Electrical Installation - Vaillant atmoTEC exclusive Installation And Maintenance Instructions Manual

5 Installation
2. Insert the flue pipe (1) into the flue connection (2).
3. Ensure that the flue pipe is positioned correctly.
5.8

Electrical installation

Only qualified electricians may carry out the electrical install-
ation.
Danger!
Risk of death from electric shock!
The mains connection terminals L and N re-
main live even if the product is switched off.
▶
Switch off the power supply.
▶
Secure the power supply against being
switched on again.
5.8.1 Opening the electronics box
1. Remove the front casing. (→ Page 12)
2. Undo the clips on the upper cover of the electronics
box.
3. Hinge up the cover.
16
5.8.2
1
2
1. Route the mains cable and low-voltage cable with suffi-
cient space between them.
2. Guide the cables through the grommet in the base of
the product and into the electronics box.
3. Shorten the connection cables to the appropriate
length.
4. Strip the outer sheathing of flexible lines to a maximum
of 30 mm to prevent short circuits if a strand accident-
ally comes loose.
5. Ensure inner conductor insulation is not damaged when
stripping the outer sheathing.
6. Only strip inner conductors just enough to establish
stable connections.
7. To avoid short circuits resulting from loose individual
wires, fit conductor end sleeves on the stripped ends of
the conductors.
8. Screw the respective plug to the connection cable.
9. Check whether all conductors are sitting mechanically
securely in the terminals of the plug.
10. Plug the plug into the associated PCB slot.
11. Secure the cables in the electronics box using the
strain reliefs.
5.8.3
1. Make sure that the nominal mains voltage is 230 V.
2. Open the electronics box. (→ Page 16)
3. Connect the product using a fixed connection and a
partition with a contact gap of at least 3 mm (e.g. fuses
or power switches).
–
Installation and maintenance instructions atmoTEC exclusive, atmoTEC plus 0020214272_04
Carrying out the wiring
Caution.
Risk of material damage caused by incor-
rect installation.
Mains voltage at the incorrect plug terminals
may destroy the electronics.
▶
Do not connect a mains voltage to the
eBUS (+/−) terminals.
▶
Only connect the mains connection line to
the terminals marked for the purpose.
30 mm max.
Establishing the power supply
Power supply cable: Flexible cable (dia-
2
meter ≥ 3 x 0.75 mm
)