Hussmann RDI-27 Installation & Operation Manual page 40

Drip-o time
Here you set the time that is to elapse from a defrost and until the compressor is to
start again. (The time when water drips o the evaporator).
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
Defrost sensor
Here you de ne 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 hotgas)
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.
Defrost on demand – S5 temperature
The controller will follow the e ectivity of the evaporator, and via internal calcula-
tions 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
Delay of the hot gas injection
Can be used when vales of the type PMLX and GPLX are used. Time is set so that the
valve is closed completely before the hot gas is turned on.
If you wish to see the temperature at the defrost sensor, push the controller's lower-
most 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
The LED on the controller's front will indicate whether a defrost is going on.
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.
AK-CC 210 Manual RS8EP502 © Danfoss
40
d06 DripO time
d07 FanStartDel
d08 FanStartTemp
d09 FanDuringDef
d10 DefStopSens.
d16 Pump dwn del.
d17 Drain del
d18 MaxTherRunT
d19 CutoutS5Dif.
d23 --
Defrost temp.
Def Start
Here you can start a manual defrost
Defrost Relay
Here you can read the defrost relay
status or you can force-control the
relay in "Manual control" mode.
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
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