Danfoss AK-CC55 User Manual page 51

User Guide | Controller for appliance control, AK-CC55
Delay of fan start after defrost
Here you set the time that is to elapse from compressor start after a defrost and until
the fan may start again. (The time when water is "tied" to the evaporator).
Fan start temperature
The fan may also be started a little earlier than mentioned under "Delay of fan start
after defrost", if the defrost sensor S5 registers a lower value than the one set here.
Fan cut-in during defrost
Here you can set whether fan is to operate during defrost.
0: Stopped (runs during pump down)
1: Running (stopped during "fan delay")
2: Running during pump down and defrost. After that stopped.
3: Running, but stops at the set d41 temperature
Defrost sensor
Here you define the defrost sensor.
0: None, defrost is based on time
1: S5
2: S4
Pumpdown delay
Set the time where the evaporator is emptied of refrigerant prior to the defrost.
Drain delay (only in connection with hot gas)
Set the time where the evaporator is emptied of condensed refrigerant after 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.
Adaptive defrosting
An adaptive defrosting is an extra defrost in addition to the scheduled defrosts or a
cancellation of a scheduled defrost.
Here the adaptive defrost is set for when it can come into operation if the need arises:
0: Never,
1: Never, but triggers an alarm in the case of icing up
2: Cancellation of day schedule is permitted. Night schedule is carried out.
3: Cancellation of day schedule is permitted. Cancellation of night schedule is
permitted.
4: All schedules are carried out + extra if it is registered that it is required.
(Reset: Temporary setting to 0 will reset the recorded values and start a new
calculation of the evaporator airflow.)
Time delay before opening of hot gas valve, so a PMLX valve can close.
Rail heat during defrost
0: Off
1: On
2: Pulsating
Max. duration of -d- in the display
Controls the readout of "-d-" after defrost, thus "-d-" is shown until the temperature is
OK, set delay has expired, or a temperature alarm will occur.
The delay time starts when the fan delay time has expired.
Fan stop temperature during defrosting
When the defrost stop temperature reaches the set value, the fans will stop. (If d09 is
set to 3.)
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
seconds.
You can stop an ongoing defrost in the same way
© Danfoss | DCS (vt) | 2019.09
d07 FanStartDel
d08 FanStartTemp
d09 FanDuringDef
d10 DefStopSens.
d16 Pump dwn del.
d17 Drain del
d18 MaxTherRunT
d21 AD mode
d23 HotGasInjDel
d27 Railh. at def.
d40 Disp. d del.
d41 Def fan stop
Defrost temp.
Def Start
Here you can start a manual defrost
Def. stop
Here you can stop any ongoing
defrost.
Hold After Def
Shows ON when the controller is
operating with coordinated defrost.
BC308437742037en-000101 | 51