The Edwards 6264C-001 is an Ion smoke detector that is mainly used for air duct purposes. We accept improvement in any form including via grammar Nazi)))! The Basic Rundown for Field Installations | Where are Smoke Duct Detectors Required? We do get a small commission from any sales for our affiliates for which we link. This includes where multiple air handling systems utilize common ducts with a combined design capacity greater than 2,000 cfm. Remember, others will be testing the installation, including the code inspector, fire inspectors, and commissioning people. Plug-in, tool-free sampling tubes speed installation. It spreads smoke that can harm the occupants of the facility where it is located. We recommend that the KRM be fitted and installed at the same distance from heating, A Signature Series photoelectric sensor is incorporated into the design of each SIGA-SD duct smoke detector. I actually lost sleep. Do you know if it is a code requirement to support sampling tubes greater than 3′ at the opposite end of the duct detector? Always follow duct detector manufactures instructions and code for wiring. SuperDuct duct smoke detectors will not operate without electrical power. 879 0 obj <> endobj 898 0 obj <>/Filter/FlateDecode/ID[<6B6310283E2F4DBB82545E1602ED74CD><36344207033A46E99AE5F06C36CFEE98>]/Index[879 36]/Info 878 0 R/Length 100/Prev 919751/Root 880 0 R/Size 915/Type/XRef/W[1 3 1]>>stream A duct detector is a special type of sensor that checks air ducts for smoke. a detailed answer to satisfy requirements, exclusions and exceptions to the requirement, references for further information about HVAC equipment and fire safety, Finally, additional related information about fire and smoke dampers regarding HVAC, In multi-story buildings at each story with a commonly shared return and having a capacity greater than. Additionally, always follow the code requirements for each project. Anyone with further comments on this please leave a comment below. The Joint Commission/NFPA Life Safety Book for Health Care Organizations, U.L. 24V DC/CC; Compatible base & housing: 6251C … For HVAC systems with airflows exceeding 2,000 cfm, duct smoke detectors are required. The question: Where do you install duct detectors in the ductwork? For additional protection you can also use a UV Light that will kill harmful viruses and bacteria inside the airflow of the air handler. In labs researchers used a spectrum of ultraviolet light called UVC to kill viruses. In an effort of full disclosure, we do have affiliate links on our webpages. We also believe the products we link to help our site visitors find products they need to enhance or repair their HVAC equipment. by High Performance HVAC | Duct Work | 4 comments. Furthermore, intentions for using duct smoke detectors should not be a substitute for area smoke detectors. NEW HOCHIKI DH-98 Duct Smoke Detector. Therefore, it is wise to check local code requirements in addition to existing national codes. This sensor inherits the power and benefits of this exceptional line of intelligent devices. Overview. The code details why smoke detectors are required along with the intentions of installing duct smoke detectors inside the ductwork to comply with code requirements. A smoke duct detector on the supply side will do two things provided it is wired and controlled properly. We'll assume you're ok with this, but you can opt-out if you wish. I’ve had this question asked of me several times. Duct Smoke Detector Location Requirements: detectors should not be mounted in areas of extreme high or low temperatures, in areas where high humidity exist, or in areas where duct air may contain gases or excess dust. Duct detectors are not a substitute for early warning detec-tion or a replacement for a build-ing’s regular fire detection system. Your email address will not be published. When installing duct-type smoke detectors, they can be installed as described below: (1) Rigid mounting within the duct NFPA 90a Duct Smoke Detector Requirements. The Hochiki DH-99 addressable smoke detector provides early smoke detections of combustion products present in the air, moving through HVAC ducts in commercial, industrial and residential applications. The DH-99 is designed to prevent the recirculation of smoke in areas by air handling systems, fans and blowers. There seems to be a conflict in the codes from the NFPA 90A and the International Mechanical Code. The fire broke out in the kitchen of The Deli restaurant at MGM Grand Hotel & Casino. The wiring diagram graphics here are for illustration purposes only. Smoke introduced into this air duct system will be distributed throughout the entire building. This is a video simplifying the duct smoke detectors, you will commonly see these installed in the duct work on HVAC systems. Duct Smoke Detection Equipment A duct smoke detector is a device or group of devices used to detect the presence of smoke in the airstream of ductwork sections of the HVAC air handling systems typically used in commercial buildings. The DNRA is an Intelligent non-relay photoelectric duct smoke detector for use with ONYX Series panels. SuperDuct duct smoke detectors will not sense smoke unless the ventilation system is operating and the sensor’s cover is properly installed. Lastly, the goal is to detect smoke, shut off the fans, and send out an alarm. Preface for the NFPA 90A requirements for duct detectors in air conditioning and heating equipment. Price $127.80. But opting out of some of these cookies may have an effect on your browsing experience. These links will lead to you purchase a product from another company. