Danfoss EKC 202B Manual page 11

Defrost on demand – aggregate refrigeration time
Set here is the refrigeration time allowed without defrosts. If the time is passed, a defrost will be
started.
With setting = 0 the function is cut out.
Defrost on demand – S5 temperature
The controller will follow the effectivity of the evaporator, and via internal calculations and
measurements of the S5 temperature it will be able to start a defrost when the variation of the
S5 temperature becomes larger than required.
Here you set how large a slide of the S5 temperature can be allowed. When the value is passed,
a defrost will start.
The function can only be used in 1:1 systems when the evaporating temperature will become
lower to ensure that the air temperature will be maintained. In central systems the function
must be cut out.
With setting = 20 the function is cut out
If you wish to see the temperature at the S5 sensor, push the controller's lowermost button.
If you wish to start an extra defrost, push the controller's lowermost button for four seconds.
You can stop an ongoing defrost in the same way
Fan
Fan stopped at cut-out compressor
Here you can select whether the fan is to be stopped when the compressor is cut out
Delay of fan stop when compressor is cut out
If you have chosen to stop the fan when the compressor is cut out, you can delay the fan stop
when the compressor has stopped.
Here you can set the time delay.
Fan stop temperature
The function stops the fans in an error situation, so that they will not provide power to the appli-
ance. If the defrost sensor registers a higher temperature than the one set here, the fans will be
stopped. There will be re-start at 2 K below the setting.
The function is not active during a defrost or start-up after a defrost.
With setting +50°C the function is interrupted.
Real-time clock
The controller (EKC 202) can accommodate one insertion module which may either be a data
communication module or a battery module for the real-time clock.
The battery module is used in conjunction with the real-time clock and will keep the clock going
during lengthy power failures.
Real-time clock
You can set up to six individual times for defrost starts for each 24-hour period. There is also a
date indication used for registration of temperature measurements.
Defrost start, hour setting
Defrost start, minute setting (1 and 11 belong together, etc.)
When all t01 to t16 equal 0 the clock will not start defrosts.
Clock: Hour setting
Clock: Minute setting
Clock: Date setting
Clock: Month setting
Clock: Year setting
EKC 202 / 302 Manual RS8DZ702 © Danfoss 03-2012
d18 MaxTherRunT
d19 CutoutS5Dif.
Defrost temp.
Def Start
Here you can start a manual defrost.
Hold After Def
Shows ON when the controller is
operating with coordinated defrost.
Defrost State
Status on defrost
1= pump down / defrost
Fan control
F01 Fan stop CO
(Yes = Fan stopped)
F02 Fan del. CO
F04 FanStopTemp.
(Times cannot be set via data communica-
tion. Settings are only relevant when there
is no data communication).
t01-t06
t11-t16
t07
t08
t45
t46
t47
11