January 2018 Question: Where to place smoke detectors in the ductwork on commercial projects to comply with code? This commission helps us pay for the overhead of running this website. July 2021 These terminals are not supervised and the . October 2021 Close this window and log in. 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. Thanx for the shout out for the grammar error.we appreciate it. September 2022 The remote test station simply shorts the contacts of the detector to ensure it is connected to the fire alarm circuit. 6.0 Alarm Zones: Each manual pull station, area or duct smoke detector, heat detector, sprinkler system water flow switch, and tamper switch shall annunciate as a uniquely identified point, and shall identify the device ID, location and zone assignment of the device. 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. Reply. +1 (855) 500-6857 The consent submitted will only be used for data processing originating from this website. Smoke dampers operate automatically on detection of smoke and must function so that smoke movement through the duct is halted. April 2019 Already a Member? Audible and visual alarm indicators, remote status indicators, and remote reset/test switches can be accommodated by the SM-501 Series duct units by connecting to DC voltage output terminals 16 through 21. Current: 4 A, max. Passive Fire Protection A01PC4 Apem modular switch contact block APEM 50021169 - Operating Temperature Range (): -20+55, suitable crimping terminal: A01 series, RoHS directive (corresponding to 10 substances): Correspondence, Switch Operation: DP Flexible Drops Just got a call from the field asking if they could mount a remote test switch relatively high on the wall at 7 feet. . Duct detector test switches are required in order to test the operation of the duct detector. 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. Reddit's International Fire Alarm Technicians Sub, Press J to jump to the feed. Clear Folder the detector, test the duct air velocity, temperature, and humidity to verify that it is within the operating range of the SuperDuct detector. :DS.E.R. Duct Detectors Smoke Detection NFPA 90A Code Requirements. The PAD100-DRTS provides a supervised remote test switch for the PAD100-DUCTR duct detector. Necessary cookies are absolutely essential for the website to function properly. Under what circumstances will this be the case? The System Sensor RTS451KEY is an automatic fire detector accessory designed to test remotely located duct and beam detectors. November 2017 MSR-50RK - Key Operated Test / Reset Function. For Air Conditioning and Ventilating Systems, this period is annually for automatic shutdown devices per NFPA 90A (2021) 6.4.1. Therefore, it is wise to check local code requirements in addition to existing national codes. The System Sensor RTS451KEY is an automatic fire detector accessory designed to test remotely located duct and beam detectors. 2023 Potter Electric Signal Company, LLC. Shipping cost, delivery date, and order total (including tax) shown at checkout. 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. Area detection can be used to shutdown units. May 2020 Round Duct Mounting Reference 2098-9806, Remote Test Station (below), provides a remote red LED status indicator and a remote test key switch mounted on a single gang stainless steel plate. 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. Oh my! 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. By joining you are opting in to receive e-mail. How to install a duct detector test switch? If you do not understand the code or the requirements ask the engineer or another qualified person on the project. I actually lost sleep. A. Get your copy here: NFPA 90a: Standard for the Installation of Air-Conditioning and Ventilating Systems. 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. 15 19 14 3 20 2 11 2 6 Alarm Signal 1 Aux. I usually only see them when a duct detector is above a ceiling, but I don't see them 100% of the time. Regular switches are not required for testing, but they can be used to turn the detector on and off as needed. . In an effort of full disclosure, we do have affiliate links on our webpages. 3 MIN READ. Terminal connections shall be of the strip and clamp method suitable for 12-18 AWG wiring. Duct Detectors. Then, turn the key back to the NORMAL position and remove. 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. 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. The detector can be reset by a momentary power inter-ruption, by the magnet . January 2022 Please use a different way to share. These links will lead to you purchase a product from another company. Click the image to the right for purchase options of the UV light to protect your family. The PAD100-DRTS module does not require an SLC loop address. 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). 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. . For 4-wire detectors, the System Sensor RTS451KEY features a multi-colored LED that alternates between steady green and red. Please allow at least 24 hours from the time of order for shipping information to be available. Test Switch: 10 VA @ 32 VDC Reset Switch: 10 VA @ 32 VDC Alarm Response Time: 40 sec. I was appalled to find compliment used where complement was appropriate in what seems to be an outerwise quite professional article. Switch ratings (SD-TRM) Voltage: 200 Vdc, max. Only the duct unit in alarm will permit resetting of the system from the built in test/reset switch on that particular duct unit. The test shall be made in . 