25
Installation and Operating Instructions
G
as 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).
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