User Guide | Optyma™ control AK-RC 111 single phase
© Danfoss | DCS (vt) | 2020.03 BC309238530328en-000101 | 9
4.9 Level 2 programming
(installer level)
4.10 List of Level 2 variables
(installer level)
To access the second programming level press the UP () and DOWN () keys and the LIGHT key
simultaneously for a few seconds.
When the first programming variable appears the system automatically goes to stand-by.
1. Select the variable to be modified by pressing the UP () and DOWN () keys.
When the parameter has been selected it is possible to:
2. View the setting by pressing the SET key.
3. Modify the setting by holding the SET key down and pressing the () or () key.
4. When configuration settings have been completed you can exit the menu by pressing the () and
() keys simultaneously and keeping them pressed until the room temperature reappears.
5. Changes are saved automatically when you exit the configuration menu.
6. Press the STAND-BY key to enable electronic control.
Variables Meaning Value Default
F3 Fan status with compressor off 0 = Fans run continuously
1 = Fans only run when
compressor is working
2 = Fans disabled
1
F4 Fan pause during defrost 0 = Fans run during defrost
1 = Fans do not run during
defrost
1
F6 Evaporator fans activation for air recirculation.
The fans activate for a time defined by F7 if they have
not started working for the F6 time. If activation time
coincides with the defrosting time, end of defrosting
is awaited.
0 – 240 min
0 = (function not activated)
0 min
F7 Evaporator fans duration for air recirculation.
Fans working time for F6
0 – 240 sec 10 sec
dE Sensor presence
If the evaporator sensor is disabled defrosts are
carried out cyclically with period d0: defrosting ends
when an external device trips and closes the remote
defrost contact or when time d3 expires.
0 = evaporator sensor present
1 = no evaporator sensor
0
d1 Defrost type, cycle inversion (hot gas) or with heater
elements
0 = heating element
1 = hot gas
2 = heater with
temperature control
0
dPo Defrost at Power On 0 = disabled
1 = defrost at power-on
(if possible)
0
dSE Smart defrost 0 = disabled
1 = enabled
0
dSt Smart defrost Setpoint (if dSE=1)
The counting of the time between the defrost is
incremented only if the compressor is ON and the
evaporator temperature is less than dSt.
-30 – 30 °C 1 °C
dFd Display viewing during Defrost 0 = current temperature
1 = temperature at the
start of the defrost
2 = “DEF”
1
Ad
Modbus Network address 0 – 247 0
Bdr Modbus baudrate 0 = 300 baud
1 = 600 baud
2 = 1200 baud
3 = 2400 baud
4 = 4800 baud
5 = 9600 baud
6 = 14400 baud
7 = 19200 baud
8 = 38400 baud
8
Prt Modbus parity check 0 = none
1 = even
2 = odd
1
Ald Minimum and maximum temperature
signalling and alarm display delay
0 – 240 min 120 min
C1 Minimum time between shutdown and subsequent
switching on of the compressor.
0 – 15 min 0 min
CAL
Cold room sensor value correction -10 – 10 °C 0 °C
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