CWR stands for which term?

• A. Chilled Water Return
• B. Cooling Water Return
• C. Condenser Water Return
• D. Condenser Water Reservoir

Answer: (C)

Understanding HVAC water loop naming helps you decode what CWR refers to. In condenser water systems, water is circulated from the condenser through the cooling tower and back to the plant to be cooled again. The returning leg of that loop is called the Condenser Water Return, which is why this term is the standard match for the abbreviation CWR.

The other phrases describe either a different loop or an inappropriate concept: a chilled water return would belong to the chilled water (CHW) loop, not the condenser loop; a generic “cooling water return” isn’t a standard labeled term in most drawings; and a reservoir implies storage rather than the return path of the circulating condenser water.