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10
PT2
Detailed Component
Maintenance Procedures
2
Cold Water Basin
As water flows through the cooling tower it is cooled and flows into the cold water
basin then passes through the suction strainer into the system. The cold water basin
is constructed from one of the materials of construction listed below. The following
maintenance instructions apply to all basin materials of construction.
• Galvanized steel
• TriArmor
®
Corrosion Protection System
• Welded Type 304 stainless steel
Water Levels
Model Number At Overow Level (in.) At Operating Level (in.)
PT2-0412, PT2-0709, PT2-O809, PT2-1009,
PT2-1012, and PT2-1212
10 1/2” 6 5/8”
PT2-0814 and PT2-1214 11” 6 5/8”
PT2-1218 12 1/4” 8 1/2”
• The operating water level in the cold water basin will vary with system thermal load
(evaporation rate), the bleed rate employed, and the make-up water supply pressure.
• The make-up valve controls the operating level, which should be maintained at the
levels shown in Table 1.
• Check the operating water level monthly, and readjust the float when necessary to
maintain the recommended operating level.
• Consult “Water Level Control” on page 16 for information on how to set and maintain
the basin operating level.
Inspection & Maintenance
• Inspect the cold water basin regularly, according to the recommended maintenance
schedule. Remove trash or debris that may have accumulated in the basin or on the
strainer.
Table 1. Cold Water Basin Water Levels (Measured From Inside the Cold Water Basin)
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