ASHRAE Guideline 12-2000 Legionellosis
Minimizing the Risk of Legionellosis Associated with Building Water Systems. Posted with permission from ASHRAE ©2000. This document may not be copied nor distributed in either paper or digital form without ASHRAE’s permission.
Contact ASHRAE at www.ashrae.org.
Operating Cooling Towers in Freezing Weather
A properly designed cooling tower promotes the maximum possible contact between air and water—and does so for the maximum possible time period. This effort on the part of the designer results in an efficiency which, although greatly appreciated in the summertime, has the capability to produce performance-degrading ice formations during winter operation.
Application of Cooling Towers for Free Cooling
Energy costs and operating efficiency have gained considerable importance in the minds of many building owners and plant operators in recent years. Current prospects for future prices of energy resources suggest that these issues will become even more urgent as environmental concerns and the high cost of money exert an ever greater impact on building design and operation.
White Rust and Galvanized Cooling Towers
Factory assembled cooling towers have been manufactured from "heavy mill galvanized" (HMG) steel for many years. HMG steel is continuously hot dip coated with protective zinc at the steel processing mill. The steel is treated subsequent to coating with a chromate rinse to initially passivate the zinc surface, providing for protection during storage, fabrication and initial operation from "wet storage stain".
Service Information – Marley Geareducer Savings
Have you considered the cost of owning a cooling tower with belt drive—the total cost? Although belt drive systems are inexpensive to manufacture, they're less efficient and require a lot of maintenance.