Art. No. SC 1000 KNX
4.2.4.3.9 Disable functions of the room temperature controller
Disable controller
Certain operation conditions may require the deactivation of the room temperature control. For
example, the feedback control can be switched off during the dew point mode of a cooling
system or during maintenance work on the heating or cooling system. The parameter "Switch
off controller (dew point operation)" in the parameter node "Room temperature control ->
Controller functionality" enables the 1-bit object "Disable controller" when set to "Via bus". In
addition, the controller disable function can be switched off when set to "No".
In case a "1" telegram is received via the enabled disable object, the room temperature control
will be completely deactivated. In this case, the command values are equal "0" (wait 30 s for
update interval of the command values). The controller, however, can be operated in this case.
The additional level can be separately disabled when in two-level heating or cooling mode.
When set to "Yes", the "Additional level disabling object" parameter in the "Room temperature
control -> Controller general" parameter node will enable the
1 bit "Disable additional level" object. In addition, the disable function of the additional level can
be switched off when set to "No". In case a "1" telegram is received via the enabled disable
object, the room temperature control is completely deactivated by the additional level. The
command value of the additional level is "0" while the basic level continues to operate.
i A disable is always deleted after a reset (return of bus voltage, ETS programming
operation).
Page 220 of 347
Software "Smart Control 501511"
Functional description
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