Danfoss ECL 2000, User Manual

Page: 28 / 106

Weather Compensation Curves
EY.65.H4.02
22
7.1 Adjusting the Flow Temperature Curve
The weather compensation curve for the flow temperature can be modified by setting:
A maximum and minimum value, 2 curve endpoints and, in addition to these, 3 break
points. Together, these parameters define the shape of the curve.
,
1. Press to select the desired heat circuit.
2. Press to display the flow temperature curve.
!
Note:
If you press
while a hot-water circuit is selected, the ECL 2000 displays a pop-up
informing you that this facility is not available for hot-water circuits.
Moving curve
points
3. Press to display the currently defined curve
points.
4. Use and to move the cursor to the point you
wish to modify.
The flow temperature (y co-ordinate) of the selected
point is highlighted to indicate that it can be modified.
5. Use and to select either the flow tempera-
ture (y co-ordinate) or the outdoor temperature (x
co-ordinate) of the point.
6. Use and to adjust the selected value.
!
Note:
If two curve points are placed in the same position, one point is automatically re-
moved.
Setting maximum
and minimum val-
ues 7. Ensure that the outdoor temperature of a point is
selected (x co-ordinate value highlighted), and
press
to display maximum and minimum val-
ues.
8. Use and to select either the maximum or
minimum setting.
9. Use and to adjust the selected setting.
Adding and re-
moving curve
points 10. Ensure that the curve’s minimum value is selected,
and press
to display break points.
The checked box indicates the number of break points
that are currently active (in this example, 1 break point
is active – in addition to the two curve endpoints).
11. Use to add a breakpoint or to remove one.