Fire_Detection_&_Alarm_System_(Zone_Type)_Section_28_31_00_00_10.pdf

28 31 00.00 10-1

SECTION 28 31 00.00 10

FIRE DETECTION AND ALARM SYSTEM, (ZONE TYPE)

PART 1 GENERAL

1.1 REFERENCES

1.1.1 The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only. Unless other wise noted, the latest published version and/or revision shall be used.

1.1.1.1 AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

a. ANSI S3.41 Audible Emergency Evacuation Signal (ASA 96)

1.1.1.2 FM GLOBAL (FM)

a. FM P7825a Approval Guide Fire Protection

1.1.1.3 INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

a. IEEE C62.41.1 IEEE Guide on the Surges Environment in Low-voltage (1000V and Less) AC Power Circuits

b. IEEE C62.41.2 IEEE Recommended Practice on Characterization of Surges in

Low-voltage (1000V and Less) AC Power Circuits

1.1.1.4 NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

a. NFPA 1221 Installation, Maintenance and Use of Emergency Services

Communications Systems

b. NFPA 70 National Electrical Code

c. NFPA 72 National Fire Alarm Code

d. NFPA 90A Standard for the Installation of Air Conditioning and Ventilating

Systems

1.1.1.5 U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

a. 47 CFR 15 Radio Frequency Devices

1.1.1.6 UNDERWRITERS LABORATORIES (UL)

a. UL 1242 Standard for Electrical Intermediate Metal Conduit – Steel

b. UL 1971 Signaling Devices for the Hearing Impaired

c. UL 228 Door Closers-Holders, With or Without Integral Smoke

Detectors

d. UL 268 Standard for Smoke Detectors for Fire Alarm Signaling Systems

e. UL 268A Smoke Detectors for Duct Application

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f. UL 38 Standard for Signaling Boxes for Fire Alarm Systems

g. UL 464 Standard for Audible Signal Appliances

h. UL 521 Heat Detectors for Fire Protective Signaling Systems

i. UL 6 Standard for Electrical Rigid Metal Conduit-Steel

j. UL 632 Electrically-Actuated Transmitters

k. UL 797 Standard for Electrical Metallic Tubing – Steel

l. UL 864 Control Units and Accessories for Fire Alarm Systems

1.1.1.7 UNIFIED FACILITIES CRITERIA

a. UFC 4-021-01 Design and O&M: Mass Notification Systems

b. UFC 3-600-01 Fire Protection Engineering for Facilities

1.2 SUBMITTALS

1.2.1 Government approval may be required on any of the following items. Items requiring submittals will be listed on the Submittal Register. Provide copies of all submittals per the requirements in

Section 01 33 00, Submittal Procedures, or as listed on the Submittal Register.

1.2.2 SD-02 Shop Drawings

1.2.2.1 Detail Drawings

1.2.2.2 Detail drawings, as specified.

1.2.3 SD-03 Product Data

1.2.3.1 Storage Batteries

a. Substantiating battery calculations for supervisory and alarm power requirements. Ampere-hour requirements for each system component and each panel component, and the battery recharging period shall be included.

1.2.3.2 Low Battery Voltage

a. Voltage drop calculations for notification appliance circuits to indicate that sufficient voltage is available for proper appliance operation.

1.2.3.3 Spare Parts

a. Spare parts data for each different item of material and equipment specified, not later than 3 months prior to the date of beneficial occupancy. Data shall include a complete list of parts and supplies with the current unit prices and source of supply and a list of the parts recommended by the manufacturer to be replaced after 1 year of service.

1.2.3.4 Technical Data and Computer Software

a. Technical data which relates to computer software.

1.2.3.5 Training

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a. Lesson plans, operating instructions, maintenance procedures, and training data, furnished in manual format, for the training courses. The operations training shall familiarize designated government personnel with proper operation of the fire alarm system. The maintenance training course shall provide the designated government personnel adequate knowledge required to diagnose, repair, maintain, and expand functions inherent to the system.

1.2.3.6 Testing

a. Detailed test procedures, prepared and signed by a Registered Professional Engineer or a

NICET Level 3 Fire Alarm Technician, for the fire detection and alarm system 60 days prior to performing system tests.

1.2.4 SD-06 Test Reports

1.2.4.1 Testing

a. Test reports, in booklet form, showing field tests performed to prove compliance with the specified performance criteria, upon completion and testing of the installed system. Each test report shall document readings, test results and indicate the final position of controls. The

Contractor shall include the NFPA 72 Certificate of Completion and NFPA 72 Inspection and

Testing Form, with the appropriate test reports.

1.2.5 SD-07 Certificates

1.2.5.1 Equipment

a. Certified copies of current approvals or listings issued by an independent test lab if not listed by

UL, FM or other nationally recognized testing laboratory, showing compliance with specified

NFPA standards.

1.2.5.2 Qualifications

a. Proof of qualifications for required personnel. The installer shall submit proof of experience for the Professional Engineer, fire alarm technician, and the installing company.

1.2.6 SD-10 Operation and Maintenance Data

1.2.6.1 Operating and Maintenance Instructions

a. Technical Data and Computer Software

(1) Copies of operating instructions outlining step-by-step procedures required for system startup, operation, and shutdown. The instructions shall include the manufacturer's name, model number, service manual, parts list, and complete description of equipment and their basic operating features. Copies of maintenance instructions listing routine maintenance procedures, possible breakdowns and repairs, and troubleshooting guide.

