Duct mounted smoke detector

A duct smoke detector is a device or group of devices used to detect the presence of smoke in the airstream of ductwork sections of the HVAC air handling systems typically used in commercial buildings. Duct Smoke Detectors are a key component of Fire Detection and Fire Alarm systems. The duct smoke detector samples air for early detection of smoke and products of combustion present in air moving through HVAC ducts. One unit can accommodate multiple installation footprints to overcome mounting constraints.

Tool-free, plug-in sampling tubes speed and simplify installation. For HVAC systems with airflows exceeding 0cfm, duct smoke detectors are required. This includes where multiple air handling systems utilize common ducts with a combined design capacity greater than 0cfm. Duct mounted smoke detectors are designed to provide a specific type of protection that cannot be duplicated by any other type of system.

However, there has been a tendency to misapply these devices in the past by attempting to use them as a substitute for an early warning smoke detection system. Therefore, duct smoke detectors are typically considered mechanical equipment devices instead of life safety devices. Both the IMC and NFPA 90A state that, if multiple air handlers serve the same area and the combined air volume is greater than 0cfm, detectors are required. The perforated sampling tube which spans the duct is placed in the airflow upstream of the exhaust tube which causes a pressure differential in the duct detector.

In multi-story buildings at each story with a commonly shared return and having a capacity greater than 10CFM’s. Where should duct smoke detectors be located? What do smoke detectors actually detect?

Should canned smoke be used to test smoke detectors? What elements are used in smoke detectors? Save Up to - Authorized Distributor - Expert Advice - Free Shipping! Fill Your Cart With Color today!

The DNR is an Intelligent non-relay photoelectric duct smoke detector for use with ONYX Series panels. The DNRW is a Watertight intelligent non-relay for use with ONYX Series panels. The FSL-751DNR is an Intelligent, high sensitivity duct smoke detector for use with ONYX Series panels. SuperDuct is a slim feature-rich alternative to bulky duct smoke detectors. Designed for easy installation and superb reliability, SuperDuct represents the perfect balance of practical design and advanced technology.

SuperDuct detectors feature a unique design that speeds installation and simplifies maintenance. The pri- mary purpose of duct smoke detection, then, is to prevent injury, panic, and property damage by reducing the spread (recirculation) of smoke. Duct smoke detection can also serve to protect the air conditioning system itself from fire and smoke damage.

Model can accommodate exposure to wide humidity and temperature ranges, plus detector comes with highly visible status. For supply air systems with a capacity greater than 0CFM you will find that a duct - mounted smoke detector is required downstream of filters and ahead of any branch connections in the supply system. Since the requirement for tying in duct detectors is in 9“Fire Alarm and Detection Systems,” the duct detector rule (901) doesn’t apply to what you’re doing. To understand how the IBC and IFC (International Fire Code) work, start by reading the “Scope” of the Fire Protection Systems section (Chapter 9).

To zoom in, use the keyboard to focus on the arrow icon within the product image. Once it receives focus, use the arrow keys on the keyboard to move and position the product image. The zoom feature provides no benefit to users who are blind.

Check Out Top Brands On eBay.