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HAMP 326087: Preserve Historic Structures Hampto Federal contract opportunity
Solicitation number
140P2025R0043
Issued by
Department of the Interior National Park Service National Office

About this file

This file is a comprehensive technical specification document for a preservation construction project at Hampton National Historic Site in Towson, Maryland, prepared by the National Park Service Denver Service Center. The project involves preserving historic structures and encompasses multiple technical specification volumes detailing requirements for various construction and renovation activities. The specifications cover an extensive range of technical disciplines including demolition, concrete, masonry, metals, wood, thermal and moisture protection, openings, finishes, electrical systems, fire suppression, plumbing, HVAC, and site improvements.

Key technical specifications include detailed requirements for materials, installation methods, testing protocols, and quality control for systems such as electric boilers, split-system air conditioners, metal ducts, piping, insulation, fans, and specialized historic preservation treatments. The document is dated 05/29/2024 and is structured with precise technical guidelines for contractors, including performance standards, material specifications, installation procedures, and compliance requirements. The project appears to be a Competitive 8(a) set-aside construction project focusing on comprehensive preservation and systems upgrades for the historic site, with meticulous attention to maintaining the site's historic integrity while implementing modern mechanical and electrical systems.

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HAMPTON NATIONAL HISTORIC SITE

TOWSON, MARYLAND

PRESERVE HISTORIC STRUCTURES

HAMP

326087

PROJECT SPECIFICATIONS

VOLUME 2

NATIONAL PARK SERVICE (NPS)

DENVER SERVICE CENTER (DSC)

05/29/2024

SEAL:

ST

ATE OF MARYLANDJA

MES R. LONG

PROFESS I ONA L ENG I NEERREG I S T ERED

NO . 16 0 3 9

05/29/2024

HAMP- 326087 00 01 10 - 1

TABLE OF CONTENTS

TABLE OF CONTENTS

VOLUME 1 OF 2

PROCUREMENT AND CONTRACTING REQUIREMENTS

DIVISION 00 -- PROCUREMENT AND CONTRACTING REQUIREMENTS

00 01 10 - TABLE OF CONTENTS

SPECIFICATIONS

DIVISION 01 -- GENERAL REQUIREMENTS

01 10 00 - SUMMARY OF WORK

01 26 01 - CONTRACT MODIFICATION PROCEDURES

01 27 00 - DEFINITION OF CONTRACT LINE ITEMS

01 31 00 - PROJECT MANAGEMENT AND COORDINATION

01 32 16 - CONSTRUCTION SCHEDULE

01 32 33 - PHOTO DOCUMENTATION

01 33 23 - SUBMITTAL PROCEDURES

01 35 13.22 - ARCHEOLOGICAL PROTECTION

01 35 23 - SAFETY REQUIREMENTS

01 35 25 - EXPLOSIVES

01 35 91 - HISTORIC PRESERVATION TREATMENT PROCEDURES

01 40 00 - QUALITY REQUIREMENTS

01 42 00 - REFERENCE STANDARDS

01 50 00 - TEMPORARY FACILITIES AND CONTROLS

01 56 39 - TEMPORARY TREE PROTECTION

01 57 19.11 - INDOOR AIR QUALITY MANAGEMENT

01 57 19.12 - NOISE AND ACOUSTICS MANAGEMENT

01 57 23 - TEMPORARY STORM WATER POLLUTION PREVENTION

01 67 00 - PRODUCT REQUIREMENTS

01 73 29 - CUTTING AND PATCHING

01 73 40 - EXECUTION

01 74 19 - CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

01 77 00 - CLOSEOUT PROCEDURES

01 78 23 - OPERATION AND MAINTENANCE DATA

01 79 00 - DEMONSTRATION AND TRAINING

01 81 13 - SUSTAINABLE DESIGN REQUIREMENTS

01 90 00 - ACCEPTANCE OF WORK

01 91 14 - TOTAL BUILDING COMMISSIONING

DIVISION 02 -- EXISTING CONDITIONS

02 41 00 - SELECTIVE DEMOLITION

02 41 13 - SELECTIVE SITE DEMOLITION AND REMOVALS

02 81 00 - TRANSPORTATION AND DISPOSAL OF HAZARDOUS MATERIALS

02 82 00 - ASBESTOS REMEDIATION

02 82 13 - ASBESTOS ABATEMENT

02 82 16 - ENGINEERING CONTROL OF ASBESTOS CONTAINING MATERIALS

02 82 33 - REMOVAL AND DISPOSAL OF ASBESTOS CONTAINING MATERIALS

02 83 13 - LEAD HAZARD CONTROL ACTIVITIES

HAMP- 326087 00 01 10 - 2

02 83 33 - LEAD-BASED PAINT REMOVAL AND DISPOSAL

DIVISION 03 -- CONCRETE

03 30 00 - CAST-IN-PLACE CONCRETE

03 30 53 - MISCELLANEOUS CAST-IN-PLACE CONCRETE

03 35 11 - CONCRETE FLOOR FINISHES

DIVISION 04 -- MASONRY

04 05 13.10 - RESTORATION MORTARS

04 05 13.91 - MASONRY POINTING

04 20 00 - UNIT MASONRY

DIVISION 05 -- METALS

05 12 00 - STRUCTURAL STEEL FRAMING

05 12 13 - ARCHITECTURALLY-EXPOSED STRUCTURAL STEEL FRAMING

05 52 13 - PIPE AND TUBE RAILINGS

DIVISION 06 -- WOOD, PLASTICS, AND COMPOSITES

06 03 12 - HISTORIC WOOD REPAIR

06 10 00 - ROUGH CARPENTRY

06 16 00 - SHEATHING

06 20 00 - FINISH CARPENTRY

DIVISION 07 -- THERMAL AND MOISTURE PROTECTION

07 13 00 - SHEET WATERPROOFING

07 14 00 - FLUID-APPLIED WATERPROOFING

07 21 00 - THERMAL INSULATION

07 31 29 - WOOD SHINGLES AND SHAKES

07 46 23 - WOOD CLAPB SIDING

07 56 00 - FLUID-APPLIED ROOFING

07 61 00 - SHEET METAL ROOFING

07 62 00 - SHEET METAL FLASHING AND TRIM

07 92 00 - JOINT SEALANTS

07 92 01 - EXTERIOR JOINT SEALANTS - SITEWORK

DIVISION 08 -- OPENINGS

08 03 52 - HISTORIC TREATMENT OF WOOD WINDOWS

08 11 13 - HOLLOW METAL DOORS AND FRAMES

08 14 33 - STILE AND RAIL WOOD DOORS

08 31 00 - ACCESS DOORS AND PANELS

08 71 00 - DOOR HARDWARE

08 80 00 - GLAZING

08 91 00 - LOUVERS

DIVISION 09 -- FINISHES

09 01 10.15 - PAINT AND COATING REMOVAL

09 01 24.91 - STUCCO RESTORATION

09 03 20 - HISTORIC TREATMENT OF PLASTER

09 21 16 - GYPSUM BOARD ASSEMBLIES

09 30 00 - TILING

09 65 00 - RESILIENT FLOORING

09 68 16 - SHEET CARPETING

HAMP- 326087 00 01 10 - 3

09 91 00 - PAINTING AND FINISHING

DIVISIONS 10 - SPECIALTIES

10 28 00 - TOILET, BATH, AND LAUNDRY ACCESSORIES

DIVISION 11 -- EQUIPMENT (NOT USED)

