System Sensor DH100ACDC Smoke Alarm User Manual
Contents
1. 03 to 0 3 sec 03 to 0 3 sec Reset time by power down 0 6 sec max 0 6 sec max 0 6 sec max 0 6 sec max Power up time 34 sec max 34 sec max 34 sec max 34 sec max Alarm response time 2 to 17 sec 2 to 17 sec 2 to 17 sec 2 to 17 sec Sensitivity Test Max standby current See detector label See detector label See detector label Power Supply Voltage 20 29 VDC 24 VAC 50 60 Hz 120 VAC 50 60 Hz 220 240 VAC 50 60 Hz CURRENT REQUIREMENTS USING NO ACCESSORIES See detector label CONTACT RATINGS Alarm initiation contacts SPST 2 0A 30 VDC resistive Alarm auxiliary contacts DPDT 10A 30 VDC 10A 250 VAC Note Alarm auxiliary contacts must switch 100 mA minimum at 5VDC Alarm auxiliary contacts shall not be connected to inititaing circuits of control panels Use the alarm initiation contact for this purpose Trouble contacts SPDT 2 0A 30 VDC resistive ACCESSORY CURRENT LOADS AT 24 VDC DEVICE STANDBY ALARM APA451 12 5mA Max 30mA Max PA400 OmA 15mA Max RA400Z OmA 10mA Max RTS451 RTS451KEY 12mA 7 5mA Max NOTE When a unit is powered at the 120VAC or 220 240VAC input any combination of accessories may be used such that the given accessory loads are 60 mA or less in the standby state 110 mA or less in the alarm state Three Year Limited Warranty System Sensor warrants its enclosed air duct smoke detector to be free from defects in materials and workmanship2. Aux Power e Green LED Power Sup N O Common Sup COM Reset Aux Power Common NOTE Wiring diagram shown is for DH100ACDC 4 wire duct smoke detector system equipped without a control panel DH100ACDC Unit two IMPORTANT ALL INTERCONNECTED UNITS MUST BE POWERED BY THE SAME INDEPENDENT POWER SUPPLY 156 1147 07 housing to the duct CAUTION Do not overtighten the screws Figure 3 Installation of foam gaskets over sampling tube bushings SCREW HOLES FOR ATTACHING HOUSING A78 2045 00 5 4 Sampling Tube installation for Ducts Greater Than 11 2 Feet Wide The sampling tube is identified by a series of air inlet holes on the tube A telescoping tube is included for ducts up to 18 in width All other lengths must be purchased sepa rately Order the correct length as specified in Table 1 for width of the duct where it will be installed The exhaust tube is molded onto the base of the duct housing and the A2440 00 Exhaust Tube Extension is available as an acces sory in those cases where the molded exhaust port does not extend at least 2 inches into the duct The inlet tube is always installed with the air inlet holes facing into the air flow To assist proper installation the tube s mounting flange is marked with arrows Make sure the inlet tube is mounted so that the arrows point into the air flow see Figure 4 Figure 5 shows the various combi nations of tube mounti
3. Entry Tests 6 1 1 Air Flow To verify sufficient sampling of ducted air use a manometer to measure the differential pressure created from air flow across the sampling tubes The pressure should measure no less than 0 03 inches of water and no greater than 1 4 inches of water The air handler must be operating for this test 6 1 2 Smoke Response To determine if smoke is capable of entering the sensing chamber visually identify any obstructions Plug the ex D100 68 00 haust and inlet tube holes to prevent ducted air from carry ing smoke away from the detector head then blow smoke such as cigarette cotton wick or punk directly at the head to cause an alarm REMEMBER TO REMOVE THE PLUGS AFTER THIS TEST OR THE DETECTOR WILL NOT FUNC TION PROPERLY 6 1 3 Filter Replacement The filters do not substantially affect smoke performance even when up to 90 of the filter is clogged Quarterly vi sual inspection usually suffices to determine whether the filters should be replaced because only a high percentage of contamination affects performance If further testing is re quired compare differential pressure readings with and without the filters installed If the difference exceeds 10 replace the filters In no case should the pressure differen tial fall below 0 03 inches of water 6 2 Standby Alarm And Sensitivity Tests 6 2 1 Standby And Trouble Standby Look for the presence of the flashing green LED through the tra
