Section 15330 FIRE PROTECTION SPRINKLER SYSTEM

Section 15330

FIRE PROTECTION SPRINKLER SYSTEM

PART 1 - GENERAL

1.1 THE REQUIREMENT

A. The CONTRACTOR shall furnish all tools, equipment, materials, and supplies and shall perform all labor required to complete the Work as indicated on the Drawings and specified herein.

B. The Drawings indicate the extent and general arrangement of the systems. If any departure from the Drawings is deemed necessary by the CONTRACTOR, details of such departure and the reason therefore shall be submitted to the ENGINEER for review. No such departure shall be made without the prior written concurrence of the ENGINEER.

C. This section covers the design, furnishing, and installation of an automatic wet pipe fire protection system, including all associated piping, valves, fittings, controls, accessories, and appurtenances necessary for proper operation of the system.

1.2 RELATED WORK SPECIFIED ELSEWHERE

A. The requirements of the following sections and divisions apply to the Work of this section. Other sections and divisions of the Specifications, not referenced below, shall also apply to the extent required for proper performance of this Work.

1. Section 01332, Seismic Design Data

2. Section 02200, Earthwork

3. Section 02666, Water Pipeline Testing and Disinfection

4. Section 13850, Fire Alarm System

5. Section 15000, Piping, General

6. Section 15005, Ductile Iron Pipe

7. Section 15010, Mill Piping – Exposed and Buried

8. Section 15020, Pipe Supports

9. Section 15030, Piping Identification Systems

10. Section 17034, Gauges

1.3 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS

A. All Work specified herein shall conform to or exceed the applicable requirements of the referenced portions of the following publications to the extent that the provisions thereof are not in conflict with other provisions of these Specifications.

B. Comply with the applicable editions of the following codes, regulations and standards.

1. Codes and Regulations:

CCR California Code of Regulations, Title 24, Part 2, California Building Code (CBC)

CCR California Code of Regulations, Title 24, Part 3, California Electrical Code

NFPA 13 Standard for the Installation of Sprinkler

Systems

NFPA 70 National Electrical Code (NEC)

2. Other Standards:

FM FM Approvals (formerly, Factory Mutual

Research Corporation)

UL Underwriters Laboratories

C. Comply with the applicable reference Specifications as directed in the General

Requirements and Additional General Requirements.

1.4 CONTRACTOR SUBMITTALS

A. Submittals shall be made in accordance with the General Requirements, Additional

General Requirements and as specified herein.

B. Provide the certifications and other submittal documentation that confirm compliance with Section 01332, Seismic Design Data, this Specification and Paragraph entitled “Seismic Requirements” of this Specification.

C. Shop drawings and other submittals shall include all information required to indicate compliance of system with design criteria and other Contract requirements:

1. Coordination with structural elements, lighting fixtures, HVAC outlets, ductwork

2. Underground plan and riser plan.

3. Submit dated, certified reports of the following tests:

a. Flow test.

b. Pressure Tests: Static and residual.

4. Engineering Calculations.

5. Product data for the following:

a. Indicator valves. b. Other valves.

c. Fire department connection. d. Gauges.

e. Pipe and fittings. f. Hangers.

g. Alarm and supervisory monitoring devices. h. Alarm bell.

i. Sprinkler heads.

6. Miscellaneous Data:

a. Concise instructions for emergency shutdown of each section of system and for entire system.

b. Valve chart locating and numbering all control valves and visually identifying area (section) controlled by each. Use color to permit rapid emergency comprehension.

c. Head removal and replacement instructions.

d. Manufacturer's data for each piece of equipment furnished.

1.5 QUALITY ASSURANCE A. General:

1. Conduct tests as recommended in NFPA 13.

2. Follow code-required observation during testing.

3. Hydrostatic Tests:

a. Test system or parts of system at a minimum 200 pounds per inch hydrostatic pressure or system pressure plus 50 pounds per inch, whichever is higher for a minimum of two (2) hours with no change in pressure indicated.

b. Repair leaks.

c. Retest until all criteria are met.

4. Acceptance Tests:

a. Conduct code-required flow tests of completed systems. b. Leave system in operating condition.

B. CONTRACTOR Qualifications:

1. Comply with the requirements for the certifications, licenses, training, skills, experience, and other qualifications specified in Paragraph entitled “Seismic Requirements” of Article entitled “Site Conditions” of this Specification.

