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L Series and C Series FIR-Drive Power
Amplifiers
5.3
Mounting
L Series and C Series amplifiers have been designed for installation in a conventional 19-inch
rack case. Attach the power amp with its frontal rack mount ears using four screws and
washers as shown in the illustration.
Additionally securing the amplifier at the rear becomes necessary, if the rack case in which the
power amplifier has been installed will be transported. Failure to do so may result in damage
to the power amplifier as well as to the rack case. Attach the power amp as shown in the
illustration using four case nuts and screws. Brackets for securing the power amplifier are
available as accessories.
Figure 5.3: Mounting powered an amplifier in a rack, front (left) and rear (right) showing optional RMK-15
5.4
Ventilation
As with all Dynacord power amps with fan cooling, the airflow direction is front-to-rear,
obviously because there is more cold air outside of the rack case than inside. The power
amplifier remains cooler and dissipating the developing waste heat in a specific direction gets
easier. In general, setting up or mounting the power amplifier has to be done in a way that
fresh air can enter unhindered at the front and exhausted air can exit at the rear. When
installing the power amp in a case or rack system, attention should be paid to these details to
provide sufficient ventilation. Allow for an air duct of at least 60 mm x 330 mm between the
rear panel of the power amplifier and the inner wall of the cabinet/rack case. Make sure that
the duct reaches up to the cabinets or the rack case's top ventilation louvers. Leave room of at
least 100 mm above the cabinet/rack case for ventilation. Since temperatures inside of the
cabinet/rack case can easily rise up to 40 °C during operation of the power amp, it is
mandatory to bear in mind the maximum allowable ambient temperature for all other
appliances installed in the same cabinet/rack case.
Figure 5.4: Power amplifier ventilation
Bosch Sicherheitssysteme GmbH
Installation manual
Installation | en
15
2017.05 | 01 | F.01U.327.801
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