Giersch GG20-LN, Техническая информация и инструкции по установке

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14. Air flap positioning motor
The positioning drive STA 13 B0 is used to adjust the
air flap on burners with a 2-stage or modulating operat-
ing modes. Make the adjustment using the limit switch
cams on the positioning drive roller.
After each normal shut-down, the positioning drive
moves to fully closed (ST0).
For this purpose, remove the hood from the air flap po-
sitioning motor. Alter the cam positions via the adjust-
ing screws with a standard screwdriver.
The switching cams can be readjusted when calibrat-
ing the burner.
The cam positions for adjusting the burner to the re-
quired min/max output are given in the adjustment ta-
ble.
see adjustment tables on pages 14 - 15.
For this:
Remove the hood from the positioning drive. Alter the cam positions via the adjusting screws with a stand-
ard screwdriver.
The switching cams can be readjusted when calibrating the burner.
Higher number = increase air
Lower number = reduce air
Adjustments to ST1 and ST2 do not become effective until a brief switchover between 1st/2nd stage (or
triggering of Up/Down on output controller) has taken place.
Do not adjust cam ST1/min. to a value that is greater than ST2/max.
After readjusting the burner, refasten the positioning
motor hood and set the switch on the lower part of the
control unit to the position 2nd stage.
ST1
ST0
ST2
Start-up