R227 System Maintenance
(1) When checking the net weight loss of each bottle group is more than 5% or the pressure loss is 10%, find out the cause and eliminate the supplement in time;
(2) Remove the solenoid valve wires and check the power supply of the fire extinguishing system control circuit;
(3) Conduct spot checks on all types of valves and find that old damages are replaced in time;
(4) Perform a full inspection of the system every 5 years. In addition to the above 3, the system and network should be tested for strength and airtightness, and the whole system should be simulated and debugged. Since the system is made of metal, it is easy to be affected by air. Rust, so the system piping is purged every 5 years.