amendment 9 697DCK-23-R-00403.pdf

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(MOD 4) UPGRADE

MIAMI (ZMA) AIR ROUTE TRAFFIC CONTROL CENTER

PREACTION SPRINKLER SYSTEM 21 13 19 - 1

SECTION 21 13 19 - PREACTION SPRINKLER SYSTEM (GFE)

PART 1 - GENERAL

1.1 SUMMARY

A. This Section specifies the minimum requirements for installing, inspecting, and testing of all equipment, materials, controls, devices, and appurtenances by a state licensed Fire Protection

Installer for a fully automatic on/off fire sprinkler system. This specification applies only to the aboveground part of the system, starting from existing fire main.

1. The existing Firecycle III system is being relocated and modified to accommodate the new floor plan of the MOD 4 Area, on the First Floor and attic of the Control Wing. The

FireCycle cabinets will be relocated to the new mechanical room and the piping reconnected. Sprinkler piping will be modified to provide suitable coverage for the renovated area.

B. The sprinkler system shall be installed, and tested in accordance with NFPA 13, State of Florida

Building Code, and this specification. The on/off system shall provide alarm and supervisory devices in accordance with NFPA 13 and this specification.

C. The on/off system shall be hydraulically designed in accordance with the hazard classifications indicated in NFPA 13.

D. Supports and brackets shall be designed and installed in accordance with NFPA 13.

E. The single drain collector of each system shall be connected and routed to the building exterior.

F. Conflicting requirements: In the case of a conflict between this specification, applicable codes, accompanying drawings, and other supplemental specifications, the Contractor shall submit the matter in writing to the COR, who will provide written clarification.

1.2 REFERENCE STANDARDS

A. General: The current issues of the following documents, in effect on the date of the invitation for bid, form a part of this specification and are applicable to the extent specified herein. NFPA

Appendices shall be considered mandatory for the purposes of this specification. In referenced

NFPA publications, the advisory provisions shall be mandatory, as though the word “shall” had been substituted for “should” wherever it appears.

B. American Society for Testing and Materials (ASTM)

1. A53: Specification for welded and seamless steel pipe.

2. A153: Specification for electrical resistance welded steel pipe.

3. A795: Specification for black and hot-dipped zinc coated (galvanized) welded and seamless steel pipe for fire protection use.

4. E119: Standard test methods for fire tests of building construction and materials.

PREACTION SPRINKLER SYSTEM 21 13 19 - 2

C. National Fire Protection Association (NFPA)

1. 13: Installation of sprinkler systems.

2. 25: Standard for inspection, testing and maintenance of water- based fire protection systems.

3. 70: National Electrical Code.

4. 72: National Fire Alarm Code.

D. American National Standards Institute (ANSI)

1. B31.1: Power piping.

2. B16.3: Malleable iron threaded fittings.

3. B16.5: Steel pipe flanges and flanged fittings.

4. B16.9: Factory made wrought steel buttwelding fittings.

5. B16.21: Nonmetallic flat gaskets for pipe flanges.

6. B1.20.1: Pipe threads, general purpose.

7. B36.10M: Wrought steel pipe.

E. National Electrical Manufacturers Association (NEMA)

1. 250: Enclosures for electrical equipment

F. Underwriters Laboratories (UL)

1. Fire Protection Equipment Directory.

G. Factory Mutual (FM)

1. Factory Mutual Approval Guide.

1.3 DEFINITIONS

A. Working plans as used in this Section refer to documents (including drawings and calculations) prepared pursuant to requirements in NFPA 13 for obtaining approval of authority having jurisdiction.

