The pros and cons of duct detector test switches. The duct smoke detector latches into alarm state when an alarm occurs. 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. (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 Just got a call from the field asking if they could mount a remote test switch relatively high on the wall at 7 feet. October 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. Last week we explored when duct-detectors are required under the International Mechanical Code (IMC). December 2019 MSR-50RK - Key Operated Test / Reset Function. The PAD100-DRTS module does not require an SLC loop address. August 2018 2.5 SIGNALING DEVICES . Remove the duct smoke detector cover and blow out the residual aerosol smoke from the chamber and reset the duct smoke detector. In most cases, yes. Not sure what prompted the question nor what's driving the need to mount it at this level. Sometimes the duct smoke detector is pre-wired into the HVAC unit. While I am a licensed Master HVAC contractor I am not a code official but here is my answer. In installations where the duct smoke detector's controls and indicators are hidden from view, a remote test station or an LED indicator can be connected to the detector to provide these functions. 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. As with our duct smoke detectors, all duct smoke detectors accessories are UL listed. 2-Wire Duct Smoke Detector - SuperDuct Series. 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. Air Products and Controls MSR Series Remote Operation Indicators. 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). For additional protection, you can also use UV Light that will kill harmful viruses and bacteria inside the airflow of the air handler. 2023 Potter Electric Signal Company, LLC. Oh my! Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Some can also be interconnected to other duct detectors. PE Exam This is a video simplifying the duct smoke detectors, you will commonly see these installed in the duct work on HVAC systems. Nor should it serve as an early warning detection system. Designed for easy installation and superb reliability, SuperDuct represents the perfect balance of practical design and advanced technology. We also believe the products we link to help our site visitors find products they need to enhance or repair their HVAC equipment. Announcements Code Requirements. Turn the key counterclockwise to the RESET position and hold. For a better experience, please enable JavaScript in your browser before proceeding. 8. Remote station magnet (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. Tools Learn more how customers reviews work on Amazon. It is important to test the duct detector on a regular basis to ensure that it is working properly. RYBB Fire Alarm has installed and is currently servicing a long list of residential and commercial locations in Miami, providing video surveillance, intrusion detection, and fire detection systems. 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. 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. The test switch is usually located on the control panel of the fire detection system. rybbfirealarm.com@gmail.com December 2018 In those cases a remote test station with remote reset should be installed for the duct detector. 2023 Endeavor Business Media, LLC. In this case the NFPA 90A requirements for HVAC systems and ductwork. 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 . Additionally, test switches make it possible to test multiple duct detectors at the same time, which can be very helpful in large facilities. Smoke dampers are provided with leakage and temperature ratings. There is no shame in the average/small alarm company avoiding any project with terms, for example, such as blast wall or deluge system or sprinkler system antifreeze and releasing system to name a few. I also wrote and article on hva. Products December 2022 The remote reset will then reset the duct detector allowing the fire alarm system to fully reset. Green indicates power as well as that the detector board is in place. They are usually red in color and have a clear cover so that they can be easily seen. Please allow at least 24 hours from the time of order for shipping information to be available. A smoke duct detector on the supply side will do two things provided it is wired and controlled properly. This will cause the detector to sound an alarm. Brief content visible, double tap to read full content. I could really use some clarifications on a couple things, so if anyone is able to help, I would really appreciate it. Smoke detectors are ideal for detecting a problem with the air handler. This means that it up to the AHJ to decide which standard they follow. How to install a duct detector test switch? July 2019 01 to 64 (64 point control panel) 01 to 127 (127 point control panel) Accessories: Remote test-reset station . Common functions include one or all of the following: BOSCH Security Systems, Inc. * FAD-325 Installation Instructions (HA-06-184. 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. 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 device is only required when the duct detector is not resettable from the FACU. Your email address will not be published. Area detection can be used to shutdown units. Temperature: -10C to 60C (14F to 140F) Humidity: 95% RH Non-condensing Max Listing: UL, FM, CE FIGURE 1. Already a member? Green indicates power as well as that the detector board is in place. Keyed switch allows remote testing of the PAD100-DUCTR 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. Remember, others will be testing the installation, including the code inspector, fire inspectors, and commissioning people. 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. See bio here:About, All Specifications. Please try again later. The duct shall not . The notificationplan shall be determined by FES. By joining you are opting in to receive e-mail. 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. 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. Available as single-gang controllers or with a second-gang. These links will lead to you purchase a product from another company. September 2018 But what are they and what do they do? by High Performance HVAC | Duct Work | 4 comments. Factory New. In air supply systems with a capacity greater than 2000 CFM's downstream of the air filters and upstream of any branch ducts. Compatible with all AP-C Duct Smoke Detectors. New comments cannot be posted and votes cannot be cast, Welcome to /r/firealarms The benefits of duct detector test switches. We have received your request and will respond promptly. Fire Alarm Download All. July 2016 The detector can be reset by a momentary power inter-ruption, by the magnet . When do Duct Detectors require that a RTS? In labs, researchers used a spectrum of ultraviolet light called UVC to kill viruses. 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. Create an account to follow your favorite communities and start taking part in conversations. This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. Duct Detectors. It may not display this or other websites correctly. Click Here to join Eng-Tips and talk with other members! 3 MIN READ. With key, for duct smoke detector, sold in each, System Sensor RTS151KEY remote Test and reset station with key for duct smoke detector. 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". 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. JavaScript is disabled. Description The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and October 2019 Why are Smoke Duct Detectors Required on the Supply Side as noted above? The NFPA 90A is specific in defining the position of the duct smoke detectors in the ductwork. I would say it is operator preference. There was a problem adding this item to Cart. 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). Site Updates First, in practice, is there a difference between a "remote test station" and a "reset switch"? Current requirements: Included in controller specification LED circuit ratings Voltage: 3 Vdc, max. Duct detector test switches are required in order to test the functionality of the detectors. Clear Folder For Air Conditioning and Ventilating Systems, this period is annually for automatic shutdown devices per NFPA 90A (2021) 6.4.1. providing a trouble signal in the event that the front cover is removed. February 2018 This leads to a handful of reader questions: 1. It is required in the NFPA 90A but not in the Mechanical Code. Terminal connections shall be of the strip and clamp method suitable for 12-18 AWG wiring. July 2020 I know that there is a difference - but are these devices typically combined into a single device? We accept improvement in any form including via grammar Nazi)))! It shall be capable of local testing via magnetic switch or remote testing using the RTS451KEY(A) remote test station. Gas Detector Problems and Troubleshooting. 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. As the title says, I have some questions about the fire alarm side of duct smoke detectors. February 2022 Finally, always follow all safety instructions which include code and manufacturer instructions. Smoke dampers operate automatically on detection of smoke and must function so that smoke movement through the duct is halted. 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. 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. Anyone with further comments on this please leave a comment below. The PAD300-DUCT is designed and built to meet all local requirements, as well as the NFPA regulations regarding duct smoke detectors . Current: 30 mA, max. These duct detectors need to be tested on an annual basis by performing what is called a smoke entry test. First, it will send an alarm to alert the facility operator and maintenance staff. It may not display this or other websites correctly. Ive had this question asked of me several times. Miami, FL 33126 PageBreak. +1 (855) 500-6857 Press question mark to learn the rest of the keyboard shortcuts, [V] Engineer NICET III, EDWARD Specialist.