09006 15300.pdf

SECTION 15300

DIVISION 15 – FIRE SPRINKLER SPECIFICATIONS

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PART 1 – GENERAL:

1.01 RELATED DOCUMENTS:

A. Drawings and General Provisions of Contract, including General Supplementary Conditions apply to work specified in this section.

1.02 SYSTEM DESCRIPTION:

A. Furnish and install a complete, fully automatic “wet pipe” sprinkler system in all areas of the building. This includes sprinkler piping from a point 5’-0” outside of the building and all underground fire department connection piping. Division 15100 shall install the fire protection line up to 5’-0” outside the building from the street water or site water main as indicated on the plans. Furnish and install a reduced pressure backflow preventer (R.P.B.P.) on site main as shown on the plans. Insure R.P.B.P. meets or exceeds NFPA-13, City of Tucson Fire and Water Department and Air National Guard (Tab D) standards. The fire sprinkler system shall include all items of a minor nature necessary to complete the installation.

Sprinkler system designs shall comply with NFPA #13, the local Fire Department and the requirements specified hereinafter. The underground installation shall be in accordance with NFPA #24.

B. The fire protection system shall be fabricated and installed by a fire protection system contractor licensed in the State of Arizona and experienced in this type of system design and installation with a minimum of five years experience. Fire protection plans shall be designed and sealed by a Professional Fire Protection Engineer registered by the State of Arizona.

C. The drawings indicate the location of the riser, water motor gong and fire department connections for bidding purposes. The design shall be based on a hydraulically calculated design for the hazard occupancies noted on the drawings or as determined by local authorities. The contractor shall use the drawings for reference only. ANY ITEMS SUCH AS COVERAGE

OF THE BUILDING, PIPE SIZES, HEAD SPACING AND OTHER

REQUIREMENTS OF THE AUTHORITIES HAVING JURISDICTION

SHALL BE INCLUDED BY THE CONTRACTOR, WHETHER

SPECIFICALLY SHOWN ON THE DRAWINGS OR MENTIONED IN THE

SPECIFICAITON OR NOT.

1.03 APPROVAL:

A. All work shall be installed in accordance with all codes, laws, rules and regulations of all national, state, county and local, authorities having

15300 - Page 2 of 11 jurisdiction over the premises. This shall include, but not be limited to the State Fire Marshall, Fire Department having jurisdiction, NFPA #13, and carrier of the building insurance.

B. Secure and pay for all permits, inspections and certificates required by the foregoing authorities.

C. NOTHING UNDER THIS HEADING SHALL BE CONSTRUED TO

RELIEVE THE CONTRACTOR FROM COMPLYING WITH

REQUIREMENTS OF THE PLANS AND SPECIFICATIONS THAT MAY

BE IN EXCESS OF CODE REQUIREMENTS.

1.04 PROJECT/SITE CONDITIONS:

A. Before submitting a bid, the contractor shall carefully study the architectural, civil, mechanical, electrical and plumbing drawings and shall make careful examination of the premises and any existing work. He shall determine, IN ADVANCE, the methods of installing and connecting the apparatus, the means to be provided for getting the pipe into place, and shall make himself thoroughly familiar with all the requirements of the contract.

B. BY THE ACT OF SUBMITTING A PROPOSAL FOR THE WORK

REQUIREMENTS INCLUDED IN THE CONTRACT THE CONTRACTOR

SHALL BE DEEMED TO HAVE MADE SUCH STUDY AND

EXAMINATION, AND TO BE FAMILIAR WITH AND ACCEPT ALL

CONDITIONS OF THE SITE. THIS CONTRACTOR SHALL BE HELD

RESPONSIBLE FOR AND ABSORB ANY COSTS INCURRED FOR

MODIFICATIONS TO THE DESIGNED SYSTEM WHICH ARE A RESULT

OF LACK OF COORDINATION AS DETERMINED BY THE

CONTRACTING OFFICER.

1.05 SUBMITTALS:

A. Submit to the Contracting Officer, complete shop drawings of head and pipe locations as specified hereinafter, for review as to compliance with contract intent. After shop drawings are returned from the Contracting Officer, submit for approval full shop drawings to the authorities having jurisdiction.