DIVISION 12 -- FURNISHINGS (NOT USED)

DIVISION 13 -- SPECIAL CONSTRUCTION

13 34 13 - GLAZED STRUCTURES

DIVISION 14 -- CONVEYING EQUIPMENT (NOT USED)

VOLUME 2 OF 2

DIVISION 21 -- FIRE SUPPRESSION

21 13 16 - DRY-PIPE SPRINKLER SYSTEMS

DIVISION 22 -- PLUMBING

22 05 00 - COMMON WORK RESULTS FOR PLUMBING

22 05 23 - GENERAL-DUTY VALVES FOR PLUMBING PIPING

22 05 29 - HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

22 05 53 - IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

22 05 93 - TESTING, ADJUSTING, AND BALANCING FOR PLUMBING

22 07 19 - PLUMBING PIPING INSULATION

22 0800 - COMMISSIONING OF PLUMBING & DOMESTIC HOT WATER

22 11 16 - DOMESTIC WATER PIPING

22 11 19 - DOMESTIC WATER PIPING SPECIALTIES

22 13 16 - SANITARY WASTE AND VENT PIPING

22 13 19 - SANITARY WASTE PIPING SPECIALTIES

22 13 19.13 - SANITARY DRAINS

22 14 14 - STORM DRAINAGE PIPING

22 14 23 - STORM DRAINAGE PIPING SPECIALTIES

22 14 29 - SUMP PUMPS

22 33 00 - ELECTRIC, DOMESTIC-WATER HEATERS

22 42 00 - COMMERCIAL PLUMBING FIXTURES

DIVISION 23 -- HEATING, VENTILATING, AND AIR-CONDITIONING (HVAC)

23 05 00 - COMMON WORK RESULTS FOR HVAC

23 05 23.12 - BALL VALVES FOR HVAC PIPING

23 05 23.14 - CHECK VALVES FOR HVAC PIPING

23 05 29 - HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

23 05 48 - VIBRATION CONTROLS FOR HVAC

23 05 53 - IDENTIFICATION FOR HVAC PIPING, DUCT AND EQUIPMENT

23 05 93 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 13 - DUCT INSULATION

