HIGH-EXPANSION FOAM GENERATORS

Transcription

1 HIGH-EXPANSION FOAM GENERATORS INSTALLATION, OPERATION, AND MAINTENANCE MANUAL One Stanton Street Marinette, WI , USA Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision date and are subject to change without notice. Part No

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3 ANSUL High-Expansion Foam Generators FOREWORD 2018-MAR-22 REV. 01 This manual is intended for use with the ANSUL High-Expansion Foam Generator System. Those who install, operate, recharge, or maintain these fire suppression systems should read this entire manual. Specific sections will be of particular interest depending on one s responsibilities. Design, installation, recharge, and maintenance of the system must conform to the limitations detailed in this manual and performed by an individual who attended an ANSUL training program and became trained to design, install, recharge, and maintain the ANSUL system(s). Fire suppression systems are mechanical devices. The devices need periodic care to provide maximum assurance the system will operate effectively and safely. Inspection frequency shall be performed monthly, or sooner, depending on operating and/or environmental conditions. Maintenance shall be performed semi-annually or sooner, depending on operating and/or environmental conditions. This ANSUL systems manual is limited to the uses herein described. For other applications, contact your local Authorized ANSUL Distributor, Domestic District Manager, International Area Manager, or Johnson Controls Technical Services Department. Note: The converted metric values in this manual are provided for dimensional reference only and do not reflect an actual measurement. Part Number: Date: 2018-MAR-22 ANSUL and the product names listed in this material are marks and/or registered marks. Unauthorized use is strictly prohibited. * TEFLON and LIFE SAFETY CODE are trademarks of their respective owners.

4 EXPLANATION OF SAFETY ALERTS REV MAR-22 ANSUL High-Expansion Foam Generators p! DANGER Indicates a hazardous situation in which a person will experience serious personal injury or death if the situation is not avoided.! WARNING Indicates a hazardous situation in which a person could experience serious personal injury or death if the situation is not avoided.! CAUTION Indicates a hazardous situation in which a person could experience minor or moderate personal injury if the situation is not avoided. CAUTION Addresses practices not related to personal injury, such as a system part malfunctioning, property damage, or system failure. NOTICE Addresses general practices or observations related to system function that are not related to personal injury.

5 ANSUL High-Expansion Foam Generators REVISION RECORD 2018-MAR-22 REV. 0 PAGE 1 DATE PAGE REV. NO MAR MAR MAR MAR MAR MAR DATE PAGE REV. NO MAR MAR MAR MAR MAR MAR MAR MAR MAR MAR MAR New 2018-MAR New 2018-MAR MAR MAR MAR MAR MAR MAR MAR MAR MAR MAR New 2018-MAR MAR LEGEND FOR PAGES WITH REVISION INDICATORS: Indicates revised technical information. Indicates change in page sequence (located at top of page, left of header).

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7 ANSUL High-Expansion Foam Generators TABLE OF CONTENTS 2018-MAR-22 REV. 01 PAGE TOC-1 SECTION PAGE 1 GENERAL INFORMATION Introduction SYSTEM DESCRIPTION System Description SYSTEM SCHEMATICS System Schematics SYSTEM DESIGN High-Expansion Foam Systems Design 4-1 Introduction 4-1 Installation 4-1 Piping Materials 4-1 Design Information 4-1 Typical Requirements for HEF Generators 4-3 System Local Application System 4-5 Aircraft Hangars Design 4-5 Aircraft Hangars Classifications 4-5 Fire Protection Options 4-6 Hangar Fire Protection Design Requirements 4-6 Foam System Application 4-7 Supplementary Protection Systems 4-7 Detection and Actuation Requirements 4-8 Alarms and Signaling Requirements 4-8 Interconnection Considerations INSTALLATION Installation INSTALLATION DRAWINGS Installation Drawings 6-1 SECTION PAGE 7 OPERATION Operation Procedures RESTORATION System Restoration 8-1 Restoration Recommendations INSPECTION AND MAINTENANCE Inspection and Maintenance TROUBLESHOOTING Troubleshooting TESTING PROCEDURES AND TRAINING Testing Procedures and Training 11-1 Recommendation and Best Practices for 11-1 Managing High-Expansion Foam Discharges Chemical Exposure Consideration 11-1 Discharge Test Recommendation 11-1 Disposal and Environmental Consideration 11-2 Recommendations for Containment, Overhaul 11-2 Cleanup, and Disposal 12 COMPONENTS LIST Components List REFERENCE Reference 13-1 Product Warranty APPENDIX A FM REQUIREMENTS APPENDIX B UL PERFORMANCE DATA

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9 ANSUL High-Expansion Foam Generators SECTION 1 GENERAL INFORMATION 2018-MAR-22 REV. 01 PAGE 1-1 INTRODUCTION This manual provides operating and maintenance information for ANSUL equipment only. It is the responsibility of the designer of record to meet applicable codes, National Fire Protection Agency (NFPA) recommendations, and insurance underwriter requirements. This manual provides general descriptions and typical characteristics of high-expansion foam (HEF) generators and systems. For information on related equipment such as bladder tanks, pumps, piping and valves, refer to their respective manuals. Carefully review all relevant manuals and information before operating a HEF system. For warranty information about ANSUL HEF generators systems, refer to the general terms and conditions for Johnson Controls available on the website: WARNING Like any piece of complex equipment, the high-expansion foam generators systems perform as designed only if used and serviced in accordance with the manufacturer s instructions. All individuals operating or servicing the apparatus must carefully read this manual. p! DANGER Rotating parts can catch hands, feet, and/or clothing. To reduce the risk of injury, read the manuals before operating the high-expansion foam generator equipment, keep shields in place while equipment is operating and stay clear of moving parts, and shut off equipment before servicing. p! DANGER Under no circumstances should personnel enter an area during a high-expansion foam discharge to retrieve equipment, tools, or other items. Personnel should not enter a foam filled area or become immersed in foam because the foam can make hearing difficult, obstruct visibility, inhibit normal breathing, and possibly lead to disorientation.! WARNING Pump, piping, and other high-expansion foam system components containing water should be protected from freezing, which could damage the system, resulting in injury or flooding. Permitting a pump, piping, or other high-expansion foam system component to freeze will void its warranty.! WARNING High-expansion foam systems rapidly create large volumes of foam. In the event of an unplanned discharge of a high-expansion foam system, whether due to a fire or accidental release, it is imperative that all personnel immediately evacuate the discharge area.! WARNING Foam can create slippery surfaces. High-expansion foam concentrates and high-expansion foam solutions can make floors and other surfaces slippery. Use caution when evacuating areas during a foam discharge or during emergency response, overhaul, and cleanup operations where foam has been present.! WARNING Exits should be kept clear at all times. Exits and evacuation routes out of areas protected by a high-expansion foam system should be kept clear and free of obstruction at all times. Per NFPA 409, Standard on Aircraft Hangars, exits and evacuation routes from an aircraft hangar should comply with the NFPA 101, LIFE SAFETY CODE*.