(2) The instructions shall include conduit layout, equipment layout and simplified wiring, and control diagrams of the system as installed. The instructions shall include complete procedures for system revision and expansion, detailing both equipment and software requirements. Original and backup copies of all software delivered for this project shall be provided, on each type of media utilized. Instructions shall be approved prior to training.

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1.3 GENERAL REQUIREMENTS

1.3.1 Standard Products

1.3.1.1 Material and equipment shall be the standard products of a manufacturer regularly engaged in the manufacture of the products for at least 5 years prior to bid opening. Equipment shall be supported by a service organization that can provide service within 24 hours of notification.

1.3.2 Nameplates

1.3.2.1 Major components of equipment shall have the manufacturer's name, address, type or style, voltage and current rating, and catalog number on a noncorrosive and nonheat-sensitive plate which is securely attached to the equipment.

1.3.3 Keys and Locks

1.3.3.1 Locks shall be keyed alike. Four keys for the system shall be provided.

1.3.4 Tags

1.3.4.1 Tags with stamped identification number shall be furnished for keys and locks.

1.3.5 Verification of Dimensions

1.3.5.1 After becoming familiar with details of the work, the Contractor shall verify dimensions in the field and shall advise the Contracting Officer of any discrepancy before performing the work.

1.3.6 Compliance

1.3.6.1 The fire detection and alarm system and the central reporting system shall be configured in accordance with NFPA 72; exceptions are acceptable as directed by the Contracting Officer.

The equipment furnished shall be compatible and be UL listed, FM approved, or approved or listed by a nationally recognized testing laboratory in accordance with the applicable NFPA standards.

1.3.7 Qualifications

1.3.7.1 Engineer and Technician

a. Registered Professional Engineer with verification of experience and at least 4 years of current experience in the design of the fire protection and detection systems.

b. National Institute for Certification in Engineering Technologies (NICET) qualifications as an engineering technician in fire alarm systems program with verification of experience and current NICET certificate.

c. The Registered Professional Engineer may perform all required items under this specification.

The NICET Fire Alarm Technician shall perform only the items allowed by the specific category of certification held.

1.3.7.2 Installer

a. The installing Contractor shall provide the following: A NICET Level 3 Fire Alarm Technician shall supervise the installation of the fire alarm system. Fire Alarm Technicians to perform the

28 31 00.00 10-5 installation of the system. A Fire Alarm Technician with a minimum of 4 years of experience shall perform/supervise the installation of the fire alarm system. Fire Alarm technicians with a minimum of 2 years of experience shall be utilized to assist in the installation and terminate fire alarm devices, cabinets and panels. An electrician shall be allowed to install wire or cable and to install conduit for the fire alarm system. The Fire Alarm technicians installing the equipment shall be factory trained in the installation, adjustment, testing, and operation of the equipment specified herein and on the drawings.

1.3.7.3 Design Services

a. Installations requiring designs or modifications of fire detection, fire alarm, or fire suppression systems shall require the services and review of a qualified fire protection engineer. For the purposes of meeting this requirement, a qualified fire protection engineer is defined as an individual meeting one of the following conditions:

(1) An engineer having a Bachelor of Science or Masters of Science Degree in Fire

Protection Engineering from an accredited university engineering program, plus a minimum of 2 years' work experience in fire protection engineering.

(2) A registered professional engineer (P.E.) in fire protection engineering.

(3) A registered PE in a related engineering discipline and member grade status in the

National Society of Fire Protection Engineers.

(4) An engineer with a minimum of 10 years' experience in fire protection engineering.

1.3.8 Detail Drawings

1.3.8.1 The Contractor shall submit detail drawings prepared and signed by a Registered Professional

Engineer or a NICET Level 3 Fire Alarm Technician, consisting of a complete list of equipment and material, including manufacturer's descriptive and technical literature, catalog cuts, and installation instructions. Note that the contract drawings show layouts based on typical detectors. The Contractor shall check the layout based on the actual detectors to be installed and make any necessary revisions in the detail drawings. The detail drawings shall also contain complete wiring and schematic diagrams for the equipment furnished, equipment layout, and any other details required to demonstrate that the system has been coordinated and will properly function as a unit. Detailed point-to-point wiring diagram shall be prepared and signed by a Registered Professional Engineer or a NICET Level 3 Fire Alarm Technician showing points of connection. Diagram shall include connections between system devices, appliances, control panels, supervised devices, and equipment that is activated or controlled by the panel.

1.4 SYSTEM DESIGN

1.4.1 Operation

1.4.1.1 The fire alarm and detection system shall be a complete, supervised fire alarm reporting system.

The system shall be activated into the alarm mode by actuation of any alarm initiating device.

The system shall remain in the alarm mode until the initiating device is reset and the fire alarm control panel is reset and restored to normal. Alarm initiating devices shall be connected to initiating device circuits (IDC), Style D, in accordance with NFPA 72. Alarm notification appliances shall be connected to notification appliance circuits (NAC), Style Z in accordance with NFPA 72. A looped conduit system shall be provided so that if the conduit and all

28 31 00.00 10-6 conductors within are severed at any point, all IDC, or NAC will remain functional. The conduit loop requirement is not applicable to the signal transmission link from the local panels

(at the protected premises) to the Supervising Station (fire station, fire alarm central communication center). Textual, audible, and visual appliances and systems shall comply with

NFPA 72. Fire alarm system components requiring power, except for the control panel power supply, shall operate on 24 Volts dc.

