SPX Cooling Technologies MS User Manual

Marley MS Cooling Tower

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SPX COOLING
TECHNOLOGIES

SPX Cooling Technologies has
worldwide recognition as the

pacesetter in the eld of water

cooling technology. Unique

within its industry in the scope of
products and services offered,we
design and manufacture cooling
towers of virtually any capacity
and conguration. More than
400 Marley tower models are

available to service the application

requirements of air conditioning,

industrial processing and electric

generation. More simply stated,
there’s a Marley cooling tower for

almost any conceivable water

cooling need — from as little as

15 gallons per minute to more

than 300,000 gallons per minute.

COMPONENTS

FILL: Marley MC high

performance PVC lm ll sheets
are thermoformed at the Marley
factory to exacting quality and
strength standards. Maximum
performance and clog resistant
designs are both available for
a wide range of thermal and

water quality requirements.

ELIMINATORS: Marley XCEL

®

drift eliminator panels—formed
from PVC sheets into a cellular
conguration—offer the lowest
drift rates in the industry.
They signicantly lower air
pressure losses, reducing fan

horsepower requirements.

GEAREDUCERS: Marley

Geareducer

®

drives are the

industry quality standard. They

are designed to meet or exceed
the requirements of CTI STD-111
and AGMA Std, 420.4, and are run-

in under load prior to shipment.
Numerous reduction ratios are
available so that horsepower is

applied at optimum fan speed.

FANS: Designed, tested and
manufactured by Marley, fan

materials include cast aluminum

alloy, glass reinforced polyester
and glass reinforced epoxy. Fan

sizes and materials are selected
to be compatible with individual
application requirements.

DRIVESHAFTS: Rugged Marley
manufactured driveshafts are
built from stainless steel or carbon
ber composite tubes with
stainless steel anges. All Marley
driveshafts are dynamically
balanced at the factory to

minimize operating vibrations.

MECHANICAL EQUIPMENT
SUPPORT: The Marley hot-

dipped galvanized torque
tube unitized support assures

permanent alignment of the motor,
driveshaft and Geareducer.

FAN CYLINDERS: Marley FRP
fan cylinders feature venturi

shaped eased inlets and close

fan tip clearance for maximum
efciency. If required, a concrete
fan cylinder may be utilized.

DISTRIBUTION SYSTEM: Marley­patented non-clogging, large

diameter NS spray nozzles assure

an unimpeded, uniform ow
with min-imal operating pump
head. Plus, they free you from
the expense and nuisance of

cleaning clogged nozzles.

STRUCTURE: Normal structure

consists of 8" thick concrete
exterior walls and interior cell
partitions. Cast-in-place fan decks
are normally 6" slabs. A furnished
torque tube spans the full fan deck
opening for mechanical equipment
support, thereby avoiding

concrete beam obstructions.

SPECIFICATIONS

COOLING TOWER: Furnish and install (1) Induced

Draft Counterflow Cooling Tower. Cooling tower
shall be______ft. long x ______ft. wide x ______ ft.
overall height with a maximum operating weight
of______lbs. Cooling tower shall consist of_____fan
cells with a maximum of_____total fan horsepower
and a maximum pump head of______ft.

Other contractor(s) will furnish all external piping,
valves, pumps, electrical equipment other than
cooling tower fan motors, wiring, controls, etc. all in

accordance with general overall dimensions to be

supplied by cooling tower manufacturer. All internal
components of cooling tower as described following
will be furnished and installed by the cooling tower
manufacturer.

CAPACITY: Cooling tower shall be selected and

gua rante ed to cool__ _ ___GP M of wate r from
______°F to ______°F at ______°F entering wet bulb

temperature.

MECHANICAL EQUIPMENT: Mechanical equipment
shall be designed specically for cooling tower usage

and shall be mounted on a rigid unitized HDG steel
support to assure permanent drivetrain alignment.

Cooling tower manufacturer shall be responsible for

equipment warranty.

