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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). This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. This category only includes cookies that ensures basic functionalities and security features of the website. Test switches also help ensure that your detectors are working properly. To test the duct detector, the user simply needs to activate the test switch. You are allowed to use a remote test switch for testing duct smoke detectors to meet the requirements of NFPA 72. Press question mark to learn the rest of the keyboard shortcuts, [V] Engineer NICET III, EDWARD Specialist. 7311 NW 12 St Unit 29 When do Duct Detectors require that a RTS? New comments cannot be posted and votes cannot be cast, Welcome to /r/firealarms All good questions, but I'm as confused as you are. (Remote Test Switch) NFPA 72 (2002) 72-43 5.14.5.8 Please let me know if you think my interpretation is correct on th You're not testing the operation of the duct detector, but you are testing the response of the fire alarm system to a simulated duct detector activation. July 2020 Audible and visual alarm indicators, remote status indicators and remote reset/test switches can be accommodated by the Firex Duct units by connecting to the D.C. voltage output terminals 16 to 20 (see page 6 for details). Get your copy here: NFPA 90a: Standard for the Installation of Air-Conditioning and Ventilating Systems. Signaling devices shall include: 1. Shipping cost, delivery date, and order total (including tax) shown at checkout. The test switch is usually located on the outside of the detector, near the bottom. My question here is; what, if anything governs this? Thanks. February 2019 +1 (855) 500-6857 Whenever smoke has been detected, the fan(s) should be wired to shut down. Resources. Nor should it serve as an early warning detection system. This commission helps us pay for the overhead of running this website. Terminal connections shall be of the strip and clamp method suitable for 12-18 AWG wiring. The biggest con of using a duct detector test switch is the cost. These notes are based on the Directorate General of Shipping Syllabus for the three month pre sea course for deck cadets All Products. These cookies will be stored in your browser only with your consent. If you'd be interested in purchasing a set of cheatsheets, let me know by, + Getcalculators, tools, resources and articles, Duct Detector Requirements for NFPA 90A [PDF], when duct-detectors are required under the International Mechanical Code (IMC). Flexible Drops In NFPA 72-19, remote test switches are simply a convenient functional test mechanism to prove that the AHU will shut down upon device activation per Table 14.4.3.2, Item 20, Interface Equipment at a periodic frequency specified by 14.4.4.4. Orange Park, FL 32073 AFC Series Addressable Fire Alarm Systems, Potter's AquaN: Nitrogen for Wet Systems, Fire Sprinkler Monitoring Training Manual, Fire Sprinkler Monitoring Training Course, Fire Sprinkler Monitoring Training Presentations. Duct smoke detector maintenance requirements are not included in the NFPA standard that covers HVAC systems (NFPA 90A or 90B); however, the International Code Councils 2015 Mechanical Code does state that the standard for maintenance inspections shall be performed in accordance with the ASHRAE/ACCA/ANSI standard number 180. Continue with Recommended Cookies. While I am a licensed Master HVAC contractor I am not a code official but here is my answer. Also, it is recommended that the installer be familiar with these requirements, with local codes, and any special requirements of the local authority having jurisdiction. Magnet . First, in practice, is there a difference between a "remote test station" and a "reset switch"? August 2018 Duct detectors are vital pieces of equipment in any HVAC system, but are often overlooked or not given the attention they deserve. Joe Meyer, PE, is a Fire Protection Engineer out of St. Louis, Missouri who writes & develops resources for Fire Protection Professionals. June 2019 For Air Conditioning and Ventilating Systems, this period is annually for automatic shutdown devices per NFPA 90A (2021) 6.4.1. Always follow duct detector manufacturers instructions and code for wiring. without a test switch, it is very difficult to properly assess whether or not a duct detector is working correctly. First, it will send an alarm to alert the facility operator and maintenance staff. Please use a different way to share. Course It may not display this or other websites correctly. Return air smoke detectors are not required when there is a protection of the space served by a system of area smoke detectors. If it were a manual pull station for the fire alarm panel that would be a different story. Description The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and *Eng-Tips's functionality depends on members receiving e-mail. January 2022 But what are they and what do they do? May 2017 2022-06-29 / Posted By : / uno chef in fattoria ribs / Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy. ${cardName} unavailable for quantities greater than ${maxQuantity}. It shall be capable of local testing via magnetic switch or remote testing using the RTS151KEY(A) remote test station. Normally Open or Normally Closed, Duct Detectors Smoke Detection Installation. Announcements Download All. According to NFPA 72, 14.2.7 you must be both qualified and experienced in the arrangement and operation of any interfaced equipment and any emergency control functions that are part of the fire alarm system. Brief content visible, double tap to read full content. But are these test switches really necessary? In my July issue column, End of Line: Beginning of a Problem? (see www.securityinfowatch.com/12346509), I quoted a section titled, Violation of Duties giving credit to the IBC, when in fact it was from my own states soon-to-be-adopted Ohio Building Code Section 104.4. