Precautions:
1. Before installing,be sure the unit has not been damaged during transport;
2. Please note that the flow direction and the port size;
3. Be sure the pressure, the temperature, and installation conditions is accordance with the technical requirements;.
4. Be aware of the fluid and environment. In order to avoid damage the water cup and oil cup;
5. Please change the filter element regularly;
6. If the fittings need to be removed form the FRL unit for a period of time, be sure to block the thread port with protecting cap,to keep the dust away.