3. Commissioning
3.3 Function blocks
Depending on the selected system/variant and other
options e.g. internal heating circuit module, certain re-
lays are already assigned. Relays which are not assigned
can be allocated to one of the 5 function blocks other
uses e.g.(extra valves, stores, heat sources etc ).
Function
Function block 1 Function block 2 Function block 3 Function block 4
Thermostat 1- S3 Thermostat 3- S5 Thermostat 5- S5 Thermostat 7- S7
Thermostat
Thermostat 2- S4 Thermostat 4- S6 Thermostat 6- S6 Thermostat 8- S8 Thermostat 10- S10
Differential
DT-5
function DT
Timer
Relay
Within a function block, these functions can be activated
and combined as required in the menu (Arrangement/
Options/...). All switch-on conditions of all activated
functions have to be fulfilled in order to energise the
Function
Function block 1
Thermostat 1- S3
Thermostat
Thermostat 2- S4
Differential func-
DT-5
tion DT
Timer
Relay
Examples:
S5
Sen. 1 – S3
Sen. 1 – S5
DT-6
Sen. 2 – S4
Sen. 2 – S6
1
2
3
4
Sen. 1 – S3
Sen. 2 – S4
1
3
S6
R4
Each function block provides 4 functions:
1 temperature differential function
2 thermostat functions
1 timer (with 21 time frames)
Sen. 1 – S5
DT-7
Sen. 2 – S6
3
5
relay allocated to the function block (Arrangement/Adj.
values/...). These functions can be compared to swit-
ches connected in series:
Th1-S3
Th2-S4
The temperature differential function of a function block
has to be activated in order to implement a simple
return preheating function.
DT6-S5>S6
Arrangement/Options/DT-Func6
„Yes".
Function block 5
Thermostat 9- S9
Sen. 1 – S7
DT-8
DT-9
Sen. 2 – S8
4
6
DT5-S3>S4
Timer 1
R4
change setting to
77
Sen. 1 – S9
Sen. 2 – S10
5
7
R3