Danfoss ECL Comfort 310 Operating Manual page 70

Operating Guide ECL Comfort 310, application A377
MENU > Settings > Room limit
Infl. - max. (room temp. limitation, max.)
Determines how much the desired flow temperature will be influenced
(decreased) if the actual room temperature is higher than the desired room
temperature (P control).
See Appendix "Parameter ID overview"
0.0:
No influence
-2.0:
Minor influence
-5.0:
Medium influence
-9.9:
Maximum influence
MENU > Settings > Room limit
Infl. - min. (room temp. limitation, min.)
Determines how much the desired flow temperature will be influenced
(increased) if the actual room temperature is lower than the desired room
temperature (P control).
See Appendix "Parameter ID overview"
9.9:
Maximum influence
5.0:
Medium influence
2.0:
Minor influence
0.0:
No influence
70 | © Danfoss | 2017.10
1x182
= Room temperature
X
= Desired room temperature
# 1#
# 2 # = Negative influence (1x082) when actual room temp. gets higher
than desired room temp.
# 3 # = Positive influence (1x083) when actual room temp. gets lower than
desired room temp.
The 'Infl. - max.' and 'Infl. - min. ' determine how much the room
temperature should influence the desired flow temperature.
If the 'Infl. ' factor is too high and / or the 'Adapt. time' too low, there is
a risk of unstable control.
Example
The actual room temperature is 2 degrees too high.
The 'Infl. - max. ' is set to -4.0.
The heat curve slope is 1.8 (see 'Heat curve' in 'Flow temperature').
Result:
The desired flow temperature is changed by (2 x -4.0 x 1.8)
–14.4 degrees.
In application subtypes, where a heat curve slope value is not present,
the heat curve slope value is set to 1:
Result:
The desired flow temperature is changed by (2 x -4.0 x 1):
–8.0 degrees.
Example
The actual room temperature is 2 degrees too low.
1x183
The 'Infl. - min. ' is set to 4.0.
The heat curve slope is 1.8 (see 'Heat curve' in 'Flow temperature').
Result:
The desired flow temperature is changed by (2 x 4.0 x 1.8)
14.4 degrees.
In application subtypes, where a heat curve slope value is not present,
the heat curve slope value is set to 1:
Result:
The desired flow temperature is changed by (2 x 4.0 x 1):
8.0 degrees.
VI.GU.F6.02