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4.2.2 Temperature
The blower / motor assembly must be placed in an area that prevents hard freezes
or overheating. Ambient temperature conditions should range from a low of
+10°F (-12°C) to +110°F (43°C). The blower / motor assembly is suitable for
outdoor locations, but care should be taken to protect the equipment from
temperature extremes, direct exposure to the sun, rain, snow, and dust so as to
extend the service life of the blower, motor, and filter.
The blower / motor assembly, while running, can increase the ambient
temperature above 110°F (43°C). Always check the running ambient temperature
and do not operate above 110° (43°C).
4.2.3 Moisture and Debris
Sonic air blowers have a high-speed belt drive, close tolerance components and
precision bearings. Do not put the blower where it will be sprayed from a
washing / rinsing zone, from over-spray from an air knife or where dust, dirt, or
other debris will attack the drive belt or clog the filter. If the filter needs cleaning
or replacing more than one time each month, the blower or filter should be moved
to a cleaner, dryer area. A Sonic acoustical blower enclosure will also ensure safe
operation.
4.2.4 Wash Down
In factory locations subject to high-pressure water or caustic wash down cycles,
the blower / motor unit must be protected or relocated to prevent damage. Raising
the blower 1-2 feet (0.3 to 0.6 meters) above the wash zone is recommended.
Wash down duty motors and corrosive resistant blower coatings are available to
allow full exposure should it be needed.
4.2.5 Explosive Environments
The Sonic 150 centrifugal blower is made from non-sparking aluminum and
therefore is suitable for explosive gases and explosive environments. Special
explosion proof motors can also be included for hazardous duty.
4.2.6 Corrosive Environments
The Sonic 150 blower can be protected with special coatings for protection in
corrosive environments. Protection level and life of blower is dependent on the
type of chemical and the concentration level.
4.2.7 Vibration
Due to the low vibration level of the Sonic air blowers, they can be bolted to any
type of foundation or framework without transmitting any significant vibration.
Sonic provides four rubber isolation mounts on most assemblies to prevent other
equipment vibration from damaging the blower bearings.
4.2.8 Water Cooling Circuit
If the inlet air / gas is piped directly to the blower inlet, and the temperature is
over 125°F (52°C), a water-cooled blower head must be used to protect the shaft
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