Danfoss AK-CC55 Compact - Injection Control; Defrost Control

Injection control
Table 27: Injection control
Function
Description
Values
Code
Short name
Control state A
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,
14=Defrost, 15=Fan delay, 16=Forced closing,
17=Door open, 18=Melt period, 19=Modulating
temp. control, 20=Emergency control, 23=Adaptive
superheat control, 24=Start injection, 25=Manual
control, 26=No refrigerant selected, 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
u00
u00 Ctrl. state
Thermostat air
temp. A
Thermostat temperature
u17
u17 Ther. air
S3 Air ON evap. A
Actual sensor value
u12
u12 S3 air temp.
S4 Air OFF evap. A
Actual sensor value
u16
u16 S4 air temp.
EEV opening A
Actual status of output function
u23
u23 EEV OD %
Pe Evap. pressure
Actual sensor signal
u25
u25 EvapPress Pe
Te Evap. temp.
Temperature converted from pressure
u26
u26 EvapTemp Te
S2 Gas outlet A
Actual sensor value
u20
u20 S2 temp.
Superheat A
Readout of actual superheat at the outlet of the evap-
orator
u21
u21 Superheat
Superheat reference
A
Read out of the actual superheat reference
u22
u22 SuperheatRef
Brine valve opening
Actual status of output function
U02
U02 PWM OD %
Min superheat limit
Min. value for the superheat reference
n10
n10 Min SH
Max superheat limit
Max. value for the superheat reference
n09
n09 Max SH
MOP temperature
MOP temperature. The valve opening degree is re-
duced until the evaporating temperature reaches the
set MOP limit. If no MOP function is required, select
highest value, which corresponds to OFF
n11
n11 MOP temp.
AKV Period time
Period time for the pulse width modulation
n13
n13 AKV Period
Min superheat liq-
uid ctrl
Min. value for the superheat reference during adap-
tive liquid control
P87
P87 SH Min Liq.
Max superheat liq-
uid ctrl.
Max. value for the superheat reference during adap-
tive liquid control
P86
P86 SH Max Liq.
Brine valve - Period
time
Period time for the pulse width modulation
n63
n63 Pwm Period
Brine valve max OD
Expert setting - please contact Danfoss for further in-
fo
n64
n64 Pwm Max. OD
Brine valve min OD
Expert setting - please contact Danfoss for further in-
fo
n65
n65 Pwm Min. OD
Brine valve windup
Expert setting - please contact Danfoss for further in-
fo
n66
n66 PwmWindUp-
Fac
Brine valve Kp
Expert setting - please contact Danfoss for further in-
fo
n67
n67 Pwm Kp fact.
Brine valve Tn
Expert setting - please contact Danfoss for further in-
fo
n68
n68 Pwm Tn sec
Defrost control
Table 28: Defrost control
Function
Description
Values
Code
Short name
Control state A
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,
14=Defrost, 15=Fan delay, 16=Forced closing,
17=Door open, 18=Melt period, 19=Modulating
temp. control, 20=Emergency control, 23=Adaptive
superheat control, 24=Start injection, 25=Manual
control, 26=No refrigerant selected, 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
u00
u00 Ctrl. state
Defrost sensor tem-
perature A
Actual temperature of selected defrost stop sensor
U73
U73 Def.StopTemp
S5 Evaporator A
Actual sensor value
u09
u09 S5 temp.
© Danfoss | Climate Solutions | 2022.08 BC365212986197en-000201 | 49
AK-CC55 Compact