Chapter 9Please read chapter 9. Please review, know and understand the terms related to fire protection page 284. Know the Classifications of Fires 9.1.1 Know Classification of Hazards 9.1.2 Know the Use or Occupancy 9.1.4 Void sections 9.7.7 through 9.7.9. Study the remainder of the chapter See additional reading CSI specifications Article - The Evolution of Modern Automatic Fire Sprinklers Commercial Buildings CSI Division Includes: Electrical Piping Equipment Controls Detection of fire and smoke Suppression CSI Division Numbers Division 21 Fire Suppression (new) 21 10 00 Water – Based Fire.Suppression Systems 21 13 00 Fire-Suppression Sprinkler Systems 21 13 13 Wet-Pipe Sprinkler Systems 21 13 16 Dry-Pipe Sprinkler Systems 21 13 19 Preaction Sprinkler Systems 21 13 23 Combined Dry-Pipe and Preaction Sprinkler Systems 21 13 26 Deluge Fire-Suppression Sprinkler Systems 21 13 29 Water Spray Fixed Systems 21 13 36 Antifreeze Sprinkler Systems 21 13 39 Foam-Water Systems . Old CSI Fire Protection System (See separate readings – Web Site) Division Cabinets 10520 Fire Extinguishers & . Old CSI Fire Protection System (See separate required readings – Web Site) Division 15000 Mechanical General Provisions Division 15300 Fire Protection Division 16722 Fire Alarm System . Making sure the various Contract Documents coincide Shop Drawing Specifications Review Coordination . Section 15000 . and which are normally furnished on installations of this type. the systems will be turned over to the Owner complete and ready for safe.MECHANICAL GENERAL PROVISIONS Each specification section within their respective Division shall be coordinated with all other sections in that division for related work. The Contractor shall be obliged to furnish and install all such items normally included on systems of this type. which while not mentioned directly herein are obviously essential to the installation and operation of the systems. or shown on the drawings. efficient operation. The project documents contemplate the complete installation of the systems described herein. . so that at the conclusion of the construction. duets. For exact building layout. distances. dimensions and building materials used Contractor shall refer to Architectural Drawings.. duct fittings and offsets. The Contractor shall recognize that the Contract Documents are diagrammatic in showing certain physical relationships that must be established within the mechanical and electrical work. Mechanical drawings shall not be used for general construction dimensions or for type of material used for general construction. This Contractor shall be responsible for work fitting in place without conflict with other trades. all rises. and in its interface with other work including utilities and that such establishment is the exclusive responsibility of the Contractor. The Contractor shall agree to provide and install the necessary piping.General: Refer to the Division 1 sections for general coordination requirements applicable to the entire work. and other specialties to suit such conditions without additional cost to the Owner. Because the drawings are diagrammatic and on a small scale. elevations and existing conditions before starting work. offsets. drops. fittings. have not been shown. valves. This Contractor shall examine the locations and verify all measurements. etc. where proper planning could avoid interference. . False Ceilings Tight spaces . . . High Rise Buildings Determined by length of fire ladder Around 75 feet Buildings constructed as high rise 50 to over 100 floors and there designs are coordinated by the local fire departments and fire marshals. Consideration for interior materials is paramount Codes and structural components need to meet National Fire Codes. Types of Sprinkler Systems �Wet Sprinkler System �Dry Sprinkler System �Deluge Sprinkler System �Pre-Action Sprinkler System . Wet pipe systems Wet pipe sprinkler systems Most installed Most reliable Simple Only operating components being the automatic sprinklers An automatic water supply provides water under pressure to the system piping. . Wet Systems �Water is in branch lines and at the sprinkler heads at all times �Wet Systems cannot be in areas that may freeze �Water pressure must be maintained at all times �Water Pumps are put in place to keep water pressure at a certain PSI �There is no delay in time that water is put on the fire �Require the least amount of maintenance . in parking garages. Dry pipe systems are most often used in unheated buildings.Dry pipe systems Dry pipe systems installed where temperature will freeze water in a wet pipe system. in outside canopies attached to heated buildings . the air is released from the piping. and water is released . so that water can not be introduced into the system. and stops holding down the valve that was holding the water back.Dry Sprinkler System �Require Air Pressure instead of water in the Branch Lines �The Air Pressure holds down a Clapper Valve. unless the air pressure is lost �Used in areas that may freeze �An air compressor keeps a constant pressure in the system �When a Fire releases a sprinkler head. . �Might take up to 60 seconds to get water on the fire. and a little bit of water.Dry Sprinkler Systems �Standpipes are used in stairwells to have a water way established for hand lines. depending on how big the system is. �These systems have a high maintenance cost. due to corrosion in the pipe with only air. Dry Sprinkler . A fusible link sprinkler head has a two-part metal element that is fused by a heatsensitive alloy. Water is only released by sprinkler heads where the ambient temperature reaches a specified level .Fusible Link Sprinklers vs. Glass Bulb Sprinklers All wet-pipe sprinklers are held closed by either a fusible link or a glass bulb that contains a heat-sensitive liquid. . This glass bulb holds the pip cap in place. the liquid expands causing the glass bulb to break. When the ambient temperature of the liquid reaches a certain level. Glass bulb sprinkler heads have a small glass reservoir that holds a heat-sensitive liquid. which allows the pip cap to fall away releasing water. Deluge �Deluge Valves are used in special areas �Sprinkler heads are open at all times �Used in High Hazard areas �Deluge Valve opens during a smoke or heat detection �Deluge systems are needed where high velocity suppression is necessary . . . . Designer type of sprinkler heads. Painting? . . . . . 000 types of sprinkler heads available for designers Based On: System Type Activation Temperature Orifice Size Thread Size Coverage Finish Fusible Type . Over 50. Types of Sprinkler Heads Pendants Uprights Sidewalls Concealed Special Coverage . Pendant s . . Uprights . . Sidewalls Sidewalls . . Concealed . . Special Coverage . Foam Water Fire Sprinkler System Special application system Discharging a mixture of water and low expansion foam concentrate Used with special hazards occupancies associated with high challenge fires flammable liquids airport hangars. . . . . . PBDE’s Furniture Clothing Electronics .