4. diagram 15 ALARM SIGNAL O cK AUX POWER STS N 20 t DUCT DETECTOR DH100ACDC PA400 OPTIONAL AUDIBLE ALERT ALARM SIGNAL AUX POWER DUCT DETECTOR RA400Z OPTIONAL DH100ACDC REMOTE LED ANNUNCIATOR ACCESSORY CURRENT LOADS AT 24 VDC DEVICE STANDBY ALARM APA451 12 5mA Max 30mA Max PA400 OmA 15mA Max RA400Z OmA 10mA Max RTS451 RTS451KEY 12mA Max 7 5mA Max When a unit is powered at the 120VAC or 220 240VAC input any combination of accessories may be used such that the given accessory loads are 60mA or less in the standby state 110mA or less in the alarm state Figure 11 Testing detector alarm A78 2325 00 6 2 2 2 RTS451 RTS451KEY Remote Test Station The RTS451 RTS451KEY Remote Test Station facilitates test of the alarm capability of the duct smoke detector as indicated in the RTS451 RTS451KEY manual The DH100ACDC duct smoke detector can be reset by the RTS451 RTS451KEY If a system control panel is used the panel itself may also require testing To install the RTS451 RTS451KEY connect the device as shown in Figure 9 wire runs must be limited to 25 ohms or less per interconnecting wire 6 2 3 Sensitivity Tests 6 2 3 1 MOD400 or MOD4OOR Test After verification of alarm capability use the MOD4OOR test module with a voltmeter to check detector sensitivity as in dicated in the
5. test module s manual The housing cover must be removed to perform this test D100 68 00 A78 2354 05 If test module readings indicate that the detector head is outside of the acceptable range that is printed on the label of the detector the detector chamber requires cleaning per Section 7 of this manual 7 Detector Cleaning Procedures Notify the proper authorities that the smoke detector sys tem is undergoing maintenance and that the system will temporarily be out of service Disable the zone or system undergoing maintenance to prevent unwanted alarms and possible dispatch of the fire department 7 1 Air Filters 1 Turn off power to the system 2 Remove and inspect sampling tube filters 3 If filters are heavily coated with dirt replace them with new filters If they are not heavily coated use a vacuum cleaner or compressed air nozzle to remove dust then reinstall the filters 7 2 Photo Detector Boards 1 Remove the screen by gently grasping on each side and pulling straight off 2 Lift the photo chamber in the same fashion Vacuum the screen and cover Use clean compressed air to loosen and blow out any remaining debris Replacement screens S08 39 01 are available 3 Vacuum photo chamber then use clean compressed air to blow area clean 4 Replace the chamber by pressing it onto the base Press the screen into place It should fit tightly on the chamber 7 3 lon Detector Boards 1 Brush or v
6. 2 Vacuum sensing chamber before using clean com pressed air to loosen and blow out any remaining debris 8 0 Board Replacement 8 1 Detector Board Replacement 1 Remove the two detector board mounting screws 2 Pull gently on the board to remove it 3 To replace the board align the board mounting fea tures holes and the interconnect terminals Push the board into place Secure board with the two mounting screws gt 8 2 Power Board replacement 1 Disconnect wiring from the terminal block 2 Remove the two power board mounting screws 3 Pull gently on the board to remove it 4 To replace the board align the board mounting fea tures holes and the interconnect terminals Push the board into place 5 Secure board with the two mounting screws 6 Re connect wiring to terminal block 9 Model DH100ACDC Air Duct Smoke Detector Specifications Temperature DH100ACDCP 32 to 131 F 0 to 55 C DH100ACDCI 32 to 120 F 0 to 49 C Humidity 10 to 93 R H noncondensing Air Velocity 500 to 4000 ft min 2 5 to 20 3 m sec Dimensions 14 38 Lx 5 5 W x 2 75 D 37cm L x 14cm W x 7cm D Weight 3 75 pounds 1 7 kg Electrical Specifications Power supply voltage 20 29 VDC 24 VAC 50 60 Hz 120 VAC 50 60 Hz 220 240 VAC 50 60 Hz Input capacitance 270 UF max 270 uF max N A N A Reset voltage 3 0 VDC min 2 0 VAC min 10 VAC min 20 VAC min Reset time with RTS451 03 to 0 3 sec 03 to 0 3 sec
7. A green LED flashes to indicate power a red LED signals local alarm indication and optional ac cessories offer a variety of annunciation capabilities The DH100ACDC can be reset by a momentary power in terruption the reset button on the front cover the control panel or remote reset accessory 2 Limitations Of Duct Smoke Detectors AWARNING The National Fire Protection Association has established that DUCT DETECTORS MUST NOT BE USED AS A SUB STITUTE FOR OPEN AREA DETECTOR PROTECTION as a means of providing life safety Nor are they a substitute for early warning in a building s regular fire detection system System Sensor supports this position and strongly recommends that the user read NFPA Standards 90A 72 and 101 The DHI100ACDC Air Duct Smoke Detectors are listed per UL 268A This device will not operate without electrical power Fire situations may cause an interruption of power The system safeguards should be discussed with your local fire protection specialist AWARNING This device will not sense smoke unless the ventilation sys tem is operating and the cover is installed AWARNING For this detector to function properly it MUST be installed according to the instructions in this manual Furthermore the detector MUST be protected from the elements and op erated within ALL electrical and environmental specifica tions listed in this manual Failure to comply with these requirement
