Stiebel Eltron ETW 120 Notice D'utilisation Et De Montage page 23

B2 R1
X20 X23
A2
X25
X17 X16
V4
X14 - X15
X11 X12
A1
X13
R1
B1
TA N
LE` LH LH` LE
+ -
X3
1
DC
Aufladesteuerung
Kleinspannungs-System
Wiring diagram
A1 Elektronic charge regulator
A4 Operating panel electronics
Brick sensor-charge (at 20 ºC ≈ 541 Ω)
B1
E1-E6 Heater element
F1 Safety thermal cut-out
F2 Microfuse (250V 2A slow)
K1
Thermal relays
M1-M2 Blower fan
N4 Protective temperature regulator - charge
N5 Protective temperature regulator -
discharge
R1
Adjustor - charge 10 kΩ (Selector switch)
V4 Control lamps fornormal and emergency
operation
X1 Main connection terminals
X2
Terminal
X3 DC-Terminal (0,9 - 1,43 V)
X16 Control signal adapter, 4-stage
X17 Output reducer, 4-stage
A4
1
R2
L
S2
5
N4
X21
X22
K1
4 N 1
X2
L-
A1
N N N N L
SH
Z1
AC
Aufladesteuerung
230 V-System
E5
E3
E1
M3
M2
M1
F2
N5
3
2
A2 L LE 3 2
N
Z2
1/N/PE 230V
Special accessories
(does not form part of the scope of supply at
installation, mark the invidual special accessory with
a cross in each case)
RTI-E3
A2 Elektronic discharge regulator
B2 Room temperature sensor - discharge
(at 20 ºC ≈ 27,1 kΩ)
R2
Adjustor - discharge 10 kΩ
S2 ON/OFF-switch for room temperature
sensor
X25 Internal connection lead A1-A2
Supplementary heating
E8 Supplementary heating element
N2 Temperatur regulator Supplementary heating
N3
Temperatur regulator Supplementary heating
S1
ON/OFF-switch for Supplementary heating
When assembling supplementary heating (E8)
observe the switching capacity.
E6
vi
E4
E2
ws
br
L3 L2 L1
F1
L3 L2 L1
K1
X1
1 L3 L2 L1
3/N/PE 400 V
RTI-EP2
23