December 2022 These links will lead to you purchase a product from another company. 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. The SL-2000 is designed and built to meet all local code requirements, as well as the NFPA and ICC standards regarding HVAC supply and return duct smoke detectors. (Remote Test Switch) NFPA 72 (2002) 72-435.14.5.8 Please let me know if you think my interpretation is correct on this matter. Remove the duct smoke detector cover and blow out the residual aerosol smoke from the chamber and reset the duct smoke detector. Thanks for viewing and enjoy!Follow me on twitter!https://twitter.com/SER_Safetyinstagram:s.e.r._safetyThanks! Life Safety Please try again later. These cookies will be stored in your browser only with your consent. Duct detectors are an important part of any fire detection system. Can my company opt-out of testing and maintaining some of these duct detectors? My understanding is that a reset switch is used to reset (or "clear") a duct a detector after it has been activated. While a simple difference, blow-through units provide multiple benefits for large . Duct detector test switches are devices that are used to test the operation of duct smoke detectors. Current: 0.5 A, max. Calculators All rights reserved. Yes, if the duct detector cannot be reset at the FACP or annunciator, then a separate test/reset station will need to be installed for resetting the duct detector per NFPA 72 section 23.8.5.4.6.4 Where duct smoke detectors are not resettable from the protected premises fire alarm system, a listed alarm/ supervisory indicator with an integral reset switch shall be provided in an accessible location.. Additionally, some test switches require specialised training to use, which can add to the cost. Smoke dampers operate automatically on detection of smoke and must function so that smoke movement through the duct is halted. Book Review [3] Contents of the Duct Detector Kit [4] Limitations of Duct Detectors DH400 detectors are designed to operate with 12 or 24 VDC [5] Installation Sequence UL listed compatible 2-wire control panels. AT DUCT DETECTOR METHOD #2 - TED TEST STATION FIGURE 5. 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. The benefits of duct detector test switches. July 2018 May 2017 Orange Park, FL 32073 Keyed switch allows remote testing of the PAD100-DUCTR duct detector. But are these test switches really necessary? Secondly, it will kill the fan so it does not continue to spread smoke before catastrophic failure of the fan occurs. 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. To test the duct detector, the user simply needs to activate the test switch. Login. Do you agree with that? This website uses cookies to improve your experience while you navigate through the website. Product Information: We do get a small commission from any sales for our affiliates for which we link. The System Sensor RTS451KEY is an automatic fire detector accessory designed to test remotely located duct and beam detectors. It shall be capable of providing duct smoke detector status via the UL listed model APA151 Piezo Annunciator. Already a Member? This category only includes cookies that ensures basic functionalities and security features of the website. 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. With key, for duct smoke detector, sold in each, System Sensor RTS151KEY remote Test and reset station with key for duct smoke detector. Description. They are not required for the operation of the detector, but they may be used to verify that the detector is working properly. The detector should sound an alarm if it is working properly. Please check your own individual states adopted language for clarification. MSR-50RK - Key Operated Test / Reset Function. Click Here to join Eng-Tips and talk with other members! Your email address will not be published. Just got a call from the field asking if they could mount a remote test switch relatively high on the wall at 7 feet. Always read the manufacturers instructions, guidelines, and recommendations when installing and testing smoke detectors in the ductwork. November 2021 October 2020 RTS151 REMOTE TEST STATION: FIGURE 2. May 2020 The duct smoke detector latches into alarm state when an alarm occurs. without a test switch, it is very difficult to properly assess whether or not a duct detector is working correctly. The detector shall operate at air velocities up to 3000 feet per minute. In those cases we would monitor the dry contacts on the duct detector to cause an alarm or supervisory condition at the main FACP but a reset of the FACP will not reset the duct detector in alarm. While I am a licensed Master HVAC contractor I am not a code official but here is my answer. 