Nelsons Law
Agenda Intro Objective What is Carbon Monoxide Carbon Monoxide Law History Nelsons Law NFPA 720
Travis Dawley C&S Engineers C&S Engineers Inc. 2015 - Current NYS Code Enforcement Officer NICET II Fire Alarm Vice President of NYS Fire Marshals & Inspectors Association.
Objectives Where is carbon monoxide found? What is a detection zone? Nelson s vs Amanda s Law, How do they work together?
Carbon Monoxide Carbon monoxide (CO) is a deadly, colorless, odorless, poisonous gas. It is produced by the incomplete burning of various fuels, including coal, wood, charcoal, oil, kerosene, propane, and natural gas. Products and equipment powered by internal combustion engines such as portable generators, cars, lawn mowers, and power washers also produce CO.
Symptoms of CO Poisoning The most common symptoms of CO poisoning are headache, dizziness, weakness, upset stomach, vomiting, chest pain, and confusion. CO symptoms are often described as flu-like. If you breathe in a lot of CO it can make you pass out or kill you. People who are sleeping or drunk can die from CO poisoning before they have symptoms. Source: http://www.cdc.gov/co/faqs.htm
Health Effects The health effects of CO depend on the CO concentration and length of exposure, as well as each individual's health condition. CO concentration is measured in parts per million (ppm). Most people will not experience any symptoms from prolonged exposure to CO levels of approximately 1 to 70 ppm but some heart patients might experience an increase in chest pain. As CO levels increase and remain above 70 ppm, symptoms become more noticeable and can include headache, fatigue and nausea. At sustained CO concentrations above 150 to 200 ppm, disorientation, unconsciousness, and death are possible.
Cases of Carbon Monoxide Poisoning Doctor warns of carbon monoxide poisoning from generators after 6 fall severely ill. Charleston County Florida. News Article 6 people suffered severe carbon monoxide poisoning. Source: Gas Generator running in garage with garage doors closed. Generator was providing temporary power following Hurricane Matthew. Currently two deaths from Hurricane Matthew are the result of Carbon Monoxide Poisoning.
Nelsons Law Legal Sea Foods 4-22-2014 Leak in Water Heater Flue Pipe 1 Died, 26 others treated and released. Deceased was Steven Nelson 55.
Amanda s Law January 2009 Amanda Hansen Defective Boiler Spent the night at friends house.
Carbon Monoxide
Definitions Carbon Monoxide Alarm: A single or multiple-station device that has (1) a sensor capable of detecting the presence of carbon monoxide and (2) an alarm that sounds when carbon monoxide is detected.
Definitions Carbon Monoxide Detector: A device that (1) has a sensor capable of detecting the presence of carbon monoxide and (2) is connected to an alarm control unit that sounds an alarm when carbon monoxide is detected.
Exhaust flue not properly installed. Open joint at connection. Carbon Monoxide Sources
Carbon Monoxide Sources
Mixed Use Mixed use building. Where a building is both residential and commercial. Required to meet the requirements of both Amanda s law and Nelsons law.
1 Provided on each story containing a sleeping area, and within 15 feet of sleeping area. 2 On Each Story containing a source 3 Provided on the lowest story containing a sleeping area, within 15' of sleeping area. 4 Where the dwelling unit or sleeping unit is located on the same floor as a carbon monoxide source, provide within 15' of each sleeping area.
Triggering Condition 1 Presence of a carbon monoxide source within a detection zone.
Carbon Monoxide Source Any appliance, equipment, device, or system that may emit carbon monoxide. Furnace Stoves Boiler Space heaters Kerosene heater Wood stove Fire place Ovens Dryers Water heats Refrigerators Garages
Carbon Monoxide Sources
Triggering Condition 2 Presence in a detection zone of a duct opening or other outlet from a carbon monoxide producing hvac system. Exceptions Carbon monoxide detection is provided in the first room or area served by each main duct leaving the source and signal is automatically transmitted.
Triggering Condition 2
Triggering Condition 3 Presence of a adjacent garage or other vehicle related occupancy in location that is adjacent to a detection zone. Not required in open parking garage. Not required were 50% of the wall is open to outside. Example Car Port
Triggering Condition 3 Carbon Monoxide Source
Triggering Condition 3 50% if the walls is open to the outside. Not a CO source.
Placement Less than 10,000 Sq Ft, center device in detection zone. Area 10,000 Sq ft or greater, center device in detection zone and provide additional detection every 100. Exception: Were area is greater than 10,000 sq ft, contains one or more sources, not served by CO producing HVAC source, and not adjacent to a garage, you may install detection between the source and the remaining space.
Detection Zone(s) 915.3 b 8 The term detection zone means a story of a commercial building. However: If story is arranged so that two or more separate carbon monoxide producing HVAC systems are used to serve separate portions of a story, each section shall be its own zone. Each classroom shall be its own zone. Garages are not a detection zone. Adjacent spaces are.
4 Gas Fired air handlers = 4 detection zones. Two or more HVAC sources
Single CO Source Main boiler Hydronic Forced Air system. Carbon Monoxide isolated to a single location.
Classrooms Located in a school. 6 or more persons. Classes are taught. Applies to Public and Private schools, but not religious schools. Signal sent to normally attended location on site. Each classroom shall be deemed a separate detection zone.
Power Sources Devices shall be connected to a commercial power source. Where a commercial power source does not exist. A device with a 10 year battery may be used. Where installed before June 27, 2015, a plug in device without a 10 year battery may remain until such time its due for replacement.
Interconnection Where a device is installed in a regularly unoccupied space. A additional device shall be provided in an adjacent regularly occupied space. A sign shall be provided indicating the location of the normally unoccupied space.
Carbon Monoxide Systems Shall be installed in accordance with NFPA 720. Shall not activate a fire alarm signal. Where notification is transmitted to an approved location. There shall be at least one notification appliance.
NFPA 720 Standard on installation of Carbon Monoxide systems. Monitoring Maintenance
Carbon Monoxide Detector 24V DC Conventional CO detector with integral sounder. May be connected to a fire alarm system as a zone or monitored by an addressable monitor module.
Carbon Monoxide Detector
Carbon Monoxide Detector 120V Carbon monoxide/smoke alarm. For use in locations that do not have a fire alarm system and in single and multi family dwellings.
Carbon Monoxide Detector Addressable Multi-Criteria detector. May be CO, Smoke, Heat. Addressable smoke detector with CO base.
Questions
Travis Dawley Project Engineer tdawley@cscos.com 315-703-4119