25
Installation and Operating Instructions
Gas burner WG20.../1-C ZM-LN (W-FM 25)
83055116 • 1/2016-05
5 Operation
5.2 Display
The display shows the current operating statuses and operating data.
1
Programming level activated
2
Start phase activated
3
Info level activated
4
Stepping motor runs to CLOSED position
5
Stepping motor runs to OPEN position
6
Burner in operation
7
Lockout
8
Service level activated
Stand-by, no call for heat.
Stand-by, X3:7 circuit open (Plug No. 7 removed)
Unprogrammed condition or programming not
completed.
Shutdown via Fieldbus.
Insufficient gas pressure
Under-voltage or internal device error, see error
memory (display flashes).
Connection to the Fieldbus is faulty (display flashes).
1
2
3
4 5
6
7
8