Danfoss EKC 223, User Manual, Page: 11 / 38

Applications
EKC 223 and 224 are developed for refrigerated plug-in cabinets with one compressor or for remote cabinets
controlling the liquid line solenoid valve. 3 sensors can be connected; Sair, S5 (Defrost termination), and Sc
(Condenser temperature).
The configuration of the relays is done via the parameter “o61 Application mode”
The Table 1 and Table 2 shows the application modes for EKC 224 and 223 respectively.
EKC 224 applications
Table 1: EKC 224 applications
o61 Applications DO1 DO2 DO3 DO4 AI1 AI2 DI1
(1)
DI2
(1)
1 MT/LT, electrical defrost, light Sair S5 DI1/Sc DI2
2 MT/LT, electrical defrost, alarm Sair S5 DI1/Sc DI2
3 MT, natural defrost, light, alarm Sair S5 DI1/Sc DI2
4 Heating thermostat Sair S5 DI1 DI2
(1)
The digital inputs DI1 and DI2 can be configured for multiple functions and DI1 can also be configured for a condenser temperature sensor Sc.
(1)
The digital inputs DI1 and DI2 can be configured for multiple functions and DI1 can also be configured for a condenser temperature sensor Sc.
EKC 223 applications
Table 2: EKC 223 applications
o61 Applications DO1 DO2 DO3 AI1 AI2 DI1
(1)
DI2
(1)
1 MT/LT, electrical defrost Sair S5 DI1/Sc DI2
2 MT, natural defrost, light Sair S5 DI1/Sc DI2
3 MT, natural defrost, alarm Sair S5 DI1/Sc DI2
4 Heating thermostat Sair S5 DI1 DI2
(1)
The digital inputs DI1 and DI2 can be configured for multiple functions and DI1 can also be configured for a condenser temperature sensor Sc.
(1)
The digital inputs DI1 and DI2 can be configured for multiple functions and DI1 can also be configured for a condenser temperature sensor Sc.
© Danfoss | Climate Solutions | 2023.05 BC432222569027en-000201 | 11
Case controller, type EKC 223 and EKC 224