Fire Alarm System

DESIGN GUIDELINES and SPECIFICATIONS

 

Fire Alarm Design Guidelines

 In existing buildings where the fire alarm system is being replaced, the new system shall be completely installed and approved prior to the disconnection and removal of the old system.

An Addressable Fire Alarm System shall be provided throughout the building to satisfy all National, State and Local Codes, including A.D.A. Guidelines.

The Fire Alarm System shall include a main control panel with battery back-up, a remote annunciator panel, all devices, backboxes, and amplifiers/power supplies required.

The fire alarm system shall report to the local security system panel for release of all electro-magnetically locked doors and notification to the fire department.

In addition to all devices required by the OBBC and NPFA 72, fire alarm initiating and annunciating appliances shall be provided as follows:

Area Smoke Detectors:

Electrical Rooms                                   Laboratories

Communication Closets                       Storage Rooms

SER Rooms                                           Residence Hall Suites

Mechanical Rooms                               Elevator Machine Rooms and Lobbies

Corridors/Atriums                                  Rooms with high value equipment or                                                                        research material

Audible or Visual Annunciating Appliances:  

Classrooms                                            Toilet Rooms

Lecture Halls                                          Resident Room Suites

All fire alarm devices and equipment shall be flush mounted in finished areas, unless otherwise noted.  All masonry walls shall be channeled, patched and painted to match existing finishes, as directed by CWRU.

SPECIAL CONDITIONS 

SC-1:         The Contractor shall have a CWRU service vehicle permit for all vehicles parked at the site

SC-2:         Work hours in the building are 7:30 am to 4:30 pm.

SC-3:        The building is open to the public from 9:00 am to 5:00 pm.  All noisy construction operations shall be performed prior to the public hours.

SC-4:        While the intent to this project is to provide a complete fire alarm system upgrade, the building contains sensitive finishes.  The Contractor shall utilize extreme care while working near sensitive finishes and shall provide protection as directed by Owner.  Such protection shall include relocation and storage of removable artwork and covering of all permanent artwork.  All methods of protection shall be approved by the owner prior to commencing work.  All liabilities for damage occurring during the project shall be borne by the Contractor under a separate agreement with the Owner.

SC-5:       The Contractor shall clean and protect all finishes in the work areas to minimize dust transmission throughout the building, vacuum carpeting as required (minimum once a day) and shall leave work area in a “like new” condition.

SC-6:        The building is utilized for individual testing.  The Contractor shall coordinate with the Owner the accessibility of testing areas and work operations around the testing areas.

SC-7:        Areas of work require access by appointment, premium time, and/or protective clothing.  The Contractor shall include all costs associated with working in these areas in the bid.

SC-8:         The existing fire alarm system shall remain in use until the new fire alarm system has been tested and approved.  After acceptance of the new fire alarm system, the Contractor shall disconnect and remove the existing fire alarm system and repair all surfaces to a like new condition.

SC-9:        The Contractor is responsible for painting and patching all surfaces where existing equipment or wiring has been removed.  All painting shall cover a wall from corner to corner and floor to ceiling and shall cover the ceiling from wall to wall or break in ceiling plane.

SC-10:     Exposed conduits in unfinished spaces shall have a band of red paint every five feet.

SC-11:      All wiring shall be in conduit. The minimum conduit size for all wiring is 1/2”.  The use of wiremold is permitted on all stone walls or ceilings with plaster on concrete.  Wiring shall be concealed in all stud walls or suspended ceilings.  All wiremold shall be painted to match adjacent surfaces. Above accessible ceilings, plenum rated wiring may be utilized, except in residence halls. The wiring shall be supported by wall mounted bridal rings at approximately 36” on center.

SC-12:      The Contractor shall provide (3) copies of the Operating and Maintenance Manual for the fire alarm system.  These manuals shall include all cut sheets and wiring diagrams as provided by equipment manufacturer.

SC-13:      The alarm system shall provide a general evacuation signal throughout the building when activated.

SC-14:       The costs of all bonds, permits, etc. shall be included in the bid.

SC-15:      The Contractor shall submit with his bid a work schedule for this project, which includes milestones as identified by CWRU.

SC-16:      System testing shall be completed during normal business hours, and pre-scheduled with CWRU.

SC-17:      The Contractor(s) is responsible for protecting all occupant’s private property within the construction area.  All methods of protection shall be approved by the Owner prior to commencing work.

SC-18:      The building will be occupied during the construction period. A class schedule will be provided as soon as available.  Noisy construction operations shall be suspended during final and mid-term exams.

SC-19:      Areas of the building operate 24 hours per day, 7 days a week.  Extreme care shall be utilized while working in these areas to minimize noise transmission and dust generation.

SC-20:      Areas of work have Asbestos Containing Materials (ACM).  The contractor shall coordinate with the Owner all work in areas with ACM.  All work in or on ACM or demolition of ACM shall be provided by the Owner’s asbestos abatement contractor under a separate agreement with the Owner.

SECTION 16020 - ELECTRICAL DEMOLITION

 PART 1 - GENERAL

1.1             RELATED WORK SPECIFIED ELSEWHERE

  1. Section 16010 - Electrical General Provisions

  2. Section 16050 - Basic Materials and Methods

1.2             SCOPE

  1. Electrical equipment indicated on the Drawings is shown to indicate the extent of demolition only, and is not intended to be a record drawing of the existing conditions.  The Drawings and Specifications establish the minimum standards for workmanship and materials.

  2. Include all labor, materials, equipment, services, and permits necessary for completion of the demolition work.  Provide protection for all adjacent areas before, during and after execution of the demolition work.

  3. “Electrical equipment” as used in this section shall refer to fire alarm devices, conduit, wire and all other power and communication system devices.

