TRUMAN STATE UNIVERSITY OPHELIA PARRISH FINE ARTS CENTER ACOUSTICAL RENOVATIONS TABLE OF CONTENTS DIVISION 21 FIRE PROTECTION SYSTEM

Transcription

1 TABLE OF CONTENTS DIVISION 21 FIRE PROTECTION SYSTEM FIRE PROTECTION SYSTEM GENERAL REFERENCES, REGULATORY REQUIREMENTS REFERENCES, RELATED SECTIONS of the SPECIFICATIONS DEFINITIONS WORK INCLUDED SUBMITTALS SPECIAL REQUIREMENTS CLOSE-OUT REQUIREMENTS DESIGN WATER SUPPLY LAYOUT - GENERAL to all SPRINKLER SYSTEMS APPROVALS TESTING ACCEPTANCE SPACE CLASSIFICATION SERVICE ENTRANCE VALVES PIPING MATERIAL and FITTING SCHEDULE WET PIPE SPRINKLER SYSTEM SPRINKLER HEADS AREAS SUBJECT to FREEZING... 6 TABLE OF CONTENTS TOC-1

2 THIS PAGE INTENTIONALLY LEFT BLANK

3 FIRE PROTECTION SYSTEM GENERAL A. This section specifies a hydraulically calculated fire protection system designed and installed by the Contractor as described on the drawings and hereinafter. B. It is the intent that the drawings and specifications shall describe and provide for a working installation complete in every detail and all items necessary for such complete installation shall be furnished whether specifically mentioned or not. C. The Plans, the general provisions of the Contract including the General, Supplementary and/or Special Conditions and specification sections of Division 1 shall apply to Work of Divisions of the Specifications. D. Provisions and conditions cited in this Section shall apply to Work for other sections of Divisions of these Specifications REFERENCES, REGULATORY REQUIREMENTS A. Work for this Section of the Specifications shall be performed in accordance with the Codes, Standards, etc. as identified in Division 20 in addition to the following: 1. National Fire Protection Association (NFPA) 13, The Local Authority having jurisdiction REFERENCES, RELATED SECTIONS OF THE SPECIFICATIONS Requirements of the following Sections of the Specifications apply to Work for this Section: A. Division 20 - Basic Mechanical Conditions. B. Division 20 - Basic Mechanical Materials and Methods DEFINITIONS A. The term layout where used in this Section of the Specifications shall mean drawings prepared by the Contractor showing where all piping and heads are located. These drawings should include pipe elevations, need not include pipe sizes and should not include hydraulic calculations. B. The term Authority Having Jurisdiction or AHJ where used in this Section of the Specification shall mean the organization, office, or individual responsible for approving equipment, an installation, or a procedure. C. The term rhythm where used in this Section of the Specifications shall mean spaced in a manner which would place the heads at the same location with respect to lights or diffusers (i.e., for a row of lights spaced at 12' centers heads shall also be on 12' centers so that the heads will remain the same number of ceiling tiles or distance away from the lights; where there is an odd number of tiles between lights or diffusers, it is also preferable to have heads located at the tile centered between them). FIRE PROTECTION SYSTEM 21-1