1.6 SITE CONDITIONS

A. Seismic Requirements:

1. Equipment and Appurtenances:

a. The equipment and appurtenances to be furnished under this Contract shall comply with the seismic requirements of the applicable California Building Code and the seismic provisions of the General Requirements, this Specification and Section 01332, Seismic Design Data; or, to the extent that such standards are not articulated or clear in the applicable California Building Code and the seismic provisions of the General Requirements, this Specification and Section

01332, Seismic Design Data, as determined by the ENGINEER, then the equipment, appurtenances shall be as outlined in Chapter 16 of the 200

Building Code, for Occupancy Category I, Essential Services, in Seismic Zone

4; or equivalent, as established in the sole discretion of the ENGINEER, documented in writing.

b. CONTRACTOR shall submit the related seismic calculations, test reports, or extrapolated test data to demonstrate compliance with the above for ENGINEER’s acceptance in accordance with the General Requirements, Section 01332, Seismic Design Data, and as specified in this Specification.

c. Seismic calculations, test reports, and/or test data reports shall be certified by a Professional Engineer registered in the State of California.

d. CONTRACTOR shall submit manufacturer’s certification that all equipment and auxiliaries are capable of operating and performing their intended function before, during, and after the design seismic event without structural failure or deformation, malfunction, interference, or abnormal rubbing movement of components.

e. In case of a conflict between this Specification and Section 01332, Seismic

Design Data, the more stringent requirements shall govern.

2. Installation:

a. The installation of the equipment and appurtenances furnished under this Contract shall comply with Section 01332, Seismic Design Data, and this Specification.

b. In case of a conflict between this Specification and Section 01332, Seismic

Design Data, the more stringent requirements shall govern.

1.7 DESIGN CRITERIA

A. Governing Standards and Codes: All Work covered by this section shall be performed in accordance with all the applicable federal, state and local codes, laws, and regulations, including, but not limited to, those indicated in this Specification. In case of conflict between these Specifications and any code, law, or regulation, the one that is the most restrictive shall govern.

1. Local authorities:

a. City of Fountain Valley, CA, Fire Department

B. Design of Sprinkler Systems: NFPA 13 requirements specified herein.

C. Water Distribution: Distribution shall be uniform throughout the area in which the sprinkler heads will open. Variation in discharge from individual heads in the hydraulically most remote area shall be between 100 percent and 200 percent of the specified density.

D. Density of Application of Water: Size pipe to provide the specified density when the system is discharging the specified total maximum required flow.

E. Sprinkler Discharge Area: Area shall be the hydraulically most remote 3,000-square- foot area as defined in NFPA 13.

F. Outside Hose Allowances: Hydraulic calculations shall include an allowance for outside hose streams per NFPA 13.

G. Friction Losses: Calculate losses in piping in accordance with the Hazen-Williams formula with 'C' value of 120 for steel piping, 150 for copper tubing, and 140 for cement- lined ductile-iron piping.

H. Location of Sprinkler Heads: Per NFPA 13.

1.8 VALVE CHARTS AND INSTRUCTIONS

A. Provide framed, glazed copies of valve chart and emergency shutdown instructions. Mount to wall in acceptable location.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Pipe and Fittings:

1. Fire Service Main – Exterior (5 feet outside building):

a. Pipe and Fittings: Mechanical joint, cement-lined ductile iron, as specified under Section 15005, Ductile Iron Pipe.

b. Exterior Piping: Extend into building minimum of 18 inches before connecting to interior piping.

2. Fire Service Main – Interior Piping from Exterior Service up to Fire Sprinkler

Alarm Check Valve:

a. Pipe: Schedule 40 galvanized steel.

b. Fittings: Galvanized 150-pound malleable iron, screwed or Victaulic full-flow galvanized fittings with Style 77 couplings.

3. Drain Piping:

a. Pipe: Schedule 40 galvanized steel.

b. Fittings: Galvanized, malleable iron, screwed.

4. Fire Department Connection:

a. Pipe: Schedule 40 galvanized steel.

b. Fittings: Galvanized, malleable iron, screwed.

5. Reducing Fittings:

a. One-piece pipe size reducing fittings. Same specifications as other fittings for type of pipe.

b. Bushing reductions not acceptable.

B. Pipe Supports: Provide pipe support and bracing to comply with Section 15020, Pipe

Supports, NFPA 13, and California Building Code regarding seismic restraint. C. Valves:

1. Manufacturer: Stockham, Viking, Grinnell, Or Equal. Manufacturer's figure numbers specified are for type, quality, and features desired. All valves shall be UL- listed for fire protection service and Factory Mutual-approved.

