Last week we explored when duct-detectors are required under the International Mechanical Code (IMC). Ciao January 2019 [{"displayPrice":"$90.14","priceAmount":90.14,"currencySymbol":"$","integerValue":"90","decimalSeparator":".","fractionalValue":"14","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"nbwcQzpsRfU%2BzsbiRzhUO5QWEX8aOIUz7pabPb4hpqhP%2BxUu5ZIz4ZyNqjyOxQWsa2jJTrmmB4SJ%2FL9yJn8M0Yh0oVwqJGek0Uz6jPEAneCMe7Tav1%2BYVV0%2FcPC5P8mFCGX1ZU50uvDcz0NLHZSC5GjH%2FOEP3W7jkBUUeEcwQJX0BANOJV%2FZxJQURYDT%2BuTV","locale":"en-US","buyingOptionType":"NEW"}]. The user can then verify that the detector is working properly. (2) Rigid mounting to the wall of the duct with the sensing element protruding into the duct. September 2016 A green LED flashes to indicate power, a red LED signals local alarm indication, and optional accessories offer a variety of annunciation capabilities. Registration on or use of this site constitutes acceptance of our Privacy Policy. Furthermore, the NFPA specifically states that detectors installed in the air duct system shall not be used as a substitute for open-air . 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. February 2022 Please let us know here why this post is inappropriate. 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. In those cases a remote test station with remote reset should be installed for the duct detector. This implies that most businesses seem to accept the run to failure (RTF) maintenance plan for HVAC systems allow equipment to operate until it breaks. The remote test station simply shorts the contacts of the detector to ensure it is connected to the fire alarm circuit. These cookies will be stored in your browser only with your consent. This website uses cookies to improve your experience. Remove the duct smoke detector cover and blow out the residual aerosol smoke from the chamber and reset the duct smoke detector. Already a member? 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 wiring diagram graphics here are for illustration purposes only. It features a test/reset function activated by a key, which is included in this order. FDBZ-RTL - Remote Test Lamp for Conventional Detectors; ST-100 - Sampling Tube for Ducts 5 ft to 10 ft; AD-TGN - Test Gas Nozzle (package of 10) TSM-1 - Duct Detector Test Switch; ST-10 - Sampling Tube for Ducts 6 in. Of course, everything should be tested multiple times by different authorities to ensure the proper sequence of operation. The difference between duct detector test switches and regular switches. Design Challenge These cookies do not store any personal information. Always read the manufacturers instructions, guidelines, and recommendations when installing and testing smoke detectors in the ductwork. Of course, the answer is simple. June 2019 Duct detectors are designed to detect fires within the HVAC system and sound the alarm to give the occupants time to evacuate the building. However, we recommend installing them anyway. We also use third-party cookies that help us analyze and understand how you use this website. Have a question, comment, or request? December 2022 These links will lead to you purchase a product from another company. January 2020 Standpipes December 2018 Please try again later. I actually lost sleep. Made in United States. 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. Since HVAC systems do not fall under strict life-safety requirements, the duct detectors only become part of the fire alarm system due to their interconnection, and thus fall under the fire alarm rules and standards for ongoing testing and maintenance. Green indicates power as well as that the detector board is in place. Magnet . NFPA 90 states that the smoke detector should be installed in the SUPPLY after 2000 CFM, and IMC 606.2.1 says the RETURN. Promoting, selling, recruiting, coursework and thesis posting is forbidden. 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. For testing, the alarm can be enabled by a magnet activated test switch or by the optional remote test station. The NFPA 90A is specific in defining the position of the duct smoke detectors in the ductwork. 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. The duct smoke detectors latch into alarm state when alarm occurs. 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. July 2020 Gas Heating Troubleshooting and Repair Index, Duct Detectors Smoke Detection NFPA 90A Code Requirements. Air Products and Controls MSR Series Remote Operation Indicators. See bio here:About, All Can my company opt-out of testing and maintaining some of these duct detectors? And especially for the installation of air conditioning and heating equipment and components required by code. +1 (855) 500-6857 Announcements All good questions, but I'm as confused as you are. April 2019 And, finally, when is a remote test station required? SuperDuct detectors feature a unique design that speeds installation and . . Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.Learn more how customers reviews work on Amazon. These terminals are not supervised and the 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. December 2019 Finally, always follow all safety instructions which include code and manufacturer instructions. Some can also be interconnected to other duct detectors. Click Here to join Eng-Tips and talk with other members! Already a Member? 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. 