8. Smoke detec tors designed for use in air duct systems are used to sense the presence of smoke in the duct Model DH100ACDC Air Duct Smoke Detectors are supplied as an ionization model or photoelectronic model These two smoke detection methods are combined with an effi cient housing design that samples air passing through a duct and allows detection of a developing hazardous condi tion When sufficient smoke is sensed an alarm signal is initiated at the fire control panel monitoring the detector and appropriate action can be taken to shut off fans blow ers change over air handling systems etc These actions can facilitate the management of toxic smoke and fire gases throughout the areas served by the duct system DHI100ACDC detectors are designed to operate on 24 VDC VAC 120 VAC or 240 VAC Alarm and supervisory relay con D100 68 00 S Saison A Division of Pittway 3825 Ohio Avenue St Charles Illinois 60174 1 800 SENSOR2 FAX 630 377 6495 tacts are available for control panel interface alarm initia tion HVAC control and other auxiliary functions Auxiliary relays are also provided for fan shut down or signaling of up to 9 other detectors in the loop for multiple fan shut down These detectors are not designed for 2 wire applications For testing the alarm can be enabled by a magnet acti vated test switch or by the optional remote test station The duct smoke detector latches into alarm state when an alarm occurs
9. acuum inside area of cover Chamber may then be blown out using clean compressed air 156 1147 07 Figure 7 System wiring diagram for 4 wire duct smoke detectors detectors powered from initiating circuit ACAUTION Do not loop wire under terminals when wiring detectors Break wire runs to provide system supervision of connections aa ie 220 240 VAC ALARM AUXILIARY CONTACTS FOR FAN SHUTDOWN ETC POWER INPUTS ACCEPT 24 VDC 24 VAC 50 60 HZ 120 VAC 50 60 HZ OR 220 240 VAC 50 60 HZ CONNECT POWER SOURCE TO APPROPRIATE TERMINALS OF EACH DETECTOR AUX CONTACT RATINGS l 16 6 17 7 18 8 tna g 20 PO RESISTIVE l NOT INTENDED FOR 2S ne c No No P Pel CONNECTION TO CONTROL l l PANELS a l l l l l l l ALARM AUXILIARY CONTACTS SHOWN IN STANDBY CONTACTS TRANSFER DURING ALARM AS INDICATED BY THE ARROWS SUPERVISORY TROUBLE CONTACTS 3 14 TROUBLE CONTACT RATING 2 0 A 30 VDC resistive TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS REMOVED OR WHEN TAMPER FEATURE TIMES OUT OPEN CONTACTS SIGNAL TROUBLE CONDITION TO PANEL ALARM CONTACTS SHOWN INITIATION OPEN IN STANDBY CONTACTS CONTACTS CLOSE IN ALARM Q ALARM INITIATION LOOP 4 UL LISTED 4 WIRE FIRST DETECTOR IN THE LOOP CONTROL PANEL DH100ACDC Figure 8 Wiring diagram for DHLOOACDC to APA451 DH100ACDC APA451 Alarm Signa
10. fore wiring the detector loop Wiring Instructions The DH100ACDC detectors are designed for easy wiring The housing provides a terminal strip with clamping plates Wiring connections are made by stripping about 3 s inch of insulation from the end of the wire sliding the bare end under the plate and tightening the clamp ing 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 5 8 Install The Cover Install the cover using the four screws that are captured in the housing cover Be certain filters are installed as speci fied in Section 5 5 Make sure that the cover fits into the base groove and that all gaskets are in their proper posi tions Tighten the four screws 6 Duct Smoke Detector Maintenance And Test Procedures Test and maintain duct detectors as recommended in NFPA 72 The tests contained in this manual were devised to as sist maintenance personnel in verification of proper detec tor operation Before conducting these tests notify the proper authorities that the smoke detection system will be temporarily out of service Disable the zone or system under test to prevent unwanted alarms 6 1 Smoke
