System Sensor DH100ACDCP Manual

I AND MAINTENANCE INSTRUCTIONS Air Duct Smoke Detector 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 from System Sensor NFPA 72 and 90A should also be referenced for detailed This manual shall be left with the owner user of 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 1 Limitations of Duct Smoke Detectors Exploded View of Duct Smoke Detector Components 2 Contents of the Duct Smoke Detector Kit Installation Sequence Duct Smoke Detector Maintenance and Test Procedures 5 Detector Cleaning Procedures Board Replacement Specifications General Description HVAC system supplies conditioned air to virtually every of a building Smoke introduced into this air duct sys will be distributed to the entire building Smoke detec designed for use in air duct systems are used to sense presence of smoke in the duct DH100ACDCP Air Duct Smoke Detector utilizes technology for the detection of smoke This 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 blowers change over handling systems etc These actions can facilitate the of toxic smoke and fire gases throughout the served by the duct system DH100ACDCP detector is designed to operate on VDC VAC 120 VAC or 240 VAC Alarm and supervi relay contacts are available for control panel interface initiation HVAC control and other auxiliary func Auxiliary relays are also provided for fan shut down 3825 Ohio Avenue St Charles Illinois 60174 FAX 630 377 6495 signaling of up to 9 other detectors in the loop for mul fan shut down These detectors are not designed for applications 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 A green LED flashes to indicate power a red LED local alarm indication and optional accessories a variety of annunciation capabilities DH100ACDCP can be reset by a momentary power the reset button on the front cover the control or remote reset accessory The DH100ACDCP incor a cover tamper feature that provides a trouble after 7 minutes if the cover is removed or improp installed Proper installation of the cover removes the condition Limitations Of Duct Smoke Detectors National Fire Protection Association has established DUCT DETECTORS MUST NOT BE USED AS A FOR OPEN AREA DETECTOR PROTECTION a means of providing life safety Nor are they a substi for early warning in a building regular fire detection Sensor supports this position and strongly recom that the user read NFPA Standards 90A 72 and 101 DH100ACDCP Air Duct Smoke Detectors are listed per 268A device will not operate without electrical power Fire may cause an interruption of power The system should be discussed with your local fire protec specialist device will not sense smoke unless the ventilation 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 within ALL electrical and environmental specifi 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 Smoke Detector Components HOLES STRIP BOARD TUBE SAMPLING TUBE SCREW BOARD TUBE Contents Of The Duct Smoke Detector Kit Complete housing base and cover assembly Two 10 sheet metal 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 inlet tube end plug One plastic sampling tube One 8 self tapping screw for the plastic sampling tube For ducts over 11 feet longer inlet sampling tubes be ordered to complete the installation They be the correct length for the width of the duct they will be installed See Table 1 on page to determine the inlet tube required for different widths Installation Sequence Verify Duct Air Flow Direction And Velocity DH100ACDCP detectors are designed to be used in handling systems having air velocities of 500 to 4000 per minute Be sure to check engineering specifications ensure that the air velocity in the duct falls within these If necessary use a velocity meter to check the velocity in the duct Drill The Mounting Holes the paper backing from the mounting template Affix the template to the duct at the desired location Make sure the template lies flat and on the duct Center punch holes A and B Drill the as indicated on the template MOUNTING 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 tube Make sure there are 6 exposed holes on plastic sampling tube Secure with the 8 self tapping into the bottom of the permanent tube shown in 1 For ducts greater than 11 feet in width refer to 5.4.1 and 5.4.2 2 Plastic sampling tube to duct smoke detector 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 3 Installation of foam gaskets over sampling bushings self tapping screws Secure the tube flange to the housing bushing with two HOLES FOR HOUSING DUCT WORK FLOW FLOW For tubes longer than the width of the air duct the tube extend out of the opposite side of the duct If are more than 2 holes in the section of the tube out of the duct select a different length using 1 Otherwise trim the end of the tube protruding the duct so that 1 to 2 of the tube extend out the duct Plug this end with the end plug and tape any holes in the protruding section of the tube sure to seal the duct where the tube protrudes 4 Air duct detector inlet sampling tube HOLES FACE AIR FLOW FLOW DIRECTION 5 Tube mounting configurations with varying flow direction INDICATE POSITION OF TUBE HOLES MOUNTING OF HOUSING MOUNTING OF HOUSING Only metal sampling tubes may be used on ori C and D no case should more than 2 air inlet holes be cut off the There must be a minimum of 10 holes in the tube to the air stream Installation For Ducts More Than 8 Feet Wide To install inlet tubes in ducts more than 8 feet work must be performed inside the air duct of air in ducts wider than 8 feet is accom by using the ST 10 inlet sampling tube If tube is shorter than the width of the air duct the end plug into the inlet tube as shown Sampling Tube Installation for Ducts Greater 11 2 Feet Wide sampling tube is identified by a series of air i