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. Brand New. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Duct Detectors Smoke Detection - NFPA 90A Code Requirements - This article references the current NFPA 90A “Standard for the Installation of Air-Conditioning and Ventilating Systems.” It provides basic instruction on the installation of smoke detectors inside the ductwork. These cookies do not store any personal information. or Best Offer +C $21.38 shipping estimate. Xtralis is the leading global provider of powerful solutions for the very early & reliable detection of smoke, fire, and gas threats. Fans, blowers and complete systems may be shut down in the event of smoke detection. 244 duct smoke detectors products are offered for sale by suppliers on Alibaba.com, of which centrifugal fans accounts for 1%, diagnostic tools accounts for 1%. Regin has both motion detectors and smoke detectors. First, it will send an alarm to alert facility operator and maintenance staff. Required fields are marked *. In this case the NFPA 90A requirements for HVAC systems and ductwork. Of course, the answer is simple. Thanx John, we work by the same principle that the humble Ninja’s live by; constant improvement. Get your copy here: NFPA 90a: Standard for the Installation of Air-Conditioning and Ventilating Systems. h�bbd```b``�" UA$�"�H5�]&c�"-`v+�}L��ER@��0{&�����$�� ��� 6�Y ��=#3/H��������� �E endstream endobj startxref 0 %%EOF 914 0 obj <>stream In air supply systems with a capacity greater than, Ventilation fan systems used to remove air from the inside of the building to the outside of the building. Special requirements for installation and successful operation makes it necessary for a trouble-free installation. Looking for FIREX Duct Smoke Detector (3ZP71)? It provides a volt-free changeover relay rated at 30V, 1A. Grainger's got your back. (qA"q�\�@�a����{c����v��iO�S�L]�l(=����i�9��������G��u���@''�˳��$tz���������r��x��yw���f��%>W)�5��=>���J�AሄZ�J�Vv[����1�9&$������͵F. First of all, and above all else, the detector must be listed for being used in air duct system (NFPA 72 17.7.5.5.1). Even though the fire was on the main floor, the smoke spread through the entire 26 story building, including the elevator shafts, stair wells, and air vents in the building. NFPA 72 gives us the guidelines as to how to provide/install smoke detectors in ducts. Shop our selection of high quality Duct Smoke Detectors from top Fire Safety manufacturers at Wholesale Prices & w/ Free Same Day Shipping - Buy our Duct Smoke Detectors bundled together with other Fire Safety & get Extra 15% off using our VIP Membership. The air duct mounting probe unit enables Eaton's range of addressable, conventional and two-wire fire alarm system smoke detectors to be installed in heat, air conditioning and ventilation (HVAC) ducts. Air Duct Velocity: 100 – 4,000 ft/min (0.5 – 20.32 m/s) Accessories Notifier provides system flexibility with a variety of accessories, including two remote test stations and different means of visible and audible system annunciation. Duct smoke detectors, when installed in HVAC systems, automatically stop the system fans upon the detection of smoke. Whenever smoke is detected the fan(s) should be wired to shut down. Depending on how the controls are set up will depend on which contacts you use. Additionally, some municipalities have more stringent codes in place. Return air smoke detectors are not required when there is a protection of the space served by a system of area smoke detectors. h�b```b`0�g`2��@(� C $331.28. H��SMOUA�ϯ�x}��G; a! Following up with a Request for Information can hold the job up sometimes. Brand New. Model D355PL Air Duct Smoke Detector utilizes photoelectric technology for the detection of smoke. This commission helps us pay for the overhead of running this website. A duct smoke detector should shut off a typical blower and fresh air and turn on the exhaust; Duct detectors aren’t a replacement for room sensors; If the duct system is designed to carry more than 2000 CFM (5 tons nominal) of air you need one in the return if IMC is … Engineering drawings do not always represent these details. NFPA 90A is specific to Air Conditioning and Heating Systems installation. The purpose of the NFPA 90A is to prevent the spread of smoke and fire through ductwork and ventilation systems for air conditioning and heating systems with high capacities. Resource: The Fundamentals of HVAC Direct Digital Control. The DNRW is a Watertight intelligent non-relay for use with ONYX Series panels. Signature Series sensors gather analog information from their smoke sensing elements and convert it into digital signals. Standard 269A, Standard for Smoke Detectors for Duct Applications. We also use third-party cookies that help us analyze and understand how you use this website. Of course, everything should be tested multiple times by different authorities to ensure proper sequence of operation. Inside the probe, a detector and base are mounted within a sampling chamber. Necessary cookies are absolutely essential for the website to function properly. If you do not understand the code or the requirements ask the engineer or another qualified person on the project. Why are Smoke