Instruction/ maintenance manual of the product DS241 Bosch Power Tools
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Installation Instructions DS240 and DS241 Long Range Beam Smoke Detectors 1.0 Description The DS240 and DS241 are long range projected beam type smoke detectors which consist of a separate transmitter and receiver . Internal pointability provides coverage flexibility without the need for brackets.
Page 2 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 4. 0 Installation Considerations The proper location and spacing of detectors is critical in a properly installed and operating fire alarm system.
DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 3 4. 4 Provide a stable mounting surface Beam smoke detectors depend on the measurement of the projected beam to sense smoke. Therefore, shifts in the alignment of the beam due to movement of the transmitter/receiver can cause trouble or alarm conditions.
Page 4 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 6.0 WIRING Only apply power after all connections have been made and inspected. • Wire the transmitter and receiver terminals as follows (see Figure 6 ). NOTE: Do not install on verified fire circuits.
DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 5 - If the LED is off, check for the presence of power and proper polarity on T erminals 1 (–) & 2 (+). - A steady green LED indicates a faulty transmitter , and the unit should be returned to the factory .
Page 6 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 7.3 Fine T une Alignment • Connect the supplied TC2000 T est Cable to Pins 1, 2 and 3 of P6, the group of pins located just to the right of the receiver’s terminal strip (see Figure 14 ).
DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 7 T o check the reference voltage, remove the receiver's access door and measure the reference voltage, using the supplied test cable, or measure the voltage at the DIS240 Remote Indicator Plate (if used).
Page 8 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions The Sensitivity T est Kit (supplied) may be used to check the sensitivity of the detectors during installation only . For field testing, the TK240 must be used. Each filter decreases the detector’s signal by a defined amount.
DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 9 9.0 T roubleshooting.
Page 10 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 10.0 Installing Multiple Units.
DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 11 11.0 Quick Start Installation Flow Chart.
© 2004 Bosch 22066P 7/04 130 P er inton P ar kwa y , F air por t, NY 14450-9199 USA Installation Instructions D S240/DS241 Long Range Beam Smoke Detectors Customer Ser vice: (800) 289-0096; T echnica.
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If you already are a holder of Bosch Power Tools DS241, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bosch Power Tools DS241.
However, one of the most important roles played by the user manual is to help in solving problems with Bosch Power Tools DS241. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bosch Power Tools DS241 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center