How To Do Evapco Cooling Tower Maintenance

EVAPCO cooling tower maintenance focuses on keeping thermal performance, mechanical reliability, and water quality at design levels. Below is a field-proven maintenance guide aligned with EVAPCO AT / LST / LSTE / ATWB / Counterflow & Crossflow towers.

1. Evapco Cooling Tower Maintenance Daily / weekly checks (operations)

* Check cold-water basin level

* Listen for abnormal fan or gearbox noise

* Observe fan rotation & airflow

* Check for visible drift or water leaks

* Verify make-up valve operation

* Record hot & cold water temperatures

2. Monthly Evapco Cooling Tower Maintenance

Mechanical

* Inspect fan blades (cracks, pitch setting, bolt tightness)

* Check fan hub & shaft alignment

* Inspect motor mounts and vibration isolators

* Check gearbox oil level (center of sight glass)

* Inspect drive shaft couplings (if gear drive)

Water distribution

* Inspect and clean spray nozzles

* Check branch arms and risers for blockage

* Ensure uniform water distribution over fill

3. Quarterly Evapco Cooling Tower Maintenance

* Lubricate motor bearings (if regreasable)

* Inspect drift eliminators for plugging or damage

* Inspect fill media (scaling, biofouling)

* Check basin strainers & debris screens

* Inspect air inlet louvers

4. Semi-annual Evapco Cooling Tower Maintenance

* Change gearbox oil (or per oil analysis)

* Clean cold-water basin (sludge, sediment)

* Check structural bolts & fasteners

* Inspect fan stack / fan cylinder for cracks or air leakage

* Test vibration and safety switches

5. Annual shutdown Evapco Cooling Tower Maintenance (critical)

* Deep clean fill and drift eliminators

* Flush spray system

* Inspect gear reducer for seal leaks and backlash

* Check fan blade pitch and rebalance if required

* Inspect corrosion on casing and structure

* Inspect and test electrical systems (motors, starters, VFDs)

6.Evapco Cooling Tower Maintenance Water treatment (very important)

* Maintain proper cycles of concentration

* Control:

 * Scale

 * Corrosion

 * Biological growth

* Periodic Legionella risk control

* Blowdown system must operate correctly

> Poor water chemistry is the #1 cause of fill plugging and performance loss.

7. Common EVAPCO Cooling Tower Maintenance issues

* Plugged spray nozzles → uneven wetting

* Low gearbox oil level → gear failure

* Incorrect fan blade pitch → overload or poor cooling

* Drift eliminator fouling → high pressure drop

* Basin sludge → pump damage

8. Safety reminders

* Lockout / tagout before any work

* Never enter tower with fan rotating

* Use fall protection when working at height

* Beware of biological exposure

9. Recommended Evapco Cooling Tower Maintenance records

Keep logs for:

* Gearbox oil changes

* Fan pitch settings

* Vibration readings

* Water chemistry reports

* Parts replacement history