1.4.2 Operational Features

1.4.2.1 The system shall have the following operating features:

a. Monitor electrical supervision of alarm IDC and NAC.

b. Monitor electrical supervision of the primary power (ac) supply, battery voltage, placement of alarm zone module (card, PC board) within the control panel, and transmitter tripping circuit integrity.

c. A trouble buzzer and trouble light emitting diode (LED) to activate upon a single break, open, or ground fault condition which prevents the required normal operation of the system. The trouble signal shall also operate upon loss of primary power (ac) supply, low battery voltage, removal of alarm zone module (card, PC board), and disconnection of the circuit used for transmitting alarm signals off-premises. A trouble alarm silence switch shall be provided which will silence the trouble buzzer, but will not extinguish the trouble indicator LED.

Subsequent trouble and supervisory alarms shall sound the trouble signal until silenced. After the system returns to normal operating conditions, the trouble buzzer shall again sound until the silencing switch returns to normal position, unless automatic trouble reset is provided.

d. A one person test mode. Activating an initiating device in this mode will activate an alarm for a short period of time, then automatically reset the alarm, without activating the transmitter during the entire process.

e. A transmitter disconnect switch to allow testing and maintenance of the system without activating the transmitter but providing a trouble signal when disconnected and a restoration signal when reconnected.

f. Evacuation alarm silencing switch which, when activated, will silence alarm devices, but will not affect the zone indicating LED/LCD nor the operation of the transmitter. This switch shall be over-ridden upon activation of a subsequent alarm from an unalarmed zone and the NAC devices will be activated.

g. Electrical supervision for circuits used for supervisory signal services (i.e., sprinkler systems, valves, etc.). Supervision shall detect any open, short, or ground.

h. Confirmation or verification modules for smoke detection initiating circuits. The modules shall interrupt the transmission of an alarm signal to the system control panel for a factory preset period. This interruption period shall be adjustable from 1 to 60 seconds and be factory set at

20 seconds. Immediately following the interruption period, a confirmation period shall be in effect during which time an alarm signal, if present, will be sent immediately to the control panel. Fire alarm devices, other than smoke detectors, will be prohibited on circuits controlled by confirmation or verification modules.

i. The fire alarm control panel shall provide supervised relays for HVAC shutdown. An override at the HVAC panel shall not be provided.

j. Provide one person test mode - Activating an initiating device in this mode will activate an alarm for a short period of time, then automatically reset the alarm, without activating the

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k. The fire alarm control panel shall provide the required monitoring and supervised control outputs needed to accomplish elevator recall.

l. The fire alarm control panel shall provide the required modules to monitor and control the fire sprinkler system, or other fire protection extinguishing system.

m. Zones for alarm IDC and NAC shall be arranged as indicated on the contract drawings.

n. The fire alarm control panel shall be readily capable of future expansion and modification by qualified technicians. Examples of required changes are: adding or deleting devices or zones;

changing system responses to particular input signals; programming certain input signals to activate auxiliary devices.

1.4.3 Alarm Functions

1.4.3.1 An alarm condition on a circuit shall automatically initiate the following functions:

a. Transmission of a signal to the station fire reporting system.

b. Visual indications of the alarmed zones on the fire alarm control panel annunciator and on the remote annunciator.

c. Continuous sounding or operation of alarm notification appliances in designated areas throughout the building as required by ANSI S3.41.

d. Closure of doors held open by electromagnetic devices.

e. Operation of the smoke control system.

f. Deactivation of the air handling units in the alarmed zone or throughout the building as appropriate.

g. Shutdown of power to the data processing equipment in the alarmed zones.

h. If indicated, automatic discharge of the designated fire suppression systems. A 15 second maximum delay shall be provided for the deluge system, a 30 second delay for the wet pipe system.

1.4.4 Primary Power

1.4.4.1 Operating power shall be provided as required by paragraph Power Supply for the System.

Transfer from normal to emergency power or restoration from emergency to normal power shall be fully automatic and not cause transmission of a false alarm. Loss of ac power shall not prevent transmission of a signal via the fire reporting system upon operation of any initiating circuit.

1.4.5 Battery Backup Power

1.4.5.1 Battery backup power shall be through use of rechargeable, sealed-type storage batteries and battery charger.

1.4.6 Interface With Existing Fire Alarm Equipment

1.4.6.1 Existing control and monitoring equipment shall be expanded, modified, or supplemented as necessary to extend the existing control and monitoring functions to the new points or zones.

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New components shall be capable of merging with the existing configuration without degrading the performance of either system. The scope of the acceptance tests of paragraph Testing shall include aspects of operation that involve combined use of both new and existing portions of the final configuration.

1.4.7 Interface With Other Equipment

1.4.7.1 Interfacing components shall be furnished as required to connect to subsystems or devices which interact with the fire alarm system, such as supervisory or alarm contacts in suppression systems, operating interfaces for smoke control systems, door releases, etc.

1.5 TECHNICAL DATA AND COMPUTER SOFTWARE

1.5.1 Technical data and computer software (meaning technical data which relates to computer software) which is specifically identified in this project, and which may be defined/required in other specifications, shall be delivered in accordance with the CONTRACT CLAUSES, and in accordance with the Contract Data Requirements List, DD Form 1423. Data delivered shall be identified by reference to the particular specification paragraph against which it is furnished.

Data to be submitted shall include complete system, equipment, and software descriptions.

