Addenda

d. Owner/Architect Agreement

e. Owner/Contractor Agreement

f. Codes, Standards, Public Ordinances and Permits

1.3 REFERENCES AND STANDARDS

A. References and Standards per Division 00, Procurement and Contracting Requirements, Division 01, General Requirements, individual Division 22, Plumbing Sections and those listed in this Section.

B. Codes to include latest adopted editions, including current amendments, supplements and local jurisdiction requirements in effect as of the date of the Contract Documents, of/from:

1. State of California:

a. CBC - California Building Code

b. CEC - California Electrical Code

c. CEC T24 - California Energy Code Title 24

d. CFC - California Fire Code

e. CMC - California Mechanical Code

f. CPC - California Plumbing Code

g. CSFM - California State Fire Marshal

C. Reference standards and guidelines include but are not limited to the latest adopted editions from:

1. ABA - Architectural Barriers Act

2. ADA - Americans with Disabilities Act

3. AHRI - Air-Conditioning Heating & Refrigeration Institute

4. ANSI - American National Standards Institute

5. ASCE - American Society of Civil Engineers

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6. ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers

7. ASHRAE Guideline 0, the Commissioning Process

8. ASME - American Society of Mechanical Engineers

9. ASPE - American Society of Plumbing Engineers

10. ASSE - American Society of Sanitary Engineering

11. ASTM - ASTM International

12. AWWA - American Water Works Association

13. CFR - Code of Federal Regulations

14. CGA - Compressed Gas Association

15. CISPI - Cast Iron Soil Pipe Institute

16. ETL - Electrical Testing Laboratories

17. EPA - Environmental Protection Agency

18. FM - FM Global

19. IAPMO - International Association of Plumbing and Mechanical Officials

20. GAMA - Gas Appliance Manufacturers Association

21. HI - Hydraulic Institute Standards

22. ISO - International Organization for…