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. *Eng-Tips's functionality depends on members receiving e-mail. NICET January 2022 May 2015, Around here we laminate cardstock color prints for these cheatsheets. duct smoke detector Remote test station (rear view) 1234 12 3 4 14 13 12 11 2-wire duct . July 2020 The test switch is usually located on the outside of the detector, near the bottom. October 2019 R emove the screen by gently grasping on each side and pull- ing straight off. It features a test/reset function activated by a key, which is included in this order. Brand: Viking FireAlarm.com Part #: 84240 Manufacturer Part #: 23878AE. Sprinkler Systems 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. Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. If one senses smoke, the rest will switch their relays, with the triggered detector reporting to the fire alarm panel so the source can be pinpointed. Oh my! . ${cardName} not available for the seller you chose. How to test your duct detector test switch? Furthermore, the NFPA specifically states that detectors installed in the air duct system shall not be used as a substitute for open-air . It is important to test the duct detector on a regular basis to ensure that it is working properly. Code Requirements. Most commercial buildings are required to have a fire alarm system that is regularly tested and maintained. For those clients who wonder who is inspecting and testing HVAC duct detectors on a yearly basis, the answer is probably nobody; however, for those that do, it tends to fall on fire alarm installation companies because of NFPA 72. As with our duct smoke detectors, all duct smoke detectors accessories are UL listed. WIrInG DIaGram for rtS151 to D4120 4-WIre DuCt Smoke DeteCtor: fIGure 3. They are used to detect the presence of smoke in air ducts and trigger an alarm. This leads to a handful of reader questions: 1. I've typically been specifying them for detectors that are hard to get to, like if its installed in a rooftop unit, or somewhere where an 8' ladder wouldn't reach. 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. Duct Detectors Smoke Detection NFPA 90A Code Requirements. The System Sensor RTS451KEY is an automatic fire detector accessory designed to test remotely located duct and beam detectors. December 2020 In the event your product doesnt work as expected, or youd like someone to walk you through set-up, Amazon offers free product support over the phone on eligible purchases for up to 90 days. April 2018 SD505 Duct Smoke Detector Remote Test Switch; UTK Remote Probe; Sight Glass with Condensation Drain; ABS Sampling Pipe; Smoke and Heat Detector Test Kit; CO Sensor; No Entry Film; SOLO Universal Detector Removal Tool; Steel Pipe Type R2525-St; STGD Ring Nut; Scorpion Head Unit Kit SCORP 2001; 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. March 2019 Furthermore, the RTS151KEY(A) is capable of resetting only certain models of detectors. I actually lost sleep. Under what circumstances will this be the case? April 2017 June 2021 The housing goes around the detector and one of two sensing tubes. Send us a message! The test temperature shall not fall below 250F (121C). September 2019 Whenever smoke has been detected, the fan(s) should be wired to shut down. We work hard to protect your security and privacy. WIRING DIAGRAM FOR RTS151 TO D4120 4-WIRE DUCT SMOKE DETECTOR: RTS151 Remote Test Station Your email address will not be published. Gas Detector Problems and Troubleshooting. Yes, if the duct detector cannot be reset at the FACP or annunciator, then a separate test/reset station will need to be installed for resetting the duct detector per NFPA 72 section 23.8.5.4.6.4 . May 2022 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. How does the fire alarm system installation company get stuck with testing and cleaning duct smoke detectors? The test switch doesn't test the duct detector per NFPA 72 Table 14.4.2.2(g), so it is just supplemental. Standpipes The difference between duct detector test switches and regular switches. Specifications. September 2017 (7) (a). Test switches are required in order to properly test the detector and ensure that it is functioning correctly. You are using an out of date browser. Have a question, comment, or request? It shall be capable of local testing via magnetic switch or remote testing using the RTS151KEY(A) remote test station. Announcements . Engineering drawings do not always represent these details. June 2020 Flammable & Combustible Liquids Anyone with further comments on this please leave a comment below. Under what circumstances will this be the case? Tools In most cases, yes. (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 Part of this maintenance is testing the function of the systems duct detectors. Remember, others will be testing the installation, including the code inspector, fire inspectors, and commissioning people. Manufactured by System Sensor. 