System Sensor DH100LP Manual

I AND MAINTENANCE INSTRUCTIONS Air Duct Smoke Detector Extended Air Speed Range Innovair DH100LP model is a photoelectric detector ap for an extended air speed range of 100 to 4000 feet minute 0.5 m s to 20.3 m s and has an operational range of 32 to 131 0 to 55 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 shall be left with the owner user of equipment Model DH100LP is a direct replacement for Hon model 32002812 006 This detector must be tested and maintained following NFPA 72 requirements The detector be cleaned at least once a year of Contents General Description 1 Limitations of Duct Smoke Detectors 1 Exploded View of Duct Smoke Detector Components 2 Contents of the Duct Smoke Detector Kit 2 Installation Sequence 2 Duct Smoke Detector Maintenance Test Procedures 5 Detector Cleaning Procedures 7 Board Replacement 7 Specifications 8 8 General Description HVAC system supplies conditioned air to virtually ev area of a building Smoke introduced into this air duct will be distributed throughout the entire building detectors designed for use in air duct systems are to sense the presence of smoke in the duct DH100LP Air Duct Smoke Detectors utilizes pho technology for the detection of smoke This de method when combined with an efficient housing 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 3825 Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 can be taken to shut off fans blowers change over handling systems etc These actions can facilitate the of toxic smoke and fire gases throughout the served by the duct system detectors are designed to operate with 12 24VDC listed compatible 2 wire control panels Alarm current be limited to 130mA or less by the control panel Aux relay contacts for control purposes are not available use with the DH100LP Control must initiate from the panel testing the alarm can be enabled by a magnet activated switch or by the optional remote test station The duct detector latches into alarm state when an alarm oc A green LED flashes to indicate power a red LED sig local alarm indication and optional accessories offer a of annunciation capabilities DH100LP can be reset by a momentary power interrup the reset button on the front cover the control panel remote reset accessory Limitations Of Duct Smoke Detectors National Fire Protection Association has established DUCT DETECTORS MUST NOT BE USED AS A SUB FOR OPEN AREA DETECTOR PROTECTION as a of providing life safety Nor are they a substitute for warning in a building regular fire detection system Sensor supports this position and strongly recommends the user read NFPA Standards 90A 72 and 101 The Air Duct Smoke Detectors are listed per UL 268A device will not operate without electrical power situations may cause an interruption of power The safeguards should be discussed with your local fire specialist device will not sense smoke unless the ventilation sys is operating and the cover is installed this detector to function properly it MUST be installed to the instructions in this manual Furthermore detector MUST be protected from the elements and op within ALL electrical and environmental specifica listed in this manual Failure to comply with these may prevent the detector from activating smoke is present in the air duct Figure 1 Exploded View Of Duct Detector Components HOLES TUBE TUBE SAMPLING TUBE SCREW BOARD Contents Of The Duct Smoke Detector Kit Complete housing base and cover assembly Two 10 x 11 sheet metal machine screws for mounting Two sampling tube filters One test magnet Drilling template Two foam gaskets Four 6 self tapping mounting screws for the metal tube and optional exhaust tube extension One sampling tube end cap Metal sampling tube end plug One plastic sampling tube One 8 self tapping screw for the plastic sampling tube NOTE For ducts over 11 feet longer sampling tubes be ordered to complete the installation They must the correct length for the width of the duct where will be installed See Table 1 on page 3 to determine sampling tube required for different duct widths Installation Sequence Verify Duct Air Flow Direction And Velocity DH100LP detectors are designed to be used in air systems having air velocities of 100 to 4000 feet minute Be sure to check engineering specifications to that the air velocity in the duct falls within these pa If necessary use a velocity meter anemometer check the air velocity in the duct Drill The Mounting Holes the paper backing from the mounting template sup Affix the template to the duct at the desired mount location Make sure the template lies flat and smooth the duct Center punch holes A and B Drill the holes as on the template Sampling Tube Installation for Ducts Less 11 Feet Wide see Figure 2 Remove the front cover Slide the plastic sampling tube into the housing bushing Align the holes in the bushing with the holes in the sam tube Make sure there are six exposed holes on the STRIP BOARD MOUNTING sampling tube Secure with the 8 self tapping into the bottom hole of the permanent tube NOTE The sampling tube end cap is critical to the operation of the duct smoke detector The end is needed to create the proper air flow to the sensor the duct smoke detector NOTE For ducts greater than 11 feet in width refer to 5.4.1 and 5.4.2 Secure The Detector Housing To The Duct the foam gaskets over the tube bushings as shown in 3 Use the two 11 long sheet metal screws to screw detector housing to the duct Do not overtighten the screws 2 Sampling tubes connected to duct detector 3 Installation of foam gaskets over sampling bushings HOLES FOR HOUSING DUCT WORK Sampling Tube Installation of Ducts Greater 11 Feet Wide sampling tube is identified by a series of air inlet holes the tube One plastic tube is included for ducts up to 18 width All other lengths must be purchased separately the correct length as specified in Table 1 for width the duct where it will be installed It is recommended the sampling tube length extend at least 2 across the width for optimal performance The exhaust tube is onto the base of the duct housing and the A2440 Exhaust Tube Extension is available as an accessory in cases where the molded exhaust port does not extend least 2 inches into the duct sampling tube is always installed with the air inlet facing into the air flow To assist proper installation tube mounting flange is marked with an arrow Make the sampling tube is mounted so that the arrow points the air flow see Figure 4 Figure 5 shows the various of tube mounting configurations with respect air flow Mounting the detector housing in a vertical ori is acceptable provided that the air flows directly the sampling tube holes as indicated in Figure 4 1 Sampling tubes recommended for different widths Outside Duct Width Sampling Tube Recommended