NIFC_300-JWH_Sprinkler_Replace_-_Spec.pdf

NIFC 300-JWH Fire Sprinkler Replace October 2021

PART 1 - GENERAL INFORMATION

A. SUMMARY: Work to be accomplished with this project will be at the 300-Jack Wilson

Headquarters (JWH) building located on the National Interagency Fire Center (NIFC) campus located at 3833 S. Development Ave in Boise, Idaho. The work will occur on the interior of the building. The scope of the project is to completely replace the Dry Fire Sprinkler riser, piping, and sprinkler heads from the fire riser room in the first floor ceiling space horizontal pipes and down pipes to the basement and distribution system in basement area. The work shall include replacement of the wet pipe riser and back flow preventer located within the first floor riser room. Connect all wet and dry systems to fire alarm and water supply as required by code.

B. GENERAL: Due to the critical nature of the systems in the areas indicated, and the concurrent occupancy of the buildings, close coordination with the Contracting Officer Representative (COR) is required for all phases of work.

C. ADMINISTRATION: Overall administration of this contract shall be by the Contracting Officer (CO). The CO will appoint a Contracting Officer Representative (COR) to manage the detailed activities of the contract.

D. GOVERNMENT OCCUPANCY: NIFC is a fully occupied and operational campus. Provide a minimum one week advanced notice to COR for any work that will impact normal Government operations. Keep IT equipment, Power, and access to Data Center available 24 hours a day, 7 days a week.

E. WARRANTY: The installation shall be covered by a one-year parts warranty and a one-year labor warranty.

F. SAFETY: NIFC is a fully occupied and operational campus; the contractor shall provide all required barriers for protection of personnel around all work areas. Contractor shall also provide equipment required for work overhead.

G. QUALITY ASSURANCE: Installation of all equipment shall conform to the International Fire Code adopted by State of Idaho and current NFPA Standards. All electrical equipment and materials shall be new within one year of manufacture. No used, rebuilt, refurbished, and/or re-manufactured materials shall be used.

H. CONTRACTORS PROPOSAL:

1. Provide a Price Proposal per the Bid Schedule in accordance with solicitation.

I. REFERENCES: The design and installation of all systems of fire protection shall conform to all requirements of applicable codes and publications herein defined:

1. International Building Code (2018).

2. International Fire Code (2018)

3. NFPA 13 (2019).

4. NFPA 25 (2019).

5. NFPA 72 (2019).

6. All State and local ordinances.

NIFC 300-JWH Fire Sprinkler Replace October 2021

7. Underwriters' Laboratories.

8. American Society of Testing Materials.

9. American National Standards Institute.

J. REGULATORY AGENCIES: The term jurisdictional authority used in this Section of the Specification shall include, as applicable, but not be limited to the following:

1. Bureau of Land Management.

2. Boise Fire Department

3. Idaho State Fire Marshal

K. SUBMITTALS POST AWARD:

1. Installer qualifications: Provide a copy a valid State of Idaho Fire Sprinkler Contractor's license. The Installer shall have been actively and successfully engaged in the installation of commercial automatic sprinkler systems for the past three years and shall have experience in the replacement of dry pipe sprinkler systems.

2. Materials and Equipment: All equipment and devices shall be of a make and type listed by UL, FM, or other nationally recognized testing laboratory for the specific purpose for which it is used.

a) Manufacturer's Data Sheets: Provide for materials and equipment proposed for use on the system. Include listing information and installation instructions in data sheets.

Where data sheet describes items in addition to that item being submitted, clearly identify proposed item on the sheet.

b) Partial Submittals will not be accepted. Material Submittals shall be approved prior to purchase or delivery to the job site. Suitably bind Submittals in notebooks or binders and provide index referencing the appropriate Specification Section.

Submittals shall include, but not be limited to, the following: All equipment and devices shall be of a make and type listed by UL, FM, or other nationally recognized testing laboratory for the specific purpose for which it is used.

c) Two (2) sets of full catalog information shall be submitted for approval for all materials intended for use on this Project (alternately, an electronic submittal to scale will be acceptable). Catalog information indicating more than one item shall be highlighted to clearly indicate the proposed equipment.

3. Working Plans:

a) The "Working plans" shall be submitted to the CO for approval and shall meet state of Idaho requirements. Working Plans shall be signed by a NICET Level III, Level IV Sprinkler Technician or a Registered Professional Engineer practicing in the field of Fire Protection Engineering. Working plans shall be prepared in Revit, or compatible software. As the Working Drawing and Calculation review is for technical adequacy only, the installer remains responsible for correcting any conflicts with other trades and building construction that arise during installation.