Descriptions shall show how the equipment will operate as a system to meet the performance requirements of this contract. The data package shall also include the following:

1.5.1.1 Identification of programmable portions of system equipment and capabilities.

1.5.1.2 Description of system revision and expansion capabilities and methods of implementation detailing both equipment and software requirements.

1.5.1.3 Provision of operational software data on all modes of programmable portions of the fire alarm and detection system.

1.5.1.4 Description of Fire Alarm Control Panel equipment operation.

1.5.1.5 Description of auxiliary and remote equipment operations.

1.5.1.6 Library of application software.

1.5.1.7 Operation and maintenance manuals described under SD-19 in the SUBMITTALS paragraph.

1.6 DELIVERY AND STORAGE

1.6.1 Equipment delivered and placed in storage shall be stored with protection from the weather, humidity and temperature variation, dirt, dust, and any other contaminants.

PART 2 PRODUCTS

2.1 CONTROL PANEL

2.1.1 Control panel shall comply with the applicable requirements of UL 864. Panel shall be modular, installed in a flush, surface or semi-flush (as indicated) mounted steel cabinet with hinged door

28 31 00.00 10-9 and cylinder lock. Control panel shall be a clean, uncluttered, and orderly assembled panel containing components and equipment required to provide the specified operating and supervisory functions of the system. The panel shall have prominent rigid plastic, phenolic or metal identification plates for LEDs, zones, controls, meters, fuses, and switches. Nameplates for fuses shall also include ampere rating. Separate alarm and trouble LEDs shall be provided for each zone alarm. These LEDs shall be located on the exterior of the cabinet door or be visible through the cabinet door. Control panel switches shall be within the locked cabinet. A suitable means (single operation) shall be provided for testing the control panel visual indicating devices

(meters or LEDs). Meters and LEDs shall be plainly visible when the cabinet door is closed.

Signals and LEDs shall be provided to indicate by zone any alarm, supervisory or trouble condition on the system. Each IDC shall be powered and supervised so that a signal on one zone does not prevent the receipt of signals from other zones. Loss of power, including batteries, shall not require the reloading of a program. Upon restoration of power, startup shall be automatic, and shall not require any manual operation. The loss of primary power or the sequence of applying primary or emergency power shall not affect the transmission of alarm, supervisory or trouble signals. Visual annunciators shall be provided for each active zone and spare zone. Spare zones shall be provided as shown on the drawing. Each LED shall provide specific identification of the zone by means of a permanently attached rigid plastic, phenolic, or metal sign with either raised or engraved letters. Zone identification shall consist of a word description of the zone.

Cabinets shall be provided with ample gutter space to allow proper clearance between the cabinet and live parts of the panel equipment. If more than one modular unit is required to form a control panel, the units shall be installed in a single cabinet large enough to accommodate units. Cabinets shall be painted red.

2.1.2 Remote System Trouble Audible/Visual Appliance

2.1.2.1 Audible appliance shall have a minimum sound level output rating of 85 dBA at 10 feet and operate in conjunction with the panel's integral trouble signal. The audible device shall be silenced by the system trouble silence switch located at the remote location, but shall not extinguish the visual indicator. A rigid plastic, phenolic or metal identification sign which reads "Fire Alarm System Trouble" shall be provided at the audible appliance. The visual appliance located with the audible appliance shall not be extinguished until the trouble has been cleared.

2.1.3 Circuit Connections

2.1.3.1 Circuit conductors entering or leaving the panel shall be connected to screw-type terminals with each conductor and terminal marked for identification.

2.1.4 System Expansion and Modification Capabilities

2.1.4.1 Any equipment and software needed by qualified technicians to implement future changes to the fire alarm system shall be provided as part of this contract.

2.2 STORAGE BATTERIES

2.2.1 Storage batteries shall be provided and shall be 24 Vdc sealed, lead-calcium type requiring no additional water. The batteries shall have ample capacity, with primary power disconnected, to operate the fire alarm system for a period of 72 hours. Following this period of battery operation, the batteries shall have ample capacity to operate all components of the system, including all alarm signaling devices in the total alarm mode for a minimum period of 15 minutes. Batteries

28 31 00.00 10-10 shall be located at the bottom of the panel or if necessary in a separate battery cabinet. Batteries shall be provided with overcurrent protection in accordance with NFPA 72. Separate battery cabinets shall have a lockable, hinged cover similar to the fire alarm panel. The lock shall be keyed the same as the fire alarm control panel. Cabinets shall be painted to match the fire alarm control panel.

2.3 BATTERY CHARGER

2.3.1 Battery charger shall be completely automatic, 24 Vdc with high/low charging rate, capable of restoring the batteries from full discharge (18 Volts dc) to full charge within 48 hours. A pilot light indicating when batteries are manually placed on a high rate of charge shall be provided as part of the unit assembly, if a high rate switch is provided. Charger shall be located in control panel cabinet or in a separate battery cabinet.

2.4 MANUAL FIRE ALARM STATIONS

2.4.1 Manual fire alarm stations shall conform to the applicable requirements of UL 38. Manual stations shall be connected into signal line circuits. Stations shall be installed on surface, semi-flush or flush mounted outlet boxes as appropriate. Manual stations shall be mounted at 48 inches. Stations shall be single or double action type as appropriate. Stations shall be finished in red, with raised letter operating instructions of contrasting color. Stations requiring the breaking of glass or plastic panels for operation are not acceptable. Stations employing glass rods are not acceptable. The use of a key or wrench shall be required to reset the station. Gravity or mercury switches are not acceptable. Switches and contacts shall be rated for the voltage and current upon which they operate. Stations shall have a separate screw terminal for each conductor. Surface mounted boxes shall be matched and painted the same color as the mounting surface.

