24
83055116 • 1/2016-05
Installation and Operating Instructions
Gas burner WG20.../1-C ZM-LN (W-FM 25)
5 Operation
Operating level
The current stepping motor position and/or blower speed can be displayed in the
operating level (
10
).
Displaying the gas butterfly valve setting:
u
Press [G] key.
Displaying the air damper setting:
u
Press [L/A] key.
OFF function
u
Press [Enter], [L/A] and [G] keys simultaneously.
a
Immediate lockout with error
18h
.
Operating status
The operating status of the combustion manager can also be displayed, which helps in
troubleshooting the burner’s fault.
u
Press and hold [-] and [+] simultaneously for approx. 3 sec.
a
The combustion manager changes to operating display. The display shows the
current operating status with a number.
Back to standard display:
u
Press and hold [-] and [+] simultaneously for approx. 3 sec.