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11 ANSUL High-Expansion Foam Generators SECTION 2 SYSTEM DESCRIPTION 2017-JUL-25 REV. 0 PAGE 2-1 SYSTEM DESCRIPTION HEF Generators The ANSUL HEF generators system consists of the following components: Foam proportioning system HEF concentrate HEF generator Detection and control system Intake and exhaust ventilation (optional) The HEF generator is powered by a foam solution (a mixture of foam concentrate and water) driving a hydraulic (water) motor, and requires no outside source of power. Refer to the product data sheet JET-X High-Expansion Foam Generators (Form No. F-93137, latest revision) for more information. Foam Concentrate High-Expansion foam generators use ANSUL JET-X high-expansion foam concentrate. Refer to the product data sheet JET-X 2% High-Expansion Foam Concentrate (Form No. F , latest revision) and JET-X 2 3/4% High-Expansion Foam Concentrate (Form No. F-93139, latest revision) for further details. Automatic Roof Door Vent The automatic roof door vents are actuated by a minimum of 40 psi (2.76 bar) water or foam solution pressure. The vent can also be actuated by a fusible link or manually opened. Refer to the product data sheet ANSUL Automatic Roof Door Vents (Form No. F , latest revision) for further details.

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13 ANSUL High-Expansion Foam Generators SECTION 3 SYSTEM SCHEMATICS 2017-JUL-25 REV. 0 PAGE 3-1 SYSTEM SCHEMATICS Figure 3-1 represents the system piping and valving arrangements for the ANSUL High-Expansion Foam Generator system. FOAM SOLUTION BLADDER VENT VALVE TANK SHELL VENT VALVE FOAM CONCENTRATE SIGHT GLASS WATER INTO BLADDER TANK FOAM SOLUTION BLADDER TANK WITH HIGH-EXPANSION FOAM CONCENTRATE HIGH-EXPANSION FOAM GENERATORS (TYPICALLY LOCATED IN 2 PLACES) TANK SHELL DRAIN/FILL VALVE SIGHT GLASS VALVE WATER SUPPLY HYDRAULIC ACTUATED DOOR INTAKE (TYPICALLY LOCATED IN 2 PLACES) BLADDER DRAIN/FILL VALVE MASTER SHUTOFF VALVE HYDRAULIC ACTUATED BALL VALVE, N.C. MANUAL BALL VALVE, N.O. MANUAL BALL VALVE, N.C. SWING CHECK VALVE DELUGE VALVE PRESSURE GAUGE OS&Y VALVE PROPORTIONER SENSING LINES GROOVE COUPLING PROCESS SYMBOLS FIGURE 3-1 SYSTEM SCHEMATIC

