For exible control of refrigeration appliances and cold storage rooms.
AK-CC55 is a complete refrigeration appliance
control with great exibility to adapt to
refrigeration appliances and cold storage
rooms.
AK-CC55 Compact, Single Coil, and Multi Coil
controllers are optimized to control refrigerated
display cases or cold rooms with electronic
expansion valve type AKV. In addition to the
valve output, the controllers hold a pressure
input, temperature sensor inputs, digital inputs
as well as an analogue output and relay
outputs that can be applied to numerous
functionalities in a refrigeration system.
The temperature in the appliance is registered
by temperature sensors in the air ow before
the evaporator and after the evaporator. A
setting for thermostat, alarm thermostat and
display reading determines the inuence the
sensor values should have for the control
functions. Additional sensors can be used for
registration and alarming of the temperature
near the food items, registration of the
temperature of the evaporator and also as
defrosting sensors.
AI379338681319en-000201
Case/room controller (EEV), type AK-CC55
Features
• Universal controller for several dierent refrigeration appliances
• Quick set-up with predened settings
• Easy conguration and service using a mobile app with Bluetooth
• Energy optimization of the whole refrigeration appliance
• Adaptive Minimum Stable Superheat (MSS) control is performed with lowest possible superheat
• Allows the suction pressure to be raised several degrees
• Adaptive Liquid Control (ALC) can be performed with superheat down to 0 degrees on transcritical CO2 systems
with liquid ejectors
• Adaptive Defrost (AK-CC55 Single Coil only) that saves energy and increase food quality by only performing the
defrost needed to keep the evaporator ice free.
The AK-CC55 portfolio contains four controllers with dierent functionalities and application settings, as outlined in
the table.
For a complete breakdown on the individual controller and their functions, refer to the respective User Guide for the
controllers.
Table 1: AK-CC55 Portfolio
Product categories mentioned in the table are outlined in the next sections.
External display
There are three versions available with dierent functions.
• AK-UI55 Info: Temperature display.
• AK-UI55 Set: Temperature display with control buttons on the front.
• AK-UI55 Bluetooth: Temperature display with Bluetooth communication, for use with AK-CC Connect App.
Figure 1: AK-UI55 InfoFigure 2: AK-UI55 SetFigure 3: AK-UI55 Bluetooth
Data communication other than MODBUS
AK-CC55 has built-in MODBUS communication. For other types of data communication, an optional RS 485 Lon
module (AK-OB55) can be installed in AK-CC55 Single Coil and AK-CC55 Multi Coil controllers.
The KoolProg software enables you to perform online conguration and monitoring of AK-CC55 controllers as well
as oineconguration of setting les, which can be shared with the AK-CC55 Connect APP for mobile devices.
Furthermore, it allows you to make production line programming of controllers in an ecient way and to update
controller rmware.
KoolProg must be connected to the display port of an AK-CC55 controller via MMIMYK gateway:
Figure 5: Connection for AK-CC55 using interface type MMIMYK
Electric expansion valve, type AKV 10P, AKV 10PS
Figure 6: Type AKV 10P, AKV
10PS
AKV 10P and AKV10PS are electric operated expansion valves designed for refrigerating plants.
The AKV 10P and AKV 10PS valves are normally controlled by a controller from Danfoss range of ADAP- KOOL®
controllers, that ensures a precise liquid injection into evaporators.
The AKV 10P and AKV 10PS valves are supplied as a part program, as follows:
• Separate valve
• Separate coil with terminal box, DIN plug or cable
• Spare parts in the form upper part, orice and lter
The orice assembly is replaceable. The AKV 10P and AKV 10PS valves cover a wide capacity range.
Pressure transmitter, type AKS 32R and AKS 2050
Figure 7: Type AKS 32R and
AKS 2050
AKS 32R is a ratiometric pressure transmitter that converts the measured pressure to a linear output signal. The
output signal is relative to the supply voltage meaning that the min. pressure output will be 10% of the actual
supply voltage and the max. pressure output will be 90% of the actual supply voltage.
