d&b audiotechnik 40D, Reference Manual

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Startup
5.1 Rack mounting and cooling
Rack mounting
The enclosure is designed to fit standard 19" equipment racks or
cabinets.
NOTICE!
When mounting the device into 19" equipment racks or cabinets, it
is strongly recommended that you:
▪
Always fix the device at its front AND rear-mounted
rack ears using appropriate rack mounting screws and
U washers, as shown in the graphic opposite.
▪ Alternatively use shelves fixed to the inner sides of the
equipment rack or cabinet.
Cooling
Thermal conditions are a vital factor to ensure operational safety of
the power amplifiers. The amplifiers are equipped with two internal
fans that draw cool air from the front into the housing and channel
the warm air towards the back of the device.
▪ Please ensure that adequate cool airflow is provided.
▪ Do not block or cover the front panel air intake or the vents on
the rear panel.
▪ If the amplifiers are installed in sealed cabinets (e.g. in fixed
installations), use additional fan modules with filters that can be
easily replaced without opening the sealed cabinets.
▪ Do not combine the amplifiers with D6 or D12 amplifiers in one
rack.
▪ Do not rack up the amplifiers together with other devices
producing additional heat with opposing airflow.
5 Startup
d&b 40D Reference manual 1.3 en 13