Bosch D296 Series, Installation Manual

Page 1: ...Long range beam smoke detectors D296 D297 en Installation manual ...

Page 2: ......

Page 3: ...stratification in cold environments 10 3 6 Design for the expected fire load 10 4 Mounting 13 4 1 Sensitivity setting 14 4 2 Quick start installation flowchart 15 5 Wiring 16 5 1 Wiring a single detector 16 5 2 Wiring a remote indicator 17 5 3 Wiring multiple detectors 18 6 Setup 20 6 1 Preliminary alignment 20 6 2 Fine Tune alignment 22 7 Troubleshooting 25 7 1 Transmitter 25 7 2 Receiver Aim Mod...

Page 4: ...t installed and used according to the instructions it might cause harmful interference to radio communications There is no guarantee that interference will not occur in a particular installation If this equipment causes harmful interference to radio or television reception that can be determined by turning the equipment off and on correct the interference by Reorienting or relocating the receiving...

Page 5: ...transmitters and receivers The transmitter projects an infrared IR beam across the protected area to a receiver containing a photosensitive cell that monitors the signal strength of the light beam The D296 D297 detectors work on the principle of obscuring light The detector s photosensitive element in the receiver sees light produced by the transmitter in a normal condition The receiver is calibra...

Page 6: ...grades perhaps due to dust and the environmental compensation circuit compensates for this change The compensation rate is limited ensuring the detector remains sensitive to slow or smoldering fires When the automatic environmental compensation circuit no longer compensates for signal loss as with an excessive accumulation of dirt the detector signals a trouble condition The receiver indicates a t...

Page 7: ...ckage 1 Transmitter 3 Blocking object 2 Beam 4 Receiver The receiver automatically compensates for gradual signal loss from dust and dirt buildup on the cover After a signal loss of 50 the receiver indicates a trouble When built up dust and dirt or a blockage is removed the detector automatically returns to normal operation level The receiver indicates a trouble if the beam strength increases by m...

Page 8: ...here the beam path does not pass near heating and cooling outlets Do not mount where hot or cold air blows directly into the beam path Heating ventilating and air conditioning HVAC systems can blow smoke away from the beam path Smoke must accumulate in the beam path to be detected Do not mount heaters close to the beam path Heat can distort the beam Test for beam distortion by monitoring the signa...

Page 9: ...AWG ISO 0 75 mm2 500 ft 152 m 8 pairs 5 pairs 3 pairs 1000 ft 304 m 4 pairs 2 pairs 1 pair 1500 ft 457 m 2 pairs 1 pair 1 pair 2000 ft 609 m 2 pairs 1 pair 0 2500 ft 762 m 1 pair 1 pair 0 Tab 3 1 Wire Gauge and Length D297 Smoke detector long range beam 12V For the proper number of D297 transmitter and receiver pairs depending on wire size and length see the following table Wire Length Wire Size 1...

Page 10: ...te Bowing occurs because the mounting box screw tabs are below flush with the top edges of the mounting box Over tightening the mounting screws bows the mounting plate inward at the bottom causing the optics to aim low Irregularities in the flatness of the mounting box edge surfaces or at the screw tabs worsens this condition Only use mounting boxes with flat regular surfaces and properly formed s...

Page 11: ...eeded for an alarm and select the sensitivity setting needed according to the following table Total Obscuration at Alarm Sensitivity Switch Setting 20 2 30 0 or 3 40 4 50 5 60 1 or 6 70 7 The D296 and D297 can be set for quick response 5 sec or normal response 30 sec Some burning materials release hazardous gases along with the smoke Set the sensitivity for a shorter response times to minimize exp...

Page 12: ...ts in a trouble signal before an alarm is generated For example fires caused by the ignition of flammable petroleum based liquids generally lead to rapid buildup of heavy smoke When this type of fire is probable use sensitivity settings 0 or 1 for a 5 sec response time For instructions on setting the sensitivity see Sensitivity setting page 14 ...

Page 13: ...cover s four screws indicated in the following figure Figure 4 1 Access Door and Cover 1 Access door 2 Cover mounting screws 4 3 Unscrew the single mounting screw at the top of the circuit board carrier plate and separate the plates See the following figure Figure 4 2 Removing the Back Plate 1 Remove screw to expose back plate 4 Wiring entrance 2 Mounting slots 4 5 Do not remove 3 Back Plate Warni...

Page 14: ...wer setting for a more sensitive detection or select a higher setting for better immunity to false alarms Switch Setting Sensitivity Alarm Response Beam Length 0 30 5 sec 30 ft to 100 ft 9 m to 31 m 1 60 5 sec 100 ft to 350 ft 31 m to 107 m 2 20 30 sec 30 ft to 50 ft 9 m to 15 m 3 30 30 sec 45 ft to 75 ft 14 m to 23 m 4 40 30 sec 70 ft to 100 ft 21 m to 31 m 5 50 30 sec 90 ft to 140 ft 27 m to 43 ...

Page 15: ...Long range beam smoke detectors Mounting en 15 Bosch Security Systems Inc Installation manual 2017 03 7 0 F 01U 068 899 4 2 Quick start installation flowchart Figure 4 4 Installation Flowchart ...

Page 16: ... terminals see the following figure and table Figure 5 1 Wiring a single detector 1 Fire alarm control panel FACP 3 End of line EOL resistor 2 Receiver 4 Transmitter Type Terminal Description Transmitter terminals 1 and 2 Input power terminals for operating voltages see Specifications page 29 Receiver terminals 1 2 and 3 Form C auxiliary relay contacts On fire alarm Terminals 1 and 2 open Terminal...

