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SDC / DHC Hydraulic Components
EN2H-0221GE51 R0808 149
Besides return temperature limitation either volume flow limit or
thermal output limit can also be set for this controller. The
selection of these functions is described below in parameter 11.
Para-
meter
Designation Range Pre-
setting
Step Unit
08 Max. return
setpoint
0 ... 100 90 0.5 °C
09 Starting point
of the flexible
district heating
return
temperature
Off
–40...+10
Off 0.5 °C
11 Return limit
0 =
Temperature
1 = Volume
flow and
temperature
2 = Heat output
and
temperature
0 / 1 / 2 0 - -
7.2.4 Return temperature limit for hot-water loading
In the case of hot-water loading a special constant return setpoint
applies. It is valid only if the hot-water loading pump is operating.
The return setpoint is to be set with parameter 10.
Para-
meter
Designation Range Presetti
ng
Step Unit
10 Hot-water
circuit loading:
Target return
40 ... 100 90 0.5
°C