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AV Air Movement System
n Streamlined eased inlet fan cylinder
assures full area, low turbulence airflow
through the cylinder.
n Heavy duty aluminum alloy fan–
adjustable pitch blades.
n 7.5 hp and larger fans are driven by a
high quality, solid backed, multi-grooved
neoprene and polyester v-belt thru a
corrosion resistant aluminum alloy fan
sheave.
n Heavy duty, self-aligning, grease
lubricated roller bearings selected with
an L
10
design life of 50,000 to 100,000
hours support the fan and shaft.
n TEFC fan motor, 1.15 service factor,
variable torque design, specially insulated
for cooling tower duty.
n The AV air movement system is
guaranteed against failure for a period
of five full years from date of shipment.
Includes fan, fan shaft, bearings and
mechanical equipment support.
Note: For economical transportation, AV towers are also
available unassembled and crated for export.
For Safety Reasons —always shut down and lock out the
fan motor before entering the plenum.
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Features
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AV Water Distribution System
n Gravity flow distribution system. Easy, nonrestrictive
maintenance. Basin covers are standard.
n Marley Spiral Target polypropylene nozzles for
consistent, predictable water distribution.
n Marley MX thermoformed PVC film fill is suspended
from the upper tower structure by heavy galvanized
steel support members providing clearance between fill
and sloping self-cleaning collection basin floor for easy
basin cleaning. Integral eliminators and louvers keep
circulating water confined to fill over a wide range of air
flow rates.
AV Structure
n Crossflow configuration — easier and safer to inspect,
service and maintain.
n G-235 heavy galvanized steel. Also available in 300
stainless steel.
n Factory-assembled modules, including fan cylinders
— makes final field installation hassle-free.
n Large Access Doors—the generous plenum region in
the AV tower is nonconfining, permitting quick visual
inspection of cold water basin, internal structure, drift
eliminators and mechanical equipment.