23 07 19 - HVAC PIPING INSULATION

23 08 00 - COMMISSIONING OF HVAC & HVAC CONTROL SYSTEMS

23 11 23 - FACILITY NATURAL-GAS PIPING

23 21 13 - HYDRONIC PIPING

23 21 16 - HYDRONIC PIPING SPECIALTIES

HAMP- 326087 00 01 10 - 4

23 23 00 - REFRIGERANT PIPING

23 31 13 - METAL DUCTS

23 33 00 - AIR DUCT ACCESSORIES

23 34 13 - FANS

23 52 13 - ELECTRIC BOILERS

23 81 26 - SPLIT-SYSTEM AIR-CONDITIONERS

23 81 29 - VARIABLE REFRIGERANT FLOW HVAC SYSTEMS

23 82 39.16 - PROPELLER UNIT HEATERS

DIVISION 26 -- ELECTRICAL

26 00 50 - COMMON WORK RESULTS FOR ELECTRICAL

26 05 19 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

26 05 26 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

26 05 29 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

26 05 33 - RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

26 05 43 - UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL

SYSTEMS

26 05 44 - SLEEVES AND SLEEVE SEALS FOR ELECTRICAL RACEWAYS AND

CABLING

26 05 53 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

26 09 23 - LIGHTING CONTROL DEVICES

26 24 16 - PANELBOARDS

26 27 26 - WIRING DEVICES

26 28 13 - FUSES

26 28 16 - ENCLOSED SWITCHES AND CIRCUIT BREAKERS

26 43 13 - SURGE PROTECTION FOR LOW-VOLTAGE ELECTRICAL POWER

CIRCUITS

26 51 00 - LED INTERIOR LIGHTING

26 52 13 - EMERGENCY LIGHTING

DIVISION 27 -- COMMUNICATIONS

27 05 28 - PATHWAYS FOR COMMUNICATIONS SYSTEMS

DIVISION 28 -- ELECTRONIC SAFETY AND SECURITY

28 20 00 - VIDEO SURVEILLANCE

28 31 00 - INTRUSION DETECTION

28 31 11 - DIGITAL, ADDRESSABLE FIRE ALARM SYSTEMS

DIVISION 31 -- EARTHWORK

31 00 00 - EARTHWORK

31 10 00 - SITE CLEARING

31 11 00 - CLEARING AND GRUBBING

31 20 00 - EARTH MOVING

31 22 19 - FINISH GRADING

31 23 00 - SITE EXCAVING, BACKFILLING, AND COMPACTING

31 23 19 - DEWATERING

31 25 00 - EROSION AND SEDIMENTATION CONTROL

31 50 00 - EXCAVATION SUPPORT AND PROTECTION

31 60 00 - UNDERPINNING

HAMP- 326087 00 01 10 - 5

DIVISION 32 -- EXTERIOR IMPROVEMENTS

32 01 13.63 - CHIP SEAL

32 01 16.71 - COLD MILLING ASPHALT PAVING

32 01 17.61 - SEALING CRACKS IN ASPHALT PAVING

32 01 17.71 - PARTIAL DEPTH PATCHING OF ASPHALT PAVING

32 01 17.72 - FULL DEPTH PATCHING OF FLEXIBLE PAVING

32 11 00 - BASES COURSES

32 11 23 - AGGREGATE BASE COURSE

32 12 13.13 - ASPHALT TACK COAT

32 12 16.01 - MINOR ASPHALT PAVEMENT

32 12 16.13 - ASPHALT FOG SEAL AND BLOTTER

32 14 16 - BRICK PAVING

32 14 40 - STONE PAVING

32 15 42 - RIVER ROCK

32 15 43 - STONE FINES PAVING

32 17 23 - PAVEMENT MARKINGS

32 31 29 - WOOD FENCING AND GATE

32 91 19 - LANDSCAPE GRADING

32 91 19.13 - TOPSOIL PLACEMENT AND GRADING

32 92 00 - TURFS AND GRASSES

32 92 19 - SEEDING

32 93 00 - PLANTING

32 94 13 - LANDSCAPE EDGING

DIVISION 33 -- UTILITIES

33 01 30.73 - MANHOLE REHABILITATION

33 01 30.74 - SEWER REPAIRS

33 10 00 - WATER UTILITIES

33 34 00 - SANITARY UTILITY SEWERAGE PIPING SYSTEMS

33 39 00 - SANITARY UTILITY SEWERAGE STRUCTURES

33 40 00 - STORM DRAINAGE UTILITIES

33 40 20 - WARNING AND TRACER TAPE

33 46 00 - SUBDRAINAGE

DIVISION 34 -- TRANSPORTATION

34 01 00 - MAINTENANCE OF TRAFFIC

END OF SECTION 00 01 10

HAMP - 326087 21 13 16 - 1

DRY-PIPE SPRINKLER SYSTEMS

SECTION 21 13 16 – DRY-PIPE SPRINKLER SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Pipes, fittings, and specialties.

2. Fire-protection valves.

3. Sprinklers.

4. Alarm devices.

5. Pressure gages.

6. Fire department connection.

7. Backflow preventer

8. Other fire sprinkler related appurtenances.

B. Related Sections:

1. Division 1, Section "Submittal Procedures"

2. Division 1, Section “Alternates”

3. Division 7, Section "Firestopping"

4. Division 9, Section "Painting"

5. Division 28, Section “Digital Addressable Fire Alarm Systems”

1.3 DEFINITIONS

A. Standard-Pressure Sprinkler Piping: Dry-pipe sprinkler system piping designed to operate at working pressure 175 psig maximum.

B. Dry-Pipe Sprinkler System: Automatic sprinklers are attached to piping containing compressed nitrogen gas. Opening of sprinklers releases compressed nitrogen gas and permits water pressure to open dry-pipe valve. Water then flows into piping and discharges from sprinklers that are open.

C. CO: Contracting Officer.

D. FM: FM Global (Factory Mutual)

E. FPE: Fire Protection Engineer

F. Furnish: To supply the stated equipment or materials

G. Install: To set in position and connect or adjust for use

HAMP - 326087 21 13 16 - 2

H. NFPA: National Fire Protection Association

I. NICET: National Institute for Certification in Engineering Technologies

J. NPS: National Park Service (NPS is the AHJ for this work).

K. Provide: To furnish and install the stated equipment or materials

L. UL: Underwriters Laboratories.

1.4 SYSTEM DESCRIPTIONS

A. The design shall conform to NFPA 13 and the requirements specified herein. The design, equipment, materials, installation, workmanship, examination, inspection and testing shall be in strict accordance with NFPA 13, except as modified herein.

B. The system shall include all materials, accessories, and equipment inside and outside the building to provide a system complete and ready for use.

C. Design and provide each system giving full consideration to blind spaces, piping, electrical equipment, duct work and other construction and equipment in accordance with detailed drawings to be submitted for approval.

D. Equipment for fire protection service shall be UL listed or FM approved for use in wet pipe sprinkler systems.

E. In the NFPA publications referred to herein, the advisory provisions shall be considered mandatory, as though the word "shall" had been substituted for "should," wherever it appears.

1.5 PERFORMANCE REQUIREMENTS

A. Standard-Pressure Piping System Component: Listed for 175-psig minimum working pressure.

B. Clearance From Electrical Equipment: Piping and automatic sprinklers are prohibited directly over:

1. Electrical panels.

C. If installing pipe over electrical equipment is unavoidable, provide drip pans under piping to protect electrical equipment.

D. Location of Sprinkler Heads: Heads in relation to the ceiling and the spacing of sprinkler heads shall not exceed their listed area of coverage for the hazard. Uniformly space sprinklers on the branch piping. Locate sprinkler heads in a consistent pattern with ceiling grid, lights, and supply air diffusers. Sprinklers located in electrical equipment or telecom rooms shall be of concealed type or be provided with guards.

E. Hydraulic Calculations: Submit name of hydraulic program and comply with the following requirements:

HAMP - 326087 21 13 16 - 3

1. Sprinkler System Margin of Safety for Available Water Flow and Pressure: 10 percent, including losses through water-service piping, valves, and backflow preventers. Water supply shall be corrected for low gradient.

2. Sprinkler Occupancy Hazard Classifications: Per NFPA 13 and as identified on the drawings.

3. Minimum Density for Automatic-Sprinkler Piping Design:

a. Light-Hazard Occupancy: 0.10 gpm over 1950-sq. ft. area or the area contained within one building’s floor area.

b. Ordinary-Hazard, Group 1 Occupancy: 0.15 gpm over 1950-sq. ft. area or the area contained within one building’s floor area.

4. Maximum Protection Area per Sprinkler: Light Hazard (225 sq. ft.), Ordinary Hazard

(130 sq. ft.)

5. Total Combined Hose-Stream Demand Requirement: According to NFPA 13 unless otherwise indicated:

a. Light-Hazard Occupancies: 100 gpm for 30 minutes.

b. Ordinary-Hazard Occupancies: 250 gpm for 60 to 90 minutes.

6. Sprinkler Discharge Area: The sprinkler discharge area shall be the hydraulically most remote areas as defined in NFPA 13.

7. Minimum operating pressure of any sprinkler shall be according to NFPA 13 and appropriate UL listing or FM approval.

F. Dry-Pipe Systems:

1. For each dry-pipe sprinkler system, provide a nitrogen generation system for fail safe release of the system and to supervise the integrity of the piping under normal power conditions. When supervisory pressure in each system is reduced, a “low air” supervisory alarm shall be activated.

2. The nitrogen generation system shall provide a minimum of 98% nitrogen purity to the dry-pipe sprinkler systems.

3. The nitrogen purity of the nitrogen generation system shall be monitored and verified via a handheld portable or wall mounted stationary means.

4. Provide autopurge systems on each sprinkler system.

G. Water Supply Information

1. Fire-hydrant flow test shall be performed by the contractor to use for their hydraulic calculations. Contractor shall coordinate with the local water authority to schedule the fire-hydrant flow test.