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. . I would say it is operator preference. October 2018 The test switch is usually located on the outside of the detector, near the bottom. Full content visible, double tap to read brief content. Not sure what prompted the question nor what's driving the need to mount it at this level. Fire Events Terminal connections shall be of the strip and clamp method suitable for 12-18 AWG wiring. Fire Alarm All good questions, but I'm as confused as you are. For additional information on Potter Fire Alarm Systems visit ourFire Training Videos Section. While the IMC is the most commonly-applied standard in the United States, it's not the only standard that dictates terms for duct detectors. Always ensure you check the latest codes for current information. Firstly, it is important to follow all the instructions provided with the new duct detector. JavaScript is disabled. Hold test magnet where indicated on the side of the duct smoke detector for more than 5 seconds. What happens when a fan motor catches fire or starts smoking before it catches on fire but continues to operate in some capacity? The Joint Commission/NFPA Life Safety Book for Health Care Organizations, U.L. There are two types of switches that are commonly used with duct detectors: test switches and regular switches. DNR(W) housings with a date code of 0013 or higher do not require external 24VDC for remote test applications when used with a remote-test-capable detector. The switch is turned on when the system is being tested and turned off when the test is complete. Additionally, some municipalities have more stringent codes in place. 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 . Following up with a Request for Information can hold the job up sometimes. Consult the SuperDuct installa-tion sheet for details. SuperDuct is a slim feature-rich alternative to bulky duct smoke detectors. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. And, finally, when is a remote test station required? Why are Smoke Duct Detectors Required on the Supply Side as noted above? There seems to be a conflict in the codes from the NFPA 90A and the International Mechanical Code. Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. October 2017 . 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. Smoke dampers are provided with leakage and temperature ratings. REMOTE TEST, RESET, AND ALARM STATION Labor-saving Remote Test/Reset stations provide alarm testing and indication from the convenience of a remote . 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. 2. Ciao To test the detector, simply press the switch and hold it for a few seconds. Miami, FL 33126 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. approved materials in accordance with Section 603 and the duct penetrating the wall complies with all of the following requirements: 3.1. March 2020 See bio here:About, All July 2017 April 2021 The test switch doesn't test the duct detector per NFPA 72 Table 14.4.2.2(g), so it is just supplemental. 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. . Download All. Please let us know here why this post is inappropriate. Thanks. Only the duct unit in alarm will permit resetting of the system from the built in test/reset switch on that particular duct unit. It looks like WhatsApp is not installed on your phone. When do Duct Detectors require that a RTS? October 2021 April 2022 This product is featured in the Potter Academy training hub. Use duct tape or other approved method to seal the aerosol smoke entry hole. Furthermore, consult the detector installation instructions for additional information. * A common Remote reset switch will reset all detectors. For additional protection, you can also use UV Light that will kill harmful viruses and bacteria inside the airflow of the air handler. WIRING DIAGRAM FOR RTS151KEY(A) TO DH100ACDC 4-WIRE DUCT SMOKE DETECTOR: FIGURE 6. For a better experience, please enable JavaScript in your browser before proceeding. January 2020 They are usually red in color and have a clear cover so that they can be easily seen. It is mandatory to procure user consent prior to running these cookies on your website. Reply. Return air smoke detectors are not required when there is a protection of the space served by a system of area smoke detectors. When either is detected, the device will close the dampers on the duct, shut down the fans and blowers to eliminate the oxygen source to help prevent the fire's spread, and trigger an audible and visible signal at the fire control panel. The question is: Where do you install these devices in the ductwork? June 2019 Just got a call from the field asking if . My question here is; what, if anything governs this? Is it sometimes the case that a duct detector is NOT resettable from the FACP?