How to Evaluate Water-Cooled Air Conditioner Efficiency

Published by QIANGSHENG · Jingdong Smart Electric Co., Ltd.

Efficiency compares useful cooling output with the electricity needed to produce it. For a fair purchase decision, compare units at matching test conditions and include the power used by the complete installation.

Read cooling capacity and input power separately
Cooling capacity in kW is the heat removal rate; electrical input in kW is power consumption. COP is cooling output divided by electrical input under the stated conditions. A large cooling-capacity number is not an electricity-consumption figure.

Define the measurement boundary
Ask whether the quoted electrical input covers only the unit or also pumps, fans and other required equipment. Request the applicable test conditions and part-load data, where available.

Do not equate rated COP with annual savings
Actual energy use depends on operating hours, load variation, controls and maintenance. Use measured or documented system input across representative operating periods when comparing options. Treat a percentage without a baseline and test conditions as an unverified estimate.

Industrial AC selection guide · Discuss your project requirements