At a supply voltage of 5 V, the output signal is:
• 0.5 V at min pressure range
• 4.5 V at max. pressure range
The robust design and the ratiometric output signal makes the transmitter suitable for systems together with
ratiometric A/D converters within a number of elds:
• A/C systems
• Refrigeration plant
• CO2 plant
• Process control
• Laboratories
Pressure transmitter, type DST P110
Figure 8: Type DST P110
The Danfoss DST P110 series pressure transmitter is designed for demanding refrigeration, air conditioning and
industrial cooling applications, such as:
• Chillers
• Transport refrigeration
• Commercial refrigeration
• Variable speed HVAC
• Heat pumps
• Variable refrigerant ow (VRF)
Drawn from over 30 years of experience with MEMS pressure sensing, the DST P110 oers outstanding performance
in a compact and durable stainless-steel package.
Running a powerful ARM-based microcontroller, the DST P110 oers diagnostic features and scalable performance
features at a competitive price.
Colour coded temperature sensors, type AKS 11
Figure 9: Type AKS 11
Pt 1000 temperature sensor.
The sensor can be used for temperature monitoring and logging in conjunction with Danfoss controllers in the
following areas:
• Refrigeration
• Air conditioning
• Heating
The sensor comes adjusted and complies with the requirements to tolerance in EN 60751, class B.
AKS 32R info
The signal from one pressure transmitter can be received by up to 10 controllers. There must not be a signicant
pressure drop from the pressure transmitter's position in the suction line to the individual evaporators. Other
products can be part of the system as well, depending on application scope.
One valve, one evaporator, one refrigeration section
xxx
One valve, one evaporator, two refrigeration sections
x
One valve and two evaporators, two refrigeration sections
x
Two valves and two evaporators (same refrigeration section)
x
Three valves and three evaporators (same refrigeration section)
x
Custom
conguration of relay outputs
x
x
Two compressorsxx
Heating functionxx
Control of air humidity
x
x
Adaptive superheat
xxx
Adaptive liquid control
(zero superheat control for transcritical CO2 systems with liquid ejectors)
xxx
Adaptive defrosting
x
Product sensor
x
Oil recovery
x
RS485 Lon, option (AK-OB55)
x
x
Case/room controller (EEV), type AK-CC55
Functions
AK-CC55 has numerous functions, as listed below. For a complete breakdown on the individual controller and their
functions, refer to the respective User Guide for the controllers.
• Day/night thermostat with ON/OFF or modulating principle.
• Product sensor S6 with separate alarm limits.
• Switch between thermostat settings via digital input.
• Adaptive control of superheat.
• Adaptive liquid control
• Oil recovery (ushing oil back to condensing unit)
• Adaptive defrosting based on diagnostics.
• Start of defrost via schedule, digital input or network.
• Natural, electric or hot gas defrost.
• Stop of defrost on time and/or temperature.
• Coordination of defrosting among several controls.
• Pulsing or speed control of fans when thermostat is satised.
• Appliance cleaning function for documentation of HACCP procedure.
• Rail heat control via day/night load or dew point.
• Humidity control in cold storage rooms.
• Door function.
• Control of two compressors.
• Control of night blinds.
• Light control.
• Heat thermostat.
• High accuracy inputs:
◦ to guarantee a better measuring accuracy than stated in the standard EN ISO 23953-2 without subsequent
calibration (Pt1000 ohm sensor).
• Support of user-dened temp. sensor type
• Integrated MODBUS communication
◦ option: mounting a Lon communication card (AK-OB55).
AKA 245: LON unitsonly and max 250controller parameters
System Manager
Display Bus
Modbus
Modbus
LON/ TCP/IP (SNMP)
Modbus
LON/ TCP/IP (SNMP)
Bluetooth
AK-UI55 Bluetooth
AK-UI55 Set
AK-UI55 Info
Smart Device(iOS or Android)
AK-CC55 Connect
AK-CC55 Single Coil UI
AK-CC55 Multi Coil
AK-CC55 Compact
KoolProg
Case Controller
Danfoss
80G8333
Case/room controller (EEV), type AK-CC55
Connectivity
The diagram outlines the connectivity options presented by AK-CC55 for the design of system functionality.
Figure 10: Connectivity
User Interface
As shown in the connectivity visual, AK-CC55 can be operated in dierent ways. This chapter outlines some of the
options. For a complete breakdown on the individual controller and their operating procedures, refer to the
respective User Guide for the controllers.
The following options are available:
• Direct operation
◦ Menu button on relevant display.
◦ Smart phone/app with Bluetooth communication interface ("AK-CC55 Connect").
• Operated via data communication (MODBUS or Lon - Not Compact)
◦ Via system unit display, e.g. via AK-SM 800.
◦ Via system unit and Service Tool.
◦ Programming via interface MMIMYK and PC software type KoolProg®.
