Features – SPX Cooling Technologies MarleyAV Series User Manual
Page 3
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.
/
Features
/
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.