NIFC 300-JWH Fire Sprinkler Replace October 2021

b) Once the working plans have been reviewed and approved by the CO/COR, submit to State of Idaho Fire Marshal for review and approval.

c) After approvals from State Fire are returned to the Contractor, contractor shall submit two (2) sets of fire marshal approved plans to the CO/COR (alternately, an electronic submittal of to-scale Working Plans will be acceptable). Upon written approval of plans by COR, the contractor may proceed with the project.

4. General:

a) Hydraulic calculations: Submit calculations in accordance with NFPA 13 and with design information given on the preliminary working plans and in the specifications.

b) The CO/COR review will be for general location only. It will be the Contractor's responsibility to check all drawings for interferences and to do shop fabrication from measurements taken at the job site.

c) Work on the Project shall not begin until Plans have been reviewed by CO/COR.

Allow 10-days for Government review and response.

d) Re-submittals: A summary of submittal changes will be required for each re-submittal. This summary should briefly reiterate the original comment and give specific direction on how the issue was resolved. Changes made that are not a result of submittal review comments shall be clearly identified in this summary as well.

Allow seven (7) days for government review and response.

5. Record Drawings and Operation and Maintenance Manuals: Two (2) sets of operating and maintenance instructions shall be provided to the Government upon completion in printed format, and in electronic format. Manuals shall include, as a minimum, the following:

6. "As-Built" Drawings.

a) Revised hydraulic calculations based on "As-Built" Drawings.

b) Catalog cut sheets of all materials installed.

c) Equipment maintenance manuals.

d) Contractor's Material and Test Certificates.

e) Certification of Government Training.

f) Contractor Guarantee and Warranty.

g) "As-Built" AutoCAD drawing (.dwg) file or equal on CD disk.

L. KNOWN CONDITIONS

1. The building was constructed in 1992 and the fire sprinkler piping has been in place since that time.

2. Relocation of some sprinkler heads in the Operators Room was completed in September of 2021.

3. In September 2021, a small leak was detected on a length of main pipe downstream of the drop from the first floor. The leak was sufficient to discolor a ceiling tile. The leak was

NIFC 300-JWH Fire Sprinkler Replace October 2021 covered with an epoxy and fiberglass reinforced patch to maintain the system capability temporarily.

4. Pressure at the fire line entry point into the fire riser room prior to the backflow assembly is typically 48-50 psi.

M. JOB CONDITIONS

1. Original Construction Drawings including original Fire Protection Preliminary Plans and scanned original As-built plans are available and may be provided to the Contractor upon request. However, the drawings do not reflect the existing conditions due to various remodeling projects completed since the original construction and all measurements shall be verified in field by contractor.

2. The Contractor shall determine, and be responsible for, the proper locations and type of inserts for hangers, chases, sleeves, and other openings in the construction required for fire protection work, and shall obtain this information well in advance of the construction progress to avoid delay of the work.

3. All systems of fire protection shall be installed by a licensed (for the location of installation) Fire Protection Contractor, fully experienced in fire protection installation as specified herein.

4. Sprinkler pipe is installed above a suspended ceiling and anchored with non-penetrating fasteners to steel beams and with penetrating fasteners to a steel deck with concrete floor.

5. The ceiling consists of the following types:

a) Suspended metal framing with taped drywall

b) Suspended metal framing with finished drywall

c) Suspended metal framing with taped drywall and glued acoustic tile

d) Suspended 2 foot by 4 foot ceiling grid with removable acoustic tiles

6. In the electrical room there is a steel deck with spray applied fireproofing and exposed sprinkler pipe.

N. RECORD DRAWINGS

1. One approved set of Working Plans shall be maintained on the job at all times. One set of "As-Built" Drawings shall be kept on the job at all times. "As-Built" Drawings shall be kept current daily. "As-Built" Drawings shall be available at all times to Contracting Officer for review and use.

2. One reproducible set of "As-Built" Drawings shall be provided to the Contracting Officer upon completion of the work.

O. TRAINING

1. The Fire Protection Contractor shall instruct the Government in the operation of the systems.

Instruction of up to 4 hours shall continue until the Government is fully satisfied and understands the operation of the system.

