GE AF-600 FP Series Design And Installation Manual page 57

TM
Application Set-Up Examples
AF-600 FP Design and Installation Guide
6.3.16 Condenser Pumps
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.
6.3.17 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.
6 6
Illustration 6.12 Condenser Water Pump
54 DET-768b