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15 ANSUL High-Expansion Foam Generators SECTION 4 SYSTEM DESIGN 2018-MAR-22 REV. 01 PAGE 4-1 HIGH-EXPANSION FOAM SYSTEMS - DESIGN Introduction High-expansion foam (HEF) concentrate and water are mixed in the correct proportion by various methods to form a foam solution. This solution flows to the HEF generator with a water powered motor. It is then discharged through a nozzle onto a fine mesh stainless steel screen. A rotating fan (powered by the water motor) in the generator forces large volumes of air through the stainless steel screen as the foam solution is sprayed onto it. The air mixes with the foam solution to form a large discharging mass of foam solution. This clean highly expanded foam mass quickly fills large areas flowing around obstacles and flooding every void smothering the fire quickly and effectively. The output of an ANSUL HEF generator in a fixed installation depends on which generator is selected. These generators are available in a wide output range (specified in cubic feet per minute) at various foam solution inlet pressures. When multiple units are used an almost limitless output can be achieved. The HEF system is used for fire suppression of solid fuel or flammable liquid fires in areas where the expanded foam can be contained. Examples of applications include: Ship holds Aircraft hangars Hazardous material/waste storage areas Flammable liquid packaging areas Flammable liquid drum storage Warehouse areas such as rolled paper, tire storage, in rack storage of combustible materials, and boat storage HEF systems have been installed as added protection for Liquid Natural Gas (LNG) facilities for fire suppression and for controlling vapors released from an accidental LNG spill. Blanketing spills with HEF is an effective method for reducing and controlling fire intensity and decreasing LNG vapor generation. Installation The HEF system must be designed and installed in strict accordance with NFPA 11 (2002 or later) standard for low-, medium-, and high-expansion foam and any guidelines established by the Authority Having Jurisdiction or insurance provider. Johnson Controls recommends a contractor having previous experience in installing fixed fire protection foam systems install the HEF system. Upon installation, the HEF system components should be located and arranged so that any recharging, inspection, testing or general maintenance will cause a minimum disruption to the fire protection system. The HEF Generator may be installed in either a vertical or a horizontal position. When mounting a generator in a fixed location, care should be taken so as not to distort the cylinder section of the generator housing as this could interfere with the rotation of the fan/ motor assembly. It is imperative that the generator be firmly braced to ensure there is no flex or movement when the system is in operation. Piping Materials Stainless steel 304, 316, brass, galvanized and black steel pipe are suitable for use with foam solutions. The black steel pipe is only recommended for use with foam concentrates when the pipe is kept flooded at all times. Stainless steel pipe is suitable for use with foam concentrates at all times. Galvanized pipe cannot be used with foam concentrate. It is recommended that where threaded pipe joints are in contact with the foam concentrate or the foam solution, use a TEFLON* based pipe-joining compound or a TEFLON tape to help ensure leak tight screw fittings. Design Information Note: For aircraft hangars please see the section titled Fire Protection Options. Flooding System is a fixed foam fire protection system consisting of HEF generators, a proportioning system, foam concentrate, water supply, and the necessary interconnecting piping. This type of system is designed to discharge the expanded foam into an enclosed space, or around the hazard. The total flood system is suitable for use where there is a permanent enclosure around the hazard that is capable of holding the required amount of foam for the designed duration. For adequate protection, there should be sufficient foam concentrate to allow the system a discharge rate sufficient to cover the hazard to an effective depth before any unacceptable damage occurs. The minimum total depth of foam is to be not less than 1.1 times the height of the highest hazard being protected but in no case can it be less than 2 ft (0.61 m) above that hazard. Submergence time varies with the type of building construction and if the building has a sprinkler system. Table 4-1 provides the maximum submergence times in minutes for high-expansion foam measured from the start of foam discharge. The chart does not include submergence times when used on water miscible/polar solvent type fuels or flammable liquids having a boiling point less than 100 ºF (38 ºC). These products may require higher application rates. Please check with Technical Services at Johnson Controls for application guidelines. When used in tire storage areas, the submergence time shown reflects the area also having sprinkler protection. When certain combustible products are stored 15 ft (4.57 m) or higher, fire spread may still be rapid and the discharge times in the submergence chart may not be suitable. A faster submergence time may be more appropriate. Note: Always refer to the UL Certification Directory and the FM Approval Guide for Approved operating parameters and orientations.

16 SECTION 4 SYSTEM DESIGN PAGE 4-2 REV JUL-25 ANSUL High-Expansion Foam Generators HIGH EXPANSION FOAM SYSTEMS - DESIGN (Continued) Design Information (Continued) The foam discharge rate is to be sufficient to satisfy the foam depth requirements and submergence times allowing compensation for normal foam shrinkage, foam leakage and breakdown effects of any sprinkler discharge. The factor for compensation for normal foam shrinkage is TABLE 4-1: MAXIMUM SUBMERGENCE TIME (MINUTES) FOR HIGH-EXPANSION FOAM MEASURED FROM START OF ACTUAL FOAM DISCHARGE Hazard Flammable liquids (flash points below 100 ºF (38 ºC) having a vapor pressure not exceeding 276 kpa (40 psia) Combustible liquids (flash points of 100 ºF (38 ºC) and above)1 Low-density combustibles (i.e., foam rubber, foam plastics, rolled tissue, or crepe paper) High-density combustibles (i.e., rolled paper kraft or coated banded) High-density combustibles (i.e., rolled paper kraft or coated unbanded) Light or Unprotected Steel Construction Heavy or Protected or Fire-Resistive Construction Sprinklered Non-Sprinklered Sprinklered Non-Sprinklered Rubber tires Combustibles in cartons, bags, fiber drums Polar solvents are not included in this table. Flammable liquids having boiling points less than 100 ºF (38 ºC) might require higher application rates (see NFPA 30). 2 These submergence times might not be directly applicable to storage piled above 15 ft (4.6 m) or where fire spread through combustible contents.

17 ANSUL High-Expansion Foam Generators SECTION 4 SYSTEM DESIGN 2018-MAR-22 REV. 01 PAGE 4-3 HIGH EXPANSION FOAM SYSTEMS - DESIGN (Continued) Design Information (Continued) The compensation factor for loss of foam due to leakage around doors, windows and through unclosable openings is determined by the design engineer after proper evaluation of the structure. This factor cannot be less than 1.0. Depending on foam expansion ratio, sprinkler operation and foam depth, this factor may be as high as 1.2 for a building with all openings normally closed. Calculating Factor for Compensation of Breakdown by Sprinkler Discharge The factor for compensation of breakdown by sprinkler discharge (Rs) is determined by the following formula, or by test: R s = S x Q Where: R s = Factor for compensation of breakdown by sprinkler discharge S = Foam breakdown in cfm per gpm of sprinkler discharge. S is to be 10 cfm/gpm (0.748 cmm/lpm) Q = Estimated total discharge from maximum number of sprinklers expected to operate gpm (Lpm) Calculating Minimum Rate of Foam Discharge The formula for calculating the minimum rate of foam discharge or total generator capacity allowing for compensation of normal foam shrinkage, foam leakage and breakdown effects of sprinkler discharge is: R = (V/T + R s ) x C n x C L Where: R = Rate of discharge in cfm (cmm) V = Submergence volume in ft 3 (m 3 ) T = Submergence time in minutes R s = Rate of foam breakdown by sprinklers in cfm (cmm) C n = Compensation for normal foam shrinkage C L = Compensation for leakage All openings such as doorways, windows, etc. below the design filling depth shall close automatically before or during foam discharge when the system is activated. Discharge Duration: There shall be sufficient high-expansion foam concentrate and water to allow continuous operation of the system at the design density for 25 minutes or to generate 4 times the submergence volume, whichever is less, but in no case less than enough for a 15 minute discharge. TYPICAL REQUIREMENTS FOR A HEF GENERATOR SYSTEM The typical requirements for a HEF system for a building without a sprinkler system are: Building: Light steel, no sprinklers Size: 100 ft x 30 ft x 10 ft (30.48 m x 9.14 m x 3.05 m) Products stored: Low density combustibles, 7 ft (2.13 m) in height Cubic area to be protected: 100 ft x 30 ft x 9 ft (30.48 m x 9.14 m x 2.74 m) above height of combustibles, or 27,000 ft3 (764.6 m 3 ) Fill time: Per NFPA 11, 3 minutes Formula for system without sprinklers: R = (V/T) x C n x C L Where: V = 27,000 ft 3 (764.6 m 3 ) T = 3 minutes Cn = 1.15 CL = 1.1 (slight leakage) R = (9,000) x 1.15 x 1.1 = 11,385 cfm (322.4 cmm) 11,385 cfm (322.4 cmm) is required for this set of building requirements. Equipment List 1 x HEF generator 12,000 cfm (339.8 cmm) / 59 psi (4.07 bar) / 170 gpm (643.5 Lpm) 1 x 3 in. between flange style, ratio controller, flow range 70 gpm to 750 gpm (265 Lpm to 2,839 Lpm) 1 x 50 gallon vertical bladder tank (170 gpm x 0.02 = 3.4 gpm of 2% JET-X Foam x 15 minutes = 51 gallons of foam concentrate) 55 x gallons JET-X foam concentrate (51 gallons system fill, 4 gallons system test) Selection of swing checks and ball valves Ventilation When outside air is used for the generation of high-expansion foam, air intake and exhaust vents shall be used to allow the system to function correctly. Air Intake Requirements Air intakes for the use of outside air shall have an area greater than or equal to the flow area of the high expansion generators used. Ducting shall be designed by a qualified HVAC (Heating, Ventilation, and Air Conditioning) engineer to minimize any pressure loss. A single air intake per high expansion foam generator is typical but use of ducting to feed multiple generators from a single air intake vent is acceptable providing the flow area requirement is met.