NIFC 300-JWH Fire Sprinkler Replace October 2021

2. Contractor shall obtain Government's dated signature that all training has been accomplished and is acceptable to the Government.

PART 2 – PRODUCTS

A. The Contractor shall provide all materials and supplies as required under the Buy American Act and as required for a complete installation of fully functional systems.

B. Wire: Plenum rated communication wire shall be used in all areas of building except when placed within EMT conduit.

C. EMT Conduit: Utilize EMT conduit where wiring would be exposed to the occupied area of the building.

D. Products under this Section shall include, but not be limited to the following:

1. Pipe and fittings.

2. Pipe hangers, hanger rods, inserts, and supports.

3. Earthquake bracing.

4. Valves.

5. Alarms.

6. Flow and Tamper Switches.

7. Specialties.

E. SPRINKLERS:

1. Acceptable Manufacturers as follows.

a) Tyco

b) Victaulic

c) Viking

d) Reliable

2. Install sprinklers from reviewed Working Plans.

3. All sprinklers shall be of similar design and from a single manufacturer.

4. The operating temperature of sprinklers shall be as required by the specific location of installation.

5. Extended coverage sprinklers shall not be used unless specified in the preliminary working plans.

6. Sprinklers shall conform to the requirements of NFPA 13, as indicated in the preliminary working plans, and as follows:

a) Brass upright or pendent may be used in all mechanical, storage or other non-public spaces.

b) Recessed shall be used in all finished areas, offices, etc. unless otherwise noted.

NIFC 300-JWH Fire Sprinkler Replace October 2021

c) Where surface mounted obstructions will not allow for recessed installation, two-piece escutcheons may be used to extend sprinklers to a maximum deflector distance as allowed by NFPA or U.L. listing with prior approval of the Contracting Officer.

d) Sidewall sprinklers may be used in accordance with listing and jurisdictional requirements.

e) All sprinklers shall be quick-response glass bulb type when applicable.

7. Dry pendent sprinklers shall be used in computer room, Communications equipment room, operators room, huddle room, UPS Room, and electrical room due to the existing sprinkler layout and equipment in the space.

8. Pendent sprinklers in mechanical rooms, electrical rooms, and janitor closets shall have sprinkler guards.

9. Escutcheons for seismic areas shall be oversized expansion plate type to allow 1 inch clearance.

F. FLEXIBLE SPRINKLER HOSE FITTINGS

1. Acceptable Manufacturers:

a) FlexHead Industries, Inc.

b) VicFlex Victaulic.

2. Flexible sprinkler hose fittings for use in commercial suspended and gypsum board ceilings may be used as a contractors' option to hard pipe arm-over and drops per NFPA and installed per the manufacturers' listing.

3. All flexible sprinkler hose fittings shall be UL listed and FM approved.

4. Provide flexible hose assemblies and end fittings with 100 percent Type 304 Stainless steel, with a 175 psi maximum rated pressure. Flexible hose assemblies shall be fully welded non mechanical fittings, braided, leak tested with minimum 1 inch true bore internal corrugated hose diameter.

5. Flexible hose assemblies shall have G90 galvanized steel ceiling bracket, direct attachment type, having integrated snap on clip ends positively attached to the ceiling using tamper resistant screws. Provide flexible hose attachment with removable hub type with set screw.

G. PIPE AND FITTINGS – INTERIOR

1. Interior piping for automatic sprinkler system shall conform to NFPA 13 and as follows:

2. Wet system sprinkler piping above ground with threaded fittings shall be Schedule 40 black steel pipe with a corrosion resistance rating equal to or greater than 1.0. Threaded thin wall pipe with a CRR less than 1.0 shall not be used.

3. Fittings for threaded and coupled pipe shall consist of cast iron, ductile iron, or malleable threaded fittings joined with Teflon tape thread sealing compound or pipe joint compound.

Pressure rating of fittings shall be as required for application.

4. Wet system sprinkler piping above ground with grooved fittings for sizes 2-1/2-inch and larger shall be roll grooved Schedule 10 black steel pipe with a corrosion resistance rating equal to or greater than 1.0

NIFC 300-JWH Fire Sprinkler Replace October 2021

5. Fittings for grooved end pipe shall consist of Tyco Grinnell Series ductile iron or equal ductile iron couplings and fittings in accordance with NFPA 13. Gaskets shall be as recommended by the manufacturer for the application.