2.5 FIRE DETECTING DEVICES

2.5.1 Fire detecting devices shall comply with the applicable requirements of NFPA 72, NFPA 90A, UL 268, UL 268A, and UL 521. The detectors shall be provided as indicated. Detector base shall have screw terminals for making connections. No solder connections will be allowed.

Detectors located in concealed locations (above ceiling, raised floors, etc.) shall have a remote visible indicator LED/LCD. Installed devices shall conform to the NFPA 70 hazard classification of the area where devices are to be installed.

2.5.1.1 Heat Detectors

a. Heat detectors shall be designed for detection of fire by combination fixed temperature and rate-of-rise principle. Heat detector spacing shall be rated in accordance with UL 521.

Detectors located in areas subject to moisture, exterior atmospheric conditions, or hazardous locations as defined by NFPA 70 and as shown on drawings, shall be types approved for such locations. Heat detectors located in attic spaces or similar concealed spaces below the roof shall be intermediate temperature rated.

2.5.1.2 Combination Fixed-Temperature and Rate-of-Rise Detectors

a. Detectors shall be designed for surface or semi-flush outlet box mounting as appropriate and supported independently of wiring connections. Contacts shall be self-resetting after response to rate-of-rise principle. Under fixed temperature actuation, the detector shall have a permanent external indication which is readily visible. Detector units located in boiler rooms, showers, or

28 31 00.00 10-11 other areas subject to abnormal temperature changes shall operate on fixed temperature principle only. The UL 521 test rating for the fixed temperature portion shall be 135 degrees F unless otherwise indicated. The UL 521 test rating for the Rate-of-Rise detectors shall be rated for 50 by 50 ft.

2.5.1.3 Fixed Temperature Detectors

a. Detectors shall be designed for surface or semi-flush outlet box as appropriate mounting and supported independently of wiring connections. Detectors shall be designed to detect high heat.

The detectors shall have a specific temperature setting 135 degrees F. The UL 521 test rating for the fixed temperature detectors shall be rated for 15 by 15 ft.

2.5.2 Smoke Detectors

2.5.2.1 Smoke detectors shall be designed for detection of abnormal smoke densities. Smoke detectors shall be photoelectric or projected beam type as applicable. Detectors shall contain a visible indicator LED that shows when the unit is in alarm condition. Detectors shall not be adversely affected by vibration or pressure. Detectors shall be the plug-in type in which the detector base contains terminals for making wiring connections. Detectors that are to be installed in concealed (above false ceilings, etc.) locations shall be provided with a remote indicator LED suitable for mounting in a finished, visible location.

2.5.2.2 Photoelectric Detectors

a. Detectors shall operate on a light scattering concept using an LED light source. Failure of the

LED shall not cause an alarm condition. Detectors shall be factory set for sensitivity and shall require no field adjustments of any kind. Detectors shall have an obscuration rating in accordance with UL 268.

2.5.2.3 Projected Beam Smoke Detectors

a. Detectors shall be designed for detection of abnormal smoke densities. Detectors shall consist of separate transmitter and receiver units. The transmitter unit shall emit an infrared beam to the receiver unit. When the signal at the receiver falls below a preset sensitivity, the detector shall initiate an alarm. The receiver shall contain an LED which is powered upon an alarm condition. Long-term changes to the received signal caused by environmental variations shall be automatically compensated. Detectors shall incorporate features to assure that they are operational; a trouble signal shall be initiated if the beam is obstructed, the limits of the compensation circuit are reached, or the housing cover is removed. Detectors shall have multiple sensitivity settings in order to meet UL listings for the different distances covered by the beam. In the event of beam interference for more than three seconds a trouble alarm shall be transmitted.

2.5.2.4 Duct Detectors

a. Duct-mounted photoelectric smoke detectors shall be furnished and installed where indicated and in accordance with NFPA 90A. Units shall consist of a smoke detector as specified in paragraph Photoelectric Detectors, mounted in a special housing fitted with duct sampling tubes. Detector circuitry shall be mounted in a metallic enclosure exterior to the duct.

Detectors shall have a manual reset. Detectors shall be rated for air velocities that include air flows between 500 and 4000 fpm. Detectors shall be powered from the fire alarm panel.

Sampling tubes shall run the full width of the duct. The duct detector package shall conform to the requirements of NFPA 90A, UL 268A, and shall be UL listed for use in air-handling

28 31 00.00 10-12 systems. The control functions, operation, reset, and bypass shall be controlled from the fire alarm control panel. Lights to indicate the operation and alarm condition; and the test and reset buttons shall be visible and accessible with the unit installed and the cover in place. Detectors mounted above 6 feet and those mounted below 6 feet that cannot be easily accessed while standing on the floor, shall be provided with a remote detector indicator panel containing test and reset switches. Remote lamps and switches as well as the affected fan units shall be properly identified in etched plastic placards. Detectors shall have auxiliary contacts to provide control, interlock, and shutdown functions specified in Section 23 09 23 Direct Digital Control for HVAC and Other Local Building Systems. The detectors shall be supplied by the fire alarm system manufacturer to ensure complete system compatibility.

