Excessive charging temperatures in DHW circuits without control valve controlled by the pri-
mary controller are excluded when the default settings of the controller are used: while stor-
age tank charging is active, no flow temperature higher than the charging temperature is
used by the primary controller.
Nevertheless, if the
Priority for external demand
function is activated, the external demand
is also processed during storage tank charging.
Function
WE
Configuration
Priority for external demand
0
CO4 -> F16 - 1
7.12.2 Sending and receiving outdoor temperatures
Controllers equipped with one (two) outdoor sensor(s) can be configured to supply other
controllers with the measured outdoor temperature(s) over the device bus. This enables
weather-compensated control even in systems which do not have their own outdoor sensor.
Functions
WE
Configuration
Device bus
0
CO7 -> F01 - 1; device bus address
Send value AF1
0
1
CO7 -> F06 - 1
Register no. / 1 to 4
Receive value AF1
0
1
CO7 -> F07 - 1
Register no. / 1 to 4
Send value AF2
0
2
CO7 -> F08 - 1
Register no. / 1 to 4
Receive value AF2 (receive an out-
door temp. independent of RK1)
0
2
CO7 -> F09 - 1
Register no. / 2 to 4
Note!
The register no. for the outdoor temperature AF1 or AF2 must be the same for the sending
and the receiving controller.
7.12.3 Synchronizing the clock
One
controller in a system of coupled controllers should perform the
Clock synchronization
function. This controller sends its system time once every 24 hours to all other controllers over
the device bus.
82
EB 5576 EN
System-wide functions
