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A Comprehensive Approach to the Analysis of Cooling Tower Performance

The generally accepted concept of cooling tower performance was developed by Merkel in 1925. The Merkel Equation combines the sensible and latent heat transfer into an overall process based on enthalpy potential as the driving force.

Air Cooled Condensers

The modularized A-Frame design is used on power plants of all sizes. The integral features are long-term mechanical and thermal integrity, excellent corrosion and freeze resistance, low fan power consumption, reliable operation and low maintenance.

Air Cooled Condensers - Africa, Middle East, and SE Asia References

Recent Air Cooled Condenser installations in Africa, Middle East, and SE Asia.

Air Cooled Condensers - Americas References

Recent Air Cooled Condenser installations in North America.

Air Cooled Condensers - China References

Recent Air Cooled Condenser installations in China.

Air Cooled Condensers - Europe References

Recent Air Cooled Condenser installations in Europe.

Air Cooled Condensers - Global References

Recent Air Cooled Condenser installations world wide.

Air2Air Cooling Technology Brochure

We can save you water. A lot of water.

AirFin Air-Cooled Heat Exchangers

AirFin benefits from the advanced research facility at SPX Cooling Technologies in Germany. Ongoing, aggressive research and development assures the division’s position as a market leader in technology. 

Application of Cooling Towers for Free Cooling

The use of Marley towers in free cooling applications extends back at least 30 years, during which time Marley-manufactured crossflow, counterflow, induced draft, and forced draft towers were so applied. 

ASHRAE Guideline 12-2000 Legionellosis

Minimizing the Risk of Legionellosis Associated with Building Water Systems

Balcke Counterflow Mechanical Draught Cooling Tower

The mechanical draught cooling tower, also referred to as the fan-assisted wet cooling tower, is the most widely used type of cooling tower in the world.

Balcke Hybrid Cooling Tower

Hybrid or Wet/Dry cooling towers are the ideal solution to reduce plume and conserve water.

Balcke Natural Draught Cooling Tower

With a combined total of over 275 natural draft concrete hyperbolic cooling towers installed and operating worldwide, the SPX Cooling Technologies team offers you an outstanding source of design, engineering, manufacturing and construction expertise.

Bearing Housing Model 1301

Assembly, Installation, Maintenance, and Repair Manual

Bearing Housing Series 118 and 118SE User Manual

Assembly, Installation, Maintenance, and Repair Manual

Can-Do Control Panel User Manual

Field Connection, Operation, Wiring Diagram, and Troubleshooting Manual

Ceramic Permagrid® Counterflow Splash Fill

Ceramic™ Permagrid tile fill is the most durable fill in the industry with a guaranteed minimum of 25 years of service. Molded from domestic clay to strict specifications, the clay is heat fired to create a fill that is immune to traditional fill deterioration problems. 

Class 500 Crossflow Cooling Tower User Manual - Non Current

Starting Procedure, Operation, Maintenance, and Shutdown Instructions Manual

Class 600 Crossflow Cooling Tower Manual

Start Procedure, Operation, Energy Management, Shutdown Instructions, Maintenance, and Troubleshooting Manual

Class F600 Cooling Tower Manual

Starting Procedure, Operation, Energy Management, Shutdown Instructions, Maintenance, and Troubleshooting Manual

Class FM400 User Manual - Non Current

Starting Procedure, Operation, Maintenance, Shutdown Instructions, Tower Cleaning, and Safety Manual

Class W400 Counterflow Tower Manual

Starting Procedure, Operation, Energy Management, Shutdown Instructions, Maintenance, and Troubleshooting Manual

Cofimco Fan - Adjustable Hub User Manual

Fan Components and Assembly, Installation, Blade Pitch Adjustment, Maintenance, and Service Manual

Cofimco Fan - U Style Hub User Manual

Assembly, Installation, Fan Blade Pitch Adjustment, Maintenance, and Service Manual

Compac II Series 91000 Parts List - Non Current

Parts List Manual

Compac II Series 91000 User Manual - Non Current

Installation, Start-Up, Operation, Maintenance, and Shutdown Instructions Manual

Company Profile: Asia Pacific

An overview of the applications for which we provide in Asia Pacific; including power generation, heavy industrial and process, Air2Air, LNG vaporization, HVAC, and reconstruction and aftermarket service. Also, this brochure includes an overview of cooling towers manufactured in China.