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. We are excited to introduce our new training hub, Potter Academy. This quiz is based on the 2019 NFPA 72, 2018 NFPA 90A and 2018 International Building Code (IBC). Turn the key counterclockwise to the RESET position and hold. Promoting, selling, recruiting, coursework and thesis posting is forbidden. October 2022 For 4-wire detectors, the System Sensor RTS451KEY features a multi-colored LED that alternates between steady green and red. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Furthermore, the NFPA specifically states that detectors installed in the air duct system shall not be used as a substitute for open-air . Air Products and Controls MSR Series Remote Operation Indicators. The consent submitted will only be used for data processing originating from this website. 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. My interpretation of NFPA 72-23.8.5.4.6.4 is that a reset switch is required when the duct detector is not resettable from the FACP. If you do not understand the code or the requirements ask the engineer or another qualified person on the project. May 2020 March 2020 Of course, everything should be tested multiple times by different authorities to ensure the proper sequence of operation. They are used to detect the presence of smoke in air ducts and trigger an alarm. Amazon has encountered an error. The biggest pro of using a duct detector test switch is that it allows for a much more thorough and accurate test of the device. Therefore, it is wise to check local code requirements in addition to existing national codes. Factory New. The LED should turn off. Our payment security system encrypts your information during transmission. Sign up to receive information on our latest and featured product. July 2019 I'm wondering when they are required by code. Green indicates power as well as that the detector board is in place. In air supply systems with a capacity greater than 2000 CFM's downstream of the air filters and upstream of any branch ducts. December 2022 In labs, researchers used a spectrum of ultraviolet light called UVC to kill viruses. Sometimes the duct smoke detector is pre-wired into the HVAC unit. The switch is used to simulate a smoke condition in the ductwork so that the detector can be tested. The question: Where do you install duct detectors in the ductwork? Google Maps Location. https://www.linkedin.com/company/securityinfowatch-com, When it is and isnt required for fire alarm techs to address these systems, Mulligan Security appoints Chris Fitzpatrick as president, Pye-Barker Fire & Safety acquires AC Daughtry Security Systems, Minuteman Security Technologies announces rebranding as Minuteman Security & Life Safety, Greg Kessinger, SET, CFPS, IMSA, CDT, ICC. In case you are wondering, an accessible location is never behind locked doors or requires the use of a ladder because its installed too high on the wall or ceiling. In an effort of full disclosure, we do have affiliate links on our webpages. WIRING DIAGRAM FOR RTS151KEY(A) TO DH100 2-WIRE DUCT SMOKE DETECTOR: NOTE: Terminal 6 of the RTS151KEY(A) is not used when wired to a 2-wire detector. The Potter Electric PAD300-DUCT duct smoke detector provides early detection of smoke and products of combustion present in air moving through HVAC ducts in commercial, industrial and residential applications. The user can then verify that the detector is working properly. February 2020 While a simple difference, blow-through units provide multiple benefits for large . (7) (a). Your email address will not be published. Firstly, it is important to follow all the instructions provided with the new duct detector. Brand: Viking FireAlarm.com Part #: 83051 Manufacturer Part #: 19383MB/B. If a facility only has a few duct detectors, it may not be worth the investment to purchase a test switch. Always ensure you check the latest codes for current information. You are using an out of date browser. The way I read this I understand that when the Duct Detectors that are installed cannot be seen easily they are either required to have their own point or zone on the panel so you know exactly which detector activated or they need to have a RTS. 2012 International Mechanical Code (IMC) The 2012 IMC requires duct smoke detectors to be located in the return air duct or plenum upstream of any filters, exhaust air connections, outdoor air connections, or decontamination equipment and appliances. Duct Detectors. July 2015 It is mandatory to procure user consent prior to running these cookies on your website. I would say it is operator preference. March 2018 Heres why: While not required by code, test switches provide a convenient way to test your duct detectors without having to access the detector itself. This product is featured in the Potter Academy training hub. It shall be capable of local testing via magnetic switch or remote testing using the UL listed RTC100 Remote Test Coil accessor y with the RTS151 Remote Test Station. For a better experience, please enable JavaScript in your browser before proceeding. The test switch doesn't test the duct detector per NFPA 72 Table 14.4.2.2(g), so it is just supplemental. Please check your own individual states adopted language for clarification. Under what circumstances will this be the case? . Secondly, it will kill the fan so it does not continue to spread smoke before catastrophic failure of the fan occurs. It shall be capable of local testing via magnetic switch or remote testing using the RTS451KEY(A) remote test station. These terminals are not supervised and the The NFPA 90A is specific in defining the position of the duct smoke detectors in the ductwork. The remote test station simply shorts the contacts of the detector to ensure it is connected to the fire alarm circuit. