SPX Cooling Technologies Cooling Tower Marley NC Class User Manual
Q u i e t B y D e s i g n
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Marley NC® Class Cooling Tower
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Four-cell NC Class cooling tower
serving a municipal power plant.
T h e R e s u l t o f S o u n d E n g i n e e r i n g
The NC Class not only sets the benchmark for low
sound levels it also sets the benchmark for some of
the highest crossflow tonnage densities per box in the
industry. For over 50 years NC cooling towers have
delivered thermal performance, low maintenance,
versatility of options and outstanding value. But, of even
greater significance, the NC Class is now quieter.
The redevelopment, redesign, the “evolution” of the NC
cooling tower into the NC Class was the first project at
SPX Cooling Technologies to fully utilize and employ our
new ISO 9001 Certified “Product Development Process.”
■ Long Life Construction
Available in series 300 stainless steel or rugged heavy mill
galvanized steel. Marley ISO certifi ed plants assure quality
factory-assembly. Plus, the NC Class stainless steel tower
comes with SPX Cooling Technologies’ exclusive 5-year
limited warranty.
■ Low Operating Costs
Marley's high-effi ciency fi ll and fans, gravity-fl ow water
distribution, and effi cient mechanical drive systems work
together to offer maximum cooling with minimum power use.
■ All Season Performance
Performs as specifi ed in the heat of summer—responds
well to energy-management techniques in the spring and
fall—operates virtually ice-free in the dead of winter—and
offers simple maintenance all year long.
■ Real World Design
Designed for severe wind, seismic,
shipping, operating and live loads.
■ CTI Certifi ed
Plus, we guarantee the
thermal performance of each
tower as installed.
■ Factory Mutual Approved
FM approval is available on the
entire line of NC Class cooling
towers. Currently 94 NC Class tower
models are FM approved without
any additional cost.
P r o v e n D e s i g n G u a r a n t e e d P e r f o r m a n c e
W
1067 **
L
H
TOWER MODELS TONS L W H
NC8301 94-180 1956 4267 3099
NC8302 118-242 2413 4725 3099
NC8303 154-297 2413 4725 3632
NC8304 217-372 2718 5182 3962
NC8305 281-520 3327 5715 3962
NC8306 350-582 3632 6045 3962
NC8307 343-651 3632 6833 4064
NC8309 481-750 4242 6833 4064**
NC8310* 567-915 3327 6833 6045**
NC8311* 503-1000 3632 6833 6045**
NC8312* 626-1274 4242 6833 6045**
*Two-story modular cells
**Some models in this box size require a taller fan cylinder
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