Memorial Hermann Best Practices s5

Memorial Hermann Best Practices July, 2013

SECTION 21 13 19 PRE-ACTION SPRINKLER SYSTEM

PART 1 - GENERAL

1.01 WORK INCLUDED

A. A double interlocked pre-action system shall be provided with the method of release being an electric solenoid valve and a pneumatic actuator. The electric solenoid valve will open upon activation of the electrical supplemental detection system. The pneumatic actuator shall open upon loss of supervisory air due to activation of a sprinkler. Both devices must activate before the deluge valve will open. Opening of the deluge valve shall not be dependent on release device order of activation. The riser shall be a listed and approved assembly provided with all necessary appurtenances to complete the system. A rubber seated check valve shall be installed downstream of the deluge valve and prior to the supervisory air connection.

B. System shall be installed in accordance with drawing and specifications, however, no requirements of NFPA 13 shall be violated. Material and labor necessary to fully comply with drawings and specifications and with rules, regulations, ordinances shall be furnished by the Contractor.

C. Scope of work: 1. Hydraulic design of sprinkler system 2. Shop drawings 3. Riser Assembly 4. Air Compressor 5. Release Control Panel 6. Smoke/Heat Detectors

1.02 RELATED WORK

A. Section 07 84 46: Fire-Resistive Joint Systems

B. Section 09 91 00: Painting

C. Section 21 05 00: Common Work Results for Fire Suppression

D. Division 26: Electrical

1.03 INSTALLER QUALIFICATIONS

A. Comply with local and state licensure requirements for installation of fire protection system.

1.04 DESIGN REQUIREMENTS

A. Not more than 1000 closed sprinklers shall be controlled by any one pre-action valve, or maximum 750 gallon system capacity.

B. Sprinkler piping and detection devices shall be automatically supervised when there are more than 20 sprinklers on the system.

C. Automatic sprinklers on pre-action system installed in the pendent position shall use a return bend pipe arrangement and be located in a heated area. Provide approved dry pendent type if installed in an area subject to freezing.

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D. Sprinkler piping shall be galvanized for dry pipe system.

E. Design 100% hydraulically calculated pre-action sprinkler system in accordance with Owner's insuring agency guidelines, NFPA 13, state and local code requirements.

F. Design system to serve area as noted on Drawings.

G. Refer to Section 21 13 13 for design density of sprinkler head in light and ordinary hazard occupancies.

H. Maximum pipe velocity of 25 feet/second.

I. System air pressure shall be restored to normal in 30 minutes or less.

J. Provide accelerator when system capacity exceeds 500 gallons.

K. System shall be designed for water to reach the most remote sprinkler head within 60 seconds.

L. A fire-hydrant flow test shall be performed/obtained by contractor as a basis for hydraulically calculated systems. Testing shall be conducted at a location representative of the actual future system(s) supply and be no more than 6 months old at date of submission. The flow test report shall be submitted with sprinkler system drawings/calculations and have, as a minimum, the following information: 1. Contractor’s name, company, telephone number and address. 2. Project Name. 3. Date, time and location of flow test. 4. Static pressure (in pounds per square inch). 5. Residual pressure (in pounds per square inch). 6. Flowing (in gallons per minute). 7. Elevation of hydrant(s) tested.

1.05 SYSTEM DESIGN

A. Design sprinkler system under direct supervision of a R.M.E.’s (Responsible Managing Employee) experienced in design of this Work and licensed in the State of Texas. All design submittal documents and Shop Drawings shall bear the R.M.E.’s signed and dated registration number. All documents shall be reviewed by an engineer who is registered by the Texas State Board of Registration for Professional Engineers in fire protection specialty or is experienced in hydraulic design and fire sprinkler system installation. The system shall be installed by a firm having minimum five years experience regularly engaged in the design and installation of automatic fire protection systems in accordance with requirements of the National Fire Protection Association and the State of Texas Fire Marshal’s office. A short resume shall be submitted to the Texas Department of State Health Services, along with working drawings, if registration is not in fire protection specialty.

1.06 QUALITY ASSURANCE

A. Underwriters Laboratories (U.L.) listed and Factory Mutual (F.M.) approved material.

B. Comply with local fire department standards for hose threads, operating nuts and accessories for hydrants and siamese connections.