HAMP - 326087 21 13 16 - 4

2. Fire-hydrant test shall be conducted no more than 12 months prior to the working plans submittal. Flow test shall be performed in accordance with NFPA 291 “Recommended

Practice for Fire Flow Testing and Marking of Hydrants.”

3. Available fire-hydrant flow test records indicate the following conditions:

a. Date: March 4, 2024

b. Performed by: Baltimore City DPW, B. Singh

c. Main Size: 8 inches

d. Outlet Diameter 2.5 inches

e. Location of Residual Fire Hydrant R: FH-St Francis Rd @ Gateshead Rd, Asset

No. 014588

f. Residual Hydrant R Elevation: 352.76 ft

g. Location of Flow Fire Hydrant F: FH-525 St Francis Rd, Asset No. 01478

h. Flow Hydrant F Elevation: 322.66 ft

i. Static Pressure at Residual Fire Hydrant R: 108 psi

j. Measured Flow at Flow Fire Hydrant F: 1382 gpm

k. Residual Pressure at Residual Fire Hydrant R: 98 psi

l. Pressure Drop to 20 psi at Residual Fire Hydrant R: 88 psi

m. Calculated Flow of Flow Hydrant F at 20 psi: 4472 gpm

H. Sprinkler system design shall be approved by AHJ.

1.6 SUBMITTALS

A. Partial submittals will not be acceptable. Any installation work performed prior to the approval of the submittal shall be at the Contractor’s own risk.

B. Before any work is commenced, submit manufacturer's data (with listing or approval), system calculations, water supply data, and complete sets of working drawings.

C. Manufacturers' Data: Annotate descriptive data to show the specific model, type and size of each item the Contractor proposes to furnish. Include data for proper installation of each system including:

1. Pipe, fittings, and mechanical couplings

2. Gate, butterfly and check valves

3. Backflow Preventer

4. Globe valves

5. Sprinkler heads

6. Pipe hangers and supports

7. Pressure and water flow switches

8. Tamper switches

9. Inspector's test station

10. Ball drip

11. Lubricating compound/PTFE tape.

12. Signs

13. Drip pans

14. Gauges

15. All other associated equipment

16. System installation and startup protocols

HAMP - 326087 21 13 16 - 5

17. Operating instructions (to be posted adjacent to each system)

D. Shop Drawings: Prepare working drawings on sheets not smaller than 24 in by 36 in, in accordance with the requirements for "Working Plans" as specified in NFPA 13. A scaled site plan, with the location and elevation of the water flow test, shall be provided on the drawings.

The drawings shall not be smaller than 24 in by 36 inch with title block similar to full size contract documents. The drawings shall be prepared with CAD based software.

1. Contractor shall prepare and submit a minimum of four (4) complete sets of detailed shop drawings indicating the proposed layout of equipment, mains, risers, hangers, pipes and sprinklers.

2. Drawings shall be drawn to scale, not less than 1/8-inch equals 1-foot, on sheets not smaller than 24 inches x 36 inches, in accordance with all requirements for "Working

Drawings (Plans)" as specified in NFPA 13.

3. Drawings shall comply with the “Plans and Calculations” chapter of NFPA 13 and contain all applicable information found therein.

4. Drawings shall be stamped/sealed by a registered fire protection engineer, or a certified

NICET Level III or IV Automatic Sprinkler Layout Technician.

5. Drawings shall show hydraulic reference points with hydraulically most remote areas clearly shown, and proof by example that area shown is in fact the hydraulically most remote.

E. Design Data:

1. Contractor shall submit for approval to the CO/COR calculations, and other information for the dry pipe sprinkler system, stamped/sealed and signed by professional fire protection engineer prior to beginning any work. Allow 10 working days for drawing plans to be reviewed and for recommendations to be made.

F. Product Data

1. Submit two (2) hard-copies and one (1) electronic complete sets of descriptive data

(manufacturer’s cut sheets) marked-up to show the specific model, type and size of each item proposed. Full descriptive data shall be submitted for all components essential to proper installation, including, but not limited to: sprinklers, pipe, fittings, gate valves, butterfly valves, check valves, backflow devices, hangers, flow switches, tamper switches, materials and other associated equipment.

2. Prepare and submit a minimum of two (2) hard-copies and one (1) electronic complete sets of hydraulic calculations.

G. Project Record Documents

1. Contractor shall prepare, on a daily basis, red-lined shop drawings to record as- built conditions. Submit completed red-line drawings to the CO/COR and the AHJ at project completion.

2. Prepare and submit two (2) hard-copies and one (1) electronic sets of record shop drawings, product data, and hydraulic calculations reflecting final as-built conditions at completion of project, but before final acceptance of the work. These documents shall be prepared in accordance with the requirements for the initial submittal. Freehand sketches or mark-up documents are not acceptable. Record drawings shall be on reproducible sepia.

H. As-Built (Record) Working Drawings: Provide and submit detailed “As-Built Drawings”. The drawings shall show the system as installed, including all deviations from both the project drawings and the approved shop drawings. The drawings shall also include all information as

HAMP - 326087 21 13 16 - 6

required by NFPA 13. Submit these drawings within two weeks after final acceptance test of the system.

1. Furnish two (2) hard-copies and one (1) electronic set of instruction manuals containing complete operation and maintenance instructions for the specific make and model of check valves, control valves, waterflow switches, valve supervisory switches, control panels, and other components supplied. Include maintenance data relative to components of the system, servicing requirements, inspection data, replacement part numbers and availability, and location and numbers of the service depot.

I. Operation and Maintenance Manuals: Furnish four (4) instruction manuals containing complete operation and maintenance instructions for the specific make and model of all check valves, water flow and tamper switches, backflow preventers, and other trim furnished. Serial numbers and ordering information shall be provided. Place one copy of each instruction manual in a flexible, oil-resistant protective binder and mount in an accessible location and in sight of each control valve. Furnish three additional copies of each instruction manual.

J. Contractor’s Material and Test Certificates

1. Upon completion of required testing the contractor shall submit completed and signed material and test certificates for aboveground, underground piping and backflow prevention devices certifying system meets or exceeds the specified requirements. The

Contractor shall use the following National Park Service forms:

a. Aboveground Piping Acceptance Test Form (Form AS-5)

b. Underground Piping Acceptance Test Form (Form AS-4)

c. Backflow Prevention Assembly Test Form (Form BF-1)

d. Fire Pump Acceptance Form (Form FP)

e. Fire Hydrant Acceptance & Flow Test Form (Form FH-1)

f. Fire Alarm Record of Completion and Acceptance Form (FA-2)

K. Final Acceptance Test

1. Contractor shall propose procedures for final acceptance test, no later than ten (10) days prior to the proposed start of the tests. Contractor shall submit final acceptance test procedures at the same time proposed final acceptance test date and time are submitted.

