Attachment 1 - Specifications.pdf

SEATTLE ARTCC (ZSE) 22 MARCH 2017

CWB AND MAJOR MECHANICAL SUSTAINMENT PROJECT

AUBURN, WASHINGTON FINAL DESIGN SUBMITTAL

FIRE SUPPRESSION SYSTEMS 21 13 13-1

SECTION 21 13 13 – FIRE SUPPRESSION SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section specifies the minimum requirements for designing, furnishing, 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. Existing Firecycle systems are currently installed and protecting the Control Wing area basement level. Modification to the fire suppression systems may be required to coordinate with any impact of architectural, mechanical or electrical changes in the area.

Existing systems shall be extended as indicated on drawings.

2. The Contractor shall investigate the physical condition of the existing Firecycle systems in the Control Wing basement level for issues such as corrosion. The Contractor shall be responsible for development of the inspection plan, oversight of the inspection, and interpretation of results. Based on results, further determination on corrective action shall be made by COR. Contractor shall provide change order which includes all contingencies.

3. The sprinkler systems shall be designed, installed, and tested in accordance with NFPA 13, International Building Code, and this specification. The on/off system shall provide alarm and supervisory devices in accordance with NFPA 13 and this specification.

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

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

6. 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.

7. Electric alarm equipment shall be provided under this Section. Connection of control panels and thermal detectors shall be performed in accordance with Section 28 31 00 “Fire Detection and Alarm.”

1.2 AIR TRAFFIC CONTROL EQUIPMENT RESTRICTIONS

A. Job conditions: Do not permit interference with the air traffic control function at the ARTCC.

Schedule and plan work to permit normal facility operations to continue with a minimum of disruption. Access to the facility shall be kept unobstructed at all times. If interference with

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the existing facility operations seems to be unavoidable, advise the COR 10 days prior to such interference. Proceed as directed by the COR.

B. Equipment Shutdown: Each ARTCC maintains air traffic control continuously without shutdown. Various techniques are employed to achieve maximum system availability.

Mechanical and electrical systems in direct support of air traffic operation and environmental systems have redundant configurations. Shutdown of equipment shall be scheduled with the COR at least 10 days prior to the contractor's need. The reliability of mechanical and electrical systems is compromised when redundant equipment is not available. Every effort will be made by the Government to allow work to be accomplished during the Contractor's normal working hours; however, the COR may require that certain equipment be shut down during off normal hours and be restored to service immediately after this period. Government personnel shall accomplish shutdown of equipment.

C. Interruptions of the existing fire suppression systems shall be requested in writing to the COR at least five (5) days prior to the Contractor’s needs. The fire suppression systems, or portions thereof, shall only be taken out of service during off-normal hours, for intervals of no more than four (4) hours out of every eight (8) hours. The COR shall be contacted if these criteria can not be met, so alternate protection can be provided.

1.3 REFERENCE STANDARDS

A. General: Unless a specific edition is indicated, 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. International Code Council

1. International Building Code (IBC) (2015 Edition)

C. 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.

D. National Fire Protection Association (NFPA)

1. 13: Installation of Sprinkler Systems (2013 Edition).

2. 25: Standard for Inspection, Testing and Maintenance of Water Based Fire Protection

Systems (2014 Edition).

3. 70: National Electrical Code (2014 Edition).

4. 72: National Fire Alarm and Signaling Code (2013 Edition).

E. American National Standards Institute (ANSI)

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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.

F. National Electrical Manufacturers Association (NEMA)

1. 250: Enclosures for Electrical Equipment

G. Underwriters Laboratories (UL)

1. Fire Protection Equipment Directory.

H. Factory Mutual (FM)

1. Factory Mutual Approval Guide.

1.4 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.

1.5 SYSTEM DESCRIPTIONS

A. Control Wing Basement: Modify the existing Firecycle cycling single interlocked preaction type systems as necessary to coordinate with any impacting architectural, mechanical and electrical changes in the Control Wing Basement area. Modifications to the Firecycle system shall include, but not be limited to: automatic sprinkler system, Firecycle detection system, fire control panel timer and back-up battery source power supply.

