Ekc 223; Electrical Connections - Danfoss EKC 223 User Manual

Case controller, type EKC 223 and EKC 224

EKC 223

Table 4: The electrical wiring diagrams for the selection of 4 applications
Application
1.
2.
3.
4.
 NOTE:
1. Cables for sensors, DI inputs and data communication must be kept separate from other high voltage cables to
avoid electric noises.
◦ Use separate cable trays
◦ Keep a distance between cables of at least 10 cm
◦ Long cables at the DI input should be avoided
2. Do not use excessive force while securing wires in to the connectors, allowed tightening torque and wire sizes
are:
◦ Power connectors: wire size = 0.5 – 1.5 mm
◦ Low voltage signal connectors: wire size = 0.15 – 1.5 mm
◦ 2L and 3L must be connected to the same phase

Electrical connections

Table 5: Connection details
Name Terminals
Power supply 3L – 4N
AI1-AI2 9, 10, 11
DI1 12,13
DI2 13,14
© Danfoss | Climate Solutions | 2023.05
DO2
DO1
1 2L 3L 4N 5
115/ 115/
230 V 230 V
DO2
DO1
1 5
2L 3L 4N
115/ 115/
230 V 230 V
DO2
DO1
1 2L 3L 4N 5
115/ 115/
230 V 230 V
DO2
DO1
1 2L 3L 4N 5
115/ 115/
230 V 230 V
2 , max. tightening torque = 0.4 Nm
Description
115 V AC / 230 V AC / 50/60 Hz (refer to the controller label)
Temperature sensor inputs:
• Sair, Air temperature sensor
• S5 Evaporator sensor
Sensor types:
Pt 1000 (AKS11), PTC 1000 (EKS111), NTC5K (EKS211), NTC10K (EKS221).
All sensors must be of the same type.
Digital input signal
The defined function is active when the input is short-circuited or opened, depending on the function defined in o02.
Note: DI1 can also be used for a Sc Condenser sensor
Digital input signal
The defined function is active when the input is short-circuited or opened, depending on the function defined in o37.
Wiring diagrams
DO3
GND
6 7 8 9
Sair
DO3
GND
7
6 8 9
Sair
DO3
GND
6 7 8 9
Sair
DO3
GND
6 7 8 9
Sair
2 , max. tightening torque = 0.2 Nm
GND
10 11 12 13 14
S5 Sc/DI1 DI2
GND
11 14
10 12 13
S5 Sc/DI1 DI2
GND
10 11 12 13 14
S5 Sc/DI1 DI2
GND
10 11 12 13 14
S5 DI1 DI2
BC432222569027en-000201 | 13