2.5.3 Combination Smoke and Heat Detectors

2.5.3.1 Combination smoke and heat detectors shall have an audible device (self-contained) and be designed for detection of abnormal smoke densities by the photoelectric principle and abnormal heat by a fixed temperature sensor. Smoke detectors shall be provided with an LED light source. Failure of the LED shall not cause an alarm condition and the sensitivity shall be factory set at a nominal 3 percent and require no field adjustments of any kind. Heat detector portion shall be fixed temperature sensor rated at 135 degrees F. The audible appliances shall have a minimum sound output of at least 85 dBA at 10 feet. Detectors shall contain a visible indicator LED that shows when the unit is in alarm condition. Detectors shall not be adversely affected by vibration or pressure. Heat detectors shall connect to a control panel IDC and shall be self restorable.

2.5.4 Flame Detectors

2.5.4.1 The detectors shall comply with FM P7825a. The detectors shall be sensitive to the micron range best suited for their intended use. The detectors shall operate over electrically supervised wiring circuits and the loss of power to the detector shall result in a trouble signal. A self-test feature shall be provided for each detector to be individually tested.

2.5.4.2 Infrared (IR) Single Frequency Flame Detector

a. The detector shall be sensitive in the range of 3.8 to 4.8 micrometers or as applicable for the application.

2.5.4.3 Infrared (IR) Dual Frequency Flame Detector

a. The IR detector shall consist of two or more IR sensors, each selected for a different IR frequency. The primary sensor shall be sensitive in the range of 3.8 to 4.8 micrometers or as applicable for the application. Secondary sensors are tuned to different IR wavelengths to null out the effect of black body radiation to the primary sensor.

2.5.4.4 Ultraviolet (UV) Flame Detectors

a. UV flame detector shall be of the narrow band response type which operates on radiated ultraviolet energy and shall be sensitive in the range of 3.8 to 4.8 micrometers or as applicable for the application. The cone of vision shall be 80 degrees or greater. Each detector shall be completely insensitive to light sources in the visible frequency range.

2.5.4.5 Combination UV/IR Flame Detector

a. The UV/IR detector shall provide discrimination against false alarms by requiring both UV and file:///E:/23%2009%2023.doc

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IR flame detection before an alarm is sent. The UV sensor shall be sensitive in the range of

0.185 to 0.265 micrometers only. The IR sensor shall be sensitive in the range of 3.8 to 4.8 micrometers or as applicable for the application. Detectors shall be completely insensitive to light sources in the visible frequency range.

2.6 NOTIFICATION APPLIANCES

2.6.1 Audible appliances shall conform to the applicable requirements of UL 464. Devices shall be connected into notification appliance circuits. Devices shall have a separate screw terminal for each conductor. Audible appliances shall generate a unique audible sound from other devices provided in the building and surrounding area. Audible appliances shall be painted red or white as applicable.

2.6.2 Alarm Bells

2.6.2.1 Bells shall be surface mounted with the matching mounting back box surface mounted or recessed as applicable. Bells shall be suitable for use in an electrically supervised circuit. Bells shall be the underdome type producing a minimum output rating of 85 dBA at 10 feet. Bells used in exterior locations shall be specifically listed or approved for outdoor use and be provided with metal housing and protective grilles. Single stroke, electrically operated, supervised, solenoid bells shall be used for coded applications.

2.6.3 Alarm Horns

2.6.3.1 Horns shall be provided with the matching mounting back box surface mounted or recessed, single or double projector type, with grille suitable for use in an electrically supervised circuit.

Horns shall produce a sound rating of at least 85 dBA at 10 feet. Horns used in exterior locations shall be specifically listed or approved for outdoor use and be provided with metal housing and protective grilles.

2.6.4 Visual Notification Appliances

2.6.4.1 Visual notification appliances shall conform to the applicable requirements of UL 1971.

Appliances shall have clear high intensity optic lens, xenon flash tubes, and output white light.

Strobe flash rate shall be between 1 to 3 flashes per second and a minimum of 75 candela.

Strobe shall be surface or semi-flush mounted as applicable.

2.6.5 Combination Audible/Visual Notification Appliances

2.6.5.1 Combination audible/visual notification appliances shall provide the same requirements as individual units, except that they shall mount as a unit in standard backboxes. Units shall be factory assembled. Any other audible notification appliance employed in the fire alarm systems shall be approved by the Contracting Officer.

2.7 REMOTE ANNUNCIATION EQUIPMENT

2.7.1 Remote LCD Annunciator with Graphic Map

2.7.1.1 A graphic map shall have a plan view of each floor. An LCD, integral or adjacent to the map assembly will provide a description of the alarm and location which mimics the FACP status.

28 31 00.00 10-14

Plan views shall be approximately to scale and in no case smaller than 12 inches in length or width. Annunciator shall be flush mounted. The graphic shall identify device locations, FACP location and graphic location by an appropriate symbol and text code. The "Graphic" screen itself shall be a quality color plot on gloss bond paper housed behind a clear plastic or glass cover in an aluminum frame. The graphic map and housing must be submitted and approved prior to fabrication. Slight modifications may be required to make the housing blend in aesthetically with the surroundings.

2.8 FIRE DETECTION AND ALARM SYSTEM PERIPHERAL EQUIPMENT

2.8.1 Electromagnetic Door Hold-Open Devices

2.8.1.1 Devices shall be attached to the walls unless otherwise indicated. Devices shall comply with the appropriate requirements of UL 228. Devices shall operate on 24 Volt dc power.