  4. The existing fire alarm system shall remain in use until the new fire alarm system has been tested and approved.  After acceptance of the new fire alarm system, the Contractor shall disconnect and remove the existing fire alarm system.

PART 2 - PRODUCTS

  1. Provide materials and equipment for completion of the demolition work as described within the Specifications and on the Drawings.
  2. Materials and equipment shall be new and U.L. labeled for the application.

PART 3 - EXECUTION

3.1               GENERAL DEMOLITION WORK

  1. The Contractor shall remove and/or relocate all of the existing electrical work made necessary because of project alterations as indicated or implied on the Contract Documents of all trades.  All existing electrical equipment and systems not affected by these changes shall remain and shall be protected whether shown on the Drawings or not. 

The Contractor shall maintain existing circuit continuity as described in the Specifications and on the Drawings, or as required for continued operation of the electrical equipment and systems.

  1. All demolition work under this Contract shall be accomplished by the Contractor in complete accordance with the Construction Procedure and Progress Schedule specified under Division 1.  Proposal shall include any special phasing requirements related to demolition work as described in the Division 1 Specifications. 

  2. Electrically disconnect equipment to be removed at the point of power source. Remove conduit and wiring from equipment to be removed complete to the point of power source.

  3. Where building systems or circuits are interrupted because of the demolition work, they shall be rerouted or relocated, modified and reconnected to provide a continuous system.

  4. All cutting, patching, finishing, etc., for removed and relocated electrical equipment shall be included as part of the Electrical Work.  All holes and damage caused by the demolition work shall be properly patched with suitable materials to match existing surfaces.  All painting shall cover a wall from corner to corner and floor to ceiling and shall cover the ceiling from wall to wall or break in the ceiling plane.

  5. All existing equipment to be salvaged by the Owner shall be carefully removed and stored on site by the Contractor for review by the Owner.  All equipment acceptable to the Owner shall be delivered by the Contractor to the Owner’s storage facility and all other materials, equipment and debris shall become the property of the Contractor and shall be removed from the site.

  6. In all cases where existing branch circuit conduit and wiring is to be re-used within the remodeled area, the Contractor shall test for grounding continuity and shall test the existing branch circuit wiring as though new, in accordance with the testing procedures outlined elsewhere in these Specifications.

  7. All empty conduits from demolished fire alarm wiring shall be disconnected and removed. Where conduits are embedded in the structure, cap existing empty conduits, provide blank cover plates and plug open knockouts in existing electrical equipment.

3.2             DISPOSAL

  1. Properly dispose of all ionization type smoke detectors during demolition work as required by Local, State and Regional Codes.

  2. Properly dispose of batteries during demolition work as required by Local, State and Regional Codes.

END OF SECTION

 

SECTION 16725 - ADDRESSABLE/VOICE FIRE ALARM SYSTEM

(FOR USE IN HIGH RISE BUILDINGS OR BUILDINGS REQUIRING VOICE EVACUATION.  REPLACE VOICE DEVICES WITH HORNS IN OTHER BUILDINGS.)

 PART 1 - GENERAL

1.1       WORK INCLUDES

Addressable/Voice Fire Alarm System

1.2        RELATED WORK SPECIFIED ELSEWHERE

A.       Section 16010 - Electrical General Provisions

B.       Section 16050 - Basic Materials and Methods

1.3        QUALITY ASSURANCE

  1. The Fire Alarm System shall be listed as a product of a single fire alarm system manufacturer, shall bear the U.L. label and shall meet the requirements of the NEC, NFPA, ASME/ANSI and all State and Local Codes. All control equipment shall be listed under U.L. category UOJZ as a single control unit.  All system components shall be FM approved.

  2. All control equipment shall be provided with transient protection to comply with UL864 requirements.

  3. The system controls shall be U.L. listed for Power Limited Applications.

  4. The complete system shall conform to the latest requirements of the American’s With Disabilities Act (ADA).

  5. State of Ohio Certification for installation of Fire Alarm Systems shall be provided prior to start of installation.

1.4        DESCRIPTION OF WORK

  1. Furnish and install a complete, operating, multiplexed, Addressable/Voice Fire Alarm System as specified herein.  Include sufficient wiring, conduit, terminations, electrical boxes, and all other necessary material for a complete operating system.

  2. The Fire Alarm System shall be microprocessor based and shall allow for loading and editing special instructions and operating sequences.  The system shall be capable of on site programming to accommodate system expansion and facilitate changes in operation.  All software operations shall be stored in a non-volatile programmable memory within the Fire Alarm Control Panel.  Loss of primary and secondary power shall not erase the instructions stored in memory. Full flexibility for selective input/output control functions based on ANDing, ORing, NOTing, timing, and special coded operations shall also be incorporated in the resident software programming of the system.

  3. The programmable software shall allow for full configuration of initiating circuits so that hardware shall not be necessary to accommodate changing sensing of normally open contact devices to sensing of normally closed contact devices, changing sensing of normally open contact devices to sensing of a combination of current limited and non-current limited devices on the same circuit and being able to differentiate between the two, and changing from a non-verification circuit to a verification circuit.  The software shall allow for configuration of indicating appliance and control circuits so that hardware shall not be necessary to accommodate changing a non-coded indicating appliance circuit to a coded circuit.

  4. The system shall have the capability of recalling alarms and trouble conditions in chronological order for the purpose of recreating an event history.

(USE E FOR SYSTEMS IN EXISTING BUILDINGS AS DIRECTED BY OWNER.)

  1. All panels and peripheral devices shall be furnished to the Contractor by the Owner.  The fire alarm system shall be by Fire Control Instruments as represented by Continental Fire and Security, Inc. (Mr. Terrence Kovacs, 216-749-5522).

