SECTION FIRE DETECTION AND ALARM SYSTEM

Transcription

1 SECTION FIRE DETECTION AND ALARM SYSTEM PART 1 - GENERAL 1.01 REQUIREMENTS A. The general provisions of the Contract, including General and Supplementary Conditions and General Requirements, apply to the work specified in this Section SCOPE A. The work covered under this Section shall include engineering, designing, testing, furnishing and installing a complete and operable addressable type analog fire detection and alarm system shown on the Drawings and herein specified. The system shall include, but not be limited to: control panel including backbox; remote graphic annunciator panel including backbox; alarm initiating and indicating peripheral devices; outlet boxes; conduit; line and low voltage wiring; and all accessories required. B. The existing fire detection and alarm system shall remain in operation during the construction period until the new system has been installed, tested, and approved by the Fairfax County Fire Marshal and the Owner. The existing system shall then be removed as shown on the Drawings QUALITY ASSURANCE A. All devices and equipment for this system shall be listed by the Underwriter's Laboratories, Inc. (UL), bear the UL label and shall conform to the applicable sections of National Fire Protection Association (NFPA) 72 and 90A, and the Americans with Disabilities Act (ADA) Code of Federal Regulation. B. The installation shall be in accordance with all requirements of NFPA, the National Electrical Code (NEC), all state and local codes and requirements, and these Specifications. C. This Contractor shall furnish shop drawings submittals for all components of this system in accordance with SECTION of these specifications. Submittals shall include the following for review. Submittals not containing all of the information listed below will be rejected. 1. A complete list by model number of each component of the system with a statement of how many pieces of each model are to be furnished and a listing of the specific data sheet. 2. A description of the system as it functions by component in the system using model numbers where applicable /13

2 3. A complete battery calculation listing by module for the system. 4. A data sheet shall be furnished for each component of the system. The specific information shall be highlighted. 5. A detailed drawing of the control panel shall be furnished showing all modules in their specific location with the specific terminal terminations shown. 6. A detailed set of floor plans for the complete building shall be furnished showing the locations of all equipment and devices, their addresses, and their required interconnections. The interconnections shown shall indicate the system manufacturer's recommended number, size, and type of wires as described in this Specification. The plans shall show the locations of all required control and monitor modules and their addresses. The layout of all fire detection and alarm system equipment, devices, and conduit routings shall closely follow that shown on the Drawings. 7. A detailed drawing shall be furnished of each type of device showing the exact terminal designations. 8. A detailed list shall be furnished of each type of device in the system stating its program function in the system. 9. A detailed list shall be furnished of the relays in the system and their program function. 10. A detailed manufacturer's drawing shall be furnished of the graphic annunciator panel, as it shall appear on the wall in the location of its installation. 11. Certification by the equipment distributor of the required service response time. D. Following review of the submittals by the Architect/Engineer and Owner, and prior to release of the fire alarm equipment, this Contractor shall submit to the Fairfax County Fire Marshal's office all copies of the corrected submittals for review, comment, and approval. This contractor shall not release any equipment prior to receiving the Fairfax County Fire Marshall approved shop drawing. This contractor shall be responsible for paying all fees associated with the Fire Marshall s review. E. The installation of all equipment and the final connection of all components and wiring shall be performed under the direct supervision of the system manufacturer's technical staff /13

