SPX Cooling Technologies 160 ユーザーズマニュアル

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Marley high-performance film fill is the heart of every Class 

160 tower. A repeating chevron pattern provides the wetted 
surface and air turbulence necessary for proper heat transfer, 
while minimizing resistance to airflow so you’ll save on fan 
power. Molded protrusions on each fill sheet assure uniform 
spacing.

Fill sheets are vacuum formed 15 mil (.015

″) thick 

PVC (polyvinyl chloride) capable of service at hot water 
temperatures up to 120°F.  Consult your Marley sales 
representative for applications where hot water temperatures 
are greater than 120°F yet less than 145°F to determine 
upgrade possibilities. Stainless steel structural tubes resting in 
stainless steel hangers support the fill, and PVC tubes control 
alignment. This system also holds the bottom of the fill sheets 
above the cold water basin floor to simplify basin cleaning.

Fill sheets include both louvers and drift eliminators. The 

louvers in this patented arrangement keep water on the 
fill sheets and in your tower, and also assure proper heat 
transfer throughout wide variations in airflow. Users find this fill 
operates ice-free even in extremely cold weather.

Integral drift eliminators prevent the costly nuisance of 

drift spotting on objects in the sur round ing environment. 
Their unique shape induces the air flow through three distinct 
direction changes as shown below. The final turn directs air 
toward the fan to save you fan horsepower. Moisture carried 
in the air stream can’t make these abrupt turns, so drift is less 
than 0.005% of the circulating water flow rate.

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The Marley Geareducer speed reducer used in the Class 

160 line contributes a long record of dependability, long service 
life, and low maintenance. Their designs meet or exceed the 
requirements of CTI STD-111 and AGMA Std. 420.04. We run-
in every Geareducer unit under load prior to shipment to make 
sure that it will operate properly on your tower.

Housings are gray cast iron. Gears are high-strength, 

case hardened alloy steel. And all bearings are tapered roller 
bearings. A variety of available horsepower capacities and 
reduction ratios lets us choose the optimum Geareducer model 
and fan speed for your job. Service factors are always at least 
2.0 as applied.

Splash-type lubrication and integral cooling fins preclude 

the need for maintenance-intensive oil pumps and coolers. A 
constant oil bath or flow lubricates every bearing in forward or 
reverse motion—at full or half speed.

All Marley Geareducer assemblies are rightangle type with 

motors located outside the tower’s saturated airstream.

A galvanized steel lube line runs from the Geareducer unit to 

a standpipe near the motor on each cell, so you can check oil 
level and change or add oil while standing on the fan deck.