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Värmebaronen EP 26E and EP 42E
Wiring diagram - EP 42 E
1. Power cable connection.
2. 230V ~, to external unit.
3. Circulation pump connection, 230V~.
4. External alarm indicator connection, 230V ~.
5. Connection current transformers.
6. Optional room unit connection.
7. Outside temperature sensor/alternative temperature
connection.
8. Blocking, voltage/current control, limitation/Output control,
0-10V of connected output
9. Boiler temperature sensor.
10. Circuit board, power
11. Circuit board panel with overlay.
12. Control switch.
13. EMI filter
14. Control fuse, 6A.
15. Overheating protection, output groups one and two.
16. Overheating protection half output group three.
17. Overheating protection half output group three.
18. Contactor, output group two.
19. Contactor, output group three.
20. Immersion heater, output group one, 6 kW.
21. Immersion heater, output group two, 12 kW.
22. immersion heaters output group three, 2 x 12 kW.
23. Neutral base.
T3
T2
T1
L3
L2
L1
U
V
W
RE1
RE2
K2
11
21
31
12
22
24 32
L1
L2
L3
T1
T2
T3
K1
K2
A1
A2
N
N
F
CP
2
1
RE1
RE2
ALARM
C-PUMP
N
(clean)
3
2
4
1
1
2 3
4
5
1
2
4
1 2 3 4
3
K1
A1
A2
Line
Load
N
N
(clean)
N
(clean)
N
(clean)
N
N
6A
11
21
31
12
22
24 32
11
21
31
12
22
24 32
A
m
A
m
V
m
V
m
N
1
19
21
18
20
11
2
3
4
5
6
7
8
9
10
13
12
14
15
16
17
22
23
19
18
Shut off the power before doing anything
inside the boiler!
