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Cooling Towers
The condenser water flow rate must be checked to be sure that it conforms to the system design. Some form of
temperature control is also required if an uncontrolled tower can supply water below about 65
F (18
C). If tower fan
control is not adequate, a tower bypass valve is recommended. Unless the system and chiller unit are specifically for
condenser bypass or variable condenser flow is not recommended since low condenser flow rates can cause unstable
operation and excessive tube fouling.
The condenser water pumps must cycle on and off with the unit. See Figure 14, Field Wiring Diagram on page 34 for
wiring details.
Tower water treatment is essential for continued efficient and reliable unit operation. If not available in-house,
competent water treatment specialists can be contracted.
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