The primary controller compares the received requested demands and its own requested de-
mands and supplies the system with the required flow temperature – if necessary increased
by the value of the
Set point boost of primary exchanger control
parameter.
Note: Overheating may occur in heating circuits of the primary controller without control
valve.
Primary controller:
Functions
WE Configuration
Device bus 0 CO7 -> F01 - 1; device bus address
Receive external demand 0
5
CO7 -> F15 - 1
Register no. / 5 to 64
Parameter
WE Parameter level / Range of values
Set point boost of primary exchanger control 5 °C PA1 / 0 to 50 °C
Secondary controller:
Functions
WE Configuration
Device bus 0 CO7 -> F01 - 1; device bus address
Send flow set point Rk1 0 CO7 -> F10 - 1*
Send flow set point Rk2 0 CO7 -> F11 - 1*
Send flow set point Rk3 CO7 -> F12 - 1*
Send flow set point DHW 0 CO7 -> F13 - 1*
Send max. flow set point 0 CO7 -> F14 - 1*
5 * Register no. / 5 to 64
Note: The register number specifies the location where the flow set points are saved in the
primary controller. As a result, the register no. set in the secondary controller for
CO7 -> F10 to F14 must be the same as the register no. adjusted under CO7 -> F15 in the
primary controller.
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
106 EB 5579 EN
System-wide functions
To Next Page
Loading...