Compatible magnetic component shall be attached to the door. Under normal conditions, the magnets shall attract and hold the doors open. When magnets are de-energized, they shall release the doors. Magnets shall have a holding force of 25 pounds. Devices shall be UL or

FM approved. Housing for devices shall be brushed aluminum or stainless steel. Operation shall be fail safe with no moving parts. Electromagnetic door hold-open devices shall not be required to be held open during building power failure.

2.8.2 Conduit

2.8.2.1 Conduit and fittings shall comply with UL 6, UL 1242 and UL 797.

2.8.3 Wiring

2.8.3.1 Wiring shall conform to NFPA 70. Wiring for 120 Vac power shall be No. 12 AWG minimum.

Wiring for Fire Alarm circuits shall be No. 14 AWG minimum. Voltages shall not be mixed in any junction box, housing, or device, except those containing power supplies and control relays. Wiring shall conform to NFPA 70. System field wiring shall be solid copper and installed in metallic conduit or electrical metallic tubing, except rigid plastic conduit may be used under slab-on-grade. Conductors shall be color coded. Conductors used for the same functions shall be similarly color coded. Wiring code color shall remain uniform throughout the circuit. Pigtail or T-tap connections to initiating device circuits, supervisory alarm circuits, and notification appliance circuits are prohibited.

2.8.4 Special Tools and Spare PartsS

2.8.4.1 Software, connecting cables and proprietary equipment, necessary for the maintenance, testing, and reprogramming of the equipment shall be furnished to the Contracting Officer. Two spare fuses of each type and size required shall be furnished. Two percent of the total number of each different type of detector, but no less than two each, shall be furnished. Spare fuses shall be mounted in the fire alarm panel.

2.9 TRANSMITTERS

2.9.1 Radio Alarm Transmitters

2.9.1.1 Transmitters shall be compatible with proprietary supervising station receiving equipment.

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Each radio alarm transmitter shall be the manufacturer's recognized commercial product, completely assembled, wired, factory tested, and delivered ready for installation and operation.

Transmitters shall be provided in accordance with applicable portions of NFPA 72, NFPA

1221, and 47 CFR 15. Transmitter electronics module shall be contained within the physical housing as an integral, removable assembly. The proprietary supervising station receiving equipment is existing and the transceiver shall be fully compatible with this equipment. At the

Contractor's option, and if UL listed, the transmitter may be housed in the same panel as the fire alarm control panel.

2.9.1.2 Transmitter Power Supply

a. Each radio alarm transmitter shall be powered by a combination of locally available 120-volt ac power and a sealed, lead-calcium battery.

(1) Operation: Each transmitter shall operate from 120-volt ac power. In the event of 120-volt ac power loss, the transmitter shall automatically switch to battery operation.

Switchover shall be accomplished with no interruption of protective service, and shall automatically transmit a trouble message. Upon restoration of ac power, transfer back to normal ac power supply shall also be automatic. Each transmitter shall meet the following requirements:

(2) Battery Power: Transmitter standby battery capacity shall provide sufficient power to operate the transmitter in a normal standby status for a minimum of 72 hours and be capable of transmitting alarms during that period.

2.9.1.3 Radio Alarm Transmitter Housing

a. Transmitter housing shall be NEMA Type 1. The housing shall contain a lock that is keyed identical to the fire alarm system for the building. Radio alarm transmitter housing shall be factory painted with a suitable priming coat and not less than two coats of a hard, durable weatherproof enamel.

2.9.1.4 Antenna

a. The Contractor shall provide omnidirectional, coaxial, halfwave dipole antennas for radio alarm transmitters with a driving point impedance to match transmitter output. The antenna and antenna mounts shall be corrosion resistant and designed to withstand wind velocities of 100 mph. Antennas shall not be mounted to any portion of the building roofing system.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 All work shall be installed as shown, and in accordance with NFPA 70 and NFPA 72, and in accordance with the manufacturer's diagrams and recommendations, unless otherwise specified.

Smoke detectors shall not be installed until construction is essentially complete and the building has been thoroughly cleaned.

3.1.2 Power Supply for the System

3.1.2.1 A single dedicated circuit connection for supplying power from a branch circuit to each building fire alarm system shall be provided. The power shall be supplied as shown on the

28 31 00.00 10-16 drawings. The power supply shall be equipped with a locking mechanism and marked in red with the words "FIRE ALARM CIRCUIT CONTROL".

3.1.3 Wiring

3.1.3.1 Conduit size for wiring shall be in accordance with NFPA 70. Wiring for the fire alarm system shall not be installed in conduits, junction boxes, or outlet boxes with conductors of lighting and power systems. Not more than two conductors shall be installed under any device screw terminal. The wires under the screw terminal shall be straight when placed under the terminal then clamped in place under the screw terminal. The wires shall be broken and not twisted around the terminal. Circuit conductors entering or leaving any mounting box, outlet box enclosure, or cabinet shall be connected to screw terminals with each terminal and conductor marked in accordance with the wiring diagram. Connections and splices shall be made using screw terminal blocks. The use of wire nut type connectors in the system is prohibited. Wiring within any control equipment shall be readily accessible without removing any component parts. The fire alarm equipment manufacturer's representative shall be present for the connection of wiring to the control panel.

3.1.4 Control Panel

3.1.4.1 The control panel and its assorted components shall be mounted so that no part of the enclosing cabinet is less than 12 inches nor more than 78 inches above the finished floor. Manually operable controls shall be between 36 and 42 inches above the finished floor. Panel shall be installed to comply with the requirements of UL 864.

