Condenser arrangement for a chiller

A heating, ventilation, air conditioning, and refrigeration (HVAC&R) system, comprising:

• a first condenser comprising a first condensing section and a first subcooler, wherein the first condenser is configured to place a first refrigerant in a first heat exchange relationship with a cooling fluid;
• a second condenser comprising a second condensing section and a second subcooler, wherein the second condenser is configured to place a second refrigerant in a second heat exchange relationship with the cooling fluid;
• and
• a conduit system configured to direct a first portion of the cooling fluid from a cooling fluid supply to the first condenser and then through the second condensing section of the second condenser in a series arrangement, wherein the conduit system is configured to direct a second portion of the cooling fluid from the cooling fluid supply directly to the second subcooler of the second condenser, such that the first portion of the cooling fluid is directed through the first condenser in parallel with the second portion of the cooling fluid directed through the second subcooler of the second condenser.

A heating, ventilation, air conditioning, and refrigeration (HVAC&R) system, comprising:

• a first condenser configured to place a first refrigerant in a first heat exchange relationship with a cooling fluid;
• a second condenser comprising a condensing section and a subcooler, wherein the second condenser is configured to place a second refrigerant in a second heat exchange relationship with the cooling fluid;
• and
• a valve configured to:
• regulate a flow of a first portion of the cooling fluid from a cooling fluid supply to the first condenser and the condensing section of the second condenser;
• and
• regulate a flow of a second portion from the cooling fluid supply directly to the subcooler of the second condenser,
• wherein the second condenser is disposed downstream of the first condenser relative to the flow of the first portion of the cooling fluid through the first condenser and the second condenser.