6. Fittings for plain end pipe shall not be used.

7. Mechanical Outlet or Strap Outlet type fittings shall not be used in new system installations.

8. CPVC piping shall not be used.

9. Alternate piping systems approved by NFPA 13 may be allowed with prior approval of the Contracting Officer.

10. All piping shall be identified with pre-manufactured piping identification labels.

11. All drain piping and fittings shall be galvanized.

12. All Fire Department Connection piping and fittings up-stream of check valve shall be galvanized.

13. All wet system sprinkler pipe shall be supplied with a factory-applied antibacterial coating.

14. Antibacterial coating shall be proven to minimize the effects of Microbiologically Influenced Corrosion (MIC) and shall be compatible with all system components.

15. Pipe hangers, hanger rods, inserts, earthquake bracing, and seismic restraints to be constructed in accordance with the requirements of NFPA 13.

H. VALVES

1. Acceptable Manufacturers:

A) Mueller.

B) Kennedy.

C) Nibco.

D) Tyco.

E) AGF.

F) United Brass.

G) Victaulic.

H) Watts.

2. Gate valves shall be approved indicating type as required by NFPA 13. Check valves shall be as required by NFPA 13. Test and drain valves shall be approved brass globe, angle, or ball valves. Locate sprinkler system isolation valves as required per NFPA 13 complete with a tamper alarm switch.

3. Interior Gate:

A) Make: Nibco or equal.

B) Sizes: 2-1/2 inches, 3 inches, 4 inches, 6 inches and 8 inches.

C) Ends: Flanged.

NIFC 300-JWH Fire Sprinkler Replace October 2021

D) Model: F-607-OTS.

4. Interior Butterfly:

A) Make: Tyco or equal

B) Sizes: 2-1/2 inches through 10 inches.

C) Ends: Grooved.

D) Model: BFV-N

E) Note: Butterfly valves may be used in lieu of OS&Y valves at the Contractor's option for 2-1/2 inches and larger valves. Exception: Suction side of Fire Pumps shall be OS&Y valves.

5. Interior Butterfly (Normally Closed):

A) Make: Victaulic or equal

B) Sizes: 2 inches through 8 inches.

C) Ends: Grooved.

D) Model: FireLock 707C

6. Ball Valve:

A) Make: Watts or equal

B) Sizes: 1/4-inch to 2 inches.

C) Ends: Threaded.

D) Model: WBV

7. Check Valves:

A) Make: Tyco or equal

B) Sizes: 2-1/2 inches, 3 inches, 4 inches and 6 inches.

C) Ends: Grooved.

D) Model: CV-1F.

I. DRAIN VALVES INTERIOR:

1. Make: United Brass or equal

2. Sizes: 1/2-inch through 2 inches.

3. Ends: Threaded.

4. Model: 125 SUL

J. TEST AND DRAIN:

1. Make: AGF or equal

2. Sizes: 1 inch through 2 inches.

3. Ends: Threaded.

NIFC 300-JWH Fire Sprinkler Replace October 2021

4. Model: 1011, 1000, and 1011T.

K. BACKFLOW PREVENTION DEVICES

1. Acceptable Manufacturers:

A) Febco.

B) Ames.

C) Watts.

2. Devices shall be UL or FM approved.

3. Hydraulic flow rate shall fall below the UL Tested flow rate of the device.

L. SPECIALTIES

1. Fire Seals: Where piping passes through walls, floors, or other building construction which by code requires a fire rating, approved fire rated assemblies shall be used. Proposed protection shall be submitted for approval. Plans shall clearly indicate details and locations of required protection.

2. Escutcheon Plates:

A) Where exposed piping passes through finish work, chrome plated wall plates or other wall plate finishes acceptable to the Contracting Officer, shall be installed. All wall plates shall be metal.

B) Split wall plates or escutcheons shall only be used in remodel projects. Split wall plates or escutcheons shall be installed to fit snugly around piping. All wall plates shall be metal.

C) Solid galvanized wall plates shall be used at both sides of all exterior walls.

3. Valve Identification:

A) All valves within the building shall have permanently marked identification signs provided in accordance with NFPA 13 standards. Signs shall be manufactured and not handwritten. Signs shall be hung with galvanized or chrome chain.

4. Spare Sprinkler Supply:

A) Furnish and install a supply of extra sprinklers of each type and degree link installed in the project, complete with a cabinet mounted in the fire alarm riser room. Provide wrenches for each type of sprinkler placed in the cabinet. Provide a list of all sprinklers installed throughout the property in the spare sprinkler cabinet as required by NFPA 13.