(USE E AND F FOR SYSTEMS IN NEW CONSTRUCTION.)

  1. All panels and peripheral devices shall display the manufacturer's name on each component.  The catalog numbers specified under this section are those of Simplex Time Recorder Co. 

  2. Fire Control Instruments, FCI, (as distributed by Continental Fire and Security) shall be an acceptable alternate manufacturer.

1.5       DESCRIPTION OF OPERATION

  1. The system alarm operation after activation of any manual station, automatic detection device, or sprinkler flow switch shall be as follows:

  1. All alarm indicating devices shall operate.

  2. All audible alarm indicating devices shall sound a continuous fire alarm signal (custom voice message or tone) until the system is reset.

  3. All visible alarm indicating devices shall flash continuously until the system is reset.

  4. All doors normally held open by door control devices shall release.

  5. A supervised signal to notify the campus security service shall be activated.

  6. All smoke dampers shall close as described on the Drawings.

 (FOR HIGH RISE BUILDINGS, ATRIUMS, ETC VERIFY ITEMS 7, 8b AND 8c WITH MECHANICAL ENGINEER AND LOCAL FIRE DEPARTMENT)

  1. The Smoke Control System shall be activated as described on the Drawings.

  2. All mechanical air handling units with duct smoke detectors shall shutdown in accordance with NFPA 90.

  1. Provide duct smoke detectors in return ductwork (Per Ohio Mechanical Code, 606.2.1) and supply ductwork (Per NFPA 90A, 4-4.2(1))for all air handling units with greater than 2,000 CFM of supply air distribution.

  2.  Upon reset of the fire alarm system, mechanical air handling units shall sequentially start up to minimize power demand.

  3.  “On/Off/Auto” switches with software for the automatic mode shall be provided in the Control Panel, with separate and distinct “on” and “off” LED indicators.  Manual control shall override the automatic function.

  1. The alarm activation of any elevator control smoke detector shall, in addition to the other operations listed, cause the elevator cabs to be recalled according to the following sequence:

  1. If the alarmed detector is on any floor other that the main level of egress, the elevator cabs shall be recalled to the main level of egress.

  2. If the alarmed detector is on the main egress level, the elevator cabs shall be recalled to the predetermined alternate recall level as determined by the local authority having jurisdiction.

  3. All elevator control detectors shall be wired directly to the elevator controller through dedicated contacts on the detector base, and they shall be monitored by an addressable interface module.

  1. The alarm activation of any elevator control heat detector shall, in addition to the other operations listed, cause the power to the elevator controllers to shutdown as described on the Drawings.

  2. All security system doors shall unlock.

  3. All Sprinkler and Fire Suppression Control Panels shall be monitored and/or activated as described on the Drawings.

(EDIT REMOTE ANNUNCIATOR IN B, DI, N, O, AND

V IF NOT REQUIRED IN PROJECTS.)

  1. Alarms shall be displayed on an alphanumeric LCD display.  The system alarm LED shall flash on the Control Panel (and the Remote Annunciator) until the alarm has been acknowledged.  Once acknowledged, this same LED shall latch on.  A subsequent alarm received from another zone shall flash the system alarm LED on the Control Panel (and the Remote Annunciator).  The LCD display shall show the new alarm information.  A pulsing alarm tone shall occur within the Control Panel (and the Remote Annunciator) until the event has been acknowledged.

  2. The activation of any system smoke detector shall initiate an Alarm Verification operation whereby the Control Panel will reset the activated detector and wait for a second alarm activation.  If, within one (1) minute after resetting, a second alarm is reported from the same or any other smoke detector, the system shall process the alarm as described previously.  If no second alarm occurs within one minute the system shall resume normal operation.  The Alarm Verification shall operate only on smoke detector alarms.  Other activated initiating device signals shall be processed immediately.  The alarm verification operation shall be selectable by zone.

  1. The Control Panel shall have the capability to display the number of times a detector has gone into a verification mode.  Should this smoke verification tally reach a pre-programmed number, a trouble condition shall occur.

  1. The Control Panel shall have a dedicated supervisory service LED and a dedicated supervisory service acknowledge switch.
  1. The activation of any standpipe or sprinkler valve supervisory tamper switch shall activate the system supervisory service audible signal and illuminate the LED at the Control Panel (and the Remote Annunciator).  Differentiation between valve tamper activation and opens and/or grounds on the initiation circuit wiring shall be provided.

  2. Pressing the Supervisory Service Acknowledge Key will silence the supervisory audible signal while maintaining the Supervisory Service LED "on" indicating the off‑normal condition.

  3. Restoring the valve to the normal position shall cause the Supervisory Service LED to extinguish, indicating restoration to normal.

  1. A manual evacuation (drill) switch shall be provided to operate the alarm indicating appliances without causing other control circuits to be activated.  Should a true alarm occur while in the drill mode, all alarm functions would occur as described previously.

  2. The system shall have a single key that will allow the operator to display all alarms, troubles, and supervisory service conditions including the time of each occurrence.

  3. All doors normally held open by door control devices shall not have battery back-up and shall release upon AC power failure.

  4. The actuation of the "Enable Walk Test" program at the Control Panel shall activate the "Walk Test" mode of the system which shall cause the following to occur:

  1. The security system circuit connection shall be bypassed.

  2. Control relay functions shall be bypassed.

  3. The Control Panel shall show a trouble condition.

  4. The alarm activation of any initiation device shall cause the audible signals to activate voice annunciation of the device’s zone or system address.

  5. The Control Panel shall automatically reset itself after signaling is complete.

  6. Any momentary opening of an initiating or indicating appliance circuit wiring shall cause the audible signals to sound for 4 seconds indicating a trouble condition.

  7. The system shall have the capacity of 8 (minimum) distinctive walk test groups, such that only a portion of the system need be disabled during testing.