B. Other definitions for fire protection systems are included in referenced NFPA standards.

1.4 SYSTEM DESCRIPTIONS

A. General: Viking Pre-Action Total-Pak Sprinkler System.

B. Sprinkler System Protection Limits: Spaces within areas indicated on drawings.

1.5 SUBMITTALS

A. Product Data for Fire Protection System Components:

1. Sprinkler piping and fittings.

PREACTION SPRINKLER SYSTEM 21 13 19 - 3

2. Valves.

3. Specialty valves, accessories, and devices.

4. Alarm and supervisory devices. Include electrical data.

5. Heat detector, detector cable and conduit.

6. Sprinklers, escutcheons, and guards. Include sprinkler flow characteristics, mounting, finish, and other data.

7. Releasing panel.

8. Hangers and bracing

B. Installer qualification: Submit proof that the installer meets the specified qualifications.

C. Material and Equipment Conformance: Where materials and equipment are specified to conform to requirements of ANSI, ASTM, FM, NFPA or UL, submit proof of such conformance. The label or listing of the specified agency will be acceptable evidence.

D. Welders Certification: Submit welders certification in accordance with ANSI B31.1, Chapter V.

E. Welding Procedures: Submit welding procedures qualified in accordance with ANSI B31.1, Chapter V.

F. Piping Hanger Schedule: Submit schedule showing location and details of pipe supports, including seismic bracing.

G. Documentation of NICET Level IV certification as a sprinkler designer or registration as a

Licensed Professional Engineer for the designer.

H. Test Plan: Provide a detailed testing plan to the COR 30 days prior to any testing. At a minimum the test plan shall include areas and dates of testing and safety precautions required during testing.

I. Test reports and certificates as described in NFPA 13 and Part 3 of this Section.

J. Record Drawings: Contractor shall provide one set of Record Drawings immediately upon completion of sprinkler system installation.

1.6 QUALITY ASSURANCE

A. Manufacturer Qualifications: Firms whose equipment, specialties, and accessories are listed by product name and manufacturer in UL Fire Protection Equipment Directory and FM Approval

Guide and that conform to other requirements indicated.

B. Listing/Approval Stamp, Label, or Other Marking: On equipment, specialties, and accessories made to specified standards.

FIRE SUPPRESSION SPRINKLER SYSTEM 13900 - 15

C. Sprinkler piping shall be shop welded per NFPA 13.

D. Listing and Labeling: Equipment, specialties, and accessories that are listed and labeled.

1. The Terms "Listed" and "Labeled": As defined in "National Electrical Code," Article 100 and NFPA 13.

2. Listing and Labeling Agency Qualifications: “Nationally Recognized Testing Laboratory”

(NRTL) as defined in OSHA Regulation 1910.7.

E. Installers Qualifications: Firms qualified to install and alter fire protection piping, equipment, specialties, and accessories, and repair and service equipment. A qualified firm is one that is experienced (minimum of 5 previous projects similar in size and scope to this Project) in such work, familiar with precautions required, and in compliance with the requirements of the authority having jurisdiction. Submit evidence of qualification to the COR upon request.

1.7 OPERATION

A. In non-operational conditions, the system piping shall be air pressurized to the check valve outlet side. Pressurized water from the trim priming line is employed in the top chamber of the flow control valve to maintain a closed clapper. Detection circuits are energized at all times maintaining closed solenoid valves in the trim lines. Should a heat detector actuate, the break contact circuit action energizes and opens the solenoid valves in the on/off fire sprinkler system trim lines. This releases the top chamber pressure, the clapper opens, water issues from the discharge chamber and the resulting increase in piping system pressure activates the pressure switches for alarm purposes. Once the temperature is sufficient, sprinklers activate as normal, and water is discharged over the affected area. When the temperature drops sufficiently, the heat detector resets itself energizing the timer unit. Water continues to flow from the system until the set time period is exceeded. At that time, the solenoid valves are de-energized to closed condition and the flow control valve clapper is closed as the pressure builds up. Alarm resetting shall be done manually on the control panel. This cycle shall repeat until such time as the fire condition is eliminated. Loss of air pressure in sprinkler system piping network shall not open the solenoid valve.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Materials: Materials and equipment, other than GFE, shall be new, and shall conform to the types and sizes required by NFPA 13 for uses shown. The on/off sprinkler system shall be listed as a complete assembly in the UL Fire Protection Directory under the classification “Special System

Water Control Valve - Flow Cycling Assemblies (VLLA). Other components shall be UL listed or FM approved. Each item shall function for extended periods of time with limited maintenance.

