Danfoss AK-CC55 Compact - Application Set-Ups and IO Connections

AK-CC55 Compact is optimised for control of one evaporator plus dierent combinations of light, rail heat and alarm
relays.
It has 4 Digital Outputs (DO), known as DO1 – DO4, one Analogue Output (AO), known as AO1, 4 Analogue Inputs
(AI), known as AI1 – AI4, an input that can be used as either an AI5 or as a DI (Digital Input) DI1, and one Digital Input
(DI2).
It has 9 dierent application options (Application 1 – Application 9) to control the functions of the input and output
relays.
Table 7: Application with digital and analogue in/output specication
No.
Application description
DO1
DO2
DO3
DO4
AO1
AI1
AI2
AI3
AI4
AI5/ DI1
DI2
1
TXV appl.
S3
S4
S5
2
TXV appl.
S3
S4
S5
3
TXV appl.
S3
S4
S5
4
TXV appl./ User def. cong.
User def.
User def.
User def.
S3
S4
S5
5
EEV appl.
Pe
S2
S3
S4
S5
6
EEV appl.
Pe
S2
S3
S4
S5
7
EEV appl.
Pe
S2
S3
S4
S5
8
EEV appl.
Pe
S2
S3
S4
S5
9
EEV appl./ User def. cong.
User def.
User def.
User def.
Pe
S2
S3
S4
S5
= Optional use
Table 8: Sensor description
Pe
Evaporating pressure
S2
Gas outlet of evaporator
S3
Return air temperature
S4
Discharge air temperature
S5
Evaporator temperature
Application set-ups and IO connections
AK-CC55 Compact is designed for control of one evaporator + dierent combinations of light, rail heat and alarm
relays.
The most important variations are:
Applications 1-4: TEV applications
Control of compressor or solenoid valve, alarm relay, lights, rail heat
Application 4: Congurable outputs, e.g.: Dual compressor operation, heat function, night blind, ECO fan
Applications 5-9: EEV applications
Control of AKV valve, compressor, alarm relay, light, rail heat.
9: Congurable outputs, e.g.: Dual compressor operation, heat function, night blind, ECO fan
© Danfoss | Climate Solutions | 2022.08 BC365212986197en-000201 | 25
AK-CC55 Compact