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. November 2019 Available as single-gang controllers or with a second-gang. including two remote test stations and different means of visible and audible system annunciation. Description The InnovairFlex D2 2-wire photoelectric duct smoke detector With the weather-tight capabilities of the RT-3000, the small footprint of an HS-100, and the contractor favorite of the SL-2000, there is an APC detector for every situation. Manufactured by System Sensor. When do Duct Detectors require a RTS remote test? Announcements In this case, the duct detectors are ignored until they cause the building to get too hot or too cold because the forced air system is not functioning. They are not required for the operation of the detector, but they may be used to verify that the detector is working properly. You are using an out of date browser. To test the detector, simply press . System Sensor SCRH Strobe Ceiling Hi Cd Red, Silent Knight SD505-DTS-K Remote Test Switch, Siemens RL-HC Remote Test Lamps P/n: 500-033230, System Sensor RTS2-AOS Multi-signaling Accessory. Remote Test Switch: Key-operated switch mounted on flush cover with lamp to indicate detector actuation, [with one switch for each duct mounted smoke detector.] This category only includes cookies that ensures basic functionalities and security features of the website. Feb 5, 2014 #3 I'm not aware of any potential ADA requirements for the operation of a test switch. December 2019 Hold test magnet where indicated on the side of the duct smoke detector for more than 5 seconds. However, there are some pros and cons to using duct detector test switches that should be considered before making a decision. September 2017 8. Alarm current [6] Duct Detector Maintenance and Test Procedures must be limited to 100mA or less by the control panel. I would check with the manufacturer of the device to answer that question. The duct smoke detectors latch into alarm state when alarm occurs. January 2019 The switch is used to simulate a smoke condition in the ductwork so that the detector can be tested. approved materials in accordance with Section 603 and the duct penetrating the wall complies with all of the following requirements: 3.1. Ciao We do get a small commission from any sales for our affiliates for which we link. True False Correct Answer: False . You are allowed to use a remote test switch for testing duct smoke detectors to meet the requirements of NFPA 72. Output terminals are provided for a wide range of remote accessories such as horns, strobes, remote status indicators, and test/reset key switches or push buttons. 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. To view updated tracking on your order, please enter your customer purchase order number. Promoting, selling, recruiting, coursework and thesis posting is forbidden. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. duct smoke detector Remote test station (rear view) 1234 12 3 4 14 13 12 11 2-wire duct . There are two types of switches that are commonly used with duct detectors: test switches and regular switches. Reviews (0) The Viking VK3521 Quick Response Pendent Sprinkler is a small thermosensitive glass bulb spray sprinkler available with various finishes and temperature ratings to meet design requirements. Do you agree with that? Description. RTS151 REMOTE TEST STATION: FIGURE 2. Special requirements for installation and successful operation make it necessary for a trouble-free installation. Wiring Diagrams for Duct Smoke Detectors | Duct Detectors Smoke Detection NFPA 90A Code, Conclusion Duct Detectors Smoke Detection NFPA 90A Code Requirements, UVC Light to Kill Viruses and Other Airborne Harmful Things that Affect Health, NFPA 90a: Standard for the Installation of Air-Conditioning and Ventilating Systems, Duct Detectors Smoke Detection NFPA 90A Code Requirements. The switches are typically used to test the operation of the detectors alarm, to test the detectors ability to reset itself after an alarm, and to test the detectors ability to perform a self-diagnostic test. Nor should it serve as an early warning detection system. What happens when a fan motor catches fire or starts smoking before it catches on fire but continues to operate in some capacity? Floor Control Valve Google Maps Location, 1981 Wells Road Joe Meyer, PE, is a Fire Protection Engineer out of St. Louis, Missouri who writes & develops resources for Fire Protection Professionals. Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. There seems to be a conflict in the codes from the NFPA 90A and the International Mechanical Code. rybbfirealarm.com@gmail.com Some can also be interconnected to other duct detectors. Full content visible, double tap to read brief content. 