Danfoss 087H3241 User Manual

VI.KT.G6.02 © Danfoss | 2016.05 | 17
Maintenance
The controller automatically changes the desired ow temperature to obtain an
acceptable return temperature when the return temperature falls below or gets higher
than the set limit.
Inuence
‘Gain - min.’ > 0
‘Limit’
‘Gain max.’ > 0
Return temperature
‘Gain - max.’ < 0
‘Gain - min.’ < 0
This limitation is based on a PI regulation where P (Gain) responds quickly to deviations
and I (Intgr. time) responds slower and over time removes the small osets between the
desired and actual values. This is done by changing the desired ow temperature.
If the ‘Gain’ is too high and / or the ‘Intgr. time’ too low, there is a risk of unstable control.
Limit (return temp. limitation) 4030
Setting range Factory setting
10 ... 110 °C 50 °C
Set the return temperature you accept for the system.
Set the acceptable return temperature limit.
When the return temperature falls below or gets higher than the set value, the controller
automatically changes the desired ow temperature to obtain an acceptable return
temperature. The inuence is set in lines 4035 and 4036.
Return T limit (return temp. limitation) 4000

Danfoss 087H3241 Specifications

General

Brand	Danfoss
Model	087H3241
Category	Controller
Language	English