System Sensor DH400ACDCP Manual

DH400ACDCP Air Duct Smoke Detector 3825 Ohio Avenue, St. Charles, Illinois 60174 FAX: 630-377-6495 AND MAINTENANCE INSTRUCTIONS Installing thoroughly read the System Sensor Guide for Proper of Smoke Detectors in Duct Applications (A05-1004), provides detailed information on detector spacing, zoning, wiring, and special applications. Copies this manual are available online at www.systemsensor. or via System Sensor toll free fax-back service, Docu- on Demand at 800/736-7672. NFPA Standards 72 and should also be referenced for detailed information. This manual should be left with the owner/user this equipment. This detector must be tested and maintained following NFPA 72 requirements. The detector be cleaned at least once a year. of Contents General Description Exploded View of Duct Detector Components Contents of the Duct Detector Kit Limitations of Duct Detectors Installation Sequence Duct Detector Maintenance and Test Procedures Detector Cleaning Procedures Specifications Test log of Tables and Figures 1: Duct Detector Exploded View 2: 3: Mounting Location of Speed Nuts 1: Inlet Sampling Tube Selection 4: 5: Sampling Tube Mounting Configurations 6: Sampling Tube Filter Installation 7: Wiring Diagram 8: Wiring Diagram No Control Panel 9: Wiring Diagram Accessories 10: Testing Detector Alarm 11: Detector Head Removal 12: RTS451/RTS451KEY Test Coil Installation 13: Photo Head Exploded View of Sampling Tube Gaskets Sampling Tube General Description HVAC system supplies conditioned air to virtually ev- area of a building. Smoke introduced into this air duct will be distributed to the entire building. Smoke designed for use in air duct systems are used to the presence of smoke in the duct. DH400ACDCP Air Duct Smoke Detector utilizes pho- technology for the detection of smoke. This smoke method, when combined with an efficient hous- design, samples air passing through the duct and allows of a developing hazardous condition. When suf- smoke is sensed, an alarm signal is initiated at the control panel monitoring the detector, and appropriate can be taken to shut off fans and blowers, change air handling systems, etc. These actions can facilitate management of toxic smoke and fire gases throughout areas served by the duct system. detectors are designed to operate from 24 24 VAC, 120 VAC, or 240 VAC. Alarm and supervisory contacts are available for control panel interface (alarm HVAC control, and other auxiliary functions. detectors are not designed for 2-wire application. testing, the alarm can be enabled by a magnet activated switch, by insertion of a calibrated test card into the chamber (photoelectronic version only), or by the remote test station. The duct smoke detectors latch alarm state when alarm occurs. LEDs on each detector to provide local alarm indication, and optional offer a variety of annunciation capabilities. detector can be reset by a momentary power inter- by the magnet activated reset switch, or by the remote test station. Figure 1. Exploded view of ductdetector components: SAMPLING TUBE SEPARATELY) HOLES DETECTOR STRIP BOARD DETECTOR TUBE BASE SCREWS ADAPTER HEAD MAGNET TUBE Contents Of The Duct Detector Kit Complete housing base and cover assembly Two #10 sheet metal mounting screws Two sampling tube filters One test magnet Drilling template Two 5/16 O-rings Two rubber tube bushing seals Four #6 self-tapping mounting screws for the sampling optional exhaust tube extension One filter adapter One inlet tube end plug Two #10 speed nuts The inlet sampling tube must be ordered separately. must be the correct length for the width of the duct where