Cooling Tower Basic Control System Manual

Factory Installation, Field Connection, Operation, Parts List, Maintenance, and Troubleshooting Manual

Cooling Tower Energy and Its Management

Because of the fuel shortages which began to manifest themselves in the early 1970s, the cost of energy began its asymptotic rise.  Current general awareness of the energy problem has made the quest for improved energy efficiency seem to be an effort that is in its infancy. 

Cooling Tower Fundamentals

Cooling Tower Fundamentals is devoted to the implementation of water cooling systems which satisfy design and environmental requirements with sound engineering and responsible cost.

Cooling Tower Inspection Checklist

Checklist for the inspection of cooling towers.

Cooling Tower Inspection Tips

Use these instructions (together with the Cooling Tower Inspection Checklist Manual 92-1447) to perform a thorough inspection on virtually any cooling tower. Always refer to your tower owners manual if you have specific questions about your cooling tower.

Cooling Tower Parts Reference Guide and Catalog

Cooling Tower Parts Reference Guide for current and legacy brands as well as other brands. Comprehensive catalog of parts, maintenance tips and cooling tower knowhow.

Cooling Tower Performance Basic Theory and Practice

A cooling tower is a specialized heat exchanger in which two fluids (air and water) are brought into direct contact with each other to affect the transfer of heat.

Cooling Tower Product Development

From its inception, Marley has been committed to a strong research and development program. In 1957, this effort was centralized in the current Development Center constructed on the site of what was once a limestone mine located on the outskirts of Kansas City. Within four underground acres, controlled experimentation proceeds under laboratory conditions. Outside, seven acres provide ample space in which to conduct prototype testing under ambient conditions.

Cooling Towers and Salt Water

For cooling tower service, any circulating water with more than 750 parts per million chloride expressed as NaCl is generally considered as salt water. However, the effects of chlorides will be much less severe at 750 ppm than they will at higher concentrations.

Corrosion Protection for Cooling Towers

The forces of corrosion (as the term is being used in this paper) are those elements or compounds whose natural tendency is to chemically or electrolytically react with a metal, given the opportunity and a proper set of circumstances. 

Cross-Corrugated Film Fill as a Crossflow Film Fill Replacement

Substituting counterflow cross-corrugated film fill as a replacement for crossflow film fill is not recommended and loss of performance and certification may result

CTI TP93-01

Plume abatement and water conservation with the wet/dry cooling tower

CTI TP98-08

Cooling Tower Plume Abatement at Chicago’s O’Hare Airport

Design Information - Florida Building Code

Marley cooling towers are modified specifically to comply with the Florida Building Code. Make sure your cooling towers are designed to meet this very demanding code.

Driveshaft Series 6Q, 175, and 250 Twin Flex User Manual

Assembly, Installation, and Maintenance Manual

Electric Motor for CT’s and DriCoolers User Manual

Installation, Operation, and Maintenance Manual

External Influences on Cooling Tower Performance

A cooling tower reacts much like a human being to its air supply. If it is caused to reinhale its own exhaust, it begins to smother. If that air supply is restricted, it begins to choke. 

Green Evaporative Cooling Brochure

Green builders looking for an environmentally responsible cooling system and exceptional performance need look no further. SPX Cooling Technologies, a U.S. Green Building Council member and LEED® advocate, offers you the perfect solution—Evaporative Cooling.

Guardrail System for Marley NC Class Cooling Tower

The new guardrail system for NC towers offers faster assembly and easier maintenance. A significant reduction in parts and new, clear instructions ensure that your guardrails are assembled accurately and securely.

HCT Wood and Steel Double-Flow User Manual - Non Current

Operation and Maintenance Manual for Series 8, 9, 10, 14, 15, and 18

Hexacool Air Cooled Condenser

A cost-effective, compact design with many advantages over conventional A-frame designs

Horizontal Flow Control Valve 10"-20” Parts List

Diagram, Assembly Sequence, and List of Replacement Parts

How to Keep Cooling Towers Running Strong

Part one of a guide to cooling tower maintenance, focuses on the mechanical aspects of cooling towers. Written by Ken Mortensen, SPX Cooling Technologies. RSES Journal, April 2003.

How to Manage Cooling Tower Water Quality

Part two of a series on cooling towers, reviews the importance of water management, treatment and system monitoring for peak performance. Written by Ken Mortensen, SPX Cooling Technologies. RSES Journal, May 2003.