2. Control Valves: Outside screw and yoke gate valves or butterfly valves, locked open, with breakable shackle lock.

3. Drain Valves:

a. Angle globe, Stockham No. B-222, Or Equal from Viking, Grinnell. b. Straight, globe, Stockham No. B-22, Or Equal from Viking, Grinnell.

4. Check Valves: UL-listed, swing check installed horizontally, Stockham

No. G-940, Or Equal from Viking, Grinnell.

5. Indicator Valves: UL-listed, as manufactured by Mueller, Grinnell, Or Equal, locked open, with breakable shackle lock.

D. Fire Department Connection: Potter-Roemer, Croker Or Equal, all bronze, Siamese, wall mount or freestanding as indicated. 4-inch F.I.P.T. outlet, two 2-1/2-inch spring back check valved inlets, drain cock, caps and chains, threads per fire department requirements. Provide cast sign plate reading "AUTOSPKR." All parts, including exposed freestanding barrel, shall be polished chrome plated unless noted otherwise.

E. Alarm Check Valve: UL-listed, installed on riser, suitable for variable pressure, complete with retard chamber and approved pressure switches for alarm bell and for electrical supervisory system.

F. Alarm Bell: UL-listed, approved 10-inch electric bell, complete with suitable identification sign. Provide for each riser.

G. Waterflow Indicator Switches:

1. Paddle type, inserted into horizontal piping adjacent each section control valve. Paddle to actuate a pneumatic time-delay mechanism between the paddle stem and the microswitch to operate and either open or close an electrical circuit. Time delay to be adjustable from 0 to 90 seconds.

2. Microswitches to be rated at 7.5 amperes, 120 volts, and wired to either open or closed-circuit operation.

3. Paddle to be constructed of corrosion-resistant Monel "K" metal. The body to be constructed of cast metal with metal cover.

H. Valve Supervisory Switches:

1. Provide tamper switches on all control valves with alarm signal to register on sprinkler alarm panel.

2. Tamper switches to be manufactured by Potter, Notifier, Or Equal. I. Sprinkler Heads:

1. Type: Miniature bulb type with Teflon spring type coated water seal, Viking

Model M, or exposed eutectic solder link, Viking Model H, Or Equal from Reliable.

a. All heads shall be corrosion proof.

2. Manufacturers: Viking, Reliable, Or Equal.

3. Configurations:

a. "Flush": Small pendant head partially concealed within the ceiling leaving only the link exposed.

b. "Recessed": Small frame pendant head recessed into canopy that is recessed into ceiling.

c. "Pendant": Small frame exposed head with exposed telescoping canopy that installs tight against ceilings. Provide protective devices when ceilings are less than 8 feet in height.

d. "Sidewall": Special frame head, with adjustable canopy, for installation on vertical or near-vertical surface.

e. "Upright": Standard frame head for mounting in upright position above piping system.

4. Finishes: Unless otherwise indicated, flush, recessed pendant and sidewall heads and canopies, polished chrome plate or white; upright head, rough brass.

5. Locations: Unless otherwise indicated:

a. Flush: Finished space except service areas. Includes corridors and toilets. b. Pendant and Recessed: Finished service areas.

c. Sidewall: Where required by NFPA 13 or by code. d. Upright: Spaces without ceilings.

e. High-Temperature Fusible Links:

(1) Heads within 12 inches of surface-mounted fluorescent lighting. (2) Where otherwise indicated.

J. Sleeves: Shall comply with Section 15000, Piping, General. Provide sleeves for passage of pipe through floors, walls, and partitions. Provide appropriate type for purpose. Seal in an acceptable manner against water, fire, or sound, depending on type of construction penetrated.

K. Escutcheons: Provide at passage of pipe through walls, partitions, and ceilings. Prime coated steel, split ring of set screw type, at concealed or service areas. Polished chrome cast brass split ring or set screw type when exposed to view.

L. Pressure Gauges:

1. Provide per NFPA 13.

2. Comply with Section 17034, Gauges.

3. Brass case, 4-1/2-inch dial.

4. To register twice the working pressure of the system.

M. Identification: Identification of valves and piping shall be in accordance with

Section 15030, Piping Identification Systems. N. System Design Sign:

1. Locate adjacent to alarm check valves.

2. Identify system as hydraulically designed.

3. State Basis of Design: Discharge density over area of discharge. O. Valve Locks:

1. Provide all-brass padlock(s) with break-away shackle, multiple locks keyed alike, master keyed to building key system, with chains, for each lockable control valve.

2. Provide to OCSD two keys durably tagged and marked for identification. P. Alarm Panel: See Section 13850, Fire Alarm System.

