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• Lubricate the bearings as follows:
–
Initial Start-up:
Normally, no lubrication is required since the bearings have been
lubricated at the factory prior to shipment. However, if the cooling tower has been
stored at the job site or more than three months, both bearings should be lubricated
with new grease before initial operation.
When lubricating, purge the old grease
from the bearing by gradually adding grease until a bead of new grease appears at
the seal on the underside of the bearing.
–
Seasonal Start-up
: Purge the bearings with new grease prior to start-up.
–
Operation
: Purge the bearings with new grease every three months while in
operation, or 2,000 hours, whichever comes first.
–
Extended Shutdown
: Purge the bearings with new grease before and after any
prolonged storage or downtime.
Heat Transfer Section
Fill & Drift Eliminator
The Series 3000 has PVC fill with integral drift eliminators.
Inspection & Maintenance
• Inspect and clean the fill with the integral eliminators at least quarterly.
• The inspection procedure is as follows:
–
Shut-off the fan and the system pump.
–
Inspect the fill for obstructions, damage and fouling.
• Remove any obstructions from the fill.
• Remove any minor fouling chemically. Contact your local water treatment consultant
for advice.
• Major fouling requires cleaning and flushing.
Water Distribution System
Hot Water Basin
The hot water basins are located on the fan deck. The system water enters the cooling
tower through the hot water basins (refer to
Figure 6, page 19
). A series of nozzles, which
distribute water over the fill, are located in the hot water basin. There are four materials
of construction for the hot water basin: Galvanized steel, Thermosetting Hybrid Polymer,
Type 304 stainless steel and Pultruded Fiberglass Reinforced Polyester (PFRP).