3 F. Upon completion, the system shall be thoroughly tested by this Contractor to assure proper interfacing of all components. G. Prior to final inspection, this Contractor shall furnish to the prime Contractor, five (5) copies of the manufacturer's submittal drawings up-dated to reflect: any and all revisions to the system made during construction; and the final addresses of all devices. A printed list of system devices, which will include the following: device type, address, and custom message. H. The equipment to be furnished by this Contractor under these Specifications shall be the standard product of one manufacturer. Acceptable manufacturers shall be engaged in the manufacture of multiplexed fire alarm equipment for at least seven (7) years and have a fully equipped, factory trained and authorized service organization that will have a response time of four (4) hours or less to the job site The acceptable manufacturers shall be as follows EDWARDS SYSTEMS TECHNOLOGY (EST); NOTIFIER; and SIMPLEX TIME RECORDER CO. I. The fire detection and alarm system shall be furnished by a factory authorized distributor certified to design, program, and service the system. This distributor must show evidence of successfully furnishing systems as specified for at least five (5) years. This distributor shall provide twenty four (24) hour, seven (7) day a week (including holidays) service capability with a maximum four (4) hour response time. This distributor shall provide certification of this capability as part of the submittals. J. This contractor shall furnish to the Owner the following keys in the quantities indicated. 1. Fire Alarm Annunciator Panel Access Two (2) 2. Fire Alarm Annunciator Control Switches Five (5). 3. Fire Alarm Control Panel Five (5) 1.04 DESCRIPTION OF SYSTEM A. The fire detection and alarm system shall be individual point addressable, general alarm, electrically supervised, continuously sounding temporal tone signal with audible and visual alarm and trouble indications. 1. Each individual alarm initiating device shall report to the control panel as a separate "address". 2. The remote graphic annunciator panel's fire zone, and sprinkler zone boundaries shall be in accordance with the Fairfax County's regulations and the Architect/Engineer's detail on the Drawings /13

4 B. Activation of a manual fire alarm pull station; automatic smoke, heat detector; kitchen hood extinguishing system; or waterflow switch shall cause the following: 1. All audible/visual-signaling devices shall sound continuously having a temporal tone signal until manually silenced. A subsequent alarm received after silencing shall again cause the alarm indicating circuits to be activated. The fire alarm signals shall be distinctive from all other alarm signals and shall be clearly audible throughout the entire building. 2. The appropriate alarm source indicating lamps shall energize on the remote graphic annunciator panel and indicate type of device and geographic fire zone. Graphic annunciator panel lamps, when lighted, shall be constantly illuminated. Flashing lamps will not be acceptable. 3. Auxiliary contacts shall activate the security intrusion system. 4. Operation of any intelligent thermal detector in the elevator machine room and/or elevator shaft shall automatically shut down the associated elevator. 5. Close all normally held-open smoke doors. 6. Visually indicate via the integral control panel LCD display, the addressable device in alarm. When the control panel goes into the alarm condition: the ALARM (red) LED shall light; the internal control panel alarm shall sound; and the first line of the minimum eighty (80) character LCD shall indicate the REAL TIME, the number of MESSAGES WAITING, and the TIME THAT THE ALARM OCCURRED. The second line shall display the TYPE OF ALARM and the ALARM ZONE NUMBER. The third and fourth lines shall display the user specified message. In order to reduce false alarms, all inputs shall be capable of alarm verification. The system shall be capable of setting the sensitivity of all analog detectors by point and shall be capable of displaying the analog value of the detector by device and/or traditional input and vectoring the value to a remote printer. The system shall automatically identify any analog detector which becomes dirty (maintenance alert) prior to false alarming. 7. (Engineer to edit out for middle and elementary) Activation of a manual striking station (only) shall initiate a three (3) minute delay in activating the signal circuits including the activation of the auxiliary contacts. This delay shall be activated and deactivated through a key switch on the fire alarm graphic annunciator panel and include an "delay activated" indicator light. Alarm indications at the fire alarm control panel and fire alarm graphic annunciator panel shall not be delayed /13