5. Piping Identification:

A) All piping shall be identified at 40' maximum spacing and a minimum of one identification label per room. Labels shall be Seton wrap around style or equal.

M. RISER MANIFOLD

1. Acceptable Manufacturers:

A) Tyco

NIFC 300-JWH Fire Sprinkler Replace October 2021

B) Viking

C) Reliable

2. Riser manifold compliant with NFPA 13, including the following components:

A) Check valves

B) Water indicator

C) Tees and elbows

D) Supports

E) Drains

F) Flow test outlet

G) Outside Screw & Yoke valve

H) Tamper switch

I) Double check valve assembly

J) Pressure switch

K) Bypass valve

L) Duplex air compressor assembly approved for Dry Sprinkler Systems with electronic automatic drain valve

M) Air filter and drier

N) Wet system control valve

O) Dry system double interlocked control valve

3. Complete with necessary integral test and drain valve with test orifice, and pressure relief valve. Assembly shall have an integral flow switch with contacts for wiring to the fire alarm system.

4. The manifold shall be ductile iron and finished in corrosion resistant red paint.

5. The manifold shall be UL listed and FM approved.

N. ELECTRICAL DEVICES

1. Tamper Switch:

A) Potter OSYSU-2.

B) Potter PCVS-2.

c) Potter RBVS.

d) Or Approved Equal

2. Flow Switch:

A) Potter VSR.

B) Potter VSR-S.

NIFC 300-JWH Fire Sprinkler Replace October 2021

c) Or Approved Equal

PART 3 - EXECUTION

A. GENERAL

1. The Contractor shall investigate the structural, mechanical, electrical, and finished conditions affecting the piping, and shall arrange the equipment accordingly, furnish required fittings, offsets and accessories. Route fire protection piping to avoid interference with duct work and drain piping. In the event it becomes necessary to make field changes in pipe locations due to building construction, the Contractor shall consult with the Contracting Officer before making any changes. Any such changes required shall be made without added cost to Government.

2. Fire protection system shutdowns shall be coordinated and implemented by the Contractor as preplanned impairments per NFPA 25 Chapter 15 and its related Annexes. Where any fire protection system will be placed out of service for more than 10 hours in a 24-hour period, an approved fire watch shall be provided until the system is restored to normal working order.

Impairments shall be coordinated with the Government and other trades to minimize conflict and inconvenience.

3. Building Fire Alarm system shall only be deactivated for the area under construction and where devices have been removed due to construction. The rest of the building fire alarm system shall remain fully operational for the occupied building.

4. Contractor shall replace in-kind, or larger, the existing back flow preventer and wet -system fire riser. The contractor shall accomplish design as per NFPA standards for the dry-pipe pre-action fire riser and distribution system and install in accordance with NFPA.

B. DESIGN CRITERIA

1. Working Plan Information: Provide working plans, calculations, materials, equipment, installation, inspection, and testing of the automatic sprinkler system in accordance with the requirements of NFPA 13 and the following:

a) Recommendations in annexes shall be treated as requirements.

b) Sprinkler Protection: To determine spacing and sizing, apply the following coverage classifications: Light Hazard or greater hazard as required by NFPA standards.

c) Request clarification from any hazard classification not identified.

d) Perform hydraulic calculations in accordance with NFPA 13 utilizing the Area/Density method. Provide a hydraulic placard for each zone, occupancy hazard, and each floor of the building minimum.

e) Quick response sprinkler reductions are not allowed

f) If used flexible sprinkler assemblies shall be included in hydraulic calculations using the UL listing equivalent length of Schedule 40, nominal 1 inch diameter pipe, with a minimum of three (3) bends.

g) Hydraulic calculated demand including hose stream requirements shall fall no less than 10 psi below the available water supply curve.

NIFC 300-JWH Fire Sprinkler Replace October 2021

h) Velocities shall not exceed 20 feet per second in any pipe.

2. The provided layout of the existing piping is approximate only and indicates probable location of sprinkler heads and possible routing of existing piping. Contractor to verify actual locations and layout of existing system. Final spacing and layout shall be based on the working plan adhering to current requirements and is the responsibility of the contractor.

3. The fire protection system contractor shall design the piping to supply the system. Piping shall be laid out so as not to interfere with the installation of other piping, ductwork, light fixtures, or equipment. Contractor shall temporarily relocate piping, ductwork, light fixtures, fire alarm fixtures, or equipment where those items interfere with removal and installation of the ceiling and sprinkler piping.

