Cooling Tower Handbook !link!
If you see ice, do not shut down. Increase heat load. Increase water flow. Do not stop the fan unless you intend to scrap the cell.
To survive winter, you must abandon summer logic. Do not chase a cold water setpoint. Instead, manage three variables: cooling tower handbook
As word of the handbook spread, industry professionals began to clamor for a copy. Plant managers, maintenance supervisors, and engineers from all over the world requested the handbook, praising its clarity, comprehensiveness, and practicality. The handbook became an overnight sensation, with a second edition quickly following to address emerging topics like energy efficiency and environmental sustainability. If you see ice, do not shut down