Page 17: ...detector s condition and status The indicator plate also has test points for measuring the sensitivity voltage Although not required Bosch recommends the D344 RL s installation to check the detector s condition from ground level If using D344 RL install the remote indicator connector to the receiver as indicated in the following figure Figure 5 2 Connecting a D344 RL Remote Indicator Plate 1 D344 ...

Page 18: ...1 D34 RT Remote Test and Indicator Plate 5 3 Wiring multiple detectors For smooth flat ceilings mount the detectors so the spacing is 60 ft 18 3 m between beam paths Ensure that no more than half of this spacing is between the beam path and side wall The side wall is the wall parallel to the beam path Other spacing depends on ceiling height air flow characteristics and response requirements The mi...

Page 19: ...or 2 FACP 5 Minimum spacing 1 10 x distance 3 Transmitter 6 Minimum spacing 1 5 x distance maximum spacing between adjacent systems is 60 ft 16 3 m Notice When two or more adjacent detectors are installed in the same area alternate the transmitter and receiver locations If not alternated ensure the spacing between the detectors is 1 5th the distance from the transmitter to the receiver ...

Page 20: ...tter Begin the process of obtaining a replacement by calling the Bosch National Repair Center at 800 366 2283 or sending an e mail to repair us bosch com 3 Check the three receiver LEDs indicated in the following figure It is normal for all three LEDs to be on at this time The green LED can be either flashing or steadily on If all LEDs are off check for power and proper polarity on Terminals 8 and...

Page 21: ...iming a gun 3 Rotate the transmitter s optical module left or right until you see the reflection in the mirror of aiming light image or receiver s image if the aiming light is not used 4 The optical module is aligned when the front bore sight is in the center of the rear bore sights See the following figure Figure 6 4 Alignment Mirror 1 Rear bore sights 2 2 Front bore sight 5 Adjust the optical mo...

Page 22: ...igure Figure 6 5 D1005 Connection 1 Connector wires a white b red c black Notice If the Remote Indicator Plate connector is installed temporarily disconnect it 2 Connect a 20 000 Ω VDC VOM to the D1005 s black and red leads Set the meter scale so you see the readings ranging from 0 VDC to 5 VDC 3 Check the three receiver LEDs on the receiver If the receiver gets the beam the green LED flashes and ...

Page 23: ... lead towards center of the receiver 9 At this point you can perform an Alarm Test Connect the D1005 s white and black wires Reset the receiver by temporarily removing power 10 Press the receiver s Setup button located below the P6 and test cable connection See the following figure Figure 6 6 Receiver Setup Button 1 LEDs 2 Setup button Notice Only press the Setup button if the covers are on both t...

Page 24: ...eam smoke detectors 2017 03 7 0 F 01U 068 899 Installation manual Bosch Security Systems Inc 12 After setup remove the test cable 13 Reconnect the remote indicator plate connector if used 14 Replace and secure the access door ...

Page 25: ...ocked or the receiver is misaligned Clear the beam path or realign the receiver On Flashing Flashing Open Open The sensitivity setting is invalid Set the receiver to the proper setting On Off Off Open Open There is no power Check for power at Terminals 8 and 9 7 3 Receiver Normal Mode cover on Red LED Yellow LED Green LED Terminals 4 and 5 Terminals 6 and 7 Condition Solution Off Off On Open Close...

Page 26: ... receiver and press the Setup switch Off On Flashing Open Open If the reference voltage is greater than 4 2 VDC the beam strength increased because an initial beam misaligned or a partial blockage was removed at setup Perform a fine tune alignment of the receiver and use the Setup button On Off Flashing Closed Closed Alarm Determine the cause of the alarm and reset the receiver On Off Flashing Clo...

Page 27: ...e a reset of the reference voltage The reset can take 1 min to 2 min 8 3 Cleaning Clean the outside of the covers a minimum of once each year Use a common window cleaner and a soft clean cloth Under normal conditions there is no trouble alarm if the beam is not continuously blocked for longer than 18 sec After cleaning recheck the reference voltage If voltage is less than 3 8 VDC or greater than 4...

Page 28: ...detectors activates a fire alarm Inform all concerned personnel before performing a test The detectors automatically compensate for the effects of dust and dirt accumulation on their covers They also compensate for component aging Notice NFPA 72 requires the detector sensitivity be measured in the field within one year after initial installation and every alternate year thereafter Use the Sensitiv...

Page 29: ...s Normally Closed N C contacts rated 1 A 60 VDC maximum for DC resistive loads do not use with capacitive or inductive loads Environmental Environment Indoor dry Relative humidity 0 to 95 non condensing Temperature storage and operating 22 F to 130 F 30 C to 54 C For UL Listed installations the range is 32 F to 130 F 0 C to 54 C Mechanical Dimensions 7 in x 5 5 in x 5 5 in 17 8 cm x 14 cm x 14 cm ...

Page 30: ... F 01U 068 899 Installation manual Bosch Security Systems Inc Transmission range 30 ft 9 m to 350 ft 107 m Tamper Receiver Access door tamper switch in series with trouble contacts Transmitter When the cover is removed the cover tamper switch interrupts transmission ...

Page 31: ......

Page 32: ... 068 899 Bosch Security Systems Inc 130 Perinton Parkway Fairport NY 14450 USA www boschsecurity com Bosch Security Systems Inc 2017 Bosch Sicherheitssysteme GmbH Robert Bosch Ring 5 85630 Grasbrunn Germany ...