DH100ACDCLPX Air Duct Smoke Detector with Extended Air Speed ...

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[3] Figure 1. Exploded View Of Duct Smoke Detector Components: DETECTOR COVER DETECTOR BOARD COVER MOUNTING SCREWS POWER BOARD TERMINAL STRIP METAL SAMPLING TUBE DETECTOR HOUSING CONDUIT HOLES SAMPLING TUBE FILTERS [4] Contents Of The Duct Smoke Detector Kit 1. Complete housing base and cover assembly 2. Pre-installed wiring harness 3. Two sampling tube filters (installed) 4. One test magnet 5. One sampling tube end cap NOTE: Sampling tubes must be ordered to complete the installation. They must be the correct length for the width of the duct where they will be installed. Refer to OEM supplier for correct part number. [5] Installation Sequence [5.1] Verify Duct Air Flow Direction And Velocity Model DH100ACDCLPX detectors are designed to be used in air handling systems having air velocities of 100 to 4000 feet per minute. Be sure to check engineering specifications to ensure that the air velocity in the duct falls within these limits. If necessary, use a velocity meter (anemometer) to check the air velocity in the duct. [5.2] Select Mounting Location The DH100ACDCLPX is intended for mounting on ductwork and/or brackets which have been pre-drilled with appropriate mounting holes. While other applications are possible, they are not covered within this manual. [5.3] Sampling Tube Installation Sampling tubes are identified by a series of air inlet holes along the tube. The correct length tube must be ordered and installed for each application. See Table 1 for a list of tubes which are compatible with this product. For optimal performance, it is recommended that the sampling tube extend at least 2 ⁄3 of the way across the duct width. Table 1. Sampling Tube Lengths Approximate Length Part Number to Order Replaces 12 inches STX-10 ST-1 18 inches STX-16 ST-1.5 36 inches STX-34 ST-3 The sampling tube must always be installed with the air inlet holes facing into the air flow. Figure 2 shows the various combinations of tube mounting configurations with respect to air flow. Mounting the detector in a vertical orientation is acceptable, provided that the air flows directly into the sampling tube holes, as indicated in Figure 3. NOTE: The sampling tube end cap is critical to the proper operation of the duct smoke detector. The end cap is needed to create the proper air flow to the sensor of the duct smoke detector. Figure 2. Tube mounting configurations with varying air flow direction: AIR FLOW DIRECTION DETECTOR HOUSING AIR FLOW DIRECTION DETECTOR HOUSING SAMPLING TUBE EXHAUST TUBE FOAM GASKETS DOTS INDICATE POSITION OF SAMPLING TUBE HOLES A. B. EXHAUST TUBE SAMPLING TUBE HORIZONTAL MOUNTING OF HOUSING EXHAUST TUBE SAMPLING TUBE C. D. VERTICAL MOUNTING OF HOUSING H0174-00 AIR FLOW DIRECTION DETECTOR HOUSING DETECTOR HOUSING AIR FLOW DIRECTION H0109-01 D200-33-00 2 I56-1944-07
Figure 3. Air duct detector sampling tube: Figure 5. Sampling tube filter installation: AIR HOLES STOP SCREW SAMPLING TUBE END CAP MOUNTING HOLES AT 90° INCREMENTS AIR FLOW DIRECTION H0171-00 Sampling tubes for this product are designed to be inserted from the outside, without removing the cover, prior to installing the detector into its application. 1. Install the end cap into the end of the tube farthest from the stop screw. 2. Slide the tube into whichever bushing will be used for the air inlet, and push it all the way to the stop. The end of the tube with the four small holes goes into the bushing. 3. Rotate the tube so that the holes face into the airflow, then adjust until the hole in the bushing lines up with one of the four mounting holes in the tube. 4. Secure the tube by inserting a #6 × 3 ⁄4˝ sheet metal screw through the hole in the bushing and the mounting hole in the tube. See Figure 4. Figure 4. Sampling tube connected to duct smoke detector: A78-2752-00 [5.4] Install the Detector Housing Feed the sampling tube and the exhaust port through the predrilled holes in the mounting location, then use two screws to secure the housing to the mounting surface. Caution: Do not overtighten the screws. [5.5] Air Filters Air filters must be installed in both the inlet and exhaust openings inside the detector. These filters are initially installed at the factory. To remove for cleaning. loosen the holding tab and pull the filter out. Replace the filters by pushing them into the sampling and exhaust tube holes, as shown in Figure 5, then replacing the holding tabs. CAUTION H0131-00 Filters require periodic cleaning or replacement, depending on the amount of dust and dirt accumulated. Visually inspect the filters at least quarterly; inspect them more often if the dust accumulation warrants it. See Section [6] for more information. Replacement filters can be ordered from System Sensor, 3825 Ohio Ave., St. Charles, IL 60174. (Exhaust tube/intake tube filter P/N F36-09-11) [5.6] Field Wiring Installation Guidelines All wiring must be installed in compliance with the National Electrical Code and the local codes having jurisdiction. Proper wire gauges should be used. The conductors used to connect smoke detectors to control panels and accessory devices should be color-coded to prevent wiring mistakes. Improper connections can prevent a system from responding properly in the event of a fire. For signal wiring, (the wiring between interconnected detectors or from detectors to auxiliary devices), it is usually recommended that single conductor wire be no smaller than 18 gauge. The duct smoke detector terminals accommodate wire sizes up to 12 gauge. Smoke detectors and alarm system control panels have specifications for allowable loop resistance. Consult the control panel manufacturer’s specifications for the total loop resistance allowed for the particular model control panel being used before wiring the detector loop. Wiring Instructions The DH100ACDCLPX detectors are designed for easy wiring. The housing provides a terminal strip with clamping plates. Wiring connections are made by stripping about 3 ⁄8″ of insulation from the end of the wire, sliding the bare end under the plate, and tightening the clamping plate screw. [5.7] Perform Detector Check 1. Perform STANDBY AND TROUBLE TEST per Section [6.2.1]. 2. Perform MAGNET TEST per Section [6.2.2.1]. The RTS451 test of Section [6.2.2.2] may substitute for this requirement. 3. Perform AIR FLOW TEST per Section [6.1.1]. 4. Perform SMOKE RESPONSE TEST per Section [6.1.2]. 5. Perform SENSITIVITY TEST per Section [6.2.3]. D200-33-00 3 I56-1944-07
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DH100ACDCLPX Air Duct Smoke Detector with Extended Air Speed ...

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