18 SECTION 4 SYSTEM DESIGN PAGE 4-4 REV MAR-22 ANSUL High-Expansion Foam Generators TYPICAL REQUIREMENTS FOR A HEF GENERATOR SYSTEM (Continued) Ventilation (Continued) Model High-Expansion Generator Automatic Roof Vent (FM Approved)* Wall Intake Damper (Not FM Approved) Wall Relief Louver (Not FM Approved) Generator Flow Area ft 2 (m 2 ) JET-X 2A 1.5 (0.14) JET-X 5A 9.6 (0.90) JET-X 15A 13.4 (1.24) JET-X (1.24) JET-X (1.21) Vent Flow Area 48 in (1.50) 60 in (2.32) JET-X 5A 15.8 (1.47) JET-X 15/20/ (2.34) JET-X 5A 6.8 (0.63) JET-X 15/20/ (2.21) Note: Free Flow Area is the same for standard models and LNG models. * Can be utilized as intake and/or relief vents in FM Approved systems. Exhaust Vent Requirements NFPA Requirement (NFPA Edition, Section ): Venting velocity shall not exceed 305 m/min (1000 ft/min) in free air. FM Requirement (FM 5130): Per FM 5130, no backpressure shall be placed on the high expansion foam generator. To achieve this, the exhaust vent area must be greater than or equal to the generator flow area. In addition, FM Global requires compliance with NFPA 11. When specifying ventilation for a project requiring compliance with FM Global standards, calculations for both requirements must be completed and the more conservative of the two should be used. Example Calculation 1: Generator Model: JET-X 5A Quantity: 8 units at 70 psi (4.8 bar) Output: 7,632 cfm per unit (216 cmm per unit) Exhaust Vent Model: 48 in. Automatic Roof Vent 1 NFPA Air Velocity Requirement Calculation Qty. of Generators x Output Vent Area x Maximum Allowable Air Velocity 8 Generators x 7,632 cfm 16 ft 2 x 1000 ft/min * Round up quantity to four 48 in. Exhaust Roof Vents. FM Flow Area Requirement Calculation Qty. of Generators x Generator Area Vent Area 8 Generators x 9.6 ft 2 16 ft 2 ** Round up quantity to five 48 in. Exhaust Roof Vents. Example Calculation 2: Generator Model: JET-X 15A Quantity: 8 units at 70 psi (4.8 bar) Output: 19,141 cfm per unit (542 cmm per unit) Exhaust Vent Model: 48 in. Automatic Roof Vent 1 NFPA Air Velocity Requirement Calculation Qty. of Generators x Output Vent Area x Maximum Allowable Air Velocity 8 Generators x 19,141 cfm 16 ft 2 x 1000 ft/min = 3.8* = 4.8** = 9.6* * Round up quantity to ten 48 in. Exhaust Roof Vents. FM Flow Area Requirement Calculation Qty. of Generators x Generator Area Vent Area Qty. of Exhaust = Vents Required = Qty. of Exhaust Vents Qty. of Exhaust = Vents Required = Qty. of Exhaust Vents 8 Generators x 13.4 ft 2 16 ft 2 = 6.7** ** Round up quantity to ten 48 in. Exhaust Roof Vents. 1 Exhaust vent model selected for example purposes. Other sizes and styles of exhaust vents are available to fit a variety of roof or sidewall intake or exhaust venting applications.

