Injection Control - Danfoss AK-CC55 User Manual

AK-CC55 Single Coil and Single Coil UI
Function Description
Humidity sensor -
Min signal
Humidity sensor -
Max signal
Humidity ctrl. at de- Select how to control humidity during defrost:No: Hu-
frost midity control is stopped during defrostYes: Normal
humidity control is running during defrost
Humidity max. Maximum limit for thermostat air temperature in or-
temp. der for humidity control to run (frost limit)
Humidity min. temp. Minimum limit for thermostat air temperature in or-
der for humidity control to run (frost limit)

Injection control

Table 32: Injection control
Function Description
Control state A Readout of the actual control state of the controller
Thermostat air Thermostat temperature
temp. A
S3 Air ON evap. A Actual sensor value
S3 Air ON evap. B Actual sensor value
S4 Air OFF evap. A Actual sensor value
EEV opening A Actual status of output function
Liquid line solenoid Actual status of output function
Pe Evap. pressure Actual sensor signal
Te Evap. temp. Temperature converted from pressure
S2 Gas outlet A Actual sensor value
Superheat A Readout of actual superheat at the outlet of the evap-
orator
Superheat reference Readout of the actual superheat reference
A
Min. superheat limit Min. value for the superheat reference
Max. superheat limit Max. value for the superheat reference
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
the highest value that corresponds to OFF
AKV Period time Period time for the pulse width modulation
Min. superheat liq- Min. value for the superheat reference during adap-
uid ctrl A tive liquid control
Max. superheat liq- Max. value for the superheat reference during adap-
uid ctrl. A tive liquid control
LLSV closing delay Closing delay for liquid line solenoid valve
© Danfoss | Climate Solutions | 2021.02
Values
0=No, 1=Yes
Values
0=Normal ctrl., 1=Hold after defrost, 2=Min ON timer,
3=Min OFF timer, 4=Drip off, 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
0=OFF, 1=ON
Code Short name
h29 h29 RH Min Value
h30 h30 RH Max Value
h28 h28 RH CtrlAtDef
h32 h32 RH Max temp.
h33 h33 RH Min temp.
Code Short name
u00 u00 Ctrl. state
u17 u17 Ther. air
u12 u12 S3 air temp.
u76 u76 S3 airtemp B
u16 u16 S4 air temp.
u23 u23 EEV OD %
U95 U95 LLSV
u25 u25 EvapPress Pe
u26 u26 EvapTemp Te
u20 u20 S2 temp.
u21 u21 Superheat
u22 u22 SuperheatRef
n10 n10 Min SH
n09 n09 Max SH
n11 n11 MOP temp.
n13 n13 AKV Period
P87 P87 SH Min Liq.
P86 P86 SH Max Liq.
P92 P92 LLSV OFF del
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