Condenser Water pumps are primarily used to circulate water through the condenser section of water cooled chillers and their associated cooling tower. The

condenser water absorbs the heat from the chiller's condenser section and releases it into the atmosphere in the cooling tower. These systems are used to provide

the most efficient means of creating chilled water, they are as much as 20% more efficient than air cooled chillers.

2.7.20 The AF-600 FP solution

Frequency converters can be added to condenser water pumps instead of balancing the pumps with a throttling valve or trimming the pump impeller.

Using a frequency converter instead of a throttling valve simply saves the energy that would have been absorbed by the valve. This can amount to savings of

15-20% or more. Trimming the pump impeller is irreversible, thus if the conditions change and higher flow is required the impeller must be replaced.

AF-600 FP Design Guide

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