19 ANSUL High-Expansion Foam Generators SECTION 4 SYSTEM DESIGN 2017-JUL-25 REV. 0 PAGE 4-5 LOCAL APPLICATION SYSTEM This type of system consists of a fixed foam-generating device complete with the necessary piping and foam concentrate proportioning equipment. The system is designed to protect a specific piece of equipment or discharge directly onto a potential hazard area. Local application systems can be used to protect hazards located indoors, outdoors or in partly sheltered areas. When used outdoors or in partly sheltered areas, provisions should be made to compensate for the effects of wind or other climatic conditions. Discharge Duration: Foam shall be discharged at a rate to cover the spill hazard to a depth of 2 ft (0.61 m) within 2 minutes. System must be sized for no less than 12 minutes of continuous operation. Note: For aircraft hangar design there may be additional requirement per NFPA 409, Standard on Aircraft Hangars and the Department of Defense Fire Protection Engineering Design Criteria. Aircraft Hangers - Design AIRCRAFT HANGAR CLASSIFICATIONS Considering the value of commercial and military aircraft, it has become extremely important to have a reliable fixed fire protection system in aircraft storage, servicing, maintenance and paint facilities. The HEF generator fire protection system is designed to provide a reasonable degree of protection for any Class A or B type fire. Most fire protection systems for aircraft handling facilities are designed in accordance with NFPA 409, Standard on Aircraft Hangars, or the Department of Defense Unified Facilities Criteria - Aircraft Maintenance Hangars (UFC ). Per NFPA 409 there are four basic aircraft hangar designs that are classified: Group I Aircraft Hangar Group II Aircraft Hangar Group III Aircraft Hangar Group IV Aircraft Hangar GROUP I AIRCRAFT HANGAR A hangar having at least one of the following features and operating conditions: An aircraft access door height over 28 ft (8.5 m) A single fire area in excess of 40,000 ft 2 (3,716 m 2 ) Provision for housing an aircraft with a tail height over 28 ft (8.5 m) Provision for housing strategically important military aircraft as determined by the Department of Defense GROUP II AIRCRAFT HANGAR A hangar having an aircraft access door height of 28 ft (8.5 m) or less can be classified as a Group II aircraft hangar. The fire area and type of hangar are defined as follows: Type of Construction Single Fire Area (Inclusive) ft 2 (m 2 ) Type I 443 and ,000-40,000 (2,787-3,716) Type II (222) 20,001-40,000 (1,858-3,716) Type II (111), III (211), and IV (2HH) 15,001-40,000 (1,394-3,716) Type II (000) 12,001-40,000 (1,115-3,716) Type III (200) 12,001-40,000 (1,115-3,716) Type V (111) 8,001-40,000 (743-3,716) Type V (000) 5,001-40,000 (465-3,716) GROUP III AIRCRAFT HANGAR The classification criteria for a Group III aircraft hangar include: An aircraft access door height of 28 ft. (8.5 m) or less A single fire area that measures up to the maximum square footage permitted for specific types of construction per NFPA 409 Table The fire area and type of hangar are defined as follows: Type of Construction Maximum Single Fire Area ft 2 (m 2 ) Type I 443 and 332 2,787 (30,000) Type II (222) 1,858 (20,000) Type II (111), III (211), and IV (2HH) 1,394 (15,001) Type II (000) 1,115 (12,001) Type III (200) 1,115 (12,001) Type V (111) 743 (8,000) Type V (000) 465 (5,001) Note: Building construction types are defined in NFPA 220, Standard on Types of Building Construction. GROUP IV AIRCRAFT HANGAR A Group IV aircraft hangar may be a member-covered, ridge, steel or frame structure.

20 SECTION 4 SYSTEM DESIGN PAGE 4-6 REV JUL-25 ANSUL High-Expansion Foam Generators LOCAL APPLICATION SYSTEM (Continued) Aircraft Hangers - Design (Continued) FIRE PROTECTION OPTIONS Once the aircraft hangar classification has been determined, a suitable fire protection system can be established. There are four types of foam fire protection systems suitable for the protection of an aircraft hangar bay. Overhead Foam/Water Sprinkler System Foam Monitor System Foam Hand Hose Line System High-Expansion Foam System These systems may be used separately or they may be combined. OVERHEAD FOAM/WATER SPRINKLER SYSTEM An overhead foam water sprinkler system can be one of the following types: Closed Head Preaction Standard Wet Pipe Deluge System If used with any protein based type foam concentrate, the foam water sprinkler heads must be air-aspirating. When used with an aqueous film-forming foam (AFFF), the sprinkler heads can be standard non-air aspirating. When using protein based foam concentrates, use the appropriate application rate as noted in NFPA 409 for each hangar type. AFFF systems shall use an application rate of 0.16 gpm per square foot of floor area. MONITOR SYSTEMS Monitor systems may be one of two types: Oscillating Fixed nozzle type OSCILLATING MONITOR SYSTEMS Oscillating monitor systems consist of monitors that automatically oscillate from side to side when discharging foam onto the hangar floor. They are normally preset to oscillate over a given arc to provide required flow rate over a specific area. FIXED MONITOR SYSTEMS Fixed monitor systems have nozzles that are typically mounted on a manifold or as single units approximately 3 ft (0.91 m) above the hangar floor. They are preset for angle of elevation and discharge pattern to achieve the best possible stream pattern and range while keeping the stream low enough to flow under the wing of any aircraft. This type of monitor system is often used where aircraft or maintenance equipment in the hangar could interfere in the normal operation of the oscillating type monitor. FOAM HAND HOSE LINE SYSTEMS Foam hand hose line systems are required as supplementary protection in Group I and II Aircraft Hangars. HIGH-EXPANSION FOAM SYSTEMS High-expansion foam systems use a high-expansion generator to mix foam concentrate with air and water creating large volumes of foam for an effective foam blanket. Hangar Fire Protection Design Requirements GROUP I HANGAR FIRE PROTECTION DESIGN REQUIREMENTS Other than those housing unfueled aircraft, there are three recommended options for protecting Group I hangars: A foam-water overhead deluge system. If the hangar houses single aircraft having wing areas greater than 3000 ft 2 (278.7 m 2 ) a supplementary system consisting of a either a low-level low-expansion system or a low-level high-expansion foam system shall be provided covering the floor area beneath the aircraft being protected. Both AFFF systems shall be designed for 10 minute operation. The system shall achieve control of the fire within the protected area in 30 seconds of the system actuation, and suppression of the fire within 60 seconds. A combination of a closed-head water sprinkler system and an automatic low-level low-expansion foam system. A combination of a closed-head water sprinkler system and an automatic low-level high-expansion foam system. If the foam-water sprinkler system is also used for column fire protection within the hangar in lieu of the column having a fire resistive rating of not less than 2 hours, allowances must be made for the required additional foam concentrate. A reserve supply of foam concentrate must be directly connected into the system and be readily available if required. Foam-water hand hose systems shall be installed if the aircraft DOES NOT have drained and purged fuel tanks. GROUP II HANGAR FIRE PROTECTION REQUIREMENTS Other than those housing unfueled aircraft, there are four recommended options for protecting Group II hangars: In accordance with the requirements for a Group I Hangar. A combination of a closed-head water sprinkler system and an automatic low-level low-expansion foam system. A combination of a closed-head water sprinkler system and an automatic low-level high-expansion foam system. A closed-head foam-water sprinkler system. GROUP III HANGAR FIRE PROTECTION REQUIREMENTS Fixed fire protection systems are not normally required. If any hazardous operations such as fuel transfer, welding, painting, torch cutting, etc. are performed in a Group III Hangar, the hangar should be protected as per a Group II Aircraft Hangar. GROUP IV HANGAR FIRE PROTECTION REQUIREMENTS Where the hangar fire area is greater than 12,000 ft 2 ( m 2 ) and housing fueled aircraft, the design requirements shall be in accordance with any of the following options: A low-expansion foam system A high-expansion foam system An automatic sprinkler protection system ADDITIONAL REQUIREMENTS FOR HANGARS Fire extinguishers must be distributed throughout the aircraft hangar per NFPA 10 Standard for Portable Fire Extinguishers.