5 C. (Engineer to edit) Activation of a sprinkler valve tamper switch; dry pipe HI/LO air; air duct type detector; fire pump fault; or generator fault shall cause the following: 1. The appropriate amber alarm source indicating lamp shall energize on the remote graphic annunciator panel and the integral audible trouble signal shall sound. 2. Auxiliary contacts shall activate the security intrusion system. 3. Visually indicate via the integral control panel LCD display, the addressable sprinkler valve tamper switch, dry pipe HI/LO air, air duct type detector, fire pump fault, or generator fault in alarm. When the control panel goes into the alarm condition: the NORMAL (green) LED shall extinguish; the SUPERVISORY (amber) LED shall light; and the internal control panel alarm shall sound which shall be distinct from all other alarm sounds. The first line of the minimum eighty (80) character LCD shall indicate the REAL TIME, the number of MESSAGES WAITING, and TIME THAT THE ALARM OCCURRED. The second line shall display the TYPE OF ALARM and the ALARM ZONE NUMBER. The third and fourth lines shall display the user specified message. In order to reduce false alarms, all inputs shall be capable of alarm verification. 4. Operation of any air duct type smoke detector shall automatically shut down the associated air-handling unit and units which serve the same area, such as gymnasiums, cafeteria, auditoriums, etc. D. The system, including the remote graphic annunciator panel, shall remain in alarm condition until the initiating device is reset to normal and the control panel is reset. System reset shall be accomplished on a single key-operated switch on the remote graphic annunciator panel. E. The system shall use 120-volt commercial power as its normal source of power. Upon failure of the normal source, the system shall automatically transfer to the standby power supply which shall be capable of supporting all system supervisory functions for all initiation and signal circuits for a period of four (4) hours as required by NFPA 72A. F. In the event of failure of operating power, an open, or ground condition on the system wiring, the trouble signals (both audible and visual) shall actuate at the remote graphic annunciator panel. It shall be possible to silence audible trouble signals by means of silencing switches; however, it shall not be possible to extinguish the visual signals until the disarrangement has been corrected. Upon correction of the trouble condition, the audible trouble signal shall sound until the silencing switch is returned to normal or the system automatically resets the trouble indication. Alarm or trouble indication shall cause an auxiliary contact operation connected to the security system Field Interface Device /13

6 1.05 TESTING A. Upon final completion of the installation, and acceptance of each construction phased space, and after satisfactory testing of the system by this Contractor in the presence of the equipment supplier, this Contractor shall test the system in the presence of the Architect/Engineer, Fire Marshall, Owner, and other authorities having jurisdiction. The manufacturer shall furnish to the Owner a two (2) year contract effective from the date of acceptance, for maintenance and inspection service of the manufacturers' equipment. The manufacturer shall maintain an adequate supply of spare parts for ten (10) years, and shall provide supervision of the installation. The manufacturer and/or their distributor shall provide twenty-four (24) hour/seven (7) day (including holidays) service to the system as hereinbefore described WARRANTY A. This Contractor shall deliver the work described herein in a first-class operating condition in every respect. This Contractor shall also warrant that the material, equipment, and workmanship furnished shall be entirely free from defects. Any materials, equipment, or workmanship in which defects may develop before or during the warranty period shall be repaired or replaced at the Contractor s own expense. Refer to SECTION for the start of the warranty period. The contractor shall further warrant that all material, equipment, and workmanship used in the installation, but not specifically mentioned in the Drawings and Specifications, is the best of their respective kinds and that the construction and installation was performed in accordance with the best accepted standard practices in all details. B. It is the intention of this Specification that a complete life-safety system be furnished from a single manufacturer. Equipment shall be UL listed for fire alarm use INSTRUCTION AND MANUALS A. The equipment manufacturer shall provide eight (8) hours of instruction to the Owner's maintenance personnel and shall furnish three (3) complete field service manuals SPARE PARTS A. This Contractor shall furnish to the Owner spare parts as follows. Spare parts shall be furnished prior to the installation of the system. 1. Two (2) intelligent smoke detectors including bases. 2. Two (2) intelligent thermal type detectors including bases /13

