Amcot ST Series - Seasonal; Prolonged Shutdown

AMCOT ST SERIES FIBERGLASS COOLING TOWER
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GENERAL MAINTENANCE
Prolonged (Seasonal) Shutdowns
Some customers will not require their cooling towers to be operational during winter months of the
year. In these cases, many owners will take their tower out of service for an extended period of time.
In doing so, you should take certain steps before entering these times of shutdown and additional steps
when restarting your cooling tower after a prolonged shutdown period.
Prior to shutdown:
 Drain all water from the system
 Loosen the adjusting nut on the V-belt reducer (ST-225 to ST-1500) to provide slack to your
V-Belts
 Tarp the top of the unit to prevent debris from entering and settling inside the unit which
can be very hard to remove later.
 Ensure all valves are closed and disconnect power to your equipment.
Prior to Restarting:
 Open drain connection.
 Remove tarp if used.
 Wash down the entire unit with water to remove dust and debris
 Retighten V-belts on reducers (ST-225 to ST-1500) per belt tensioning steps on page 39.
 Grease Bearings on reducers (ST-225 to ST-1500) per instructions on Page 41.
 Inspect Float Valve Assembly
 Remove inspection port cover on side of unit and visually inspect the sprinkler assembly.
o Rotate by hand to make sure it rotates freely.
 Inspect the mechanical assembly for any debris and clean accordingly.
 Inspect the fan assembly and clean to remove scale buildup and inspect for any cracks or
damage.
 Fill cooling tower with water. Cycle your system and the flush. Refill system.
 Unit will now be ready to return to service.