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.
How to Wire a D4120 Duct Smoke Detector: A Step-by-Step Wiring …
In the D4120 duct smoke detector wiring diagram, there are several key components that need to be properly connected. These components include the power supply, control panel, smoke detector, and auxiliary devices such as horn/ strobe and remote annunciator.
InnovairFlex™ D4120 4-Wire Duct Smoke Detector | Smoke Detectors ...
InnovairFlex™ D4120 4-wire photoelectric duct smoke detectors feature a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 ft/min, temperatures of –4 °F to 158 °F, and a ...
Duct Smoke Detectors | Information by Electrical Professionals …
Oct 22, 2022 · We are receiving feedback that mechanical contractors typically furnish and install the duct smoke detectors and the only responsibility the electrical contractor has is getting the fire alarm wiring to the duct smoke detectors.
1. With power source de-energized and the smoke detector not installed, wire all connections per engineering drawings. Refer to the applicable figures below depending on your duct housing model number. 2. With all wiring in place, install the detector head. 3. Energize the duct detector.
SL-2000 Q&A| duct detector wiring | smoke detector support
Learn how to troubleshoot a smoke duct detector. Smoke detector wiring and interconnecting. Remote controls compatibility. ⇒ INTERCONNECT WIRING. Watch this video to see how to connect two SL-2000 duct smoke detectors together:
Read System Sensor’s Applications Guide for Duct Smoke Detectors (HVAG53), which provides information on detector spacing, placement, zoning, wiring, and special applications.
Increased wiring space with an added 3⁄4-inch conduit knockout. The DUCTSD 4-wire photoelectric duct smoke detector features a pivoting housing that fi ts both square and rectangular footprints and mounts to round or rectangular ductwork.
The purpose of this guide is to provide much needed information concerning the proper use of smoke detectors in duct applications. Duct mounted smoke detectors are designed to provide a specific type of protection that cannot be duplicated by any other type of system.
Honeywell D355PL Installation And Maintenance Instructions - ManualsLib
View and Download Honeywell D355PL installation and maintenance instructions online. Duct Smoke Detector. D355PL smoke alarm pdf manual download.