Fan - Danfoss EKC 223 User Manual

Case controller, type EKC 223 and EKC 224
Code Text on network
d05 d05 Time Stagg
d06 d06 DripOff time
d07 d07 FanStartDel
d08 d08 FanStartTemp
d09 d09 FanDuringDef
d10 (1) d10 DefStopSens.
d18 d18 MaxTherRunT.
d19 d19 Cutout S5Dif
d30 d30 Pd Def Delay
dA1 --- Def. Start
dA2 --- HoldAfterDef
dA3 --- DefrostState
(1) (1)
This menu can only be set when regulation is stopped, i.e. "r12" is set to 0. This menu can only be set when regulation is stopped, i.e. "r12" is set to 0.

Fan

Table 16: Fan
Code Text on network
F-- Fan
F01 F01 Fan Stop CO
F04 F04 FanStop temp
F07 F07 Fan ON
F08 F08 Fan OFF
© Danfoss | Climate Solutions | 2023.05
Description
Time staggering for defrost cut-ins during start-up
The function is only relevant if you have several refrigeration appliances or groups where you want the defrost to be stag-
gered in relation to one another. The function is furthermore only relevant if you have chosen defrost with interval start
(d03).
The function delays the interval time d03 by the set number of minutes, but it only does it once, and this at the very first
defrost taking place after voltage is connected to the controller. The function will be active after each and every power
failure.
Drip-off 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
off 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
This parameter is used to define whether fan is to operate during defrost or not
Defrost sensor
This parameter is to define which sensor has to be used to exit/terminate the defrost.
• (0) non = none, defrost is based on time set in do4
• (1) Air = Sair sensor
• (2) dEF = S5 (defrost) sensor
Compressor accumulated runtime to start defrost
When the accumulated compressor runtime is equal to the value set in this Parameter, defrost will be triggered. If the com-
pressor runtime is less than the set value during the define defrost interval "d03", defrost will be triggered based on the
defrost interval "d03". This feature is disabled when this parameter is set to zero.
Defrost on demand – S5 temperature
The controller will follow the effectivity of the evaporator, and via internal calculations and measurements of the S5 tem-
perature 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 disabled. With setting = 20 the function is disa-
bled.
Defrost delay after pull down
This parameter defines the time delay to start the defrost after pull down cycle. This has to ensure defrost doesn't happen
immediately after pull down cycle.
Defrost start
Parameter used by the network system manager to initiate a scheduled defrost cycle. Only used on Modbus datacommuni-
cation.
Hold after defrost
Parameter used by the network system manager to coordinate the defrost cycle among multiple controllers. Only used on
Modbus datacommunication.
Defrost state
Parameter used by the network system manager to coordinate the defrost cycle among multiple controllers. Only used on
Modbus datacommunication.
Description
Fan at compressor cut-out
This parameter define the fan operation during compressor OFF cycle.
• (0) FFC = fan follow compressor
• (1) Fao = fan always ON
• (2) FPL = fan Pulsating
Fan stop temperature
The function stops the fans in an error situation, so that they will not provide power 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 set-
ting. The function is not active during a defrost or start-up after a defrost. With setting +50°C the function is disabled.
Fan ON cycle
This parameter is applicable only when the Fan at Compressor cut out "F01" is set to Fan Pulsating mode. The Fan pulsating
ON time will be as per the time set in this parameter.
Fan OFF cycle
This parameter is applicable only when the Fan at Compressor cut out "F01" is set to Fan Pulsating mode. The Fan pulsating
OFF time will be as per the time set in this parameter.
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