21 ANSUL High-Expansion Foam Generators SECTION 4 SYSTEM DESIGN 2017-JUL-25 REV. 0 PAGE 4-7 AIRCRAFT HANGERS - DESIGN (Continued) Foam System Application OVERHEAD PRIMARY PROTECTION SYSTEMS Discharge duration of 10 minutes Application rate: gpm per sq. ft for non-aspirating discharge devices using AFFF solution gpm per sq. ft for air-aspirating discharge devices using protein foam, fluoroprotein foam or AFFF solution A reserve supply of foam concentrate should be directly connected to the system and be readily available. If the foam concentrate is injected into the water supply by a foam pump, two pumps are required - one main, and one reserve, either of which can provide the necessary supply of foam concentrate at the design rate. CALCULATING PRIMARY FOAM QUANTITY 1. Use the following formula to determine the foam solution discharge rate: Foam Solution Discharge Rate = Floor Area x Application Rate Note: The foam solution discharge rate is required to determine the proportioner size: 2. Calculate the foam concentrate quantity using the following formula: Quantity = Foam Solution Discharge Rate x 10 Minutes x Concentrate % * x 1.15 (15% Overage) * Concentrate % is expressed as: 0.01 for 1% concentrates, 0.03 for 3% concentrates, 0.06 for 6% concentrates, etc. Note: The foam concentrate supply must be based upon two separate calculations (demand calculation and supply calculations). The supply calculation is not normally available at the preliminary system design stage. It is recommended that a 15% overage be included to compensate for this unknown factor. The 15% overage is based upon the maximum variance allowed between the lowest density and highest density sprinkler within an individual sprinkler zone. SUPPLEMENTARY PROTECTION SYSTEMS High-Expansion Foam System The generators should only be mounted at the ceiling or on exterior walls of the hangar where outside air is used to generate the foam. It is recommended that the high-expansion generators be installed so that the flow of foam on the floor is directed to areas immediately adjacent to, but not directly onto the aircraft. Please refer to the section on High-Expansion Foam Systems, page 4-1, for further information. If more than one aircraft is located within any drainage system, it is recommended that the supplementary foam monitor system be capable of effectively covering the complete floor beneath all aircraft. Note: FM Approved systems must meet the requirements as listed in FM Global Property Loss Prevention Data Sheet 7-93N.

22 SECTION 4 SYSTEM DESIGN PAGE 4-8 REV JUL-25 ANSUL High-Expansion Foam Generators DETECTION AND ACTUATION REQUIREMENTS Foam fire suppression systems may require listing or approved automatic detection devices capable of sensing and indicating, heat, smoke, and/or flames, as required by local code and installed to NFPA standards. Automatic detection devices must use a reliable source of power that meets NFPA 72. All automatic devices for fire suppression systems must include a means of immediately signaling an alert in the event of a detection device failure. ALARMS AND SIGNALING REQUIREMENTS HEF systems must include audible alarms that will alert personnel when the HEF system is operating, as well as when any supervised component of the system has failed. The appropriate type and number of alarms must be installed and must be located where they will be effective. Alarms must be sounded both before discharge and after HEF system operation. Alarms that indicate system failure must be immediate, as well as distinctive from hazard and operational alarms. Refer to detection sections of NFPA 11, NFPA 72 and NFPA 409 for detection systems and actuation devices. Follow the regulations of the Authority Having Jurisdiction (AHJ) and relevant insurance underwriters. FM requires the submission of the alarm detection system for review and approval on FM-insured locations. INTERCONNECTION CONSIDERATIONS Interconnections can be made through the alarm detection system. Considerations should be given to the requirements of NFPA 72 and insurance underwriters, based on specific job requirements and the Authority Having Jurisdiction (AHJ).

