Safety - SPX MARLEY CP User Manual

troubleshooting
Trouble Cause
Loose bolts and cap screws
Unusual fan drive
vibration
Fan
Blade rubbing inside of fan hood
Fan noise
Loose bolts in blade clamps
Insufficient blowdown
Scale or foreign
substance in circulating
Water treatment deficiency
water system
Entering wet bulb temperature is above design
Design wet bulb temperature was too low.
Condensing temperature
too warm.
Actual process load greater than design
See "Cooling Tower
Operation. "
Overpumping
Evaporative condenser starved for air
Spray system malfunction
Excessive drift exiting
evaporative condenser
Faulty drift elimination
SAFETY FIRST–The CP cooling tower has been designed to provide a safe working environment while either
operating or shut down. The ultimate responsibility for safety rests with the operator and owner. When water
flow to the tower is shut off or when portions of the tower require maintenance, temporary safety barricades may
be required around openings and fall protection equipment should be utilized where appropriate for compliance
with OSHA and CE regulations, standards and good safety practices.
Remedy
Tighten all bolts and cap screws on all mechanical equipment and
supports.
Make certain all blades are as far from center of fan as safety devices
permit. All blades must be pitched the same. See "Fan IOM Manual. " Clean
off deposit build-up on blades
Adjust to provide blade tip clearance
Check and tighten if necessary.
See "Water Treatment" section of this manual.
Consult competent water treating specialist. See "Water Treatment"
section of this manual
Check to see if local heat sources are affecting evaporative condenser.
See if surrounding structures are causing recirculation of evaporative
condenser discharge air. Discuss remedy with Marley representative.
May have to increase evaporative condenser size. Discuss remedy with
Marley representative
May have to increase evaporative condenser size. Discuss remedy with
Marley representative
Reduce water flow rate over evaporative condenser to design conditions.
Check motor current and voltage to be sure of correct contract
horsepower. Repitch fan blades if necessary. Clean eliminators. Check to
see if nearby structures or enclosing walls are obstructing normal airflow
to evaporative condenser. Discuss remedy with Marley representative.
Inspect spray system for proper operation. Correct as necessary.
Check to see that the eliminators are clean, free of debris and installed
correctly. Clean if necessary. Replace damaged or worn out components.
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