Installation; 1.Location; 2.Cooling; 3.Cleaning - Powersoft audio Ottocanali Série Guide Rapide

Installation

3 : 1.Location

Ottocanali Series amplifiers are meant to be installed into
rack. In order to limit the risk of mechanical damages, the
amplifiers must be fixed to the rack using both frontal and
rear mounting brackets. We recommends to use eight M6 or
12-24 UNC-2B screws for threaded holes or cage nuts.
The AC mains connection of the units should be con-
nected to a proper circuit breaker (refer to
supply for more details).
Install this amplifier as far as possible from radio tun-
ers and TV sets. An amplifier installed in close proximity of
such equipment may experience noise or generic perform-
ance degradation. Placing and using the amplifier for long
periods of time on heat generating sources will affect its
performance. Avoid placing the amplifier on heat generating
sources.

3 : 2.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.
Ottocanali 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 (see Panel N, p. 14).
18 | Ottocanali Series

3 : 3.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.
§3 : 4.AC mains
In order to clean the vent filters you need to remove the
front cover: never attempt to open any other part of the unit.
1. Firmly grip the outermost silver colored panel and pull
outwards at an angle, as if opening a door
B, p.
2. Carefully slide the metal panel away from the chassis.
When the front panel is removed, the air filter (looking
like a shiny black plastic sponge) will be exposed.
You may use compressed air to remove the dust from
filters, or wash it with clean water: in the latter case ensure
that the filter is dry before reassembly.

3 : 4.AC mains supply

Ottocanali Series amplifiers implement two universal
redundant switching mode power supplies operating in the
range from 100 V
AC mains connection is in the rear panel through the
IEC C20 inlet with power switch: the approved power cord
is provided (see
according to local electrical authorities guidelines.
networks compliant to the IEC 364 or similar rules.
Disconnect the AC mains source before
attempting to clean any part of the amplifier
7).
up to 240 V ±10%.
AC AC
FIG. 1).
FIG. 1: AC mains connection.
AC mains connections must be performed
only by professional or qualified personnel
This device must be powered exclusively by
earth connected mains sockets in electrical
Powersoft suggests to plug
the Ottocanali to a 32 A rating,
C or D curve, 10 kA sectioning breaker.
3
(see Panel