  1. The system shall contain independently supervised initiating device circuits.  The alarm activation of any initiation circuit shall not prevent the subsequent alarm operation of any other initiation circuit.  The system shall contain two spare initiating device circuits.

  2. There shall be supervisory service initiation device circuits for connection of all sprinkler valve supervisory (tamper) switches.  Device activation shall cause a supervisory alarm at the Control Panel.

  3. There shall be independently supervised and independently fused indicating appliance circuits for alarm indicating devices.  Disarrangement conditions of any circuit shall not affect the operation of other circuits.

  4. Auxiliary manual controls shall be supervised so that an "off normal" position of any switch shall cause an "off normal" system trouble.

  5. Each independently supervised circuit shall include a discrete LCD readout to indicate disarrangement conditions per circuit.

  6. The incoming power to the system shall be supervised so that any power failure must be audibly and visually indicated at the Control Panel (and the Remote Annunciator).  A green "power on" LED shall be displayed continuously while incoming power is present.

  7. The system batteries shall be supervised so that a low battery condition or disconnection of the batteries shall be audibly and visually indicated at the Control Panel (and the Remote Annunciator).

  8. The System Modules shall be electrically supervised for module placement.  Should a module become disconnected the system trouble indicator shall illuminate and the audible trouble signal shall sound.

  9. The system shall have provisions for disabling and enabling all circuits individually for maintenance or testing purposes.

  10. There shall be independent supervision for opens of any mechanical system control output wiring.

A discrete trouble LCD readout per output circuit shall be provided for indication.  A ground condition of any mechanical system control output wiring shall indicate a common ground trouble at the Control Panel.

  1. The Control Panel shall receive 120 VAC power as indicated on the Drawings.

  2. The system shall be provided with sufficient battery capacity to operate the entire system upon loss of normal 120 VAC power in a normal supervisory mode for a period of twenty‑four (24) hours with 5 minutes of alarm operation at the end of this period.  The system shall automatically transfer to the standby batteries upon power failure.  All battery charging and recharging operations shall be automatic.

  3. All external circuits requiring system operating power shall be 24VDC and shall be individually fused at the Control Panel.

  4. The Sprinkler System Fire Pump shall be monitored, with visual signals at the Fire Alarm Control Panel to indicate “Fire Pump Running”, “Loss of Fire Pump Power”, and “Fire Pump Phase Reversal”.  (Duplicate signals shall be provided at the Remote Annunciator).

PART 2 - PRODUCTS

2.1       NOT APPLICABLE

(USE 2.1 ABOVE AND DELETE REMAINDER OF PART 2  WHEN EQUIPMENT IS FURNISHED BY OWNER OTHERWISE, EDIT PART 2 BELOW FOR EQUIPMENT REQUIRED IN PROJECT.)

2.2        FIRE ALARM CONTROL PANEL

  1. The Control Panel shall be flush or surface mounted.  The Control Panel construction shall be modular with solid state, microprocessor based electronics.  It shall display only those primary controls and displays essential to operation during a fire alarm condition.  Keyboards shall not be required to operate the system during fire alarm conditions.  An integral audible device shall sound during Alarm, Trouble or Supervisory conditions.  This audible device shall sound differently during each condition to distinguish one condition from another without having to view the panel.  This audible device shall also sound during each keypress to provide an audible feedback to ensure that the key has been pressed properly.

  1. The primary controls such as:  80 character LCD display, alarm LED, supervisory service LED, trouble LED, power on, Alarm Acknowledge key, Supervisory Acknowledge key, Trouble Acknowledge key, Alarm Silence key, and System Reset key shall be visible through a front access panel.

  2. A minimum of five programmable secondary control switches and LED's shall be available behind an access door.

  3. The Control Panel shall provide for testing, condition listing, point activation/deactivation, software revisions and point listings. For maintenance purposes all points shall be available from the point lists menu.

  4. The Control Panel shall have a 2 line x 40 character liquid crystal display.

  5. Under normal condition the front panel shall display a "System is Normal" message and the current time and date.  Should an abnormal condition be detected the appropriate LED (Alarm, Supervisory or Trouble) shall flash.  The panel audible signal shall pulse for alarm conditions and sound steady for trouble and supervisory conditions.  The LCD shall display the following information relative to the abnormal condition of a point in the system:  40 character custom location label, type of device (smoke, pull station, waterflow), and point status (alarm, trouble).

  6. System Reset:

  1. The SYSTEM RESET button shall be used to return the system to its normal state after an alarm condition has been remedied. The LCD display shall step the user through the reset process with simple English Language messages.  The message "SYSTEM RESET IN PROGRESS" shall first be displayed followed by the message "SYSTEM RESET COMPLETED"; and finally, "SYSTEM IS NORMAL" should all alarm conditions be cleared.

  2. Should an alarm condition continue to exist the message "SYSTEM RESET IN PROGRESS" shall be followed by the message "SYSTEM RESET ABORTED" and the system shall remain in an abnormal state. System control relays shall not reset. The tone alert and the Alarm LED shall be on. The display shall indicate the total number of alarms and troubles present in the system along with a prompt to use the ACK keys to review the points. These points shall not require acknowledgment if they were previously acknowledged.

  3. Should the Alarm Silence/Reset Inhibit function be active, an Alarm Silence or System Reset key press shall be ignored.

The message "ALARM SILENCE/SYSTEM RESET INHIBITED" shall be displayed for a short time to indicate the action was not taken. As feedback to the operator, the message "ALARM SILENCE/SYSTEM RESET ALLOWED" shall be displayed when the inhibit function times out.

  1. The system shall be capable of logging and storing 300 events in an alarm log and 300 events in a trouble log.  These events shall be stored in a battery protected random access memory.  Each recorded event shall include the time and date of that event's occurrence.