HP 7000 Fan Clamped Blade Shank - 192” thru 240”

Fan and Hub Installation, Fan Blade Pitch Adjustment, Maintenance, and Service Manual

HP7i 6 Blade Fan - 72” thru 168” Diameter User Manual

Assembly, Fan Blade Pitch Setting, and Service Manual

International Glossary of Cooling Tower Terms

International glossary and cross section of cooling tower terms in five languages. English, Chinese, French, German, and Spanish

ITA Counterflow Cooling Tower User Manual - Non Current

Installation, Start-Up, Operation, Maintenance, and Troubleshooting Manual

LNG Vaporization Brochure

Introducing dramatically more efficient regasification. Plus an innovative source for pure water

Marley 1500 Series Bearing Assembly User Manual

Components, Installation, and Maintenance Manual

Marley 440-450 Vibration Switch User Manual

Installation operation and user tips on the operation of the Marley 440 and 450 vibration switch

Marley 5550 Vibration Switch User Manual

Installation operation and user tips on the operation of the Marley 5550 vibration switch

Marley Alpha III Crossflow Splash Fill

Alpha III fill will increase cooling tower capacity (compared with wood lath on similar spacing). Variable fill bar spacing is available to provide the required thermal performance.

Marley Aquatower

Today’s Aquatower may be the most space/energy efficient cooling tower available. Thousands of Aquatower users enjoy the benefits of eight major redesigns and dozens of minor improvements in the past 40 years. The Aquatower has inspired many imitators. Only Marley can offer you the original.

Marley Aquatower Cooling Tower User Manual

Installation, operation and maintenance instructions—as well as those offered separately on motors, fans, float valves, etc.—are intended to assure that your Aquatower serves you properly for the maximum possible time.

Marley AV Cooling Tower Engineering Data and Specifications

AV engineering data, product specifications plus specification meaning and value. Base tower and options.

Marley AV Series Cooling Tower

The Marley AV Series cooling tower is designed to minimize your costs and maximize your cooling performance through quick, easy installation and energy-efficient operation. Its single flow, induced draft crossflow design offers you pump and fan energy savings in a small footprint installation. The AV is an excellent replacement for forced draft counterflow cooling tower installations.

Marley AV Series Cooling Tower User Manual

Installation, operation and maintenance instructions—as well as those offered separately on motors, fans, float valves, etc.—are intended to assure that your AV tower serves you properly for the maximum possible time.

Marley Biomedia System

As a single-source supplier for cooling tower components, SPX Cooling Technologies extends the same philosophy to water waste treatment/biomedia installation.
Construction is an integral part of the teamwork responsible for function and performance of your biological wastewater treatment.

Marley Can-Do Cooling Tower Control Panel Specifications

Marley Can-Do cooling tower control panel Can-Do everything you need for efficient simple cooling tower electrical controls.

Marley Class 1000 User Manual - Non Current

Starting Procedure, Operation, Energy Management, Maintenance, Cleaning, Troubleshooting, and Safety Manual

Marley Class 160 Cooling Tower

The Marley Class 160 is a field erected, film-fill crossflow cooling tower. Similar in design to the Sigma, these highly-efficient, low-maintenance towers offer a wide choice of solutions for heavy industrial plants and large HVAC applications.

Marley Class 160 Crossflow Cooling Tower Specifications

Class 160 wood construction product specifications plus specification meaning and values. Base tower and options.

Marley Class 600 Crossflow Cooling Tower

The Class 600 is a field erected splash-fill cooling tower. Class 600 cooling towers are available in various cell sizes, fill air travels, and fill heights. Within each of these cell plans, several aspects of the basic design can be varied in order to achieve optimum operating economy. 

Marley Class 600 Crossflow Cooling Tower Specifications

Class 600 wood construction product specifications plus specification meaning and values. Base tower and options.

Marley Class 800 Counterflow Cooling Tower Specifications

Class 800 mechanical draft concrete construction product specifications, specification meaning and values. Base tower and options.

Marley Class 800 Counterflow Cooling Tower Specifications-Seawater

Class 800 mechanical draft concrete construction product specifications for seawater application. Specification meaning and values. Base tower and options.

Marley Class 800 Mechanical Draft Cooling Tower

The Marley Class 800 counterflow concrete cooling tower has proven itself as one of the most efficient and reliable cast-in-place designs in the world. The introduction of the Precast 800 version is a logical design evolution taking advantage of increasingly available quality precast production facilities.

Marley Class 800 Mechanical Draft Cooling Tower User Manual

Starting Procedure, Operation, Energy Management, Maintenance, Troubleshooting, and Safety Manual

Marley Class 800 Natural Draft Cooling Tower

With a combined total of over 275 natural draft concrete hyperbolic cooling towers installed and operating worldwide, the SPX Cooling Technologies team offers you an outstanding source of design, engineering, manufacturing and construction expertise.

