Danfoss C17, Installer'S Manual

Page: 42 / 65

The grey
side of the
ECL Card
Ex
tended ser
vic
e
32f
Service parameter(s) 67
67 Adaptive function of S2 DHW charging temperature
during DHW charging
Circuit Setting range Factory setting
I OFF / 1 ... 50 20
The setting will eliminate the difference between the desired
DHW charging temperature (S2) and the DHW temperature (S3)
by integrating the difference and adjusting the desired S2 flow
temperature.
OFF: The desired DHW charging temperature will
not be adjusted any further.
1:
The desired DHW charging temperature will
be adjusted quickly.
50: The desired DHW charging temperature will
be adjusted slowly.
By setting a value (1 … 50) in line 67, the S2 temperature is
increased gradually to ensure a correct DHW temperature (S3).
When looking in the menu B, the desired charging temperature
(at S2) will be higher than the value for the desired charging
temperature, set in menu C (yellow side). This can indicate that
the heat exchanger is not transferring the heat in an optimal way
(limescale).
Max. temp.
Desired DHW
charging
temp.
Line 67 = OFF
C
o
S2
S3
Time
Line 152
Line C
Max. temp.
Desired
DHW
charging
temp.
Line 67 > OFF
C
o
S2
S3
Time
Line 152
Line C
For max. temperature at S2 during DHW charging, see also line
152.