  2. The system shall be capable of being tested by one person. While in the testing mode the alarm activation of an initiating device circuit shall be silently logged as an alarm condition in the historical data file.  The panel shall automatically reset itself after logging of the alarm.  The momentary disconnection of an initiating or indicating device circuit shall be silently logged as a trouble condition in the historical data file.  The Control Panel shall automatically reset itself after logging of the trouble condition.  The Control Panel shall be capable of supporting up to 8 separate testing groups whereby one group of points may be in a testing mode and the other (non-testing) groups may be active and operate as programmed per normal system operation.  After testing is complete, testing data may be retrieved from the system in chronological order to ensure device/circuit activation.

  3. There shall be four (4) access levels with level 4 being the highest level.  Level 1 actions shall not require a passcode.  Passcodes shall consist of up to ten (10) digits.  Changes to passcodes shall only by made by authorized personnel.  Access to a level will only allow the operator to perform all actions within that level plus all actions of lower levels, not higher levels.

  4. Provide cabinets of sufficient size to accommodate the equipment.  Cabinets shall be equipped with locks and transparent door panels providing freedom from tampering yet allowing full view of the various lights and controls.

2.2      REMOTE ANNUNCIATOR

  1. The Remote Annunciator shall be serial  LCD type.  The Annunciator shall be flush mounted.   The Annunciator shall have a beige enamel finish and shall provide two line by 40 character LCD display.  The Annunciator shall provide a common alarm and trouble circuit consisting of:
  1. Control switches for: alarm silence, trouble silence, system reset,  manual evacuation, and other control functions duplicating the Control Panel switches.  A key "enable" switch shall be provided to activate or deactivate the control switches.

  2. Tone Alert - Duplicates the Control Panel tone alert during alarm & trouble conditions.

  3. System trouble LED.

  4. Power on LED.

2.3      PERIPHERAL DEVICES

 
 
  1. Magnetic door holders shall have an approximate holding force of 35 lbs and be 24VDC.  The door portion shall have a stainless steel pivotal mounted armature with shock absorbing nylon bearing.  Unit shall be capable of being either surface, flush, semi-flush, or floor mounted as required.  Door holders shall be UL listed.

1. Provide wall extension kits at locations required.

2.4      ADDRESSABLE NETWORK COMMUNICATION SYSTEM

  1. The system shall provide communication with initiating and control devices individually.  All of these devices shall be individually annunciated at the Control Panel. Annunciation shall include the following conditions for each point:
  1. Alarm

  2. Trouble

  3. Open

  4. Short

  5. Device missing/failed

  1. All addressable devices shall have the capability of being disabled or enabled individually.

  2. Up to 127 addressable devices may be multidropped from a single pair of wires. Systems that require factory reprogramming to add or delete devices are unacceptable.

  3. The communication format shall be a completely digital poll/response protocol to allow tapping of the circuit wiring.  A high degree of communication reliability must be obtained by using error checking routines for address codes and for the data transmission portion of the protocol.  Systems that do not utilize full digital transmission protocol are not acceptable.

  4. Each addressable device must be uniquely identified by an address code entered on each device at time of installation.  The use of jumpers to set an address will not be acceptable due to the potential of vibration and poor contact. Device identification schemes that do not use uniquely set addresses but rely on electrical position along the communication channel are unacceptable. 

The system must verify that the proper type device is in place and matches the desired software configuration.

  1. Wiring types shall be approved by the equipment manufacturer.

  2. Addressable Device Types

  1. The Control Panel shall be capable of communicating with all types of addressable devices.

  2. Addressable smoke and heat detector heads shall be pluggable into their bases.  The bases shall contain electronics that communicate the detector status (normal, alarm, trouble) to the Control Panel over two wires.  The same two wires shall also provide power to the base and detector.  Different detector heads (smoke or heat) shall be interchangeable.  Upon removal of the head, a trouble signal will be transmitted to the Control Panel.

  1. Analog Addressable Smoke and Heat Detectors

  1. The smoke detectors shall be of the photoelectric type and shall communicate actual smoke chamber values to the Control Panel. 

  2. The heat detectors shall sense within a temperature range of 32°F to 158°F.  The Control Panel shall be capable of sensing either a set point of 135°F, or a rate-of-rise of 15°F per minute for fire sensing.

For utility sensing, a set point may be chosen within the stated range and the Control Panel programming shall be capable of using that information to determine specific responses such as warning of failure of local temperature controls.

  1. The detectors shall be listed to UL Standard 268 and shall be documented as compatible with the control equipment to which they are connected.  They shall be listed for both ceiling and wall mount applications.

  2. Each base shall contain an LED that shall flash each time it is scanned by the Control Panel (once every 4 seconds).  When the Control Panel determines that a detector is in an alarm or a trouble condition, the Control Panel shall command the LED on the base to illuminate continuously, indicating the abnormal condition.

  3. Each detector shall contain a magnetically actuated test switch to provide for easy alarm testing.

  4. Each detector shall be scanned by the Control Panel for its type identification to prevent inadvertent substitution of another detector type.  The Control Panel shall operate with the installed device but shall initiate a “Wrong Device” trouble condition until the proper type is installed or the programmed detector type is changed.

  5. The detector’s electronics shall be immune from false alarms caused by EMI and RFI.

  6. Smoke detectors shall be smoke density measuring devices having no self contained alarm set point (fixed threshold).  The alarm decision for each detector shall be determined by the Control Panel. The Control Panel shall determine the condition of each detector by comparing the current sensor value to the stored values.

