Danfoss ECL Comfort User Manual page 18

10m
10.7 Cooling system with constant cooling
temperature
Control principle:
PI control of brine temperature (S3).The brine temperature
is held at a constant level by the motorized valve M2.The
circulation pump P1 is controlled by relay R1.
System settings
The desired temperature at S3 is set in display A (with
the yellow side of the card facing you). The setting of the
balance temperature (grey side, line C) has no function in this
application.
Circuit Line Description
I 2
I 85
I 86
Temperature limits (S3) min/
max
Application selection
R1 relay cut-in delay
Recomm.
setting
-20 °C / 50 °C
1
0 sec.