7 PART 2 - PRODUCTS 3. Four (4) intelligent control modules. 4. Four (4) intelligent monitor modules. 5. Two (2) manual pull stations and intelligent monitor modules for each. 6. Six (6) audio/visual alarm signals. 7. Two (2) exterior alarm signals including surface mounted weatherproof backboxes. 8. Four (4) visual only alarm signals 2.01 NEW MAIN CONTROL PANEL A. The control panel shall be modular for ease of installation, maintenance, and configuration. The controller shall be capable of supporting a minimum of 1,900 supervised inputs/outputs per single line network without any change in hardware. The control panel controller shall have an eighty (80) character alphanumeric display that offers four (4) twenty (20) character lines. B. The control panel shall differentiate between long term drift above the pre-alarm threshold (maintenance alert, indicative of the need for cleaning) and a fast rise above the pre-alarm threshold (indicative of a smoldering fire). The maintenance alert shall be annunciated as an alert on the LCD only and shall not be confused as a trouble or an alarm. The unit shall contain a display module of the membrane style construction with a four (4) line by twenty (20) character liquid crystal display (LCD). The LCD shall use super-twist technology and backlighting for high contrast visual clarity. In the normal mode, the LCD shall display the TIME, the TOTAL NUMBER OF ACTIVE EVENTS, and the TOTAL NUMBER OF DISABLE POINTS. In the alarm mode, the LCD shall display the TOTAL NUMBER OF EVENTS, and the TYPE OF EVENT ON DISPLAY. Forty (40) characters of display space shall be reserved for the user s custom messages. The module shall have visual indicators for the following common control functions: AC POWER; ALARM; SUPERVISORY, MONITOR, TROUBLE, DISABLE, GROUND FAULT, CPU FAILURE, and TEST. There shall be common control keys and visual indicators for: RESET; ALARM SILENCE; TROUBLE SILENCE; DRILL; and one (1) custom programmable key/indicator. The module shall include four (4) pairs of display control keys for selection of event display by type (alarm, supervisory, monitor, and trouble) and forwardbackward scrolling through event listings. The operation of these keys shall be integrated with the related common control indicators to flash the indicators when undisplayed events are available for display and turn-on steady when all events have been displayed. The module shall allow the first event of the highest priority to capture the LCD for display so that arriving fire fighters can view the first alarm /13

8 event hands free. The module shall provide the following system function keys: STATUS; REPORTS; ENABLE; DISABLE; ACTIVATE; RESTORE; PROGRAM; and TEST. The module shall have a numeric keypad, zero (0) through nine (9), with delete and enter keys. C. During the normal state, the NORMAL (green) LED shall flash, the first line of the LCD shall display the time in (HH:MM:SS) as well as the number of active points and the number of disabled points in the system. When the control panel goes into the alarm condition, the first line of the minimum eighty (80) character LCD shall indicate the REAL TIME; the NUMBER OF MESSAGES WAITING; and TIME THAT THE ALARM OCCURED. The second line shall display the TYPE OF ALARM and the ALARM ZONE NUMBER. The third and fourth lines shall be dedicated to user specified messages. To silence audible devices the operator shall press the ALARM SILENCE button. A new alarm shall cause the audible devices to resound. To reset the network the operator shall press the RESET button. D. The control panel controller shall support and control any combination up to five (5) additional true networked slave control modules, serial annunciators and switches, over RS485, RS232, fiber optics, or 20 MA loop, and be Ethernet ready as required. E. The control panel controller shall contain a RS232 printer/programming port for programming locally via a personal computer or down loading through modems from a remote personal computer. F. The main controller shall be supervised, site programmable, and of modular design supporting up to ninety six (96) detectors and ninety four (94) remote modules, and two (2) notification appliance circuits (NAC). Additional support for expansion modules shall be provided to add an additional ninety six (96) detectors and ninety four (94) modules including two (2) additional NAC circuits. The NAC shall be convertible to power risers to serve remote multiple NAC modules for zoned signal applications. The system shall have built-in automatic system programming to automatically address and map all system devices attached to the main controller. A minimum default single stage alarm system operation shall be supported with alarm silence, event silence, drill, lamp test, and reset common controls. The system shall support distributed processor intelligent detectors with the following operational attributes: integral multiple differential sensors; automatic device mapping; electronic addressing; environmental compensation; pre-alarm; dirty detector identification; automatic day/night sensitivity adjustment; normal/alarm LED s; relay bases; sounder bases; and isolator bases. Systems, which only monitor the presence of a conventional detector in an addressable base, shall not be acceptable. G. Each intelligent loop card shall contain its own dedicated resident central processor unit (CPU) and shall provide power, process, store, control, and communicate with detectors and in/out modules via a minimum No. 18 AWG /13

