9
EN
1
2
3
5
4
7
6
13
piping
application
discharge in open air
internal thermal unit
external roof
8
9
Power
12
11
10
3.4 - GENERIC EXAMPLE OF AN INSTALLATION
(Burner Gas Train)
1. Gas filter
2. OPSO shut off valve
3. Pressure regulator
4. Minimum pressure switch
5. 355AA fast opening
automatic solenoid valve
6. Maximum pressure switch
7. Slow opening automatic solenoid valve
8. External reset
9. Burner control
10. Valve proving system
11. Relief valve
12. Pressure gauge and relative button
13. Gas detector