4. The entire sprinkler system is not shown on the preliminary existing layout. The intent is to provide complete sprinkler systems as required by NFPA standards. This Contractor shall be responsible for surveying the site, existing construction, new construction, and the complete contract document set and prepare Working Plans for the total system.

5. All piping shall be run concealed wherever possible. Where piping is run exposed, special notation on Contractor's Working Plans to that effect shall be evident and conspicuous on the Working Plans. Piping shall be exposed in the Electrical room. Any piping determined to be a problem shall be relocated at no cost to the Government.

6. System piping to be hydraulically calculated in accordance with NFPA 13 Chapter 27 (2019).

C. DEMOLITION

1. General: Document location of all ceiling mounted devices.

2. Remove lighting, fire alarm devices, conduits, ceiling mounted wire racks/trays, and other appurtenances as necessary to remove room ceilings in preparation to replace fire suppression systems. Do not deactivate fire suppression systems until necessary.

Demolish all components for dry pipe fire sprinkler system.

3. Set aside and protect acoustic tiles, light fixtures, HVAC registers and grilles, fire alarm conduit, wiring, and components, cable trays, and other items attached to the ceiling to access sprinkler pipe. Reinstall the items when the ceiling work and testing is complete.

4. Place tents over IT equipment to maintain airflow and prevent dust from accumulating on the equipment. Equipment that is mobile on wheels and not limited by connection length may be temporarily moved within the room.

5. Protect modular furniture surfaces from damage.

6. Remove ceiling framing, drywall, removable and adhered acoustic tiles completely from the rooms where the dry piping and riser are located, to access the sprinkler pipe and install new pipe. Remove ceiling grid where needed.

7. Ceiling may be removed in full or in sections as long as the ceiling is finished and restored to a finished condition upon installation of the new piping

8. Drain system prior to removal of sprinkler piping. Provide water protection for all surfaces and temporary drain hoses, containers, and other material to ensure no water, stains, or rust accumulates on surfaces.

NIFC 300-JWH Fire Sprinkler Replace October 2021

9. Demolish all components for dry pipe fire sprinkler system, including pipe, tees, elbows, connectors, sprinklers, risers, and valves. Remove all hangars and supports not used for new installation.

10. In room 140, demolish wet fire sprinkler riser components, including backflow preventer, pipe, tees, elbows, connectors, risers, sprinklers, and valves. Demolish wet fire sprinkler line to just beyond wall separating room 143 and 140. The wet fire sprinkler beyond the wall separating room 143 and 140 shall remain. Return air compressors to government.

11. Provide recyclable material and trash receptacles and dumpsters for demolition purposes and dispose of material offsite.

D. INSTALLATION

1. Installation of fire sprinkler systems shall be accomplished by the licensed Contractor.

Provide a qualified technician, experienced in the installation and operation of the type of system being installed, to supervise the installation and testing of the system.

2. Conditions

a) In the riser room reconnect above grade to the drop to the exterior Fire Department Connection.

b) Post Indicator Valve to remain

3. Furnish and install sprinkler system with the following components:

a) New wet riser system and dry riser system with products indicated in Part 2.

b) Connect new devices to existing Fire Alarm controls mounted in the Fire Riser Room and Operators Room. Existing Fire Alarm Panel and Fire Alarm system to remain and be restored to an operating condition with no active alarms. Replace Fire Alarm components where indicated in this scope.

c) Systems shall be equipped with a supervised isolation valve and an approved flow alarm connected to the building fire alarm system.

d) A main drain shall be installed on each riser or sectional zone control valve within the riser room and shall drain to the exterior or to an adequate drain connection on a splash block.

e) Auxiliary drains shall be provided when a change in piping direction prevents drainage of sections of branch lines or mains through the main drain valve. An auxiliary drain shall be installed on the dry system that drains to the mop sink in the Janitor’s room in the basement. The auxiliary drain shall have a globe valve with a padlock and shall be capped airtight.

f) A test pipe of not less than 1 inch diameter terminating in an orifice equivalent to one sprinkler shall be provided for each system or sectional zone.

