Abstract: Currently, performance testing standards and methods for room air conditioners are based on fixed operating points. The units under test are placed in a constant temperature and humidity laboratory, which differs significantly from actual operating conditions. Additionally, during the test, the air conditioner operates with a locked frequency, preventing the assessment of its frequency adjustment capabilities and failing to accurately reflect real performance. In order to solve the problems of the existing test methods, the methods and standards for air conditioning performance testing in various countries are in the direction of transition to dynamic testing. Based on the typical international CSA SPE-07:23 dynamic testing method. Proposes a program for the renovation of air enthalpy testing facility suitable for dynamic testing in terms of equipment configuration, data acquisition system, software calculation and control system, etc., and carries out experimental research and validation of the facility's renovation and dynamic testing. The results show that the dynamic following accuracy of the dry bulb temperature of the renovated facility does not exceed 0.3 ℃, and the dynamic following accuracy of the wet bulb temperature does not exceed 0.2 ℃.

Key words: Performance testing, Free power regulation, Standards for air conditioner testing, Laboratory renovation