Answer
Ans: Pressure Tst Procedure of the CO2 Piping.
1) Close all openings of the piping: replace the nozzles with caps or plugs.
2) Inform all personnel to keep clear of the area to ensure that no one is injured due to faulty installations that may open during the pressure testing.
3) Connect all cylinders as specified to the system, to ensure that no g as will escape through the manifold.
4) Ensure that the cylinder batteries are blocked against accidental release through thecntrl piping. At best disconnect the control piping after the valves from the control distribution manifold.
5) Test pressure shall be 60 bar or as per maker recommendation whichever is high.
7) When using a separate air supply for the pressure testing, find a suitable connectionpoint where to install a supply point to the extinguishing system.
8) To check for leaks, go along the piping and listen for escaping g as. Additionally, apressure gauge may be installed to monitor the pressure over a time interval of about10 minutes. If no pressure gauge is available use for example soap water and check thefitting by applying the soap water and looking for bubbles
9) After the piping has been found in order, close the air supply.
10)Safely release the pressure out of the extinguishing system.