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). October 2020 Some questions regarding duct detector remote test stations, reset switches, and code requirements.. . Do you agree with that? 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. Flammable & Combustible Liquids They are used to detect the presence of smoke in air ducts and trigger an alarm. Where are these required? Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. The pros and cons of duct detector test switches. 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. WIrInG DIaGram for rtS151 to D4120 4-WIre DuCt Smoke DeteCtor: fIGure 3. When a spot smoke detector gets installed inside of a housing. Resources. When installing duct-type smoke detectors, they can be installed as described below: (1) Rigid mounting within the duct. [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. February 2019 How to test your duct detector test switch? December 2017 When do Duct Detectors require that a RTS? Consult the SuperDuct installa-tion sheet for details. Alarm Bells: NFPA 72G; electric [vibrating,] [single stroke,] [8] [10] [ ] inch bell with Manufactured by System Sensor. If it were a manual pull station for the fire alarm panel that would be a different story. Refer to the detector installation instructions for additional information. . System Sensor 4W-B 4-Wire, Photoelectric i3 Smoke Detector, SYSTEM SENSOR 4WTA-B 4WTAB 12/24 VDC, Photoelectric Smoke Detector with Thermal, Sounder, and Base, System Sensor 4WT-B 4-wire, photoelectric i3 smoke detector with a 135 Degree fixed thermal sensor, LinkTap D1 Wireless Water Timer & Gateway - 2 Zone Smart Hose Faucet Timer, Built-in Flow Meters, Real-Time Fault Detection & Notification, Automatic Rain Skip, Better Range Than WiFi, IP66, Alexa, Automotive Smoke Machine | Built-in Air Motor | EVAP Vacuum Leak Detector Tester | Shop Series Plus | Made in The USA, Airthereal Water Leak Detector 3-Pack with WiFi Gateway, Water Alarm Sensor with 0-120dB 4-Level Adjustable Alarm, Leak and Drip Alert with App Alerts for Home, Basement (Not Support 5G WiFi), Room Alert 3E Temperature & Environment Monitor 24/7 Online & Software alerting and Reporting to Prevent Downtime, Made in The USA, LSENLTY WiFi CO2 Detector, 5s Refresh High Accuracy Smart CO2 Monitor, App Control Indoor CO2 Meter with Alert, 1 Year Data Storage Air Quality Monitor for Home, Office(Only Supports 2.4G WiFi), 1996-2023, Amazon.com, Inc. or its affiliates, System Sensor RTS151KEY Remote Test and Reset Station with Key for Duct Smoke Detector, No Import Fees Deposit & $11.46 Shipping to France. How does the fire alarm system installation company get stuck with testing and cleaning duct smoke detectors? In the meantime, smoke is being spread throughout the supply side and into the facility where people occupy the rooms. The test temperature shall not fall below 250F (121C). Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. It is important to test the duct detector on a regular basis to ensure that it is working properly. Career If a facility only has a few duct detectors, it may not be worth the investment to purchase a test switch. 2. Full content visible, double tap to read brief content. Please allow at least 24 hours from the time of order for shipping information to be available. When do Duct Detectors require that a RTS? June 2015 The remote reset will then reset the duct detector allowing the fire alarm system to fully reset. Learn more how customers reviews work on Amazon. Once connected to the fire alarm system, the rules for installation, testing, and inspecting them are covered in NFPA 72 under which compliance is required. The biggest con of using a duct detector test switch is the cost. Please try again. 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. October 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. They are not required for the operation of the detector, but they may be used to verify that the detector is working properly. It shall be capable of providing duct smoke detector status via the UL listed model APA151 Piezo Annunciator. Alarm test response time: 5 seconds ; Dimensions: 8.70 x 5.45 x 1.90 inches ; Operating environment: Temperature: 32 to 120 F (0 to 50 C) Humidity: 0 to 93% RH, noncondensing; Wire size: 14 to 22 AWG wire ; Detector address . The System Sensor RTS451KEY is an automatic fire detector accessory designed to test remotely located duct and beam detectors. Site Updates NFPA 90A is specific to Air Conditioning and Heating Systems installation. NFPA 90A also states: "Where an approved fire alarm system is installed in a building, the duct smoke detectors shall be connected to the fire alarm . 2.5 SIGNALING DEVICES . Special requirements for installation and successful operation make it necessary for a trouble-free installation. 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. New comments cannot be posted and votes cannot be cast, Welcome to /r/firealarms The duct smoke detector latches into alarm state when an alarm occurs. When do Duct Detectors require a RTS remote test? Under what circumstances will this be the case? Firstly, it is important to follow all the instructions provided with the new duct detector. Terminal connections shall be of the strip and clamp method suitable for 12-18 AWG . But opting out of some of these cookies may have an effect on your browsing experience. In labs, researchers used a spectrum of ultraviolet light called UVC to kill viruses. My understanding is that a reset switch is used to reset (or "clear") a duct a detector after it has been activated. June 2018 Do you know if it is a code requirement to support sampling tubes greater than 3 at the opposite end of the duct detector? 