Silent Knight SK-Duct Addressable Photoelectric Duct Detector Manual

I Clintonville Road Northford CT 06472 1610 203 484 7161 Fax 203 484 7118 silentknight com AND MAINTENANCE INSTRUCTIONS Duct Smoke Detector Temperature Temperature Velocity Footprint Dimensions Footprint Dimensions Voltage Range Current Alarm Current LED on to 158 to 70 to 120 0 to 49 with module installed in the SK Duct to 158 to 70 to 93 Relative Humidity Non condensing to 4000 ft min 0 5 to 20 3 m sec 38 in L in W 5 in D 37 cm L 7 cm W 36 cm D 75 in L in W 5 in D 19 7 cm L 9 cm W 35 cm D 8 pounds 0 82 kg to 32 VDC 24 VDC one communication every 5 seconds with LED blink enabled 5 mA 24 VDC CURRENT LOADS AT 24 VDC mA Max mA Max mA mA mA Max mA The SK Duct comes with the sensor head factory installed part number SK PHOTOR of Contents Limitations of Duct Smoke Detectors 1 General Description 1 Contents of the Duct Smoke Detector Kit 1 Detector Installation 1 Sampling Tube Installation 2 Measurement Tests 3 Field Wiring 3 Verification of Operation 4 Detector Cleaning Procedures 4 Sensor Replacement 5 Optional Accessories 5 6 INSTALLING System Sensor Applications Guide Duct Smoke Detectors HVAG53 provides detailed information on detector spacing placement zoning and special applications Copies of this manual are available online www systemsensor com NFPA Standards 72 and 90A should also be refer for detailed information This manual shall be left with the owner user of this equipment This detector must be tested and maintained regularly following 72 requirements The detector must be tested an maintained regularly fol NFPA 72 requirements According to NFPA the detector should be visu inspected semiannually and functionally tested at least once a year This need to be more frequent depending on the air quality of the duct supply air LIMITATIONS OF DUCT SMOKE DETECTORS National Fire Protection Association has established that DUCT DETEC MUST NOT BE USED AS A SUBSTITUTE FOR OPEN AREA DETECTOR as a means 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 that the user NFPA Standards 90A 72 and 101 The SK Duct Air Duct Smoke Detectors listed per UL 268A device will not operate without electrical power Fire situations may an interruption of power The system safeguards should be discussed your local fire protection specialist device will not sense smoke unless the ventilation system is operating the cover is installed this detector to function properly it MUST be installed according to the in this manual Furthermore the detector MUST be operated within electrical and environmental specifications listed in this manual and the head installation manual Failure to comply with these requirements may the detector from activating when smoke is present in the air duct GENERAL DESCRIPTION introduced into this air duct system will be distributed throughout the building Smoke detectors designed for use in air duct systems are used sense the presence of smoke in the duct SK Duct Air Duct Smoke Detector utilizes photoelectric technology for detection of smoke This detection method when combined with an ef housing design samples air passing through the duct and allows detec of a developing hazardous condition When sufficient smoke is sensed alarm signal is initiated at the fire control panel monitoring the detector appropriate action can be taken to shut off fans blowers change over air systems etc These actions can facilitate the management of toxic and fire gases throughout the areas served by the duct system SK Duct incorporates a sensor cover tamper feature that provides a trou signal at the panel immediately if the cover is removed or improperly in Proper installation of the sensor cover removes the trouble condition programmed with the system control panel two LEDs on each duct smoke light to provide local visible indication SK Duct provides a remote alarm output for use with auxiliary devices as the RA400Z RA100Z remote LED annunciator as well as remote test with the RTS451 RTS151 or RTS451KEY RTS151KEY Remote Test DETECTOR FEATURE SET Utilizes plug in head part number SK PHOTOR Sampling tubes install from front and rear Compatible with existing accessories Able to address detector per code switches on sensor head CONTENTS OF THE DUCT SMOKE DETECTOR KIT Sensor power board assembly and covers sensor head is factory installed Three 10 sheet metal screws for mounting Drilling template One sampling tube end cap One plastic exhaust tube A sampling tube must be ordered to complete the installation It must the correct length for the width of the duct where it will be installed See 1 on page 3 to determine the inlet tube required for different duct widths DETECTOR INSTALLATION VERIFY DUCT AIR FLOW DIRECTION AND VELOCITY SK Duct detectors are designed to be used in air handling systems hav air velocities of 100 to 4000 feet per minute Duct widths from 6 inches to feet can be accommodated Be sure to check engineering specifications to that the air velocity in the duct falls within these parameters If neces use a velocity meter anemometer to check the air velocity in the duct 1 EXPLODED VIEW OF DUCT SMOKE DETECTOR COMPONENTS TUBE MODULE HEAD SENSOR HEAD IS ONLY ON SPECIFIED MODELS DETERMINE MOUNTING LOCATION AND CONFIGURATION ducts wider than 18 inches it is recommended that the detector be downstream of a bend obstruction in the duct or the supply or air inlet Installation of duct detectors can be on or within a commercial rooftop heating and air conditioning system fire smoke dampers economizers They may be mounted in either the supply and or return air as determined by local code a suitable location is selected determine if the detector is to be mounted a side by side configuration or a top over bottom as shown in Figure 2 If mounting in the square configuration the rear attachment screw rotate the unit at hinge and replace the into the new attachment hole as shown in Figure 2 Do NOT remove hinge screw during this process Final installation approval shall be based passing differential pressure and smoke entry tests described in the Mea Tests section DRILL THE MOUNTING HOLES the paper backing from the mounting template supplied Affix the to the duct at the desired mounting location Make sure the template flat and smooth on the duct FOR RECTANGULAR SIDE BY SIDE MOUNTING CONFIGURATION punch at 4 target centers 2 for sampling tubes and 2 for rectangular configuration mounting tabs as shown on mounting template pilot holes at target centers and cut two 1 375 inch diameter holes a 13