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■ High Efficiency Axial Fan
Adjustable-pitch fan blades permit maximum utilization
of rated horsepower—allows field adjustments to optimize
tower performance.
■ System 5 Geareducer
The Geareducer option requires no oil changes for five full
years—the lowest maintenance requirements in the industry.
Reduced waste stream and environmental impact.
Independent testing has proven a Marley Geareducer is
up to 4 dBA quieter than the gearboxes used by most other
cooling tower manufacturers.
■ Fan Motor
TEFC 1.15 service factor, horizontal-shaft motor
designed to Marley specifications for cooling tower duty.
Specially insulated for humid cooling tower service.
Mechanically Correct Quiet by Design
■ SofTork Coupling
Absorbs excessive shock loads at start-up—forgives
minor misalignment between the motor and Geareducer.
■ Five-Year Mechanical Warranty
Five-year total mechanical equipment warranty including
mechanical equipment support, plus our exclusive
5-year maintenance-free System 5 Geareducer.
All NC Class cooling towers are designed for low sound
levels using high blade-count, wide-chord fans for maximum
efficiency at low tip speeds. For those extreme, low sound
applications, consider the NC Class low sound “L” models.
To achieve the very lowest possible sound levels while
maintaining efficiency, “L” models are carefully selected
with the best available combination of motor, drive ratio, fan
blade-count and blade profile.
Marley 2400 Geareducer