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Home My WebLink AboutL75498 FIRE ALARM NARRATIVE FOR PERMIT-signedGarcia, Galuska & DeSousa Consulting Engineers Inc. 375 Faunce Corner Road – Suite D, Dartmouth, MA 02747-1258 J#685 005 00.00 L#75498/Page 1/April 1, 2021 TEL 508-998-5700 FAX 508-998-0883 email: info@g-g-d.com FIRE ALARM AND DETECTION SYSTEM NARRATIVE REPORT The following is a narrative report for the new construction of the Dennis-Yarmouth Intermediate/Middle School in South Yarmouth, MA in compliance with 901.2.1 of 780 CMR, Massachusetts State Building Code, Massachusetts amendments to the IBC Code 2015, Ninth Edition. 901.2.1.1a.i DESIGN METHODOLOGY FOR FIRE PROTECTION OF THE OCCUPANCY AND HAZARDS IN ACCORDANCE WITH APPLICABLE CODES AND NFPA STANDARDS Building Description: The project consists of the construction of the new Dennis-Yarmouth Intermediate/Middle School located at 286 Station Ave in South Yarmouth, MA 02664. The building will be two-stories and generally non-combustible construction. The building will be protected with an addressable fire alarm system with integral mass notification and an automatic sprinkler system. Use Group: Mixed Use Group: 780 CMR 302.3 Academic Building E: Educational Use S-1: Storage (accessory use) Gymnasium Building A-3: Gymnasium S-1: Storage (accessory use) Auditorium / Administration Building A-1: Auditorium A-3: Cafeteria E: Educational Use B: Office (accessory use) S-1: Storage (accessory use) Type of Construction: Academic/Gymnasium Buildings: Type 2B Auditorium/Administration Building: Type 2A Square Footage: First Floor 120,597 s.f. Second Floor 65,114 s.f. Total 185,711 s.f. Applicable Laws, Codes and NFPA Standards: 780 CMR Massachusetts State Building Code, 9th Edition (IBC 2015 W/Amendments) 521 CMR Massachusetts Accessibility Regulations (MAAB) 527 CMR Massachusetts Electrical and Fire Code (2020 NEC & NFPA 70 W/Amendments) NFPA 72-2013 “National Fire Alarm Code” Garcia, Galuska & DeSousa Consulting Engineers Inc. J#685 005 00.00 L#75498/Page 2/April 1, 2021 NFPA 241-2009 “Standard for Safeguarding Construction, Alteration, and Demolition Operations”. NFPA 90A “Standard for the Installation of Air Conditioning and Ventilation Systems”. 720.7.2.1.2.1 “Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment” Design Responsibility for Fire Alarm System: The Fire Alarm Professional Engineer of record is David M. Pereira, P.E. of Garcia, Galuska & DeSousa, Inc., Dartmouth, Mass., Consultants to the Project Architect, and assumes responsibility for the coordination of each specific Fire Alarm System for this project. The Engineer has provided a set of documents with scope of the work. The Contractor will submit shop drawings. Garcia, Galuska & DeSousa, Inc. will review and approve Shop Drawings and certify the final installation. Fire Protection System: The building is sprinklered. 901.2.1.1a.ii SEQUENCE OF OPERATION OF FIRE ALARM SYSTEM Fire Alarm System Fire alarm system will be fully addressable multiplex type and will include initiating devices, signaling devices and all required relays, modules, batteries, power supplies, wiring and other equipment for complete operation. The fire alarm system will have 60 hours of standby battery back-up plus 10 minutes of alarm. The system will be installed in accordance with NFPA 72. Fire Alarm Control Panel (FACP): When the fire alarm control panel receives a signal from any manual or automatic alarm device, the panel will go into “auto” mode and initiate a general alarm throughout the building and transmit an alarm signal to the fire department (see 901.2.1.1r), alarm transmission. Annunciation: Annunciation is provided by an 80-character Liquid Crystal Display (LCD) at the fire alarm control panel and LCD remote annunciator. Display indicates individual devices in alarm or trouble condition. Smoke Detectors and Heat Detectors: Upon activation, a signal will be sent to the fire alarm control panel, which will start an “auto” alarm throughout the building. Flow Switches: The building sprinkler system is monitored for water flow by paddle type water flow switches with adjustable retard devices located at the zone control valve assemblies. An alarm signal is sent to the FACP upon water flow condition in the sprinkler system which starts an “auto” alarm throughout the building. Manual Pull Station: Manual pull stations are located throughout the building. When a manual pull station is activated, a “manual” alarm will register. The manual alarms work the same way as “auto” alarms. Pull stations will be located in corridors at exit discharge doors and at all code required egress doors which exit to the exterior. Pull stations will be of the double-action type. Tamper Switches: All fire protection system control valves are monitored by supervisory tamper switches. When a valve is in the open position, the valve tamper device will be clear. When a valve is closed, a local trouble light and zone alert will signal at the FACP and remote annunciators. Garcia, Galuska & DeSousa Consulting Engineers Inc. J#685 005 00.00 L#75498/Page 3/April 1, 2021 Activation of mass notification system will send text messages and email to all system users on Owner’s list. Duct Smoke Detectors: Duct smoke detectors with sampling tubes will be provided on the return duct of heating and ventilating units of 2,000 CFM and over and will also be provided on the supply duct of units over 15,000 CFM. A remote test station with red and green LED’s, key operated will be provided for each duct smoke. Activation of any duct smoke will put the FACP into “auto” alarm mode and will also shut down the respective HVAC unit. Remote test stations will be located as directed by fire department. The supervisory signal shall notify the Personnel at a constantly attended location per IBC 907.3.1 Carbon Monoxide Detectors: Located within Mechanical Room, Nurse’s Suite, and Kitchen, system connected carbon monoxide detectors with integral alarms, when activated will sound alarm locally and transmit system trouble to FACP. Duct mounted carbon monoxide detectors will be mounted on supply duct of each rooftop unit. When activated will transmit supervisory alarm and shutdown respective rooftop unit. The existence of a ground fault, short, removal of a detector head, communications failure, failure of any component or wiring that might impair the function of the system or other related system fault will automatically: Sound an audible trouble signal and flash a trouble LED at the Fire Command Center. The audible will silence and the LED will light steadily upon acknowledgement of the condition until the condition is cleared. Subsequent conditions will cause this sequence to reoccur. Display the condition on the LCD display located at the Fire Command Center and corresponding remote LCD annunciators. 901.2.1.1a.iii TESTING CRITERIA TO BE USED FOR FINAL SYSTEM ACCEPTANCE A. System to be tested in accordance with NFPA 72 and as specified in the Construction Documents. 901.2.1.1b. BUILDING AND SITE ACCESS FOR FIRE-FIGHTING AND/OR RESCUE VEHICLE(S) AND PERSONNEL Site Access Arrangement: The building provides for 100% fire department vehicular access by means of hard surface paving. 901.2.1.1c. FIRE HYDRANT(S) LOCATION AND WATER SUPPLY INFORMATION Not required/not provided. 901.2.1.1d. TYPE/DESCRIPTION AND DESIGN LAYOUT OF THE AUTOMATIC SPRINKLER SYSTEM(S) Not required/not provided. 901.2.1.1e. AUTOMATIC SPRINKLER CONTROL EQUIPMENT LOCATION Not required/not provided. 901.2.1.1f. TYPE/DESCRIPTION AND DESIGN LAYOUT OF AUTOMATIC STANDPIPE SYSTEM(S) Not required/not provided. Garcia, Galuska & DeSousa Consulting Engineers Inc. J#685 005 00.00 L#75498/Page 4/April 1, 2021 901.2.1.1g. STANDPIPE HOSE VALVE(S) TYPE AND LOCATION Not required/not provided. 901.2.1.1h. FIRE DEPARTMENT CONNECTION TYPE(S) AND LOCATION Not required/not provided. 901.2.1.1i. TYPE/DESCRIPTION AND DESIGN LAYOUT OF THE FIRE PROTECTIVE SIGNALING SYSTEM “Auto Mode”: When the FACP goes into “auto mode” it will automatically: Visual alarms: Activate and synchronize all visual circuits throughout the building. The alarm devices will be provided with a flashing visual indicator which backlights the word “fire” and remains continually flashing while the alarm is activated. Voice/Tone Communications: The fire alarm tone or pre-recorded voice message will be capable of being automatically initiated from the FACP and transmitted to select speaker circuits or all speaker circuits. The fire alarm tone or pre-recorded voice message will be capable of being manually initiated from the FACP and transmitted to select speaker circuits or all speaker circuits by manual selection of control switches. Manual operation of individual speaker circuit select switches will also light the individual “Speaker Circuit On” LED indicator for the connected circuit at the FACP. Manual override via the hand-held microphones will take priority over any and all alarm tone or pre-recorded voice message so that voice announcements can be made. The pre-recorded voice message will be coordinated with the system supplier and the Fire Department. 901.2.1.1j. FIRE ALARM SIGNALING SYSTEM(S) CONTROL EQUIPMENT AND REMOTE ANNUNCIATOR LOCATION The fire alarm control panel will be located in main Electric Room A118, Area “A”, and remote LCD annunciators will be located in the Entry Vestibules B100 on the first floor with grade access as shown on the fire alarm drawings. A white beacon and electric bell will be placed over each fire department connection. A red strobe will be located on the exterior over the main entrance Vestibule B121. 