4. Delivery, storage, and handling of materials to and on the construction site shall be consistent with good practices, manufacturers' requirements, and the following procedures. Components shall be protected from moisture, dirt, and debris. Storage shall be elevated above grade and protected from damage. Provide adequate ventilation to prevent condensation. Deliver piping and valves with protective caps installed; if removal of protection is required for inspection, NIFC 300-JWH Fire Sprinkler Replace October 2021 reinstall for storage. Store piping in a manner to prevent sagging or bending. Any deficiencies discovered in the delivery, storage, or handling of materials shall be recorded and remedied immediately in such a way as to minimize damage and preserve the integrity of the system and components.

5. Installation of Piping:

a) Ensure the ends of all sprinkler system pipes are smooth and free of any burrs or fins.

To help reduce the potential for accelerated internal pipe corrosion of longitudinally welded black steel pipe, install such pipe with the weld line rotated at least 45 degrees in relationship to the floor (for reference, the weld line points at the floor at 0 degree).

b) Accurately cut pipe to measurements established by the installer and work into place without springing or forcing. In any situations where bending of the pipe is required, use a standard pipe-bending template.

c) Steel-Piping, Cut-Grooved Joints: Cut square-edge groove in end of pipe according to AWWA C606. Assemble coupling with housing, gasket, lubricant, and bolts. Join steel pipe and grooved-end fittings according to AWWA C606 for steel-pipe joints.

d) Install concealed piping in spaces that have finished ceilings. Pipe installed near equipment shall not block or encroach on equipment access or impede maintenance.

Where ceiling mounted equipment exists, install sprinklers so as not to obstruct the movement or operation of the equipment or block access.

e) Install flanges, flange adapters, or couplings for grooved-end piping on valves, apparatus, and equipment having NPS 2-1/2 inches and larger end connections.

f) Flanged Joints: Select appropriate gasket material in size, type, and thickness suitable for water service. Join flanges with gasket and bolts according to ASME B31.9.

g) Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1.

Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows:

(1) Apply appropriate tape or thread compound to external pipe threads.

(2) Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged.

h) Dissimilar-Material Piping Joints: Make joints using adapters compatible with materials of both piping systems.

i) Space pipe hangers in accordance with the requirements of NFPA 13. Construct hangers, hanger rods, inserts and clamps as approved by the same.

j) Install all earthquake bracing as required by NFPA 13, Authority Having Jurisdiction, Government's insurer. Use Seismic Coefficient (Cp) force factor requirements per IBC for the location.

k) Install seismic restraints on piping. Comply with NFPA 13 requirements for seismic restraint device materials and installation.

6. Installation of Valves:

a) Install unions adjacent to each valve in pipes NPS 2 inches and smaller.

NIFC 300-JWH Fire Sprinkler Replace October 2021

b) Install valves having threaded connections with unions at each piece of equipment arranged to allow easy access, service, maintenance, and equipment removal without system shutdown. Provide separate support where necessary.

c) Install valves in horizontal piping with stem at or above the pipe center.

d) Install valves in position to allow full stem movement.

e) Install ceiling access panel where valve will be covered by non-removable ceiling tiles.

7. Install new backflow prevention devices as required by the Water Authority Having Jurisdiction.

8. Welding: Conform to the requirements and recommendations of NFPA 13.

9. Drains: Pipe drains to discharge at safe points outside of the building, or for auxiliary drains, to mop sinks. Locations of drains shall be indicated on shop and as-built drawings. A map of all drain locations shall be permanently affixed to a visible location near the fire riser to aid in their identification.

10. Waterflow Alarm Switches: Install waterflow switch and adjacent valves in easily accessible locations.

11. Inspector's Test Connection: Install and supply in conformance with NFPA 13, locate in a secured area, and discharge to the exterior of the building.

12. Affix cutout disks, which are created by cutting holes in the walls of pipe for flow switches and non-threaded pipe connections to the respective waterflow switch or pipe connection near to the pipe where they were cut.

13. Sleeves: Provide for pipes passing through masonry or concrete Schedule 10 pipe. Provide space between the pipe and the sleeve in accordance with NFPA 13. Seal this space with a UL Listed through penetration fire stop material per UL assembly listings.

14. Seals: Seal all interior fire rated wall penetrations with fire caulk. Seal all exterior wall penetrations with fire calk or foam insulation and silicone sealing to maintain the fire rating and thermal/moisture integrity of the wall system.

15. Provide pressure gauge at each water flow alarm switch location, riser or feed main, at each sprinkler test connection at the top of each standpipe, at the inlet side of all backflow assemblies, and at each main drain connection. Include pressure gages with connection not less than NPS 1/4-inch and with soft-metal seated globe valve, arranged for draining pipe between gage and valve. Install gages to permit removal where they are not subject to freezing.