  7. The Control Panel shall maintain a moving average of the detector’s smoke chamber value to automatically compensate (move the threshold) for dust and dirty conditions that could affect detection operations.  The system shall automatically maintain a constant smoke obscuration sensitivity for each detector (via the floating threshold) by compensating for environmental factors.  Photoelectric smoke obscuration sensitivity shall be adjustable to within 3% of either limit of the UL window (0.5% to 4.0%) to compensate for any environment.

  8. The system shall automatically indicate when an individual smoke or heat detector needs cleaning.  When a detector’s average value reaches a predetermined level, a “DIRTY SENSOR” trouble condition shall be audibly and visibly indicated at the Control Panel for the individual detector.  Additionally, the LED on the base shall continuously illuminate. If a “DIRTY SENSOR” is left unattended, and its average value increases to a second predetermined value, an “EXCESSIVELY DIRTY SENSOR” trouble condition shall be indicated at the Control Panel for the individual detector. 

To prevent false alarms, these “DIRTY” conditions shall not decrease the amount of smoke obscuration necessary for smoke detector activation.  For scheduling of maintenance, the Control Panel shall be able to generate an “ALMOST DIRTY” indication for any detector approaching a “DIRTY” trouble condition.

  1. The Control Panel shall continuously perform an automatic self-test routine on each detector which shall functionally check the electronics and ensure the accuracy of the values being transmitted to the Control Panel.  Any detector that fails this test shall indicate a “SELF TEST ABNORMAL” trouble condition with the detector location at the Control Panel.

  2. An operator at the Control Panel, having a proper access level, shall have the capability to manually access the following information for each detector:

  • primary status

  • device type

  • present average value

  • present sensitivity selected

  • peak detection values

  • sensor range (normal, dirty, etc.)

Values shall be in “percent of smoke obscuration” format so that no interpretation is required by the operator.
  1. Detectors shall be compatible with other addressable detectors, addressable manual stations, and addressable interface modules on the same circuit.  The detectors shall also fit into a non-addressable base that is capable of being monitored by an addressable interface module.

  2. For elevator control smoke and heat detectors, provide (1) N.O. and (1) N.C. auxiliary contact. The detector shall be monitored through an addressable interface module.

  1. Analog addressable photoelectric duct smoke detectors shall be non-polarized 24VDC type which obtains operating power from the supervisory current in the fire alarm detection loop.

  1. The detectors shall be capable of being reset at the Control Panel.

  2. For maintenance purposes, it shall be possible to clean the duct housing sampling tubes by accessing them through the duct housings front cover.

  3. To minimize false alarms, voltage and RF transient suppression, a smoke signal verification circuit, and an insect screen shall be provided.

  4. Auxiliary SPDT relays and key operated test stations shall be installed.

  5. Lengths of sample tubes shall be as dictated by ductwork shown on the Mechanical Drawings.

  6. Furnish alarm indicators with a remote test switch for all duct detectors located above suspended ceilings.

(FOR USE IN ATRIUMS AND LARGE OPEN AREAS WITH HIGH CEILINGS:)

  1. Photoelectric Projected Beam Detectors shall have a separate transmitter and receiver and shall be capable of long range coverage of up to 350 ft. and shall have six (6) sensitivity settings.  Automatic compensation for lens contamination shall be incorporated.  The detectors shall include a normal status indicator (Green Pulsing LED), and alarm indicator (Red LED), and a trouble indicator (Amber LED).

  2. Addressable pull stations shall contain electronics that communicate the station's status (alarm, normal) to the Control Panel over two wires which also provide power to the pull station.  The address shall be set on the station.  They shall be manufactured from high impact red Lexan. The station shall mechanically latch upon operation and remain so until manually reset by opening with a key common to all system locks.  Pull stations shall be double action, semi-flush mounted (unless otherwise indicated on the Drawings).

(SELECT a, b OR c BELOW)

  1. Protective Shield: Provide a tamperproof, clear polycarbonate shield and red frame that easily fits over manual pull stations. When shield is lifted to gain access to the station, a battery powered piercing warning horn shall be activated.  The horn shall be silenced by lowering and realigning the shield. The horn shall provide 85 db at 10 feet and shall be powered by a 9 VDC battery.  Provide in gymnasiums and other areas as identified by the University.

  2. Provide wire guards for gym area devices.

  3. Provide humidity gaskets for devices in locker area, pool area, and pool pump room.

  1. Addressable interface modules shall be used for monitoring or control of devices and systems as described on the Drawings.

  1. An addressable interface module shall be provided for interfacing normally open direct contact devices to an addressable initiating circuit.

  2. The modules shall be capable of mounting in a standard electrical outlet box.  The modules shall include cover plates to allow surface or flush mounting.

  3. Addressable interface modules shall be supervised and uniquely identified by the Control Panel.  Device identification shall be transmitted to the Control Panel for processing according to the program instructions.  Should a module become non-operational, tampered with, or removed, a discrete trouble signal, unique to the device, shall be transmitted to, and annunciated at, the Control Panel.

  1. The modules shall be capable of being programmed for individual locations on the addressable device initiating circuit.  The modules shall be compatible with addressable manual stations and addressable detectors on the same addressable initiating circuit.

  1. Audible/Visible Notification

  1. Audible/Visible devices shall be horizontal wall mount.    The devices shall be UL listed to Standard 1971 and have a circumpolar light output allowing mounting in either vertical or horizontal positions.  The devices shall be rated as follows:

  1. In corridors or rooms of 400 square feet or less –75 cd as required by the ADA.

  2. In rooms or areas greater than 400 square feet where only one device is used cd 110

  3. In sleeping rooms – 110 cd.

  1. The light unit shall be of ABS polycarbonate and the lens of high grade, optical quality LEXAN.  For optimized light distribution, the xenon flash tube shall be installed perpendicular to the device’s back plane.  A special compound reflector shall be utilized to maximize and best distribute the light pattern in key axis directions.

