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Cooling Towers and Salt Water

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.

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.

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.

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.
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