Thermostat control
Table 29: Thermostat control
Readout of the actual control state of the controller
0=Normal ctrl., 1=Hold after defrost, 2=Min ON timer,
3=Min OFF timer, 4=Drip o, 10=Main switch OFF,
11=Thermostat cut-out, 12=Frost protection S4,
13=Not_used, 14=Defrost, 15=Fan delay, 17=Door
open, 18=Melt period, 19=Modulating temp. control,
20=Emergency control, 23=Adaptive superheat con-
trol, 24=Start injection, 25=Manual control, 26=No re-
frigerant selected, 16=Forced closing, 29=Case clean-
ing, 30=Forced cooling, 31=Door open, 32=Power-up
delay, 33=Air heating, 45=Shut down controller,
48=Adaptive liquid control
Readout of food temperature
Status of the day/night operation (night operation:
on/o)
Readout of the actual cut-in value for the thermostat
Readout of the actual cut-out value for the thermo-
stat
Read the ongoing cut-in time for the thermostat or
the duration of the last completed cut-in
Readout of which thermostat is used for regula-
tion:1= Thermostat band 12= Thermostat band 2
Actual status of output function
Here it is dened how the thermostat is to be operat-
ed. Either as an ordinary ON/OFF thermostat or as a
modulating thermostat.When operation is ”modulat-
ing” the valve will limit the ow of refrigerant so that
the temperature variation will be less than for the
ON/OFF thermostat.The thermostat dierential (r01)
must not be set lower than 2K for ""modulating"".In a
decentralised plant you must select the ON/OFF ther-
mostat setting."
Setpoint. The thermostat’s cut-out value when the
given thermostat band is in use
Setpoint. The thermostat’s cut-out value when the
given thermostat band is in use
When the temperature is higher than the set cut-out
+ the set dierential, the compressor relay will be cut-
in. It will cut-out again when the temperature comes
down to the set cut-out limit
Setpoint limitation - The controller’s setting range for
the thermostat setpoint may be narrowed down, so
that too high or too low values are not set accidental-
ly - with resulting damages.To avoid a too high set-
ting of the setpoint, the max. allowable reference val-
ue may be lowered
Setpoint limitation - The controller’s setting range for
the thermostat setpoint may be narrowed down, so
that too high or too low values are not set accidental-
ly - with resulting damages.To avoid a too low setting
of the setpoint, the min. allowable reference value
may be increased
Selection of thermostat sensor. Here you dene the
sensor that the thermostat is to use for its control
function. S3, S4, or a combination of them. With the
setting 0%, only S3 is used. With 100%, only S4.
Thermostat sensor
S4 % night
Selection of thermostat sensor S4% during night op-
eration with night blinds. Here you dene the sensor
that the thermostat is to use for its control function.
S3, S4, or a combination of them. With the setting 0%,
only S3 is used. With 100%, only S4.
Night setback value.The thermostat’s reference will
be the setpoint plus this value when the controller
changes over to night operation.
AK-CC55 Single Coil and Single Coil UI
© Danfoss | Climate Solutions | 2021.02 BC364229688105en-000101 | 50
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