11. l O Alarm Aux Power Common NOTE Wiring diagram shown is for DH100ACDC 4 wire duct smoke detector system equipped without a control panel D100 68 00 AVAILABLE POWER INPUTS 9 10 A B Cc 120 24V VAC 220 240 VAC ALARM AUXILIARY CONTACTS FOR FAN SHUTDOWN ETC 16 6 17 7 18 8 nel cl No N o Je Kc f CONNECT POWER SOURCE TO APPROPRIATE TERMINALS OF EACH DETECTOR SEE SPECIFICATIONS FOR ADDITIONAL POWER SUPPLY INFORMATION FOR WIRING OF AUXILIARY DEVICES REFER TO MANUFACTURER S INSTALLATION INSTRUCTIONS OR CONTACT MANUFACTURER NOTE THE SUPERVISORY RELAY NOW PROVIDES A FORM C CONTACT FOR CUSTOMIZED APPLICATIONS FOR STANDARD APPLICATIONS ONLY THE NO CONTACT IS USED ALARM AUXILIARY CONTACTS SHOWN IN STANDBY CONTACTS TRANSFER DURING ALARM AS INDICATED BY THE ARROWS SUPERVISORY TROUBLE CONTACTS 3 14 TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS REMOVED OR WHEN TAMPER FEATURE TIMES OUT OPEN CONTACTS SIGNAL TROUBLE CONDITION TO PANEL ALARM CONTACTS SHOWN INITIATION OPEN IN STANDBY CONTACTS CONTACTS CLOSE IN ALARM a eee LAST DETECTOR IN THE LOOP P ETOR DH100ACDC PANEL MANUFACTURER A78 2352 03 Figure 9 Wiring diagram for DH100ACDC to RTS451KEY and interconnect feature DH100ACDC RTS451KEY Alarm Signal 5H Red LED Alarm
12. ng through the duct so that 1 to 2 of the tube extend out side the duct Plug this end with the end plug and tape closed any holes in the protruding section of the tube Be sure to seal the duct where the tube protrudes Figure 4 Air duct detector inlet sampling tube AIR HOLES INLET TUBE END PLUG FLANGE J ARROWS AIR FLOW DIRECTION MUST FACE INTO AIR FLOW A78 2047 00 Figure 5 Tube mounting configurations with varying air flow direction DOTS INDICATE POSITION OF SAMPLING TUBE HOLES AIR FLOW AIRFLOW DIRECTION DIRECTION DUCT DETECTOR HOUSING DUCT DETECTOR HOUSING INLET EXHAUST EXHAUST INLET TUBE TUBE TUBE TUBE AIR FLOW EXHAUST INLET AROW TUBE TUBE 0 DUCT DETECTOR HOUSING DUCT DETECTOR HOUSING AIR FLOW EXHAUST INLET DIRECTION TUBE TUBE NOTE Orientations C and D apply only to metal sampling tubes AWARNING In no case should more than 2 air inlet holes be cut off the tube There must be a minimum of 10 holes in the tube ex posed to the air stream 5 4 2 Installation For Ducts More Than 8 Feet Wide NOTE To install inlet tubes in ducts more than 8 feet wide 156 1147 07 work must be performed inside the air duct Sampling of air in ducts wider than 8 feet is accomplished by using the ST 10 inlet sampling tube If the tube is shorter than the width of the air duct install the end
13. ng configurations with respect to air flow Mounting the detector housing in a vertical orienta tion is acceptable provided that the air flows directly into the sampling tube holes as indicated in Figure 4 Table 1 Inlet tubes required for different duct widths Outside Duct Width Inlet Tube Required 1 to 2 ft ST 1 5 2 to 4 ft ST 3 4 to 8 ft ST 5 8 to 12 ft ST 10 5 4 1 Installation For Ducts Greater Than 11 2 Feet But Less Than 8 Feet Wide 1 If the tube is longer than the width of the air duct drill a 3 4 hole in the duct opposite the hole already cut for the inlet tube Make sure the hole is 1 to 2 below the inlet hole on the opposite side of the duct to allow moisture drainage away from the detector If the tube is shorter than the width of the air duct install the end plug into the inlet tube as shown in Figure 4 Sampling tubes over 3 ft long D100 68 00 must be supported at the end opposite the duct detector 2 Slide the tube into the housing bushing that meets the air flow first Position the tube so that the arrows point into the air flow 3 Secure the tube flange to the housing bushing with two 6 self tapping screws 4 For tubes longer than the width of the air duct the tube should extend out of the opposite side of the duct If there are more than 2 holes in the section of the tube ex tending out of the duct select a different length using Table 1 Otherwise trim the end of the tube protrudi
14. nsparent housing cover The LED should flash approximately every 10 seconds Trouble If the detector LED does not flash then the detector lacks power check wiring panel or power supply the detector board is missing replace or the unit is defective return for repair Test The trouble condition can be caused inten tionally to verify correct operation of the sys tem Remove the detector board to cause a trouble condition locally and at the system control panel Cover Tamper If the cover is removed for a period longer than 20 minutes a trouble signal is generated to indicate the cover is missing 6 2 2 Alarm Tests 6 2 2 1 MO2 04 00 Magnet Test 1 Place the painted surface of the magnet onto the TEST locator on the bottom of the housing Figure 11 2 The red alarm LED on the detector should latch on as should any accessories i e RA400Z RTS451 Verify system control panel alarm status and control panel ex ecution of all intended auxiliary functions i e fan shut down damper control etc 3 The detector must be reset by system control panel front cover reset button or remote accessory 156 1147 07