Notification shall include a copy of the Contractor’s Material and Test Certificates. The

AHJ or designee shall witness final acceptance testing.

1.7 QUALITY ASSURANCE

A. Submittal Requirements:

1. Shop Drawings: Shop drawings shall be prepared and signed by persons with at least one of the following qualifications:

a. NICET Certification Level III minimum sprinkler technician.

b. Registered Fire Protection Engineer.

c. As approved by the AHJ.

2. Installer: The installer shall be at least one of the following qualifications:

a. NICET Level II minimum sprinkler technician.

b. State or municipal certified/licensed sprinkler contractor.

c. As approved by the AHJ.

The installer shall be present (on-site) during any sprinkler system installation work.

HAMP - 326087 21 13 16 - 7

B. Welding Qualifications: Qualify procedures and operators according to ASME Boiler and

Pressure Vessel Code.

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

D. NFPA Standards: Sprinkler system equipment, specialties, accessories, installation, and testing shall comply with the following:

1. NFPA 13, "Installation of Sprinkler Systems."

2. NFPA 25, “Standard for the Inspection, Testing, and Maintenance of Water-Based Fire

Protection Systems”

3. NFPA 70, “National Electrical Code”

4. NFPA 72, “National Fire Alarm Code”

5. NFPA 291, “Fire Flow Testing and Marking of Hydrants”

E. Service Organization: The Contractor shall furnish, to the CO, evidence that there is an experienced and effective service organization, which carries a stock of repair parts for the system in order to readily effect repairs throughout the warranty period. Service organization shall respond within 4 hours of notification from the CO. Should the Contractor fail to comply with the service requirements of this section, the CO will then have the option to make the necessary repairs and back charge the Contractor without any loss of warranty or guarantee as provided by the contract documents.

1.8 DELIVERY STORAGE AND HANDLING

A. Deliver products to project site in original, unopened packages with intact and legible manufacturers’ labels identifying product and manufacturer, date of manufacture, and shelf life if applicable.

B. Store materials inside, under cover, above ground, and kept dry and protected from physical damage until ready for use. Remove from site and discard wet or damaged materials.

C. Automatic sprinklers must be kept in original packaging until they are installed. Loose carrying or storage is not permitted. Loose sprinklers shall be discarded immediately and replaced at

Contractor’s expense.

1.9 COORDINATION

A. Coordinate sprinkler layout with reflected ceiling plan and all ceiling mounted equipment, including diffusers, lights, security cameras, fire alarm devices, exit signs, and other devices.

B. Coordinate major equipment and piping layouts with other trades to avoid obstructions and excessive changes in direction for piping.

C. Sprinklers shall be located in the center of ceiling tile or center of half tile in all acoustical tile drop ceilings.

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1.10 EXTRA MATERIALS

A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Sprinkler Cabinets: Finished, wall-mounted, steel cabinet with hinged cover, and with space for minimum of six spare sprinklers plus sprinkler wrench. Include number of sprinklers required by NFPA 13 and sprinkler wrench. Include separate cabinet with sprinklers and wrench for each type of sprinkler used on Project.

B. Spare Parts Schedule

1. Contactor shall prepare and electronically submit Spare Parts Schedule for each different item of material and equipment specified. Data shall include:

a. Complete list of parts and supplies, with current unit prices and source of supply;

b. List of parts recommended by the manufacturer to be replaced periodically;

c. List of special tools and test equipment required for maintenance and testing of products supplied.

1.11 WARRANTY

A. The Contractor shall guarantee labor, materials, and equipment provided under this contract against defects for a period of one year after the date of final acceptance of this work by the

Owner.

B. Final acceptance includes, but is not limited to, the receipt and Owner approval of as-built drawings and operation and maintenance manuals.

PART 2 - PRODUCTS

2.1 GENERAL

A. All products shall be UL listed or FM approved for Fire Protection Service unless specifically allowed otherwise by this specification.

2.2 PIPING MATERIALS

A. Comply with requirements in "Piping Schedule" Article for applications of pipe, tube, and fitting materials, and for joining methods for specific services, service locations, and pipe sizes.

2.3 STEEL PIPE AND FITTINGS

A. Schedule 40, Black Steel Pipe: ASTM A 53/A 53M, Type E, Grade B. Pipe ends may be factory or field formed to match joining method.

B. Black Steel Pipe Nipples: ASTM A 733, made of ASTM A 53/A 53M, standard-weight, seamless steel pipe with threaded ends.

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C. Steel Couplings: ASTM A865, threaded.

D. Gray-Iron Threaded Fittings: ASME B16.4, Class 125, standard pattern.

E. Malleable- or Ductile-Iron Unions: UL listed.

F. Cast-Iron Flanges: ASME 16.1, Class 125.

G. Steel Flanges and Flanged Fittings: ASME B16.5, Class 150.

H. Steel Welding Fittings: ASTM A234/A234M and ASME B16.9.

I. Malleable Iron Fittings: ASTM B16.3, Class 150

J. Grooved-Joint, Steel-Pipe Appurtenances:

1. Pressure Rating: 175 psig (1200 kPa) minimum.

2. Grooved-End Fittings for Steel Piping: ASTM A47/A47M, malleable-iron casting or

ASTM A536, ductile-iron casting; with dimensions matching steel pipe.

3. Grooved-End-Pipe Couplings for Steel Piping: AWWA C606 rigid pattern, unless otherwise indicated by this specification, for steel-pipe dimensions. Include ferrous housing sections, EPDM-rubber gasket, and bolts and nuts.

a. Gaskets utilized for dry pipe systems shall be of silicon compound and approved for dry fire protection systems. These gaskets shall be the flush type that fills the entire cavity between the fitting and the pipe.

2.4 PIPING JOINING MATERIALS

A. Pipe-Flange Gasket Materials: AWWA C110, rubber, flat face, 1/8 inch thick or ASME B16.21, nonmetallic and asbestos free.

