一、Product Overview

This equipment integrates split air conditioning and air-cooled defrosting refrigerators, using a combination open design and artificially adding common faults in circuits and pipelines. It allows students to comprehensively and systematically understand and master the circuit principles and electrical control of air conditioning and refrigerators, as well as the analysis, troubleshooting, and maintenance methods of refrigeration cycles, heating cycles, circuit faults, and pipeline faults. It enables students to master practical skills through hands-on learning while learning theory.

二、Technical Parameter

1)Working power supply: single-phase three wire 220V ± 5% 50Hz；

2)Safety protection: leakage protection (operating current ≤ 30mA), overcurrent protection, fuse protection；

3)Boundary dimension: 1600 ×?700× 1550mm；

4)Rated power:<1.5KW；

5)Refrigeration heating capacity: 530K for refrigeration and 600K for heating；

6)Refrigerant: air conditioner F-22, refrigerator F-12；

7)Environmental temperature: -10 ℃~40 ℃；

8)Relative humidity:<85%；

9)Equipment weight: 80Kg。

三、Practical training projects

A. Air conditioning malfunction

1.Pressure controller open circuit;

2.Remote control receiver+5V open circuit;

3.Open circuit of indoor fan;

4.Four way valve open circuit;

5.Four way valve coil open circuit;

6.Open circuit of condensing fan;

7.Open circuit of overheat overload protector;

8.Compressor running capacitor open circuit.

B. Refrigerator malfunction

1.Power supply open circuit;

2.Overload protector circuit breaker;

3.Short circuit of starter;

4.Open circuit of bulb filament;

5.Open circuit of temperature controller;

6.Defrost timer motor open circuit;

7.Temperature fuse open circuit;

8.Heating tube open circuit;

9.Defrost timer open circuit.