2.2 PREPARATION, LAYOUT, AND DETAILING A. Underground Piping:

1. Prior to trenching, obtain ENGINEER's acceptance of dimensioned location of riser(s), indicator valve(s), and fire department connection(s).

2. Provide thrust blocks and anchorage at elbows, bends, and tees per NFPA 13. B. Risers: Arrange riser components as recommended in NFPA 13.

C. Overhead Piping: Provide/coordinate clearance for:

1. Installation of HVAC ductwork, heaters, fan coils, and other installations.

2. Lighting fixtures.

3. Plumbing mains. D. Pipe Support:

1. Provide hangers, supports, and bracing as recommended in NFPA 13. All hangers, supports, bracing, and anchors shall be galvanized steel.

2. Comply with code requirements for seismic bracing.

E. Drains:

1. Unless otherwise indicated, system and test drains shall discharge into receptors connected to a sewer or storm drain system.

2. Do not drain onto unpaved areas or areas that do not drain. Coordinate installation of receptors with plumbing installer.

F. Miscellaneous Fittings:

1. Flow Indicator Switches: Locate in horizontal piping adjacent to section control valves and 18 inches clear of nearest fitting.

2. Alarm Bell(s):

a. Locate 11 feet above grade.

b. Obtain ENGINEER's acceptance of dimensioned location.

3. Valve Tamper Switches:

a. On OS&Y valves, locate switch on valve stem.

b. On butterfly valves, locate switch on gear operator.

G. Concealment: Except where specifically indicated otherwise, conceal or prepare for concealment piping, fittings, etc., in those spaces where wall and/or ceiling surfaces are indicated or implied to receive present or future finish materials.

H. Heads:

1. Spacing/Coverage: As required by system design.

2. Lay out with respect to:

a. Lighting fixtures.

b. HVAC diffusers/returns.

c. Suspended ceiling grid/panel pattern. d. Center of room/space.

e. Longitudinal axis of room/space.

3. Align heads in row(s) within +1/2 inch of straight line.

4. Align heads laterally in adjacent rows to same tolerance of alignment.

5. Prevent interference of heads with door swing.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Acceptances: Prior to installation, obtain following acceptances of proposed system design and equipment:

1. City of Fountain Valley, CA, Fire Department

B. Trench and Backfill:

1. Perform as specified in Section 02200, Earthwork.

2. Perform all trenching under the observation of the ENGINEER, as specified in Section 02200, Earthwork. Compaction tests will be performed per direction of the ENGINEER. No backfilling will be allowed until test results of pipe testing and compaction tests have been accepted by the ENGINEER.

C. Underground piping shall be installed according to Section 15005, Ductile Iron Pipe, and as follows:

1. Install thrust blocks.

2. Bed pipe solidly on grade.

3. Anchor to thrust blocks.

4. Extend pipe 6 inches minimum above floor at risers.

5. Install post indicator valves and fire department connections.

6. Partial backfill to further anchor pipe shall be installed prior to testing and flushing. Keep joints exposed to check leaks.

7. Seal openings and perform hydrostatic pressure test under required observation.

8. Flush underground system prior to installing risers.

D. Risers: Assemble components as recommended in NFPA 13.

E. Pipe Support: Install in accordance with Section 15020, Pipe Supports, and as recommended in NFPA 13.

F. Overhead Piping Systems shall be assembled according to Section 15010, Mill

Piping - Exposed and Buried, and as described below:

1. Slope:

a. Except for pendant drops, provide for drainage of entire system. b. Prevent traps.

c. Prevent air pockets.

2. Flushing: Prior to installation of heads, seal openings and flush entire system to remove foreign matter.

3. Hydrostatic Test: All hydrostatic testing of piping shall be performed in the presence of the ENGINEER and be subject to ENGINEER’s acceptance. In addition to any testing and acceptance/approval required by these Specifications, the CONTRACTOR is responsible for providing testing as required and obtaining approval from the following local authorities:

a. City of Fountain Valley, CA, Fire Department

G. Disinfection:

1. Disinfecting Solution: Water solution containing chlorine at the minimum concentration of 50 parts per million.

2. Fill entire fire protection system with disinfecting solution.

3. Allow to stand 6 hours minimum.

4. Flush system until chlorine content is at or below content of local water supply. H. Heads:

1. Install swing joints required for exact alignment of heads.

2. Nipple length shall permit head to draw canopy tight against mounting surface without deforming canopy.

3. Canopies shall telescope to or be adjusted to midpoint in the adjustment range.

4. Replace nipples of incorrect length.

5. Heads shall draw snug against canopies.

I. Identification: Install signs and tags in required locations prior to code-required test inspection of the system.