1. Class 125, Cast-Iron Flanges and Class 150, Bronze Flat-Face Flanges: Full-face gaskets.

2. Class 250, Cast-Iron Flanges and Class 300, Steel Raised-Face Flanges: Ring-type gaskets.

B. Metal, Pipe-Flange Bolts and Nuts: ASME B18.2.1, carbon steel unless otherwise indicated.

C. Welding Filler Metals: Comply with AWS D10.12M/D10.12 for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded.

2.5 LISTED FIRE-PROTECTION VALVES

A. General Requirements:

1. Valves shall be UL listed or FM approved.

2. Minimum Pressure Rating for Standard-Pressure Piping: 175 psig.

B. Ball Valves:

1. Standard: UL 1091 except with ball instead of disc.

2. Valves NPS 1-1/2 and Smaller: Bronze body with threaded ends.

C. Indicating-Type Butterfly Valves:

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1. Standard: UL 1091.

2. Pressure Rating: 175 psig minimum.

3. Valves NPS 2 and Smaller:

a. Valve Type: Ball or butterfly.

b. Body Material: Bronze.

c. End Connections: Threaded.

4. Valves NPS 2-1/2 and Larger:

a. Valve Type: Butterfly.

b. Body Material: Cast or ductile iron.

c. End Connections: Grooved.

5. Valve Operation: Integral electrical, 24-V dc supervisory switch for connection to building fire alarm system. Valve shall also contain a visual indicating device.

2.6 TRIM AND DRAIN VALVES

A. General Requirements:

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

2. Pressure Rating: 175 psig minimum.

2.7 SPECIALTY VALVES

A. General Requirements:

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

2. Pressure Rating:

a. Standard-Pressure Piping Specialty Valves: 175 psig minimum.

3. Body Material: Cast or ductile iron.

4. Size: Same as connected piping.

5. End Connections: Grooved.

2.8 DRY-PIPE VALVES

A. Standard: UL 260.

B. Design: Differential-pressure type.

C. Include UL 1486, quick-opening devices, trim sets for air supply, drain, priming level, alarm connections, ball drip valves, pressure gauges, priming chamber attachment, and fill-line attachment.

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D. Air-Pressure (Nitrogen) Maintenance Device:

1. Standard: UL 260.

2. Type: Automatic device to maintain minimum nitrogen pressure in piping.

3. Include shutoff valves to permit servicing without shutting down sprinkler piping, bypass valve for quick filling, pressure regulator or switch to maintain pressure, strainer, pressure ratings with 96.5 kPa (14 psig) to 413.68 (60 psig) adjustable range, and 12 bar

(175-psig) outlet pressure.

2.9 NITROGEN GENERATION SYSTEMS FOR DRY-PIPE SPRINKLER SYSTEMS

A. All products shall be FM approved or UL 508A listed.

B. All products shall be identified as a system and delivered from a single manufacturer.

C. Each Nitrogen Generation System cabinet shall be wall mount as required or permitted by manufacturer. Mount per manufacturer’s requirements.

D. Each Nitrogen Generation System shall either have an integrated, oil-less air compressor located within the Nitrogen Generation System's cabinet or a separate oil-bathed air compressor package mounted on vibration isolating mounts in the same room of the nitrogen generator cabinet, capable of both providing clean, dry, oil free compressed feed air to the nitrogen generation system and achieving the 30-minute fill per NFPA 13.

E. System piping shall be provided a by-pass of the nitrogen generator to allow air compressor to supply dry pipe systems.

F. System shall be provided with an integral air bypass tamper alarm such that a supervisory alarm condition shall be indicated on the nitrogen generator controller with the system is in the by-pass mode.

G. The air compressor associated with the nitrogen generation system shall be provided with an aftercooler, automatic tank drain, coalescing filter (to remove residual oil) and a refrigerated air dryer package.

H. Electrical shall be provided for the air compressor per the manufacturer's specifications (i.e.

wire size, voltage and proper breaker).

I. The Nitrogen Generation System shall be powered by 120VAC requiring no greater than a 20

AMP dedicated circuit.

J. For each Nitrogen Generation System, the manufacturer shall provide a single nitrogen storage tank sized as required by the manufacturer.

K. The Nitrogen Storage Tank shall be DOT or ASME rated for 150 PSI and shall be provided with ASME rated 100 PSI Safety Relief valve, on/off valve and fittings as required by the manufacturer.

L. The Nitrogen Generation System and nitrogen storage tank shall be connected to the sprinkler system utilizing Schedule 40 galvanized, black steel pipe or approved flex hosing, rated at 175

PSI.

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M. Pipe connection size shall be per manufacturer based on distance between nitrogen generator and system connection.

N. Automatic Purge Vent/Valve:

1. Vents oxygen during system nitrogen fill.

2. Automatically closes when 98 percent minimum nitrogen has been reached.

3. Sized to allow correct purge rate per manufacturer's written instructions and with 14 days.

4. Provide one venting device for each dry/pre-action sprinkler system zone.

5. Include a connection port for a portable nitrogen purity sensor or a nitrogen purity manifold.

O. Supervisory Gas Monitoring

1. Furnish two portable handheld battery operated nitrogen purity sensors capable of being manually connected to the outlet of the auto purge system for periodic inspections in order to obtain a quick purity reading of the nitrogen content within any particular system or zone.

2.10 SPRINKLER SPECIALTY PIPE FITTINGS

A. General Requirements for Dry-Pipe-System Fittings: UL listed for dry-pipe service.

B. 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: Welded fitting, grooved-tee and -cross fittings. Mechanical-tee (saddle-tee) fittings are not permitted.

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

6. Branch Outlets: Grooved or threaded.

2.11 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. Unless noted otherwise, provide quick response sprinklers throughout all areas.

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.

3. Attic sprinklers shall be “intermediate” temperature.

C. Sprinkler Finishes: Chrome plated, bronze and painted.

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D. Special Coatings: Corrosion-resistant paint.

E. Escutcheons for concealed, flush, and recessed-type sprinklers are specified with sprinklers.

F. Sprinkler Guards:

1. Sprinkler guard shall be provided on any sprinkler lower than 80 inches above the finished floor or subject to mechanical damage.

2. Sprinkler shall be approved for use with the provided sprinkler guard.

3. Standard: UL 199.

4. Type: Wire cage with fastening device for attaching to sprinkler.

2.12 ALARM DEVICES

A. Alarm-device types shall match piping and equipment connections.

B. Pressure Switches - Water-Flow Alarm Detection:

1. Standard: UL 346.

2. Type: Electrically supervised, pressure-activated water-flow switch.

3. Components: Two single-pole, double-throw switches.

4. Design Operation: Rising pressure to 6 psi (40 kPa), plus or minus 2 psi (13.8 kPa) signals water flow.

5. Adjustability: Each switch is to be independently adjustable.

6. Wire Separation: Pressure switch to provide separation of wiring to each switch connection to allow for low and high volume connections to comply with NFPA 70

Article 760 requirements.

