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9
SERIES 3000 COOLING TOWER
Detailed Component
Maintenance Procedures
2
Cold Water Basin
Aswatercirculatingthoughthecoolingtoweriscooled,itcollectsinthecoldwater
basinandpassesthoughthesuctionstrainerintothesystem.Thecoldwaterbasin
isconstructedfromoneofthefollowingmaterialsofconstructionandthefollowing
maintenanceappliestoallbasinmaterialsofconstruction.
• Galvanizedsteel
• TriArmor
®
CorrosionProtectionSystem
• WeldedType304stainlesssteel
Water Levels
Model Number
At
Overflow
Level (in.)
At
Operating
Level (in.)
[2]
Model Number
At
Overflow
Level (in.)
At
Operating
Level (in.)
[2]
3240C, 3272C, 3299C
14 3/4 8 3/4
3872C, 3923C, 3970C
20 1/4
[1]
9 3/4
3333C, 3358C, 3379C
15 1/2 8 3/4
3918C, 3984C
21
[1]
9 3/4
3371C, 3393C, 3430C
16 1/4 8 3/4
3985C, 31056C, 31133C
21 3/4
[1]
9 3/4
3412C, 3436C
14 3/4 8 3/4
3583C, 3618C, 3676C,
3719C, 3725C
15 1/4
[1]
9 3/4
3455C, 3482C, 3527C
15 1/4 8 3/4
31132C, 31186C
19 1/4
[1]
9 3/4
3473C, 3501C
14 1/4 8 3/4
31130C, 31212C
19 7/8
[1]
9 3/4
3552C, 3604C, 3648C,
3672C
15 3/4 9 3/4
31213C, 31301C
20 1/2
[1]
9 3/4
3728C, 3781C, 3828C,
3871C
18 1/2 9 3/4
• Theoperatingwaterlevelinthecoldwaterbasinwillvarywithsystemthermalload
(evaporationrate),thebleedrateemployed,andthemake-upwatersupplypressure.
• Themake-upvalvecontrolstheoperatinglevel,whichshouldbemaintainedatthe
levelsshowninTable 1.
• Checktheoperatingwaterlevelmonthly,andreadjusttheoatwhennecessaryto
maintaintherecommendedoperatinglevel.
• Consult“WaterLevelControl”onpage 19forinformationonhowtosetandmaintain
thebasinoperatinglevel.
Table 1. Cold Water Basin Water Levels (Measured From Inside the Cold Water Basin)
NOTES:
1. The following materials of
construction combinations have a
basin overflow height of 18 1/2”:
- TriArmor
®
Corrosion Protection
System or stainless steel cold
water basin with either
galvanized steel or thermosetting
hybrid polymer frame
- EVERTOUGH™ Construction
2. These are the standard operating
levels. If the connection size is
custom, contact your local BAC
representative.