Duct Detectors Required on the Supply Side as noted above? Additionally, a good technician will educate themselves on the proper installation of an essential component. Therefore, duct smoke detectors are typically considered mechanical equipment devices instead of life safety devices. From United States. It is required in the NFPA 90A but not in the Mechanical Code. While I am a licensed Master HVAC contractor I am not a code official but here is my answer. The Conventional Duct Smoke Detector provides early detection of smoke in the air moving through heating and ventilation (HVAC) ducts in commercial and industrial premises. Ciao This product requires professional installation so it will turn on and off with the blower fan in your air handler but it will offer the protection you need for you and your family from any viruses. InnovairFlex Duct Smoke Detector Speci˜cations The air duct smoke detector shall be a System Sensor InnovairFlex™ D2 Photoelectric Duct Smoke Detector. I would check with the manufacturer of the device to answer that question. These fans are excluded from the above requirements and, ASHRAE Handbook and Product Directory, “Fire and Smoke Control”, The Fundamentals of HVAC Direct Digital Control. Smoke detectors designed for use in air duct systems are used to sense the presence of smoke in the duct. are normally attached, so there is a lami-nar airflow along the measuring tube. Always read the manufacturer’s instructions, guidelines, and recommendations when installing and testing smoke detectors in the ductwork. Secondly, it will kill the fan so it does not continue to spread smoke before catastrophic failure of the fan occurs. Duct Smoke Detection - NFPA 90A Code Requirements – There are exceptions to the two basic requirements: Additional references to smoke detector safety in air conditioning and heating systems installation can be found using the following resources: In addition to the installation requirements for smoke dampers and fire dampers, the code requirement for any safety devices in ductwork ventilation systems is necessary for basic life and safety. Not sure. Reply. And especially for the installation of air conditioning and heating equipment and components required by code. Duct detectors are not a sub-stitute for an open area smoke detector. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. The question is: Where do you install these devices in the ductwork? Our technologies prevent disasters by giving users time to respond before life, critical infrastructure or business continuity is compromised. Duct smoke detectors provide early detection of smoke and products of combustion present in air moving through HVAC ducts. Always ensure you check the latest codes for current information. The smoke detector range includes ionisation and optical detectors with service alarm.The detectors are intended for duct or ceiling mounting. The NFPA 90A is specific in defining the position of the duct smoke detectors in the ductwork. It is mandatory to procure user consent prior to running these cookies on your website. This website uses cookies to improve your experience while you navigate through the website. This category only includes cookies that ensures basic functionalities and security features of the website. In the meantime, smoke is being spread throughout the supply side and into the facility where people occupy the rooms. New (Other) C $184.75. SuperDuct duct smoke detectors will not operate as designed outside of the listed electrical and environmental specifications. Both the IMC and NFPA 90A state that, if multiple air handlers serve the same area and the combined air volume is greater than 2,000 cfm, detectors are required. Duct detectors have specific limita-tions. ducts (1-3/8" diameter), using template as a guide. Out of some of these cookies will be testing the installation, including the code inspector,,. We work by the air duct smoke detector service, free technical support &.... Hvac | duct work on HVAC systems, fans and blowers the goal is to detect smoke, off. Image to the right for purchase options of the UV light that kill. 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Is my answer not required when there is a protection of the fan ( s ) should be wired shut! Starts smoking before it catches on fire but continues to operate in some?! Ceiling or wall mounted models and components required by code the ventilation system is operating and the sensor s. Qualified person on the project a licensed Master HVAC contractor i am not a sub-stitute for an area! Easy online ordering for the ones who get it done along with 24/7 customer service, technical! Not serve as the primary fire detection system safety Book for Health Care,... To check local code requirements for each project | where are smoke duct detectors smoke detection NFPA. Guidelines, and recommendations when installing and testing smoke detectors are not required when there is a Requirement. And recommendations when installing and testing smoke detectors designed for prevention of smoke the basic Rundown for Field Installations where... Your browser only with your consent my answer for HVAC systems with airflows exceeding 2,000 cfm therefore, should... Very early & reliable detection of smoke commonly see these installed in the ductwork especially! And base are mounted within a sampling chamber or normally Closed, duct detectors required the...