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. Their activation can be by area detectors that are installed in the related smoke compartment or by detectors that are installed in the air duct systems. We and our partners use cookies to Store and/or access information on a device. 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). News 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. Close this window and log in. Life Safety January 2018 Additionally, some test switches require specialised training to use, which can add to the cost. February 2021 Also, for 2-wire detectors, the LED will show red for alarm. Remember, others will be testing the installation, including the code inspector, fire inspectors, and commissioning people. 1. I could really use some clarifications on a couple things, so if anyone is able to help, I would really appreciate it. MSR-50RK - Key Operated Test / Reset Function. 15 19 14 3 20 2 11 2 6 Alarm Signal 1 Aux. to 1 ft; ST-50 - Sampling Tube for Ducts 3 ft to 5 ft; WP-2000 - Weather Resistant Enclosure for Duct Housing 2023 Endeavor Business Media, LLC. +1 (855) 500-6857 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 This is a video simplifying the duct smoke detectors, you will commonly see these installed in the duct work on HVAC systems. 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. JavaScript is disabled. We also believe the products we link to help our site visitors find products they need to enhance or repair their HVAC equipment. Use duct tape or other approved method to seal the aerosol smoke entry hole. Under what circumstances will this be the case? Factory New. Please email him your fire & life safety questions for potential inclusion in this column atgreg@firealarm.org. Your email address will not be published. The detector can be reset by a momentary power inter-ruption, by the magnet . Preface for the NFPA 90A requirements for duct detectors in air conditioning and heating equipment. Create an account to follow your favorite communities and start taking part in conversations. Furthermore, the RTS151KEY(A) is capable of resetting only certain models of detectors. 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. providing a trouble signal in the event that the front cover is removed. Brief content visible, double tap to read full content. 2023 Potter Electric Signal Company, LLC. The detector shall operate at air velocities up to 3000 feet per minute. Test Switch: 10 VA @ 32 VDC Reset Switch: 10 VA @ 32 VDC Alarm Response Time: 40 sec. This leads to a handful of reader questions: 1. Test switches can be quite expensive, and they are not always necessary. To test the duct detector, the user simply needs to activate the test switch. 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. 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. Required fields are marked *. They are a vital part of a buildings fire safety system and can help save lives in the event of a fire. 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. 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. Common functions include one or all of the following: BOSCH Security Systems, Inc. * FAD-325 Installation Instructions (HA-06-184. 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. As the title says, I have some questions about the fire alarm side of duct smoke detectors. November 2019 June 2016 Some of our partners may process your data as a part of their legitimate business interest without asking for consent. 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. JavaScript is disabled. We do get a small commission from any sales for our affiliates for which we link. It spreads smoke that can harm theoccupants of the facility where it is located. REMOTE TEST, RESET, AND ALARM STATION Labor-saving Remote Test/Reset stations provide alarm testing and indication from the convenience of a remote . Following up with a Request for Information can hold the job up sometimes. Thats why many commercial and industrial buildings are required to have duct detector test switches installed. Reviewed in the United States on October 16, 2014. Duct Detectors Smoke Detection NFPA 90A Code Requirements. Secondly, it will kill the fan so it does not continue to spread smoke before catastrophic failure of the fan occurs. November 2020 When will/won't they be combined? It may not display this or other websites correctly. 