23 ANSUL High-Expansion Foam Generators SECTION 5 INSTALLATION 2018-MAR-22 REV. 01 PAGE 5-1 INSTALLATION To prepare the HEF foam generators for placement in service: 1. Verify all units and support items ordered are shipped and received. Move each unit to the desired installation location prior to removing the packaging restraints.! WARNING Moving the units on the shipping pallet with the packaging restraints removed could lead to possible shift loading, which in turn could lead to damage to the unit and/or injury to personnel. 2. Remove all cord, wrapping, and banding ties. Examine entire system and component parts for concealed shipping damage before placement or securing in place on site. 3. Lift the units into place using appropriate load rated shackles, straps, and/or chains and appropriate machines to lift the units. Take care to handle the units in a manner that prevents the painted surfaces from being scratched. NOTICE Units must never be lifted by the discharge screen, inlet guard or piping. 4. To install the HEF generators system, Tyco recommends the use of a licensed fire protection contractor with previous experience of designing and installing fixed high-expansion fire protection foam systems. The unit must be installed in accordance with the latest version of NFPA 11 or NFPA 409, and/or any guidelines established by the authority having jurisdiction where applicable. The system should be supported from the bottom (not the top) when in a horizontal position, and from the front and the rear when in a vertical position. The system must be firmly braced to ensure there is no flex or movement during operation. 5. To install the hydraulic actuated air intake and exhaust vent refer to the manufacturer s instructions or to the datasheet ANSUL Automatic Roof Door Vents (Form No. F , latest revision). The ducting necessary to connect HEF generators must provide adequate air flow, as required for each generator, and must be designed by a qualified HVAC engineer. 6. Piping for the HEF generators must comply with the current versions of NFPA 11, NFPA 13, NFPA 16 and NFPA 409. The acceptable piping materials are: Carbon steel Galvanized carbon steel (foam solution only) 304 and 316 grade stainless steel Brass There are more corrosion-resistant materials that may be used - reference Tyco Technical Bulletin Foam Systems - Acceptable Materials of Construction Technical Bulletin (Form No. T , latest revision) or contact Johnson Controls Technical Services Department for other recommended piping materials. NOTICE Galvanized carbon steel should not be used with any foam concentrate piping. All piping, fittings and valves should be appropriately rated to handle the required system pressure. Johnson Controls recommends using a TEFLON based pipe-joining compound and/or a TEFLON tape where threaded pipe joints are in contact with the foam concentrate or solution to help ensure leak-tight threaded fittings. Grooved fittings with EPDM gasket material are acceptable alternatives to threaded pipe joints. The relevant piping schedule information is described in the NFPA 11, NFPA 13, NFPA 16, and NFPA 409 standards. 7. Various techniques can be employed to install HEF generators and hydraulic air/intake/exhaust vents. Best practices, as described in NFPA 12 and NFPA 16 standards, should be employed and verified by a qualified engineering firm. For seismic bracing guidelines, see the latest version of NFPA 13.

24 SECTION 5 INSTALLATION PAGE 5-2 REV JUL-25 ANSUL High-Expansion Foam Generators NOTES:

25 ANSUL High-Expansion Foam Generators SECTION 6 INSTALLATION DRAWINGS 2017-JUL-25 REV. 0 PAGE 6-1 INSTALLATION EXAMPLES For installation details, review Figure 6-1 to Figure 6-9. FIGURE 6-1 SIDE VIEW OF FOAM GENERATOR WITH ANGLE IRON BRACKETING JET-X 15A FIGURE 6-2 TYPICAL WALL MOUNT

26 SECTION 6 INSTALLATION DRAWINGS PAGE 6-2 REV JUL-25 ANSUL High-Expansion Foam Generators INSTALLATION EXAMPLES (Continued) FIGURE 6-3 TYPICAL ROOF MOUNT HYDRAULIC ACTUATED DOOR INTAKE ROOF TOP AIR INTAKE DUCT FIGURE 6-4 FRONT VIEW OF FOAM GENERATOR WITH AIR INTAKE IN HORIZONTAL MOUNT POSITION

27 ANSUL High-Expansion Foam Generators SECTION 6 INSTALLATION DRAWINGS 2017-JUL-25 REV. 0 PAGE 6-3 INSTALLATION EXAMPLES (Continued) HYDRAULIC ACTUATED DOOR INTAKE ROOF TOP GENERATOR HOUSING STRUCTURAL SUPPORT FOAM SCREEN FOAM SOLUTION INLET AIR INTAKE DUCT FIGURE 6-5 ROOFTOP VIEW OF FOAM GENERATOR WITH AIR INTAKE IN HORIZONTAL MOUNT POSITION TOP BEAM CLAMP W/ LOCKNUT (2 PLCS) RETAINING STRAP (2 PLCS) AFCON FIG. 077 QUICK END THREADLESS BRACE FITTING STEEL BAR JOISTS 2 1/2 IN. DIA X 5 FT - 6 IN. SCHEDULE 40 TRAPEZE BAR (2) TRAPEZE BAR PER GENERATOR 2 1/2 IN. PIPE RINGS (2 PLCS) AFCON FIG. 077 QUICK END THREADLESS BRACE FITTING 2-1/2 IN. PIPE RING 1IN. SCH. 40 PIPE 1 IN. DIA SCH. 40 PIPE (TYP) 1 IN. SCH. 40 PIPE 1/2 IN. DIA ALL THREAD ROD (TYP.) 1 IN. PIPE CLAMP 1/2 IN. DIA ALL THREAD ROD (TYP.) 1/2 IN. ANGLE BRACKET 3/8 IN. X 1IN. HEX BOLT (TYP.) FOAM GENERATOR 1/2 IN. ANGLE BRACKET 3/8 IN. X 1IN. HEX BOLT (TYP.) FIGURE 6-6Z FOAM GENERATOR MOUNTING DETAILS

28 SECTION 6 INSTALLATION DRAWINGS PAGE 6-4 REV JUL-25 ANSUL High-Expansion Foam Generators NOTES:

29 ANSUL High-Expansion Foam Generators SECTION 7 OPERATION 2017-JUL-25 REV. 0 PAGE 7-1 OPERATING PROCEDURES Reference relevant portions of NFPA 11, NFPA 409 and other applicable codes and standards for operation and control of the HEF generators system. Refer to NFPA 11, NFPA 25, NFPA 409 and other applicable codes and standards for maintenance and inspection activities. To produce the rated capacity for the HEF generators system: 1. Connect the foam solution supply to the HEF generators system inlet. Foam solution supply must be free of scale, mud, dirt, etc. Use a strainer if necessary. 2. Turn on the foam solution supply. Ensure each generator is operating within the approved pressure range. Refer to data sheet JET-X High-Expansion Foam Generators (Form No. F-93137, latest revision) for performance parameters.

