1.
2.
EKC 223
Table 4: The electrical wiring diagrams for the selection of 4 applications
Application
Wiring diagrams
1.
DO1
1
Sair
S5 Sc/DI1
DI2
DO2
DO3
GND
GND
Danf
oss
80G8436
5
6
7
3L
4N
10
11
12
13
14
8
9
2L
115/
230 V
115/
230 V
2.
DO1
1
Sair
S5 Sc/DI1
DI2
DO2
DO3
GND
GND
Danf
oss
80G8437
5
6
7
3L
4N
10
11
12
13
14
8
9
2L
115/
230 V
115/
230 V
3.
DO1
1
Sair
S5 Sc/DI1
DI2
DO2
DO3
GND
GND
Danf
oss
80G8438
5
6
7
3L
4N
10
11
12
13
14
8
9
2L
115/
230 V
115/
230 V
4.
DO1
1
Sair
S5
DI1
DI2
DO2
DO3
GND
GND
Danf
oss
80G8439
5
6
7
3L
4N
10
11
12
13
14
8
9
2L
115/
230 V
115/
230 V
NOTE:
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
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
2
, max. tightening torque = 0.4 Nm
◦
Low voltage signal connectors: wire size = 0.15 – 1.5 mm
2
, max. tightening torque = 0.2 Nm
◦
2L and 3L must be connected to the same phase
Electrical connections
Table 5: Connection details
Name
Terminals
Description
Power supply
3L – 4N
115 V AC / 230 V AC / 50/60 Hz (refer to the controller label)
AI1-AI2
9, 10, 11
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.
DI1
12,13
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
DI2
13,14
Digital input signal
The defined function is active when the input is short-circuited or opened, depending on the function defined in o37.
© Danfoss | Climate Solutions | 2023.05
BC432222569027en-000201 | 13
Case controller, type EKC 223 and EKC 224