  2. The effect of the illuminated visible devices shall be observable in a circumpolar pattern.  The visible devices shall be labeled with the word “FIRE” in a contrasting color and the height of each character shall be a minimum of 5/8".  In its quiescent state, the word “FIRE” shall be visible.

  3. All visible devices shall flash in a synchronized pattern.

  4. The audible portion of the devices shall be a speaker or electronic horn.

  5. Devices shall be semi-flush mounted (unless otherwise indicated on the Drawings).

  1. Provide wire guards for gym area devices.

  2. Provide humidity gaskets for devices in locker area, pool area, and pool pump room.

  1. Visible Only Notification

  1. Visible only devices shall be vertical wall mount.  The devices shall be UL listed to Standard 1971 and have a circumpolar light output allowing mounting in either vertical or horizontal positions or on the ceiling.  The devices shall be rated as follows:

  1. In corridors or rooms of 400 square feet or less –75 cd as required by the ADA.

  2. In rooms or areas greater than 400 square feet where only one device is used – 110 cd.

  3. In sleeping rooms – 110 cd.

  1. The light unit shall be of ABS polycarbonate and the lens of high grade, optical quality LEXAN. For optimized light distribution, the xenon flash tube shall be installed perpendicular to the device’s back plane. A special compound reflector shall be utilized to maximize and best distribute the light pattern in key axis directions.

  2. The effect of the illuminated visible devices shall be observable in a circumpolar pattern. The visible devices shall be labeled with the word “FIRE” in a contrasting color and the height of each character shall be a minimum of 5/8". In its quiescent state, the word “FIRE” shall be visible.

  3. All visible devices shall flash in a synchronized pattern.

  4. Devices shall be semi-flush mounted (unless otherwise indicated on the Drawings).

  1. Provide wire guards for gym area devices.

  2. Provide humidity gaskets for devices in locker area, pool area, and pool pump room.

  1. All devices shall be supervised for trouble conditions. The Control Panel shall be capable of displaying the type of trouble condition (open, short, device missing/failed). Should a device fail, it shall not hinder the operation of other system devices.

(USE ONLY IN HIGH-RISE BUILDING UNLESS

OTHERWISE REQUESTED BY OWNER.)

2.5       ONE-WAY VOICE COMMUNICATION

  1. Provide one-way voice communication with tone generating capabilities.

  2. A Central Audio Control Module shall be provided for the alarm message/tone generation, main and remote microphone connections, and mixer/pre-amplifier circuits.  Continuous supervision shall be provided.  Audio outputs shall have individual gain control.

  3. A hand-held, push-to-talk microphone shall be provided recessed within a protective panel-mounted enclosure.  The microphone shall be a dynamic communication type microphone with a frequency range of 200 Hz to 4000 Hz and shall be equipped with a self-winding five foot coiled cable.  An LED indicator shall be provided to indicate the microphone push-to-talk button has been pressed and speaker circuits are ready for transmission.  The microphone shall be supervised in the event of disconnection.

  4. An Audio Control Switch Module shall be provided for the audio functions.  These switches and associated LED indicators shall be supervised in the event of disarrangement or failure.

  5. Audio power amplifiers shall be provided with self-contained filtered 24VDC power supplies, transformers and amplifier monitor circuits.  The amplifiers shall provide a 25V RMS output with a frequency response of 120 Hz to 12,000Hz.  Provide a sufficient quantity of amplifiers to operate all system speakers simultaneously plus twenty (20) percent spare capacity.

  6. In addition, provide at least one back-up amplifier capable of automatically replacing any failed amplifier.

  7. Provide speaker circuits which are capable of supplying audio signals at 25V RMS derived from the system amplifiers.  Supervision for open, short and ground fault conditions shall be provided.  Individual and distinct trouble indications shall be provided for each fault.  Provide one circuit for each zone or area of distinct communication.

  8. Tones - Digitized tones for alarm or auxiliary requirements shall be provided.  The Owner shall have the ability to select one of the tones from the following list.

  1. A Slow Whoop shall be a slowly ascending tone from 200 Hz to 830 Hz in 2.5 seconds.

  2. A Wail shall ascend and descend from 600 Hz to 940 Hz.

  3. A Beep shall be a 470 Hz tone.  The time duration shall be 0.7 seconds on and 0.7 seconds off.

  4. A Horn shall be a continuous 470 Hz tone.

  5. A Stutter shall be a 470 Hz tone which is on for 100 milliseconds and off for 100 milliseconds.

  6. A Hi/Low shall be a free running tone with a high frequency of 544 Hz and a low frequency of 440 Hz.  The on time (Hi) shall be 100 milliseconds while the off time (low) shall be 400 milliseconds.

  1. Pre-recorded digitized voice message capability shall be provided for automatic transmission to building occupants during alarm conditions. Three (3) custom messages shall be provided, one for alarm, one for testing, one for weather advisory, etc. The message player shall not rely on a tape or other mechanical means of transmitting the evacuation message. Systems that do use tape players must provide a backup player designed to automatically operate should the primary device jam or otherwise fail to operate. A standard evacuation message shall be provided under this Contract. However, the message player must be capable of transmitting customized messages of up to 4 minutes long. A self-contained speaker shall provide testing of the messages without disturbing the occupants of the facility.

  2. Should a two-way Fire Fighters Voice Communication System be provided, a method for remote fire fighters communication patch-in to the one-way voice communication speakers shall be provided. Manual operation shall be provided at the Firefighters Voice Communication System Central Control Station.

  3. Automatic Voice Evacuation Sequence:

  1. The audio alarm signal shall consist of an alarm tone for a maximum of 10 seconds followed by automatic pre-selected voice evacuation messages.  At the end of each voice evacuation message, the alarm tone shall resume.  The alarm tones shall sound until the system has been reset.

