Duct smoke detector installation

Install the duct smoke detector on a flat section of HVAC duct between six and ten duct widths from any bends or obstructions. Install supply -side detectors at a point downstream from the supply fan and after the air filter. INSTALLATION INSTRUCTIONS FOR THE DUCT SMOKE DETECTOR A. 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.

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. Smoke introduced into an air duct system will be distributed throughout the entire building.

Smoke detectors designed for use in air duct systems are used to sense the presence of smoke in the duct. 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.

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. Nor should it serve as an early warning detection system. How do I install hardwired smoke detectors?

Where should duct smoke detectors be located? Are your smoke and CO detectors installed correctly? Note: All duct detector models can be tested with actual smoke. Remove the duct detector cover.

Test the detector head by lighting a piece of cotton clothesline. Blow across the lit end of the clothesline toward the detector. 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.

Push the flared end over the sample tube you want to lengthen. 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.

The duct smoke detector samples air for early detection of smoke and products of combustion present in air moving through HVAC ducts. This detection metho when combined with an efficient housing design, samples air passing through the duct allowing detection of a developing hazardous condition. The FSL-751DNR is an Intelligent, high sensitivity duct smoke detector for use with ONYX Series panels.

Detector head sold separately. The LEDs on the detector should illuminate within one minute. ADSeries smoke duct detector should be greater than 0. Identify a code compliant location (supply or return side, or both) for the installation of the duct unit that will permit easy access for viewing and serviceability.

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.