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Details

cooling tower

Trouble-shooting for
cooling towers:

 

 

 

Troubleshooting

 

 

 

Trouble

Cause

Remedy

Motor Stoppage

Electric Blackout. Fuse Burn Out. Insufficient Switch Capacity. Bad Switch Contact.

Contact Power Co. 2 Get Proper Fuse. Change the Proper Switch. Adjust Contact.

Sudden Lowering of Motor R.P.M.

Bad Star-Delta Contact. Too Heavy Loads. Lowering of Voltage.

Adjusts Contact. Lighten to Proper Load. Consult Power Company.

Fan Stoppage

Bad Bearing

Exchange Bearing

 

 

 

 

 

 

Temperature Rise

 

 

 

Trouble

Cause

Remedy

Motor Temperature Rise

Too Heavy Load. Lowering of Voltage. High Surrounding.

Lighten Load to Proper Level. Consult Power Company. Send Out to Repair Shop.

 

 

 

Rise in Water Temperature

 

 

 

Trouble

Remedy

Water Flow Above Specified Flow

Correct Flow Rate.

Air Flow Below Specified Flow.

Adjust Blade Angles Check and Clean Jali.

Load Higher than Design

Adjust Load to correct Flow Rate.

Fills Chocked or Coated

Clean/Replace Fills. Use Proper Water Quality (Make up)

Fresh Air Intake not sufficient or area sufficient or area near tower not as specified.

Improve Ventilation and Ensure Exhaust air does not get recycled.

Water Bypassing Fills.

Check Sprinkler Head and Pipe Leakages.

Sprinkler Jammed/Water not being Sprinkled and Distributed.

Repair Sprinkler and Distribution System.

 

 

 

Water Flow Less

 

 

 

Trouble

Remedy

Filters Chocked

Clean Water Filters

Sprinkler Pipe Chocked

Clean Pipes and Holes

Level of Water Low in sump

Adjust Float/Inlet Flow Proper Make-up

Pump Small

Replace to Correct Flow Volume

Filters Chocked

Clean Water Filters

Sprinkler Pipe Chocked

Clean Pipes and Holes

Level of Water Low in sump

Adjust Float/Inlet Flow Proper Make-up

Pump Small

Replace to Correct Flow Volume

 

 

 

Noise & Vibration

 

 

 

Trouble

Remedy

Fan Mounting Loose

Tighten Mounting Bolts and Correct/Replace if needed.

Fan Blocks Loose

Tighten Blade in Hub

Fan Unbalanced

Rebalance and Adjust

Motor Bearing Faulty

Check and Grease or Replace Bearing on Motor

Hub Mounting on Motor Shaft Loose

Tighten and use end Plate and shims if required

Many Parts Rubbing againt Tower Component

Give Proper Clearance and Adjust/Align Components.

 

 

 

Water Carry Over

 

 

 

Trouble

Remedy

Sprinkler Rotation too Fast

Adjust Sprinkler Angles as to Match the specified rotation

Blocking of Filter

Clean up any blockage part

Defective Eliminator

Renew Eliminator

Sprinkler too high above fills

Adjust as specified below 

25 M.M. FT –8 TO FT-30 

50 M.M. FT-40 TO FT-80 

75 MM. FT-100 AND UP

 

 

 





Water Carry Over

 

Every Day

 

Vibrations Are Normal/Noise Normal.

Water Distribution Proper.

Fan Motor Current Normal.

Inlet/Outlet Temperature Of Water Normal.

 

Every Day

 

Clean Inlet Jali To Remove Entrained Matter.

Clean Inlet Water Filter.

Clean Sprinkler / Nozzles If Chocked.

Check Growth of Alger Etc. And Remove From Sump.

 

Every Month

 

Drain Tank, Flush Out and Remove Any Sediment.

Check Fills If Clogged Due To Algae, Sediment / Salts, Etc.

Check Structure / Frp Casing and Basin Damage and Repaired If Necessary.

Clean From Outside With Soap and Water.

Check And Tight All Bolts.

Smear Bolts with Grease to Facilitate Easy Opening the Next Time.

 

Every Six Months

 

Grease All Bearings Of Motors.

Grease All Bearings Of Sprinklers.

Check Run out On Fan Motor Shaft.

Clean Blades Of Foreign Matter.

Check Fills If Damaged And Replace.

Enlace Bearing Of Sprinkler Assembly After 2 Years And Fill With Grease.