16. Provide a pressure relief valve at each system riser or zone riser as required.

17. Securely attach identification signs and tags to control valves, drain valves, and test valves.

Locate hydraulic placard information signs at each sectional control valve where there is a zone water flow switch. A map of any isolation valves installed in the building at locations other than on the fire riser in the riser room shall be permanently affixed to a visible location near the fire riser to aid in their identification.

NIFC 300-JWH Fire Sprinkler Replace October 2021

18. Repair damage to the building or equipment resulting from the installation of the sprinkler system by the installer at no additional expense to the Government.

19. Where details of installation are not given, the installation shall be made using manufacturer's recommended practices or at the direction of the Contracting Officer.

20. This Contractor shall complete the fire protection systems ready for operation, in all respects, as soon as possible. When system is complete and ready for continuous operation, activate the system for its intended use.

21. This Contractor shall remove from the building all rubbish and unused materials due to or connected with this installation. This contractor is responsible for proper removal and disposal of all demolition items, as indicated on the plans or no longer required for a complete operational system. A log of materials with weights of recycled and landfill items shall be provided to the Contracting Officer.

22. All piping and components shall be cleaned and in good condition and free of damage, leakage, and corrosion. All rooms where work was done to be cleaned to restore to normal operation.

E. Installation of Ceiling, Fire Alarm devices, conduits, lighting, and other removed appurtenances

1. Where the ceiling has been fully or partially demolished, restore the ceiling to a finished condition equal to the ceiling condition before construction.

2. The following ceiling assemblies as called out on Attachment A1 Area of Work shall be restored as follows:

a) “Gypsum” (Suspended metal framing with taped drywall): Support grid installed, drywall fastened with drywall screws, drywall taped and finished to match adjacent ceiling.

b) “Hard lid” (Suspended metal framing with finished drywall): Support grid installed, drywall fastened with drywall screws, taped, textured, and painted to match the adjacent surfaces

c) “Glued acoustic” (Suspended metal framing with taped drywall and glued acoustic tile): Support grid installed, drywall fastened with drywall screws, drywall taped, and ceiling tiles adhered to the ceiling to match adjacent tiles.

d) “T-Bar” (Suspended 2 foot by 4 foot ceiling grid with removable acoustic tiles):

Support grid installed, removable ceiling tiles installed to match the adjacent tiles.

Damaged removable ceiling tiles replaced with new ceiling tiles.

e) Restore fire and/or smoke rating to fire separation walls and ceilings

f) Hallways with a smoke separation have a gypsum ceiling and a T-Bar ceiling grid installed. Both ceiling types will need to be restored after replacing the dry sprinkler pipe.

3. Where components above the ceiling interfere with the routing of the sprinkler piping, remove and reinstall components as needed to access the sprinkler piping.

4. Reinstall junction boxes, conduits, fire alarm devices, and lighting to the ceiling. Support and comply with NFPA 70.

NIFC 300-JWH Fire Sprinkler Replace October 2021

5. Comply with NECA 1 and NECA 101 for application of hangars and supports for electrical systems.

6. Test all reinstalled fire alarm devices and lighting fixtures for proper operation.

F. TESTING

1. This Contractor shall call for inspection and complete Contractor's Material and Test Certificates for Aboveground Piping per NFPA 13 Chapter 28 (2019) "Systems Acceptance" and Contractor's Material and Test Certificate for Underground Piping per NFPA 13 Chapter 6 (2019). The Forms shall be signed by the Authority Having Jurisdiction.

2. The backflow device shall be forward flow tested per NFPA 13 Chapter 28 (2019) "Systems Acceptance".

3. The entire sprinkler system shall be hydrostatically tested at not less than 200 psig pressure for a period of not less than two (2) hours with no pressure drop in the system.

4. All testing shall be witnessed by the COR or Contracting Officer.

5. Where jurisdictional authority's or NFPA 13 standards are more stringent than the above test, they shall prevail.

G. DELIVERABLES AND SCHEDULE:

1. Within the 10 days prior to project close, provide the following via email to the (COR) in electronic (pdf) format and two (2) hard copies:

a) Operations and Maintenance Manual

b) As-built drawing

c) Warranty

2. Submit a written report identifying existing components that are deficient or are not fully operational that could not be fixed remotely during the installation, with recommended corrective actions and cost to investigate and/or correct. Report shall be submitted via email within 10 business days of project close.