FANS: Fans shall be of a multi-blade propeller
type and blades shall be constructed of solid glass
reinforced polyester, cast aluminum alloy or hollow
glass reinforced epoxy. Hubs shall be HDG steel cast

iron or aluminum plate. Blades shall be individually

adjustable for required pitch angles.

DRIVESHAFTS: Driveshaft tubes and anges shall be
manufactured of type 304 stainless steel. Couplings
shall be hot dip galvanized cast iron, joined to
the driveshaft by exible neoprene bushings and

cadmium plated steel inserts. Connecting hardware

shall be 300 stainless steel. Driveshaft assemblies shall
be dynamically balanced at the factory at full motor

speed.

SPEED REDUCERS: Speed reducers shall be provided

for right angle fan drive and shall be designed to
AGMA standards for continuous duty opera tion,
capable of reverse operation. Oil ll and drain lines
are to be extended outside the fan cylinder to an oil

level sight glass.

ELECTRIC MOTORS: Electric motors shall be_______
speed, single winding, variable torque, _____ hp
maximum, TEFC, and specially insulated for cooling

tower duty. Speed and electrical characteristics shall

be _____ RPM, _____ phase, _____ hertz, _____ volts.
If the load applied to the motor exceeds 90% of the
nameplate rating, then the motor shall have a 1.15
service factor and the service factor beyond 1.0 shall
not be considered available for load.

FILL: Heat transfer ll media shall be crosscorrugated
20 mil PVC sheets supported by stainless steel tubes
which, in turn, are suspended by stainless steel tension
hangers from concrete support beam members.

DRIFT ELIMINATORS: Drift elimina tors shall be
supplied in a 3 pass cellular arrangement of bonded
17 mil PVC sheets. Drift loss shall not exceed ______%
of circulating water.

HOT WATER DISTRIBUTION SYSTEM: Hot water
distribution system in each cell shall be supplied with

a single interior inlet terminating 1'-0 below bottom of
the tower lling. Materials will be of inert PVC and RTR

and polypropylene piping supported by the support

beams utilized to carry heat transfer ll media.

FAN CYLINDERS: Fan cylinders shall have eased inlet
design and be of molded ber reinforced polyester
with a minimum height of 6' 0.

OPTlONS: Factory Mutual Approval. The tower
shall include all design and material modications
necessary to meet the re rating requirements of
Factory Mutual. The product proposed shall be listed
in the FM Approval Guide, latest edition.

Masonry structure options at owner’s election:
1-Shell structure design shall be by cooling tower

manufacturer.
2-Shell structure and cold water basin design shall be

by cooling tower manufacturer.
3-Shell structure and cold water basin design shall

be by cooling tower manufacturer. Shell structure

construction including materials and labor shall be

by cooling tower manufacturer.
4-Shell structure and cold water basin design shall be

by cooling tower manufacturer. Shell structure and

cold water basin construction including materials and

labor shall be by cooling tower manufacturer.

WARRANTY: Warranty on all components against

de fective ma t eri als and workmans hip will be
extended for a period of one (1) year following initial
operation but not exceeding eighteen (18) months
from date of shipment. Components that may fail

within warranty period shall be repaired and/or

replaced including freight and installation labor.

Thermal testin g of cooling tower will be done
within one (1) year following structural completion
in accordance with Cooling Technolog y Institute
Acceptance Test Code CTI ATC 105. In the event test
results indicate deciency, manufacturer shall make
alterations to overcome indicated deciency and if
such alterations are inadequate manufacturer shall
refund a percentage of contract price proportional to
tower deciency.

7401 WEST 129 STREET
OVERLAND PARK, KANSAS 66213
UNITED STATES
913 664 7400
[e-mail]

spxcooling.com

In the interest of technological progress,
all products are subject to design and/or
material change without notice.
©2008 SPX Cooling Technologies, Inc.
Printed in USA | MS-06