B. Before starting work, submit six (6) copies of shop drawings or literature bound in a 3-ring folder with indexed dividers in accordance with General Conditions on the following items:

1. Sprinkler heads – all types of escutcheons.

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2. Water motor gong.

3. Valves – all types.

4. Fire department connection.

5. Flow switches

6. Tamper switches

7. Alarm valve

8. Pipe

9. Hangers

10. Other items as directed by the Contracting Officer

C. Materials and equipment shall conform to the requirements of the Underwriter’s Laboratories, Inc. or the Factory Mutual Engineering Corporation for systems of the type indicated. The contractor shall submit proof that the items furnished under this specification conform to such requirements. The Underwriter’s Laboratories, Inc. label or seal, or listing in the Fire Protection Equipment List will be acceptable evidence that the items conform to the requirements of the Underwriter’s Laboratories, Inc.

The Factory Mutual label or seal, or listing in the Factory Mutual Approval Guide will be acceptable evidence that the items conform to the requirements of the Factory Mutual Engineering Corporation.

PART 2 – PRODUCTS:

2.01 PIPE FITTINGS

A. Sprinkler piping to be black steel, ASTM A-53, grade A or B, or A-135, schedule 40 and/or thin wall pipe of a type approved for fire sprinkler services in NFPA #13, with Malleable iron fittings, ANSI B16.3, or cast iron fittings, ANSI B16.4, or UL approved, bolted flexible, groove type couplings, fittings, mechanical-tee stub-ins. Sections of branch lines, cross mains, or risers may be welded subject to limitations as outlined in

NFPA #13.

B. Overhead pipe fittings to be of the threaded or grooved type as approved by NFPA for the service desired.

C. This contractor’s underground water supply work to start from 5’-0” outside the building. This contractor to install underground fire department connection piping.

D. Underground piping from the building to 5’-0” outside of the building shall be Schedule 40 welded steel pipe wrapped and tarred to protect against corrosion in accordance with NFPA standards and similar to city of Tucson requirements.

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E. Underground pipe and fittings beyond 5’-0” outside the building and from remote fire department connections shall be in accordance with applicable requirements approved by NFPA or local Authority having jurisdiction.

Provide corrosion protection as required for underground pipe.

F. There shall be no pipe fittings other than welded joints buried below the building as approved by NFPA #24.

G. No bushings shall be used.

H. Exterior exposed piping shall be minimum 2” in diameter and painted in accordance with NFPA-13.

2.02 SPRINKLER HEADS:

A. Sprinklers shall be Viking, Grinnel, Star, Central or approved equal, upright, pendent, or sidewall.

B. Recessed pendent type Viking Model #M (or equal) sprinkler with glass bulb heads with satin chrome finish and Viking Model “E-1” (2) piece adjustable escutcheons in areas with suspended, gypsum board or finished ceilings. Locate heads 12” from ceiling “T” on 3 sides or in center of 2 x 4 ceiling tile. Final head layout requires Contracting Officer’s approval.

C. Upright brass finish head Viking Model “M” (or equal) in all unfinished spaces and space without suspended, gypsum board or finished ceilings.

D. Sidewall heads Viking Model “M (HSW)”, “M (VSW)” (or equal) with satin chrome finish (including escutcheons).

E. Provide protective wire guards for all heads that might be subject to physical damage, including all heads that are seven (7) feet or less above the floor.

F. Sprinklers shall conform to Fire Protection Equipment List of the Underwriter’s Laboratories, Inc., for the required application and for upright, pendent, sidewall, or other locations. Sprinklers shall be placed in the upright or pendent position as required, with the deflector parallel to the ceiling or roof. Clearances between the deflectors or other obstructions shall be in accordance with NFPA #13. (Specific regard to NFPA 13 B-4-2.3 will be expected with additional heads provided where any question of coverage exists.)

G. Automatic sprinklers shall be standard automatic closed type with ½ inch nominal size orifice. Temperature ratings of fusible elements shall be in

15300 - Page 5 of 11 accordance with NFPA #13. In areas of above normal temperatures, high temperature sprinklers suitable for the temperature conditions involved shall be provided.

