Danfoss C17, Installer'S Manual

Page: 39 / 65

The grey
side of the
ECL Card
Ex
tended ser
vic
e
36 Return temperature influence - min. limitation
Circuit Setting range Factory setting
I -9.9 ... 0 ... 9.9 0.0
Set the influence from the return temperature on the desired DHW
charging temperature.
Set the influence of the min. return temperature
limitation (set in line 30 or lines 31-34).
Influence higher than 0:
The desired DHW charging temperature is
increased, when the return temperature gets
below the set limit.
Influence lower than 0:
The desired DHW charging temperature is
decreased, when the return temperature gets
below the set limit.
0
Influence
Min. limitation > 0
Return limit Return temp.
Min. limitation < 0
Example
The limitation temperature is set to 25 °C.
The influence is set to 2.0.
The actual return temperature is 2 degrees too low.
Result:
The desired DHW charging temperature temperature is changed
by 2.0 x 2 = 4 degrees.
Normally, the setting in line 36 is 0 in district heating systems
because a lower return temperature is acceptable.
Typically, the setting in line 36 is higher than 0 in boiler systems to
avoid a too low return temperature (see also line 35).
Service parameter(s) 36
32c