15. paper backing from the mounting template supplied Affix the template to the duct at the desired mounting location Make sure the template lies flat and D100 68 00 DETECTOR HOUSING Tube installation Chart Supplemental Duct Tube Holes Width 127 14 14 1 6 1 6 1 8 smooth on the duct Center punch holes A and B Drill the holes as indicated on the template Insert the two jack nut receptacles Drive a 10 machine screw into jacket to flare the retainer then back out the screw to use for detector mounting 5 2 1 Sampling Tube Installation for Ducts Less Than 11 2 Feet Wide see Figure 2 1 Remove the front cover 2 Use the tube installation chart above to determine the set screw setting 3 Slide the sampling tube into the housing bushing 4 Align the holes in the bushing with the holes in the sampling tube Make sure the number of exposed holes on the supplemental tube matches the number as deter mined in step 2 Secure with the 8 self tapping screw into the bottom of the permanent tube NOTE For ducts greater than 1 2 feet in width refer to sections 5 4 1 and 5 4 2 Figure 2 Sampling tube connected to duct smoke detector 5 3 Secure The Detector Housing To The Duct Slide the foam gaskets over the tube bushings as shown in Figure 3 Use the two machine screws to screw the detector 2 156 1147 07 Figure 10 Wiring diagrams for optional accessories see page 6 for APA451 wiring
16. plug into the inlet tube as shown in Figure 4 and sup port the end opposite the duct smoke detector Install the inlet tube as follows 1 Drill a 3 s inch hole in the duct directly opposite the hole already drilled for the inlet tube Make sure the hole is 1 to 2 below the inlet hole on the opposite side of the duct to allow for moisture drainage 2 Slide the inlet tube with the flange into the housing bushing that meets the air flow first Position the tube so that the arrows point into the air flow Secure the tube flange to the housing bushing with two 6 self tapping screws 3 From inside the duct couple the other sections of the in let tube to the section already installed using the 2 inch conduit fittings supplied Make sure that the holes on both of the air inlet tubes are lined up and facing into the air flow 4 Trim the end of the tube protruding through the duct so that 1 to 2 of the tube extend outside the duct Plug this end with the end plug and tape closed any holes in the protruding section of the tube Be sure to seal the duct when the tube protrudes NOTE An alternate method to using the ST 10 is to use two ST 5 inlet tubes Remove the flange from one of the tubes and install as described above After the installation use electrical tape to close off some of the sampling holes so that there are a total of 10 to 12 holes spaced as evenly as possible across the width of the duct NOTE Air currents inside
17. s may prevent the detector from activating when smoke is present in the air duct 156 1147 07 3 Figure 1 Exploded View Of Duct Smoke Detector Components CONDUIT HOLES FOAM GASKETS TELESCOPING TUBE TELESCOPING TUBE SELF TAPPING SCREW Y 4 Contents Of The Duct Smoke Detector Kit Complete housing base and cover assembly Two 10 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 sampling tube and optional exhaust tube extension Two jack nuts 9 One inlet tube end plug 10 One telescoping sampling tube 11 One 8 self tapping screw for the telescoping sampling tube NOTE For ducts over 1 2 feet longer inlet 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 See Table 1 on page 3 to determine the inlet tube required for different duct widths PION Seo RS oa 5 Installation Sequence 5 1 Verify Duct Air Flow Direction And Velocity Model DH100ACDC detectors are designed to be used in air handling systems having air velocities of 500 to 4000 feet per minute Be sure to check engineering specifications to ensure that the air velocity in the duct falls within these pa rameters If necessary use a velocity meter to check the air velocity in the duct 5 2 Drill The Mounting Holes Remove the
18. t 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 Ex haust tube intake tube filter P N F36 09 00 5 6 Field Wiring Wiring Installation Guidelines All wiring must be installed in compliance with the Na tional Electrical Code and the local codes having jurisdic tion Proper wire gauges should be used The conductors used to connect smoke detectors to control panels and ac cessory 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 de tectors 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 accom modate wire sizes up to 12 gauge The last foot of conduit should be flexible conduit available in electrical supply houses which facilitates easier installation and puts less strain on the conduit holes in the housing Solid conduit connections may be used if desired 156 1147 07 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 be