C. Pressure Switches - Low/High Air Pressure Supervisory:

1. Standard: UL 346.

2. Type: Electrically supervised pressure supervisory switch.

3. Components: Two single-pole, double-throw switches.

4. Design Operation: Detects increase and/or decrease from normal supervisory air pressure.

5. Adjustability: Each switch is to be independently adjustable.

6. Wire Separation: Pressure switch shall provide for separation of wiring to each switch connection to allow for low and high voltage connections to comply with NFPA 70

Article 760 requirements.

D. Valve Supervisory Switches:

1. General Requirements for Valve Supervisory Switches:

a. Standard: UL 346.

b. Type: Electrically supervised.

c. Design: Signals that controlled valve is in other than fully open position.

d. Wire Terminal Designations: Indicates normal switch position when switch is properly installed on the valve and valve is fully open.

2. Requirements for Butterfly Valve Supervisory Switches:

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a. Components: Two single-pole, double-throw switches.

b. NEMA Rating: NEMA 4 and NEMA 6P enclosures suitable for mounting in any position indoors or outdoors.

c. Mounting Hardware: Removable nipple.

d. Trip Rod Length: Adjustable.

2.13 PRESSURE GAGES

A. Standard: UL 393.

B. Dial Size: 3-1/2- to 4-1/2-inch diameter.

C. Pressure Gage Range: 0 to 250 psig minimum.

D. Water System Piping Gage: Include "WATER" or "AIR/WATER" label on dial face.

E. Air System Piping Gage: Include retard feature and "AIR" or "AIR/WATER" label on dial face.

2.14 BACKFLOW PREVENTER

A. Double-Check, Detector-Assembly Backflow Preventers:

B. Standards: ASSE 1048 and UL listed or FMG approved.

C. Operation: Continuous-pressure applications.

D. Size: 6”.

E. Body: Stainless steel.

F. End Connections: Flanged.

G. Configuration: Designed for horizontal, straight through flow.

H. Accessories:

1. Valves: UL 262, FMG-approved, OS&Y gate type with flanged ends on inlet and outlet.

2.15 FIRE DEPARTMENT CONNECTION

A. Standard: UL 405.

B. Type: Flush, for wall mounting.

C. Pressure Rating: 175 psig (1200 kPa) minimum.

D. Body Material: Corrosion-resistant metal.

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E. Inlets: Brass with threads according to NFPA 1963 and matching local fire-department sizes and threads. Include extension pipe nipples, brass lugged swivel connections, and check devices or clappers.

F. Caps: Brass, lugged type, with gasket and chain.

G. Escutcheon Plate: Rectangular, brass, wall type.

H. Outlet: With pipe threads.

I. Body Style: Horizontal.

J. Number of Inlets: Two.

K. Outlet Location: Bottom.

L. Escutcheon Plate Marking: Similar to "AUTO SPKR"

M. Outlet Size: NPS 6 (DN 150).

2.16 HANGERS

A. Materials available by product type. Provide materials to comply with location and application requirements unless noted otherwise on drawings and schedules.

1. Pipe rings - Malleable iron, carbon steel.

2. Steel pipe clamps - Carbon steel, alloy, stainless steel.

3. Socket clamps - Carbon steel.

4. Structural attachments - Carbon steel, malleable iron.

5. Ceiling plates/ceiling flanges - Plastic, cast iron, malleable iron.

6. Concrete inserts and attachments – Malleable iron, carbon steel; stainless steel body, fiberglass bars, polypropylene disc (iron cross design).

7. Rod attachments - Carbon steel, malleable iron, forged steel.

8. Pipe supports - Carbon steel, cast iron.

9. Pipe shields and saddles - Carbon steel, alloy steel, stainless steel.

10. Guides - Carbon steel; slides, carbon steel with PTFE slide plates.

11. Engineered hangers - Carbon steel, stainless steel, chrome molybdenum steel.

B. Finishes: Provide finishes to comply with location and application requirements unless noted otherwise on drawings and schedules.

1. Electro-plating galvanizing process per ASTM B633.

2. Hot Dipped galvanizing process per ASTM A153.

3. Epoxy paint.

4. Zinc-rich paint.

5. Copper

6. Standard primer shall meet Fed Spec TT-P-636.

2.17 SIGNAGE

A. Provide steel or aluminum signs for each valve and to identify hydraulic design. Signs shall have white lettering on a red background with holes for easy attachment. Enter pertinent data for each system on the hydraulic placard.

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B. Pipe Labels: Preprinted, color-coded, with lettering indicating service and showing flow direction according to ASME A13.1.

2.18 SPRINKLER CABINET

A. Provide metal cabinet(s) as required containing a stock of spare sprinkler heads of all types and ratings installed as well as any special tools required for removal or replacement of the heads.

The number of spare sprinklers shall conform to NFPA 13. The cabinet shall be located within the Sprinkler Valve Room.

PART 3 - EXECUTION

3.1 PREPARATION

A. Perform fire-hydrant flow test according to NFPA 13 and NFPA 291. Use results for system design calculations required in "Quality Assurance" Article. Coordinate with local municipal water authority to obtain or conduct water flow test.

B. Report test results promptly and in writing.

3.2 PIPING INSTALLATION

A. Locations and Arrangements: Drawing plans, schematics, and diagrams indicate general location and arrangement of piping. Install piping as indicated, as far as practical.

1. Deviations from approved working plans for piping require written approval from COR.

File written approval with COR before deviating from approved working plans.

B. Piping Standard: Comply with requirements in NFPA 13 for installation of sprinkler piping.

C. Use listed fittings to make changes in direction, branch takeoffs from mains, and reductions in pipe sizes.

D. Install unions adjacent to each valve in pipes NPS 2 and smaller.

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

F. Install "Inspector's Test Connections" in sprinkler system piping, complete with shutoff valve, and sized and located according to NFPA 13.

G. Install sprinkler piping with drains for complete system drainage.

H. Install sprinkler control valves, test assemblies, and drain risers adjacent to standpipes when sprinkler piping is connected to standpipes.

I. Install alarm devices in piping systems.

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J. Install hangers and supports for sprinkler system piping according to NFPA 13. Comply with requirements in NFPA 13 for hanger materials.

K. Drain dry-pipe sprinkler piping.

L. Connect nitrogen supply to dry-pipe sprinkler piping.

M. Drain dry-pipe sprinkler piping.

N. Pressurize and check dry-pipe sprinkler system piping and nitrogen-pressure maintenance devices and/or nitrogen compressors.