B. Back-Up Power Supply: The emergency back-up power supply shall be comprised of a minimum of two appropriately sized 12 V rechargeable batteries connected in series to attain the 24 VDC required by the release system. Batteries shall be of the sealed lead acid type. Batteries shall be capable of operating system in the standby mode for 24 hours and alarm mode of 2 hours at the end of the standby period or, provide 12 amp-hour batteries, whichever is greater.

C. Heat Detectors: On/off system heat detectors shall be the fixed temperature, normally closed, automatic resetting type. Nominal temperature rating shall be per the manufacturer recommendation for the temperature rating of the sprinklers used. The detector shall have an aluminum conduit connection housing, stainless steel heat probe and zinc alloy telltale. Electrical rating shall be 125 VAC, 4 amps.

1. Known Acceptable Source: Firecycle® Multi-Cycle OH Detector Model C.

D. Heat Detector Cable: High temperature, flame resistant detector cable shall be a UL listed Power

Limited Fire Protection Signaling Cable and shall be installed in conduit. Conductor shall be two

(2) 16 AWG solid bare soft copper. Insulation shall be silicon rubber and jacket shall be thermoplastic with zero halogen for use in rigid steel conduit.

1. Known Acceptable Source: Firecycle III FPL Detector Cable (FC III & FCIIIOH).

E. Solenoid valves: On/off system solenoid release valves shall be constructed of a 1/2 inch brass body; with a stainless steel core, core tube, plugnut and springs. Solenoid valve shall have a maximum working pressure of 175 psi. Electrical rating shall be 24 VDC. There shall be one normally closed and one normally open solenoid valve as required for a cycling single interlock preaction system. Solenoid valves shall be listed for use with the flow control valves.

F. System check valves: The on/off system check valve shall be a combination swing-check/drain unit for use in a system riser. Body shall be ductile iron with flanged or grooved end connections.

The swing clapper rubber shall be EPDM. With the exception of the seat which shall be brass, other internal parts shall be stainless steel, as shall be the access plate. The body shall be tapped

3 inch NPT for drain connection (2-1/2 inch NPT for 2-1/2 inch valve); 1/2 inch NPT for air release connection to the solenoid valves; 1/4 inch NPT for pressure gage connection.

1. Known Acceptable Source: Viking Model E-1 or F-1.

G. System valves: The system valves shall be OS&Y gate or butterfly type, for use in piping 2 1/2 inches and larger, with a working pressure rating of 175 psi. Valves shall be UL listed and FM approved for use in fire protection systems. Valves shall include manual operator with handwheel and tamper switch.

1. OS&Y gate valves: OS&Y gate valve, with iron body, designed to fit between ANSI

B16.5, Class 150 flanges.

2. Butterfly valves: Wafer-Body designed to fit between ANSI B16.5, Class 150 flanges.

H. Angle valves: Drain and trim angle valves shall be screwed bronze body rising stem with screw-in bonnet.

I. Flow Control Valve: The flow control valve shall be of the configuration application intended, quick opening differential diaphragm type with a spring loaded floating clapper. Valve shall be capable of automatic on/off control through trim lines specifically designed for an on/off type sprinkler system. Diaphragm and seat rubbers shall be field replaceable. Valve body and cover shall be ductile iron and be tapped for all required drain and trim connections. Diaphragm and seat rubbers shall be EPDM. Retaining screws, spring and seat rubber reinforcing ring shall be stainless steel. The clapper, damp ring and seat shall be bronze. The flow control valve shall be provided with the necessary trim package required by the manufacturer for use on a cycling single interlocked preaction system.

1. Known Acceptable Source: Viking Model H-1.

J. Auto ball drip: Trim and drain auto drip valves shall be 1/2-inch bronze body.

K. Ball Valve (compressed air): 2 inches and smaller. Cast bronze body conforming to ASTM B584 with stainless steel ball and reinforced 15 percent glass fill seal, stems made from brass conforming to ASTM B16. Designed for 150-psi non-shock working pressure.