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31 ANSUL High-Expansion Foam Generators SECTION 8 RESTORATION 2017-JUL-25 REV. 0 PAGE 8-1 SYSTEM RESTORATION System Restoration After Discharge After foam generation, the HEF generator system inlet strainer should be cleaned and the HEF generators should be flushed, if applicable, with clean water. To flush the HEF generators, first turn off the foam concentrate isolation valve and then operate the system until clean water exits the generator. After flushing, reset the HEF generators system by following these steps: 1. Shut down the system. 2. Drain all interconnecting piping. 3. Re-setup the system for use. Note: If automatic roof vents are installed in the system, they need to be reset. Clean Up After Discharge Fresh high-expansion foam is very resilient and difficult to break down by spraying with water. However, the foam solution will drain out of the foam blanket over time, making it much easier to break down as time passes. It is recommended that discharged foam be left to drain for 3-6 hours, or overnight, before beginning cleanup efforts.! WARNING High-expansion foam concentrates and high-expansion foam solutions can make floors and other surfaces slippery. All personnel should be warned of this risk and use caution to avoid slips and falls. Disposal and Environmental Considerations The owner or operator of a facility is ultimately responsible for the proper disposal of all effluent produced. Every facility is different and it is the owner/operator s responsibility to ensure proper containment and disposal of waste water in accordance with local, state, and federal regulations. Refer to the latest version of NFPA 11, Standard for Low-, Medium-, and High-Expansion Foam, Annex E for options and best practices on containment and disposal. In general, firefighting foam waste waters are treatable in sewage treatment works. The bacteria in most wastewater treatment facilities will readily break down the components in firefighting foams as they are very similar to components in many soaps and shampoos. However, these bacteria may not be accustomed to large quantities of these components and may need to be acclimated to prevent a treatment plant upset. It is strongly recommended that the EHS department for the site, the local wastewater treatment plant, and the Authority Having Jurisdiction (AHJ) for disposal be consulted before discharging any foam solution. Restoration Recommendations CONTAINMENT An unplanned discharge, by definition, means that comprehensive containment measures are likely not to be in place. While the effectiveness of a HEF system is dependent upon keeping the foam in the area being protected, design calculations generally assume significant loss. For example, NFPA 409, Standard on Aircraft Hangars system calculations include a safety factor of 20% to account for leakage, so foam lost through openings does not degrade system performance. However, keeping as much of the foam as possible in the protected area is desirable to prevent unintentional release to the environment. It is recommended that any site with a HEF system has an emergency containment plan in place. This plan should include measures to contain expanded foam to the protected space and prevent discharge of foam solution to waterways and sewers. Containment of high-expansion foam is readily accomplished by closing doors and windows. Openings that cannot be closed can be blocked with commonly available materials such as plywood, plastic sheet, or fine screen like that used for windows. NFPA 11, Standard for Low-, Medium-, and High-Expansion Foam, Annex E provides excellent information on containment scenarios and options. OVERHAUL FOLLOWING A FIRE EVENT The recommendations of the latest version of NFPA 11, Annex A, A A , should be followed during overhaul of the protected area following a fire event. Failure to follow these recommendations could lead to re-ignition or resurgence of the original fire, in addition to increasing the potential for environmental release of foam and/or unnecessary property damage. As noted in Annex A of NFPA 11, HEF systems are typically designed with the intent of rapidly controlling a fire in order to minimize total property damage from the fire, and not necessarily to extinguish it. Unless it is known with certainty that there is no fire and there are no personnel in the protected space, special care should be taken to ensure that overhaul operations do not compromise the fire suppression being provided by the foam blanket. CLEAN UP AND DISPOSAL FOLLOWING A FIRE EVENT The cleanup and disposal recommendations in the event of an accidental discharge, described above, also apply to discharges following a fire event, with additional attention given to fuel contamination. A discharge in a fire situation may produce wastewater contaminated with fuel that must be disposed of properly. Care should be taken to ensure that wastewater is free of fuel contamination prior to discharge. NFPA 11, Annex E, E.6 provides information and guidance on fuel separation from foam-water solutions.

32 SECTION 8 RESTORATION PAGE 8-2 REV JUL-25 ANSUL High-Expansion Foam Generators NOTES:

33 ANSUL High-Expansion Foam Generators SECTION 9 INSPECTION AND MAINTENANCE 2018-MAR-22 REV. 01 PAGE 9-1 INSPECTION AND MAINTENANCE CAUTION Prior to any inspection and maintenance activities, de-energize and lock-out the system according to site procedures. HEF generator system should be inspected semi-annually and should be maintained on a regular schedule by trained or certified technicians. The HEF generators system water motor should be checked for free rotation annually and the nozzle inspected for visible clogging. Fan rotation can be checked by reaching through the fan guard with a slim screwdriver with a 6-inch or longer blade and rotating the fan. Johnson Controls recommends the HEF generators system be operated with water annually to verify full rotation and flow. The generator motor should be greased as needed (applicable to JET-X 27 model only) by removing the rear guard screen and lubricating each of the four grease fittings with approximately 2 ounces of lithium-based NLGI No. 2 Grease, such as one of the following suggested grease products: Amoco Amolith EP2 Atlantic Richfield Litholine EP2 Exxon Ronex MP Mobil Oil Mobilith AW2 Shell Alvania EP2 Chevron SRI NLGI 2 After greasing, wipe off any grease that has leaked out and rotate the fan to work in the new grease. Reinstall the guard screen upon completion. Refer to the inspection checklist in NFPA 25 for inspection and maintenance activities (see Section 13, Reference ).