Appliance Wiring Diagram - Stiebel Eltron ETW 120 Manuel D'utilisation Et Installation

INsTAllATION
sPEcIfIcATION

15.5 Appliance wiring diagram

Wiring diagram
Wiring diagram layout
A1 Electronic charge controller
A4 User interface PCB
Core sensor – charge (at 20 °C ≈ 541 X)
B1
E1-E6 Heating elements
F1
High limit safety cut-out
F2
Fuse (250 2A slow)
K1
Thermal relay
M1 Storage heater fan
N4 Protective thermostat – charge
N5 Protective thermostat – discharge
N6 Protective thermostat only for 3.0-4.8 kW
R1 Adjuster – charge 10 kΩ (rotary selector)
V4 Operating and fault display
X1 Mains terminal
X2
Terminal
X3
DC terminal (0.9 – 1.43 V)
X16
Control signal matching, four-stage
X17 Output reducer, four-stage
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Special accessories
(Not part of the standard delivery. Tick the boxes for each special
accessory installed.)
RTI-E3 RTI-EP2
A2
Electronic discharge control
Room temperature sensor – discharge (at 20 °C ≈ 27.1 kΩ)
B2
R2
Adjuster – discharge 10 kΩ
S2 Room thermostat ON/OFF switch
X25 Internal connecting cable A1-A2
Booster heater
E8 Booster heater
N2 Booster heater thermostat
N3 Booster heater thermostat
S1 Booster heater ON/OFF switch
When installing a booster heater (E8), take the switching output
of the room thermostat into account.
ETW 120, 180, 240, 300, 360, 420, 480 electronic | 43