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Duct Smoke Detection - NFPA 90A Code Requirements There are exceptions to the two basic requirements: Additionalreferences to smoke detector safety in air conditioning and heating systems installation can be found using the following resources: In addition to theinstallationrequirements for smoke dampers and fire dampers, the code requirement for any safety devices in ductwork ventilation systems is necessary for basic life and safety. Just got a call from the field asking if they could mount a remote test switch relatively high on the wall at 7 feet. Brief content visible, double tap to read full content. Design Challenge Thats why many commercial and industrial buildings are required to have duct detector test switches installed. The PAD100-DRTS provides a supervised remote test switch for the PAD100-DUCTR duct detector. This device is only required when the duct detector is not resettable from the FACU. Part of this maintenance is testing the function of the systems duct detectors. July 2017 Engineering drawings typically have the location of installation to comply with code requirements. They are a vital part of a buildings fire safety system and can help save lives in the event of a fire. True False Correct Answer: False . This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Already a Member? 3. How to install a duct detector test switch? by High Performance HVAC | Duct Work | 4 comments. We dont share your credit card details with third-party sellers, and we dont sell your information to others. SuperDuct is a slim feature-rich alternative to bulky duct smoke detectors. Copyright 2023 RYBB - Designed & Powered, SYSTEM SENSOR 2851BTH ELECTRONICS HEAT DETECTOR, System Sensor 2251 Photoelectric Smoke Detector, System Sensor 2W-B Photoelectric 2-Wire Smoke Detector, Download the Specification sheet in *.pdf format. 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. Remote station magnet For example, if the fan motor were to begin smoking the duct detector would, ideally, shut down the system before the fan caught on fire. Not sure what prompted the question nor what's driving the need to mount it at this level. to 1 ft; ST-50 - Sampling Tube for Ducts 3 ft to 5 ft; WP-2000 - Weather Resistant Enclosure for Duct Housing To view updated tracking on your order, please enter your customer purchase order number. Manufactured by System Sensor. Sprinkler Systems Some links on this website may take you to other third-party sites and you acknowledge and agree that HKTDC and the HKTDC Affiliates have no responsibility for the accuracy or availability of any information provided by those linked websites. Gas Heating Troubleshooting and Repair Index, Duct Detectors Smoke Detection NFPA 90A Code Requirements. To ensure reliability, we provide supervision and monitoring of critical equipment; however, when duct detectors are required by HVAC rules, they are not required to send signals to where people are on duty to respond, unless a fire alarm evacuation system is also required for that building. 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. March 2022 remote "test switches" are simply a convenient functional test mechanism to prove that the AHU will shut down upon device activation per Table 14.4.3.2, Item 20, "Interface Equipment" at a periodic frequency specified by 14.4.4.4. . NFPA 72-2013 & 2016 17.4.7 where "detectors more than 10ft above finished floor or in arrangements where the detector's alarm or supervisory indicator is not visible to responding personnel, the detectors shall be provided with remote alarm or supervisory indication in a location acceptable to the authority having . LEDs on each detector illuminate to provide local alarm indication, and optional accessories offer a varietyGARAGE of an-nunciation capabilities. When do Duct Detectors require a RTS remote test? November 2020 Description The InnovairFlex D2 2-wire photoelectric duct smoke detector Current: 30 mA, max. These links will lead to you purchase a product from another company. . Enhancements you chose aren't available for this seller. . Click the image to the right for purchase options of the UV light to protect your family. Specifications. Full content visible, double tap to read brief content. Finally, always follow all safety instructions which include code and manufacturer instructions. Also, for 2-wire detectors, the LED will show red for alarm. Life Safety November 2017 Alarm Bells: NFPA 72G; electric [vibrating,] [single stroke,] [8] [10] [ ] inch bell with The fire alarm systems primary goal is to enable occupants to escape more quickly and allow a safer building for firefighters to enter. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. Since this detector is mounted within the duct, NFPA requires that means must be pro-vided to monitor and test this detector from outside of the duct. The duct smoke detectors shall be connected to a fire alarm system where a fire alarm system is required by Section 907 . May 2021 Please try again later. Last week we explored when duct-detectors are required under the International Mechanical Code (IMC). Specifically for duct detectors, the test method table states, "Air duct detectors shall be tested or inspected to ensure that the device will sample the air stream. Close this window and log in. Calculators Duct detector test switches are usually located near the fire alarm control panel. NFPA 90A is specific to Air Conditioning and Heating Systems installation. It may not display this or other websites correctly. May 2019 We also use third-party cookies that help us analyze and understand how you use this website. April 2018 How to test your duct detector test switch? To accomplish this requirement, a remote test sta-tion (Model RTS451) and a remote test coil kit (Model RTC100) are provided, reference separate instructions and Includes initial monthly payment and selected options. Thanx John, we work by the same principle that the humble Ninjas live by; constant improvement. Duct detector test switches: what are they and do you need them? We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development.