19. the duct may cause excessive vibration especially when the longer sampling tubes are used In these cases a 3 inch floor flange available at most plumbing supply stores may be used to fasten the sampling tube to the other side of the duct When using the flange connector mounting technique drill a 1 inch to 1 s inch hole where the flange will be used 5 4 3 Modifications of Inlet Sampling Tubes There may be applications where duct widths are not what is specified for the installation In such cases it is permis sible to modify an inlet sampling tube that is longer than necessary to span the duct width Use a 0 193 inch diameter 11 drill and add the appropriate number of holes so that the total number of holes exposed to the air flow in the duct is 10 to 12 Space the additional holes D100 68 00 as evenly as possible over the length of the tube NOTE This procedure should only be used as a temporary fix It is not intended as a permanent substitute for ordering the correct length tubes 5 5 Install The Filters To install the sampling tube filters simply push the filters into the sampling and exhaust tube holes as shown in Fig ure 6 If a metal sampling tube is used install the filters over the tube ends Figure 6 Sampling tube filter installation A78 2106 01 ACAUTION Filters require periodic cleaning or replacement depending on the amount of dust and dirt accumulated Visually in spect the filters a
20. under normal use and service for a period of three years from date of manufacture System Sensor makes no other express warranty for this air duct smoke detector No agent rep resentative dealer or employee of the Company has the authority to in crease or alter the obligations or limitations of this Warranty The Company s obligation of this Warranty shall be limited to the repair or re placement of any part of the air duct smoke detector which is found to be defective in materials or workmanship under normal use and service dur ing the three year period commencing with the date of manufacture After phoning System Sensor s toll free number 800 SENSOR2 736 7672 for a Return Authorization number send defective units postage prepaid to D100 68 00 System Sensor Repair Department RA 3825 Ohio Avenue St Charles IL 60174 Please include a note describing the malfunction and suspected cause of failure The Company shall not be obligated to repair or replace units which are found to be defective because of damage un reasonable use modifications or alterations occurring after the date of manufacture In no case shall the Company be liable for any consequential or incidental damages for breach of this or any other Warranty expressed or implied whatsoever even if the loss or damage is caused by the Company s negligence or fault Some states do not allow the exclusion or limitation of incidental or consequential damages so the abo
21. ve limitation or exclusion may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state 156 1147 07 INSTALLATION AND MAINTENANCE INSTRUCTIONS Innov DH1OOACDC Air Duct Smoke Detector Before Installing Please thoroughly read the System Sensor Guide for Proper Use of Smoke Detectors in Duct Applications 156 473 which provides detailed information on detector spacing place ment zoning wiring and special applications Copies of this manual are available from System Sensor NFPA Standards 72 and 90A should also be referenced for detailed information NOTICE This manual should be left with the owner user of this equipment IMPORTANT This detector must be tested and maintained regularly following NFPA 72 requirements The detector should be cleaned at least once a year Table of Contents Page 1 General Description 2 Limitations of Duct Smoke Detectors 3 Exploded View of Duct Smoke Detector Components cS Contents of the Duct Smoke Detector Kit Installation Sequence Duct Smoke Detector Maintenance and Test Procedures Detector Cleaning Procedures 8 Board Replacement 9 Specifications Warranty EA z Th COON NNN NY FF 1 General Description An HVAC system supplies conditioned air to virtually every area of a building Smoke introduced into this air duct sys tem will be distributed to the entire building
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