The advantage of mechanical thermostat is:
1. Simple structure and low cost
2. Because of the simple structure, the temperature controller is durable and stable, and the maintenance is simple and the cost is low.
3. The operation process does not require electricity, which is relatively more energy – saving.
The disadvantage of mechanical thermostat is:
1.Temperature control accuracy is inferior to Electronic thermostat, refrigeration and freezing can not be controlled independently.
2.Mechanical temperature control refrigerator can not achieve a truly independent refrigeration system, there are food odor mixing problems.
3.The operation is not easy. Need to open the refrigerator to set the temperature.