... replacethefan and water pumpvalvesystem.somaintenance is greatly reduced. The system uses the closed-loop controlsystemsothat improve the level of ... for fan.3) high-performance automation system SY-FP system is designed for the system includes PLC control, PID control of ... from direct sunlight, no corrosive gas, flammable gas, oil mist, water vaporSystem Features1, high power-saving rate: good voltage ...