Installation Guide
ECL Comfort 210 / 310, application A214 / A314
5.5 Limit T safety
The temperature sensor S5 can, besides operating as return
temperature limitation sensor, act as frost protection sensor.
When the S5 temperature becomes lower than the set limitation
value, the desired flow / duct temperature will be increased (the
motorized control valve opens gradually). The influence can be set.
Parameters indicated with an ID no. like "1x607" mean a universal
parameter.
x stands for circuit / parameter group.
MENU > Settings > Limit T safety
Infl. - min. (min. influence)
1x105
Circuit
Setting range
Factory setting
All
*
*
Determines how much the desired flow / duct temperature will be increased
if the S5 temperature is lower than the set value for 'Limit T frost'.
* See Appendix “Parameter ID overview”
0.0:
The desired flow / duct temperature will not be increased
if the S5 temperature is lower than 'Limit T frost'
Value:
The desired flow / duct temperature will be increased if
the S5 temperature is lower than 'Limit T frost'.
Example
The sliding frost protection is active below 10 °C.
The influence is set to 3.0.
The actual S5 temperature is 2 degrees too low.
Result:
The desired flow / duct temperature is increased with 3.0 x 2 = 6.0
degrees.
MENU > Settings > Limit T safety
Adapt. time (adaptation time)
1x107
Circuit
Setting range
Factory setting
All
*
*
Controls how fast the S5 temperature adapts to the desired 'Limit T frost' (I
control).
* See Appendix “Parameter ID overview”
OFF:
The control function is not influenced by the ‘Adapt.
time’.
Minor
value:
The desired temperature is adapted quickly.
Major
value:
The desired temperature is adapted slowly.
The adaptation function can correct the desired flow / duct
temperature with max. 8 K.
Danfoss District Energy
VI.GU.A2.02
DEN-SMT/DK
123