L. Identification signs: Signs shall be made of a durable metal that can withstand the ambient conditions at the job site. Signs shall have a red background with white lettering as outlined in

NFPA 13. Signs shall be provided for alarm valve, system riser, auxiliary drain, inspectors test, main drain, and auto sprinkler.

M. Sprinklers:

1. Sprinkler shall be upright, pendant (concealed) or sidewall type for the specific application.

Pendent and sidewall sprinklers shall be piped using return bend arrangement. Where conditions require, temperature ratings shall be increased to intermediate or high levels as indicated in NFPA 13. Sprinklers in Light Hazard areas shall be quick response.

2. Sprinklers shall be quick response fusible link type with a temperature rating of 165 degrees

F, 1/2 inch NPT standard thread connection, brass construction, and nominal K-factor

5.6. Sprinklers in areas without ceilings to be natural finish.

a. Known Acceptable Source: Viking Quick Response Fusible Element Upright and

Pendent Sprinklers (VK301 and VK303).

3. Spare sprinklers and sprinkler wrenches shall be provided as required by NFPA 13 for each type of sprinkler installed. A storage cabinet for spare sprinklers and wrenches shall be provided at each riser.

N. Sprinkler guards: Sprinklers below 7 ft above finish floor level or subject to the possibility of physical damage, shall be provided with sprinkler guards:

O. Supervisory Components and Alarms:

1. Pressure switches: The pressure switch shall be compatible with the flow control valve trim. The switch shall reset automatically on pressure drop. The switch shall provide single pole double throw contacts and be suitable for connection to the on/off system control panel. Each switch shall be monitored by the FACP through addressable interface devices.

a. Known Acceptable Source: Viking Model A-1.

2. Tamper switches: The tamper switch shall be used to provide supervision of the open position for all control valves. The switch shall provide single pole double throw contacts and be housed in the manufacturers standard enclosure. Each switch shall be monitored by the FACP through addressable interface devices.

2.2 PIPE AND FITTINGS

A. Above ground system pipe shall be galvanized steel, black steel shall be used in portions of the system that are “wet” standard weight, schedule 40. Pipe 2 inches and smaller shall be threaded to ANSI B1.20.1. Pipe 2 1/2 inches and larger may be joined with mechanical grooved couplings, or flanged in accordance with ANSI B16.5. Main piping may incorporate butt- welded fittings.

B. Fittings shall Conform as Indicated:

1. Threaded fittings: Black malleable iron, Class 150, ANSI B16.3.

2. Grooved couplings and mechanical fittings: Malleable iron, 300 psi working pressure.

Coupling gasket material shall be butyl rubber. Grooved couplings and mechanical fittings shall be UL listed or FM approved for the intended use. Provide flexible couplings as required by NFPA 13 for seismic protection of piping.

3. Flanged fittings: Steel 150-lb. class to B16.5. Cast iron is not acceptable. Gaskets to be red rubber 1/16 inch to ANSI B16.21.

4. Welded fittings: Wrought steel manufactured to ANSI B16.9.

5. Flexible pipe couplings required for Seismic Criteria: Shall permit 1 degree or more of angular movement at the grooved connection without harm to the pipe.

6. All fittings in the “dry” portion of the system shall be galvanized.

2.3 HANGERS AND SUPPORTS

A. Hangers shall be of ferrous material and shall conform to the requirements of NFPA 13.

B. Support all horizontal piping as outlined in NFPA 13. Provide swivel split ring hangers with rod supports.

C. Support furred-in vertical piping by means of heavy wrought iron clamps on wall bracket or at floors. Where vertical piping is exposed, supports shall be from wrought iron clamps suspended from the underside of the slab with hanger rods.

D. Hangers shall be of a type approved by NFPA, UL, or State of Florida Building Code and be approved and acceptable to the COR for use in this type of installation.

