Danfoss AK-CC 460 User Manual page 14

User Guide | Controller for SemiPlugin appliance, AK-CC 460
Defrost sensor
Here you define the defrost sensor.
0: None, defrost is based on time
1: S5
2: S4
3: S5 + S6
Pumpdown delay
Set the time where the evaporator is emptied of refrigerant prior to the defrost.
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.
Define rail heat during defrost:
0: Off
1: On
2: Pulsing
Max. duration of -d- on the display
Controls the display of "-d-" after defrosting so that "-d-" is displayed until the temperature
is okay, the delay in question has expired, or a temperature alarm has been delivered.
If you wish to see the temperature at the defrost sensor, push the controller's lowermost
button. (May be changed to another function in o92.)
If you wish to start an extra defrost, push the controller's lowermost button for four sec-
onds.
You can stop an ongoing defrost in the same way
Fan
Fan stop temperature
The function stops the fans in an error situation, so that they will not provide heat to the
appliance. 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.
Pulse operation of fan
0: No pulse operation
1: Pulse operation when the thermostat does not call for refrigeration
2: Pulse operation when the thermostat does not call for refrigeration, but only during
night operation
Pulse operation period for fan
Here the overall pulse time is set. The sum of ON-to and OFF time.
ON time for fan
Here the % part of the period the fans are to be in operation is set.
The LED on the controller's front will indicate whether a defrost is going on.
Internal defrosting schedule/clock function
(Not used if an external defrosting schedule is used via data communication.)
Up to six individual times can be set for the defrost start throughout the day.
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.
Real-time clock::
Setting the clock is only necessary when there is no data communication.
In the event of a power failure of less than four hours, the clock function will be saved.
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d10 DefStopSens.
d16 Pump dwn del.
d18 MaxTherRunT
d27 Railh. at def.
d40 Disp. d del.
Defrost temp.
Def Start
Here you can start a manual defrost
Hold After Def
Shows ON when the controller is
operating with coordinated defrost via
data communication.
Disable def.
Defrost in progress can be stopped
Defrost State
Status on defrost
1= shows ongoing defrost
Fan control
F04 FanStopTemp.
F05 FanPulseMode
F06 Fan cycle
F07 Fan ON %
Fan Relay
Here you can read the fan relay status,
or force-control the relay in "Manual
control" mode.
t01-t06
t11-t16
© Danfoss | DCS (vt) | 2019.12