Siemens QAA74 - Page 97

Appendix
11
Special operations
97
Siemens Graphical User Interface UI400 CE1U2348en
Building Technologies 2014-06-03
Deaeration function
The deaeration function removes any air in the heating/hot water system using an
automatic deaerator installed above the boiler.
w Navigation to special operation menu is described in Section "Operate special
functions [➙ 66]".
1. Select "Deaeration function" = "On".
The function is activated. The additional operating line "Type of venting" is
displayed.
2. Conclude the function with "Deaeration function" = "Off".
Controller stop function
The controller stop function can be used to manual control the burner.
w Navigation to special operation menu is described in Section "Operate special
functions [➙ 66]".
1. Select "Controller stop function" = "On".
The function is activated. The additional operating line "Controller stop
setpoint" is displayed.
2. Conclude the function with "Controller stop function" = "Off".
Procedure
Procedure