Front-end support and backwards compatibility .................................................................................................
The AK-CC55 is designed to replace AK-CC 4xx / 5xx. The document describes important details to
be aware of when replacing an AK-CC 450, 525 and 550, and compatibility with Danfoss System
Managers.
Fact Sheet | AK-CC55 case controller compatibility
84B3234
2.1 AK-CC550A vs
AK-CC55 Single Coil –
application mapping
Main remarks regarding compatibility of AK-CC 550A and AK-CC55 are highlighted in the table.
Furthermore important differences are marked with red in the application overviews.
AK-CC 550AAK-CC55 Single CoilAK-CC55 remarks
Application: 1,2,3,4 Use application 1,2,3,4
Application: 5, 7, 8Use Application 9
Application 6Use application 5
Application 9Use application 7
Identical functions (be aware of differences in electrical
connections)
Use custom setup where relay 2 to 6 can be custom defined for
2’nd compressor, blinds, heat etc.
A separate output has been defined for Drain valve - use Suction
relay also for drain heater.
Alarm output included. PWM (0/10 Volt) output and external SSR
relay used for smooth control of rail heat. DI1 configured for S5b
Application 10Use application 6Two remote displays can be connected via RJ 12 connectors.
NAApplication 8
New application to activate an external humidifier via DO3. DI1
configured for 0 – 10 V input for HR% sensor.
Fact Sheet | AK-CC55 case controller compatibility
84B3234
2.2 AK-CC550B vs
AK-CC55 Single Coil –
Application mapping
Main remarks regarding compatibility of AK-CC 550B and AK-CC55 are highlighted in the table.
Furthermore important differences are marked with red in the application overviews.
AK-CC 550BAK-CC55 Single CoilAK-CC55 remarks
Application: 1,2,3,4 Use application 1,2,3,4
Application: 5, 7, 8Use Application 9
Application 6Use application 5
Application 9Use application 7
Application 10Use application 6
NAApplication 8
Identical functions (be aware of differences in electrical
connections)
Use custom setup where relay 2 to 6 can be custom defined for
2nd compressor, blinds, heat etc.
A separate output has been defined for Drain valve - use Suction
relay also for drain heater.
Alarm output included. PWM (0/10 Volt) output and external SSR
relay used for smooth control of rail heat. DI1 configured for S5b
Two remote displays can be connected via RJ 12 connectors. No
S6 sensor.
New application to activate an external humidifier via DO3. DI1
configured for 0 – 10 V input for HR% sensor.
Fact Sheet | AK-CC55 case controller compatibility
2.3 Attention when replacing
AK-CC 550 with AK-CC55!
Be aware when exchanging an AK-CC550 controller with a new AK-CC55 controller - new wiring
principles!
AK-CC 550AK-CC 55
• Pressure sensor has new connection – signal
and ground are switched
• SPDT relays have a new wiring scheme – NO
and NC terminals are switched (e.g. defrost
heater on when should be off)
C NC NO
C NC NO
• Modbus has new connection scheme (A,B and
screen)
2.4 AK-CC55 Case Controllers
2.5 AK-CC55 Accessories
AK-CC55 does not support two EEC coils connected to one AKV output.
Pressure transmitter can be shared between AK-CC 550 and AK-CC55.
DI2 defrost coordination can be wired between AK-CC 550 and AK-CC55.
EKA displays and cables can not be used for AK-CC55.
TypeFunctionPackingQty.Code no.
AK-CC55 Compact Case controller with one AKV or solenoid valveS/M-Pack10084B4081
AK-CC55 Single CoilCase controller with one AKV valveS/M-Pack10084B4082
AK-CC55 Single Coil UI
AK-CC55 Multi CoilCase controller with one, two or three AKV valves S/M-Pack10084B4084
Case controller with one AKV valve integrated
display with control buttons
S/M-Pack10084B4083
User Interface, option board and connection bags.
TypeFunctionPackingQty.Code no.
AK-UI55 Bluetooth Bluetooth DisplayS/M-Pack30084B4075
CompactSupported via built in Modbus only. No option for LON
Single CoilSupported via built in RS485 Modbus or RS 485 Lon via optional module.
Single Coil UISupported via built in RS485 Modbus or RS 485 Lon via optional module.
Multi CoilSupported via built in RS485 Modbus or RS 485 Lon via optional module.
• Newest versions of AK-SM 350 support max 300 parameters and 60 alarms per controller
• Use template editor to create local views
RS 485 Danbuss
AK-CC55 versionAK-CC55 remarks
CompactNot supported - No option for LON
Single CoilRS 485 Lon support only via optional module.
Single Coil UIRS 485 Lon support only via optional module.
Multi CoilRS 485 Lon support only via optional module.
• Max. 250 parameters are supported (if more than 250 controller parameters or 50 alarms the last
parameters/alarms will not be vissible in AKA 245 / AKM)