Issue Description:

When P2 is correctly installed with a fire safety set, and you want to do a fire extinguishing test, or P2 catches fire during processing, you may find little or no carbon dioxide gas ejected from the vent hole. This may result in a failure to extinguish the fire or an unsatisfactory fire-extinguishing effect.

#1 Check the Air Tube of the Fire Safety Set for Kinks

1. Check the external air tube of the fire safety set for any kinks and adjust them.
2. If it can not be adjusted, just cut off the kinked segment and rejoin the ends.

#2 Check the Air Tube Connector Inside P2 for Loose Connection

1. Remove the rear plate of P2 and check the connection of the air tube.
2. If you find it loose or detached, please reinstall it.

Note: Please make sure not to bend the air tube when reinstalling the rear plate.

#3 Check the Air Tube Inside P2 for Kinks

1. Remove the rear plate of P2 and check the air tube.
2. If it is kinked, press down the connector of the air tube and take it out.
3. Cut off the kinked segment and rejoin the ends.

Note: Please make sure not to kink the air tube when reinstalling the rear plate.