2.4 PIPE SLEEVES AND PLATES

A. For concrete walls and floors provide ASTM A53, Type E, Grade A, schedule 40 galvanized pipe with plain ends.

B. Pipe sleeves shall be sized in accordance with seismic requirements of NFPA 13.

C. Where sleeves are installed in floors or walls with membranes provide membrane clamp

D. Provide chrome plated brass setscrew flanges at finished floors, walls and ceilings.

2.5 PRESSURE GAGES

A. Pressure Gages: UL 393, 3-1/2 to 4-1/2 inches diameter dial with dial range of 0-250 psig.

PART 3 - EXECUTION

3.1 GENERAL

A. All required parts of the on/off fire sprinkler system shall be installed so that the systems may be thoroughly drained and in accordance with commercial practices and the equipment manufacturers recommendations. Auxiliary drains at the end of branch lines are not allowed.

Piping shall be sloped so that the system drains at the main drain. If it is determined that auxiliary drains are required, they shall be piped back to a location approved by the COR.

B. Install work in such a manner that it will conform to the structure, avoid obstructions, preserve headroom, and keep openings and passageways clear.

C. Fire protection work shall in all cases, consider the work of other trades so that the best arrangement of equipment, piping, and conduit will be obtained.

D. Cutting, channeling, chasing, or drilling of floor, walls, partitions, ceilings or other surfaces, if necessary for the proper installation, support, or anchorage of the piping or other work, shall be done to prevent damage to the existing structure. Damage to building, piping, or equipment shall be repaired or refinished.

E. Pipe used shall be free of corrosion and clean. Cut pipe ends shall be burred to a smooth finish.

No damaged pipe is to be installed. Grooved pipe shall be cut grooved and not rolled. Pipe welding shall be carried out at the shop. When approved, welding shall conform to requirements of NFPA

51B. The piping system shall be thoroughly flushed clean upon completion of installation.

Auxiliary drains at the end of branch lines are not allowed unless approved by the COR.

3.2 PIPE INSTALLATION

A. Piping shall be protected from damage in accordance with NFPA 13 requirements. Metal pipe supports, hangers, clamps, brackets, and other pipe support accessories for sprinkler system piping shall meet the requirements of NFPA 13, and shall be suitable for forces imposed by system pressures, thermal expansion and contraction, and other external forces.

B. On/off fire sprinkler system piping shall be installed to the slope requirements stipulated for dry pipe systems in NFPA 13. Installation of all materials and equipment shall be in accordance with

NFPA 13, this specification, and as indicated.

C. Care shall be taken when installing piping to avoid possible restrictions due to foreign matter. All piping shall be installed so that the system may be drained and flushed in accordance with NFPA

13.

D. For penetrations of concrete floors or walls sleeves shall be provided. Wall sleeves shall be cut flush with wall surfaces, and shall project 3 inches above and below floor surfaces. Sleeves may be galvanized steel or cast iron pipe, or galvanized sheet metal with longitudinal locking seam.

The clearance between sprinkler piping and pipe sleeves through walls and floors shall be not less than that allowed by NFPA 13 for protection of piping against damage from earthquakes.

E. UL listed through-penetration firestop systems: Provide at sprinkler pipe penetrations through fire rated floors and walls in accordance with requirements of Section 078410, “Through- Penetration

Firestopping Systems”.

3.3 SPRINKLERS

A. Sprinklers shall be located so as to obtain the specified density and area coverage requirements for the area hazard classification. Sprinklers shall be installed only in the position for which they are designed. Pendent and sidewall sprinklers shall be installed on return bend piping arrangements. Sprinklers shall not be altered in any respect or have any type of ornamentation or coatings applied after shipment from the manufacturer. Sprinklers installed where they might receive mechanical damage shall be protected with approved guards.

3.4 VALVES

A. Valves shall be installed in an accessible location and in accordance with NFPA 13 requirements for pre-action systems. Tamper switches shall be provided on all water supply and control valves.

3.5 TEST AND DRAIN CONNECTIONS

A. Test connections shall be provided and installed on sprinkler systems in accordance with NFPA

13 requirements for pre-action systems. The test connection valve shall be readily accessible.

