AMCOT ST SERIES FIBERGLASS COOLING TOWER
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STARTUP PROCEDURES
GENERAL STARTUP GUIDELINES
o Inspect all exterior surfaces of the cooling tower.
o Inspect and check all fasteners.
o Remove any debris such as dirt, leaves, rocks, or other foreign items that do not belong.
o With motor disconnected and locked out, rotate the fan manually to ensure it is not coming
into contact with casing panels or any other objects.
o Inspect the fan blades for any cracks or damage.
o Inspect motor junction box and electrical connections making sure all connections are
secure.
o On the side of the cooling tower casing panel there is an inspection port and cover. Remove
the cover, visually inspect the water distribution system and manually rotate to ensure it
spins freely. Reinstall the cover.
o Flush the cold water basin to remove any dirt or debris. This can be done by using a simple
hose and opening your drain connection.
o Inspect the water outlet strainer (located in the cold water basin) to make sure it is installed.
If there is debris on the strainer, remove, clean, and reinstall.
o For tower models ST-225 and greater, inspect the gear reducer assembly. Check belt
tension, belt condition, and grease the gear reducer using the fittings located on the reducer
assembly. Make sure the side access panels to the gear reducer is secured prior to
operation.
o Once everything has been inspected and cleaned, fill the cold water basin up to the
overflow.
o You may now energize the unit
o You will need to do a series of starts and stops with your circulating pump in order to fill
your water loop piping. Piping layout should be designed properly to minimize backflow
when pump is not operating.
o It is recommended that you turn on the pump for approximately 20-30 seconds and then
shut off. Allow the cold water basin to refill with water from your make-up source. Repeat
this process until your piping is completely filled with water. Depending on your piping you
may need to purge the system of any air pockets that could develop.
o Bump fan motor to make sure fan is rotating properly.
o Perform variable frequency drive (VFD) Startup in accordance with manufacturer’s
recommendations (if necessary).
o Check motor voltage and amperage, making sure the amperage is at or below nameplate for
the specific voltage using.
o Establish bleed rate for water based on water chemical treatment plan in place.
o At this point the unit should be operational and ready for continuous running.
o Check and adjust float valve assembly as necessary. Water level should be 1-2 inches below
the overflow during normal operation. It may be necessary to monitor this for several days.
o For ST-225 and greater, after the initial 40 operational hours you should shut down the unit,
lockout the motor, and adjust belt tension.
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