3.1.5 Detectors

3.1.5.1 Detectors shall be located and installed in accordance with NFPA 72. Detectors shall be connected into signal line circuits or initiating device circuits as indicated on the drawings.

Detectors shall be at least 12 inches from any part of any lighting fixture. Detectors shall be located at least 3 feet from diffusers of air handling systems. Each detector shall be provided with appropriate mounting hardware as required by its mounting location. Detectors which mount in open space shall be mounted directly to the end of the stubbed down rigid conduit drop. Conduit drops shall be firmly secured to minimize detector sway. Where length of conduit drop from ceiling or wall surface exceeds 3 feet, sway bracing shall be provided.

Detectors installed in concealed locations (above ceiling, raised floors, etc.) shall have a remote visible indicator LED/LCD as indicated.

3.1.6 Notification Appliances

3.1.6.1 Notification appliances shall be mounted 80 inches above the finished floor or 6 inches below the ceiling, whichever is lower.

3.1.7 Annunciator Equipment

3.1.7.1 Annunciator equipment shall be mounted where indicated on the drawings.

3.1.8 Supervisory and Alarm Contacts

3.1.8.1 Contacts in suppression systems and other fire protection subsystems shall be connected to the fire alarm system to perform supervisory and alarm functions as identified in NFPA 72 and as

28 31 00.00 10-17 indicated on the drawings. Contacts shall be provided in accordance with other sections of the specifications and specific instructions on corresponding drawings. See Section 21 13 13.00 10

Wet Pipe Sprinkler System, Fire Protection or Section 21 13 17.00 10 Dry Pipe Sprinkler

System, Fire Protection as applicable.

3.2 OVERVOLTAGE AND SURGE PROTECTION

3.2.1 Power Line Surge Protection

3.2.1.1 All equipment connected to alternating current circuits shall be protected from surges per IEEE

C62.41.1/IEEE C62.41.2 B3 combination waveform and NFPA 70. Fuses shall not be used for surge protection. The surge protector shall be rated for a maximum let thru voltage of 350

Volts ac (line-to-neutral) and 350 Volt ac (neutral-to-ground).

3.2.2 Low Voltage DC Circuits Surge Protection

3.2.2.1 All IDC, NAC, and communication cables/conductors, except fiber optics, shall have surge protection installed at each point where it exits or enters a building. Equipment shall be protected from surges per IEEE C62.41.1/IEEE C62.41.2 B3 combination waveform and NFPA

70. The surge protector shall be rated to protect the 24 Volt dc equipment. The maximum dc clamping voltages shall be 36 V (line-to-ground) and 72 Volt dc (line-to-line).

3.3 GROUNDING

3.3.1 Grounding shall be provided by connecting to building ground system.

3.3.2 Revisions to Existing Facilities

3.3.2.1 Existing supervising components shall be modified as indicated on the drawings and programming shall be updated if required to accommodate the revised configuration.

Acceptance testing shall include procedures that would demonstrate that operation of existing equipment has not been degraded and that the revised configuration plus interfacing components operate compatibly with the new fire alarm system at the protected premises.

Work on existing equipment shall be performed in accordance with the manufacturer's instructions or under supervision of the manufacturer's representative.

3.3.3 Additions to Existing Facilities

3.3.3.1 Supplemental components shall be added to the existing supervising equipment as required to accommodate the new fire alarm system to be installed at the protected premises and as indicated on the drawings. All present functions shall be extended, including recording and storage in memory, and programming shall be updated if required to accommodate the revised configuration. Acceptance testing shall include procedures that would demonstrate that operation of existing equipment has not been degraded and that the expanded configuration operates compatibly with the new fire alarm system.

3.4 TESTING

3.4.1 The Contractor shall notify the Contracting Officer at least 10 days before the preliminary and acceptance tests are to be conducted. The tests shall be performed in accordance with the file:///E:/21%2013%2013.00%2010.doc file:///E:/21%2013%2017.00%2010.doc

28 31 00.00 10-18 approved test procedures in the presence of the Contracting Officer. The control panel manufacturer's representative shall be present to supervise tests. The Contractor shall furnish instruments and personnel required for the tests.

3.4.2 Preliminary Tests

3.4.2.1 Upon completion of the installation, the system shall be subjected to functional and operational performance tests including tests of each installed initiating and notification appliance, when required. Tests shall include the meggering of system conductors to determine that the system is free from grounded, shorted, or open circuits. The megger test shall be conducted prior to the installation of fire alarm equipment. If deficiencies are found, corrections shall be made and the system shall be retested to assure that it is functional. After completing the preliminary testing the Contractor shall complete and submit the NFPA 72, Certificate of Completion.

3.4.3 Acceptance Test

3.4.3.1 Acceptance testing shall not be performed until the Contractor has completed and submitted the

Certificate of Completion. Testing shall be in accordance with NFPA 72. The recommended tests in NFPA 72 shall be considered mandatory and shall verify that previous deficiencies have been corrected. The Contractor shall complete and submit the NFPA 72, Inspection and

Testing Form. The test shall include all requirements of NFPA 72 and the following:

a. Test of each function of the control panel.

b. Test of each circuit in both trouble and normal modes.

c. Tests of each alarm initiating devices in both normal and trouble conditions.

d. Tests of each control circuit and device.

e. Tests of each alarm notification appliance.

f. Tests of the battery charger and batteries.

g. Complete operational tests under emergency power supply.

h. Visual inspection of wiring…