901.2.1.1k. TYPE/DESCRIPTION AND DESIGN LAYOUT OF THE SMOKE CONTROL OR EXHAUST SYSTEM(S) Not required/not provided. Garcia, Galuska & DeSousa Consulting Engineers Inc. J#685 005 00.00 L#75498/Page 5/April 1, 2021 901.2.1.1l. SMOKE CONTROL OR EXHAUST SYSTEM(S) CONTROL EQUIPMENT LOCATION Auditorium: The proscenium curtain will be activated by normally open rate-of-rise fixed temperature heat detectors and by two (2) auxiliary manual release devices, one at each side. Activation of heat detectors will put FACP into “auto” alarm mode. Stage roof vents will open manually by manual release devices. Vents will also be electrically operated and will open automatically by integral approved heat-activated devices. Vents will also be double interlocked to open upon activation of any smoke detector in the stage/auditorium and activation of the area sprinkler zone flow switch. Activation of any automatic fire alarm device will put FACP into “auto” alarm mode. Elevator Hoistway Vent: A 120-volt fire rated damper for smoke relief located in the hoistway will be held closed and open upon power failure or with a control module actuated by any fire alarm initiating device of the buildings fire alarm system. 901.2.1.1m. BUILDING SAFETY SYSTEM FEATURES (AUXILIARY FUNCTION) REQUIRED TO BE INTEGRATED AS PART OF THE FIRE ALARM SIGNALING SYSTEM(S) Elevator Recall: Smoke detectors located in each elevator lobby, machine room and fixed temperature heat detector at top of hoistway, in addition to sending system into “Auto” alarm mode will also initiate elevator recall for fire fighters service. Five (5) control modules will be located in the elevator machine room. The smoke detector located in the designated recall lobby will actuate the first control module. The smoke detectors in the remaining elevator lobbies will actuate the second control module. The smoke detector in the machine room will actuate the third control module (where the elevator machine room is located at the designated level, that machine room smoke detector will also actuate the first control module). The machine room exhaust fan will be energized upon actuation of the third control module. The fourth control module will actuate the hoistway fire damper. The heat detector at top of hoistway will actuate the fifth control module and will also actuate top hat outside in corridor. Magnetic Hold Opens: When FACP goes into “auto-mode” it will automatically activate programmable output relays to release all magnetically held doors, fire/smoke dampers, fire shutters, etc. 901.2.1.1n. TYPE/DESCRIPTION AND DESIGN LAYOUT OF THE FIRE EXTINGUISHING SYSTEM(S) Not required/not provided. 901.2.1.1o. FIRE EXTINGUISHING SYSTEM CONTROL EQUIPMENT LOCATION Kitchen Hood: The hood fire suppression system control panel, upon activation, will put the FACP into “auto” alarm mode and will also shut down the hood’s supply fan, turn off power to the gas solenoid and turn off power to all items under the kitchen hood. The hood exhaust fan will continue to operate. Fire actuated dampers if installed in the exhaust outlet shall shut down the exhaust fan upon actuation. It shall not be required to restart the hood exhaust fan when the extinguishing system is activated if the exhaust fan and all cooking equipment served by the fan had previously been shut down. Shutoff devices shall require manual reset. 901.2.1.1p. FIRE PROTECTION SYSTEM(S) EQUIPMENT ROOM LOCATION Not required/not provided. Garcia, Galuska & DeSousa Consulting Engineers Inc. J#685 005 00.00 L#75498/Page 6/April 1, 2021 901.2.1.1q. FIRE PROTECTION SYSTEM(S) EQUIPMENT IDENTIFICATION AND OPERATION SIGNS All smoke detectors will be numbered with adhesive numbers to facilitate identification. 901.2.1.1r. FIRE PROTECTION SYSTEM(S) ALARM/SUPERVISORY SIGNAL TRANSMISSION METHOD AND LOCATION The fire alarm system alarm transmission method will be via UL listed remote central station via UL listed digital dialer connected with telephone lines. 901.2.1.1s. FIRE COMMAND CENTER LOCATION The FACP is located in main Electric Room A118. 901.2.1.1t. TYPE/DESCRIPTION AND LOCATION OF ANY EMERGENCY ALARM SYSTEM Not required/not provided. 901.2.1.1u. TYPE/DESCRIPTION AND LOCATION OF ANY ALTERNATIVE FIRE SUPPRESSION SYSTEM OR PROTECTION Not required/not provided. 901.2.1.1v. TYPE/DESCRIPTION AND LOCATION OF ANY CARBON MONOXIDE PROTECTION Carbon Monoxide Detectors: Located within Mechanical Room, Nurse’s Suite, and Kitchen, system connected carbon monoxide detectors with integral alarms, when activated will sound alarm locally and transmit system trouble to FACP. Duct mounted carbon monoxide detectors will be mounted on supply duct of each rooftop unit. When activated will transmit supervisory alarm and shutdown respective rooftop unit. 901.2.1.1w. EMERGENCY RESPONDER RADIO COVERAGE TYPE/LOCATION The BDA System will be monitored for “low battery, charger fail, loss of AC power, signal booster failure, antenna malfunction”. 906 PORTABLE FIRE EXTINGUISHERS The plans include provisions of fire extinguishers throughout the building spaced in accordance with the requirements of NFPA-10. SAFEGUARDS DURING CONSTRUCTION The fire alarm system is to be installed in the building as the construction progresses. It is understood that safety during construction is paramount. During the course of construction, the Engineer, Architect and Contractor will periodically meet to review the Contractor’s construction plan.