H. The contractor shall furnish spare automatic sprinklers in accordance with NFPA #13. The sprinklers shall be packed in a suitable metal cabinet and shall be representative of and in proportion to the number of each type and temperature rating of the sprinklers installed. The contractor shall furnish no fewer than two special sprinkler head wrenches, or at least one head wrench for each cabinet or sprinkler type, whichever is greater.

2.03 ALARM BELL/WATER MOTOR GONG:

A. Alarm bell shall be vibrating 120/1/60 U.L./FM approved. Coordinate with Division 16.

B. Water motor gong shall be water-activated and U.L./FM approved.

2.04 FLOW SWITCHES:

A. Flow Alarm Switch: Install in sprinkler lines required by NFPA, UL approved water flow switch that will close contacts when flow is detected.

Install water flow switches and adjacent valves to be easily accessible in chases or shafts, behind access panels no more than 7’-0” above the floor. Locate flow switch minimum of 12 inches from a fitting that changes the direction of flow and not less than 24 inches from a drain connection or 10 pipe diameters from a gate, check or alarm valve.

B. Supervisory system flow switches (two pole) paddle type shall be installed in each sprinkler riser main with instantly recycling pneumatic retard, adjustable from 10 to 90 seconds, for actuation of alarm circuit.

Coordinate with Electrical Engineer and/or Contractor and with the requirements of Division 16 for the fire alarm systems.

2.05 TAMPER SWITCH:

A. Provide tamper switch for service entrance valve in riser and at each zone valve. Switch shall close contacts when valve tampering occurs.

B. Tamper switches for each sprinkler zone control valve and main entrance service valve shall be connected to the fire alarm system.

2.06 FIRE DEPARTMENT CONNECTIONS:

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A. Siamese inlet installed at wall or pit location shall be polished chrome, 36” above grade mounted angle body, fire department connection with polished chrome cover sleeve and identification plate, 2-1/2 inch connections (quantity to suit system size) threaded to match those of local fire department, polished chrome caps and chains. Identification plate shall have integral raised letters “Automatic Sprinkler”. Provide connection with an Underwriters Laboratories, Inc. approved swing check valve. Install an automatic ball drip between Siamese Connection and check valve.

2.07 VALVES:

A. Control valves to be OS & Y or butterfly (gear operated indicating type) complete with normally open tamper switch. All valves to be U.L. and F.M. approved 175 psig WWP.

B. Provide identification sign (enamel on metal) on all valves in accordance with NFPA #13. All valves except zone control and main entrance service valves shall be sealed closed. Each sign shall have the area served specified on the back of the sign or on a wall posted adjacent thereto.

C. All valves and switches must be installed within seven feet of the floor in accessible locations as required by code and to provide economical maintenance services. Ceiling areas are not acceptable.

D. Alarm check valves shall be provided with standard trimmings including circuit closer, pressure gauges, retarding chamber, alarm switch, testing bypass, and all necessary pipe, fittings and accessories required for a complete installation in accordance with NFPA #13. Shotgun style check valves shall be provided with standard trimming including pressure gauges, main drain, and all necessary pipe fittings and accessories required for a complete installation in accordance with NFPA #13.

E. Provide system control valve at each riser location per paragraph (A) and plans.

F. Reduced Pressure Backflow Preventer

1. Backflow preventers located outdoors shall be a minimum of 12 inches above grade, maximum of 30 inches above grade and shall be enclosed in a protective lockable enclosure. The enclosure shall be fully removable for access and shall not retain water. The backflow preventer shall be supported by Grinnell pipe supports or equal set in concrete blocks for 3 inches and larger devices.

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2. Reduced pressure backflow preventers to be equal of Hersey Beeco, Febco, Condraco, or Watts.

2.08 HANGERS:

A. Support sprinkler piping from building structure with hangers and supports in accordance with NFPA #13 and with requirements of U.L.

