SDC / DHC
Hydraulic Components
EN2H-0221GE51 R0812
233
7.3.11.3.3 Operation with NTC 20K room temperature sensor
Instead of the RFF, an NTC 20 room sensor can be connected to
a sensor input (VI1-VI3)
Configuration is carried out in the "Hydraulics" menu, parameter
08, 09 or 10.
Assignment to the heating circuit to be acted upon by the room
sensor is carried out via a fixed heating circuit assignment using
parameter settings (e.g. 30 = DC, 31 = MC1, 32 = MC2)
The combined operation of an NTC 20 room sensor and an SDW
10/SDW 30 room sensor for a heating circuit is not possible. If an
SDW 10/SDW 30 room sensor is connected, it always has first
priority. In this case, the NTC 20 room sensor has no effect. With
operation via a connected SDW 30 (room sensor with no effect),
an NTC 20 room sensor can be combined with a variable input.
With an NTC 20 room sensor connected, all room functions of the
heating circuit are in effect ("Direct Heating Circuit", "Mixed
Heating Circuit 1" or "Mixed Heating Circuit 2" menu, parameter 4
= active). In conjunction with the NTC 20 room sensor, this means
a shift of the controller (software) to the central device. The
configuration of the room controller with NTC 20 room sensor
operation occurs via additional parameters in the central device
menu trees DC/MC1/MC2. The room controller in the SDW 30
functions as before. Room control in conjunction with SDW 10 is
not possible.
7.3.11.3.4 Heating circuit bus authorisation
This setting serves to determine the authorisation status of a
room station connected to a heating circuit. One parameter per
available heating circuit is available for this setting.
Simple access authorisation
Only switching times and parameters of the
specific
heating
circuit concerned can be read and modified. On call-up, only the
information for the heating circuit concerned are displayed to the
respective user (operator).
Tenant status
Function
Function
Set value
Application
Содержание DHC
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