The HH-HC-202 air conditioning performance enthalpy difference laboratory is based on the core technology of the air enthalpy difference method. It accurately simulates the full temperature range of -15℃~55℃ and the humidity environment of 35%~90% RH. It supports 6000-48000BTU/h cooling/heating and 200-3000m³/h air volume testing. It is compatible with split-type (indoor ≤1200×800×1900mm) and window-type (≤800×800×800mm) air conditioners, providing high-precision data support for R&D, quality inspection and certification.