4 D. The term working drawings where used in this Section of the Specifications shall mean drawing of the quality and containing all information as which would be required for approval by local official and for field construction WORK INCLUDED A. Furnish material, labor and services necessary for and incidental to the installation of the following systems where shown on the Plans and as hereinafter specified. Include all necessary work in the related sections of the Specifications (Subsection to perform the Work completely. B. Furnish and install a complete hydraulically engineered extension of the building fire protection system including the addition of heads on existing branch lines. 1. Hydraulic calculations shall include the domestic water demand in all common piping back to the point of the flow test. C. Verify actual water supply with a test, preferably witnessed or performed by the local fire official. D. Contractor shall coordinate his work with the work of other trades, and with the architectural and structural drawings SUBMITTALS A. The Contractor shall prepare submittals for approval in accordance with Subsection , Duties of Contractor - Submittals. B. Submit Layout drawings and equipment cut sheets with 30 days from the General Contractor s contract date SPECIAL REQUIREMENTS A. The Contractor preparing the drawings and calculations shall be NICET Level 3 certified or a Professional Engineer licensed in the State of Missouri whichever is required by the Authority Having Jurisdiction. B. All equipment shall be U.L. Listed or F.M. approved for use in fire protection systems CLOSE-OUT REQUIREMENTS A. Reference Section B. Where NFPA maintenance information is utilized, it shall be edited to contain only information that is relevant to this project DESIGN WATER SUPPLY A. The water supply shall be a connection to the (City) water supply. B. A new flow test witnessed by the Fire Marshal shall be conducted. C. This information is provided for general information only. FIRE PROTECTION SYSTEM 21-2

5 D. Design water pressure requirements shall include a minimum of [10-psi] safety factor. Where Authority having jurisdiction requires a higher safety factory it shall be used. E. The point of this Contractor's work shall start where determined by the General Contractor and local trade practices LAYOUT - GENERAL TO ALL SPRINKLER SYSTEMS A. The layout shall be submitted to the Architect prior to performing hydraulic calculation, sizing pipes or seeking approvals from the authority having jurisdiction. B. The Architect/Engineer will review layout for aesthetics, and pipe routings for consistency with the construction documents. C. Minimum head spacing shall be as per NFPA-13., additional heads may be required by the Architect/Engineer to create spacing that works with the reflected ceiling plans. Contractor shall layout any areas not shown on the plans with symmetry and rhythm in mind. D. Heads shall be on return bends and centered ± 1 for ceiling clouds. E. Contractor shall not scale the drawing, refer to architectural drawings for dimensions. Where the room dimension is at the maximum size listed for the sprinkler heads, install an additional row of sprinklers. F. Contractor shall locate heads in the field from the final wall locations. It shall be brought to the Architect s/engineer s attention where the center of tile location exceeds the maximum distance of the sprinkler. Additional heads shall be added and the layout modified as directed by the Architect/Engineer at no additional cost to the Owner. G. All sets and rises shall be located above ceilings of adjacent spaces of rooms without ceilings as opposed to making the sets and risers in the exposed spaces. H. Inspector test connections and auxiliary drains shall be piped to spaces not occupied by building occupants, i.e., Mechanical Rooms, Storage Rooms, Janitor's Closets, etc APPROVALS A. Submittal drawings shall show lights, ducts, and pipes indicating all necessary rises and drops in sprinkler piping required for routing. Drawings shall be of a minimum of the same scale as the contract documents (1/8 = 1'-0 scale, ¼ = 1'-0 scale.). A ¼ scale drawing of the service entrance and an elevation of the service entrance shall be required. A sprinkler riser diagram showing all control valves, test connections, supervisory switches, and drains shall be required. B. The layout submittals shall contain at least two (2) copies of reproducible sepias of piping layout. Equipment cut sheets shall also be provided at this time. C. Any pipe sizing or hydraulic calculations performed prior to the Contractor receiving the layout submittal with the 'approved stamp' of the Engineer shall be at the Contractor's own risk. Any design changes resulting in resizing pipe and/or revising hydraulic calculations will be done at no cost to the Owner. D. The working drawing submittals shall contain at least two (2) copies of reproducible sepias of piping layout and at least two (2) copies of hydraulic calculations. Calculations shall include peaking information for each area calculated. The hydraulic calculation used for the system design shall be clearly identified from all other hydraulic calculations and should show the safety factor the designed system has relevant to the available water test pressure. FIRE PROTECTION SYSTEM 21-3

