Start-Up; Starting Up The Electrical Immersion Heater; Troubleshooting; Function Of The Safety Cut-Out - Vaillant 0020230734 Betriebsanleitung

230 V = 2 kW
3
400 V = 4 kW
3
400 V = 6 kW
3
4. Guide the cable (2) through the power supply open-
ing and into the housing, and secure it using the PG
screwed connection (1).
– Recommended tightening torque: ≤ 6.0 Nm
5. Connect the conductors to the terminal block (3).
6. Fit the seal and connector housing, and install the four
hex screws.
– Recommended tightening torque: ≤ 1.9 Nm
7. Fit the rotary knob on the setting control.
6

Start-up

6.1

Starting up the electrical immersion heater

1. Fill the domestic hot water cylinder.
2. Check the inspection opening for leaks.
0020230754_00 0020230734 Installation instructions
L1 N
1
2
L3 L2 L1 N
3. Install the insulating elements.
4. Switch on the power supply.
5. Use the setting wheel to set the temperature to which
you want to heat the electrical immersion heater.
1
2
7
7.1
If the water temperature in the cylinder rises above 95 °C,
L3 L2 L1 N
the safety cut-out (SCO) on the electrical immersion heater
switches off the power supply.
7.2
1
2
1. Switch off the power supply.
2. Remove the insulating elements from the electrical im-
mersion heater.
3. Remove the rotary knob (5) from the setting control.
A
C

Troubleshooting

Function of the safety cut-out

Releasing the safety cut-out after shutdown

Caution.
Risk of material damage caused by over-
heating!
If the fault that caused the product to shut
down is not rectified, the product may be-
come damaged.
▶
Do not switch the safety cut-out back on
until the cause of the fault that triggered
the safety cut-out has been eliminated.
1 2 3
5 4
Start-up 6
B
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