Fire Alarm System Design & Maintenance - … · Typical Layout of Residential Self-Contained Smoke...
Transcript of Fire Alarm System Design & Maintenance - … · Typical Layout of Residential Self-Contained Smoke...
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Fire Alarm System Design & Maintenance
Lee Daly
Total Fire Alarm & Security Inc.
11/08/16
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Agenda
• History of Fire Alarm Systems / Original & Current State Fire Codes pertaining to Multi-Housing in MN
• Typical Fire Alarm System Design – (3) Basic Types of Facilities for Multi-Housing
• Residential Space vs. Common Area
• Typical Sprinkler System Design
• Maintenance & Annual Inspections
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History of Fire Alarm System Requirements for Multi-Housing
Facilities in Minnesota
Original State Fire Codes: • Manual Activation Only (1960’s – 1970’s) • Automatic Heat Detection (1970’s – 1980’s) • Automatic Smoke Detection (Mid 1980’s) • ADA Requirements – Strobes (1990’s) International Fire Code (IFC): • Sprinkler System Exceptions (Mid 2000’s)
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Early Fire Alarm Systems
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No Alarm System - Yell Fire!
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Manual Activation Only (60’s – 70’s)
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Automatic Heat Detection (70’s)
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Automatic Smoke Detection (80’s)
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Transition from Bells to Horns & Speakers for High-Rises (80’s)
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ADA Legislation – Strobes (90’s)
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75 Db Requirement - Mini-Horns in Living Rooms/Bedrooms (90’s)
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Addressable Technology (90’s)
• Manual Pull Stations, Smoke/Heat Detectors, & Sprinkler Devices are all identified on a per point basis
• Verses the Traditional Zoned System (typically by Floor or Area of Building)
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MN Adopts International Fire Code – IFC (early 2000’s)
• Sprinkler System Exception – Allows Manual Pull Stations & Smoke Detectors to be Eliminated in Buildings with 100% Sprinkler System (New Construction)
• (1) Manual Pull Station only at Main Panel
• Smoke Detectors only at Elevator Lobbies (elevator capture) & Door Holder Control
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Present Fire Alarm System Design Requirements - Basic R-2 Occupancy
• Fire Alarm Systems required for any building 16 units or larger or 3 occupied levels or more
• 24/7 Fire Monitoring is required for all buildings with Sprinkler Systems regardless of size - Townhomes, etc.
• Independent Residential Smoke Detectors are required in Residents Living Space (not to be connected to central Fire Alarm System)
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Non-Sprinklered R-2 Occupancy
• Manual Pull Stations at all exits
• Heat Detectors in boiler rooms, laundry rooms, storage rooms, & parking garages
• Smoke Detectors 30’ on center in all common corridors, at elevator lobbies, & door holders
• Horns & Strobes required in all common areas (corridors, restrooms, laundry rooms, etc.)
• Mini-Horns required in all resident bedrooms
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Fully Sprinklered R-2 Occupancy
• Manual Pull Stations at exits (1) Only
• Heat Detectors in boiler rooms, laundry rooms, storage rooms, & parking garages (Sprinkler Heads monitored by Fire Panel)
• Smoke Detectors 30’ on center in all common corridors, at elevator lobbies, & door holders
• Horns & Strobes required in all common areas
• (corridors, restrooms, laundry rooms, etc)
• Mini-Horns required in all resident bedrooms
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Typical Fire Alarm System & Design by Building Type
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Building Type 1 - Townhomes R-2
Separate Resident Entrances & No Common Corridors or Areas
Sprinkler System with 24/7 Fire Monitoring Panel Required Only
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Typical Townhome Outside Entrance to Sprinkler Room & Monitoring Panel
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Building Type 2 – Low-Rise R-2
Common Entrance & Corridors to Resident Units (Typically 3 – 5 Floors)
Central Fire Alarm System Required per State IFC
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Low-Rise R-2 – Non Sprinklered
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Low-Rise R2 – Sprinklered Low Frequency Horns in Bedrooms
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Building Type 3 – High-Rise R2
More Than 75 Feet Above Street Level (or Fire Dept. Access)
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High-Rise R2 – Sprinklered Speakers in Bedrooms
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Self-Contained Smoke Detectors Required in Residential Space
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Ionization & Photoelectric Types
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Typical Layout of Residential Self-Contained Smoke Detectors
New Construction
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Residential Smoke Requirements
• New Construction – 120VAC with battery backup Interconnected & located in Hallways outside Bedrooms & in each Bedroom
• Existing Buildings (after 8/1/89) – 120VAC with battery backup & located in Hallways outside Bedrooms (No Interconnection)
• Existing Buildings (before 8/1/89) – Battery Operated OK & located in Hallways outside Bedrooms (No Interconnection)
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Replacement Requirements for Residential Smoke Detectors
• If they Fail to Respond when Tested
• When they exceed 10 Years from the date of manufacture
• Must be replaced with same type of device:
120VAC with Battery
Battery Only
Interconnected
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CO Detectors Required for Gas Appliances In Residential Space
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CO Detector Exception
• In Buildings with centrally located gas appliances (boiler room, laundry rooms, etc.)
• CO Detectors can be installed at the location of the gas appliances only and not in each residential unit
• CO Detectors must be connected to the building fire alarm system and be monitored 24/7 by and outside monitoring service
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Mini-Horns or Speakers required in Bedrooms of Residential Space
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Typical Sprinkler Systems in Multi-Housing Buildings
Required to be connected to the Central Fire Alarm System
with 24/7 Monitoring
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Wet Sprinkler System (Common Areas & Residential Space)
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Dry Sprinkler System (Unheated Garages & Attics)
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Typical Sprinkler Riser Room (Fire Pump for High-Rises)
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Maintenance & Annual Inspections
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State IFC Requires Annual Inspections of Fire Alarm & Sprinkler Systems
• 100% Inspection of all Systems Devices: Smoke Detectors, Heat Detectors, Manual Pull Stations, Door Holders, & other Associated Equipment. Sprinkler Wet & Dry Systems.
• Fire Pumps (April – October in MN)
• Horns & Strobes must be activated
• Main Panel & Remote Panels Battery Load Test
• Monitoring Signals Verified with Central Station
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Maintenance Items that should be included during Annual Inspection
• Smoke Detectors should be cleaned & tested for sensitivity levels (if addressable system)
• Batteries should be replaced if they fail the required load test (5-Year Replacement Plan)
• Main Panel should be tested for all alarm, trouble, supervisory, reset, & silence functions
• Main Panel should have manufacturers firmware upgrades installed
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Smoke Detectors are the most active device = Problems if not Maintained
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Protect Smoke Detectors Temporarily Construction/Garage Cleaning
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City Fire Inspector Variances on Maintenance & Inspections
• Generally Cities in MN enforce the State IFC and NFPA Testing Standards
• Some may require more than State IFC
• UL Certificates have been initiated by some Fire Marshals in the Metro Area
• UL requires more Documentation/ 1 Hour Alarm Response/ 4 Hour Trouble Response
• Higher Monitoring/Service Contract Costs
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UL Certificate/Monitoring Cities
Brooklyn Center Coon Rapids
Brooklyn Park Eden Prairie
Burnsville Golden Valley
Chanhassen Maple Grove
Chaska Plymouth
Shakopee