Figure 11: AK-UI55 Set display
with operation
• Newly developed display with 4 operating buttons, in grey thermoplastic material
• High-visibility LED display with white characters.
• As alternative, you can use AK-UI55 Info for information readout, or AK-UI55 Bluetooth with dedicated AK-CC55
Connect app.
• Cases with one valve, one evaporator and two refrigeration sections
• Cases with one valve, two evaporators and two refrigeration sections
• Cold rooms
An application setting congures inputs and outputs so that the controller operation interface reects the selected
application.
Some of the relay outputs are optional, i.e. users dene what the relay will be used for, e.g.:
• Controlling two compressors
• Controlling the night blind
• Controlling the heat function
• ECO operations of fans (only Compact/Single Coil)
Figure 12: Standard display case, upright or
normal, with one evaporator
Figure 13: Examples of display case congurations, with two refrigeration sections controlled by one AKV valve (only Single
Coil)
Figure 14: Cold room conguration with
door, light and heat control function
NOTE:
Temperature sensor positions are indicated with S followed by relevant number. Fans, air ows, night blinds, door
and heat functions are indicated by symbols.
Designed for TXV applications, for control of compressor or solenoid valve, alarm relay, lights and rail heat.
Application 5-9
Designed for EEV applications, for control of valves in the AKV family, compressor, alarm relay, light and rail heat.
Application 4
Can also be used as a user denedconguration with Thermostatic expansion valves (TXV), e.g.: Dual compressor operation, heat function,
night blind, ECO fan.
Application 9
Can also be used as a user denedconguration with Electric Expansion Valves (EEV), e.g.: Dual compressor operation, heat function, night
blind, ECO fan.
No.
Application description
DO1
DO2
DO3
DO4
AO1
AI1
AI2
AI3
AI4
AI5/ DI1
DI2
1
TXV appl.S3S4S52
TXV appl.S3S4S53
TXV appl.S3S4S54
TXV appl./ User def. cong.
User def.
User def.
User def.S3S4S55
EEV appl.PeS2S3S4S56
EEV appl.PeS2S3S4S57
EEV appl.PeS2S3S4S58
EEV appl.PeS2S3S4S59
EEV appl./ User def. cong.
User def.
User def.
User def.PeS2S3S4
S5
40
41
42
5V
s
AI1
43
44
AI2
45
46
AI3
47
48
AI4
49
50
AI5
51
52
AI6
53
54DI1/AI7*
60
61
DI2
70
71AO1*PWM
83
84
85
B
A
MODBUS
115 -230VAC
L
N
1
2
3
8
9
7
10
11
12
DO2
13
14
DO3
15
16
17
DO4
18
19
20
DO5
21
22
DO6
115-230V AC
30
31
DI3
Danfoss
84B3234
Case/room controller (EEV), type AK-CC55
Application options for AK-CC55 Compact
Upper and lower connection panels are laid out as shown in gure:
Figure 15: Electrical connections AK-CC55 Compact
AK-CC55 Compact is optimised for control of one evaporator plus dierent combinations of light, rail heat and alarm
relays. It has 9 dierent application options (Application 1 – Application 9) to control the functions of the input
and output relays.
Table 3: The controller covers the following nine applications
Pt1000
PTC1000
NTC5K
NTC10K
(All 3 must be of the same type)
Temperature measuring accuracy
Pt1000: -60 – 120 °C. ±0.5 K
PTC1000: -60 – 80 °C. ±0.5 K
NTC5K: -40 – 80 °C. ±1.0 K
NTC10K: -40 – 120 °C. ±1.0 K
Pt1000 sensor
specication
±0.3 K at 0 °C
±0.005 K per degree
Pe measuring
AKS 32R Ratiometric pressure transmitter: 10 – 90%
RH measuring (only Single/Multi Coil)
0 – 10 V
Ri > 10K ohm
Accuracy +/- 0,3% FS
Case/room controller (EEV), type AK-CC55
Product specication
Product identication
The controller is provided with labels from the factory, indicating a generic application. When selecting the required
application, specic labels are provided so that you can mount the relevant one.
The application number is indicated on the left-hand side of the labels. Use the label tting the selected application.
Some of the labels are applicable to multiple application options.