3.3 JOINT CONSTRUCTION

A. Install couplings, flanges, flanged fittings, unions, nipples, and transition and special fittings that have finish and pressure ratings same as or higher than system's pressure rating for aboveground applications unless otherwise indicated.

B. Install unions adjacent to each valve in pipes NPS 2 and smaller.

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

D. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

E. Remove scale, slag, dirt, and debris from inside and outside of pipes, tubes, and fittings before assembly.

F. 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.

G. 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.

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

3.4 VALVE AND SPECIALTIES INSTALLATION

A. Install listed fire-protection valves, trim and drain valves, specialty valves and trim, controls, and specialties according to NFPA 13.

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B. Install listed fire-protection shutoff valves supervised open, located to control sources of water supply except from fire-department connections. Install permanent identification signs indicating portion of system controlled by each valve.

C. Install check valve in each water-supply connection. Install backflow preventers instead of check valves in potable-water-supply sources.

D. Specialty Valves:

E. Specialty Valves:

1. Install valves in vertical position for proper direction of flow, in main supply to system.

2. Install dry-pipe valves with trim sets for nitrogen supply, drain, priming level, alarm connections, ball drip valves, pressure gages, priming chamber attachment, and fill-line attachment.

a. Install nitrogen-pressure maintenance device with shutoff valves to permit servicing without shutting down sprinkler system; bypass valve for quick system filling; pressure regulator or switch to maintain system pressure; strainer; pressure ratings with 14- to 60-psig adjustable range; and 175-psig maximum inlet pressure.

3.5 NITROGEN-GENERATION, CORROSION-MITIGATION SYSTEM

A. Install in accordance with manufacturer's written installation instructions.

B. Locate purge vent/valve in accordance with manufacturer's written installation instructions.

3.6 SPRINKLER INSTALLATION

A. Install sprinklers in suspended ceilings in center of narrow dimension of acoustical ceiling panels.

B. Install dry-type pendent sprinklers on return bends or upright sprinklers as indicated on the drawings.

3.7 IDENTIFICATION

A. Securely attach identification signs to control valves, drain valves, and test valves. Locate hydraulic placard information signs at each sectional control valve where there is a water flow switch. Where more than one sprinkler zone is provided, signs shall indicate the specific zone served by the valve.

B. Pipe-Label Locations: Locate pipe labels where piping is exposed or above accessible ceilings in finished spaces; machine rooms; accessible maintenance spaces such as shafts, tunnels, and plenums; and exterior exposed locations as follows:

1. Near each valve and control device.

2. Near each branch connection excluding short takeoffs. Where flow pattern is not obvious, mark each pipe at branch.

3. Near penetrations and on both sides of walls, floors, ceilings, and inaccessible enclosures.

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4. At access doors, manholes, and similar access points that permit a view of concealed piping.

5. Near major equipment items and other points of origination and termination.

6. Spaced at maximum intervals of 50 feet along each run. Reduce intervals to 25 feet in areas of congested piping and equipment.

7. On piping above removable acoustical ceilings. Omit intermediately spaced labels.

3.8 FIRESTOPPING AND FIREPROOFING

A. Firestop all holes for piping, or other penetrations, wh ich pass through floor slabs, fire-rated walls, partitions with fire-rated doors, vertical service shafts, or any fire-rated assemblies in accordance with Division 7 Section Firestopping. Existing holes through which new piping for this project passes shall be totally firestopped in a manner that restores the fire protection rating of the penetrated wall, floor, ceiling, or other structure.

B. Where structural fireproofing is disturbed, damaged, or destroyed as a result of the sprinkler system installation, the contractor shall be responsible for restoring the firep r o o f i n g to the required fire resistance rating in an approved manner. This restoration shall be done in accordance with the UL listing or FM approval of the fireproofing materials, requirements of the building, fire, and life safety codes in effect for the project, and in accordance with

Division 7 Section Applied Fireproofing.

3.9 ESCUTCHEON INSTALLATION

A. Install escutcheons for piping penetrations of walls, ceilings, and finished floors.

B. Install escutcheons with ID to closely fit around pipe, tube, and insulation of piping and with

OD that completely covers opening.

3.10 SLEEVE INSTALLATION

A. Install sleeves for piping passing through penetrations in floors, partitions, roofs, and walls.

1. In penetration through fire rated assemblies, sleeves shall only be used if specifically permitted in the listed through-penetration firestop system being utilized.

B. For sleeves that will have sleeve-seal system installed, select sleeves of size large enough to provide1-inch annular clear space between piping and concrete slabs and walls.

1. Sleeves are not required for core-drilled holes.

C. Install sleeves in concrete floors, concrete roof slabs, and concrete walls as new slabs and walls are constructed.

1. Cut sleeves to length for mounting flush with both surfaces.

Exception: Extend sleeves installed in floors of mechanical equipment areas or other wet areas 2 inches above finished floor level.

2. Using grout, seal the space outside of sleeves in slabs and walls without sleeve-seal system.

D. Install sleeves for pipes passing through interior partitions

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1. Cut sleeves to length for mounting flush with both surfaces.

2. Install sleeves that are large enough to provide 1/4-inch annular clear space between sleeve and pipe or pipe insulation.

3. Seal annular space between sleeve and piping or piping insulation; use joint sealants appropriate for size, depth, and location of joint. Comply with requirements for sealants specified in Section 079200 "Joint Sealants."

E. Fire-Barrier Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors at pipe penetrations. Through penetrations shall comply with specification section 78400

"Through-Penetration Firestop Systems."

1. In penetration through fire rated assemblies, sleeves shall only be used if specifically permitted in the listed through-penetration firestop system being utilized.

3.11 FIELD QUALITY CONTROL

A. Perform tests and inspections.

B. Tests and Inspections:

1. Hydrostatically test wet-pipe sprinkler system, as required by NFPA 13, in the presence of the Owner or their designated representative. The Contractor and an authorized representative from each supplier of equipment shall be in attendance at the preliminary test. Test waterflow alarms, tamper switches, and all other devices for smooth and correct operation. Test the waterflow alarms by flowing water through the inspector's test connection. When tests are completed and corrections made, submit signed and dated

“Contractor’s Material and Test Certificates” in accordance with NFPA 13, with a request for final inspection and tests.

2. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

3. Flush, test, and inspect sprinkler systems according to NFPA 13, "Systems Acceptance"

Chapter.

4. Energize circuits to electrical equipment and devices.

5.…

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