Danfoss AK-CC55 Compact User Manual page 47

AK-CC55 Compact
Function Description
S4 Air OFF evap. A Actual sensor value
Night condition Status at the day-/night operation (night operation:
on/off)
Thermostat cutin Readout of the actual cutin value for the thermostat
temp.
Thermostat cutout Readout of the actual cut out value for the thermostat
temp.
Thermostat runtime Read the ongoing cutin time for the thermostat or the
A duration of the last completed cutin
Thermostat band Readout of which thermostat used for regulation: 1=
Thermostat band 12= Thermostat band 2
Air heater Actual status of output function
Thermostat mode Here it is defined how the thermostat is to operate. Ei-
ther as an ordinary ON/OFF thermostat or as a modu-
lating thermostat.When operation is "modulating" the
valve will limit the flow of refrigerant so that the tem-
perature variation will be less than for the ON/OFF
thermostat.The thermostat differential (r01) must not
be set lower than 2K for ""modulating"".In a decentral-
ised plant you must select the ON/OFF thermostat
setting."
Cutout 1 Set point. The thermostat's cutout value when the
given thermostat band is in use
Differential 1 When the temperature is higher than the set cutout +
the set differential, the compressor relay will be cut in.
It will cut out again when the temperature comes
down to the set cutout limit
Cutout 2 Set point. The thermostat's cutout value when the
given thermostat band is in use
Differential 2 When the temperature is higher than the set cutout +
the set differential, the compressor relay will be cutin.
It will cutout again when the temperature comes
down to the set cut-out limit
Max cutout limit Setpoint limitation - The controller's setting range for
the thermostat setpoint may be narrowed down, so
that much too high or much too low values are not
set accidentally - with resulting damages.To avoid a
too high setting of the setpoint, the max. allowable
reference value may be lowered
Min cutout limit Setpoint limitation - The controller's setting range for
the thermostat setpoint may be narrowed down, so
that much too high or much too low values are not
set accidentally - with resulting damages.To avoid a
too low setting of the setpoint, the min. allowable ref-
erence value may be increased
Thermostat sensor Selection of thermostat sensor. Here you define the
S4 % sensor 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 Selection of thermostat sensor S4% during night op-
S4 % night eration with night blinds. Here you define the sensor
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 offset Night setback value.The thermostat's reference will be
the setpoint plus this value when the controller
changes over to night operation.
S4 frost protection Frost protection on S4 air temperature. If the S4 tem-
perature sensors measures a temperature lower than
the set limit, refrigeration will be stopped in order to
protect produce from ice formation. Refrigeration will
start again when the S4 temperature has risen 2K
above the set limit
Air heater neutral Heat function. Set the width of the Neutral Zone for
zone changeover from cooling to heating "
© Danfoss | Climate Solutions | 2022.08
Values
0=OFF, 1=ON
1=Band 1, 2=Band 2
0=OFF, 1=ON
2=Modulating, 1=ON/OFF
Code Short name
u16 u16 S4 air temp.
u13 u13 Night Cond.
u90 u90 Cutin temp.
u91 u91 Cutout temp.
u18 u18 Ther runtime
u86 u86 Ther. band
u84 u84 Heat relay
r14 r14 Therm. mode
r00 r00 Cutout
r01 r01 Differential
r21 r21 Cutout 2
r93 r93 Diff Th2
r02 r02 Max cutout
r03 r03 Min cutout
r15 r15 Ther. S4 %
r61 r61 Ther.S4% Ngt
r13 r13 Night offset
r98 r98 S4 Min Lim
r62 r62 Heat NZ
BC365212986197en-000201 | 47