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. Flammable & Combustible Liquids The test switch is usually located on the outside of the detector, near the bottom. Can my company opt-out of testing and maintaining some of these duct detectors? Product Information: How to test your duct detector test switch? In this case the NFPA 90A requirements for HVAC systems and ductwork. There was a problem adding this item to Cart. The test switch is used to manually activate the duct detector. July 2017 Where are these required? For additional information on Potter Fire Alarm Systems . When do Duct Detectors require that a RTS? Firstly, it is important to follow all the instructions provided with the new duct detector. This is especially helpful if your detectors are installed in hard-to-reach places. 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. March 2021 If a facility only has a few duct detectors, it may not be worth the investment to purchase a test switch. Create an account to follow your favorite communities and start taking part in conversations. Book Review In the meantime, smoke is being spread throughout the supply side and into the facility where people occupy the rooms. A smoke duct detector on the supply side will do two things provided it is wired and controlled properly. Manage Settings June 2019 NFPA 90A is specific to Air Conditioning and Heating Systems installation. Gas Detector Problems and Troubleshooting. Thanx John, we work by the same principle that the humble Ninjas live by; constant improvement. . duct detector remote test switch requirementsdiameter and circumference of a soda can in cm. Products [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. NFPA 90a Duct Smoke Detector Requirements. Career ${cardName} not available for the seller you chose. You are using an out of date browser. Every combination of Visual and Audible notification for Duct Smoke Detectors with Key Security or Magnet Remote Testing ability. It is important to test the duct detector on a regular basis to ensure that it is working properly. November 2020 May 2021 We are excited to introduce our new training hub, Potter Academy. Registration on or use of this site constitutes acceptance of our Privacy Policy. The question: Where do you install duct detectors in the ductwork? July 2019 Keyed switch allows remote testing of the PAD100-DUCTR duct detector. These duct detectors need to be tested on an annual basis by performing what is called a smoke entry test. 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. Duct Detectors Smoke Detection - NFPA 90A Code Requirements, Resource: The Fundamentals of HVAC Direct Digital Control. (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 How does the fire alarm system installation company get stuck with testing and cleaning duct smoke detectors? 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. August 2019 Life Safety Return2 NFPA 90A 6.4.2.1(2) 1 Installed "downstream of the air filters and ahead of any branch connections in air supply systems". Lastly, the goal is to detect smoke, shut off the fans, and send out an alarm. This device is only required when the duct detector is not resettable from the FACU. Rather than a RTS I should have listed a Remote indicator switch. 3. Of course, the answer is simple. Please try again. Engineering Codes, Standards & Certifications, Low-Volume Rapid Injection Molding With 3D Printed Molds, Industry Perspective: Education and Metal 3D Printing. Return air smoke detectors are not required when there is a protection of the space served by a system of area smoke detectors. Not sure. All Products. Copyright 1998-2023 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. Click Here to join Eng-Tips and talk with other members! Orange Park, FL 32073 Not sure what prompted the question nor what's driving the need to mount it at this level. Google Maps Location. PE Exam 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. Consult the SuperDuct installa-tion sheet for details. (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. In labs, researchers used a spectrum of ultraviolet light called UVC to kill viruses. without a test switch, it is very difficult to properly assess whether or not a duct detector is working correctly. 2-Wire Duct Smoke Detector - SuperDuct Series. It features a test/reset function activated by a key, which is included in this order. Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a parts function at the center of their design considerations. For additional information on Potter Fire Alarm Systems visit ourFire Training Videos Section. Additionally, always follow the code requirements for each project. providing a trouble signal in the event that the front cover is removed. If a detector is not working, the test switch can be used to isolate the problem and determine whether it is the detector or the wiring that is at fault. Factory New. The PAD100-DRTS module does not require an SLC loop address. May 2019 Brief content visible, double tap to read full content. The notificationplan shall be determined by FES. Includes initial monthly payment and selected options. JavaScript is disabled. The detector should sound an alarm if it is working properly. The duct shall not . This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. We also use third-party cookies that help us analyze and understand how you use this website. 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. September 2016 But opting out of some of these cookies may have an effect on your browsing experience. Duct detector test switches are required in order to test the functionality of the detectors. 