C. The automatic sprinkler system installer shall provide a permanently attached nameplate located at the controlling alarm, indicating the location and the discharge densities over designed areas of PRE-ACTION SPRINKLER SYSTEM 21 13 19 - Page 2 Memorial Hermann Best Practices July, 2013

discharge including gallons per minute and residual pressure, and hose stream demand supplied by the sprinkler piping.

1.07 SUBMITTALS AND SHOP DRAWINGS

A. Prepare complete detailed working drawings and calculations for fire protection system.

B. Submit drawings and calculations to a professional engineer, licensed in the State of Texas and experienced in hydraulic calculations and sprinkler system design and installation, for review and approval. Also submit drawings and calculations to the Owner's property insurance provider for review and approval.

C. After review and approval of detailed working drawings, calculations, and installation by professional engineer, submit copy of letter of approval to the Texas Department of State Health Services, Health Facility Licensure and Certification Division, stating system has been reviewed and approved by the professional engineer, complies with the requirements of NFPA 13, and is installed in accordance with the detailed a working drawings. In addition to the aforementioned approvals, obtain approval from the Owner's property insurance provider and local authorities as required.

D. After receiving approval of the detailed working drawings and calculations from the Owner's insuring agency, local authorities and professional engineer, submit shop drawings and calculations form for review prior to installation. Submitted shop drawings shall bear the local authorities approval stamp and shall include reviewing professional engineer's approval stamp.

E. Submitted shop drawings shall bear the reviewing professional engineer, local fire marshal's and Owner's insuring agents approval stamp.

F. Sprinkler installation shall not commence prior to approval by the listed authorities.

G. Upon completion of the fire sprinkler system installation, an on-site inspection shall be conducted by the engineer to verify that the installation is in accordance with the design and NFPA 13 requirements.

H. Upon completion of required corrections, if any, verified by the engineer, written certification by the reviewing professional engineer stating that the fire sprinkler system and the water supply (source shall be indicated) is installed in accordance with NFPA 13 requirements shall be provided. The certification shall state that the sprinkler system design and installation comply with NFPA 13 (year of edition must be given) requirements. Approval of the fire sprinkler system (both design and installation) is mandatory before permission to occupy the area protected by the fire sprinkler system can be given by the state. 1. Include the manufacturer's product data with shop drawings as required Part 2 - PRODUCTS

1.08 APPLICABLE CODES (LATEST ADOPTED EDITION)

A. NFPA 13: Sprinkler System Installation

PART 2 - PRODUCTS

2.01 COMPONENTS

A. Supply and install a preaction sprinkler system assembly coordinated with the releasing panel provided under Division 28. The unit shall be UL listed and FM approved. All system components shall be tested and listed for their use together.

B. The system shall be a double interlocked pre-action with electric-pneumatic release containing all hydraulic, and pneumatic components required for the control of a pre-action system. The system shall be fully interfaced with the releasing panel provided under Division 28. 1. Viking Deluge Valve Model E, complete with Schedule 40 galvanized steel Viking EZ- Trim rated at 250 psi. 2. Release trim with solenoid valves, pneumatic actuator and each supervisory device required.

C. Air Supply: Air compressor and supervisory trim shall be provided and adjusted for the selected configuration. The air supply must be regulated and of the proper size in order to be able to restore normal system air pressure within 30 minutes. . D. System Drain: The drain collector of the system shall be connected to an Open Drain. The drain piping shall not be restricted or reduced and shall be of the same diameter as the drain collector. Manifolding of multiple units is permitted provided the manufacturer’s recommendations are carefully followed and complied with.

E. See Section 21 13 13 for the following: 1. Valves 2. Piping and Fittings 3. Hangers and Supports 4. Sprinkler Heads 5. Switches 6. Pipe Installation

F. See electrical and fire alarm drawings and specifications for electrical requirements for pre-action sprinkler system.

G. Detection: Division 28.

PART 3 - EXECUTION

3.01 COORDINATION

A. Sprinkler contractor shall coordinate installation of mains and sprinkler heads with all other disciplines.

B. Coordinate sprinkler heads with signs, diffusers and smoke or detecting system equipment.

3.02 INSTALLATION

A. Provide and install system as shown on contract drawings.

B. All work shall meet N.F.P.A. and state and locate code requirements.

C. Contractor shall provide Owner with technical data sheets, operation and maintenance instructions booklet. Provide one booklet at main riser pre-action sprinkler riser.

END OF SECTION

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