  1. Manual Voice Paging Sequence:

  1. The system shall be configured to allow selective voice paging.  Upon activation of any speaker manual control switch, two (2) seconds of tone shall sound over the speakers indicating an impending voice message will occur.

(FOR USE IN HIGH-RISE BUILDINGS.)

2.6        TWO-WAY FIREFIGHTERS COMMUNICATION

  1. Provide a two-way Firefighters Voice Communication System between the Central Control Station and Remote Emergency Telephone Jacks.  All wires between the Central Control Station and remote emergency telephone jacks shall be continuously supervised.  Any fault which occurs shall be reported visually and audibly at the Central Control Station.

(SELECT ONE)

  1. The Central Control Station shall be an integral part of the Main Fire Alarm Control Panel.

  2. The Central Control Station shall be a Remote Firefighters Command Station as located on the Drawings.

  1. A Master Telephone Control Module shall be provided at the Central Control Station for processing of all two-way communication functions.  This module shall include an audible alert for call and trouble signaling, a trouble silence switch with ringback, a trouble indication and a supervising monitor circuit.

  2. A Master Telephone Handset with a five (5) foot cord shall be provided and recessed within a protective panel mounted enclosure at the Central Control Station.  This enclosure shall also provide locations for the telephone control and flasher/busy tone oscillator.

  3. Provide one line (talk) circuit for each (floor corridor), (elevator cab) and (stairwell).  Line (talk) circuit modules shall be provided to electrically supervise for shorts, opens and grounds of circuit wiring. 

Each line module shall contain a “Call” and “Trouble” indication and a two position switch to enable two-way voice communication.

  1. The Firefighters Communication System shall be capable of handling single or simultaneous conversations with all telephones connected into the system.

  2. The system shall indicate to the person attempting to use a remote telephone that the signal is being received at the Central Control Station and that the lines are intact.  As many as six (6) telephones shall be able to be connected into active conversation at the Central Control Station.

  3. Each emergency telephone jack shall be mounted on a stainless steel single gang plate with the words “Fire Emergency Telephone” screened on each.

  1. Provide Emergency Telephone Jacks for installation in each elevator cab by the Elevator Contractor.   Required wiring from elevator controls to each elevator cab shall be furnished and installed by the Elevator Contractor.
  1. Provide a minimum of five (5) pluggable emergency telephones within a storage cabinet at the Central Control Station.

  2. Provide actual remote telephones in addition to the jacks in break rod cabinets as shown on the Drawings.  These emergency telephones shall be constructed of red cycolac type t, a thermal ABS material and shall be equipped with an armored cable.

PAT 3 - EXECUTION

3.1        SUBMITTALS

  1. Submittals shall include installation and wiring diagrams and instructions for installation, operation and maintenance, to be suitable for inclusion in the Maintenance Manuals.

  2. Submittals shall include reproducible vellum floor plans (1/16" scale, minimum) showing device locations and required conduit and wiring connections.

  3. Submittals shall include descriptive literature for all system components, size and type of recommended conduit and wiring, bill of materials, and sequence of system operation.

3.2       PERFORMANCE, WARRANTY, SERVICE AGREEMENT AND TESTING

  1. The Electrical Contractor shall furnish and install, in accordance with manufacturer's instructions, all system components and devices, wiring, conduit, outlet boxes, etc., as required for a complete system as described herein and as shown on the Drawings.  All wiring shall be in conduit and shall meet the requirements of all National, State, and Local Electrical Codes.  Wire sizes shall be as specified by the equipment manufacturer.  Final connections shall be made under the direct supervision of the manufacturer's factory trained technical representative.

  1. Above accessible ceilings, plenum rated wiring may be utilized.  The wiring shall be supported by wall mounted bridal rings at approximately 36” on center. All wall penetrations shall utilize conduit sleeves with bushings on both ends.

  1. The Riser Diagram shows the intent of these Specifications and shall be used as a guide only.  The conduit sizing and number of wires are to be verified with the manufacturer prior to submitting a bid and prior to installation in the building.

  2. The Electrical Contractor shall guarantee all equipment and wiring to be free of mechanical and electrical defects for a period of one year from the date of acceptance by the Owner.  The manufacturer shall furnish, gratis to the owner, a one year contract effective from the date of acceptance for maintenance and inspection service of the manufacturer's equipment. The Owner shall deal with one organization for total system responsibility.  The manufacturer shall make available to the Owner an extended Maintenance Contract after the initial year’s agreement has expired.

  3. The manufacturer shall provide to the owner during the period of the guarantee, emergency preventative maintenance service on a 24 hour standby basis.

  4. The manufacturer shall maintain an adequate supply of spare parts and a full time service facility with factory trained service technicians to provide supervision of the installation.

  5. Upon completion of the installation and after satisfactory testing of the system by the Contractor in the presence of the equipment supplier, the Contractor shall test the system in the presence of the Architect, Fire Marshall, and/or Owner's Representative, and other authorities having jurisdiction.  Provide a written start-up report.

  6. A representative of the system manufacturer shall provide all system programming and testing, and shall instruct the Owner’s personnel in the operation and maintenance of the system.  The training session shall be video taped by the Contractor for future Owner use.

[VERIFY AUTOCAD RELEASE WITH CWRU]

  1. Upon completion of the project, the Owner shall be furnished by the Contractor AutoCAD Release 14.0 disks and reproducible vellum “as-built” drawings of the fire alarm system showing wiring fill, wire tag numbers, junction boxes and connection of devices.

 END OF SECTION

Fire Alarm System Notes               Fire Alarm Symbol Legend

Addressable Fire Alarm System Typical Riser