B. Sprinkler System Protection Limits: Spaces within areas indicated, including closets, the top and bottom landing of each stair, and special applications areas.

1.6 SYSTEM PERFORMANCE REQUIREMENTS

A. Design and obtain approval from COR for fire protection systems specified

B. If system / piping is modified, perform a hydrant flow test, and hydraulic calculations. The fire protection system shall be hydraulically designed to operate within the limitations of the available water supply. Base hydraulic calculations on the results of water flow test with a safety factor of 7 psi.

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C. Hydraulically Design Sprinkler Systems according to Sprinkler System Occupancy Hazard Classifications:

1. Office, Computer and Public Areas: Light hazard.

2. Storage Areas: Ordinary hazard, Group 1.

3. Mechanical Rooms: Ordinary hazard, Group 1.

4. Service Areas: Ordinary hazard, Group 1.

5. Boiler Room: Ordinary Hazard, Group 2.

D. Minimum Density Requirements for Automatic Sprinkler System Hydraulic Design:

1. Light Hazard: 0.10 GPM over 1500 sq. ft. area.

2. Ordinary Hazard, Group 1: 0.15 GPM over 1500 sq. ft. area.

3. Ordinary Hazard, Group 2: 0.20 GPM over 1500 sq. ft. area

E. Maximum Protection Area of Coverage per Sprinkler shall be in Accordance with the Value indicated in NFPA 13:

1. Light Hazard: 225 sq. ft. / sprinkler.

2. Ordinary Hazard: 130 sq. ft. / sprinkler.

F. Components and Installation: UL listed for the following maximum working pressure ratings except where indicated otherwise.

1. Sprinkler Systems: 175 psig.

1.7 SUBMITTALS

A. Annotated Product Data for Fire Protection System Components:

1. Sprinkler piping and fittings.

2. Specialty valves, accessories, and devices.

3. Thermal detector, detector cable and conduit.

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

5. Air compressor.

6. Hangers and bracing.

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

C. Shop Drawings: Submit piping layout, hydraulic and battery calculations for approval. Show dimensions, locations of sprinklers, fittings, hangers, accessories and other similar items of the system. Show instrumentation and piping schematics. In addition, show thermal detector layout on sprinkler shop drawings, showing all thermal detector locations, conduit paths, conduit sizes and quantity of conductors. Drawings shall conform to the requirements of NFPA 13 for Working Plans. Hydraulic calculations shall conform to requirements of NFPA 13 for Hydraulic Calculation Forms. Drawings shall be sealed by a NICET (National Institute for Certification of Engineering Technologies) Level IV suppression systems technician or Licensed Professional Engineer.

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D. 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.

E. Welders Certification: Submit welder’s certification in accordance with ANSI B31.1, Chapter V.

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

G. Piping Hanger Schedule: Submit schedule showing location and details of pipe supports, including seismic bracing for Seismic Design Category D.

H. Documentation of NICET Level IV certification as a sprinkler designer or registration as a Licensed Professional Engineer for the designer.

I. 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.

J. Test reports and certificates as described in NFPA 13 and Part 3 of this Section. Include "Contractor's Material & Test Certificate for Aboveground Piping".

K. Record Drawings: Contractor shall provide one set of Record Drawings immediately upon completion of sprinkler system installation as part of Operating and Maintenance Manuals.

Include layout of piping mains and branches, instrumentations, valves, sprinklers, and other components.

1.8 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.

C. Sprinkler system design and calculations shall be prepared by a NICET (National Institute for Certification of Engineering Technologies) Level IV technician, or a Licensed Professional Engineer.

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

E. 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.

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F. 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.

1.9 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 solenoid valves in the normal position in the trim lines. Should a thermal detector actuate, the break contact circuit action energizes and alters 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 thermal 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 stop the flow of water 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.