9 twisted pair cable up to a maximum of 5,000 feet. The cable shall be computer grade. H. The system shall use full digital communications to supervise all addressable loop devices and power supplies for placement, correct location, and operation. It shall allow swapping of same type devices without the need of addressing and impose the location parameters on replacement devices. It shall initiate and maintain a trouble if a device is added to a loop and clear the trouble when the new device is mapped and defined into the system. System circuits shall be configured as follows: addressable analog loops Class <B>; initiating device circuits Class <B>; notification appliance circuits Class <B>; network communications <B>; and annunciator communications <B>. The system shall have an U.L. listed detector sensitivity test feature, which shall be a function of the smoke detectors and performed automatically every four (4) hours. The system shall support one hundred percent (100%) of all remote devices in alarm. All panel modules shall be supervised for placement and return trouble if damaged or removed. The system shall have a CPU watchdog circuit to initiate trouble should the CPU fail. The system evacuation signal rate shall be continuous. The system shall include a signal silence inhibit and an automatic signal silence timer. Audible notification and visual signal appliances shall be affected by signal silence features. For NFPA Style 4 operation, branch circuits (T-Taps) may be made off the loop. The number of T-Taps shall not exceed the manufacturer's recommendations. I. The average time to detect an alarm shall be three (3) seconds or less. The polling time for the system shall remain the same regardless of the number of intelligent loops in the system up to it's maximum. J. The control panel network master shall have the following features without any changes in hardware or firmware: 1. Five hundred seventy six (576) event history log stored in RAM including, but not limited to, facility name, licensee, project compile date, compiler version, project revision, and time and date of history request. 2. Logics statements. 3. Time controls. 4. Sequences. 5. Actions. 6. Weekday/holiday schedules. 7. Analog value reporting of all analog detectors /13

10 8. Maintenance reporting by intelligent detector. 9. Sensitivity setting changed by detector (within UL limits). 10. Sensitivity setting changed by time (Day/Night Mode). 11. Alarm verification by point or zone (0 to 60 seconds in intervals of 5 seconds). 12. Up to ninety nine (99) priorities for any event driven relay/output. 13. Enabling and disabling of any system device. 14. Ground fault detection on all system devices and inputs. 15. Opens detected on all system devices and inputs. K. A main fire alarm control panel, which will meet this Specification, shall consist of an EST Model No. EST-3 wall mounted equipment cabinet(s) complete with the following modules of the quantity required to perform all of the specified functions. 1. EST-3 a. EST Model No. 3-CPU3 central processor unit. b. EST Model No. 3-RS485B network communications card. c. EST Model No. 3-RS232 RS232 communications card. d. EST Model No. 3-SSDC1 signature single driver controller. e. EST Model No. 3-PPS/M power supply INTELLIGENT PERIPHERAL REQUIREMENTS A. This Contractor shall furnish and install intelligent devices as shown on the Drawings and herein specified. All remote intelligent devices shall have a microprocessor with non-volatile memory to support their functionality and serviceability. Each device shall store as required for its functionality the following data: device serial number; device address; device type; personality code; date of manufacture; hours in use; time and date of last alarm; amount of environmental compensation left/used; last maintenance date; job/project number; current detector sensitivity values; diagnostic information (trouble codes); and algorithms required to process sensor data and perform communications with the loop controller. Each device shall be capable of electronic addressing either automatically or application programmed assigned, to support physical/electrical mapping and supervision by location. Setting a /13

