Installation; 1.Cooling; 2.Cleaning - Powersoft audio M Serie Guía Rápida

Installation

The common installation of the amplifier is in rack cabi-
nets: in order to limit the risk of mechanical damages, the
amplifiers must be fixed to the rack using both frontal and
rear mounting brackets.
Note: instead of connecting the amplifier to the power
grid directly, plug the amplifier's mains connections to a
power distribution panel inside the rack cabinet.
FiG. 1: Mounting brackets and air flow direction.

3 : 1.Cooling

install the amplifier in a well-ventilated location: the ven-
tilation openings must not be impeded by any item such as
newspapers, tablecloths, curtains, etc; keep a distance of
at least 50 cm from the front and rear ventilation openings
of the amplifier.
all powersoft amplifiers implement a forced-air cooling
system to maintain low and constant operating tempera-
tures. Drawn by the internal fans, air enters from the front
panel and is forced over all components, exiting at the back
of the amplifier.
The amplifier's cooling system features "intelligent" var-
iable-speed Dc fans which are controlled by the heatsink
temperature sensing circuits: the fans speed will increase
only when the temperature detected by the sensors rises
over carefully predetermined values. This ensures that fan
noise and internal dust accumulation are kept to a strict
minimum.
Should however the amplifier be subject to an extreme
thermal load, the fan will force a very large volume of air
through the heat sink. in the extremely rare event that the
amplifier should dangerously overheat, sensing circuits
shut down all channels until the amplifier cools down to a
safe operating temperature. Normal operation is resumed
automatically without the need for user intervention.
M Series amplifiers can be stacked one on top of the other
due to the efficient cooling system they are equipped with.
There is however a safety limit to be observed: in case
a rack with closed back panels is used, leave one rack unit
empty every four installed amplifiers to guarantee adequate
air flow.
16 | M Series
1 unit space every
4 amp stacked into
closed rack cabinet
Mounting
Brackets
FiG. 2: How to stack the amplifiers in closed racks.

3 : 2.Cleaning

always use a dry cloth for cleaning the chassis and the
front panel. air filter cleaning should be scheduled according
to the dust levels in the amplifier's operating environment.
in order to clean the vent filters you need to remove the
front cover: never attempt to open any other part of the unit.
By means of a screwdriver phillips pH1, unscrew the two
screws on the left and right of the cover grills on the front
panel (refer to
filters.
You may use compressed air to remove the dust from
filters, or wash it with clean water: in the latter case ensure
that the filters are dry before reassembly.
4 amp stacked
Disconnect the AC main source before
attempting to clean any part of the amplifier
FiG. 3), gently lift the covers and remove the
FiG. 3: Cleaning air filters.
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