Figure 18: Labels used to indicate application number
Signal from dry contact functions
Requirements to contacts: Gold plating
Cable length must be max. 15 m
Use auxiliary relays when the cable is longer
Open loop: 12 V (SELV)
Contact 3.5 mA
Digital input
DI3 (only Single/Multi Coil)
115 V / 230 V AC
Solid state output
DO1 (for AKV coil)
(And DO3 and DO7 in Multi Coil)
115 V / 230 V AC
Max. 0.5 A
DO3 and DO7 (No overload protection)
Max. 1 x 20 W AKV for 115 V AC
2 x 20 W AKV for 230 V AC
NOTE:
2 EC coils are not supported
Relays
DO2
DO3
DO4
DO5
DO6
115 V / 230 V AC
Load max.: CE. 8 (6)A
UL. 8A res. 3FLA 18LRA
Load min.: 1VA
Inrush: DO2 DO3 for Compact
DO5 DO6 for Single/Multi Coil TV-5 80A
Analogue output/ PWM
AO1
0 / 10 V Pulse Width Modulated
(PWM) max. 15 mA.
0 – 10 V variable, max. 2 mA
Function data
Value
Display
LED 3 digit
External display, AK-CC55 Compact
1 external display
External display, AK-CC55 Single Coil UI
1 external display
External display, AK-CC55 Single Coil
2 external displays
External display, AK-CC55 Multi Coil
2 external displays
External display connection
RJ12
Max. display cable length [m]
100 m
Data communication built-in
MODBUS
Data communication option
AK-OB55 Lon RS485 module (Not AK-CC55 Compact)
Clock battery backup power reserve
4 days
Mounting
DIN rail
Environmental conditions
Value
Ambient temperature range, operation [°C]
0 – 55 °C
Ambient temperature range, transport [°C]
-40 – 70 °C
Enclosure rating IP
IP20
Relative humidity range [%]
20 – 80%, non-condensing
Shocks/Vibrations
No shocks and vibrations allowed
Case/room controller (EEV), type AK-CC55
Input and output relay specications
Table 13: Input and output relay specications
DO2, DO4, DO5 and DO6 are 16 A relays.
Max. load must be observed.
DO3 / DO4 for Compact and DO5 / DO6 for Single / Multi Coil is recommended for EC Fan and LED light.
All relays are sealed for use with ammable refrigerant like Propane R290.
Compliance with EN 60 335-2-89: 2010 Annex BB.
Case controller for one AKV valve
Integrated display with control buttons
084B4083
AK-CC55 Multi Coil
Case controller for one, two or three AKV valves
084B4084
AK-UI55 Info
External display
084B4077
AK-UI55 Bluetooth
External display with Bluetooth operation
084B4075
AK-UI55 Set
External display with control buttons
084B4076
AK-UI55 Mounting Base
Danfoss
80G8236
Mounting kit for display types: AK-UI55 Set, AK-UI55 Bluetooth, AK-UI55 Info
084B4099
AK-UI cable
External display cable with RJ12 connector. 3 m
084B4078
AK-UI cable
External display cable with RJ12 connector. 6 m
084B4079
AK-OB55 Lon
Data communication module Lon
Can be mounted in Single Coil and Multi Coil versions
084B4070
MMIMYK
Danfoss
80G8284
Gateway between AK-CC55 and PC installed with KoolProg software
080G0073
Case/room controller (EEV), type AK-CC55
Ordering
The list contains the components that make up an AK-CC55 setup. For other Danfoss products mentioned in the
document, such as sensors and valves, refer to relevant product documentation.
The list contains all certicates, declarations, and approvals for this product type. Individual code number may have
some or all of these approvals, and certain local approvals may not appear on the list.
Some approvals may change over time. You can check the most current status at danfoss.com or contact your local
Danfoss representative if you have any questions.
Table 18: Controller
Table 19: Display module
Table 20: Option module
Controllers/displays/option module:
CB certicate including all deviation according to IEC 60730-1 and 2-9
Changes or modications not expressly approved could void your authority to use this equipment This device
complies with Part 15 of the FCC Rules. Operation to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may
cause undesired operation.
INDUSTRY CANADA STATEMENT
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following
two conditions: (1) this device may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.
L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2)
l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible
d'en compromettre le fonctionnement.
oss oers a wide range of support along with our products, including digital product information, software,
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AK-CC55 Connect
Make service easy with the free AK-CC55 Connect app. Via a Danfoss Bluetooth display you can
connect to an AK-CC55 case controller and get a visual overview of the display functions. The app
ensures smooth interaction with a Danfoss AK-CC55 case controller in a user-friendly design.
Download the app here:
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