? The touch screen control box based on PLC control and the control box controlled by pure relay are commonly used equipment in the air-conditioning refrigeration system of ships.
1. The relay control system can be read from the display:
--Air temperature
--Air humidity
--Compressor oil pressure and suction and discharge pressure
- Running time of compressor and fan motor
2. The PLC control system can realize:
--Collect the temperature of each point
--Start and stop of fan motor
--Humidity control
- Heating system control
--Compressor start and stop control
--Compressor can be adjusted and controlled
--Remote start and stop (optional)
--Network communication (optional)