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. Most commercial buildings are required to have a fire alarm system that is regularly tested and maintained. The PAD100-DRTS provides a supervised remote test switch for the PAD100-DUCTR duct detector. I usually only see them when a duct detector is above a ceiling, but I don't see them 100% of the time. May 2015, Around here we laminate cardstock color prints for these cheatsheets. We are excited to introduce our new training hub, Potter Academy. February 2020 First, it will send an alarm to alert the facility operator and maintenance staff. Duct detector test switches are required in order to properly test and maintain these life-saving devices. The main difference in these two systems is the location of the blower relative to the burner. This will cause the detector to sound an alarm. Thanks for viewing and enjoy!Follow me on twitter!https://twitter.com/SER_Safetyinstagram:s.e.r._safetyThanks! Code Requirements. It shall be capable of local testing via magnetic switch or remote testing using the RTS151KEY(A) remote test station. A smoke duct detector on the supply side will do two things provided it is wired and controlled properly. When it comes to fire safety, there is no such thing as being too careful. My understanding is that a remote test station is used to test a duct smoke detector without a) smoking it or b) using, say, a magnet on it. We are sorry. And, finally, when is a remote test station required? Switch ratings (SD-TRK) Voltage: 125 Vdc, max. This allows the user to test the detector to ensure that it is working properly. Our payment security system encrypts your information during transmission. The PAD300-DUCT is designed and built to meet all local requirements, as well as the NFPA regulations regarding duct smoke detectors . R emove the screen by gently grasping on each side and pull- ing straight off. You also have the option to opt-out of these cookies. 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. Description The InnovairFlex D2 2-wire photoelectric duct smoke detector This commission helps us pay for the overhead of running this website. Factory New. If a remote reset station is needed, it simply resets the smoke detector after it has actuated. 14 Fire Safety Consultants, Inc. 27 Fire Alarm System - Testing 14.4 - Testing 14.4.1.2 - Reacceptance Testing Changes to site-specific software require: 100% test of all functions known to be affected by the change Additionally, 10% of initiating devices that are not directly affected by the change (up to 50 devices) shall be tested to verify correct system operation October 2017 Brand: Viking FireAlarm.com Part #: 83051 Manufacturer Part #: 19383MB/B. , Potter Announces the PAD300 D-TECT Addressable Sensors and Bases, Potters expanded line of D-TECT Sensors and bases have been designed from the ground up with unmatched, What People Are Saying About Working With Potter. Duct smoke detectors work by sampling air currents in air handling equipment to determine if smoke or fumes are present. Available as single-gang controllers or with a second-gang. We install the duct detector on the outside of a duct and from the housing Those two tubes then go into the duct. All rights reserved. Area detection can be used to shutdown units. 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. For 4-wire detectors, the System Sensor RTS451KEY features a multi-colored LED that alternates between steady green and red. Copyright 2023 HighPerformanceHVAC.com |. Description. For a better experience, please enable JavaScript in your browser before proceeding. Discover magazines for computer and electronics enthusiasts. FOR SM-501 SERIES DUCT SMOKE DETECTORS PRODUCT OVERVIEW . An example of data being processed may be a unique identifier stored in a cookie. The test switch doesn't test the duct detector per NFPA 72 Table 14.4.2.2(g), so it is just supplemental. 2. Keyed switch allows remote testing of the PAD100-DUCTR duct detector. The duct shall not . 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. May 2021 Therefore, they should complement the buildings fire detection system and not serve as the primary fire detection system. I know that there is a difference - but are these devices typically combined into a single device? April 2021 So, are duct detector test switches required? 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. Duct detector test switches: what are they and do you need them? Eligible for Return, Refund or Replacement within 30 days of receipt. In short, the answer is no duct detector test switches are not required. by High Performance HVAC | Duct Work | 4 comments. Click on the icon next to document links to add them to the download folder. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Not sure. Additionally, test switches make it possible to test multiple duct detectors at the same time, which can be very helpful in large facilities. * A common Remote reset switch will reset all detectors. PE Exam Is it sometimes the case that a duct detector is NOT resettable from the FACP? For a better experience, please enable JavaScript in your browser before proceeding. test switch or by the optional remote test station. 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. WIRING DIAGRAM FOR RTS151 TO D4120 4-WIRE DUCT SMOKE DETECTOR: RTS151 Remote Test Station Additionally, good technicians will educate themselves on the proper installation of an essential component. Duct detector test switches are devices that are used to test the operation of duct smoke detectors. The switch is used to simulate a smoke condition in the ductwork so that the detector can be tested. I would say it is operator preference. Keyed switch allows remote testing of the PAD100-DUCTR duct detector. July 2017 Then, turn the key back to the NORMAL position and remove. Ive had this question asked of me several times. The test shall be made in . NFPA 90a Duct Smoke Detector Requirements. If it were a manual pull station for the fire alarm panel that would be a different story.