2.09 ADJUSTABLE DROP NIPPLE:

A. Black steel, 2-1/2 to 5 inches consisting of body, nipple, retaining ring, o-ring and rollers. Underwriters Laboratories, Inc. or Factory Mutual Research Corporation approved, 175 psig WWP.

2.10 SPRINKLER FITTING:

A. Hooking collar assemblies may be used for connecting sprinklers or drop nipples to sprinkler pipe. Housing shall be malleable iron or ductile iron.

Underwriters Laboratories, Inc., or Factory Mutual Research Corporation approved, 175 psig WWP.

2.11 SYSTEM DRAINS:

A. Provide drains on system risers, valved sections, and at any other locations where 5 gallons or more trapped water occurs.

B. All drain valves shall be globe style, slow close, of appropriate size per NFPA #13. All drains shall be connected to main drain or shall spill outside building over splash block at a 45 degree angle.

C. Main drain valves and pipes shall be 1-1/4” for riser sizes of 3” or less.

Drain valves and pipes shall be 2” for riser sizes above 3”. All drain pipes shall be daylighted outside per paragraph (B) above. No drain pipe shall terminate inside building.

D. Auxiliary drains and pipes shall be sized per NFPA #13 and authorities having jurisdiction. All drain pipes shall be daylighted outside per paragraph (B) above. No drain pipe shall terminate inside building.

E. Automatic ball drips shall be UL or FM approved ¾” cast brass in line with both ends threaded with iron pipe threads. Ball drips to drain to outside per paragraph (B) above.

2.12 SLEEVES:

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A. Where pipes pass through masonry or concrete walls or floors, (except slab or grade) pipe sleeves shall be installed. Pipe sleeves shall be schedule 40 steel pipe for all pipes passing through fire rated floors or walls. Sleeves through concrete walls or floors shall be installed per NFPA #13 (specific regard to NFPA 13 3.5.3.4). Sleeves through floors shall extend a minimum of two (2) inches above the finished floor.

Sleeves for non-rated walls shall be 18 gauge sheet metal. Sleeves through walls shall extend from finished surface to finished surface.

B. All pipe sleeves shall be one continuous piece. The outer surface of the sleeve shall be fixed to the partition it penetrates with pour rock, mortar, or etc. The internal surface shall be sealed with UL approved flexible material to the fire rating of the partition. B10 fireshield (Conref West 602- 953-7664) or equivalent. Where required, penetrations through rated walls must be sealed with fire stops conforming to 1991 UBC section 4304 (e), 4304 (f) and 4305 (b).

C. Sleeve is not to support pipes as it will transmit vibration and sound to structure.

D. Solid chrome plated steel escutcheon plate shall be provided to cover the sleeves at any finished surface.

E. Copper pipe passing through a steel sleeve shall be protected with polyethylene tape or dielectric materials.

2.13 INSPECTOR TEST:

A. Test value to be globe style, nominal 1”, with ½” restriction per NFPA #13.

B. Test valve location to be concealed in wall with access panel or as drawings show. Drain pipe to outside per specification 2.11 D. Test valve shall not exceed 7’-0” above floor.

PART 3 – EXECUTION:

3.01 GENERAL:

A. The fire protection systems shall be designed, fabricated and installed by a fire protection system contractor licensed in the State of Arizona and experienced in this type of system design and installation with a minimum of five (5) years experience.

B. All sprinkler piping in areas/rooms with finished ceilings must be concealed unless noted otherwise. The contractor must notify the

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Contracting Officer in writing if piping in these areas cannot be concealed.

Exposed sprinkler piping in areas/rooms with finished ceilings will not be permitted without the Contracting Officer’s approval.

C. The contractor shall coordinate closely with the fire alarm contractor for all alarm tie-ins for a fully supervised system.

D. All control, drain, test, and alarm valves shall be properly tagged in accordance with NFPA #13.

E. Due regard shall be given to light fixtures and HVAC. Cutting of structural members for the passage of sprinkler piping or for pipe hanger fastenings will not be permitted without the Contracting Officer and Structural Engineer’s approval.