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. By law, all buildings with HVAC systems must have a way to test the system to make sure it is working properly. PageBreak. In fact, a few paragraphs after the qualified and experienced rule, there is a requirement for everyone who is providing fire alarm system testing and inspection services to provide a written test plan that will document what devices will and will not be actually tested. This is where you can explain, for example, that your technician has only verified that each elevator landings smoke detector has properly caused the associated relay to operate a technician does not verify the proper response of the elevator system. How well do you know the installation and testing requirements for duct smoke detectors? Click on the icon next to document links to add them to the download folder. February 2019 Furthermore, the NFPA specifically states that detectors installed in the air duct system shall not be used as a substitute for open-air . Keyed switch allows remote testing of the PAD100-DUCTR duct detector. Additionally, some municipalities have more stringent codes in place. This website uses cookies to improve your experience. March 2019 They are used to detect the presence of smoke in air ducts and trigger an alarm. 7.0 Coordination: The NFPA 90A is specific in defining the position of the duct smoke detectors in the ductwork. Let's look at the requirements in two of the prominent codes and standards. For more information or questions about tracking, contact customer service at 800-325-3936. Ive had this question asked of me several times. August 2021 May 2017 Sometimes the duct smoke detector is pre-wired into the HVAC unit. The fire alarm systems primary goal is to enable occupants to escape more quickly and allow a safer building for firefighters to enter. Tools In addition to the testing required in Table 14.4.3.2(g) (1) and Table 14.4.3.2(h), test duct smoke detectors that use sampling tubes to ensure that they will properly sample the airstream in the duct using a method acceptable to the manufacturer or in accordance with their published instructions. to 1 ft; ST-50 - Sampling Tube for Ducts 3 ft to 5 ft; WP-2000 - Weather Resistant Enclosure for Duct Housing 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 . 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. R emove the screen by gently grasping on each side and pull- ing straight off. I know that there is a difference - but are these devices typically combined into a single device? The test switch doesn't test the duct detector per NFPA 72 Table 14.4.2.2(g), so it is just supplemental. It is required in the NFPA 90A but not in the Mechanical Code. December 2018 Engineering drawings typically have the location of installation to comply with code requirements. As the title says, I have some questions about the fire alarm side of duct smoke detectors. In short, the answer is no duct detector test switches are not required. This will cause the detector to sound an alarm. February 2022 Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. But what are they and what do they do? Smoke detectors are ideal for detecting a problem with the air handler. JavaScript is disabled. February 2018 +1 (855) 500-6857 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. Gas Heating Troubleshooting and Repair Index, Duct Detectors Smoke Detection NFPA 90A Code Requirements. Description The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and June 2015 Page 7: Testing Detector Alarm SUPERVISORY SIGNAL H0161-01 RESET TEST POWER (-) POWER (+) NOTE: Wiring diagram shown is for DH100ACDCLP 4-wire duct smoke detector system equipped without a control panel. February 2021 * A common Remote reset switch will reset all detectors. The main difference in these two systems is the location of the blower relative to the burner. . Many international projects under NFPA 5000 or . While I am a licensed Master HVAC contractor I am not a code official but here is my answer. The PAD100-DRTS provides a supervised remote test switch for the PAD100-DUCTR duct detector. Please let us know here why this post is inappropriate. Learn more how customers reviews work on Amazon. We are sorry to hear of the passing of Steve Schilb, longtime employee of Harrington Signal and Potter Electric. When it comes to fire safety, there is no such thing as being too careful. Therefore, they should complement the buildings fire detection system and not serve as the primary fire detection system. March 2022 Normally Open or Normally Closed, Duct Detectors Smoke Detection Installation. WIRING DIAGRAM FOR RTS151 TO D4120 4-WIRE DUCT SMOKE DETECTOR: RTS151 Remote Test Station I also wrote and article on hva. Duct detector test switches are devices that are used to test the operation of duct smoke detectors. Following up with a Request for Information can hold the job up sometimes. Always follow duct detector manufacturers instructions and code for wiring. Test switches, magnets, and other forms of testing that do not introduce smoke from the area being protected (i.e., the duct), through the sampling tube and into the detector chamber are not equivalent methods of testing the device per Table 14.4.3.2, 17.

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