The system uses a real one-to-two refrigeration unit, which is in line with actual teaching. With cooling, heating, ventilation, dehumidification, temperature, wind speed selection, timing, sweep control, sleep, automatic and other functions.

The device is equipped with an outdoor unit component electrical control circuit wiring area, which can complete the electrical connection, compressor winding judgment, etc., which is conducive to students to apply theory to practice and cultivate students' practical operation skills.

The fault setting can be simulated, and students can analyze the possible causes of the fault according to the process, determine the scope of the fault, and troubleshoot. Conducive to the development of skills identification and assessment

The training device intuitively shows the system structure and working principle of the heat pump type one-split two-piece air conditioner. The structure of the refrigeration cycle system and the main components can be clearly seen. The system is also equipped with an AC voltmeter, AC ammeter, and temperature. Tables, vacuum pressure gauges, signal lights and light-emitting diodes make the real-time working status of the entire split air-conditioning system clear; the control system schematic is printed in the middle of the main panel, and corresponding test points are provided; it is convenient for teaching demonstration and students' understanding of textbook knowledge grasp. In addition, a sight glass is installed in the pipeline to observe the refrigerant state; the high-pressure pipeline is in red, and the low-pressure pipeline is in blue.