Provisions shall be made for piping the drain connection to the exterior or approved receptors.

Splash blocks shall be provided at all drain exit locations.

3.6 HEAT DETECTORS

A. Heat detectors: Heat detectors and heat detector wiring shall be installed in accordance with manufacturer recommendations and NFPA 72 requirements. Support detectors from building structure. Provide pipe nipples, couplings, escutcheons, and appurtenances for each detector. In areas with suspended ceilings, the heat detectors shall be installed in the semi-recessed configuration per the manufacturer installation requirements. Heat detectors shall be located to cover an area no greater than recommended by the manufacturer for the detector furnished.

B. Coverage by a detector shall not exceed a maximum area of 1600 sq ft for smooth, flat ceilings

(40 ft by 40 ft), provide coverage as indicated on the drawings, spacing has been reduced in certain areas. Modify spacing per NFPA 72 criteria and manufacturers criteria for other than smooth ceilings. Coordinate detector locations with baffles, grilles, diffusers, registers, light fixtures, and other equipment. Install heat detector wiring in conduit. The minimum size conduit, for detector wiring only, shall be 1/2 inch. All other conduit shall be a minimum of 3/4 inch.

3.7 WIRING

A. Wiring: Wiring shall be installed in accordance with NFPA 72 for Class B circuits and the manufacturers recommendations. Wire all thermal detectors in series, T-Tapping is not allowed.

Viking wire nuts are the only acceptable means of connecting wires. All wiring shall be installed in conduit.

3.8 PAINTING

A. Sprinklers shall be covered with plastic sandwich-type bags to ensure that no sprinklers are painted. Bags shall be removed after painting. All exposed piping shall be painted red, piping concealed above finished ceilings and in chases shall be have a 2 inch red stripe painted every twenty feet and on each side of wall where a wall is penetrated.

3.9 TESTING

A. General:

1. Tests shall be static compressed air test, and the system shall be made tight such that no loss of pressure occurs during a 24 hour period when the system is pressurized at 40 psi gage.

2. Following the air test, the piping shall be hydrostatically tested at the greater of 200 psi or the system pressure plus 50 psi for a period of not less than 2 hours.

3. All material and equipment furnished and work done will be continuously inspected by the

COR. Any material, equipment, or work approved and later found to be defective shall be replaced by the Contractor at his own expense. The Contractor shall ask for approval only after his own inspection and after he is satisfied that he has met all specified requirements.

4. All tests shall be conducted as required by and in accordance with NFPA 13 requirements.

5. All tests shall be performed in the presence of the COR. Test date shall occur not sooner than 7 days after approval of test procedure by the Government. Test procedure review period required by the Government shall be not less than 30 days. Test date scheduling shall not be submitted until test procedures have been approved.

6. Perform on/off system tests per manufacturers test procedures.

B. Testing Equipment: Equipment, material, and labor for the tests shall be provided by the

Contractor. If tests, or portion thereof, fail, the Contractor shall submit the matter in writing to the COR, who will provide written clarification or instructions on how to proceed.

C. Piping System Acceptance Test

1. The Sprinkler system piping shall be compressed air tested and hydrostatically tested. The pressure shall be measured at the low point of each system or zone being tested.

2. A thorough visual inspection of the installed system and hazard area shall be performed.

The piping, operational equipment and sprinklers shall be inspected for proper size, supports, and location.

3. Upon completion of the work and tests, secure approval from the COR.

D. Electrical system acceptance test:

1. Verify proper operation of the automatic on/off sprinkler system control system including valves, pressure switches, indicator lights, backup power supply, heat detectors, alarm detection circuits, and alarm outputs to FACP according to manufacturers written test procedures and NFPA requirements.

3.10 CLEANING

A. Clean dirt and debris from sprinklers. Replace sprinklers having paint other than factory finish with new sprinklers. Cleaning and reuse of painted sprinklers is prohibited.

END OF SECTION 21 13 19