Danfoss EKC 414A Manual page 5

Selection of thermostat sensor
Here you define the sensor the thermostat is to use for its control function. S3, S4, or
a combination of them. With the setting 0%, only S3 is used (Sin). With 100%, only S4
(Sout)
Melt function
Only for control of refrigeration (-5 to +10°C). The function ensures that the evapo-
rator will not be closed by frost. Here you set how often the function is to stop the
refrigeration and hence transform the frost to water (or ice if there is too much frost).
Melt period
Here you set how long an on-going melt function is to last.
Alarm settings
The controller can give alarm in different situations.
When there is an alarm the light-emitting diodes (LED) will flash on the front panel of
EKA 162.
Delay on temperature alarm
If one of the two limit values A13 or A14 is exceeded, a timer function will be started.
The alarm will only become visible when a set time delay is passed.
The time delay is set in minutes.
Time delay for door alarm
If the digital input is used for a door monitoring function (see definition in the "Mis-
cellaneous" section) an alarm will not be given until a given period with open door
has elapsed.
The time delay is set in minutes..
Time delay for cooling
This time delay is used during start-up, during defrost, immediately after a defrost,
and when the ON function has been used. There will be change-over to the normal
time delay (A03) when the temperature has dropped below the set upper alarm limit.
The time delay is set in minutes.
Upper alarm limit
Here you set when the alarm for high temperature is to start. The limit value is set in
°C (absolute value). The limit value will be raised during night operation. The value is
the same as the one set for night setback, but will only be raised if the value is posi-
tive.
Lower alarm limit
Here you set when the alarm for low temperature is to start. The limit value is set in °C
(absolute value).
Compressor function
The compressor relay works in conjunction with the thermostat. When the thermostat
calls for refrigeration will the compressor relay be operated.
Running times
To prevent irregular operation, values can be set for the time the compressor is to run
once it has been started. And for how long it at least has to be stopped.
Min. ON-time (in minutes)
Min. OFF-time (in minutes)
EKC 414A Manual RS8CK502 © Danfoss 05-2005
r15 Sout %
r16 Meltinterval
r17 Melt period
NightSetback
OFF gives day operation
ON gives night operation
Alarm Settings
A03 Alarm delay
A04 Door Open del
A12 Pulldown del
A13 High Lim Air
A14 Low Lim Air
Reset alarm
The function resets all alarms when set
in pos. ON.
EKC error
Here you can read the alarm status.
Compressor control
c01 Min. On time
c02 Min. Off time
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