146
8. ARRANGEMENT
Sensor
Source
Output
Return preheating
Arrangement / Opt. functions / Add new function / Ret. preheat.
Adjustment
Description
channel
Output
Output selection
Sen. return
Return sensor selection
Sen. source
Heat source sensor selection
Switch-on temperature difference 2.0 ... 30.0 K
DTOn
Switch-off temperature difference 1.0 ... 29.0 K
DTOff
Summer off
Summer switch-off option
Sensor
Outdoor sensor selection
TOff
Switch-off temperature
Funct.
Activation / Deactivation
Sensor
Switch input selection
This function can be used for transferring heat from a heat source to the heating circuit return.
The allocated output is energised when all switch-on conditions are fulfilled:
• the temperature difference between the allocated sensors has exceeded the switch-on tem-
perature difference
• the temperature difference between the allocated sensors has not fallen below the switch-off
Return
temperature difference
sensor
• if Summer off is activated, the temperature at the outdoor temperature sensor falls below
the adjusted outdoor temperature value
With the summer switch-off option, the return preheating can be suppressed outside the heating
period.
Function block
Arrangement / Opt. functions / Add new function / Function block
Adjustment
Description
channel
Output
Output selection
Thermostat a
Thermostat function a
Th-a on
Switch-on temperature thermo-
stat a
Th-a off
Switch-off temperature thermo-
stat a
Sensor
Sensor thermostat a
Thermostat b
Thermostat function b
Th-b on
Switch-on temperature thermostat b -40 ... +250 °C
Th-b off
Switch-off temperature thermostat b -40 ... +250 °C
Sensor
Sensor thermostat b
DT function
Differential function
Switch-on temperature difference
DTOn
Switch-off temperature difference
DTOff
Set temperature difference
DTSet
Sen. source
Heat source sensor
Sen. sink
Heat sink sensor
Timer
Timer function
Ref. output
Reference output function
Mode
Reference output mode
Output
Reference output 1
Output
Reference output 2
Output
Reference output 3
Output
Reference output 4
Output
Reference output 5
Flow rate
Flow rate function
Fl. on
Switch-on flow rate
Fl. off
Switch-off flow rate
Sen. flow rate Flow rate sensor
Funct.
Activation / Deactivation
Sensor
Switch input selection
Adjustment
Factory setting
range / selection
system dependent
system dependent
system dependent
system dependent
system dependent
system dependent
5.0 K
3.0 K
Yes, No
No
system dependent
system dependent
10 ... 60 °C
20 °C
Activated, Deacti-
Activated
vated, Switch
-
-
Adjustment range
Factory setting
/ selection
system dependent
system dependent
Yes, No
No
-40 ... +250 °C
+40 °C
-40 ... +250 °C
+45 °C
system dependent
system dependent
Yes, No
No
+40 °C
+45 °C
system dependent
system dependent
Yes, No
No
1.0 ... 50.0 K
5.0 K
0.5 ... 49.5 K
3.0 K
3 ... 100 K
10 K
system dependent
system dependent
system dependent
system dependent
Yes, No
No
Yes, No
No
OR, AND, NOR, NAND OR
all outputs
-
all outputs
-
all outputs
-
all outputs
-
all outputs
-
Yes, No
No
1.0 ... 999.0 l/min
8.0 l/min
0.5 ... 998.5 l/min
7.5 l/min
system dependent
-
Activated, Deactivat-
Activated
ed, Switch
-
-