AEEDL-006 is based on the air enthalpy difference method and constructs an "indoor + outdoor dual-chamber" test system, covering an ultra-wide temperature range of -20~60℃ and an air volume of 200-2000CFM. It is compatible with environmentally friendly refrigerants such as R32/R290, complies with GB 7725-2010 and ISO 5151/13253 standards, and accurately measures core performance of air conditioning such as cooling/heating, defrosting, and energy efficiency (COP/SEER).