1.10 COORDINATION

A. Coordinate layout and installation of sprinklers with other construction that penetrates ceilings, including light fixtures, HVAC equipment, and partition assemblies.

1.11 EXTRA MATERIALS

A. Materials are existing to remain. Only pipe, sprinklers, detectors, conduit and wire may be needed. Furnish extra materials as needed.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturers offering products meeting the requirements of this specification and that are listed by UL or approved FM Global shall be used.

2.2 MATERIALS

A. Materials: Materials and equipment 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

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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. Thermal Detectors: On/off system thermal 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. Electrical rating shall be 125 VAC, 4 amps.

1. Known Acceptable Source: Viking Model C.

C. Thermal Detector Cable: 2 hour CI, 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: Viking Detector PLFA-FPL Cable.

D. 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 shall be quick response.

Sprinklers shall be provided with oversize rings when penetrating a suspended ceiling.

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.

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

2.3 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 with screwed fittings 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. For dry and pre-action system piping shall be schedule 40 black steel, ASTM A53. Pipe 2 inches and smaller shall be threaded with screwed fittings. Pipe 2-1/2 inches and greater may be roll-grooved.

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C. 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. Grooved couplings shall be flush seal type.

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.

2.4 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 and UL, and be approved and acceptable to the COR for use in this type of installation.

2.5 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.

2.6 SPRINKLER SPECIALTY PIPE FITTINGS

A. Branch Outlet Fittings:

1. Standard: UL 213.

2. Pressure Rating: 175 psig minimum.

3. Body Material: Ductile-iron housing with EPDM seals and bolts and nuts.

4. Type: Mechanical-T and -cross fittings.

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5. Configurations: Snap-on and strapless, ductile-iron housing with branch outlets.

6. Size: Of dimension to fit onto sprinkler main and with outlet connections as required to match connected branch piping.

7. Branch Outlets: Grooved or threaded.

2.7 SPRINKLERS

A. General Requirements:

1. Standard: UL's "Fire Protection Equipment Directory" listing or "Approval Guide," published by FM Global, listing.

2. Pressure Rating for Automatic Sprinklers: 175 psig minimum.

B. Automatic Sprinklers with Heat-Responsive Element:

1. Nonresidential Applications: UL 199.

2. Characteristics: Nominal 1/2-inch orifice with Discharge Coefficient K of 5.6, and for

"Ordinary" temperature classification rating unless otherwise indicated or required by application.

C. Sprinkler types, features, and options as follows:

1. Quick-response sprinklers.

2. Sidewall sprinklers with chrome finish and matching thread on escutcheon.

3. Upright sprinklers with brass finish.

4. Sprinkler Guards: Wire-cage type, including fastening device for attaching to sprinkler where sprinklers are installed less than 7 feet above finished floor or where subject to mechanical damage.

2.8 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 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. Piping shall be sloped per NFPA 13 requirements for dry pipe systems. Exception for heated areas does not apply.

B. Install seismic restraints on piping if required by code. Comply with requirements for seismic-restraint device materials and installation in NFPA 13.

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

D. 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.

E. 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.

F. 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 FIRE WATCH

A. Assign and document a fire watch to perform functions as deemed appropriate, to include tasks and schedule. The fire watch shall inspect and mitigate any fire hazards in areas affected by, adjacent to, or throughout the facility as assigned. The fire watch assignment shall consider the nature/duration of the non-function of the sprinkler system, and thus may be a local collateral assignment or adjunct/contract staff specific for the purpose. Coordinate fire watch with COR.

B. Fire watch includes all or some of the following:

1. Fire department shall be notified of outage.

2. One approved means of notification of the fire department shall be provided.

3. The only duty of personnel assigned to the fire watch shall be to perform constant patrols of the area and keep watch for fires.

4. Responsible personnel shall oversee the implementation and effectiveness of the interim procedure(s).

5. Responsible personnel shall inspect and mitigate any fire ignition sources, to include hot-work such as welding, plug-in heater devices, overloaded extension cords, etc.

