installation 2
cooling and ventilation
CD amplifiers use a forced air cooling system to maintain a low, even operating tem- perature.
Air is drawn in by a DC fan on the rear panel, flows through the cooling fins and then exhausts through the front panel vent.
Heat sink temperature is monitored and controls the variable speed fan. Fan speed increases only as required, keeping fan noise to a minimum.
a
Make certain that there is enough space around the front and rear of the amplifier to allow the heated air to escape. When mounting in a rack, try to avoid using doors or covers on the front and rear of the enclosure; the exhaust air must not be impeded
Keep this unit 8” from any combustible surface on all sides.
If the heat sink surpasses its maximum allowed temperature, the thermal protection circuit will activate and open the output relays allowing the amplifier to cool to a safe temperature. Normal operation will resume once the amplifier cools to a safe level.
Thermal protect activation only occurs under extreme thermal conditions and is not part of normal operation.
suggestion
In racks with closed backs allow at least one stan-
powering
Unless otherwise specified when ordered, CD amplifiers are supplied factory set to following voltage options :
Option 1
Option 2
US domestic
export models
nominal 120Vac 60Hz for rated power output (safe operating range 100 - 132Vac )
nominal 230Vac 50Hz for rated power output
(safe operating range 200 - 253Vac )
maintenance
On some CD amplifier models the fan is supplied with a removable foam filter.This fil- ter should be cleaned periodically with compressed air.
If the amplifier is used in an extremely dusty or smoky environment , the unit should be periodically blown free ( using compressed air ) of any foreign matter that may have built up inside the unit.
Users will not need to make any adjustments to the amplifier during its lifetime.There are no
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