Marley Class F400 Cooling Tower

The Marley industrial counterflow cooling tower has proven itself as one of the most efficient and reliable designs ever. The F400 cooling tower is a logical engineered evolution of this proven design, making use of pultruded fiberglass shapes as structural members.

Proven through years of successful chemical plant construction, pultruded fiberglass is ideal for the wet, corrosive cooling tower environment. It’s strong like steel but at a fraction of the weight. Yet, it will not corrode from chemical exposure or moisture, and it resists deterioration from sunlight.

Marley Class F400 Cooling Tower User Manual

Starting Procedure, Operation, Maintenance, Tower Cleaning, Troubleshooting, and Safety Manual

Marley Class F400 Counterflow Cooling Tower Specifications

F400 fiberglass construction specifications plus specification meaning and values. Base tower and options.

Marley Class W400 Cooling Tower

Because we design and manufacture virtually all the components of the Class W400 cooling tower, you’ll benefit from single source responsibility and reliability. All components are designed and selected to be a part of an integrated system. 

Marley Class W400 Counterflow Cooling Tower Specifications

Class W400 wood construction product specifications plus specification meaning and values. Base tower and options.

Marley Cleanflow Fill

The Marley Cleanflow anti-fouling film type fill consists of thermoformed corrugated sheets made of rigid polyvinyl chloride (PVC), impervious to decay, fungus and biological attack. 

Marley Collection Basin Heater User Manual

Operation, Troubleshooting, and Parts List Manual

Marley Coolfilm Fill

The Marley Coolfilm fill consists of rigid polyvinyl chloride (PVC), impervious to decay, fungus and biological attack. 

Marley Cooling Tower Downtime Instructions

Suggested procedures for protection of tower mechanical equipment for downtime ranging from seasonal to extended.

Marley Counterflow Distribution System

The entire distribution system is computer-designed to maximize thermal performance and can be optimized to minimize pump head. The design also minimizes structural interference with water distribution. The Marley system avoids the uneven water distribution and high operating pressures associated with upspray nozzle systems.

Marley CTF Fiberglass Film-Fill Cooling Tower

The Marley CTF fiberglass, forced draft, counterflow cooling tower with high-performance film fill is the ideal solution for space-sensitive applications. Its corrosion resistant fiberglass construction makes it an excellent alternative to stainless steel products

Marley CTF Fiberglass Splash-Fill Cooling Tower

The Marley CTF fiberglass, forced draft, counterflow cooling tower with clog-resistant splash fill is the ideal solution for space-sensitive applications. Its corrosion resistant fiberglass construction makes it an excellent alternative to stainless steel products

Marley CW and CS User Manual - Non Current

Operation and Maintenance Manual

Marley DF254 Counterflow Fill

DF254 is a bottom support low-clog log fill configuration. Open, angular cross-corrugations allow debris and biological growth foulant to pass, while providing maximum surface area and turbulence to develop efficient heat transfer.

Marley DF381 Clog-Resistant Film Fill

DF381 is a bottom support low-clog log fill configuration. Open, angular cross-corrugations allow debris and biological growth foulant to pass, while providing maximum surface area and turbulence to develop efficient heat and moisture transfer.

Marley DH Distribution Basin Cover

DH distribution basin covers provide generous head room for maintenance at the flow-control valves. The horizontal open area along the fan deck level allows natural light and ventilation within the enclosure.

Marley Driveshaft Series 301 and 400 User Manual

Parts List, Installation, Alignment, and Maintenance Manual

Marley DuraLast Architectural Casing

Marley DuraLast pultruded fiberglass architectural casing is an attractive, ideal material for the wet, corrosive cooling tower environment. It’s strong and lightweight. Plus, it will not corrode from chemical exposure or moisture, and it resists deterioration from sunlight.

Marley DuraLast Fan Deck

Marley DuraLast pultruded fiberglass fan deck panel is an attractive, ideal material for the wet, corrosive cooling tower environment. It’s strong and lightweight. It will not corrode from chemical exposure or moisture, and it resists deterioration from sunlight.

Marley DuraLast Hot Water Basin

Pultruded fiberglass composite is an ideal material for the wet, corrosive cooling tower environment. It’s strong and lightweight. Yet, it will not corrode from chemical exposure or moisture, and it resists deterioration from sunlight.

Marley Electric Basin Heater Manual

Installation, Operation, Parts List, and Troubleshooting Manual

Marley Electric Motor User Manual

—Installation, operation and maintenance of Electric Motors on Cooling Towers