Abstract: With the advancement of industry and technology, the evaluation of air conditioner performance in China has transitioned from a "point" assessment based on rated operating conditions to a more "comprehensive" evaluation of seasonal performance. This evaluation takes into account the seasonal performance factors by analyzing the distribution of bin-hours through steady-state measurements conducted under limited indoor and outdoor working conditions. However, the existing methods fail to adequately reflect the dynamic control quality of direct expansion air conditioning equipment, such as air conditioners. To address this issue, proposes an enhanced method for dynamic environment and load-based seasonal performance testing, referred to as the load-based seasonal performance testing method. The core principle of this method involves simulating the outdoor conditions of air conditioning equipment over a specific measurement period within a performance laboratory. On the indoor side, heat and humidity loads corresponding to the outdoor operating conditions are applied, and the test air conditioning equipment is utilized to maintain the indoor temperature and humidity within the specified operating conditions and accuracy range. Based on the indoor load compensation method, two distinct approaches can be distinguished: the static compensation method and the dynamic compensation method. Presents a thorough examination and analysis of these two testing methods and their respective applicability.

Key words: Dynamic environment, Variable load, Control strategy, Performance measurement, Standardization