Spring is a great time to consider your facility’s cooling tower system. As the weather warms up, many comfort cooling systems shut down in the late fall and winter will soon be put back into operation. Following a few “good housekeeping” procedures are important before these systems are filled with water and started up. These steps allow facilities managers to save money and avoid headaches during the cooling season.
Step 1: Clean Cooling Tower Fill, Basin and Hot Deck
To prepare a cooling system for the upcoming season, clean the cooling tower fill, basin and hot deck. Dirt and debris from the previous cooling season and winter months can build up and must be removed. Failure to remove this debris can foul and plug system components, leading to poor cooling system performance.
Additionally, debris can be a food source for microbiological growth, which can cause corrosion and fouling of heat exchange surfaces and can lead to airborne pathogens such as Legionella. To avoid these issues, debris should be removed from the hot deck and distribution holes. Any broken sprayers or distributors should be repaired or replaced, and the system should be sanitized before being returned to service.
Step 2: Clean and Calibrate Cooling Water Controller
To ensure the optimal functioning of your cooling systems, it’s crucial to clean and calibrate various components. These include the cooling water conductivity controller, probes, flow switch, level controls and chemical metering pumps. Conductivity, pH, and ORP probes that have not been serviced for several months should be cleaned and calibrated. Chemical metering pumps may also need to be cleaned and primed with fresh chemicals before calibration.
Components not properly maintained during the previous season may need to be repaired or replaced to help your cooling systems run smoothly and efficiently. Check that all parts function correctly to keep the cooling water’s chemical balance and prevent scale buildup and corrosion.
Step 3: Clean and Lubricate Fans and Motors
The final step in preparing for the cooling season is cleaning fan housings, lubricating fans and motors, and checking for oil leaks. Ensure fan belts are tight and in working order and replace them if necessary. Oil leaks in fan motors can foul the cooling water system, reducing heat transfer efficiency and causing microbiological growth.
RK Water can assist with your facility needs by providing maintenance services for cooling tower systems, including cleaning and disinfecting the water tanks, checking and repairing leaks, and ensuring that the system is functioning correctly before the start of the cooling season. RK Water’s expertise can help you save money on energy costs and avoid costly repairs down the line.