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About, Cooling Towers

Library, White Papers

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.

Air Inlet Water Management

Brochures, Library

Cooling towers bring water and air into contact to drive heat transfer. At the interface, where air and water first meet, an important objective is to retain water inside the tower.

Comparison Between Three Water Level Management Technologies Using a Float Valve, Marley LLC Conductivity and Marley LLC Ultrasonic Level Systems

Library, White Papers

Cooling towers remove heat from incoming process water, flowing downwards through a fill medium. During the heat rejection process, air moves across the falling water capturing heat and expelling heat to the atmosphere along with evaporated water.

The Use of Cooling Towers for Salt Water Heat Rejection

Library, White Papers

Salt Water Concrete Cooling Towers - Design Considerations

Flash Crossflow Fill

Parts, Fill and Drift Eliminators

LLC+ui integrated ultrasonic water level control User Manual

Library, Manuals

The LLC+ui water level control system consists of an ultrasonic sensor placed to measure the water level in the cold water basin.

Comparison of LLC Water Level Controls

Library, White Papers

This paper discusses the differences between Marley LLC Hanging Probe and Ultrasonic Water Level Controls.

New Cooling Tower Technology Augments HVAC and Industrial Processes

Expert Opinion Whitepapers, News Keep It Cool News Center

Cold Weather Operation of Cooling Towers Associated With Water Cooled Chiller Systems

Library, White Papers

The purpose of this paper is primarily to address the cold weather operation of open-circuit cooling towers associated with water cooled chiller systems, including those with waterside economizers. Closed-circuit cooling towers and evaporative condensers have special requirements that are not covered in this paper.

Marley PPWD Hybrid Plume Abatement

Products, Cooling Towers

LLCi Integrated Water Level Controls

Brochures, Library

Water level controls integrated within a main control panel. A complete system includes relay circuit cards, hanging probe system with stilling chamber and solenoid valve for water makeup.

LLC+u bms ultrasonic water level control User Manual

Library, Manuals

The Marley LLC+u+bms sensor is used to monitor water level in the cold water basin of a cooling tower cell using a non-contact ultrasonic sensor mounted on a stilling chamber. The sensor provides a 4-20mA continuous signal back to a BMS where alarming and controls are provided by the BMS.

Marley LLC Water Level Control System User Manual

Library, Manuals

Wiring, Operation, Troubleshooting, Specifications and Replacement Parts Manual

White Rust and Water Treatment

Library, White Papers

The best cure for white rust is an ounce of prevention when you begin operating your tower. Consult with your water treatment specialist and ask about his program for initial system operation and passivation of your galvanized steel cooling tower. We encourage early operation with near neutral pH water and use of only reasonable levels of film-forming inhibitors.