Danfoss ECL Comfort 210 Installation Manual page 78

Installation Guide
MENU > Settings > Return limit
High limit Y2 (return temp. limitation, high limit, Y-axis)
Circuit
All
Set the return temperature limitation referring to the outdoor temperature
value set in 'Low T out X2'.
* See Appendix "Parameter ID overview"
The corresponding X coordinate is set in 'Low T out X2'.
MENU > Settings > Return limit
Infl. - max. (return temp. limitation - max. influence)
Circuit
All
Determines how much the desired flow temperature will be influenced if the
return temperature is higher than the calculated limit.
* See Appendix "Parameter ID overview"
Influence higher than 0:
The desired flow temperature is increased, when the return
temperature gets higher than the calculated limit.
Influence lower than 0:
The desired flow temperature is decreased, when the return
temperature gets higher than the calculated limit.
78 DEN-SMT/DK
ECL Comfort 210 / 310, application A266
1x034
Setting range Factory setting
*
1x035
Setting range Factory setting
*
*
Influence
*
If the 'Infl. ' factor is too high and / or the 'Adapt. time' too low, there is
a risk of unstable control.
Example
The return limit is active above 50 °C.
The influence is set to -2.0.
The actual return temperature is 2 degrees too high.
Result:
The desired flow temperature is changed by -2.0 x 2 = -4.0 degrees.
Normally, this setting is lower than 0 in district heating systems to
avoid a too high return temperature.
Typically, this setting is 0 in boiler systems because a higher return
temperature is acceptable (see also 'Infl. - min.').
VI.KT.X3.02
'Infl. - min.' > 0
'Limit'
'Infl. - max.' > 0
Return temperature
'Infl. - max.' < 0
'Infl. - min.' < 0
Danfoss District Energy