EbV Product documentation THETA NORM/UNIT
5-16
5.1.2.8.2 Manual mode
Function:
If the key is pressed for more than 5 s while the standard display is on, the controller
is switched to manual mode. In this operating mode the heat generator temperature
is set manually with the rotary pushbutton according to the desired setpoint (does not
have any effect if operated as extension of heating circuits). All the pumps are active,
while the available mixing valves are de-energized and can be actuated by hand if
required for the heat demand.
The heat generator setpoint can be set from 5 to 90°C and it flashes on the left hand
of the display, while the current heat generator temperature is displayed statically on
the right hand side.
The switching differential corresponds to the set differential for automatic control and
is symmetrical to the setpoint.
NOTE: The heat generator high limit prevails over the heat generator switching differential
and deactivates the heat generator in case it is exceeded.
In controllers that operate purely as an extension of the heating circuits, setting the
temperature has no effect.
The last value appears as a suggested value after the controller has adjusted to the
heat generator temperature.
Application: Controller malfunctions (emergency mode)
Malfunctions
Termination: The return to the previously selected operating mode is carried out by pressing key
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MANUAL
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