Technical information
Vent 402 – 6721815546 (2021/03)
37
12.11.3 400V, 3N~ 50 Hz 12 kW
Fig. 48 Wiring diagram main circuit, 400 V 3N 12 kW
[1]
Immersion heater alarm
[2]
~ 230 V control voltage
[3]
Immersion heater: 3-9-12 kW
[EE] Booster heater
[ER1] Compressor
[FE] Overheating protection of immersion heater
[K1] Contactor power step 1 (EE1)
[K2] Contactor power step 2 (EE2)
[K3] Relay start compressor
11
12
21
22
31
32
2
FE
S
R
N
M
ER1
Cr
K3
L1
L2
L3
N
2L2
400V 3N
~
PE
EE
3 kW
9 kW
1
35
Ω
18
Ω
(2x1,5kW)
(3x3kW)
K1
K2
K1
1
2
3
4
5
6
13
14
1
2
3
4
5
6
13
14
L1
L2
L3
3
0010030320-004