F. Arrange, phase, and perform work to assure adequate services for the Government at all times.

G. Connect new work to existing work in a neat and workmanlike manner.

Where an existing surface must be cut, or existing utilities interfere, such obstruction shall be by-passed, removed, replaced or relocated, patched and repaired. Work disturbed or damaged shall be replaced or repaired to its prior condition.

H. Each sprinkler zone shall coincide with each smoke zone as required by NFPA #101, and shall be shown on the fire protection drawings. Provide accessories as indicated on drawings, including valves, flow switch, sight glass etc.

I. The sprinkler system supply main line shall be laid below the local frost line. Depths of cover over water pipes shall be in accordance with NFPA #24. Connection to the water supply main shall be performed to minimize inconvenience resulting from water service interruption.

3.02 CUTTING AND PATCHING:

A. Do all necessary cutting as may be required for the proper installation of this work. Coordinate all cutting with Contracting Officer and/or General Contractor.

B. The General Contractor will provide the chases and openings through masonry or concrete walls, floors and the roof that are shown on the architectural drawings. All other openings that are necessary for the installation of the work under this section shall be by this contractor.

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C. This contractor, however, shall cooperate with the General Contractor and shall layout all chases and openings required for the installation of work under this section. This contractor will be held solely responsible for the proper size and location of chases, openings, sleeves, inserts, anchor bolts, etc. Failure to provide all facilities during normal construction sequence renders this contractor liable for all corrective construction.

3.03 BRACING AND CLAMPING:

A. Underground bends, plugs, and tees shall be braced or clamped in accordance with the requirements of NFPA #24. The connection between the underground piping and the base of the riser shall be anchored by means of tie rods and pipe clamps.

B. Piping above grade shall be braced as required by NFPA #13.

3.04 SYSTEM CLEANING:

A. Before connecting sprinkler system to underground supply connections, each supply connection shall be flushed out thoroughly in accordance with requirements of NFPA #13.

B. Upon completion of the sprinkler installation, each system including the underground supply connection shall be sterilized with an approved chlorinating material before system is placed in operation. The amount of chlorine applied shall be such as to provide a dosage of not less than 50 parts per million. The chlorinating materials shall be introduced into the water supply lines and sprinkler systems in a manner approved by the Contracting Officer.

C. Following a contact period of not less than 8 hours, the chlorinated water shall be flushed from the system with clean water until the residual chlorine is not greater that .04 parts per million. All valves in water lines being sterilized shall be opened and closed several times during the 8 hour period.

3.05 TESTS:

A. Perform hydrostatic tests as required by NFPA #13 and #24.

Hydrostatically test piping system at 200 PSI for not less than two (2) hours. Upon completion of test and when satisfactory results have been obtained, certify in writing that all required tests have been performed and that approval of system has been obtained from authorities having jurisdiction over work. The tests shall be performed in the presence of Fire Marshall, Local Authority, General Contractor and Contracting

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Officer’s representative. Furnish the Contracting Officer with a certificate as required thereof.

3.06 OPERATION AND MAINTENANCE MANUAL:

A. Furnish and install, as directed, a printed sheet, protected by glass or a transparent plastic cover, giving brief instructions regarding control, maintenance, operation, emergency procedure and other data as deemed necessary and approved by the authority having jurisdiction and the Contracting Officer.

B. The contractor shall furnish the Contracting Officer with one bound copy of complete instructions, including catalog cuts, diagrams, drawings, and other descriptive data covering the proper testing, operation, and the necessary information for ordering replacement parts. In addition, one copy of complete instruction shall be posted at the alarm check valve location.

C. The contractor shall furnish (2) NFPA #13A instruction manuals covering the necessary and recommended testing, operating, and maintenance procedures for each type of system to the using service maintenance personnel as directed by the Contracting Officer.

3.07 WARRANTY:

A. Automatic fire sprinkler system shall be guaranteed for a period of one year from date of final acceptance against defective materials, design and workmanship. This contractor shall repair or replace within a 10 day working period all faulty work during this period at his own expense.

3.08 RECORD DRAWINGS:

A. Upon completion of installation and acceptance by governing agencies, the contractor shall submit to the Contracting Officer, one (1) sepia of installation as installed for record purposes.

END OF SECTION