11 device s address by physical means shall not be necessary. B. The intelligent detectors shall be capable of full digital communications using both broadcast and polling protocol. Each detector shall be capable of performing independent fire detection algorithms. The fire detection algorithm shall measure sensor signal dimensions, time patterns, and combine different fire parameters to increase reliability and distinguish real fire conditions from unwanted deceptive nuisance alarms. The devices shall eliminate by digital filters, signal patterns that are not typical of fires. Devices not capable of combining different fire parameters or employing digital filters shall not be acceptable. Each detector shall have an integral microprocessor capable of making alarm decisions based on fire parameter information stored in the detector head. Distributed intelligence shall improve response time by decreasing the data flow between detector and analog loop controller. Detectors not capable of making independent alarm decisions shall not be acceptable. Maximum total analog loop response time for detectors changing state shall be 0.5 seconds. Each detector shall have a separate means of displaying communication and alarm status. A green LED shall flash to confirm communication with the analog loop controller. A red LED shall flash to display alarm status. The detector shall be capable of identifying up to thirty-two (32) diagnostic codes. This information shall be available for system maintenance. The diagnostic code shall be stored at the detector. Each smoke detector shall be capable of transmitting pre-alarm and alarm signals in addition to the normal, trouble, and need cleaning information. It shall be possible to program control panel activity to each level. It shall be possible to individually program each smoke detector to operate at any one of five (5) sensitivity settings. Each detector microprocessor shall contain an environmental compensation algorithm, which shall identify and set ambient environmental thresholds approximately six (6) times an hour. The microprocessor shall continually monitor the environmental impact of temperature, humidity, other types of contaminates, as well as detector aging. The process shall employ digital compensation to adapt the detector to both twenty-four (24) hour long term and four (4) hour short term environmental changes. The microprocessor shall monitor the environmental compensation value and alert the system operator when the detector approaches eighty percent (80%) and one hundred percent (100%) of the allowable environmental compensation value. Differential sensing algorithms shall maintain a constant differential between selected detector sensitivity and the learned base line sensitivity. The base line sensitivity information shall be updated and permanently stored at the detector approximately once every hour INTELLIGENT PHOTOELECTRIC TYPE SMOKE DETECTOR A. This Contractor shall furnish and install intelligent photoelectric type smoke detectors as shown on the Drawings and herein specified. The analog photoelectric type smoke detector shall utilize a light scattering type photoelectric smoke sensor to sense changes in air samples from its surroundings. The integral microprocessor shall dynamically examine values from the sensor and initiate an alarm based on the analysis of data. Systems using central /13

12 intelligence for alarm decisions shall not be acceptable. The detector shall continually monitor any changes in sensitivity due to the environmental affects of dirt, smoke, temperature, aging, and humidity. The information shall be stored in the integral processor and transferred to the analog loop controller for retrieval using a laptop PC or similar program/service tool. The detector shall be rated for ceiling installation at a minimum of thirty (30) feet centers and shall be suitable for wall mount applications. The percent smoke obscuration per foot alarm set point shall be field selectable to any of five (5) sensitivity settings ranging from one percent (1%) to three and a half percent (3-1/2%). The photoelectric smoke detector shall be suitable for direct insertion into air ducts up to 3 ft (0.91m) high and 3 ft (0.91m) wide with air velocities up to 5,000 ft/min. ( m/sec) without requiring specific duct detector housings or supply tubes. The detector shall be suitable for operation in the following environment: 1. Temperature: thirty-two (32) F to one hundred twenty (120) F. 2. Humidity: zero (0) to ninety-three percent (93%) relative humidity, noncondensing. 3. Elevation: no limit. B. Where noted on the Drawings, intelligent photoelectric type smoke detectors shall be furnished and installed by this Contractor complete with wire guards. C. An intelligent photoelectric type smoke detector, which will meet this Specification, is EST Model No. SIGA-PS complete with Model No. SIGA-SB base suitable for mounting over a four (4) inch octagonal or square outlet box INTELLIGENT THERMAL DETECTOR A. This Contractor shall furnish and install intelligent combination fixed temperature/rate-of-rise thermal detectors as shown on the Drawings and herein specified. The thermal detector shall have a low mass thermistor heat sensor and operate at a fixed temperature and at a temperature rate-of-rise. The detector shall continually monitor the temperature of the air in its surroundings to minimize thermal lag to the time required to process an alarm. The integral microprocessor shall determine if an alarm condition exists and initiate an alarm based on the analysis of the data. Systems using central intelligence for alarm decisions shall not be acceptable. The intelligent thermal detector shall have a nominal fixed temperature alarm point rating of one hundred thirty-five (135) F and a rate-of-rise alarm point of fifteen (15) F per minute. The intelligent thermal detector shall be rated for ceiling installation at a minimum of seventy (70) foot centers and be suitable for wall mount applications. B. An intelligent thermal detector which will meet this Specification is EST Model No. SIGA-HRS complete with Model No. SIGA-SB base suitable for mounting over a four (4) inch octagonal or square outlet box /13