6 E. Hydraulic calculations shall include: actual pipe internal diameters and coefficients of materials approved in the layout submittal; design density; remote area size; and area per sprinkler. F. The Contractor shall not pursue any approvals or interpretations of the design documents except through the office of the Architect/Engineer. G. All work shall meet the requirements of the Owner, authority having jurisdiction, Owner's insurance underwriter, Architect and Engineer. These requirements may be greater than required by NFPA. Work shall not start prior to the Contractor receiving the working drawing shop drawings with the 'stamp' of the Engineer and approval from the authority having jurisdiction TESTING A. Preliminary testing witnessed by the Architect/Engineer shall be conducted to assure proper operation before the final test is scheduled. Prior to this testing, pipes shall be flushed, hydrostatically tested, and all valves and devices shall be operated. All requirements of System Acceptance of NFPA 13 shall be met in full. B. The sprinkler system shall be final Acceptance tested in the presence of the Owner's Representative and the governing agencies having jurisdiction for approval ACCEPTANCE A..Acceptance test performed as described above. B. Contractor shall fill out completely and sign Contractor's Material and Test Certificate provided in NFPA-13 and submit to Engineer for approval and thus system acceptance SPACE CLASSIFICATION A. The most stringent of NFPA-13, local practices, or the following criteria shall be used in the sprinkler system design and hydraulic calculations. 1) Light Hazard: SERVICE ENTRANCE VALVES Offices Toilet Rooms Lobby/Commons Area Corridors Music Rooms Meeting Rooms Training Room Multi-Purpose Rooms Stairs A. All valves shall be UL listed or F.M. approved and rated for 175 psi and listed for use in fire protection systems. B. Zone valves shall be, flanged or groove-end, UL 262 OS&Y gate valve or UL 1091 butterfly valve with manual gear operator, position indicator, and integral tamper switch. FIRE PROTECTION SYSTEM 21-4

7 C. Drain valves shall be MSS SP-80, Type 2, Class 125 minimum, threaded or groove-end rising stem globe valve PIPING MATERIAL AND FITTING SCHEDULE A. Size: 2-1/2 and larger above grade. 1. Pipe: Schedule 10 Steel, listed lightweight steel, or Schedule 40 steel at the Contractor's option. 2. Fittings: Butt-welded, groove-end, forged steel flanged. 3. Joints: Butt welded, groove-end couplings, flanged. 4. Tests: Hydrostatically at not less than 200 psi for two (2) hours per NFPA 13, Section B. Size: 2 and smaller above grade. 1. Pipe: Schedule Fitting: Cast iron. 3. Joints: Screwed, groove-end. 4. Tests: Hydrostatically at not less than 200 psi for two (2) hours per NFPA 13, Section C. The following types of fittings are prohibited: plain end couplings and fittings, saddle tee, Victaulic flange rings, and Victaulic reducing couplings. D. Pipe velocities shall not exceed 14 feet per second in any section of the piping system WET PIPE SPRINKLER SYSTEM SPRINKLER HEADS A. All sprinkler heads are to be quick response liquid in glass bulb type, with a minimum of ½ inch orifice, ½ inch NPT, and a K factor of Sprinklers have an orifice larger than ½ inch shall be ¾ NPT. B. In finished spaces with ceilings, concealed sprinklers with an adjustable white coverplate shall be used. Heads shall be equivalent to the Viking model Horizon Mirage, Star model Stealth S110, Central model Royal Flush Concealed, or Reliable model G4QR. C. Temperature range and response time shall be suitable for the location and the expected heat release. Within a space all sprinklers should be the same Temperature Range and Response Time to avoid skipping. FIRE PROTECTION SYSTEM 21-5

8 AREAS SUBJECT TO FREEZING A. At locations which are subject to freezing and where permitted by the Authority having jurisdiction provide anti-freeze fill loop with all required specialties including, but not limited to, fill cup, test valves, drain valve, and backflow preventer. At locations which the above is not permitted provide a dry pipe system. END OF SECTION FIRE PROTECTION SYSTEM 21-6