System Sensor DH400 Installation And Maintenance Instructions Manual Download Page 14 | Manualshive

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I56-554-05

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Summary of Contents for DH400

Page 1: ... Fig 12 Photo Head Exploded View 11 Fig 13 Ion Head Exploded View 11 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 Smoke detec tors designed for use in air duct systems are used to sense the presence of smoke in the duct Model DH400 Air Duct Smoke Detectors a...

Page 2: ...building s regular fire detection system System Sensor supports this position and strongly recom mends that the user read NFPA Standards 90A 72 and 101 The DH400 Air Duct Smoke Detectors are listed per UL 268A WARNING This device will not operate without electrical power Frequently fire situations may cause an interruption of power The system safeguards should be discussed with your local fire pro...

Page 3: ...045 00 Figure 3 Speed nut mounting location HOLE B HOLE A DUCT WALL SPEED NUT A78 2046 00 5 4 Install The Inlet The inlet tube shown in Figure 4 is identified by a series of air inlet holes on the tube This tube must be purchased separately 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 ...

Page 4: ...IR HOLES ARROWS MUST FACE INTO AIR FLOW AIR FLOW DIRECTION FLANGE Figure 4 Air duct detector inlet sampling tube A78 2047 00 Figure 5 Tube mounting configurations with varying air flow direction A78 1812 01 AIR FLOW DIRECTION DUCT DETECTOR HOUSING DOTS INDICATE POSITION OF SAMPLING TUBE HOLES AIR FLOW DIRECTION DUCT DETECTOR HOUSING INLET TUBE EXHAUST TUBE AIR FLOW DIRECTION INLET TUBE EXHAUST TUB...

Page 5: ... that the total number of holes ex posed to the air flow in the duct is 10 to 12 Space the additional holes as evenly as possible over the length of the tube 5 5 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 dete...

Page 6: ...0Z OPTIONAL REMOTE ALARM LED 5 mA MAX 2 8 VDC NOM IN ALARM E O L R STYLE D OPTIONAL WIRING UL LISTED COMPATIBLE 2 WIRE CONTROL PANEL ALARM INITIATION LOOP EOL RESISTOR SPECIFIED BY PANEL MANUFACTURER CAUTION Do not loop wire under terminals when wiring detectors Break wire runs to provide system supervision of connections A78 2350 00 Figure 6 System wiring diagram for 2 wire duct detectors detecto...

Page 7: ...ET TEST SWITCH ALARM LED RED 1 2 4 5 3 4 6 7 8 2 8 VDC IN ALARM 24 VDC AUX POWER SUPPLIED BY USER 100mA SUPPLY MAGNET TEST SWITCH ALARM LED RED 1 2 4 5 3 4 6 7 2 8 VDC IN ALARM 24 VAC 10 15 FULL WAVE RECTIFIED UNFILTERED POWER MAY BE USED RTS451 RTS451KEY OPTIONAL REMOTE TEST STATION DH400 DUCT DETECTOR METHOD 2 AUX POWER LOCATED AT TEST STATION Figure 7 Wiring diagram for RTS451 RTS451KEY Remote ...

Page 8: ...ews that are fixed in the housing cover Be certain filters are installed as specified in Section 5 6 Make sure that the cover fits into the base groove and that all gaskets are in their proper positions Tighten the four cover screws to 10 in lbs 6 Duct Detector Maintenance And Test Procedures Test and maintain duct detectors as recommended in NFPA 72 The tests contained in this manual were devised...

Page 9: ... M02 04 00 Magnet Test 1 Place the painted surface of the magnet into the TEST locator molded into the side of the housing Figure 9 2 The red alarm LEDs on the detector should latch on as Figure 9 Testing detector alarm Figure 10 Detector head removal TEST LOCATOR TEST MAGNET PAINTED SIDE TOWARD HOUSING DUCT HOUSING DETECTOR HEAD TWIST COUNTERCLOCKWISE TO REMOVE DUCT HOUSING TWIST CLOCKWISE TO INS...

Page 10: ...wise until it stops The LEDs should latch on within 20 seconds Remove card and reset detector at system control panel DETECTOR HEAD TEST COIL Figure 11 RTS451 RTS451KEY test coil installation A78 1994 02 7 Put the cover back by gently rotating it clockwise until it locks in place Secure the duct housing cover using the 4 cover screws 7 Detector Cleaning Procedures Notify the proper authorities tha...

Page 11: ...m pressed air to loosen and blow out any remaining debris 6 Press screen back into cover 7 Replace detector cover onto sensing chamber Turn clockwise to lock into place 7 4 Reinstallation 1 Reinstall detector in housing 2 Restore system power 3 Perform Detector Check Section 5 7 of this manual 4 Notify the proper authorities that testing has been com pleted and the smoke detector system is operati...

Page 12: ...ws will withstand 10 in lbs of tightening torque without damage Accessories M02 04 00 Replacement Test Magnet RA400Z Remote Annunciator alarm LED RTS451 RTS451KEY Remote Test Station test switch with alarm and power LEDs CRT400 Cover Removal Tool Ion only F36 05 00 Replacement Air Filter two per package MOD400R Sensitivity Test Module P48 21 00 Replacement End Plug for inlet sampling tube R59 18 0...

Page 13: ... 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 System Sensor Repa...

Page 14: ...NOTES D400 14 00 14 I56 554 05 ...

Page 15: ...D400 14 00 15 I56 554 05 NOTES ...

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