6. Responsible personnel shall inspect and mitigate any non-functioning fire protection or life safety system serving the area, such as the means of egress and fire barriers.

7. Responsible personnel shall inspect and mitigate any hazards to the means of egress/exits, such as obstructions to egress, rated doors are maintained closed else close upon a fire alarm condition, rated door hardware, exit illumination and signage, emergency lighting, etc. (refer to NFPA 101, Life Safety Code, for additional guidance).

8. Responsible personnel shall inspect and mitigate any hazards to the fire suppression/sprinkler system (refer to NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, for additional guidance) and provide additional fire extinguishers as deemed appropriate. Additionally, make fire extinguisher training information available.

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9. Responsible personnel shall inspect and mitigate any hazards to the barriers to include fire resistance rated construction, rated doors, hatches or dampers, and any incomplete firestopping around through penetrations.

10. Responsible personnel shall include oversight, duties, and staffing as deemed appropriate per NFPA 601, Standard for Security Services in Fire Loss Prevention.

11. Responsible personnel shall inform all facility occupants and visitors of the sprinkler system status (level and nature of outage) and discuss its effect on risks.

a. The information should highlight the purpose and importance of the sprinkler system, the impact on everyday operations, and the increased responsibility of all personnel during an outage.

b. Implement a procedure for notifying building occupants in the facility should an emergency occur and ensure personnel are aware of the procedures in effect. This procedure could include pulling the nearest working fire alarm manual pull station, making announcements over the public address system, and/or a combination of actions.

c. Post signage throughout the facility to indicate the status of the sprinkler system and interim measures in effect.

d. Inform all personnel upon restoring the sprinkler system to reinstate the normal occupant emergency procedures and relieve the fire watch effort.

3.3 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, as listed in Section 3.1.A. 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 07 84 13 “Penetration Firestopping”.

F. Branch lines shall be pitched at least ½ inch per 10 feet and mains shall be pitched at least ¼ inch per 10 feet. If it is determined that auxiliary drains are required, they shall be piped back

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to a location approved by the COR. Piping shall be sloped per NFPA 13 requirements for dry pipe systems. Exception for heated areas does not apply.

3.4 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. Install quick response sprinklers.

3.5 TEST AND DRAIN CONNECTIONS

A. Test connections shall be provided and installed on sprinkler systems in accordance with NFPA 13 requirements for preaction 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 THERMAL DETECTORS

A. Thermal detectors: Thermal detectors and thermal detector wiring shall be installed in accordance with manufacturer recommendations and NFPA 72 requirements. Support detectors from building structure. Thermal 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 thermal 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: If existing wire length will not accommodate the relocation of detectors, new conductors must be run from the previous detector. Wiring shall be installed in accordance with NFPA 72 for Class B circuits and the manufacturers’ recommendations. Wire all thermal detectors in series. Splicing and/or T-Tapping are not allowed. Viking porcelain wire nuts are the only acceptable means of connecting wires. All wiring shall be installed in conduit.

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3.8 PAINTING

A. Painting of piping is specified in Section 09 91 23, “Interior Painting.” 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. A complete system acceptance test, including all detectors and cycling of system, is required.

C. Testing Equipment: Equipment, material, and labor for the tests shall be provided by the Contractor. If tests, or portion thereof, fail, the Contractor shall undertake repairs immediately and retest to the satisfaction of the COR.

D. 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.

E. 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, thermal detectors, alarm

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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.

3.11 COMMISSIONING

A. Starting Procedures: Follow manufacturer's written procedures.

B. Coordinate with fire alarm system tests. Operate systems as required.

3.12 WARRANTY

A. Include a service and parts guarantee of the system for a minimum period of one year and provide any services and equipment incidental to the proper performance of the system under warranty at no additional cost to the Government. Warranty service shall be available 24 hours, 7 days a week. Response to warranty requests shall be verbally responded to within one hour and on site response within four hours.

END OF SECTION 21 13 13